A crankshaft damper for attachment to one end of a crankshaft of an engine. The crankshaft damper includes an elastomeric member attached to a hub, and an inertia ring connected to the hub through the elastomeric member. Several different structures for cooling the elastomeric member are disclosed that dissipate heat away from the elastomeric member. Air flow is induced near the elastomeric member by providing air flow openings in the inertia ring or the elastomeric member.

A variable compression ratio (VCR) phaser configured to control a compression ratio of an engine having a crankshaft and a control shaft. The variable compress ratio phaser comprises: i) a control shaft gear configured to mesh with a gear on the control shaft of the engine and to receive torque from the control shaft; ii) a crankshaft gear configured to mesh with a gear on the crankshaft of the engine and to deliver torque to the crankshaft; and iii) a torque conversion mechanism configured to receive torque from the control shaft and to convert the torque to a linear force that changes the compression ratio of the engine.

A method for controlling deformation of a large-scale crankshaft comprising detecting and recording stress value(s) of part(s) to be regulated by the crankshaft; fixing the crankshaft on a tool to couple transmitting ends of high-energy acoustic beam transducers with the part(s) to be regulated; turning on the high-energy acoustic beam transducers to emit high-energy acoustic beams into the crankshaft, controlling working frequencies of the high-energy acoustic beam transducers within a range of 10-30 kHz, and setting a predicted regulation and control time according to the stress value(s) of the part(s) to be regulated; and closing the high-energy acoustic beam transducers when the predicted regulation and control time is reached, and taking the crankshaft out of the tool.

There is presented various embodiments disclosed in this application, including an improved crankshaft system using a load connecting member which provides a greater maximum torque angle than a conventional system, thereby improving efficiency and power.

There is presented various embodiments disclosed in this application, including an improved crankshaft system using a load connecting member which provides a greater maximum torque angle than a conventional system, thereby improving efficiency and power.

A crankshaft for a controlled variable compression ratio engine has an axis of rotation defining a longitudinal axis and comprises at least one crank pin, at least one journal connected by a connecting web, and at least one control element able to move translationally along the longitudinal axis in order to cooperate with an actuator of a system for adjusting the length of a connecting rod. The crankshaft is notable in that the control element, positioned at the connecting arm, comprises an annular part coaxial with the crank pin and capable of establishing continuous contact with the actuator of the system for adjusting the length of the connecting rod, regardless of the angular position of the crankshaft. The crankshaft comprises a fluidic control circuit for moving the control element along the longitudinal axis.

A crankshaft for a controlled variable compression ratio engine has an axis of rotation defining a longitudinal axis and comprises at least one crank pin, at least one journal connected by a connecting web, and at least one control element able to move translationally along the longitudinal axis in order to cooperate with an actuator of a system for adjusting the length of a connecting rod. The crankshaft is notable in that the control element, positioned at the connecting arm, comprises an annular part coaxial with the crank pin and capable of establishing continuous contact with the actuator of the system for adjusting the length of the connecting rod, regardless of the angular position of the crankshaft. The crankshaft comprises a fluidic control circuit for moving the control element along the longitudinal axis.

A hybrid opposed piston engine is described that can include a cylindrical chamber and first and second pistons slidably disposed in the cylindrical chamber, surfaces of the first and second pistons and walls of the cylindrical chamber defining an internal combustion volume. The hybrid opposed piston engine can also include at least one port in the cylindrical chamber to allow air and fuel into and exhaust gas out of the internal combustion volume. In some embodiments, the hybrid opposed piston engine includes a drive shaft including a first mechanical linkage between the first piston and a crankshaft that is configured to move the first piston within the cylindrical chamber. In some embodiments, the hybrid opposed piston engine includes an electrical component adjacent to the second piston, the electrical component configured to move the second piston within the cylindrical chamber.

A hybrid opposed piston engine is described that can include a cylindrical chamber and first and second pistons slidably disposed in the cylindrical chamber, surfaces of the first and second pistons and walls of the cylindrical chamber defining an internal combustion volume. The hybrid opposed piston engine can also include at least one port in the cylindrical chamber to allow air and fuel into and exhaust gas out of the internal combustion volume. In some embodiments, the hybrid opposed piston engine includes a drive shaft including a first mechanical linkage between the first piston and a crankshaft that is configured to move the first piston within the cylindrical chamber. In some embodiments, the hybrid opposed piston engine includes an electrical component adjacent to the second piston, the electrical component configured to move the second piston within the cylindrical chamber.

An engine-and-electric-machine assembly, including an engine (8) and an electric machine (9). The crankshaft (7) of the engine has an extension section (7-3) that extends to the exterior of the engine, and the rotor (3) of the electric machine is mounted to the extension section. The present disclosure improves the integration level of the engine-and-electric-machine assembly, and reduces the weight and volume of the engine-and-electric-machine assembly. A vehicle driving device including the engine-and-electric-machine assembly is also disclosed.