Valve tappet system, especially anti-rotation bucket tappet having curved cam follower surface

US7146952B2 · kind B2 · utility

Assignee

• Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

• Franz Kreil · Pliening, DE
• Gunter Schroeter · Munich, DE
• Berthold Manke · Garching bei München, DE
• Franz Bonauer · Unterschleißheim, DE

Key dates

• Filing date: Jan 23, 2006
• Grant date: Dec 12, 2006
• Expiry date: Jan 23, 2026

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01L2307/00
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A valve tappet system includes a base body, a lateral section, which forms a guide surface for guiding the base body along an oscillation axis. The anti-rotation element to suppress a rotational or swiveling movement about the oscillation axis. The anti-rotation element has a seat face which sits on the lateral section and a guide body which protrudes beyond the lateral section in the radial direction. Spaced first and second engagement protrusions are provided on the element, and the lateral section is provided with a first and second radial bores assigned to the respective first and second engagement protrusions, which are each engaged in the respective radial bore radially to the oscillation axis.