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.
Patent No.:
Date of Patent:
Sep. 30, 2003
Filed:
Oct. 30, 2002
John Joseph Meyer, Northville, MI (US);
Erik Lundberg, Plymouth, MI (US);
Visteon Global Technologies, Inc., Dearborn, MI (US);
Abstract
The invention relates to a refrigeration system for an air conditioner of an automobile, the system having at least a gas cooler, an evaporator, and an expansion valve assembly. The expansion valve assembly is provided with an expansion chamber that is in fluid communication with the gas cooler and the evaporator. A valve defines an opening from the expansion chamber to the outlet conduit and a diaphragm defines another boundary of the expansion chamber. An appendage at least partially located within the expansion chamber. A variable-force mechanism is adapted to cause movement of an appendage coupled thereto, and it is at least partially controlled by an electrical signal. An appendage is moved by the variable-force mechanism, resulting in throttling of the opening.