Variable displacement and/or variable compression ratio engine

Details Variable displacement and/or variable compression ratio engine Variable displacement and/or variable compression ratio engine

2007-12-20

2009-08-25

Kamen, Noah (Department: 3741)

Internal-combustion engines

Adjustable combustion chamber

Piston in head adjusted

C123S0780BA

Reexamination Certificate

active

07578266

ABSTRACT:
The present invention relates to an internal-combustion engine comprising at least one cylinder (10) in which a piston (14) slides between a top dead center (TDC) and a bottom dead center (BDC) under the action of a connecting rod (20) of axis XX and a crankshaft (38) controlling the displacement of the piston under the effect of an articulated linking system (26) allowing variation of the engine displacement and/or compression ratio. The articulated linking system comprises a shift lever (26) mounted to pivot around an articulation axle (46) and is displaceable in translation in at least one direction by displacement control means (52, 52V). The shift lever comprises a porthole (44) within which the axle is housed and is connected by one (24) of its ends to the connecting rod and by the other (28) end to a link (32) connected to the crankshaft. Shift lever (26) comprises a slider (78) carrying articulation axle (46) and cooperating with opening (44) of the lever.

REFERENCES:
patent: 680237 (1901-08-01), Eudelin
patent: 926564 (1909-06-01), Hollopeter
patent: 4917066 (1990-04-01), Freudenstein et al.
patent: 5163386 (1992-11-01), Schechter
patent: 0 248 655 (1987-12-01), None
patent: 228706 (1923-11-01), None
patent: 2 312 242 (1997-10-01), None

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