Kabushiki Kaisha Daikin Seisakusho

Toru Hamada

Hiroshi Takeuchi

Hirotaka Fukushima

Kozo Yamamoto

Yasuyuki Hashimoto

Toshiaki Kikuchi

Tamio Nagao

A flywheel assembly includes a first flywheel having an annular wall on its outer peripheral portion, a seal plate fixed to the outer peripheral portion to form an annular space between the first flywheel and the seal plate, a driven plate arranged to freely rotate relative to the first flywheel within the annular space, an elastic coupling mechanism arranged inside the annular space which elastically connects the first flywheel and the driven plate circumferentially, and a viscous dampening mechanism. The viscous dampening mechanism is formed adjacent to the outer peripheral portion inside the annular space and has a fluid filled chamber. The driven plate includes a plurality of protrusion, each one of the protrusions extending into one of the fluid filled chambers. The viscous portion has a choke formed inside the fluid filled chamber that passes fluid while the first flywheel and driven plate rotate relative to each other.

Flywheel assembly with vibration dampening mechanism

Clutch cover assembly

A flywheel with a dynamic damper which has an elastic member having a rectangular cross sectional shape and made of an elastic material which can dampen all the vibrations transmitted from a crank shaft to the flywheel. The dynamic damper is fixed to an engine side face of the flywheel rigidly fastened to the engine crank shaft, and a weight having a mass corresponding to the mass of the flywheel is floatingly supported through the elastic member so as not to contact with the flywheel.

Flywheel with dynamic damper

A structure for radially positioning a friction member in a damper disc comprises an output hub including a radial flange; a pair of side plates rotatably disposed at opposite sides of the flange; a torsion spring mechanism operable to circumferentially connect the side plates to the flange; and a friction mechanism rotatable fitted around the hub and associated to the side plate for generating a friction force in accordance with relative torsion between the side plates and the flange; the friction mechanism including an annular friction member, of which outer periphery is radially held and guided concentrically to a center of the disc by circumferentially spaced projections formed on the adjacent side plate.

Structure for positioning a friction member in a damper disc

A damper disc has side plates adapted to be connected to a torque input part so as to coaxially rotate therewith. A hub is connected to a torque output part and rotates coaxially to the side plates. A sub-plate is adapted to torsionally turn with respect to the side plates and the hub and is disposed coaxially thereto. A first spring mechanism circumferentially connects the sub-plate to the hub. A second spring mechanism circumferentially connects the side plates to the sub-plate. The spring mechanisms include a plurality of torsion springs disposed in series and spring seat units interposed between the adjacent springs. These spring seat units include a spring seat to which one of the springs is seated, a second spring seat to which another one of these springs is seated and a connecting means for connecting both spring seats together so that both spring seats can change their orientation with respect to the radial direction of the disc.

Growing community of inventors

Takatsuki, Japan

Toru Hamada