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Parked automobile thermal control system

  • US 4,909,044 A
  • Filed: 05/08/1989
  • Issued: 03/20/1990
  • Est. Priority Date: 05/08/1989
  • Status: Expired due to Fees
First Claim
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1. In an automobile which comprises a body defining a passenger compartment, window openings and door openings, doors covering the door openings defining window openings in the doors, windows covering the window openings in the body, and an electric storage battery, the improvement where in the automobile further comprises a thermal control system for controlling the temperature inside the body during periods of parking, the thermal control system comprising:

  • (a) insulating means comprising a plurality of insulating means, the insulating means being moveable, respectively, from a position covering the respective windows in the body and the doors to a position revealing said windows to permit vision therethrough from the passenger compartment;

    (b) refrigeration means for cooling the passenger compartment during periods of parking; and

    (c) control means for connecting the refrigeration means to the storage battery for powering and operating the refrigeration means in accordance with predetermined control criteria;

    the insulating means being so constructed and disposed over the windows as to limit the heat flow into and out of the passenger compartment to the exterior of the automobile to no greater than a predetermined rate when the exterior of the car is at temperatures above about 80°

    F. and no greater than about 130°

    F.;

    the refrigeration means being so constructed and designed as to be capable, when connected to the battery means, of introducing refrigeration cooling into the passenger compartment at about said predetermined rate;

    the insulation value of the insulating means, the electrical storage capacity of the storage battery and the coefficient of performance of the refrigeration means being, respectively, such that the refrigeration means is capable of maintaining the temperature in the passenger compartment at a temperature of from about 80°

    F. to about 90°

    F. when the temperature outside the automobile is from above 90°

    F. and up to about 130°

    F. for a period of from about two to about eight hours without using more than about one-half of the electric energy capable of being stored in the battery.

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