Coupling device
First Claim
Patent Images
1. A device for coupling an input shaft and an output shaft, comprising:
- a carrier coupled to the input shaft;
a pressure chamber;
a rotary pump coupled to said carrier and the output shaft and adapted to increase pressure in said pressure chamber upon relative rotational movement of said carrier and the output shaft and to resist relative rotational movement of said carrier and the output shaft upon the presence of sufficient pressure in said pressure chamber;
a control valve coupled to said pressure chamber and adapted to selectively maintain sufficient pressure in said pressure chamber, thereby urging said rotary pump to resist relative rotational movement of said carrier and the output shaft, and to selectively relieve pressure from said pressure chamber, thereby allowing relative rotational movement of said carrier and the output shaft; and
an electric control unit coupled to said control valve and adapted to control said control valve.
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Accused Products
Abstract
A device for coupling an input shaft and an output shaft is provided. The device includes a carrier coupled to the input shaft, a pressure chamber, and a rotary pump coupled to the carrier in the output shaft. The rotary pump is adapted to increase pressure in the pressure chamber upon relative rotational movement of the carrier and the output shaft and to resist relative rotational movement of the carrier in the output shaft upon the presence of sufficient pressure in the pressure chamber.
81 Citations
15 Claims
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1. A device for coupling an input shaft and an output shaft, comprising:
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a carrier coupled to the input shaft;
a pressure chamber;
a rotary pump coupled to said carrier and the output shaft and adapted to increase pressure in said pressure chamber upon relative rotational movement of said carrier and the output shaft and to resist relative rotational movement of said carrier and the output shaft upon the presence of sufficient pressure in said pressure chamber;
a control valve coupled to said pressure chamber and adapted to selectively maintain sufficient pressure in said pressure chamber, thereby urging said rotary pump to resist relative rotational movement of said carrier and the output shaft, and to selectively relieve pressure from said pressure chamber, thereby allowing relative rotational movement of said carrier and the output shaft; and
an electric control unit coupled to said control valve and adapted to control said control valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for coupling an in put shaft and an output shaft, comprising:
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providing a carrier and coupling the carrier to the input shaft;
providing a pressure chamber;
providing a rotary pump, coupling the rotary pump to the carrier and the output shaft, and adapting the rotary pump to increase pressure in the pressure chamber upon relative rotational movement of the carrier and the output shaft and to resist relative rotational movement of the carrier and the output shaft upon the presence of sufficient pressure in the pressure chamber;
providing a control valve, coupling the control valve to the pressure chamber, and adapting a control valve to selectively maintain sufficient pressure in said pressure chamber, thereby urging said rotary pump to resist relative rotational movement of said carrier and the output shaft, and to selectively relieve pressure from said pressure chamber, thereby allowing relative rotational movement of said carrier and the output shaft; and
providing an electric control unit, coupling the electric control unit to the control valve, and adapting the electric control unit to control the control valve. - View Dependent Claims (14, 15)
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Specification