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公开(公告)号：US10934888B2
公开(公告)日：2021-03-02
申请号：US16573242
申请日：2019-09-17
Applicant: United Technologies Corporation
Inventor： Thomas Bruce Avis , Francis Parnin , Michael Dreher , James S. Elder
Abstract: Disclosed is a lubricant supply system for a plurality of bearing dampers in a plurality of engine bearing compartments of a gas turbine engine, including a lubricant supply conduit, a first lubricant delivery conduit fluidly coupled to the supply conduit, the first delivery conduit including one or more lubricant delivery flow paths and delivering lubrication to engine components, a second lubricant delivery conduit fluidly coupled to the supply conduit, the second delivery conduit delivering lubricant to one or more of the plurality of bearing dampers, and an active oil flow management valve, selectively restricting lubricant flow in the first delivery conduit, increasing pressure in the second delivery conduit, based on an engine shaft rotational speed.
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公开(公告)号：US10711644B2
公开(公告)日：2020-07-14
申请号：US15495639
申请日：2017-04-24
Applicant: United Technologies Corporation
Inventor： Thomas Bruce Avis , Francis Parnin
Abstract: A gas turbine engine includes a bearing compartment that has an inlet. A supply line splits into a supply conduit and a reservoir conduit that are fluidly parallel to one another for a length. The reservoir conduit fluidly rejoins the supply conduit at a junction. The supply conduit is fluidly connected to the inlet, and the reservoir conduit includes a flow restrictor upstream from the junction. A main pump is fluidly connected to the supply line and is configured to supply a lubricant to the bearing compartment through the supply line and supply and reservoir conduits in an operating state. The main pump has a non-operating state in which the reservoir conduit is configured to slowly refill the supply conduit through the flow restrictor.
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公开(公告)号：US20200011201A1
公开(公告)日：2020-01-09
申请号：US16573242
申请日：2019-09-17
Applicant: United Technologies Corporation
Inventor： Thomas Bruce Avis , Francis Parnin , Michael Dreher , James S. Elder
Abstract: Disclosed is a lubricant supply system for a plurality of bearing dampers in a plurality of engine bearing compartments of a gas turbine engine, including a lubricant supply conduit, a first lubricant delivery conduit fluidly coupled to the supply conduit, the first delivery conduit including one or more lubricant delivery flow paths and delivering lubrication to engine components, a second lubricant delivery conduit fluidly coupled to the supply conduit, the second delivery conduit delivering lubricant to one or more of the plurality of bearing dampers, and an active oil flow management valve, selectively restricting lubricant flow in the first delivery conduit, increasing pressure in the second delivery conduit, based on an engine shaft rotational speed.
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公开(公告)号：US10240534B2
公开(公告)日：2019-03-26
申请号：US15031558
申请日：2014-05-23
Applicant: United Technologies Corporation
Inventor： Robert F. Sheil , Thomas Bruce Avis , Peter Tu
Abstract: A fuel supply manifold of a gas turbine engine, a method for assembling a fuel supply manifold for a gas turbine engine, and a gas turbine engine are disclosed. The fuel supply manifold for the gas turbine engine man include a plurality of fuel supply tubes, a fitting connecting at least two members of the plurality of fuel supply tubes, a bracket attached to the fitting, a bearing housing having a ball bearing, a bushing attached to a diffuser case of the gas turbine engine, wherein the bushing is surrounded by the ball bearing, and a removable fastener to connect the bearing housing to the bracket.
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公开(公告)号：US20180128121A1
公开(公告)日：2018-05-10
申请号：US15344132
申请日：2016-11-04
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： Thomas Bruce Avis , Michael Dreher , Erik R. Granstrand
CPC classification number: F01D25/164 , F01D5/02 , F01D9/065 , F01D25/08 , F01D25/125 , F01D25/18 , F01D25/24 , F05D2220/32 , F05D2260/231 , Y02T50/675
Abstract: Disclosed is a lubricant supply system for a bearing damper in an engine bearing compartment of a gas turbine engine, the bearing compartment rotatably supporting an engine component, including a first interface, a second interface, a supply conduit fluidly coupled to the second interface and extending from the first interface to the second interface, the conduit supplying lubricant to the bearing damper and including a first discrete cavity, extending proximate to the first interface, a second discrete cavity, extending proximate to the second interface, the discrete cavities, mutually spaced to be substantially outside a core gas path C of engine, the discrete cavities being air sealed against the supply conduit, insulating fluid in the supply conduit from heat transferred from the interfaces.
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Patent Agency Ranking
公开(公告)号：US20180128124A1
公开(公告)日：2018-05-10
申请号：US15344195
申请日：2016-11-04
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： Thomas Bruce Avis , Francis Parnin , Michael Dreher , James S. Elder
CPC classification number: F01D25/18 , F01D5/02 , F01D19/00 , F01D25/16 , F01D25/164 , F01D25/166 , F01D25/20 , F05D2220/32 , F05D2260/96 , F05D2270/01 , F05D2270/304 , F16C27/045 , F16C2360/23
Abstract: Disclosed is a lubricant supply system for a plurality of bearing dampers in a plurality of engine bearing compartments of a gas turbine engine, including a lubricant supply conduit, a first lubricant delivery conduit fluidly coupled to the supply conduit, the first delivery conduit including one or more lubricant delivery flow paths and delivering lubrication to engine components, a second lubricant delivery conduit fluidly coupled to the supply conduit, the second delivery conduit delivering lubricant to one or more of the plurality of bearing dampers, and an active oil flow management valve, selectively restricting lubricant flow in the first delivery conduit, increasing pressure in the second delivery conduit, based on an engine shaft rotational speed.
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公开(公告)号：US20180128122A1
公开(公告)日：2018-05-10
申请号：US15344157
申请日：2016-11-04
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： Thomas Bruce Avis , Michael Dreher , Erik R. Granstrand
Abstract: A lubricant supply system for a bearing damper in an engine bearing compartment of a gas turbine engine, the bearing compartment rotatably supporting an engine component and including a drain system for purging excess lubricant, including a first interface, a second interface, a drain conduit fluidly coupled to the first interface and extending from the first interface to the second interface, the drain conduit receiving fluid, including excess lubricant and lubricant purging air, from the first interface, a supply conduit located within the drain conduit, extending between the interfaces the supply conduit providing lubricant to the bearing damper and fluid in the drain conduit is capable of insulting fluid in the supply conduit from heat transferred through the interfaces.
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公开(公告)号：US10662810B2
公开(公告)日：2020-05-26
申请号：US15344185
申请日：2016-11-04
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： Thomas Bruce Avis , Michael Dreher , Erik R. Granstrand
Abstract: Disclosed is a lubricant supply system, for a bearing damper in a bearing housing, the bearing housing in an engine bearing compartment of a gas turbine engine, the bearing compartment rotatably supporting an engine component, including a first interface, a second interface, a bearing supply conduit fluidly coupled to the second interface and extending from the first interface to the second interface, the bearing supply conduit supplying lubricant to the bearing housing, a damper supply conduit located within the bearing supply conduit, extending between the interfaces, the damper supply conduit supplying lubricant to the bearing damper, and fluid in the bearing supply conduit is capable of insulting fluid in the damper supply conduit 108 from heat transferred through the interfaces.
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公开(公告)号：US10458278B2
公开(公告)日：2019-10-29
申请号：US15344195
申请日：2016-11-04
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： Thomas Bruce Avis , Francis Parnin , Michael Dreher , James S. Elder
Abstract: Disclosed is a lubricant supply system for a plurality of bearing dampers in a plurality of engine bearing compartments of a gas turbine engine, including a lubricant supply conduit, a first lubricant delivery conduit fluidly coupled to the supply conduit, the first delivery conduit including one or more lubricant delivery flow paths and delivering lubrication to engine components, a second lubricant delivery conduit fluidly coupled to the supply conduit, the second delivery conduit delivering lubricant to one or more of the plurality of bearing dampers, and an active oil flow management valve, selectively restricting lubricant flow in the first delivery conduit, increasing pressure in the second delivery conduit, based on an engine shaft rotational speed.
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公开(公告)号：US20180306062A1
公开(公告)日：2018-10-25
申请号：US15495639
申请日：2017-04-24
Applicant: United Technologies Corporation
Inventor： Thomas Bruce Avis , Francis Parnin
Abstract: A gas turbine engine includes a bearing compartment that has an inlet. A supply line splits into a supply conduit and a reservoir conduit that are fluidly parallel to one another for a length. The reservoir conduit fluidly rejoins the supply conduit at a junction. The supply conduit is fluidly connected to the inlet, and the reservoir conduit includes a flow restrictor upstream from the junction. A main pump is fluidly connected to the supply line and is configured to supply a lubricant to the bearing compartment through the supply line and supply and reservoir conduits in an operating state. The main pump has a non-operating state in which the reservoir conduit is configured to slowly refill the supply conduit through the flow restrictor.
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