Engine brake for a multi-cylinder internal combustion engine

US5168848A · kind A · utility

Assignee

• Mercedes-Benz Group AG · DE

Inventors

• Horst Bergmann · Walldürn, DE
• Emil Bauerle · Eßlingen, DE
• Thomas Harr · Tiefenbronn, DE

Key dates

• Filing date: Nov 29, 1991
• Grant date: Dec 8, 1992
• Expiry date: Nov 29, 2011

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01L9/10
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

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.