Lash adjuster

Details Lash adjuster Lash adjuster

2007-09-06

2010-10-12

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Tappet

C123S090520, C123S090550

Reexamination Certificate

active

07810461

ABSTRACT:
A return spring is formed using a compression coil spring that is installed so that its axial direction is an up-down direction. The return spring is provided in a high-pressure chamber, and powers a plunger in an upwards direction. A coil diameter of the return spring varies along the axial direction. When the return spring is in a maximally compressed state, an axial direction dimension (up-down direction dimension) is smaller than a dimension that is a thickness of a spring wire multiplied by the number of coil turns. Hence, an overall height of a lash adjuster A can be reduced in comparison to when a return spring with a constant coil diameter over an entire length is used.

REFERENCES:
patent: 3262434 (1966-07-01), Kuchen et al.
patent: 3267918 (1966-08-01), Ayres
patent: 4864982 (1989-09-01), Speil
patent: 5361733 (1994-11-01), Spath et al.
patent: 5398648 (1995-03-01), Spath et al.
patent: 6006710 (1999-12-01), Stephan
patent: 6598572 (2003-07-01), Cecur et al.
patent: 0 608 925 (1994-08-01), None
patent: 1 267 046 (2002-12-01), None
patent: 751705 (1956-07-01), None
patent: 1017793 (1966-01-01), None
patent: 61-066811 (1986-04-01), None
European Search Report dated Mar. 23, 2009 for European Application No. 07 01 7150.

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