Kawasaki Motors, Ltd.

Kawasaki Jukogyo Kabushiki Kaisha

Masaki Nishiyabu

Yuji Hida

Satoaki Ichi

Kyohei Izumi

Tetsuji Yamamoto

Katsuya Sano

Takuya Noami

Teruaki Yamamoto

Tomohiro Kanazawa

Hideyoshi Kosuge

Hirokazu Morita

Masashi Sakata

Jun Tominaga

Hideaki Shinnoki

Ryouji Negi

A hybrid power unit includes: an internal combustion engine; a power transmitting shaft to which power from a crank shaft is transmitted and which is housed in a crank case; an electric motor including a motor driving shaft projecting from a motor housing toward a lateral side, the electric motor being located on an outer surface of the crank case; a linkage which extends through a through hole of the crank case and through which power from the motor driving shaft is transmitted to the power transmitting shaft; and a shaft cover defining a shaft space that houses a portion of the motor driving shaft which projects from the motor housing, the shaft cover being detachably fixed to the outer surface of the crank case so as to cover the through hole.

Hybrid power unit, hybrid straddle vehicle, and case of hybrid power unit

A vehicle includes: a power unit including a transmission that changes the speed of rotation produced by output power of a drive source for travel and a case accommodating the transmission, the transmission including a pivotally supported change shaft, the change shaft being angularly movable about an axis to change a gear ratio of the transmission; and an operation unit that operates to angularly move the change shaft, the operation unit including an electric motor and a power transmission structure that transmits power of the electric motor to the change shaft in the form of rotational power by which the change shaft is angularly moved. The operation unit is mounted on an exterior of the case.

Vehicle

A motor is to be mounted on a vehicle as a drive source. The motor includes a motor shaft extending in an axial direction, a drive gear provided on the motor shaft, a gear shaft extending in the axial direction, a driven gear provided on the gear shaft and coupled to the drive gear, a rotating member, an inner bearing that supports the gear shaft, and an outer bearing that supports the gear shaft. The rotating member is provided on the gear shaft and is configured to be coupled to a power transmission member that transmits power to a wheel of the vehicle. The rotating member is located between the inner bearing and the outer bearing in the axial direction.

Geared motor for vehicle

A power unit includes at least one drive source that outputs rotational power to a drive target other than pumps; a first pump rotationally driven by the rotational power of the drive source; a second pump rotationally driven by the rotational power of the drive source, the second pump being different form the first pump; and a power transmission structure that transmits the rotational power of the drive source to the first and second pumps. The power transmission structure includes transmission components and transmits the rotational power to the first pump through one of the transmission components and to the second pump through another of the transmission components.

Power unit and vehicle including power unit

An engine unit includes a cylinder, a crankshaft, a crankcase, a generator, a sensor, and a coolant passage. The crankshaft is connected to a piston in the cylinder. The crankcase accommodates the crankshaft therein. The generator includes a rotor that rotates together with the crankshaft and a stator facing the rotor. The generator generates electric power by rotation of the rotor. The sensor detects a rotation position of the rotor. The coolant passage includes an ejection port, guides a coolant to the ejection port, and ejects the coolant from the ejection port toward the sensor.

Engine unit

An electric supercharger-equipped moving machine includes: an engine; a supercharger configured to increase intake pressure of the engine; an electric motor including a motor driving shaft; a power transmitting path including a power transmitting shaft through which driving power of the engine is transmitted to a propulsive power generating body; and a switching clutch configured to be able to block power transmission from the electric motor to the power transmitting shaft. The motor driving shaft is connected to the supercharger so as to be able to drive the supercharger when the switching clutch is in a disengaged state. The motor driving shaft is connected to the power transmitting shaft so as to be able to drive the propulsive power generating body when the switching clutch is in an engaged state.

Electric supercharger-equipped moving machine

An oil feed structure includes: a hydraulic clutch; a power transmitting shaft coupled to the hydraulic clutch; a valve element inserted into the power transmitting shaft, and a spring configured to bias the valve element. The valve element includes: a pressure receiving surface facing in an axial direction of the power transmitting shaft and configured to receive hydraulic pressure of a hydraulic pressure oil passage; and a port communicable with a clutch lubrication hole of the power transmitting shaft. The spring biases the valve element toward the hydraulic pressure oil passage against the hydraulic pressure received by the pressure receiving surface. When clutch operating hydraulic pressure changes, the valve element moves in the axial direction to change an opening degree of communication between the port and the clutch lubrication hole.

Oil feed structure including hydraulic clutch

A hybrid vehicle includes: a crankcase having a main chamber formed in a case body and accommodating at least a crankshaft, an input shaft, an output shaft, and a gear train, the crankcase further having a subsidiary chamber formed between the case body and a cover and accommodating at least a main clutch; a rotary member disposed in the subsidiary chamber so as to be capable of power transmission to the input shaft; and a power transmission member that transmits drive power from a drive motor to the rotary member.

Hybrid vehicle

A straddle vehicle includes: a shift drum that makes a shift change of a transmission including a plurality of gear trains; a transmission case enclosing the shift drum, the transmission case including a side wall portion provided with an insertion hole into which an end portion of the shift drum is inserted; and an actuator unit secured to an outer surface of the side wall portion, the actuator unit including a drive shaft that outputs drive power to rotate the shift drum, the drive shaft having the same rotational axis as the shift drum and being connected to the shift drum on the rotational axis.

Transmission mechanism including shift drum and actuator unit which are coaxially disposed

A straddle vehicle includes: a prime mover; a hydraulically actuated main clutch disposed in a power transmission route between the prime mover and a drive wheel; an oil control valve unit that controls flow of a hydraulic oil supplied to the main clutch; and a power unit case including a case body and a cover removably mounted on the case body, the power unit case accommodating at least the main clutch. The oil control valve unit is secured to the case body.

Straddle vehicle

A hybrid vehicle includes: an engine; an electric motor; a transmission; a main clutch; a primary gear configured to transmit rotational power from the engine to the main clutch; a pump including a driven shaft to which rotational power is input from the engine and the electric motor; a first one-way clutch configured to transmit power from the engine to the pump; and a second one-way clutch configured to transmit power from the electric motor to the pump. The first one-way clutch and the second one-way clutch are disposed around the input shaft and located between the primary gear and a gear train of the transmission.

A crankcase includes: a main body portion aligned with a drive motor in a direction perpendicular to a motor drive shaft; and an extended portion continuous with the main body portion and located lateral to a motor housing, the extended portion receiving insertion of one end of the motor drive shaft. A power transmission mechanism that transmits power from the motor drive shaft to an input shaft is located partly in a first region defined by the main body portion and partly in a second region defined by the extended portion and communicating with the first region.

A straddle vehicle includes: a prime mover; a hydraulically actuated main clutch; an oil control valve unit; a power unit case accommodating at least the main clutch; an oil pan mounted beneath the power unit case; a clutch-dedicated pump; a primary filter disposed in an oil passage between the oil pan and the clutch-dedicated pump; and a secondary filter disposed in an oil passage between the clutch-dedicated pump and the oil control valve unit. The primary filter and the secondary filter are mounted on a bottom surface of the power unit case and covered from below by the oil pan.

A hybrid vehicle includes: a crankcase extending from a lower portion of a cylinder of an engine, the crankcase including a main body portion defining a crank chamber in which a crankshaft of the engine is accommodated, the crankcase further including a breather portion projecting upwardly from the main body portion and defining a breather chamber into which blowby gas is introduced from the crank chamber; a breather tube that introduces the blowby gas from the breather chamber into the intake passage; and a drive motor disposed rearwardly of the cylinder and mounted on a top surface of the crankcase. The breather portion has a facing surface facing an outer peripheral surface of the drive motor. The facing surface of the breather portion is shaped to conform to the outer peripheral surface of the drive motor.

A pick-up style utility vehicle according to the present invention has a front seat, a rear seat, and a cargo bed in this order from front, a cabin frame surrounding a riding space, and a screen shield partitioning the cargo bed and a rear riding space in front of the cargo bed. The cargo bed is changeable between an expanded state in which the cargo bed is expanded forward to the rear riding space and a non-expanded state not occupying the rear riding space. All or part of the screen shield is angle shiftable between the expanded state and the non-expanded state.

Growing community of inventors

Akashi, Japan

Masaki Nishiyabu