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:
Jan. 23, 2007
Filed:
Jun. 21, 2004
Irene L. Nava, Chula Vista, CA (US);
Michael A. Coe, San Diego, CA (US);
Irene L. Nava, Chula Vista, CA (US);
Michael A. Coe, San Diego, CA (US);
Solar Turbine Incorporated, San Diego, CA (US);
Abstract
In order to minimize a clearance between a turbine and its housing, and thus, improve the efficiency of a turbine engine, an abradable coating can be applied to an inner surface of the turbine housing. However, there are no known abradable coatings that can be applied to a housing that is subjected to temperatures between 950–1500° F. for extended periods of time. The apparatus of the present disclosure includes a housing including a 950–1500° F. section in which at least one rotating blade row is positioned. The rotating blades and the 950–1500° F. section each includes a surface being comprised of a relatively non-abradable material. The surface of the housing comprised of the relatively non-abradable material is covered by a 950–1500° F. relatively abradable coating that includes a metallic matrix and at least one of a thermoplastic and dry lubricant. The metallic matrix is 55–85% of the coating by volume.