Internal-combustion engines – Poppet valve operating mechanism – Tappet
Reexamination Certificate
2005-11-30
2009-11-17
Chang, Ching (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
Tappet
C123S090390, C123S090440, C123S090610, C123S090520
Reexamination Certificate
active
07617807
ABSTRACT:
A multiple cylinder internal combustion engine having a camshaft-driven valvetrain with a camshaft disposed within an engine block includes at least two intake and/or exhaust valves with a pair of valves operated by a common camshaft lobe and a cam follower. The valvetrain may include independently operable mechanical or hydraulic lash adjusters. The cam follower contacts the common camshaft lobe and at least two pushrods with each pushrod having an associated single plane rocker arm which couples to a fulcrum mounted to the cylinder head to actuate the at least two valves.
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Uk Search report in GB0706889.3 dated Jul. 19, 2007.
Beaber Wally
Diggs Matthew
Innes Robert
Brooks & Kushman P.C.
Chang Ching
Ford Global Technologies LLC
Voutyras Julia
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