Fluid-pressure and analogous brake systems – Speed-controlled – Regenerative brakes
Reexamination Certificate
2007-01-30
2007-01-30
Nguyen, Xuan Lan (Department: 3683)
Fluid-pressure and analogous brake systems
Speed-controlled
Regenerative brakes
C188S00200R, C188S159000, C180S165000, C180S065510
Reexamination Certificate
active
10125572
ABSTRACT:
A wind-powered brake system which is operated to brake a movable body when a driving force of a driving source for moving the movable body should be decreased, is described. The object of the present invention is to assist normal braking, to reduce a heat energy loss, and to perform braking suitable for a necessary braking force.A wind tunnel34is installed in each armrest16of a wheelchair10. In braking, a load for generating power is put on rotary vanes40provided in the wind tunnel34. Thus, the flow of wind is obstructed, and this functions as a braking force. It is thus possible to brake the wheelchair10using a combination of a brake mechanism of an electric motor and a wind-powered brake system. The burden on the brake mechanism of the electric motor can be lessened, and early wear and performance degradation due to frictional heat can be suppressed. By assisting the brake function of the electric motor, the amount of heat energy released from the electric motor into the air can be reduced. The generated power can be utilized to charge a battery32, and the continuous mileage of the wheelchair10can be increased.
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Cole Thomas W.
Nguyen Xuan Lan
Roberts Mlotkowski & Hobbes
Seiko Epson Corporation
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