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. 05, 2005
Filed:
Apr. 04, 2003
Applicant:
Steve Roby, Ashville, NC (US);
Inventor:
Steve Roby, Ashville, NC (US);
Assignee:
BorgWagner Inc., Auburn Hills, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F04B017/00 ;
U.S. Cl.
CPC ...
Abstract
A turbocharger including means for preventing or reducing coking, particularly following engine shutdown, without noticeably increasing weight or volume of the turbocharger. The turbocharger bearing housing () has defined therein a lubrication flow path for bearing lubricant and a lubricant drain gallery () below a shaft (), and in accordance with the invention at least a portion of a wall () of the lubricant drain gallery () is coated with an oil repellant and/or heat insulating coating ().