A hybrid oil pump for a vehicle with an engine. The hybrid oil pump includes an oil pump unit with a pump shaft, a mechanical drive to drive the oil pump unit in a mechanical driving mode, an electrical drive to drive the oil pump unit in an electrical driving mode, a switchable clutch arranged between the motor shaft and the pump shaft, and a freewheel clutch to automatically couple the mechanical drive with the pump shaft when a rotational speed of the mechanical drive is higher than a rotational speed of the electric motor. The oil pump unit pumps pressurized oil to a vehicle component. The mechanical drive is mechanically connected to and driven by the engine. The electrical drive includes an electric motor and a motor shaft. The switchable clutch mechanically disengages the electrical drive from the oil pump unit in the mechanical driving mode.

An engine including a common rail attached to one side portion of a cylinder block that pivotally supports a crankshaft in a rotatable mariner, the one side portion extending along a crankshaft center, and the common rail being configured to supply a fuel to the engine. A flywheel housing that accommodates a flywheel that is rotated integrally with the crankshaft is disposed in one side portion out of opposite side portions of the cylinder block intersecting the one side portion. One end portion of the common rail is disposed above the flywheel housing.

A vibration reduction device (5) including: a counterweight (6) provided to a crankshaft (14) of a Stirling engine (1); and an electric balancer (7) being attached to a crankcase (15) and including a balance weight (73) rotated by an electric motor (74). An inertial force of the counterweight (6) is set to approximately a half of a combined inertial force of pistons (12, 13). Inertial force of balance weightL2=combined inertial force of pistonsL1 is satisfied when a mass of the balance weight is set, where L1 denotes a distance between a vibration reduction target position and a rotation center (O1) of the crankshaft (14), and L2 denotes a distance between the vibration reduction target position and a rotation center (O2) of the balance weight (73).

A device for cleaning a contaminated crankcase gas generated during operation of an internal combustion engine is provided. An internal combustion engine including such a device is also provided. The device permits for an increased flexibility as to constructing the cleaning device while maintaining or possibly improving cleaning of the contaminated crankcase gas.

A device for cleaning a contaminated crankcase gas generated during operation of an internal combustion engine is provided. An internal combustion engine including such a device is also provided. The device permits for an increased flexibility as to constructing the cleaning device while maintaining or possibly improving cleaning of the contaminated crankcase gas.

A manually adjustable aspirator is disclosed for use in a vacuum system for a vehicle having a vacuum source. The aspirator includes a passageway having a diameter that can be adjusted by a vehicle operator for different altitudes. The aspirator includes a body, a passageway having a narrowed aperture defined by opposed cones, and a manually adjustable flow adjuster having an adjustment knob. A brake booster is connected to the aspirator. An air intake is connected with a vacuum source and the aspirator. The cones include first and second cones each having a narrowed end. The narrowed ends are joined at a narrow aperture that defines an inner diameter. The flow rate adjuster regulates the size of the inner diameter. Adjustment of the knob allows operator selection between a high boost in a high altitude location and a low boost in a low altitude location having a higher source vacuum.

A manually adjustable aspirator is disclosed for use in a vacuum system for a vehicle having a vacuum source. The aspirator includes a passageway having a diameter that can be adjusted by a vehicle operator for different altitudes. The aspirator includes a body, a passageway having a narrowed aperture defined by opposed cones, and a manually adjustable flow adjuster having an adjustment knob. A brake booster is connected to the aspirator. An air intake is connected with a vacuum source and the aspirator. The cones include first and second cones each having a narrowed end. The narrowed ends are joined at a narrow aperture that defines an inner diameter. The flow rate adjuster regulates the size of the inner diameter. Adjustment of the knob allows operator selection between a high boost in a high altitude location and a low boost in a low altitude location having a higher source vacuum.

A device for cleaning a contaminated crankcase gas generated during operation of an internal combustion engine is provided. An internal combustion engine including such a device is also provided. The device permits for an increased flexibility as to constructing the cleaning device while maintaining or possibly improving cleaning of the contaminated crankcase gas.

A device for cleaning a contaminated crankcase gas generated during operation of an internal combustion engine is provided. An internal combustion engine including such a device is also provided. The device permits for an increased flexibility as to constructing the cleaning device while maintaining or possibly improving cleaning of the contaminated crankcase gas.

An oil-pressure driving system includes a variable displacement oil-pressure pump, a tilting angle adjuster, an electric motor, and a control device. In the control device, a target assist torque calculating portion calculates a target assist torque, a first torque limiting portion limits the target assist torque to an output value that is a virtual limit value or less, and a drive control portion controls the electric motor such that the electric motor outputs a command torque corresponding to the output value. Further, in the control device, a torque deficiency calculating portion calculates a torque deficiency by subtracting the output value from the target assist torque, a tilting angle calculating portion calculates a tilting angle command value by which the output torque of the oil-pressure pump is reduced by the torque deficiency, and a tilting angle control portion outputs a tilt signal corresponding to the tilting angle command value to the tilting angle adjuster.