Internal-combustion engines – Poppet valve operating mechanism – Tappet
Patent
1994-03-16
1996-11-12
Lo, Weilun
Internal-combustion engines
Poppet valve operating mechanism
Tappet
123 9055, 74569, B60K 1700, F01L 116, F01L 124
Patent
active
055729630
ABSTRACT:
A hydraulic tappet includes a cam sliding portion, a skirt portion and a spring holding portion. The structure has an arrangement that the cam sliding portion is made of ceramic and oil is reserved in the spring holding portion. There is provide a hydraulic tappet capable of efficiently using motive power from a crank shaft, reducing transmission loss and improving the efficiency of the engine.
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patent: 4648360 (1987-03-01), Schaeffler
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patent: 4802448 (1989-02-01), Ableitner
patent: 5081976 (1992-01-01), Dahm et al.
patent: 5129372 (1992-07-01), Seiberth et al.
patent: 5320074 (1994-06-01), Schultz et al.
Automobile Technical Handbook pp. 71-72, Mar. 1, 1991.
Kawasaki Keiji
Miwa Shinichi
Kubovcik Ronald J.
Lo Weilun
NGK Insulators Ltd.
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