Unisia Jecs Corporation

Atsugi Unisia Corp.

Toru Fujie

Takashi Tanaka

Mizuo Otaki

Teruhiko Mochizuki

Shigeyuki Hadama

A traction distributing apparatus for a motor vehicle includes a housing, a propeller shaft arranged on the input side of the housing and driven by an engine, and a differential gear mechanism arranged on the output side of the housing for distributing torque from the propeller shaft to axles. A reversible hydraulic motor is arranged on the output side of the housing to provide relative torque between the axles by pressure oil supplied and discharged from the outside. The hydraulic motor comprises a motor casing rotatably arranged on the output side of the housing and a cylinder block rotatably arranged inside the motor casing for rotating relative thereto by means of pressure oil. The motor casing serves as part of one of the axles.

Traction distributing apparatus for motor vehicle

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.

A pressure switch for operating a device for increasing the engine speed of an automotive vehicle equipped with a power steering system in order to prevent an engine stall when a high load acts on a power steering pump during parking and at a low vehicle cruising speed. The pressure switch is comprised of a movable terminal which is normally separate from a stationary terminal and contactable with the stationary terminal in response to an oil pressure over a predetermined level, in a hydraulic circuit of the power steering system. The movable terminal is slidably fitted in a pit to be filled with oil so that the response of the movable terminal to the oil pressure is lowered, thus providing a hysteresis effect to prevent chattering of the pressure switch.

Growing community of inventors

Kanagawa, Japan

Toru Fujie