Motorenfabrik Hatz-gmbh & Co. Kg

Robert Boschgmbh

Motorenfabrik Hatz Gmbh & Co.

Gunter Kampichler

Herbert Geier

Karl Rapp

Heinz Kuschmierz

Bernhard Schenk

Stefan Jager

A pivoting or rotating mounted rocker arm, for a valve train in an internal combustion engine, fitted with a mechanical valve play adjuster element, for the independent setting/adjustment of a first pre-set valve play between rocker arm and valve stem end. The valve play adjuster element comprises a hollow cylinder mounted in the rocker arm in a rotating manner, with planar surfaces (slide patches) formed around the hollow cylinder circumference and a turning spring which turns the slide patches in a predetermined direction. The independent rotation of the slide patches is prevented by contact of the relevant rear surface edge of the planar surface on the valve stem end, so long as a second given valve play is not reached.

Rocker lever for valve operation of an internal combustion engine with device for automatic adjustment/readjustment of valve clearance

In a one-cylinder or multi-cylinder internal combustion engine there is provided in the cylinder cover ( ) a drainage duct ( ), which at one end opens radially inward of the annular gasket in the region of the inner rim of the cylinder liner ( ), and whose outer end is in communication with the intake port ( ) or exhaust port ( ) in the cylinder cover ( ).

Cylinder head gasket

A fuel injection device for diesel engines, with a nozzle holder (1), the pressure channel (2) of which is connected with the fuel injection pump on the one side, with the nozzle on the other side, comprises a nozzle body (3) which is connected with the nozzle holder (1) by means of a nozzle adjusting nut (10). For sealing purposes, there is an intermediate disk (13) between nozzle holder (1) and nozzle body (3). To seal the high-pressure connection in the region of the pressure channels (2, 4), there is a deformable metal sealing body which rests on a sealing surface and is held in a conical seat (19) in the region of the opening of the pressure channel (2) of the nozzle holder (1).

Fuel injection device

Rocker arm for an internal combustion engine

An injection pump for a diesel engine has a pump cylinder with a pump piston slideably mounted therein. The piston has a broadened foot portion. A cam is mounted on the camshaft and a rocker arm is mounted on a pivoting axis and has a camshaft end and a pump-side end. Means are provided for holding the camshaft end of the rocker arm in substantial contact with the cam. The pump-side end of the rocker arm has contact means for contacting the piston and moving the piston in the cylinder as the rocker arm is pivoted. The contact means includes means for loosely coupling the pump-side end of the rocker arm to the foot portion of the piston.

Injection pump for diesel engines

The invention concerns an internal-combustion engine with fuel injection, in particular a single-cylinder diesel engine, in which the fuel-injection pump (3) is connected to the fuel pressure line (23) by a constant-pressure valve assembly comprising a feed valve (28) and a pressure-relief valve (29) mounted with its direction of flow opposite to the feed direction. Both valves (28, 29) are fitted next to each other and off the cylinder axis in a separate valve housing located directly on top of the pump cylinder (5).

Internal combustion engine with fuel injection, particularly, a

Driver for an injection pump

In a fuel injection pump for internal combustion engines, a leakage connection is provided for varying the fuel supply quantity and the supply onset in accordance with rpm. The leakage connection, in a pump piston executing the stroke movement, is effective only at the beginning of the supply stroke of the pump piston and becomes gradually less effective in stages in the middle rpm range. The leakage connection has an outer groove in the pump piston, a blind bore discharging in the piston end face, and at least one throttle bore connecting the blind bore with the bore bottom of the outer groove. The outer groove extends over only a portion of the circumference of the pump piston and parallel to the piston end face at a very small distance therefrom.

Fuel injection pump for internal combustion engines

A method in which a plug-in pump, controlled by oblique edges, is inserted with the aid of an adjusting device into a pump fitting of an internal combustion engine and which without subsequent correction of the supply quantity guarantees an identical supply quantity for all the plug-in pumps of one engine. With a supply quantity adjusting member held firmly in a test position, the plug-in pump is inserted into the test pedestal and rotated until such time as the supply quantity corresponds to the set-point supply quantity, this rotational position marked by a slash mark on the flange of the plug-in pump. With a governor rod, which is part of the engine, locked in the basic test position, a second slash mark is subsequently made on the pump fitting by means of a dummy pump. Once the dummy pump has been removed, the plug-in pump is secured in the pump fitting of the engine with the slash marks in alignment. The governor rod of the engine is embodied in one piece with mating elements, disposed at the spacing of the cylinders, for the coupling elements of the plug-in pumps and is provided with a governor rod locking device.

Method for mounting at least one single-cylinder plug-in fuel injection

A fuel injection pump for internal combustion engines having an equal-pressure relief valve, which has a structure requiring little space when installed and is provided with a fastener element. The equal-pressure relief valve comprises a pressure valve body, onto which a beaker-shaped filler piece protruding into the interior of the pressure valve spring is placed. The structural unit comprising the pressure valve body and the filler piece containing the relief valve is held together, even when the pipe connector fitting or the pressure valve spring is removed, by means of the transit fastener element provided with a fastener ring. The invention is applicable both to single and series fuel injection pumps as well as to distributor injection pumps, particularly when space for installation is restricted.

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Ruhstorf, Germany

Gunter Kampichler