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. 23, 2017
Filed:
Jul. 31, 2014
Trane International Inc., Piscataway, NJ (US);
Scott Joseph Smerud, La Crosse, WI (US);
John Robert Sauls, La Crosse, WI (US);
Michael Gerard Benco, Onalaska, WI (US);
Jerry Allen Rood, Onalaska, WI (US);
Keith Adam Novak, Holmen, WI (US);
Derrick Lepak, La Crosse, WI (US);
Joseph M. Heger, West Salem, WI (US);
TRANE INTERNATIONAL INC., Davidson, NC (US);
Abstract
A scroll compressor includes an orbiting scroll member disposed within a compressor housing. The orbiting scroll member has a substantially circular baseplate and a generally spiral wrap extending from its base. A first seal is disposed proximal to the outer periphery of the orbiting scroll baseplate to provide an external seal between the baseplate and the housing. A second seal is disposed radially inward from the first seal to provide an internal seal between the baseplate and the housing. A space between the internal seal and the external seal defines a balance piston chamber. The balance piston chamber is pressurized via a high or intermediate pressure oil source to reduce thrust loading on the baseplate caused by an axial pressure differential across the baseplate.