U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

High efficiency hybrid car with gasoline engine, and electric battery powered motor

Patent 5327987 Issued on July 12, 1994. Estimated Expiration Date: Icon_subject May 26, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Auxiliary power system and apparatus
Patent #: 4031705
Issued on: 06/28/1977
Inventor: Berg

Hybrid powered automobile
Patent #: 4042056
Issued on: 08/16/1977
Inventor: Horwinski

Vehicle having auxiliary drive mechanism
Patent #: 4180138
Issued on: 12/25/1979
Inventor: Shea

Hybrid vehicles
Patent #: 4405029
Issued on: 09/20/1983
Inventor: Hunt

Hybrid electric/ice vehicle drive system
Patent #: 4923025
Issued on: 05/08/1990
Inventor: Ellers

Cooling, heating and power generating device using automobile waste heat
Patent #: 4996845
Issued on: 03/05/1991
Inventor: Kim

Hybrid vehicle Patent #: 5249637
Issued on: 10/05/1993
Inventor: Heidl, et al.

Inventor

Application

No. 887876 filed on 05/26/1992

US Classes:

180/65.2, Combined with nonelectric drive means60/618, Motive fluid is vaporized liquid180/65.4Generating means is driven by a prime mover

Examiners

Primary: Koczo, Michael

Attorney, Agent or Firm

Foreign Patent References

  • 2459886 FR 01/13/1981

International Classes

B60K 006/04
F01K 023/10

Abstract

A hybrid-propulsion car system having one axle driven by an internal combustion engine and another axis driven by an electric motor. The waste heat of the internal combustion engine is absorbed by the engine cooling fluid, and is then heat exchanged with an evaporative fluid in a closed circuit. The evaporative fluid is vaporized by the heat of the engine cooling fluid in order to drive an expander which in turn drives an electric generator. The electric generator supplies current to a storage battery and to the electric motor.

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