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:
Apr. 26, 2005
Filed:
Oct. 23, 2002
Kenji Tanimoto, Osaka, JP;
Takeo Ueno, Osaka, JP;
Masaaki Takegami, Osaka, JP;
Satoru Sakae, Osaka, JP;
Kenji Tanimoto, Osaka, JP;
Takeo Ueno, Osaka, JP;
Masaaki Takegami, Osaka, JP;
Satoru Sakae, Osaka, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
In a refrigerating apparatus () having application-side heat exchangers () for a plurality of systems for air-conditioning, for cold-storage/freezing and the like and a four-way switch valve (C) and a plurality of check valves () on suction sides of compression mechanisms (D,E) and formed from three compressors (A,B,C) to allow the operation states to be switched, the number of compressors (A,B,C) used at air-conditioning side and cold-storage/freezing side is limited to two at maximum, thereby achieving a simple circuit configuration in which the number of the check valves () to be provided in the suction sides of the compression mechanisms (D,E) is reduced to one or two, suppressing the occurrence of chattering noise in check valves () and, also, preventing an ability from reducing due to a suction-side pressure loss.