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US 11,421,588 B2Granted
Variable compression ratio engine
OwnerSoon Gil Janginventor
Life of this patent
Estimating the term…
Abstract
A variable compression ratio engine is provided, which includes a connecting rod including a small end connected to a piston through a piston pin, and a big end connected to a crankshaft through a crank pin, a gear eccentric sleeve installed on at least one of the piston pin and the crank pin, and at least one rack engaged with a gear formed on an outer circumferential surface of the gear eccentric sleeve at one side thereof.
Claims5
A variable compression ratio engine, comprising:
- a connecting rod including a first end connected to a piston through a piston pin, and a second end connected to a crankshaft through a crank pin;
- a gear eccentric sleeve installed on at least one of the piston pin and the crank pin;
- at least one rack engaged with a gear formed on an outer circumferential surface of the gear eccentric sleeve at one side thereof;
- a rack extension end protruding from one end of the rack;
- and
- at least one block configured to be spaced apart from the rack extension end and configured for adjusting a rotation angle of the gear eccentric sleeve by contacting the rack extension end and moving the rack extension end when the rack is moved as the crankshaft is rotated.
3 more elements
A variable compression ratio engine, comprising:
- a connecting rod including a first end connected to a piston through a piston pin, and a second end connected to a crankshaft through a crank pin;
- a gear eccentric sleeve including a cylindrical eccentric sleeve installed on at least one of the piston pin or the crank pin, and a cylindrical concentric sleeve positioned on both ends or on one end of the eccentric sleeve and including a pinion gear formed on an outer circumferential surface thereof;
- at least one rack engaging with a gear formed on the outer circumferential surface of the gear eccentric sleeve;
- and
- at least one block configured to be spaced apart from one end of the rack and configured for adjusting a rotation angle of the gear eccentric sleeve by contacting the rack and moving the rack.
2 more elements
Dependencies are inferred from the claim text.