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:
Nov. 11, 2025
Filed:
May. 03, 2024
Hamilton Sundstrand Corporation, Charlotte, NC (US);
Craig Beers, Wethersfield, CT (US);
Brent Merritt, Southwick, MA (US);
HAMILTON SUNDSTRAND CORPORATION, Charlotte, NC (US);
Abstract
A ram air journal bearing shaft includes an additively manufactured body having a main body portion and a journal bearing portion. The main body portion and the journal bearing portion are coaxial along a first axis. At least a first set of heat exchanger fins extends from an outer diameter of the ram air journal bearing shaft to an inner diameter tie rod passage. Each heat exchanger fin in the first set of heat exchanger fins is additively manufactured as an integral structure to the additively manufactured body. A set of cooling air passages is disposed circumferentially about the first axis. Each cooling air passage is defined between adjacent heat exchanger fins of the first set of heat exchanger fins. The ram air journal bearing shaft is configured such that a cooling flowpath through the cooling air passages is established.