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:
Jul. 26, 1988
Filed:
Apr. 06, 1987
Applicant:
Inventor:
Harry S Nissen, Sonderborg, DK;
Assignee:
Danfoss A/S, Nordborg, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C / ; F04C / ;
U.S. Cl.
CPC ...
418 63 ; 418 88 ; 418 94 ; 418 98 ;
Abstract
The invention relates to a rotary compressor assembly of the type in which an electric motor and a rotary compressor are mounted in a seal capsule and share a common drive shaft. An intermediate pressure chamber is formed in the housing adjacent the outboard bearing of the compressor and a nonmechanical pressure difference principle is utilized to convey lubricating oil from the pump to the intermediate pressure chamber. A groove and paddle construction associated with the shaft conveys oil from the intermediate pressure chamber against the capsule pressure back into the capsule through the shaft bearings.