Engine valve assembly

Details Engine valve assembly Engine valve assembly

1998-02-20

1999-08-10

Kamen, Noah P.

Internal-combustion engines

Valve

Reciprocating valve

2988843, 2988844, F02N 300

Patent

active

059342382

ABSTRACT:
A valve assembly 10 for use in an engine. The assembly 10 includes a valve 12 including a valve seat face 16. An insert 18 is mounted within the engine for cooperating in sealing engagement with the valve seat face 16. The insert 18 and the valve seat face 16 are each provided with a layer 20, 22 consisting essentially of a nitride for reducing adhesive and abrasive wear between the valve seat face 16 and the insert 18.

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S.L. Narasimhan et al., "Valve Gear Wear And Materials", SAE Technical Paper Series 851497, pp. 1-30, Sep. 1985.
Y.S. Wang et al., "The Effect of Operating Conditions On Heavy Duty Engine Valve Seat Wear", pp. 1-25, Feb. 1996.
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