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:
May. 15, 2007
Filed:
Jul. 09, 1999
Malcolm J. Mcarthur, Fallbrook, CA (US);
Anthony C. Jones, San Diego, CA (US);
Malcolm J. McArthur, Fallbrook, CA (US);
Anthony C. Jones, San Diego, CA (US);
Hamilton Sundstrand Corporation, Windsor Locks, CT (US);
Abstract
A lubrication system for an expendable gas turbine engine () having a rotatable shaft () is provided. Bearings () journal the shaft () for rotation about an axis. The system includes a vessel () for containing lubricating oil, a conduit () extending from the vessel () to the bearings (), and a solenoid operated valve () in the conduit () and operable to only either fully open or fully closed. A control circuit () is provided for pulsing the solenoid () at a controlled rate to alternatingly (a) allow oil flow and (b) halt oil flow to the bearings () for a time insufficient to cause oil starvation of the bearings ().