Robert Boschgmbh

Gerhard Jauch

Kurt Frank

Willi Strohl

Guenter-Paul Ballier

Albert Gerhard

Stephan Kleppner

Rolf Fischerkeller

Ernst Lang

Klaus-Dieter Hufnagel

Steffen Mihatsch

Ulrich Leu

The fuel delivery device (,) has a receptacle (,) arranged in a storage tank (,) and a delivery unit (,) delivering fuel from the receptacle (,) to the internal combustion engine (,) of a motor vehicle. Further, there is provided at least one suction jet pump (,) which delivers fuel from the storage tank (,) into the receptacle (,). The suction jet pump (,) is fastened to an upper edge area (,) of the receptacle (,) as a separate constructional unit. The suction jet pump (,) is formed by a constructional unit having a propelling nozzle (,), a connection (,) for a propelling line (,), which connection (,) opens into the propelling nozzle (,), a mixing pipe (,) following the propelling nozzle (,), and a connection (,) for a suction line (,), which connection (,) opens into the mixing pipe (,). Two walls (,) located at a distance from one another project downward from the constructional unit (,), and the constructional unit (,) is mounted on the edge (,) of the receptacle (,) from the top, wherein the edge (,) of the receptacle (,) is introduced between the two walls (,). The suction line (,) connected to the suction jet pump (,) opens into the storage tank (,) remote of the receptacle (,).

Fuel delivery device

A fuel container for a motor vehicle has at least two supply chambers and a withdrawal chamber, a fuel pump feeding fuel from the withdrawal chamber, a pump circulating device operating in accordance with the principle of a suction jet and circulating fuel from at least one of the supply chambers into the withdrawal chamber, the pump circulating device including a single nozzle through which at least a part of a fuel stream fed by the fuel pump passes through it, and at least two suction pipes arranged one after the other in alignment with one another in a fuel jet produced by the nozzle and having suction inlets which communicate with a respective one of the supply chambers, a last one of the suction pipes having an outlet which faces away from the nozzle and is connected with the withdrawal chamber.

Fuel container

A fuel injection system is proposed which serves to supply fuel to an internal combustion engine. The fuel injection system includes a metering and quantity distributing valve connected with regulating valves, which can be acted upon by the fuel pressure in a differential pressure control line. Communicating with a fuel supply line are a pressure limiting valve and a switch member, the latter having a switch diaphragm which is displaceable into a return flow chamber by the fuel pressure counter to a switch spring and a closing spring. Upon this displacement, via a tappet, a spring plate resting on the switch diaphragm opens a sealing valve, which rests at the mouth of an outflow line, which via a control throttle leads to the differential pressure control line. The pressure limiting valve is located upstream of the sealing valve. The return flow chamber is arranged to communicate with the fuel container via a return flow line.

Fuel injection system

A pressure control valve which serves to control a determined medium pressure. The pressure control valve includes a medium chamber with an inlet opening and an outlet opening for the medium to be controlled, separated by a membrane from a spring chamber with a valve spring. On the membrane, a valve member is floatingly disposed via a ball-shaped support member, which acts together with a valve seat. The outlet opening is disposed upstream of the valve seat in such a manner, that during a medium pressure to be controlled the valve member lies upstream of the outlet opening and together with the latter controls the flow of the medium to the valve seat, while during a medium pressure below the valve member descends with throttling action to a greater or lesser degree into the outlet opening and blocks the valve seat at a predetermined lower medium pressure.

Pressure control valve

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Markgroeningen, Germany

Gerhard Jauch