The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 02, 2004

Filed:

Jan. 07, 2002
Applicant:
Inventors:

Wayne Oliver Forrest, Gasport, NY (US);

Phillip M. Sokolofsky, Akron, NY (US);

Assignee:

Delphi Technology, Inc., Troy, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 2/900 ; B60H 3/00 ;
U.S. Cl.
CPC ...
F25B 2/900 ; B60H 3/00 ;
Abstract

An improved vehicle heating and air conditioning system includes a driver-manipulated temperature selector that is physically coupled to a discharge temperature control mechanism. The selector is operable in a normal mode in which movement of the selector away from a full cold setting produces a corresponding movement of the temperature control mechanism that increases the discharge air temperature by re-heating or a high fuel efficiency mode in which movement of the temperature selector away from the full cold setting allows the temperature control mechanism to remain in a full cold position for a limited range of selector movement while the discharge air temperature is increased by capacity reduction of the refrigerant compressor. The temperature selector is in the form of a rotary knob that is axially shiftable to change modes when the selector is positioned at the full cold setting and spring-biased so that the normal mode is established as the default mode.


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