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US 7,731,616 B2Granted
Variable motion control devices for transmission and other implementations and methods of use thereof
AssigneeDifferential Dynamics Corporation
InventorKyung-Soo Han
Life of this patent
Estimating the term…
Abstract
Numerous implementations of variable motion control devices and methods of use thereof. The devices and methods provide variable output to such output devices as vehicles. The variable motion control devices are locatable between output devices and power sources, such as in vehicle transmission applications between the engine and driveline, wherein an output of a power source is input into the device, which, in turn, provides a variable output to the vehicle drive line or other output application.
Claims39
A variable motion control device, comprising:
- an input shaft having an attached input shaft gear;
- a plurality of operatively engaged gear portions, the plurality of operatively engaged gear portions being operatively coupled to the input shaft gear;
- a rotating drum gear, wherein at least one of the plurality of operatively engaged gear portions is mounted to the rotating drum gear, and wherein the rotating drum gear is selectively brakeable such that rotational velocity of the rotating drum gear is correspondingly selectively variable;
- and
- an output shaft operatively coupled with the rotating drum gear, wherein motion of the output shaft varies selectively with selective variation of the rotational velocity of the rotating drum gear,
- wherein the variable motion control device further comprises a variably rotational cam, the variably rotational cam having a rotational motion varying with rotational motion of the input shaft.
3 more elements
A variable motion control device, comprising:
- an input shaft having a variably rotational cam, the variably rotational cam having a rotational motion varying with rotational motion of the input shaft;
- a cam device coupled to the variably rotational cam;
- a sprag device coupled to the cam device;
- a sprag shaft spraggably engaged with the sprag device;
- and
- an output shaft operatively coupled to the sprag shaft,
- wherein the sprag shaft has a first sprag shaft gear, the device further comprising:
- a first rotating drum gear operatively engaged with the first sprag shaft gear, the device further comprising:
- a first rotating drum gear operatively engaged with the first sprag shaft gear, wherein the first rotating drum gear has a first brake disk portion;
- a first variably engageable brake band operatively engaged with the first brake disk portion of the first rotating drum gear;
- and
- a first brake cam;
- wherein the first variably engageable brake band is operatively engaged with the first brake disk portion of the first rotating drum gear via motion of the first brake cam.
10 more elements
A variable motion control device, comprising:
- an input shaft having a variably rotational cam, the variably rotational earn having a rotational motion varying with rotational motion of the input shaft;
- a cam device coupled to the variably rotational cam;
- a sprag device coupled to the cam device;
- a sprag shaft spraggably engaged with the sprag device;
- and
- an output shaft operatively coupled to the sprag shaft,
- wherein the sprag shaft has a first sprag shall gear, the device further comprising:
- a first rotating drum gear operatively engaged with the first sprag shaft gear, wherein the first rotating drum gear is operatively engaged with the first sprag shaft gear via at least one first sleeve gear;
- and
- wherein the first rotating drum gear includes at least one axle, and wherein the at least one first sleeve gear sleevably rotates about the at least one axle of the first rotating drum gear.
7 more elements
A variable motion control device, comprising:
- an input shaft having a variably rotational cam, the variably rotational cam having a rotational motion varying with rotational motion of the input shaft;
- a cam device coupled to the variably rotational cam;
- a sprag device coupled to the cam device;
- a sprag shaft spraggably engaged with the sprag device;
- and
- an output shaft operatively coupled to the sprag shaft,
- wherein the sprag shaft has a first sprag shaft gear, the device further comprising:
- a first rotating drum gear operatively engaged with the first sprag shaft gear, the device further comprising:
- a first rotating drum gear operatively engaged with the first sprag shaft gear;
- wherein the first rotating drum gear is selectively brakeable so as to produce motion of the output shaft in a first rotational direction.
7 more elements
Dependencies are inferred from the claim text.