Engine brake of an internal combustion engine

US4836162A · kind A · utility

Assignee

• Avl Gesellschaft fur Verbrennungskraftmaschinen und Messtechnik m.b.H. Prof.Dr.Dr.h.c. Hans List · AT

Inventors

• Helmut Melde-Tuczai · Graz, AT
• Johann Aigner · Neufahrn, DE
• Othmar Skatsche · Graz, AT

Key dates

• Filing date: Oct 28, 1987
• Grant date: Jun 6, 1989
• Expiry date: Oct 28, 2007

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01L13/06
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An engine brake in an internal combustion engine for use in motor vehicles, comprising an exhaust valve controlled by a cam via a follower lever, and a device for leaving the exhaust valve slightly open during the combustion stroke. According to the invention the support bearing of the follower lever is designed to be adjustable in the direction of the supporting force P between two extreme positions, i.e. one corresponding to normal operation and the other one to braking, such that on braking the exhaust valve is lifted by 0.3 to 3 mm, preferably 0.5 to 2 mm, during the phase in which the base circle of the cam is in contact with the follower lever.