AUXILIARY OIL SYSTEM FOR NEGATIVE GRAVITY EVENT
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Applicant
United Technologies Corporation
Representative
Application number
EP20163874A1
Kind
A1
Document number
3705701
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AUXILIARY OIL SYSTEM FOR NEGATIVE GRAVITY EVENT

3705701 - EP20163874A1 - EPO

Application May 13, 2013 - Publication Sep 09, 2020

William G. SHERIDAN Paul DOLMAN

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.

Description

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