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:
Jul. 05, 2005
Filed:
Mar. 28, 2003
Sundaram L. Narasimhan, Marshall, MI (US);
Sinharoy Shubhayu, Kalamazoo, MI (US);
Michael L. Killian, Troy, MI (US);
Majo Cecur, Turin, IT;
Jose F. Masello, Battle Creek, MI (US);
Timothy L. Sheren, Grand Ledge, MI (US);
Sundaram L. Narasimhan, Marshall, MI (US);
Sinharoy Shubhayu, Kalamazoo, MI (US);
Michael L. Killian, Troy, MI (US);
Majo Cecur, Turin, IT;
Jose F. Masello, Battle Creek, MI (US);
Timothy L. Sheren, Grand Ledge, MI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A composite lightweight engine poppet valve () that has a valve head portion () and at least a portion of the stem portion () made from a titanium intermetallic material attached by way of a solid state attachment to a nickel base alloy transition piece () that is heat treated for high creep resistance. The tip portion () made from conventional material is first attached to one end of the transition piece. The transition piece () is cut to a desired length and then attached preferably by friction welding to the titanium intermetallic stem portion () at a preselected distance (d, d, or d). The tip portion () made from conventional material is then attached to the other end of the transition piece. In another embodiment, a second hollow stem portion () is attached to the transition piece () and the tip portion () is then attached thereto.