Titanium poppet valve

Details Titanium poppet valve Titanium poppet valve

1988-03-10

1989-08-01

Cross, E. Rollins

Internal-combustion engines

Valve

Valve head cooperates with manifold

123 9051, 251368, 291567, F01L 300

Patent

active

048525316

ABSTRACT:
A poppet valve having a valve stem of titanium alloy strengthened by the inclusion of a compound containing titanium such as TiC, TiB or TiB.sub.2. The valve stem is joined to a valve head formed from a powder of a titanium alloy, preferably of the same composition as the alloy of the stem. The head and the stem are joined by cold compaction followed by vacuum sintering and a high temperature compaction.

REFERENCES:
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patent: 2048166 (1936-07-01), Pilling et al.
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patent: 4004889 (1977-01-01), Gale et al.
patent: 4073474 (1978-02-01), Hashimoto et al.
patent: 4433652 (1984-02-01), Holtzberg et al.
patent: 4606883 (1986-08-01), Wizemann et al.
patent: 4632074 (1986-12-01), Takahashi et al.
patent: 4729546 (1988-03-01), Allison
J. E. Allison et al., "Titanium in Engine Valve Systems", Journal of Metals, Mar. 1987, pp. 15-18.

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