A pivoting piston machine includes a housing, a first piston and a second piston arranged in the housing, the first and second pistons being pivotable away from one another and toward one another about a pivot axis. The machine has a working chamber arranged between first and second piston. The working chamber increases and decreases in size in alternating fashion during pivoting of the first piston and of the second piston. The machine also has a inlet mouth for admission and discharge of the working medium. A closing element for closing and opening the inlet or the outlet has a valve disk interacting with a valve seat. Either the inlet mouth or the outlet mouth is arranged within the working chamber between the first end surface and the second end surface, and the valve seat and the valve disk are arranged at either the inlet mouth or the outlet mouth.

An embedded-component-type actuator is provided. The actuator includes an output shaft that is rotated, a planetary gear set that forms an overlapping section coaxially with the output shaft, and a motor that is coupled to the overlapping section of the planetary gear set. A sensing controller detects a rotation angle of the output shaft. The output shaft passes an actuator housing and the planetary gear set, the motor, and the sensing controller are arranged in series, thus minimizing a package. Additionally, the actuator is applied as the power source of a CVVD system to improve mountability to a complex engine room due to the space occupancy minimization.

An embedded-component-type actuator is provided. The actuator includes an output shaft that is rotated, a planetary gear set that forms an overlapping section coaxially with the output shaft, and a motor that is coupled to the overlapping section of the planetary gear set. A sensing controller detects a rotation angle of the output shaft. The output shaft passes an actuator housing and the planetary gear set, the motor, and the sensing controller are arranged in series, thus minimizing a package. Additionally, the actuator is applied as the power source of a CVVD system to improve mountability to a complex engine room due to the space occupancy minimization.

The present invention is capable of more smoothly changing a phase of a cam shaft in a rotation direction. A variable valve mechanism changes an opening/closing timing of an intake valve or an exhaust valve in response to an engine rotation speed. The variable valve mechanism includes: a cam sprocket which rotates in response to a rotation of a crank shaft; an intake cam shaft which is integrated with an intake cam and is provided to be rotatable relatively to the cam sprocket; and a link member that transmits a rotation from the cam sprocket to the intake cam shaft. The link member is supported by the cam sprocket to be swingable and swings in response to a change in rotation speed of the cam sprocket to rotate the intake cam shaft relatively to the cam sprocket.

The present invention is capable of more smoothly changing a phase of a cam shaft in a rotation direction. A variable valve mechanism changes an opening/closing timing of an intake valve or an exhaust valve in response to an engine rotation speed. The variable valve mechanism includes: a cam sprocket which rotates in response to a rotation of a crank shaft; an intake cam shaft which is integrated with an intake cam and is provided to be rotatable relatively to the cam sprocket; and a link member that transmits a rotation from the cam sprocket to the intake cam shaft. The link member is supported by the cam sprocket to be swingable and swings in response to a change in rotation speed of the cam sprocket to rotate the intake cam shaft relatively to the cam sprocket.

The present invention can achieve a variable valve mechanism having a simple and compact configuration. A variable valve mechanism changes an opening/closing timing of an intake valve or an exhaust valve in response to an engine rotation speed. The variable valve mechanism includes: a cam sprocket which rotates in response to a rotation of a crank shaft; an intake cam shaft which is integrated with an intake cam; an exhaust cam shaft which is integrated with an exhaust cam; and a governor flange that transmits a rotation of the cam sprocket to the intake cam shaft and the exhaust cam shaft. The intake cam shaft and the exhaust cam shaft are formed so that the other cam shaft is inserted through one cam shaft to be relatively rotatable. The governor flange is provided to rotate along with the intake cam shaft and rotates relative to the cam sprocket under a predetermined condition.

The present invention can achieve a variable valve mechanism having a simple and compact configuration. A variable valve mechanism changes an opening/closing timing of an intake valve or an exhaust valve in response to an engine rotation speed. The variable valve mechanism includes: a cam sprocket which rotates in response to a rotation of a crank shaft; an intake cam shaft which is integrated with an intake cam; an exhaust cam shaft which is integrated with an exhaust cam; and a governor flange that transmits a rotation of the cam sprocket to the intake cam shaft and the exhaust cam shaft. The intake cam shaft and the exhaust cam shaft are formed so that the other cam shaft is inserted through one cam shaft to be relatively rotatable. The governor flange is provided to rotate along with the intake cam shaft and rotates relative to the cam sprocket under a predetermined condition.

A cam phaser is described for selectively engaging in a torque transmitting mode or an angle control mode. In the torque transmitting mode, torque from a camshaft is transmitted to an e-motor, which functions as a generator and provides electrical energy.

A cam phaser is described for selectively engaging in a torque transmitting mode or an angle control mode. In the torque transmitting mode, torque from a camshaft is transmitted to an e-motor, which functions as a generator and provides electrical energy.

An electrically-controlled variable camshaft timing (VCT) system including a sun gear, having an inner axial surface, configured to communicate torque from an output shaft of an electric motor to a gearbox assembly; and a collet sleeve having at least one slot configured to engage the output shaft of the electric motor and a relief section permitting radial-inward compression and an outer axial surface that releasably engages the inner axial surface of the sun gear such that the outer axial surface of the collet sleeve is engaged with the inner axial surface of the sun gear while an amount of torque applied to the sun gear by the output shaft is below a predetermined torque threshold and the sun gear and the collet sleeve are angularly displaced relative to each other when an amount of torque applied to the sun gear by the output shaft is at or above the predetermined torque threshold.