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Showing papers on "Secondary air injection published in 1984"


Patent
03 Feb 1984
TL;DR: In this article, a method for unthrottled load control of an internal combustion engine by means of exhaust gas is presented. But this method requires entirely freely adjustable opening and closing times for the inlet and exhaust valves.
Abstract: The present invention relates to a method for unthrottled load control of an internal combustion engine by means of exhaust gas. The method requires entirely freely adjustable opening and closing times for the inlet and exhaust valves. Starting at full load with the minimum of exhaust gas in the cylinder the amount of exhaust gas in the cylinder is increased thereby reducing the available combustion chamber volume for receiving fresh mixture mass thereby reducing the load. The fresh mixture mass and the exhaust gas mass are controlled exclusively by coordinating the opening and closing times of the intake and exhaust valves.

85 citations


Patent
Gary W. Lewis1
19 Mar 1984
TL;DR: In this article, a testing apparatus for measuring the particulate and/or gaseous content of an exhaust source for use in evaluating the exhaust emissions of internal combustion engine provides both fixed flow and proportional flow control of the diluted particulate containing sample.
Abstract: A testing apparatus for measuring the particulate and/or gaseous content of an exhaust source for use in evaluating the exhaust emissions of internal combustion engine provides both fixed flow and proportional flow control of the diluted particulate containing sample. The sample is diluted with carefully metered, clean dry air by one or more hybrid electrical-fluid control circuits for remarkably improved response time and accuracy.

56 citations


Patent
Koichi Torimoto1
29 Oct 1984
TL;DR: In this paper, a combustion apparatus for a vehicle for regenerating a filter provided in an exhaust gas passage of an engine by burning and removing fine particles in the exhaust gas comprising an air supply passage for coaxially supplying air along the outer periphery of a fuel injection nozzle, a shut-off valve mounted at the downstream side end of said combustion chamber, and a controller for allowing the inflow of the coaxial air for a predetermined period of time after stopping the fuel supply from the fuel injection injection nozzle and then closing the shutoff valve.
Abstract: A combustion apparatus for a vehicle for regenerating a filter provided in an exhaust gas passage of an engine by burning and removing fine particles in the exhaust gas comprising an air supply passage for coaxially supplying air along the outer periphery of a fuel injection nozzle, a shut-off valve mounted at the downstream side end of said combustion chamber for preventing reverse flow of the exhaust gas, and a controller for allowing the inflow of the coaxial air for a predetermined period of time after stopping the fuel supply from the fuel injection nozzle and then closing the shut-off valve.

35 citations


Patent
17 May 1984
TL;DR: In this paper, a heater is disclosed for burning combustible particulate fuels in an internal retort with the aid of a primary air supply manifold that surrounds the open end of the retort and directs primary combustion air into the particulates at the open retort end.
Abstract: A heater is disclosed for burning combustible particulate fuels. The fuels are delivered to an internal retort at a constant rate. They are burned at an open end of the retort with the aid of a primary air supply manifold that surrounds the open end of the retort and directs primary combustion air into the particulates at the open retort end. Secondary combustion air is directed through an annular air supply manifold situated above the open retort end. The hot exhaust gases pass upwardly through a combustion chamber and subsequently downwardly through an exhaust gas plenum to an exhaust gas discharge. Flow of the combustion air and exhaust gases is induced by a vacuum blower mechanism by which a reduced pressure is produced within the combustion chamber to draw air through the primary and secondary air supply manifolds. The exhaust gases drawn off by the vacuum mechanism are pressurized on a discharge side of the vacuum mechanism. A heat exchanger can be provided in close proximity to the combustion chamber and exhaust gas plenum to receive heat generated thereby and to transmit it to useful areas within the surrounding structure. The heat exchanger may also be utilized as an insulator between the hot surfaces of the exhaust plenum and a fuel hopper which may be supplied as an integral part of the heater.

31 citations


Patent
Erhard Sitter1
24 Aug 1984
TL;DR: In this paper, a fuel injection apparatus with pilot injection and main injection in Diesel engines is proposed, where a high-pressure injection pump delivers a main injection quantity to the main injection nozzle, while a hydraulic pilot injection auxiliary pump driven by the supply pressure of the high pressure injection pump positively displaces a pilot injection quantity, via a piston, and delivers it to a pilot injector.
Abstract: A fuel injection apparatus with pilot injection and main injection in Diesel engines is proposed. A high-pressure injection pump delivers a main injection quantity to a main injection nozzle, while a hydraulic pilot injection auxiliary pump driven by the supply pressure of the high-pressure injection pump positively displaces a pilot injection quantity, via a piston, and delivers it to a pilot injection nozzle which is either separate or combined with the main injection nozzle. In the main injection area, a storage piston is separately provided, which without being mechanically connected to the pilot injection piston and without a pressure division is initially acted upon solely by the supply pressure of the high-pressure injection pump and only in the course of the pilot injection piston stroke is a line leading on to the storage piston opened up, at least indirectly, for the pumped fuel.

29 citations


Patent
14 Nov 1984
TL;DR: A gas turbine engine infra-red radiation suppressor comprising an exhaust nozzle which is surrounded by a duct having a plurality of diffuser vanes at its downstream end is described in this paper.
Abstract: A gas turbine engine infra-red radiation suppressor comprising an exhaust nozzle which is surrounded by a duct having a plurality of diffuser vanes at its downstream end. The exhaust nozzle and duct constitute an ejector which is powered by the exhaust efflux from the exhaust nozzle and draws ambient air into the duct through a gap between the exhaust nozzle and the duct. The air serves to cool the exhaust efflux and thereby reduce its infra-red radiation emission, and the diffuser vanes prevent direct line of sight of the hot exhaust nozzle.

28 citations


Patent
27 Feb 1984
TL;DR: In this paper, a valve assembly shuts off fuel flow to the injector if the fuel flow during an injection event exceeds a desired upper limit, where the upper limit is defined by the valve assembly.
Abstract: In a fuel injection system having an injector which delivers fuel to an engine in discrete injection events, a valve assembly shuts off fuel flow to the injector if the fuel flow during an injection event exceeds a desired upper limit.

28 citations


Patent
17 Jan 1984
TL;DR: In this paper, a method for the control of four-stroke piston internal combustion engines with load control by means of the amount of fresh mixture in the working chamber and with variable exhaust fraction in the cylinder charge is presented.
Abstract: In a method for the control of four-stroke piston internal combustion engines with load control by means of the amount of fresh mixture in the working chamber and with variable exhaust fraction in the cylinder charge, the amount of fresh mixture is controlled by way of mutually independent inlet and exhaust devices, with a constant flow cross section in the intake and exhaust gas systems outside the inlet and exhaust devices, exclusively by opening and closing times of the inlet and exhaust devices which are matched to one another, in such a way that a certain amount of exhaust gas is present in the cylinder on conclusion of the charge cycle and the remaining cylinder volume for receiving fresh mixture is thereby reduced for the purpose of load control, the exhaust gas and fresh mixture fractions being mixed in the cylinder during the filling and compression process.

24 citations


Patent
09 Nov 1984
TL;DR: In this paper, a heat exchanger system for utilizing the exhaust gases of an internal combustion engine to heat liquid is described. But it is not shown how to use it in a carpet and furniture cleaning system.
Abstract: A heat exchanger system for utilizing the exhaust gases of an internal combustion engine to heat liquid. A system for heating water to be used in a carpet and furniture cleaning system is disclosed. A pump circulates water from a holding tank through a serial circuit including copper coils wound around primary exhaust pipes from an engine to a primary heat exchanger and a secondary exhaust pipe from the heat exchanger to the remainder of the exhaust system. The circuit includes the primary heat exchanger which comprises concentric copper tubes forming a water jacket therebetween. The exhaust gases enter the inner tube adjacent opposite ends and a deflector plate adjacent each entry causes a helical passage of the exhaust gases from either end along the inner tube in a manner causing maximum turbulence so as to maximize heat transference to the wall of the inner tube and thus the water jacket. The secondary exhaust pipe exits the exhaust gases mid-way between the ends of the heat exchanger. The water passes along the water jacket from one end of the heat exchanger to the other and then back to the holding tank for use or possible re-circulation. A solenoid valve directs the returning water to waste if the temperature in the holding tank reaches a predetermined high when usage of water is low.

24 citations


Patent
16 Apr 1984
TL;DR: In this paper, a method and apparatus for deinking a fiber stock or slurry is presented, in which air is introduced under pressure by way of a porous sintered sleeve, while the mixing is achieved by the provision of three turbulence discs in the preferred embodiment.
Abstract: A method and apparatus for deinking a fibre stock or slurry. In order to optimize the separation process the invention proposes to independently control the air injection phase, the mixing phase, and the separation phase by splitting them into separate steps. Thus, there is provided a separation cell which is fed with slurry from an inlet. Air is introduced into the slurry before entry into the separation cell and before entering a mixing section which mixes the air and slurry before entering the separation cell. The air is introduced under pressure by way of a porous sintered sleeve, while the mixing is achieved by the provision of three turbulence discs in the preferred embodiment. Alternative turbulent generating means may be employed. The mixing ensures contact of the ink with the air bubbles which separate out in the separation cell and rise to the surface as a foam. The foam is removed by suction, while the deinked fibre slurry is drawn off from the tank by means of a weir or stand pipe. A separation plate isolates the foam from the draw off section of the tank. It is preferred that the separation cell is divided into a plurality of cells which are fed from a respective inlet, each having a respective said air inlet and mixing section.

23 citations


Patent
12 Jan 1984
TL;DR: In this article, a bypass line is provided between the intake pipe connected to the charger and situated downstream of the throttle valve and the exhaust pipe opening into the turbine, where a valve shuts off the bypass line only when the exhaust gas pressure in the exhaust manifold exceeds the charging pressure in intake manifold by a certain amount.
Abstract: In an internal combustion engine with an exhaust turbocharger, a bypass line is provided between the intake pipe connected to the charger and situated downstream of the throttle valve and the exhaust pipe opening into the turbine. Arranged in the bypass line is a valve which shuts off the bypass line only when the exhaust gas pressure in the exhaust pipe exceeds the charging pressure in the intake pipe by a certain amount and a connection is having a disadvantageous effect on the performance of the internal combustion engine. Below this pressure range, the valve is open and the connection between the intake pipe and the exhaust pipe is free. In the operating condition of the internal combustion engine in which the charging pressure is higher than the exhaust gas pressure, it is thereby possible for fresh gas from the intake pipe to pass into the exhaust pipe and for automatic supplying of secondary air to take place. If, on the other hand, the exhaust gas pressure is higher than the charging pressure, exhaust gas flows across from the exhaust pipe into the intake pipe, automatic exhaust gas recirculation thus taking place.

Patent
21 Nov 1984
TL;DR: In this paper, an insulated secondary combustion chamber, catalytic igniter, and regenerative heat transfer are combined to guarantee substantially continuous combustion within the secondary combustion chambers even when conditions in the primary combustion chamber change.
Abstract: The heating appliance includes an insulated secondary combustion chamber (22, 110) where a mixture of exhaust gases from the primary combustion chamber (12, 112) and secondary air is burned. A catalytic igniter (34, 130) is provided in the secondary combustion chamber. In a retrofit embodiment (115) for existing stoves, a sheet metal partition (122) in the secondary combustion chamber allows heat transfer from spent gases to the entering mixture of exhaust and secondary air. In a unitary stove embodiment (10), secondary air is heated by the spent gases which proceed to remote heat exchangers (48) separated from the primary firebox by ventilated air spaces (50). The combination of the insulated secondary combustion chamber, catalytic igniter, and the regenerative heat transfer assure substantially continuous combustion within the secondary combustion chamber even when conditions in the primary combustion chamber change. To prevent room emissions, the stove door is sealed by a vented double gasket system (62, 64).

Patent
31 Aug 1984
TL;DR: An air deflector unit for use on a vehicle to improve aerodynamic flow of air around the vehicle includes a forward facing shield having a forward-facing air inlet therein and an inwardly facing air exhaust as mentioned in this paper.
Abstract: An air deflector unit for use on a vehicle to improve aerodynamic flow of air around the vehicle includes a forward facing shield having a forward facing air inlet therein and an inwardly facing air exhaust. An air flow passage is defined between the air inlet and the air exhaust. An air conditioning compressor is mounted in the air flow passage. Flow of air through the condenser is controlled by controlling louvers positioned in the inlet. Control is in response to the operation of the air conditioning system of which the compressor is a part.

Patent
24 Jul 1984
TL;DR: In this article, an exhaust and exhaust cooling system for an outboard motor including an improved slow speed exhaust gas discharge including a plurality of expansion chambers and a water chamber through which exhaust gases must pass before discharge.
Abstract: An exhaust and exhaust cooling system for an outboard motor including an improved slow speed exhaust gas discharge including a plurality of expansion chambers and a water chamber through which exhaust gases must pass before discharge to an above the water slow speed exhaust gas discharge opening. A number of cooling jackets encircle portions of the exhaust system and coolant from the engine is delivered from these jackets both into the high speed and slow speed exhaust gas discharges.

Patent
17 Feb 1984
TL;DR: In this article, a filter is disposed in the exhaust passage upstream of the filter to burn off the particles deposited on the filter, and fuel is supplied to the burner for a preset time when the filter clogs.
Abstract: An exhaust passage extends from an internal combustion engine to conduct exhaust from the engine. A filter is disposed in the exhaust passage to filter particles out of the exhaust. A burner is disposed in the exhaust passage upstream of the filter to burn off the particles deposited on the filter. Fuel is supplied to the burner for a preset time when the filter clogs. The supplied fuel is ignited in the burner. In the case where the fuel supplied to the burner ceases to burn prior to the end of the preset time, the fuel supply to the burner is interrupted.

Patent
07 Nov 1984
TL;DR: In this article, an assist air lead-in hole is connected with an EGR passage leading from suction passage 5 at its point overstream a throttle valve 19, and an exhaust gas feedback passage 15 leading from the exhaust passage 6 converges with said passage 14 on its midway.
Abstract: PURPOSE:To improve gasification and atomization of the fuel by supplying the air assist in synchronization with fuel injection from each fuel injection valve. CONSTITUTION:An assist air lead-in hole 11b is connected with an assist air passage 14 leading from the suction passage 5 at its point overstream a throttle valve 19, and an exhaust gas feedback passage 15 leading from the exhaust passage 6 converges with said passage 14 on its midway. A assist air control valve 16 is installed on this assist air passage 14 at its point 14a overstream the convergence X with an EGR passage 15, while an EGR control valve 17 is installed on this EGR passage 15. Also a timing control valve 18 is installed on the assist air passage 14 at its point 14b downstream the convergence X. These control valves 16, 17, 18 are opened and closed by control signals A, B, C from a controller 19.

Patent
11 Jan 1984
TL;DR: In this article, a method for providing a poultry house or other livestock enclosure with an environment favorable for animal growth and unfavorable to propagation of microorganisms is described, which includes starting the grow out cycle with the birds confined to about one-quarter of the enclosure and expanding the area with increasing body weight while keeping the body weight to area at least one pound per square foot; injecting tempered outside air mixed with inside air through an air jet device into said enclosure at a temperature below enclosure air temperature and at a velocity of about 10,000 cubic feet per minute with intermittent operation having a
Abstract: A method is disclosed for providing a poultry house or other livestock enclosure with an environment favorable for animal growth and unfavorable to propagation of microorganisms which includes starting the grow out cycle with the birds confined to about one-quarter of the enclosure and expanding the area with increasing body weight while keeping the body weight to area at least one pound per square foot; injecting tempered outside air mixed with inside air through an air jet device into said enclosure at a temperature below enclosure air temperature and at a velocity of about 10,000 cubic feet per minute with intermittent operation having a maximum duty factor of about 0.4 and a periodicity of about ten minutes. When outside air temperature is below 30° F. the effective area for egress of air is reduced by closing the poultry house curtains to produce a slight positive pressure during air injection; air is circulated within the house intermittently or continuously by fans mounted near the peak of the roof and directed lengthwise of the house; the duty factor of the air injection process is increased as total body weight increases and volume of injected outside air is reduced for lower outside temperatures.

Patent
02 Apr 1984
TL;DR: To improve the efficiency of flash flotation for separating off surfactants, emulsified oils and waxes and fats from untreated water, with simultaneous reduction of the mechanical complexity and achievement of a space-saving high-performance process arrangement, the circuit sequence selected is receiver for untreated water and filter for separating out coarse water impurities, air injection point for aerating the untreated water as discussed by the authors.
Abstract: To improve the efficiency of flash flotation for separating off surfactants, emulsified oils and waxes and fats from untreated water, with simultaneous reduction of the mechanical complexity and achievement of a space-saving high-performance process arrangement, the circuit sequence selected is receiver for untreated water, filter for separating out coarse water impurities, air injection point for aerating the untreated water, arranged upstream or downstream of the feed pump, feed pump for taking in the untreated water and for pressure increase, delay section for the dissolution of air under pressure into the untreated water, injection point for flocculation chemicals upstream or downstream of the flashing valve, flashing valve for vortexing the flocculation chemicals and for formation of air bubbles by flashing, reaction section for the formation of dirt flocks and build-up of the air bubbles formed on these, reaction vessel for utilising the buoyancy of the dirt flocks loaded with air bubbles, sludge concentrate discharge in the point of the reaction vessel, filter bed for separating out sedimenting materials, riser pipe and weir for adjusting the sludge concentrate discharge from the point of the reaction vessel. To backwash the filter bed, an outlet valve is assigned to the bottom end of the reaction section and a feed valve having a downwardly directed guide tube is assigned to the weir and riser pipe. The backwashing of the filter bed can thus AlacunaU by opening the ... Original abstract incomplete.

Patent
Martin Brand1
20 Dec 1984
TL;DR: In this paper, a fuel vapor filter is used to prevent the collection of fuel vapors in the intake system when the combustion engine is not in operation and in particular to prevent enrichment of the fuel-air mixture through the exhaust line.
Abstract: A ventilation device for the fuel tank of a motor vehicle is provided with ventilation line (3) which connects the tank with the atmosphere by means of a fuel vapor filter. For regenerating purposes, the filter 4 is connected to the intake system 6 of the vehicle combustion engine 1 by means of a filter exhaust line (5), so that air is taken in through filter 4 when the combustion engine 1 is in operation and thereby the fuel accummulated in the filter is removed. In order to prevent the collection of fuel vapors in the intake system 6 when the combustion engine is not in operation and in particular to prevent the enrichment of the fuel-air mixture through the exhaust line while the combustion engine is off, a valve 7 is provided in the exhaust line 5 which is closed when the combustion engine 1 is off and which opens the exhaust line 5 increasingly in accordance with the increased rotational speed, so that only a low amount is suctioned at a low rotational speed, but at a certain rotational speed sufficient air is taken in through the filter 4 thereby effectively regenerating the same.

Patent
01 Feb 1984
TL;DR: In this article, a marine propulsion device comprising a propulsion unit including an internal combustion engine including an exhaust gas outlet, and a lower unit connected to the engine and including a rotatably supported propeller intended to be at least partially submerged in water, was described.
Abstract: A marine propulsion device comprising a propulsion unit including an internal combustion engine including an exhaust gas outlet, and a lower unit connected to the engine and including a rotatably supported propeller intended to be at least partially submerged in water, an exhaust gas discharge outlet intended to be submerged in water when the engine is operating at low speed, an exhaust gas duct extending from the engine exhaust gas outlet to the discharge outlet, an exhaust relief outlet communicating with the atmosphere, and an exhaust relief passageway extending from the engine exhaust gas outlet to the exhaust relief outlet.

Patent
11 Dec 1984
TL;DR: In this paper, an exhaust control system for 2-cycle engines has a main exhaust passage, auxiliary exhaust passages arranged in parallel with the main passage, and an expansion chamber communicatable with the exhaust passage.
Abstract: An exhaust control system for 2-cycle engines has a main exhaust passage, auxiliary exhaust passages arranged in parallel with the main exhaust passage, and an expansion chamber communicatable with the main exhaust passage. During low-speed operation of the engine, the auxiliary exhaust passages are shut-off while the expansion chamber is connected to the main exhaust passage, whereas, during high-speed operation of the engine, the auxiliary exhaust passages are opened and the expansion chamber is closed.

Patent
03 Jul 1984
TL;DR: An air guide casing as discussed by the authors includes an air filter, an air throttle valve, an exhaust gas recycling pipe, a mixing chamber in fluid communication with the recycling pipe and at least one cylinder of an internal combustion engine.
Abstract: An air guide casing includes an air filter, an air throttle valve, an exhaust gas recycling pipe, a mixing chamber in fluid communication with the recycling pipe, and a distributor chamber in fluid communication with the mixing chamber and at least one cylinder of an internal combustion engine. The air guide casing is provided with means for collecting a mixture of recycled exhaust gas and filtered intake air and means for distributing that mixture to the cylinders. Thus, the air guide casing provides a separate mixing section in the air guide casing to achieve good mixing of the air for combustion with the incoming exhaust gas prior to introduction of the exhaust gas and clean air into the distributor chamber.

Patent
29 Oct 1984
TL;DR: An exhaust brake system for internal combustion engines includes an exhaust valve within the exhaust duct which is closed or opened for the braking of a vehicle during engine operation by means of an engine brake valve as discussed by the authors.
Abstract: An exhaust brake system for internal combustion engines includes an exhaust valve within the exhaust duct which is closed or opened for the braking of a vehicle during engine operation by means of an engine brake valve. A magnetic valve is arranged within the control duct and is controlled by an electrical circuit connected to a terminal of the ignition switch and to the positive terminal of the generator in such a manner that the exhaust valves are closed during the starting of the engine and when the engine is idling. The formation of white exhaust smoke during cold starting of the engine and the formation of blue exhaust smoke during idling of the engine is decreased.

Patent
17 May 1984
TL;DR: In this paper, the subject exhaust gas and blow-by recirculation system overcomes this deficiency by inducing the oily blowby within a passage of a cylinder head, which is located in close proximity to one of the plurality of combustion chambers such that the high velocity or flow rate of the intake air reduces the time and effect of the reaction between the hot exhaust gases and the oily Blow-by.
Abstract: Systems have been used to combine exhaust gas and blow-by for internal combustion engines. The mixing of the oily blow-by and the exhaust, however, has caused carbon particles to cake within the walls of intake passages and near intake valves. The subject exhaust gas and blow-by recirculation system overcomes this deficiency by inducing the oily blow-by within a passage of a cylinder head. The passage is located in close proximity to one of the plurality of combustion chambers such that the high velocity or flow rate of the intake air reduces the time and effect of the reaction between the hot exhaust gas and the oily blow-by. The subject exhaust gas and blow-by system utilizes a director tube extending through a bore of the cylinder head. The director tube is orientated to enable the flow of blow-by to enter the intake air in line with the flow path.

Journal ArticleDOI
TL;DR: In this paper, the authors proposed a simplified model based on the assumption that the air and the water domains are separated by an abrupt interface, and two simplified geometries were investigated: a one-dimensional vertical column with air injection and pumping at the top, and a partially penetrating well in the center of a cylindrical domain.

Patent
Akira Fujimura1, Shunzaburo Ozaki1
03 Feb 1984
TL;DR: In this article, an air/fuel ratio control system for an internal combustion engine having an air induction system equipped with a secondary air passage communicated with an air intake passage and an oxygen sensor disposed in an exhaust system of the engine is presented.
Abstract: An air/fuel ratio control system for an internal combustion engine having an air induction system equipped with a secondary air passage communicated with an air intake passage and an oxygen sensor disposed in an exhaust system of the engine, the flow of the secondary air through the secondary air passage being controlled in accordance with a feedback control signal based on an output signal of the oxygen sensor, comprises a temperature sensor for sensing the temperature of the intake air supplied to the engine, and a control means for preventing the supply of the secondary air when the intake air temperature detected by the temperature sensor is below a predetermined level. The start timing of the feedback air/fuel ratio control is thus determined in accordance with the intake air temperature, to alleviate the drawbacks of the conventional air/fuel ratio control system in which the start timing of the feedback control is determined in accordance with the engine coolant temperature.

Patent
Rudolf Coenraad Rijkeboer1
11 Jan 1984
TL;DR: In this article, an apparatus for the air-injection of liquid gas into the intake tube of an internal combustion engine is described, and the adjustment of the metering piston is effected in accordance with the quantity of air aspirated by the engine as determined by an air flow rate meter.
Abstract: An apparatus for the air-injection of liquid gas into the intake tube of an internal combustion engine. The apparatus includes a vaporizer pressure regulating valve, downstream of which a metering valve having a metering piston is disposed, which being movable in a guide bore opens a metering opening to a greater or lesser extent. The adjustment of the metering piston is effected in accordance with the quantity of air aspirated by the engine as determined by an air flow rate meter, as a result of which a quantity of liquid gas corresponding to the aspirated air quantity can be metered. The mixture of liquid gas and air can be influenced by a control pressure prevailing in a control chamber of the vaporizer pressure regulating valve, and this control pressure is influenced by a control pressure regulating valve and the movable valve element of which is engaged on one side by the intake tube pressure upstream of the air flow rate meter and on the other side, coupled via a throttle, by the control pressure and a regulating spring and to the valve seat of which a negative-pressure line leads from the intake tube from downstream of a throttle valve.

Patent
09 Feb 1984
TL;DR: In the regeneration of a filter which filters and collects exhaust-gas particles contained in exhaust gases of an internal combustion engine by combustion, two injection pipes for pressure feeding a fuel to a fuel injection nozzle from a fuel inject pump for a plurality of cylinders are selected, and a proper amount of a pressurized fuel passing through one injection pipe is jetted to a cylinder in the end of an expansion stroke or in an exhaust stroke through another injection pipe, and it is discharged to the exhaust of the engine in the unburnt or burnt condition.
Abstract: In the regeneration of a filter which filters and collects exhaust-gas particles contained in exhaust gases of an internal combustion engine by combustion, two injection pipes for pressure feeding a fuel to a fuel injection nozzle from a fuel injection pump for a plurality of cylinders are selected, and a proper amount of a pressurized fuel passing through one injection pipe is jetted to a cylinder in the end of an expansion stroke or in an exhaust stroke through another injection pipe, by controlling a changeover valve, and it is discharged to the exhaust of the engine in the unburnt or burnt condition. A valve capable of varying the flowrate is used as the changeover valve.

Patent
25 Feb 1984
TL;DR: In this article, a method for producing an optimum operating temperature for the exhaust catalytic converter of internal-combustion engines is described, the engine exhaust gas being divided into two secondary flows, one of which is cooled and the other is not cooled.
Abstract: A method for producing an optimum operating temperature for the exhaust catalytic converter of internal-combustion engines is described, the engine exhaust gas being divided into two secondary flows, one of which is cooled and the other is not cooled, the secondary flows being reunited upstream of the catalytic converter and the catalytic converter temperature being controlled by adjusting the proportion of the two secondary flows.

Patent
19 Mar 1984
TL;DR: In this article, the authors proposed to utilize the high-quality, high-temperature exhaust heat and the unreacted fuel by burning the high temperature, high pressure exhaust air and exhaust fuel from a solid electrolyte fuel cell, driving a compressor and a generator via an expansion turbine introduced with the hightemperature, highpressure combustion gas after combustion, generating vapor via the exhaust gas at the expansion turbine outlet, and driving a steam turbine.
Abstract: PURPOSE:To effectively utilize the high-quality, high-temperature exhaust heat and the unreacted fuel by burning the high-temperature, high-pressure exhaust air and exhaust fuel from a solid electrolyte fuel cell, driving a compressor and a generator via an expansion turbine introduced with the high-temperature, high- pressure combustion gas after combustion, generating vapor via the exhaust gas at the expansion turbine outlet, and driving a steam turbine. CONSTITUTION:The high-temperature, high-pressure air from a compressor is fed to an air preheater 43. The high-temperature, high-pressure air from the preheater 43 is fed to a solid electrolyte fuel cell cathode 40. Fuel 59 is preheated 60 by a fuel preheater 47 by using the exhaust gas 57 from an expansion turbine 45 and is fed to a solid electrolyte fuel cell anode 41. In the solid electrolyte fuel cell, the fuel from the anode is reacted with oxygen ions moved from the cathode through the solid electrolyte 42, thus causing the movement of electrons. The exhaust fuel 61 from the anode outlet and the exhaust air 55 from the cathode outlet are guided into an auxiliary combustor 44 for combustion. The combustion gas 56 from the auxiliary combustor 44 drives the expansion turbine 45. The combustion turbine 45 drives an air compressor 39 and a generator 46.