Camshaft, especially for an internal combustion engine of a...

Details Camshaft, especially for an internal combustion engine of a... Camshaft, especially for an internal combustion engine of a...

2006-07-04

2006-07-04

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Overhead camshaft

C123S090160, C029S888100

Reexamination Certificate

active

07069889

ABSTRACT:
Disclosed is a camshaft, especially for an internal combustion engine of a motor vehicle, comprising at least one cam that is provided with cam segments (2, 3), which can be displaced relative to each other. The aim of invention is to create a compact camshaft structure while obtaining or ensuring good and stable guidance between the cam segments (2, 3) that can be displaced relative to each other. Said aim is achieved by placing the ends of the U-legs of the second cam segment (3), which has the shape of a horseshoe and is movable while the other cam segment (2) is connected in a fixed manner to the camshaft, entirely within the outer contour of the basic camshaft material located between the U-legs in the radially deployed position of the second cam segment (3), said U-legs resulting from the horseshoe shape of said cam segment (3) and extending in a free manner at the ends thereof.

REFERENCES:
patent: 4886022 (1989-12-01), Nakai
patent: 5404770 (1995-04-01), Kruger
patent: 5746166 (1998-05-01), Valasopoulos
patent: 6615468 (2003-09-01), Bloecker et al.
patent: 42 22 477 (1993-02-01), None
patent: 100 30 904 (2002-01-01), None
patent: WO 94/15075 (1994-07-01), None
patent: WO 2004/001199 (2003-06-01), None

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