Showing papers on "Reducer published in 1981"

Plastic pipe fitting

Abstract: A plastic pipe element comprises an inner one-piece liner of thermoplastic material. The liner is formed so as to include at least one cylindrical leg having a free outer end and inner end disposed intermediate opposite ends of the liner. At least one pipe section is formed comprising an inner thermoplastic lining and a fiber reinforced outer layer. That pipe section is bonded to an outer surface of the cylindrical leg such that an inner end edge of the pipe section overlies the liner. A sheet of fiber reinforced thermosetting resin molding compound is applied externally around the inner end edge of the pipe section and is subjected to pressure and heat to form the sheet into a desired shape. Thereafter, the sheet is allowed to harden. Elements formed in this manner include a T-fitting, a pipe flange, a 90° fitting, a reducer fitting, a 45° fitting, and a pipe cap.

Method and apparatus for recovering waste oil

Abstract: Oil is recovered from a mixture of oil and water by heating the mixture, adding a de-emulsifier, passing the mixture through a first vibrating screen, adding a surface tension reducer, processing through a hydrocyclone, passing through a second vibrating screen, and separating the oil from water by settling.

Motor reducer with braking means

Abstract: The mechanical unit, equipped with an electric motor rotating at a high velocity, turns a wheel hub at a low velocity by means of a speed reducer and includes an external brake disk rotating at an intermediate velocity. The brake disk cooperates with conventional elements to constitute a unified external braking means which operates effectively and is easily accessible.

Pressure reducer for remotely controlled hydraulic actuator - has piston with peripheral grooves around active area to reduce pressure hysteresis at output

Abstract: A hydraulic actuator is provided with a pressure reducer in which which a piston displaces in a cavity in a body. An oscillating cam, displaced by a lever, modifies the calibration of the reducer. The cavity contains a bore hole in which the active part of the piston displaces to control outlet pressure at an outlet orifice depending on the inlet pressure to an annular chamber. The piston has an axial blind hole opening into the bore hole. Two transverse orifices diametrically opposite communicate with the blind hole to ensure communication with the external surface. Peripheral grooves around the piston reduce pressure hysteresis for the regulated pressure at the outlet orifice.

Brake blocking protection system for vehicle - uses spring-loaded piston with tandem main cylinder

Abstract: The system has a brake reducer (10) monitoring the through-path through a brake line (1,1'), 2,3) A modulator piston (14) belonging to the brake reducer is operated via a switching and safety piston (15) by a solenoid valve (18) under the pressure of the power supply device (21,22) A spring (19) acts on the switching and safety piston that brings the brake-reducer control valve (11) into the through-flow position when the power supply fails The spring's force is set to a maximum braking pressure in the system and the control valve is simultaneously the maximum-pressure safety valve

Planetary speed reducer

Abstract: A planetary speed reducer having a movable output ring gear; a stationary or fixed ring gear; the ring gears having different numbers of rigid involute teeth, different pitch diameters, equal internal diameters and equal base pitches; a sun gear; and at least one planetary gear mounted for engagement with the sun gear and with each of the ring gears.

Power transmitting device for an oil well pump

Abstract: A power transmitting device for an oil well pump of the type which utilizes a rotating power source and provides an input capable of operating a pair of cranks for driving a reciprocating pump. The power transmitting device includes a first speed reducer having an input shaft with a pinion bevel gear mounted thereon with the input shaft being operably connected to the power source. The first speed reducer also includes a ring bevel gear in meshing engagement with the pinion bevel gear which is fixedly mounted on a intermediate location of a rotatable output shaft. The output shaft operates a second speed reducer at each end thereon which is capable of providing an output which can be directly coupled to the cranks. The invention includes a method of manufacturing utilizing a number of existing components.

Needle operating device for pelton wheel

Abstract: PURPOSE:To provide a device capable of enduring against a high pressure caused by a water thrust force and of which size can be reduced by a method wherein an electrical operating gear reducer is operated to rotate a driving shaft, a needle is reciprocated and a degree of opening of the needle is adjusted. CONSTITUTION:When an electrical driving gear reducer 20 is operated, a needle 6 is axially reciprocated through a driving shaft 13, bevel gears 14, 15 and a needle threaded shaft 16 and a degree of opening of a nozzle pipe 4 is varied. Thrust force got through the reciprocating movement can be optionally selected by varying a pitch of each of male thread and female thread or by varying a speed reduction ratio of bevel gears. In this case, a nozzle pipe 4 is disposed within a runner housing 3. An electrical driving gear reducer 20 is connected to an upper end of a driving shaft 13 crossed at a right angle with an axis of the needle 6 and passing through an upper cover 12. The needle 6 having a female thread engaging with a male thread of the screw shaft 16 and a screw shaft supporting rod 18 for supporting an axial thrust force of the screw shaft 16 are provided.

Fluid pressure servomotor for clutch operation - has pressure reducer in piston to control piston thrust on lever

Abstract: The fluid pressure servomotor is for assisted control of a moving rotating part, such as a clutch lever. In the assisting cylinder is a piston placed under fluid pressure from a self regulated pressure reducer in the piston. The connection between the actuating device (2) and the piston is a rod (6) inside the piston (18) and it acts as the thrust part of the pressure reducer. The rod contacts a stop (43) on a surface (46) of the piston when the reducer valve (33) is fully open. The piston then presses on a clutch lever (8) to turn it.

Speed reducer control device for a vehicle having two independent pressurized fluid braking circuits

Abstract: The energization of the electric speed reducer of a vehicle, whose friction brakes for the front wheels and rear wheels are respectively controlled by two independent pressurized fluid circuits, is controlled by a plurality of pressure contacts. These pressure contacts are actuated by the pressure of a fluid and this pressure is permanently given a value tied to the higher of the two pressures existing in the two independent pressurized fluid circuits. A dual control relay valve of the ++ type is connected to these two circuits and to an independent source of pressurized fluid.

Speed changing shock reducing device for automatic change gear

Abstract: PURPOSE:To miniaturizd and simplify a device and to reduce shock at changing speed by inserting a reducer valve to reduce working pressure toward a friction element, except that it is in a kick-down condition, into a hydraulic pressure circuit from a shift valve to a friction element. CONSTITUTION:A speed change control hydraulic pressure system of an automatic change gear is equipped with a regulator valve 1, a manual valve 2, a 1-2 shift valve 3, a 2-3 shift valve 4, a 3-2 down shift valve 5, a line pressure booster valve 6, a pressure modifier valve 7, a throttle valve 8, a throttle fail-safe valve 9, a throttle modulator valve 10, a the first speed fixed range reducer valve 11, an accumulator 12, a 2-3 timing valve 13, a 3-2 timing valve 14, a speed changing shock reducing reducer valves 15, 15'. The speed changing shock reducing reducer valves 15, 15' reduce working hydraulic pressure toward a friction element, except that it is in a kick-down condition, at a constant rate.

Two stage speed reducer

Abstract: A two stage speed reducer having a primary reduction stage the output gear of which is fixed to an eccentric which causes an output planetary gear to orbit within a fixed ring gear. The eccentric forms the inner and outer races for coplanar bearings for the planetary gear and the output gear, respectively.

Pressure reducer for air-guide ducts in air-conditioning installations

Abstract: The invention relates to a pressure reducer for air-guide ducts in air-conditioning installations with a throttle flap which is mounted pivotably in a housing, a volume control in particular being connected downstream of the pressure reducer. In order that the pressure reducer generates an approximately constant differential pressure even in the case of variable volume flows, the surface of the throttle flap (2) is smaller than the associated flow cross-section in the housing (1) and a weight (G), which is adjustable in its relative position to the throttle flap (2), is arranged on the throttle flap (2). As a result of the varying effect of the flow forces on the surface sections of the throttle flap (2) situated on both sides of the pivot axis (3) on the one hand and as a result of the weight (G) on the other hand, return moments are created which result in the generation of an approximately constant differential pressure even in the case of variable flows. Moreover, flapping and vibrating movements of the throttle flap (2) are prevented.

Vibration reducer for vehicle engine - detects engine movement to control fuel injection to compensate ignition point changes

Abstract: The vibration reducer has a sensor (5) detecting periodic changes in the position of the engine and connected via a low pass filter (6) to a controller (2,7) that corrects phase and amplitude. The low pass filter removes the fundamental vibrations. The sensor is inductive. The controller comprises a microprocessor and controls the quantity of fuel injected into the engine. Alternatively, the sensor may consist of a mechanical arrangement of levers coupled directly to the control rod of the fuel injection pump. The mechanism is adjustable. Changes in ignition point are compensated and the injection pump optimises fuel supply to speed and position change.

Turbine bypass device

Abstract: PURPOSE:To prevent the fall in the performance of a condenser in particular, by introducing high temperature and pressure steam generated in a boiler or in a nuclear reactor, directly into the condenser bypassing a turbine at the starting or emergency stop of a thermal or nuclear power plant. CONSTITUTION:In temperature reduction equipment wherein excess steam is caused to bypass a turbine and the temperature of the steam is lowered by a temperature reducer 18 and directly conducted to a condenser 9 at the starting or emergency stop of a power plant, a cooling water pocket 23 for storing cooling water flowing from the temperature reducer 18 into the condenser 9 is provided near the connection of the temperature reducer 18 with the condenser 9. The cooling water in the pocket 23 is conducted to the hot well of the condenser 9 through a drain pipe 24.

Effort-limiting reducer for the lifting gear of a self-lifting platform

Abstract: not available for EP0052065Abstract of corresponding document: US4480491A force limiting gear reducer for a lifting pinion of self-elevating platform, comprising a gear reducer divided in two parts, a first of said parts being directly connected to a pinion shaft and pinion support and a second said part comprising a shaft-mounted prime reducer with brake and motor connected to an input shaft of the first reducer, a reaction arm of the shaft-mounted prime reducer being connected to a fixed point of a jacking mechanism by means of at least one hydraulic cylinder, means to control the oil pressure in the hydraulic cylinder, and abutments limiting the stroke of the hydraulic cylinder.

Solid and liquid trapping apparatus

Abstract: PURPOSE:To let gas flow to perform the self-cleaning of scale by a method wherein a spiral pipe is installed in a cylindrical vertical container of the titled apparatus to trap mist, etc. from gas, and a liquid spray nozzle is installed in the spiral pipe. CONSTITUTION:Solid and liquid mixed gas is introduced from an inlet pipe 1, its flow rate is increased by a reducer 2, and is passed through the spiral guide pipe 3 to receive centrifugal force. The solid and liquid, while being collected on the inner wall of the pipe 3, guided by gas flow toward the outlet of the pipe 3. During this process, the solid and liquid increase the size by condensation and gathering and cleans the inner wall of the pipe 3. Particles grown to a specific size jump from the outlet of the pipe 3 into the container 4, are settled by gravity and collected in the store section 6. The collected solid and liquid separates into up and down parts by difference in specific gravity and are discharged by pumps 7, 8. Part of liquid is sent as spray liquid through circulation line 10 to the spray nozzle 12.

Driving device for automobile

Abstract: PURPOSE:To facilitate the application of a driving device to a ready-made wheel- driven automobile as well, by placing almost on the center line of the automobile a final speed reducer for front wheels which transmits rotatory power to front wheel drive shafts and by setting a prescribed angle between the axis of the final speed reducer and the center line of the automobile. CONSTITUTION:A propeller shaft 7 for front wheels is connected to a final speed reducer 11 for the front wheels through a joint 10 and to front wheel drive shafts 12a, 12b. The final speed reducer 1 for the front wheels is located almost on the center line of an automobile and a predetermined angle of theta is set between the axis of the speed recucer 11 and the center line C of the automobile so that the front wheel drive shafts 12a, 12b have almost the same length and the adoption of an independent front wheel suspension system is facilitated. Since the predetermined angle of theta is set between the axis of the final speed reducer 11 and the center line C of the automobile, the propeller shaft 7 for the front wheels is connected to the joints without overstrain.

Pipe washing device used together for pollshing pipeeline inlet

Abstract: PURPOSE:To satisfactorily purity and polish the inlet of the pipe-line by spirally feeding in and stirring a polished member with compressed gas. CONSTITUTION:A gas pipe fitting flange 4 is fixed on the gas pipe not shown in the drawing and a pipe fitting flange 3 is communicated to a reducer 10. The thus set pipe washing device body 1 is fixedly attached to the inlet of the desired pipe-line. Then, by injecting an abrasive through a feed-in opening 8 and by feeding-in the compressed gas through a feed-in opening 9, the compressed gas from the feed-in opening 9 is spirally discharged centering at a feed-out opening 6 of the abrasive through each tilting pipe, so that the abrasive fed out of the feed-out opening 6 is supplied to the inlet of the pipe-line in the spiral-shape as shown by arrow. Thus, the inlet of the pipe-line 11 can effectively be polished and purified.

Deterioration reducer for lubricating oil in vehicle engine

Abstract: PURPOSE:To reduce the deterioration of lubricating oil in an engine, by providing a switching valve for partially removing the lubricating oil from the engine and open- close controlling the valve in accordance with the number of revolutions of the engine, distance covered (mileage) or the integration time constant at valve open- close of an exhaust gas return valve. CONSTITUTION:To an oil pan 2 of an engine 1 lubricating oil from a new oil tank 3 is quantitatively fed through a level valve 5. Waste lubricating oil is returned to a fuel tank 11 through an oil drain pipe 6 and switching valve 7 and injected from a fuel injection valve 15 via a filter 13. A revolution sensor 17 feeds the number of revolutions of the engine to an integrating circuit 8. By an engine water temperature switch 26, load switch 27 and car speed switch 28, an exhaust gas recirculation (EGR) valve 21 is closed to feed intefration time constants at an operation of EGR and not EGR to the integrating circuit 8. In this way, deterioration of the engine lubricating oil can be prevented, further the lubricating oil can be automatically replaced when the EGR is operated.

Speed reducing equipment, particularly for vehicles

Abstract: The invention concerns speed reducing equipment for vehicles, comprising an eddy current speed reducer itself comprising four inductor windings, a battery, and control means actuated by a five-position lever. Safety means are provided for automatically preventing the maintenance of the energization of the speed reducer corresponding respectively to positions 4 and 3 after respectively time delays of the order of 20 seconds and 3 minutes and the inductor windings are reinforced so that they may generate a number of ampere-turns greater than that which they are usually capable of producing, which makes it possible to obtain high torques when cold for a speed reducer of given dimensions.

Decompression device for oil pressure brake gear

Abstract: A pressure reducer for hydraulic brake systems comprising a valve formed by the head of a spring-loaded piston and by a sealing ring which is urged by a spring against a step of the housing. Arranged between the spring and the sealing ring is an engaging plate which is carried along by the piston after the piston has travelled an amount smaller than the valve stroke. This results in an exactly defined valve stroke and at the same time results in a quick opening of the valve upon decrease of the inlet pressure.

Mixer for material

Abstract: PURPOSE:To provide a mixer which is constituted of components mounted on a transportatable vehicle, which can be set in a short time, and which has excellent workability without use of electric power source, by forming units of the components necessary for mixing material such as hoppers, a belt feeder for charging material, and a mixer. CONSTITUTION:Materials to be mixed in a prescribed mixing ratio having been charged to two hoppers 1 are fed to screws 4 by belt feeders 3, then the materials are charged to a mixer 5 where they are mixed. The mixed material is carried by a conveyor 6 and is loaded on a truck etc. The driving power source for every parts is a power unit 10 mounted on a frame 7. The motive force is transmitted through a speed reducer 9 to the screws 4, the mixer 5, the conveyor 6, and to a hydraulic pump so as to drive it thereby feeding hydraulic fluid to a hydraulic motor by a control panel 11 in order to drive the belt feeder 3. This mixer for materials is suitable for manufacturing a foundation mixture for sports grounds, horse race courses, baseball grounds and for paving roads.

Rolling method for restricting increase of wall thickness at pipe end in stretch reducer

Abstract: PURPOSE:To eliminate the increase of wall thickness to be caused at the pipe end, by altering the ratio of the rotational frequency of each roll according to a specified pattern. CONSTITUTION:The ratio of the rotational frequency of each roll, at the point that the top of the pipe passes over the final stand, is taken as the basic pattern. When the top of the pipe is bitten by the first stand, the ratio of the rotational frequency of each roll is adjusted to a ratio pattern higher than the basic pattern, and then, the rolling work is started. With the advance of the top of the pipe toward the final stand, the ratio of the rotational frequency of each roll is gradually reduced so as to transform the pattern of ratio of the rotationan frequency of each roll into the basic pattern; under this condition, the rolling work is carried on. After the top of the pipe passes over the final stand, the rolling work is carried on according to the basic pattern until the bottom of the pipe arrives at a specifed stand. After the bottom of the pipe passes over the specified stand, the ratio of the rotational frequency of each roll is gradually increased so as to end the rolling work at a high ratio of the rotational frequency of each roll. Hereby, the phenomenon of the wall thickness increase at the top and bottom of the pipe is restricted.

Measuring method for wheel alignment

Abstract: PURPOSE:To facilitate measurement, by making the tip of an indicating hand three-dimensionally indicate sides of all wheels on a substrate of reduced space and making the measurement by an angle measuring board contacting the tip of the indicating hand. CONSTITUTION:An automobile 1 is set on a floor, and at the same time, fixed base of a reducer 2 is also set onto a fixed position 2 on the floor at the front center of this car 1 with a definite directionality. Detecting tip of the reducer 2 is made to contact three points on outside surface of a wheel H on a front side of the car 1 and also tip of a knuckle spindle S on the center of the wheel H in turn, and in doing so, all the contacting points are three-dimensionally indicated by the respective indicating hands on a substrates of reduced space.

Control device for fuel flow rate

Abstract: PURPOSE:To improve follow-up characteristic of fuel flow rate control, by making such an arrangement that a burner head pressure control region is provided in a region where burner head pressure is capable of operating, and when the burner head pressure entered the pressure control region, correction is done by operating a fuel flow rate adjusting valve at the same pressure. CONSTITUTION:When controlling a fuel flow rate adjusting valve VFC and a pressure adjusting valve VPC, set values for upper limit and lower limit of burner head pressure are calculated by function generators 301 and 302 on the basis of fuel flow rate demand signal (FRD). Thus calculated values are put out to low-value-and- high-value selecting circuits 302 and 304 which put in burner head pressure PBH, and output of the circuit 304 is reduced 305 to the aforementioned pressure PBH. Output of a reducer 305 is added 307 to FRD through a proportionater 306, and then, it is reduced 308 to VFC flow rate signal FVFC and controls the valve VFC in accordance with the output. After VPC, a deviation between a pressure set value PPCR and an actual measurement value PPC is added 312 to FRD, and then, the output is reduced 313 by VPC flow rate signal FVPC, and the valve VPC is controlled in accordance with the output.