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. 11, 1995
Filed:
Oct. 28, 1992
Applicant:
Inventors:
Thomas M Zinsmeyer, Pennellville, NY (US);
Vishnu M Sishtla, Cicero, NY (US);
Assignee:
Carrier Corporation, Syracuse, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01M / ;
U.S. Cl.
CPC ...
184-612 ; 184-616 ; 184-623 ; 184-627 ; 184 131 ; 4151221 ;
Abstract
A gear shroud is provided in close surrounding relationship to the drive gear of a centrifugal compressor such that the turbulence within the surrounding gear housing is substantially reduced and the resulting high speed flow of refrigerant is instead directed into an adjacent oil sump. In order to prevent localized churning in the sump and the resulting cavitation at the oil pump as might be caused by the high velocity flow of refrigeration gas from the gear shroud, a baffle is provided over the oil pump to divert the inflow of gas into other areas of the sump.