An actuator for varying a compression ratio of an engine by varying by the rotary motion of a control shaft coupled to a variable compression ratio device. The actuator comprising: a housing assembly mounted to the engine; a rotor assembly coupled to the control shaft defining at least one vane separating a chamber in the housing assembly into a first chamber and a second chamber, the vane being capable of rotation to shift the relative angular position of the rotor assembly from a first rotational position associated with a first compression ratio to a second rotational position associated with a second compression ratio; and a control valve moveable to a first position in which torsional energy from the control shaft is permitted to rotate the rotor assembly in a direction from the first rotational position toward the second rotational position and to a second position opposite the first position.
申请公布号
WO2012135179(A2)
申请公布日期
2012.10.04
申请号
WO2012US30679
申请日期
2012.03.27
申请人
BORGWARNER INC.;PLUTA, CHRISTOPHER J.;WING, BRAMAN C.;SMITH, FRANKLIN R.
发明人
PLUTA, CHRISTOPHER J.;WING, BRAMAN C.;SMITH, FRANKLIN R.