Reversible mode vehicle heating and cooling system for vehicles and method therefor

a vehicle heating and cooling system technology, applied in the field of reversed-mode vehicle heating and cooling system, can solve the problems of increasing installation and maintenance costs, reducing the overall efficiency of the system, etc., and achieve the effect of less expensive manufacturing

Inactive Publication Date: 2008-10-30
HIRSCH ARTHUR E +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0015]A further object of the present invention is to provide a heat pump based heating and cooling system that meets present cooling and heating requirements even though such system is less expensive to manufacture.

Problems solved by technology

While this system adequately cools and heats cab compartment, use of the electrical generator increases installation and maintenance costs as well as decreases overall efficiency of the system by first converting the mechanical energy of the diesel engine into the electric energy at the generator and then converting the generated electrical energy into mechanical energy driving the refrigerant compressor for enabling heating or cooling modes.

Method used

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  • Reversible mode vehicle heating and cooling system for vehicles and method therefor
  • Reversible mode vehicle heating and cooling system for vehicles and method therefor
  • Reversible mode vehicle heating and cooling system for vehicles and method therefor

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Embodiment Construction

[0026]Prior to proceeding to the more detailed description of the present invention, it should be noted that, for the sake of clarity and understanding, identical components which have identical functions have been identified with identical reference numerals throughout the several views illustrated in the drawing figures.

[0027]It is to be understood that the definition of an interior space applies nut is not limited to an interior compartment for truck, bus, boat, cabin, camper, and the like vehicles and structures.

[0028]The best mode for carrying out the invention is presented in terms of its presently preferred and alternative embodiment, herein depicted within FIGS. 1 through 8. However, the invention is not limited to the described embodiments, and a person skilled in the art will appreciate that many other embodiments of the invention are possible without deviating from the basic concept of the invention and that any such work around will also fall under scope of this inventio...

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Abstract

A reversible mode heating and cooling system for an interior space of a vehicle having an Auxiliary Power Unit (APU) employs a heat pump arrangement, wherein a refrigerant compressor is driven by APU's diesel engine through pulley and belt arrangement. An air duct is provided to communicate engine exhaust air to an external heat exchanger during a heating mode. Openings and dampers are provided in the air duct to direct engine exhaust air flow to atmosphere and introduce ambient air into the external heat exchanger during cooling mode. Exhausted air from the external heat exchanger may be re-circulated back to the air inlet side of the engine. Provisions are also provided for operating the refrigerant compressor from the electrical power grid.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is related to and claims priority from Provisional Patent Application Ser. No. 60 / 926,153 filed on Apr. 24, 2007.FIELD OF THE INVENTION[0002]The present invention relates, in general, to heating and cooling systems and, more particularly, this invention relates to a reversible mode heating and cooling system for an interior space that employs a heat pump arrangement directly driven by a diesel engine of the Auxiliary Power Unit (APU).BACKGROUND OF THE INVENTION[0003]As is generally well known, the anti-idling laws that prohibit over-the-road truck drivers from running their truck engines while stationary have combined with higher fuel prices to create a high level of interest in Auxiliary Power Units (APU's) for over-the-road long-haul trucks. These APU's are small power plants that are attached to the truck frame and utilize one, two or three cylinder diesel engines often in the nine to fourteen horsepower range. The APU...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F25B27/02F25B30/02F25B29/00
CPCB60H1/00907B60H2001/00949F25B13/00F25B27/02F25B2313/02741Y02A30/274
Inventor HIRSCH, ARTHUR E.HOARD, MARION J.
Owner HIRSCH ARTHUR E
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