Exedy Corporation

Kabushiki Kaisha Daikin Seisakusho

Aisin Seiki Kabushiki Kaisha

Hiroyoshi Tsuruta

Hirotaka Fukushima

Hiroshi Uehara

Koji Kajitani

Masanobu Fukamachi

Kozo Yamamoto

Masaru Ebata

Masakazu Kamiya

A damper mechanism () includes a first flywheel (), an intermediate rotating body () arranged to be rotatable with respect to the first flywheel (), a second flywheel () arranged to be rotatable with respect to the intermediate rotating body (), a first damper () having a plurality of first coil springs () elastically coupling the first flywheel () and the intermediate rotating body () in a rotation direction, and a second damper () elastically coupling the intermediate rotating body () and the second flywheel () in the rotation direction and that begins operating at a torque that is lower than the minimum operating torque of the first damper (). The first coil springs () are accommodated between the first flywheel () and the second flywheel () in a state of having been compressed in the rotation direction.

Damper mechanism

A double mass flywheel has an inertia member, a flexible plate, a second flywheel, an elastic member, and a friction generation mechanism. The flexible plate is deformable in a bending direction and connects the inertia member to a crankshaft. The second flywheel is formed with a clutch friction surface. The elastic member elastically connects the second flywheel to the crankshaft in the rotational direction. The friction generation mechanism is located functionally in parallel with the elastic member in the rotational direction. The friction generation mechanism is held by the flexible plate.

Double mass flywheel

A flywheel assembly with an improved bearing structure is provided. The flywheel damper () is a flywheel assembly for transmitting torque from the crankshaft of an engine, and has a first flywheel assembly (), a second flywheel assembly (), a damper mechanism (), and a needle bearing (). The first flywheel assembly () is fixed to the crankshaft (). The second flywheel assembly () is disposed so as to be able to rotate relative to the first flywheel assembly (). The damper mechanism () elastically connects the second flywheel assembly () to the crankshaft () in the rotation direction. The needle bearing () is a bearing to support rotatably the second flywheel assembly () on the crankshaft (), and has a plurality of needles () disposed between the peripheral surfaces () and () of both members.

Dual-mass flywheel

A flywheel assembly that receives torque from a crankshaft of an engine includes a flywheel, a damper mechanism, and a frictional resistance generation mechanism. The damper mechanism elastically connects the flywheel to the crankshaft in a rotational direction. The damper mechanism includes an input member, an output member, elastic members to connect elastically the input member and the output member in the rotational direction. The frictional resistance generation mechanism is located functionally in parallel with the damper mechanism in the rotational direction. The frictional resistance generation mechanism utilizes a portion of the flywheel as a friction surface.

Flywheel assembly

A friction resistance generation mechanism is disposed between two relatively rotatable members of a rotating mechanism. The mechanism includes an input side disk-like plateoutput side disk-like platesand, friction shimsA,B, andC aligned and disposed in a direction of rotation. A plurality of elastic members is disposed among the friction shims in the direction of rotation.

Frictional resistance generation mechanism

A flywheel assembly that transmits torque from a crankshaft of an engine is provided. The flywheel assembly has a flywheel with a friction surface and an elastic coupling mechanism. The elastic coupling mechanism elastically couples the flywheel and the crankshaft in a rotating direction, and has a pair of first disk-shaped members axially spaced from each other and fixed together, a second disk-shaped member that is arranged between the pair of first disk-shaped members, and an elastic member that elastically couples the first disk-shaped members to the second disk-shaped member in the rotating direction. Further, a plate-like coupling portion extending between outer peripheries of the paired first disk-shaped members fixes the pair of first disk-shaped members together.

A friction resistance generation mechanism is disposed between two relatively rotatable members of a rotating mechanism. The mechanism includes an input side disk-like plate, output side disk-like platesand, first friction shimsA, and second friction shimsB. The first friction shimsA are frictionally engaged with the platesand, and engaged in a manner that allows torque to be transmitted by way of a first rotational direction gapA to the plate. The second friction shimsB are frictionally engaged with the platesand, and engaged in a manner that allows torque to be transmitted to the plateby way of a second rotational direction gapB with a different size than the first rotational direction gapA.

A flywheel assembly comprises a flywheel having a friction surface, a flexible plate, and a stopper plate serving as a stopper mechanism. The above-described flexible plate is flexible in the bending direction and rigid in the rotational direction, and has a radially outer portion fixed to the flywheel and a radially inner portion fixable to an end of a crankshaft of an engine. The stopper plate is for restraining bending deflection of the flexible plate when it exceeds a predetermined amount.

Flywheel assembly with annular elastic body for reducing vibrations

A power coupling mechanism includes a flexible disk-like plate, a ring element, first and second input plates and a driven plate. The ring element is coupled to an outer radial portion of the flexible plate. The input plates are formed of deformed sheet metal material to at least partially define a viscous fluid filled chamber that encloses a dampening mechanism. The input plates are fixed to the ring element and the flexible plate such that center and inner radial portions of the flexible plate are axially spaced from the input plates to permit axial flexing. The driven plate at least partially extends into an annular housing of the dampening mechanism and has grooves interfitting with protrusions of the annular housing to provide structural support against thrust and radial forces. An inertia element with a ring gear is preferably connected to the driven plate.

Power transfer apparatus having a vibration dampening mechanism which provides structural support for the apparatus

A power coupling mechanism having fluid dampening device with interfitting members which assist in the absorption and transmittance of stress due to torsion and thrust loads, thus reducing the size of a bearing supporting relatively rotatable parts.

Growing community of inventors

Kadoma, Japan

Hiroyoshi Tsuruta