Ceramic adjusting shim

Details Ceramic adjusting shim Ceramic adjusting shim

1993-12-28

1994-12-13

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

Tappet

123 9051, 123 9052, 74569, F01L 116

Patent

active

053720997

ABSTRACT:
The preset invention provides a ceramic adjusting shim capable of minimizing the abrasion of parts contacting the adjusting shim, for example, a cam and a tappet. The ceramic adjusting shim is produced from a ceramic material and has a surface roughness of 0.05 to 0.2 .mu.m in ten-point average roughness Rz.

REFERENCES:
patent: 4366785 (1983-01-01), Goloff et al.
patent: 4508067 (1985-04-01), Fuhrmann
patent: 4909198 (1990-03-01), Shiraya et al.
patent: 5060607 (1991-10-01), Taniguchi

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