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. 04, 2009
Filed:
Nov. 30, 2005
Steven D. Arnold, Ranch Palos Verdes, CA (US);
Gary D. Vrbas, Wilmington, CA (US);
Kristian N. Dullack, Carson, CA (US);
Glenn F. Thompson, Palos Verdes Estates, CA (US);
Steven D. Arnold, Ranch Palos Verdes, CA (US);
Gary D. Vrbas, Wilmington, CA (US);
Kristian N. Dullack, Carson, CA (US);
Glenn F. Thompson, Palos Verdes Estates, CA (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A turbocharger with a two-stage compressor having first- and second-stage impellers mounted on a common shaft in a back-to-back configuration. The first-stage impeller has a boreless configuration, defining an unthreaded pilot hole receiving an unthreaded end of the shaft so as to establish a coaxial relationship between the impeller and the shaft. The first impeller further defines a hollow cylindrical pilot member that projects from the back of the impeller and is received in a portion of the bore through the second-stage impeller to position the impellers coaxially with each other. The shaft passes through the pilot member and is externally threaded for engaging threads on the inner surface of the pilot member to secure the impellers to the shaft. The bore of the second impeller has a second portion that engages an outer cylindrical surface of the shaft to establish a coaxial relationship between the shaft and impeller.