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:
Dec. 11, 2012
Filed:
Sep. 22, 2009
Yogendra Yogi Sheoran, Scottsdale, AZ (US);
Bruce Dan Bouldin, Phoenix, AZ (US);
Vunnam Kiran, Andhra Pradesh, IN;
John Pfligler, Phoenix, AZ (US);
Lori Wheeler, Scottsdale, AZ (US);
Lance Callen, Phoenix, AZ (US);
Reha Gomuc, Phoenix, AZ (US);
Yogendra Yogi Sheoran, Scottsdale, AZ (US);
Bruce Dan Bouldin, Phoenix, AZ (US);
Vunnam Kiran, Andhra Pradesh, IN;
John Pfligler, Phoenix, AZ (US);
Lori Wheeler, Scottsdale, AZ (US);
Lance Callen, Phoenix, AZ (US);
Reha Gomuc, Phoenix, AZ (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
Assemblies for cooling an aft bearing assembly mounted to a rotor are provided. An assembly includes a static aft bearing structure configured to surround the aft bearing assembly and including a cylindrical section defining a cavity for disposal of the aft bearing assembly, a plurality of hollow struts extending from the static aft bearing structure, each hollow strut including an outer radial end configured to receive a gas from an air source and to provide a pathway for the gas to flow into the cavity, and a center-body cap disposed over an end of the static aft bearing structure, the center-body cap including a rim configured to create a low pressure region at an interface between the static aft bearing structure and the center-body cap, wherein the low pressure region has a pressure that is lower than a pressure within the cavity.