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 invention relates to a fuel injector for injecting fuel in the combustion chamber of a combustion engine. Said injector comprises a body (2) having a body bore (8) in which a first 3/2 control valve (6) is located, said valve body (7) comprising a sliding part (18) and having a seat diameter (11). The valve body (7) of said 3/2 control valve (6) is driven by an actuator (40) directly or indirectly through translation elements (3, 4). A valve member (30) of another control valve (29) is forcibly driven by means of the valve body (7) of said 3/2 control valve (6) through a transmission element (26). When the valve body (7) is in a first position inside the body bore (8), the transmission element (26) is located at a distance h1 (25) from said valve body (7).

Fuel injector having control valve members connected in series

Control valve for injector in fuel injection system for IC engine with pressure amplification in control chamber

The invention relates to a fuel injector for injecting fuel into the combustion chamber of an internal combustion engine, comprising a nozzle needle (3) Said nozzle needle can move inside the injector body (1) between a position that opens injection openings and one that closes the injection openings by means of pressure build-up/pressure reduction inside the control space (2) The control space (2), on the overflow oil-side, can be pressurized via a pressure relief line (6) containing a discharge throttling element (7) and via a high pressure-side inlet (8) provided with an inlet throttle (9), which simultaneously subjects a nozzle space (15) inside the injector body (1) to the action of fuel The change in pressure inside the control space (2) of the injector body (1) ensues via a first on-off valve (21) and via another on-off valve (27), whereby the first on-off valve (21) has a pre-travel (33) in the direction of switching through (32)

Fuel injector having two-way valve control

The invention relates to a fuel injector (10) comprising an injector body (12) and a fuel inlet (30). The fuel injector (10) is connected to a high-pressure fuel source (80) outside the injector body (12) and is provided with an actuator (14). Said actuator (14) is accommodated in a hollow space (84) from which a high-pressure inlet (30) extends to an injection valve member (46). Fuel is injected into a combustion chamber of an internal combustion engine in accordance with the pressure prevailing in the first hydraulic chamber (24) when the injection valve member (46) is lifted from a seat (64). The actuator (14) directly impinges a piston (20) which is embodied in a staggered manner, delimits the first hydraulic chamber (24), and actuates a control piston (36). The injection valve member (46) is guided within the control piston (36).

Fuel injector comprising a directly triggered injection valve member

Die Erfindung betrifft einen hydraulischen Koppler fur ein Kraftstoffeinspritzventil, mit einem Ubersetzerkolben (6), der mit einem Aktor (4), insbesondere einem Piezoaktor, koppelbar ist, und mit einem weiteren Ubersetzerkolben (7), der mit einer Dusennadel koppelbar ist, wobei zwischen den beiden Ubersetzerkolben (6, 7) eine Lebensdauerbefullung eines Hydraulikmediums angeordnet ist, um die beiden Ubersetzerkolben hydraulisch miteinander zu koppeln. Um einen Koppler zu schaffen, der einfach aufgebaut und kostengunstig herstellbar ist, ist ein Ende eines der Ubersetzerkolben (7) in einem Ende des anderen Ubersetzerkolben (6) gefuhrt. Auserdem steht ein zwischen. der Stirnseite (12) des einen Ubersetzerkolbens (7) und dem anderen Ubersetzerkolben (6) ausgebildeter Ubersetzerraum (14) mit einem zusatzlichen Aufnahmeraum (15) fur Hydraulikmedium in Verbindung, der durch ein Feder-Dichtelement (17) abgedichtet ist.

Friedrich Boecking

Papers

Fuel injector having control valve members connected in series

Control valve for injector in fuel injection system for IC engine with pressure amplification in control chamber

Fuel injector having two-way valve control

Fuel injector comprising a directly triggered injection valve member

Hydraulischer koppler und kraftstoffeinspritzventil