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, 1995
Filed:
Dec. 07, 1993
Tsutomu Tanaka, Ohta, JP;
Sanyo Electric Co., Ltd., Moriguchi, JP;
Abstract
The present invention aims at providing a refrigerating system capable of cooling a compressor stably using a liquid injection circuit even when defrosting of an evaporator is performed using a gaseous refrigerant of high pressure. The refrigerating system comprises a compressor having a refrigerant discharge side and a refrigerant suction side; a condenser connected to the discharge side of the compressor; a receiver tank connected to a refrigerant outlet side of the condenser; an evaporator connected between a refrigerant outlet side of the receiver tank and the suction side of the compressor; a defrosting circuit which supplies a gaseous refrigerant obtained by gas-liquid separation in the receiver tank to the evaporator to defrost the evaporator; and a liquid injection circuit which supplies a liquid refrigerant obtained by gas-liquid separation in the receiver tank to a low pressure side in the interior of the compressor.