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US 6,537,175 B1Granted
Power system
OwnerMichael W. Bloodinventor
Life of this patent
Estimating the term…
Abstract
A power system for a vehicle includes a motor, a flywheel and a transmission. Intermediate the motor and flywheel and coupled thereto is a first expansion pulley system with a second expansion pulley system intermediate the flywheel and transmission and coupled thereto. A programmable computer receives information concerning a desired vehicle speed and road level and processes the information so as to vary the motor r.p.m.s in order to reach a desired vehicle speed. The pulley systems effectively transmit the power from the motor through the flywheel and to the transmission at preselected ratios so as to provide for an efficient power delivery and vehicle acceleration. An additional expansion pulley system drives accessories at a constant preselected r.p.m. to preclude the transfer of needless power from the motor to the accessories.
Claims18
A power system for a vehicle comprising:
- an engine including an output drive shaft;
- a first expansion pulley system comprising:
- a first spring tensioned pulley attached to said output drive shaft of said engine;
- a first expansion pulley having an adjustable radius attached to a first end of a downstream flywheel shaft;
- a drive belt extending between said first spring tensioned pulley and said first expansion pulley;
- means for adjusting said radius of said first expansion pulley whereby to vary the r.p.m.s of said downstream flywheel shaft relative to the r.p.m.s of said engine output drive shaft, said adjusting means comprising:
- control unit means for producing control signals corresponding to a desired vehicle speed;
- sensor means for providing information effecting said desired vehicle speed, said information processed by said control unit means for producing said control signals;
- servo means responsive to control unit means for adjusting said radius of said first expansion pulley and said r.p.m.s delivered to said downstream flywheel shaft from said engine output drive shaft;
- a flywheel coupled to said flywheel shaft;
- a second expansion pulley system comprising:
- a second spring tensioned pulley attached to a driven shaft downstream of said flywheel;
- a second expansion pulley having an adjustable radius attached to a second end of said flywheel shaft coupled to said flywheel;
- a drive belt extending between said second spring tensioned and said second expansion pulleys;
- said servo means of said adjusting means further responsive to said control signals from said control unit means for adjusting said radius of said second expansion pulley and the r.p.m.s delivered to said downstream driven shaft relative to said r.p.m.s of said flywheel shaft;
- and
- transmission means coupled to said downstream driven shaft.
14 more elements
A power system for a vehicle comprising:
- a motor including an output drive shaft powered at a selected r.p.m.;
- a transmission responsive to rotation of a driven shaft coupled thereto;
- a flywheel mounted about a flywheel shaft intermediate said motor and said transmission;
- a first expansion pulley system intermediate said motor drive shaft and said flywheel shaft and coupled thereto;
- a second expansion pulley system intermediate said flywheel shaft and said driven shaft of said transmission and coupled thereto;
- means for adjusting the effective radius of a pulley in said first and second expansion pulley systems in response to a selected r.p.m. of said motor drive shaft whereby to continuously adjust the r.p.m.s delivered from said motor drive shaft to said flywheel shaft and the r.p.m.s delivered from said flywheel shaft to said driven shaft of said transmission, said adjusting means including:
- servo means coupled to said pulley systems, said servo means operable to adjust the effective radius of said pulleys in said first and second pulley systems whereby to provide said adjustment of said r.p.m.s.
4 more elements
A power system for a vehicle comprising:
- an engine having an output drive shaft;
- means for regulating a speed of said output drive shaft of the engine;
- control means for producing signals responsive to a desired change in the r.p.m.s of said engine drive shaft;
- first and second servo means responsive to said control means signals;
- a first expansion pulley system connected to said drive shaft, said first system responsive to said first servo means in a manner wherein the effective radius of said first expansion pulley system is regulated by said control means signals delivered thereto;
- a flywheel displaced from said drive shaft and coupled to said first expansion pulley system, said effective radius of said first expansion pulley system regulating the r.p.m.s delivered from said drive shaft to said flywheel;
- a second expansion pulley system coupled to said flywheel, said second system responsive to said second servo means in a manner wherein the effective radius of said second expansion pulley system is regulated by said control means signals delivered thereto;
- means for coupling said second expansion pulley system to a drive shaft of a transmission, whereby the r.p.m.s of the engine drive shaft is regulated for delivery to said flywheel and from said flywheel to said drive shaft of said transmission by said first and second expansion pulley systems.
5 more elements
Dependencies are inferred from the claim text.