Invention Grant
- Patent Title: Auxiliary oil system for negative gravity event
- Patent Title (中): 辅助油系负压重事件
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Application No.: US13484662Application Date: 2012-05-31
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Publication No.: US09410448B2Publication Date: 2016-08-09
- Inventor: William G. Sheridan , Paul H. Dolman
- Applicant: William G. Sheridan , Paul H. Dolman
- Applicant Address: US CT Hartford
- Assignee: UNITED TECHNOLOGIES CORPORATION
- Current Assignee: UNITED TECHNOLOGIES CORPORATION
- Current Assignee Address: US CT Hartford
- Agency: Carlson, Gaskey & Olds, P.C.
- Main IPC: F01D25/20
- IPC: F01D25/20 ; F16N7/40 ; F01M11/06

Abstract:
A lubrication system includes a bearing compartment. A main reservoir is fluidly connected to the bearing compartment by a main supply passage. A main pump is arranged in the main supply passage configured to provide fluid from the main reservoir to the bearing compartment during a positive gravity condition. A secondary supply passage fluidly connects the main reservoir to at least one segment of the main supply passage, thereby providing fluid from the main reservoir to the bearing compartment during a negative gravity condition. A method of supplying a bearing compartment with fluid includes pumping a fluid from a main reservoir to a bearing compartment through a main supply passage during a positive gravity condition, and providing fluid from the main reservoir to the bearing compartment through a secondary supply passage, fluidly connected to at least one segment of the main supply passage, in response to a negative gravity condition.
Public/Granted literature
- US20130319798A1 AUXILIARY OIL SYSTEM FOR NEGATIVE GRAVITY EVENT Public/Granted day:2013-12-05
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