Switchable support element for a valve train of an internal combustion engine

US8136495B2 · kind B2 · utility

Assignee

• Schaeffler KG · DE

Inventors

• Joachim Seitz · Frensdorf, DE
• Bodo Rorig · Herzogenaurach, DE

Key dates

• Filing date: Dec 4, 2007
• Grant date: Mar 20, 2012
• Expiry date: Jan 7, 2029

Classification

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

Abstract

A switchable support element (1) for a valve train of an internal combustion engine, said support element (1) comprising a housing (2) that can be arranged through an outer peripheral wall (3) in a reception of the internal combustion engine and in whose bore (4) an axially movable inner element (6) extends, a head (5) of the inner element (6) protruding beyond an edge (7) of the housing (2), coupling elements (8) being associated to the inner element (6) for a selective coupling of the inner element (6) in an axially extended position of the inner element (6) to the housing (2), and said inner element (6) being biased by at least one lost motion spring (9) in a direction leading out of the housing (2), wherein the coupling elements (8) are at least one slide which, in case of uncoupling, is positioned in a guide (10) of the housing (2) extending in radial or secant direction and which comprises a flattened upper side (12) starting from a radially inner front end (11) of the slide, and this flattened upper side (12) can be brought into engagement with a flattened lower side (13) of a recess (14) in the outer peripheral wall (15) of the inner element (6) for effecting coupling.