Back to results
US 5,415,061 AGranted
Flywheel for power transmission system having equiangularly spaced dashpots
AssigneeAtsugi Unisia Corporation
InventorSatoshi Kohno
Life of this patent
Estimating the term…
Abstract
A flywheel includes an input member secured to a drive shaft, an output member rotatably supported on the input member, and a plurality of dash pots for connecting the input and output members to each other. The dash pots serve to transmit torque from the drive shaft to the output member and to damp torsional vibration transmitted from a drive shaft to the input member.
Claims7
A flywheel comprising:
- an input member rotatable about an axis;
- an output member rotatably supported by said input member;
- said input member having a plurality of mounting portions which are equiangularly spaced about said axis at a fixed distance from said axis;
- said output member having a plurality, corresponding in number to said plurality of mounting portions, of mounting portions which are equiangularly spaced about said axis;
- said plurality of mounting portions of said output member being disposed equidistant on a first circle about said axis, and said plurality of mounting portions of said input member being disposed on a second circle about said axis, which second circle has a smaller radius than said first circle;
- and
- a plurality, corresponding in number of said plurality of mounting portions of said input member, of extensible dashpots which are pivotably connected to said mounting portions of said input member, respectively, and also to said mounting portions of said output member, respectively, each dashpot having a cylinder pivotably connected to one of said plurality of mounting portions of said input member and containing a damping fluid, and a piston rod pivotably connected to a corresponding one of said plurality of mounting portions of said output member which is spaced along the radius of said first circle from said one of said plurality of mounting portions of said input member, said piston rod of each of said plurality of dashpots having a piston slidably received in the corresponding one of said cylinders of said plurality of dashpots, each of said plurality of dashpots extending along the radius of said first circle.
4 more elements
A flywheel for a power transmission system including a drive shaft, the flywheel comprising:
- an input member adapted to be fixed to said drive shaft for rotation therewith about an axis;
- an output member arranged around said input member;
- bearing means disposed between said input and output members for supporting said output member for concentric rotation relative to said input member;
- said input member having a plurality of inner mounting portions which are equiangularly spaced about said axis at a fixed distance from said axis;
- said output member having a plurality, corresponding in number to said plurality of inner mounting portions, of outer mounting portions which are equiangularly spaced about said axis;
- said plurality of outer mounting portions being disposed radially outwardly of said plurality of inner mounting portions, respectively, with respect to said axis;
- and
- a plurality of extensible dashpots which are equiangularly spaced about said axis, each dashpot having a cylinder pivotably connected to one of said plurality of inner mounting portions of said input member and containing a damping fluid, and a piston rod pivotably connected to a corresponding one of said plurality of outer mounting portions of said output member which is disposed radially outwardly of said one of said plurality of dashpots having a piston slidably received in the corresponding one of said cylinders of said plurality of dashpots, each of said plurality of dashpots having a position wherein said dashpot extends along a line orthogonal to said axis and passing a respective one of said plurality of inner mounting portions of said input member.
5 more elements
In a power transmission system including a drive shaft rotatable about a predetermined axis:
- an essentially disc-shaped member having a predetermined mass;
- means for connecting said essentially disc-shaped member to the drive shaft, whereby said essentially disc-shaped member functions as a flywheel;
- said connecting means including an input member fixed to the drive shaft for rotation therewith about the predetermined axis, said input member having a plurality of mounting portions which are equiangularly spaced about said axis at a fixed distance from said axis and a plurality of dashpots, each of said plurality of dashpots being equiangularly spaced about said axis and pivotably connected to said input member and to said essentially disc-shaped member such as to provide an arrangement wherein an angular movement, in any one of two rotational directions, of said essentially disc-shaped member relative to said input member causes extension of all of said plurality of dashpots.
Dependencies are inferred from the claim text.