Valve operating assembly and method of manufacturing

Details Valve operating assembly and method of manufacturing Valve operating assembly and method of manufacturing

2006-07-04

2006-07-04

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Rocker

C123S090160, C123S090440, C074S569000

Reexamination Certificate

active

07069891

ABSTRACT:
The present invention relates to a leakdown plunger, comprising a first plunger opening, a second plunger opening, and an outer plunger surface that is provided with an axis and encloses an inner plunger surface, the first plunger opening is provided with a first annular plunger surface shaped to accommodate a valve insert, the second plunger opening is configured to cooperate with a socket body, the outer plunger surface includes a cylindrical plunger surface and cooperates with an engine workpiece, and the inner plunger surface includes an inner cylindrical plunger surface.

REFERENCES:
patent: 5653651 (1997-08-01), Kawashima et al.
patent: 5979377 (1999-11-01), Barth et al.
patent: 2005/0252473 (2005-11-01), Mandal
Print, Aug. 6, 2001.

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