Atsugi Unisia Corp.

Unisia Jecs Corporation

Nissan Motor Company Limited

Atsugi Motor Parts Company, Limited

Hirofumi Ara

Satoshi Kohno

Tatsuya Morishita

Toshio Harima

Daisuke Shibata

Shoichi Tsuchiya

Masato Ichinose

Shizuaki Hidaka

Koji Yamaguchi

Tsutomi Ischidaka

Isao Ito

A torque transmitting and torsion damping apparatus includes a torsion damper and a friction clutch between a first inertia body and a second inertia body that is supported by said first inertia body for relative rotation. The friction clutch includes a friction plate and a pressure plate that is pressed against the friction disc due to the action of a Belleville spring. The pressure plate has bent-free (straight) projections radially outwardly extending into cutout grooves of the first inertia body. This arrangement allows relative axial movement of the pressure plate to the first inertia body.

Torque transmitting and torsion damping apparatus for use in motor vehicles

A torque transmitting and torsion damping apparatus includes a torsion damper and a friction clutch between a first inertia body and a second inertia body that is supported by said first inertia body for relative rotation. The torsion damper include a drive plate assembly for rotation with the first inertia body, a damper hub for rotation with the second inertia body and spring assembly disposed between the drive plate assembly and the damper hub. At radially inward rivet pins and radially outer projections, the drive plate assembly is fixedly attached to the first inertia body, thereby providing split torque transmission from the first inertia body to the drive plate assembly.

Torque transmitting and torsion damping apparatus with torsion damper

A vibration damper assembly comprises a torsional vibration damper with torsional springs, a mass body, and a resilient drive plate which serves as a bending stress damper. With a bearing on a reinforcement block connected to the crankshaft, the torsional vibration damper has an output member rotatably supported by the crankshaft. The resilient driver plate is operatively disposed in torque transmission relationship between the crankshaft and the mass body in such a manner as to coextend radially outwardly from the crankshaft with the torsional vibration damper.

Vibration damper

There is proposed an assembly for damping vibrations in a torque transmitting arrangement between an engine and an input part of a transmission. The assembly comprises a first flywheel connected to the engine, and a second flywheel connectable to the input part of the transmission. The first and second flywheels are rotatable relative to each other. At least one damper includes spring means operative to resiliently oppose rotation of the flywheels relative to each other. The assembly also comprises at least one lock-up mechanism including centrifugal force responsive means operative to prevent rotation of the flywheels relative to each other after the damper has become idle when rotation of the engine is lower than a predetermined speed value.

Flywheel

A lock-up torque converter for an automatic transmission includes a pump fixedly connected to a crankshaft of the internal combustion engine and a converter cover connected to a converter output shaft during a lock-up condition. A shock absorbing member connects the pump and the converter cover to be elastic in the rotating direction of the converter output shaft. Accordingly, both fluctuations of the engine speed and of the output shaft speed are absorbed by the pump and the converter cover, respectively and therefore the torsional vibrations and the noises generated in the passenger compartment are largely suppressed.

Lock-up torque converter for automatic transmission

A lock-up torque converter for automatic transmissions which transmits the torque of an internal combustion engine from the engine crankshaft to the transmission input shaft is disclosed. The torque converter includes a converter cover, a turbine hub receiving the input shaft to provide a driving connection, a clutch piston slidably mounted on the turbine hub, and a turbine runner having the outer shell drivingly connected to the hub. The torque converter comprises a first torsional damper operably connected between the clutch piston and the turbine hub to provide a driving connection only when the clutch piston engages the converter cover, and a second torsional damper operably connected between the crankshaft and the converter cover to provide a driving connection during operation of the engine. During operation of the lock-up mechanism, the two dampers cooperatively operate in series with each other to provide an optimum damping effect.

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Kanagawa, Japan

Hirofumi Ara