Variable tappet

Details Variable tappet Variable tappet

2007-12-28

2010-11-09

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Tappet

C123S090120, C123S090550, C123S090650

Reexamination Certificate

active

07827952

ABSTRACT:
A variable tappet includes a tappet body; a variable portion in the tappet body, configured to open and close a valve; and a control portion to maintain the variable portion in either a first state, at which it can open and close the valve, and a second state, at which it cannot open and close the valve.

REFERENCES:
patent: 6382173 (2002-05-01), Roe
patent: 1999-0059913 (1999-07-01), None
patent: WO 2006002757 (2006-01-01), None

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