Drag lever

US8635979B2 · kind B2 · utility

Assignee

• Schaeffler Technologies AG & Co. KG · DE

Inventors

• Frank Himsel · Herzogenaurach, DE
• Jochen Ott · Simmerath, DE
• Dirk Richter · Boulder, US
• Junichi Ichikawa · Herzogenaurach, DE

Key dates

• Filing date: Aug 2, 2011
• Grant date: Jan 28, 2014
• Expiry date: Feb 12, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/20882
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A drag lever for actuating a gas exchange valve of an internal combustion engine. The drag lever includes an oblong lever body formed of sheet metal material, wherein the lever body has a bottom and side walls integrally formed at an angle of about 90° onto the bottom on both sides. A first end section of the lever body includes a joint socket formed into the bottom between the side walls. The joint socket serves to pivotally moveably support the drag lever on a joint head mounted stationary in the internal combustion engine. A middle section of the lever body is provided with a cam gripping surface, and a second end section of the lever body has a contact surface extending on the bottom. The contact surface serves for actuating the gas exchange valve. The lever body is dimensioned so as to have essentially the same width in a cross section through the joint socket and in a cross section through the middle section. Starting from the first end section of the lever body, the angle of the side walls increases continually to about 90°.