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:
May. 17, 2016
Filed:
Feb. 28, 2008
Jin Ming Liu, Conflans Sainte Honorine, FR;
Jin Ming Liu, Conflans Sainte Honorine, FR;
VALEO SYSTEMES THERMIQUES, Le Mesnil Saint Denis, FR;
Abstract
An air conditioning device is used in a motor vehicle. The air conditioning device includes air conditioning circuit, which includes a compressor (), a condenser (), and/or an internal exchanger, an electric expansion valve () which opening ratio is changed according to a control signal, and an evaporator (), which are traversed in this order by a refrigerant fluid and a control unit () capable of controlling a control signal of the expansion valve so as to regulate a control variable relating to the superheating of the evaporator or to the sub-cooling of the condenser () according to a chosen regulation rule.