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:
Feb. 26, 2002
Filed:
Feb. 24, 2000
Applicant:
Inventors:
Yong Huang, Ann Arbor, MI (US);
Vipen K. Khetarpal, Novi, MI (US);
Assignee:
Visteon Global Technologies, Inc., Dearborn, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B 4/302 ;
U.S. Cl.
CPC ...
F25B 4/302 ;
Abstract
A vehicular air conditioning system ( ) includes a compressor ( ) having a crank chamber ( ), a suction chamber ( ), and a discharge chamber ( ). A refrigerant mixture includes carbon dioxide and oil. A conduit ( ) connects the discharge chamber ( ) of the compressor ( ) directly with an oil separator ( ) to route the refrigerant mixture directly to the oil separator ( ). A capillary tube ( ) is connected between the oil separator ( ) and the crank chamber ( ) of the compressor ( ) to cool and throttle oil enroute directly to the crank chamber ( ) of the compressor ( ).