Unisia Jecs Corporation

Atsugi Unisia Corp.

Teruhiko Mochizuki

Naoto Fukushima

Takashi Tanaka

Miyoko Hamao

Mizuo Otaki

Mizuo Ohtaki

Toru Fujie

Yoshio Okubo

Yoshiki Takai

A traction distribution device includes a hydraulic motor arranged in a differential-gear mechanism for providing relative torque between one of the wheel shafts and a differential casing in accordance with the direction of a hydraulic pressure supplied thereto. A pressure regulating valve is arranged to control the hydraulic pressure supplied to the motor, whereas a selector valve is arranged to switch the direction of the hydraulic pressure supplied to the motor.

Traction distributing devices for motor vehicles

A traction distributing apparatus includes a first block engaged with a motor casing wit its rotation being restricted and having an end face which comes in plane contact with an end face of a cylinder block so as to allow fluid communication between their passages, and a second block engaged with the housing or the motor casing with its rotation being restricted and having an end face which comes in plane contact with an end face of the motor casing or the housing so as to allow fluid communication between their passages. A first biasing mechanism is arranged with the first block to hydraulically bias the first block to the end face of the inner rotor, and a second biasing mechanism is arranged with the second block to hydraulically bias the second block to the end face of the motor casing or the housing.

Traction distributing apparatus for motor vehicle

A variable capacity type vane pump comprising a cam ring, a rotor placed for rotation within the cam ring. The rotor has a number of radial slots, and vances placed for radial inward and outward movement in the receptive slots each having a bottom. A pump chamber is defined between the cam ring and the rotor and it has an inlet and outlet port. The outlet port is connected through a conduit to the bottom of at least one of the slots having vanes moving inwardly in the respective slots. A restriction orifice is placed in the conduit. The cam ring is moved with respect to the rotor to vary the capacity of the vane pump in response to a pressure differential across the restriction orifice.

Variable capacity type vane pump with a variable restriction orifice

A variable discharge pump comprises a plurality of pumping units, each pumping unit including an outlet port discharging a particular volumetric discharge of working fluid, a plurality of outlet passages respectively communicating the outlet ports of each of the pumping units. Each of the outlet passages includes a supply passage provided for supplying the working fluid to a driven apparatus and a reflux passage provided for returning the working fluid to a working fluid reservoir, both being branched from the outlet passage. The variable discharge pump also includes an electromagnetic valve associated with the outlet passages for selectively switching a plurality of flow passages for the working fluid supplied from each of the outlet ports to either the supply passage or the reflux passage so as to provide a plurality of different volumetric discharges by combination of the particular volumetric discharges from each of the outlet ports and includes a plurality of check valves provided in each of the supply passages so as to prevent back-flow of the working fluid.

Growing community of inventors

Kanagawa, Japan

Teruhiko Mochizuki