Fluid system with gravity controlled valve
AssigneeUnited Technologies Corporation
InventorJinQuan Xu
Life of this patent
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Abstract
A fluid system for use with a gas turbine engine includes a reservoir having a reservoir inlet and a reservoir outlet and includes a supply assembly positioned in the reservoir. The supply assembly includes a first passage, a second passage, and a valve disc. The first and second passages are fluidically connected to the reservoir outlet. The valve disc is positioned in the first passage. The valve disc is pivotable about an axis and is weighted to have a center of gravity offset from the axis.
Claims20
A fluid system for use with a gas turbine engine, the fluid system comprising:
- a reservoir having a reservoir inlet and a reservoir outlet;
- and
- a supply assembly positioned in the reservoir, the supply assembly comprising:
- a first passage fluidically connected to the reservoir outlet;
- a second passage fluidically connected to the reservoir outlet;
- and
- a valve disc positioned in the first passage, wherein the valve disc is pivotable about an axis and is weighted to have a center of gravity offset from the axis.
A lubrication system for use with a gas turbine engine, the lubrication system comprising:
- a reservoir having a reservoir inlet and a reservoir outlet;
- and
- a supply assembly positioned in the reservoir, the supply assembly comprising:
- a first passage fluidically connected to the reservoir outlet;
- a second passage fluidically connected to the reservoir outlet;
- and
- a pivotable valve fluidically connected to the first passage and configured to be open under positive gravity conditions and to be closed under negative gravity conditions.
A gas turbine engine comprising:
- a spool comprising a compressor and a turbine connected by a spool shaft;
- a fan;
- a fan drive gear system connecting the fan to the spool shaft such that rotation of the spool drives rotation of the fan;
- a reservoir having a reservoir inlet and a reservoir outlet, wherein the fan drive gear system is fluidically connected to the reservoir inlet and the reservoir outlet;
- and
- a supply assembly positioned in the reservoir, the supply assembly comprising:
- a first passage fluidically connected to the reservoir outlet;
- a second passage fluidically connected to the reservoir outlet;
- and
- a pivotable valve fluidically connected to the first passage and configured to be open under positive gravity conditions and to be closed under negative gravity conditions.
Dependencies are inferred from the claim text.