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US 2012/0067314 A1Published application
Valve-mechanism-equipped engine
AssigneeHonda Motor Co., Ltd.
InventorsToru Kawai, Yoshikazu Sato, Keita Ito
Life of this patent
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Abstract
A valve-mechanism-equipped engine having increased combustion efficiency is disclosed. The engine includes intake and exhaust rocker arms having a swing center line inclined relative to a rotation center line of a cam, and an intake valve and an exhaust valve inclined relative to a cylinder. A cam surface is inclined relative to the rotation center line of the cam. Slippers of the intake and exhaust rocker arms are in sliding contact with the cam surface.
Claims4
A valve-mechanism-equipped engine comprising:
- an intake rocker arm for opening and closing an intake valve of a combustion chamber;
- an exhaust rocker arm for opening and closing an exhaust valve of the combustion chamber;
- a cam for driving the intake rocker arm and the exhaust rocker arm;
- and
- transmission means for transmitting motive power of a crankshaft to the cam,
- wherein the intake rocker arm and the exhaust rocker arm have a swing center line inclined relative to a rotation center line of the cam, the cam has a cam surface inclined relative to the rotation center line of the cam, the intake rocker arm and the exhaust rocker arm are provided with slippers that are in sliding contact with the cam surface, and the slippers are guided by the cam surface such that the intake rocker arm and the exhaust rocker arm swing about the swing center line.
3 more elements
Dependencies are inferred from the claim text.