Engine brake device for a commercial vehicle

US5730102A · kind A · utility

Assignee

• FEV Motorentechnik GmbH & Co. Kommanitgesellschaft · DE

Inventors

• Manfred Arnold · Meckenbeuren, DE
• Michael Schebitz · Attendorn, DE
• Hermann-Josef Ecker · Vettweiß, DE

Key dates

• Filing date: Aug 2, 1996
• Grant date: Mar 24, 1998
• Expiry date: Aug 2, 2016

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02B3/06
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An internal combustion engine includes an intake valve for controlling a cylinder intake port; an exhaust valve for controlling a cylinder exhaust port; first and second valve lifters coupled to the intake and exhaust valves, respectively, for cyclically opening and closing the intake and exhaust valves during normal engine operation; and an actuating device for contacting the exhaust valve and for operating the exhaust valve independently from the second valve lifter. The actuating device has a withdrawn position and a valve-contacting position. In the withdrawn position the actuating device is out of contact with the exhaust valve and in the valve-contacting position the actuating device is in contact with the exhaust valve. There is further provided an electromagnetically-operating setting device having an inoperative position assumed for a normal engine operation and an operative position assumed for an engine-braking operation. The actuating device is coupled to the electromagnetically-operating setting device such that in the inoperative position of the electromagnetically-operating setting device the actuating device is in the withdrawn position and in the operative position…