A communication system includes a plurality of recipient processors (14, 15, 16) located at geographically remote locations with respect to each other and connected for communication with an information provider processor (12), over the communications network. The provider (12) and recipient processors (14, 15, 16) may comprise respective computers coupled for communication on the Internet or WWW. The provider processor is capable of providing information from any suitable source, by communicating such information over a communications network. However, access to the information by the recipient processors is controlled, based on the geographic location or region of the recipient processors. Each recipient processor is operably associated with a positioning system for providing geographic location information corresponding to the location or region in which the positioning system is located, such as a global positioning system GPS (20, 21, 22). The geographic position information is used to determine whether or not the processor requesting the information is within a restricted or non-restricted region.

System and process for limiting distribution of information on a communication network based on geographic location

A fuel injection system for an internal combustion engine including a fuel injector which can be subjected to fuel at high pressure and is actuatable via a metering valve device by which the pressure in a pressure booster control chamber is controllable such that the pressure in a pressure booster pressure chamber, defined by a pressure booster piston, that can be filled with fuel from the high-pressure fuel source via a filling path in which a check valve is disposed and that is in communication with an injection valve member pressure chamber, is increased by the pressure booster piston such that an injection valve member opens for injecting fuel, whereupon fuel is positively displaced out of a damping chamber via a damping path, in which a damping throttle is disposed. To assure stable injection performance, the damping path is embodied such and connected in such a way to the filling path that the fuel positively displaced from the damping chamber via the damping throttle in an injection event reaches the filling path of the pressure booster pressure chamber via the damping path.

Fuel injection system

Kraftstoffeinspritzventil fur Brennkraftmaschinen mit einem in einem Ventilkorper (1) ausgebildeten auseren Ventilsitz (107), der eine Konusform mit einem auseren Offnungswinkel (a) aufweist und von dem wenigstens eine ausere Einspritzoffnung (10) abgeht. Weiter ist ein innerer Ventilsitz (207) ausgebildet, der ebenfalls eine Konusform mit einem inneren Offnungswinkel (b) aufweist und von dem wenigstens eine innere Einspritzoffnung (12) abgeht. Im Ventilkorper (1) ist eine Ventilhohlnadel (15) angeordnet, die eine ausere Ventildichtflache (30) aufweist, mit der sie mit dem auseren Ventilsitz (107) zusammenwirkt und so die Offnung der wenigstens einen auseren Einspritzoffnung (10) steuert. In der Ventilhohlnadel (15) ist eine Ventilnadel (17) angeordnet, die mit einer inneren Ventildichtflache (32) mit dem inneren Ventilsitz (207) zur Steuerung der wenigstens einen inneren Einspritzoffnungen (12) zusammenwirkt, wobei die Offnungswinkel (a; b) des inneren Ventilsitzes (207) und des auseren Ventilsitzes (107) verschieden sind.

Kraftstoffeinspritzventil für Brennkraftmaschinen

Between a movable core chamber and a fuel supply passage, a needle guide slidably supports a needle fixed to a movable core. The needle guide has a communication hole which fluidly connects the movable core chamber and the fuel supply passage. An opening sectional area of the communication hole is defined in such a manner that a fuel discharged amount decreases as an energization start time of a coil is delayed. In a suction stroke, it is restricted that the movable core and the needle bounce toward the fixed core after the needle biases a suction valve toward a stopper by means of a biasing force of a second spring. A relationship between the energization start time of the coil and the fuel discharged amount is properly maintained, so that the fuel discharged amount of the high-pressure pump can be controlled correctly.

High pressure pump

The invention relates to a fuel-injection valve, in particular a high-pressure injection valve for directly injecting fuel into a combustion chamber of a compressed-mixture, spark-ignition internal combustion engine. Said valve is characterised in that an outlet opening (23) is provided downstream of the valve seat (20), the downstream end of said opening having a slit-forming element (30) that to a great extent closes the outlet opening (23). A slit-type flow outlet (35), through which a fuel spray can be discharged in a fan-type jet, is formed between the slit-forming element (30) and a front face (34) of the valve seat body (16).

Fuel-injection valve

The system has a feeding pump (2) eg electrically controlled fuel pump, sucking fuel from a fuel tank (1) and feeding the sucked fuel to a low pressure region (4) of a high pressure pump (5) ie radial piston pump, through a fuel line (3) The high pressure pump is lubricated and/or cooled by the fuel A metering unit (6) is arranged in the low pressure region for volume control A pressure sensor (7) for pressure control is arranged upstream the high pressure pump The low pressure region is connected with the fuel tank through a return flow pipe (9) An independent claim is also included for a fuel injection system for injecting fuel into a combustion chamber of a combustion engine, comprising a fuel injection valve

Low-pressure system for common rail injection system for injecting fuel into combustion chamber of combustion engine, has pressure sensor arranged upstream high pressure pump, and metering unit arranged in low pressure region of pump

The pump has a pump piston (1) adjustably guided in a pump cylinder head (2) provided on a pump housing (3). A rotary motion of a pump camshaft is changed into a translatory motion of the piston over a polygonal structure (9) for sucking and compressing fuel at high pressure. An insertion part (11) is placed within the range of a hollow-cylindrical tappet body (6). The insertion part is extended with a nose-like projection (12) into a slotted hole-like recess (13) of the tappet body. The insertion part is made of steel.

High pressure fuel pump for operating internal-combustion engine of motor vehicle, has insertion part extended with nose-like projection into slotted hole-like recess of hollow-cylindrical tappet body

A fuel injector having a stroke reversal with a two-stage pressure booster. If the piezoelectric actuator expands, then via a control piston, a pressure p 2 is briefly elevated in a second control chamber and a booster piston is displaced counter to a closing direction, as a result of which the pressure p 2 of the hydraulic fluid in the second control chamber rises again. The booster piston carries an injection valve member along with it produces a first opening motion of the injection valve member. By the motion of the control piston in the closing direction, a pressure p 1 in a first control chamber is briefly reduced. The first control chamber is in communication, via a pressure equalization conduit, with a differential pressure chamber of the injection valve member and the pressure p 3 in the differential pressure chamber also drops, producing a further, hydraulic force further raising the injection valve member.

Fuel Injector That Opens In Two Stages

The high pressure fuel collecting chamber contains a pressure amplifier (6), in the form of a piston, by which a supply pipe (26), fitted on to the nozzle support (23), receives the pressurised fuel. The collecting chamber (1) combines with the pressure amplifier and activated by a control chamber (13).

High pressure collecting chamber, for fuel distribution, consists of pressure amplifier, in the form of a piston integrated into collecting chamber and supply pipe, controlled by control chamber.

Die Erfindung bezieht sich auf einen Kraftstoffinjektor (1) fur ein Hochdruckspeichereinspritzsystem. Ein Druckubersetzer (2) enthalt einen Ubersetzerkolben (20), der uber einen Aktor (5) betatigt wird. Ein Einspritzventilglied (11) ist von einem Dusenraum (10) umschlossen, der mit unter Systemdruck stehendem Kraftstoff beaufschlagt ist. Das Einspritzventilglied (11) ist uber den Druckubersetzer (2) betatigbar. Der Ubersetzerkolben (20) ist auf einem Kolbenteil (23) des Einspritzventilgliedes (11) oder einer Druckstange (35) zentriert.

Friedrich Boecking

Papers

Low-pressure system for common rail injection system for injecting fuel into combustion chamber of combustion engine, has pressure sensor arranged upstream high pressure pump, and metering unit arranged in low pressure region of pump

High pressure fuel pump for operating internal-combustion engine of motor vehicle, has insertion part extended with nose-like projection into slotted hole-like recess of hollow-cylindrical tappet body

Fuel Injector That Opens In Two Stages

High pressure collecting chamber, for fuel distribution, consists of pressure amplifier, in the form of a piston integrated into collecting chamber and supply pipe, controlled by control chamber.

Integrierter hydraulischer Druckübersetzer für Kraftstoffinjektoren an Hochdruckspeichereinspritzsystemen