U.S. patents available from 1976 to present.
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Propulsion system and kit for hybrid motor vehicle

Patent 5678646 Issued on October 21, 1997. Estimated Expiration Date: Icon_subject December 1, 2015. 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

3570620

Modular dynamoelectric machine
Patent #: 4233532
Issued on: 11/11/1980
Inventor: Esters

Cooling arrangement for an integrated drive-generator system
Patent #: 4284913
Issued on: 08/18/1981
Inventor: Barnhardt

Combined liquid-cooled on-board network generator and heater for mobile vehicles
Patent #: 4500772
Issued on: 02/19/1985
Inventor: Ahner ,   et al.

Hybrid electric propulsion system
Patent #: 5172784
Issued on: 12/22/1992
Inventor: Varela, Jr.

Circuit breaker device for electric vehicle Patent #: 5510658
Issued on: 04/23/1996
Inventor: Nakayama

Inventor

Assignee

Application

No. 566150 filed on 12/01/1995

US Classes:

180/65.1, Electric310/112Plural units, structurally united

Examiners

Primary: Johnson, Brian L.
Assistant: Lerner, Avraham

Attorney, Agent or Firm

Foreign Patent References

  • 0159005 EP. 10/21/1985
  • 0231785 EP. 08/21/1987
  • 0340686 EP. 11/21/1989
  • 0351272 EP. 01/21/1990
  • 3842588 DE. 06/21/1990
  • 4133059 DE. 04/21/1993
  • 4244721 DE. 04/21/1994
  • 4417432 DE. 12/21/1994
  • 2289581 GB. 11/21/1995

International Classes

B60K 001/00
H02K 009/00

Foreign Application Priority Data

1994-12-02 DE

Abstract

A propulsion system for a vehicle comprising an electric motor, circuit breakers which switch field windings of the electric motor, as well as a cooling device which cools the field windings and the circuit breakers by its coolant circuit. The electric motor is realized in the form of a first modular unit which is mechanically functional in itself. The circuit breakers are assembled in at least one second modular unit, which is connected firmly to the first modular unit to form a propulsion unit. The individual modular units can be separated from one another and are connected to one another both by detachable electrical interface connections and also by detachable coolant interface connections. This construction makes it possible to selectively expand the propulsion unit by adding additional modular units, or in the event of the failure or malfunction of individual modular units to replace the modular units without having to replace the entire propulsion unit.

Other References

  • "What kind of gas should we buy tomorrow", BMW Magazine, Mar. 1994, pp. 70-74
  • "Das elektrische Getriebe von Magnet-Motor fur PKW und Omnibusse", VDI Berichte Nr. 878, 1991, pp. 611-622
  • BMW Magazine, Mar. 1994, p. 7
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