Valve guide and process for manufacturing thereof

Details Valve guide and process for manufacturing thereof Valve guide and process for manufacturing thereof

1997-07-09

2000-01-11

Chambers, A. Michael

Valves and valve actuation

Valve

Materials

1231883, F01L 302

Patent

active

060127031

ABSTRACT:
Disclosed is a valve guide which is manufactured by a sintered alloy and used for an engine, and more particularly, to a valve guide which has high wear resistance and can prevent appearance of scuffing on a surface of a valve stem associated with the valve guide, and to a process for manufacturing the valve guide. The valve guide comprises an inner surface sliding with a valve stem, the inner surface finished by machining and exposing pores. Area-ratio of the pores with respect to the inner surface is 2.7 to 10.7%, and at least one pore having pore size of not less than 80 .mu.m exists per 1 mm.sup.2 of the inner surface.

REFERENCES:
patent: 4583502 (1986-04-01), Takahashi et al.
patent: 4632074 (1986-12-01), Takahashi et al.
patent: 4723518 (1988-02-01), Kawasaki et al.
patent: 4936270 (1990-06-01), Ushio et al.
patent: 5257453 (1993-11-01), Neumann et al.
patent: 5792289 (1998-08-01), Morton et al.
patent: 5870989 (1999-02-01), Takahashi et al.

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