A device for changing a compression ratio of a cylinder unit of a reciprocating piston combustion engine is provided. An eccentric bushing is rotatably arranged in a receiving bore hole of a bearing eye of a connecting rod (“conrod”). The conrod bearing eye is formed by a conrod upper part and a conrod lower part, and which surrounds a crankpin of a crankshaft. In addition, the eccentric bushing is rotatably guided in the receiving bore hole and can be locked preferably in two positions which are offset from one another by approximately 180° in the circumferential direction of the eccentric bushing. In order to achieve a targeted rotation of the eccentric bushing in the bore hole of the conrod bearing eye between the locking positions, a freewheel is arranged between an outer casing surface of the eccentric bushing and the receiving bore hole of the conrod bearing eye.

A bi-directional overrunning clutch for transmitting torque to drive axle halves includes a clutch housing that attaches to an input gear, and hubs that attach to the axle halves. A pair of roll cages located within the housing adjacent to the hubs have rollers. The rollers wedge between the hubs and first tapered portions on the clutch housing when the roll cage is rotated forward relative to the housing, and between the hubs and second tapered portions on the clutch housing when the roll cage is rotated in the opposite direction. Springs hold the rollers engaged with recesses in the hubs, but let the rollers lift to permit relative rotation of the hubs and roll cages. Relative rotation between the roll cages is limited: when one roll cage is wedged, the other can move only as far as a free position midway between the first and second tapered portions.

A bi-directional overrunning clutch for transmitting torque to drive axle halves includes a clutch housing that attaches to an input gear, and hubs that attach to the axle halves. A pair of roll cages located within the housing adjacent to the hubs have rollers. The rollers wedge between the hubs and first tapered portions on the clutch housing when the roll cage is rotated forward relative to the housing, and between the hubs and second tapered portions on the clutch housing when the roll cage is rotated in the opposite direction. Springs hold the rollers engaged with recesses in the hubs, but let the rollers lift to permit relative rotation of the hubs and roll cages. Relative rotation between the roll cages is limited: when one roll cage is wedged, the other can move only as far as a free position midway between the first and second tapered portions.

A one way clutch with improved cage retention is disclosed. The assembly includes a housing with an opening having a first ramped portion defined on an inner periphery of the opening and a groove. A cage defines a plurality of rolling element pockets, and includes a first rim with a second ramped portion that corresponds to the first ramped portion. The first ramped portion of the housing is aligned with the second ramped portion of the cage during insertion of the cage into the opening of the housing for axial alignment of the second ramped portion and the groove. The cage is then rotated with respect to the housing such that the second ramped portion overlaps the first ramped portion to retain the cage in the housing.

A one way clutch with improved cage retention is disclosed. The assembly includes a housing with an opening having a first ramped portion defined on an inner periphery of the opening and a groove. A cage defines a plurality of rolling element pockets, and includes a first rim with a second ramped portion that corresponds to the first ramped portion. The first ramped portion of the housing is aligned with the second ramped portion of the cage during insertion of the cage into the opening of the housing for axial alignment of the second ramped portion and the groove. The cage is then rotated with respect to the housing such that the second ramped portion overlaps the first ramped portion to retain the cage in the housing.

A bi-directional overrunning clutch differential is configured to transmit power from an input shaft to a first output shaft and a second output shaft in a vehicle. The differential includes a differential housing having a first bearing seat and a second bearing seat. A first bearing is carried by the differential housing in the first bearing seat, and a second bearing is carried by the differential housing in the second bearing seat. A first retaining ring secures the first bearing in the first bearing seat, and a second retaining ring secures the second bearing in the second bearing seat. A first output hub is carried by the first bearing for rotation relative to the differential housing, and a second output hub is carried by the second bearing for rotation relative to the differential housing.

A bi-directional overrunning clutch differential is configured to transmit power from an input shaft to a first output shaft and a second output shaft in a vehicle. The differential includes a differential housing having a first bearing seat and a second bearing seat. A first bearing is carried by the differential housing in the first bearing seat, and a second bearing is carried by the differential housing in the second bearing seat. A first retaining ring secures the first bearing in the first bearing seat, and a second retaining ring secures the second bearing in the second bearing seat. A first output hub is carried by the first bearing for rotation relative to the differential housing, and a second output hub is carried by the second bearing for rotation relative to the differential housing.

A cam phasing system is provided. In some non-limiting examples, the cam phasing system includes a planetary actuator having a first sun gear, a first set of planet gears meshed to and arranged circumferentially around the first sun gear, a first ring gear meshed with the first set of planet gears, and a second sun gear. The second sun gear is rotationally fixed. The planetary actuator further includes a second set of planet gears meshed to and arranged circumferentially around the second sun gear, a second ring gear meshed with the second set of planet gears, and an input shaft rotationally coupled to the first sun gear for rotation therewith. Rotation of the input shaft rotates the first ring gear relative to the second ring gear.

A free-wheel comprising a driving part and a driven part that are able to rotate about an axis of rotation, the free-wheel comprising a cage carrying at least one rolling element arranged in a connection space, the free-wheel having at least one lubrication device conveying a lubricating fluid into the connection space. The free-wheel comprises at least one variable-opening barrier arranged radially between the driving part and the driven part and longitudinally against the connection space, the opening being indexed on a relative position of the cage and of the driving part.

A free-wheel comprising a driving part and a driven part that are able to rotate about an axis of rotation, the free-wheel comprising a cage carrying at least one rolling element arranged in a connection space, the free-wheel having at least one lubrication device conveying a lubricating fluid into the connection space. The free-wheel comprises at least one variable-opening barrier arranged radially between the driving part and the driven part and longitudinally against the connection space, the opening being indexed on a relative position of the cage and of the driving part.