Poppet valve with embossed neck structure

Details Poppet valve with embossed neck structure Poppet valve with embossed neck structure

1997-03-04

1998-06-30

Solis, Erick R.

Internal-combustion engines

Valve

Reciprocating valve

1231887, 12318811, F01L 320

Patent

active

057718520

ABSTRACT:
A poppet valve (10) has a disk-shaped head (12), an elongated stem (16), and a tapered neck (24) between the head (12) and the stem (16). The neck (24) has an outer surface (32) with an undulating circumferential contour. The undulating circumferential contour improves component strength and heat transfer efficiency, and may also influence valve rotation and inlet charge swirl.

REFERENCES:
patent: 2218983 (1940-10-01), Daisley
patent: 2221657 (1940-11-01), Taylor
patent: 2367783 (1945-01-01), Kerwin et al.
patent: 2411764 (1946-11-01), Thoren et al.
patent: 2450817 (1948-10-01), Sterling
patent: 3090370 (1963-05-01), Kimball
patent: 4137886 (1979-02-01), Hiramatsu
patent: 5099808 (1992-03-01), Matsuura et al.
patent: 5413073 (1995-05-01), Larson et al.
patent: 5458314 (1995-10-01), Bonesteel
patent: 5485815 (1996-01-01), Shida

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