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. 13, 2008
Filed:
Dec. 06, 2006
Kenichi Suzuki, Takasaki, JP;
Masato Tsuboi, Isesaki, JP;
Yuuichi Matsumoto, Isesaki, JP;
Sanden Corporation, Gunma, JP;
Abstract
A vapor compression refrigerating system having a compressor, a radiator, a first pressure reducing mechanism for reducing a pressure of refrigerant cooled by the radiator, a refrigerant branching means for dividing refrigerant (m) reduced in pressure by the first pressure-reducing mechanism into portions, a second pressure reducing mechanism for reducing a pressure of one portion of refrigerant (m), and a third pressure reducing mechanism for reducing a pressure of another portion of refrigerant (m). One portion and pressure reduced refrigerant (m') exchanges heat in a cooler with refrigerant present between the first and third pressure reducing mechanisms, and another portion and pressure reduced refrigerant (m′) is evaporated by an evaporator. The evaporated refrigerant (m″) and the refrigerant (m′) having passed through the cooler are mixed by a gas/liquid separator, and the mixed refrigerant is introduced into the compressor. In a vapor compression refrigerating system using carbon dioxide, the degree of refrigerant superheating at a suction side of the compressor may be reduced, and a coefficient of performance of the refrigerating cycle may be increased.