Finger lever of a valve train of an internal combustion engine

US6901894B2 · kind B2 · utility

Assignee

• Ina Schaeffler KG · DE

Inventors

• Michael Haas · Weisendorf, DE
• Martin Rauch · Bamberg, DE
• Bodo Rorig · Herzogenaurach, DE
• Dieter Schmidt · Steinhagen, DE
• Jens Artmann · Schwalbach am Taunus, DE

Key dates

• Filing date: May 7, 2004
• Grant date: Jun 7, 2005
• Expiry date: May 7, 2024

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01L2820/031
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A finger lever (1) of a valve train of an internal combustion engine, said finger lever (1) being switchable to different valve lifts for at least one gas exchange valve and comprising an outer lever (2) having two arms (3a, 3b) between which an inner lever (4) is arranged for pivoting relative to the outer lever (2), which outer and inner levers (2, 4) can be coupled to each other by a coupling means (15), the outer lever (2) comprising on one closed end (5), a support (5a) for a gas exchange valve and the finger lever (1) comprising on an opposite end (6), a complementary surface (7, 30) for a support element, the inner lever (4) having a fulcrum (10) in a region of the opposite end (6), and at least this inner lever (4) comprising a contact surface (11) for a cam whereby in the finger lever (1), the outer lever (2) has a substantially open fork-like configuration, the contact surface (11) for the cam on the inner lever (4) is configured as a rotatable roller (12) and the coupling means (15) comprises at least one slide (16, 19, 22) that extends crosswise to a longitudinal direction of the finger lever (1), an axial line of the at least one slide (16, 19, 22) coincides with an ax…