Variable compression ratio apparatus

Details Variable compression ratio apparatus Variable compression ratio apparatus

2009-07-06

2011-12-13

Cuff, Michael (Department: 3783)

Internal-combustion engines

Adjustable combustion chamber

Piston in head adjusted

C123S0780AA

Reexamination Certificate

active

08074613

ABSTRACT:
A variable compression ratio apparatus may include a connecting rod rotatably connected to the piston so as to receive the combustion force therefrom, a pin link mounted to the crankshaft and rotatably connected to the connecting rod so as to receive the combustion force from the connecting rod and rotate the crankshaft, a connecting link rotatably coupled to the pin link and changing a rotation trace of the pin link with respect to a rotation axis of the crankshaft, an eccentric camshaft provided with first and second shaft portions eccentric from each other and configured to rotate by a predetermined angle according to a driving condition of the engine, a sub control link rotatably connected to the eccentric camshaft about the first shaft portion and rotatably connected to the connecting link, and a main control link rotatably connected to the eccentric camshaft about the second shaft portion and rotatably connected to the connecting link.

REFERENCES:
patent: 4517931 (1985-05-01), Nelson
patent: 6390035 (2002-05-01), Moteki et al.
patent: 7966980 (2011-06-01), Lee et al.

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