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US 10,513,195 B2Granted
System and method for the improved recovery of kinetic energy
OwnerCharles E. Hugheyinventor
Life of this patent
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Abstract
A dual energy recovery, storage and use system comprising an electrically operated machine capable of regenerative electrical energy recovery, an electrically driven hydraulic regenerative energy recovery system which utilizes regenerative electrical energy to drive an electrically driven hydraulic pump/motor as a pump to pressurize hydraulic fluid in an accumulator, then uses the previously stored pressurized fluid to drive a hydraulic pump/motor as a motor to operate an electric motor/generator as a generator providing electricity to operate/assist in operating an electrically operated machine.
Claims19
A dual kinetic energy recovery system comprising:
- (i) a first electric motor/generator rotationally connected to at least one wheel of a vehicle to function as a kinetic energy input/output component;
- (ii) an electrical energy storage component;
- (iii) an electrically driven hydraulic regen system comprising at least one second electric motor/generator electrically connected to a regen drive controller, at least one hydraulic pump/motor of either a variable or fixed displacement type rotationally connected to said second electric motor/generator, at least one hydraulic fluid control apparatus, at least one low-pressure hydraulic accumulator or reservoir, at least one high-pressure hydraulic accumulator;
- (iv) necessary fluid and electrical connective components and sensors to help control hydraulic fluid rate and flow;
- and (v) a regen drive controller, wherein said controller prioritizes regenerative electrical braking energy from the kinetic energy input/output component to the second electric motor for pressurizing said electrically driven hydraulic regen system based on available hydraulic accumulator volume and pressure capacities, and subsequently directs any remaining electrical regen energy production from deceleration to the electrical energy storage component, capacities permitting.
2 more elements
A method for the dual recovery of kinetic energy comprising:
- (i) a first electric motor/generator rotated via one or more kinetic energy input(s) to generate a regenerative electrical current;
- (ii) transmitting said regenerative electric current to an electrical regen drive controller;
- (iii) prioritizing application of said regenerative electric current from the electrical drive regen controller to a second electric motor/generator;
- (iv) said second electric motor/generator drives rotationally connected fixed or variable displacement hydraulic pump/motor as a pump to direct hydraulic fluid from the low-pressure hydraulic accumulator or reservoir to the high-pressure hydraulic accumulator to facilitate the pressurization of said electrically driven hydraulic energy storage system for a future use;
- and (v) charging said electrical energy storage component after electrically driven hydraulic energy storage system is at capacity.
2 more elements
A dual kinetic energy recovery and drive system comprising:
- (i) a hydraulically driven electric current generation system comprising at least one high-pressure hydraulic accumulator, at least one low-pressure hydraulic accumulator or reservoir, at least one hydraulic fluid control apparatus, at least one hydraulic pump/motor of either a variable or fixed displacement type rotationally connected to at least one second electric motor/generator which is electrically connected to a regen drive controller;
- (ii) necessary fluid and electrical connective components, and sensors to help control hydraulic fluid rate and flow;
- (iii) an electrical energy storage component;
- (iv) a regen drive controller, wherein said controller, upon acceleration demand and the availability of stored high-pressure hydraulic fluid in the high-pressure accumulator, first prioritizes the electrical energy produced by hydraulically driven electric current generation system to the kinetic energy input/output component for acceleration, and subsequently draws any remaining electrical energy demand for additional acceleration and driving requirements from the electrical energy storage component, capacities permitting;
- and (v) a first electric motor/generator rotationally connected to at least one wheel to function as a kinetic energy input/output component.
2 more elements
A method for the use of dual recovered kinetic energy comprising:
- (i) stored high-pressure hydraulic fluid in the high-pressure accumulator, wherein upon an acceleration demand and the availability of said stored high-pressure hydraulic fluid, is routed to a fixed or variable displacement hydraulic pump/motor to rotate said pump/motor as a motor to drive rotationally connected second electric motor/generator;
- (ii) said hydraulic fluid from said fixed or variable displacement hydraulic pump/motor is further routed to the low-pressure accumulator or reservoir for reuse;
- (iii) said hydraulically driven second electric motor/generator rotates as a generator to produce a current of electricity;
- (iv) said current of electricity from said hydraulically driven second electric motor/generator is transmitted to electrically connected regen drive controller;
- (v) said regen drive controller transmits said hydraulically driven second electric motor/generator current to one or more kinetic energy input/output components.
2 more elements
Dependencies are inferred from the claim text.