Variable Compression Ratio Apparatus
AssigneeHyundai Motor Company
InventorsMyung Rae Cho, Hong Wook Lee, Woo Tae Kim, Won Gyu Kim, Jin Woo Cho
Life of this patent
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Abstract
A variable compression ratio apparatus for varying a compression ratio, may include a connecting rod that is connected to a piston to take a combustion force; a pin link, one end of which is eccentrically connected to a crankshaft and the other end of which is pivotally connected to the connecting rod to form a connection portion therebetween; a slot link including a control slot to receive and guide the connection portion along the control slot; and a driving unit coupled to the slot link and configured to move the control slot to control a position of the connection portion.
Claims20
A variable compression ratio apparatus for varying a compression ratio, comprising:
- a connecting rod that is pivotally connected to a piston to take a combustion force;
- a pin link, one end of which is eccentrically connected to a crankshaft and the other end of which is pivotally connected to the connecting rod to form a connection portion therebetween;
- a slot link including a control slot to receive and guide the connection portion along the control slot;
- and
- a driving unit coupled to the slot link and configured to move the control slot to control a position of the connection portion.
A variable compression ratio apparatus that is disposed in a crankcase of an engine to be provided with an explosion force of a mixed gas from a piston so as to rotate a crankshaft and that varies a compression ratio of the mixed gas, comprising:
- a connecting rod of which one end thereof is rotatably connected to the piston;
- a pin link that includes one end connection portion that is rotatably connected to the other end of the connecting rod and a connection portion of the other end that is connected to a point that is eccentric with respect to a rotation center of the crankshaft;
- a slot link of which one side thereof is fixed to the crankcase by a hinge and a control slot is formed to guide the one end connection portion of the connecting rod and the pin link in a length direction thereof;
- and
- a driving unit that is connected to the other side of the slot link to vary a position of the control slot through a hinge structure of the slot link.
A variable compression ratio apparatus that is disposed in a crankcase of an engine to be provided with an explosion force of a mixed gas from a piston so as to rotate a crankshaft and that varies a compression ratio of the mixed gas, comprising:
- a connecting rod of which one end thereof is rotatably connected to the piston inside the crankcase;
- a pin link that includes one end connection portion that is rotatably connected to the other end of the connecting rod and a connection portion of the other end that is connected to a point that is eccentric with respect to a rotation center of the crankshaft;
- a slot link in which a control slot is formed to guide the one end connection portion of the connecting rod and the pin link in a length direction thereof;
- and
- a driving unit that is configured in one side of the crankcase to connect to one side of the slot link such that the slot link can be rotated to vary a position of the control slot.
A variable compression ratio apparatus that is disposed in a crankcase of an engine to be provided with an explosion force of a mixed gas from a piston so as to rotate a crankshaft and varies a compression ratio of the mixed gas, comprising:
- a connecting rod of which one end thereof is rotatably connected to the piston in the crankcase;
- a pin link that includes one end connection portion that is rotatably connected to the other end of the connecting rod and a connection rotation point of the other end that is connected to a point that is eccentric with respect to a rotation center of the crankshaft;
- a slot link of which a control slot is formed to guide the one end connection portion of the connecting rod and the pin link in a length direction thereof;
- and
- a driving unit that is configured at one side and the other side of the crankcase to be respectively connected to one side and the other side of the slot link such that a position of the slot link is changed to vary a position of the control slot.
Dependencies are inferred from the claim text.