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. 16, 2011
Filed:
Sep. 04, 2008
Raji Rexavier, Clarendon Hills, IL (US);
Robert T. Macvicar, Downers Grove, IL (US);
Edward J. Cryer, Iii, Homer Glen, IL (US);
Raji Rexavier, Clarendon Hills, IL (US);
Robert T. MacVicar, Downers Grove, IL (US);
Edward J. Cryer, III, Homer Glen, IL (US);
Electro-Motive Diesel Inc., LaGrange, IL (US);
Abstract
The present invention generally relates to a new valve guide for use in an exhaust valve system. Specifically, the invention is related to a valve guide that prevents acidic corrosion between the valve and the valve guide. The valve guide includes a number of contact portions, which engage the channel that is formed in the cylinder head near the exhaust port. The valve guide also includes a recess portion, situated in relation to a water jacket and between the contact portions. The recess portion and contact portions are sized and shaped to maintain the surface temperature of the valve guide to prevent condensation of acidic gases between the valve stem and the valve guide.