Kawasaki Motors, Ltd.

Kawasaki Jukogyo Kabushiki Kaisha

Kyohei Izumi

Masaki Nishiyabu

Yuji Hida

Satoaki Ichi

Katsuya Sano

Jun Takagi

Ichiro Tanaka

Masashi Ono

An engine includes a starter motor and a filter, both of which are positioned to a side of a cylinder that faces an exhaust port with respect to a direction that is perpendicular to both a reciprocating direction of a piston and an axial direction of a crankshaft. Moreover, the starter motor is positioned to a side of the cylinder that faces a crankcase, and the filter is positioned to a side of the starter motor that faces a cylinder head, with respect to the reciprocating direction of the piston.

Engine

A vehicle is driven by energy generated from a drive unit supplied with gas fuel, and includes a fuel supply module that includes a fuel tank in which the gas fuel is stored, a regulator that is connected to the fuel tank and adjusts the gas fuel output from the fuel tank to predetermined pressure, a fuel output port through which the gas fuel adjusted by the regulator is output, and a support that supports devices including the fuel tank, the regulator, and the fuel output port, and includes an attachment portion detachably attached to the vehicle while supporting the devices.

Vehicle and fuel supply module

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

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 rotation position detection device includes a change drum, a magnetic field generator, and a magnetic field detector. The magnetic field generator is fixed to the change drum and rotates along with the change drum to differentiate an ambient magnetic field. The magnetic field detector is formed separately from the magnetic field generator and fixed to a position at which a magnetic field changes in response to rotation of the magnetic field generator so as to detect the magnetic field and output a signal that depends on the rotational position of the change drum on the basis of the detection result.

Rotation position detection device for change drum and motorcycle

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.

Growing community of inventors

Kobe, Japan

Kyohei Izumi