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:
Aug. 05, 2008
Filed:
Mar. 01, 2005
Steve Don Arnold, Ranch Palos Verdes, CA (US);
Kristian N. Dullack, Carson, CA (US);
David A. Calta, Newbury Park, CA (US);
Glenn F. Thompson, Palos Verdes Estates, CA (US);
Steve Don Arnold, Ranch Palos Verdes, CA (US);
Kristian N. Dullack, Carson, CA (US);
David A. Calta, Newbury Park, CA (US);
Glenn F. Thompson, Palos Verdes Estates, CA (US);
Honeywell International, Inc., Morristown, NJ (US);
Abstract
A two-stage radial compressor having a ported second-stage shroud, forming a passive surge control system. Thus, some proportion of the fluid is allowed to flow between the second-stage of the compressor in the vicinity of the impeller blade tips, through a port in the shroud into an upstream portion of the compressor flow path that leads into the second-stage impeller inlet. The fluid is allowed to flow in either direction, depending on the pressure difference existing between the two locations. Surge margin at higher pressure ratios is significantly increased by the ported second-stage shroud.