Daimler-benz Ag

Mercedes-benz Aktiengesellschaft

Thomas Harr

Horst Bergmann

Emil Bauerle

Wolf-Dietrich Korner

An engine brake arrangement for a multi-cylinder internal combustion engine with at least one throttle valve per cylinder which, during braking operation of the internal combustion engine, is opened at times to connect a cylinder space with an exhaust conduit. To permit simple control of the opening and closing periods of the throttle valves, the latter are actuated by a hydraulic fluid, which is pumped by a pump with a single pressure-increasing and pumping element, and is distributed in a distributor with rotating channels to the individual conduits leading to a particular throttle valve.

Engine brake for a multi-cylinder internal combustion engine

The invention relates to an internal-combustion engine-braking device and comprises a throttle valve actuated by a control piston both of which are arranged in a controlled bore in a cylinder head. To ensure lubrication of the control piston in a simple way, the control bore is equipped with a connecting orifice to the oil return bore leading from the engine rocker-arm space into the crankcase.

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Tiefenbronn, Germany

Thomas Harr