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:
Jan. 17, 2006
Filed:
Mar. 25, 2003
Masaaki Takegami, Osaka, JP;
Kenji Tanimoto, Osaka, JP;
Masaaki Takegami, Osaka, JP;
Kenji Tanimoto, Osaka, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
Disclosed is a refrigerating apparatus using a temperature sensitive expansion valve () as an expansion mechanism. In the refrigerating apparatus, a switching valve () is disposed on the upstream side of an evaporator (). The switching valve () is closed for a while, thereby forcibly placing an outlet side of the evaporator () in the superheat state to increase the valve travel of the expansion valve (). Thereafter, the switching valve () is opened for liquid refrigerant to flow through the evaporator () so that a wettish operation is carried out. As a result of such arrangement, refrigerating machine oil that has accumulated in the evaporator () is reclaimed and returned to a compression mechanism (D).