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公开(公告)号：US20190256214A1
公开(公告)日：2019-08-22
申请号：US15898741
申请日：2018-02-19
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Luc DIONNE , Bruno VILLENEUVE , Jean THOMASSIN
IPC: B64D27/08 , F02B53/14 , F02B41/10 , B64C25/16 , B64C25/14 , B64C25/34 , B64D29/04 , B64D33/08 , B64D35/02
Abstract: An assembly for an aircraft having a propeller, including a wheel well configured for receiving a retracted landing gear, the wheel well including walls and a closable bottom opening for deploying the landing gear therethrough, an engine assembly having an engine shaft configured for driving engagement with the propeller, and a mount assembly for supporting the engine assembly, the mount assembly connected to at least one of the walls of the wheel well. A method of supporting an engine assembly in an aircraft having a retractable landing gear and a propeller driven by the engine assembly is also discussed.
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公开(公告)号：US20190085774A1
公开(公告)日：2019-03-21
申请号：US15708919
申请日：2017-09-19
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Jean THOMASSIN , Bruno VILLENEUVE , Mike FONTAINE
CPC classification number: F02D23/00 , B64D27/04 , B64D41/00 , F02B37/004 , F02B37/105 , F02B41/10 , F02B53/02 , F02B53/14 , F02B2053/005 , F02C3/00 , F02C3/055 , F02C3/107 , F02C6/00 , F02C6/12 , F02C7/26 , F02C7/32 , F02C7/36 , F05D2220/40 , F16D11/14 , F16D48/06 , F16D2500/10418 , F16D2500/10462
Abstract: A method of operating a compoundable engine that includes a turbine having a turbine shaft and an intermittent internal combustion engine having an engine shaft. The engine shaft is rotated at a first rotational speed. The turbine is driven by exhaust gases of the intermittent internal combustion engine to rotate the turbine shaft while the engine shaft rotates independently from the turbine shaft. A rotatable load is driven with the turbine shaft. A rotational speed of the engine shaft is increased from the first rotational speed until the turbine shaft reaches a predetermined rotational speed. After the turbine shaft has reached the predetermined rotational speed, the rotational speed of the engine shaft is adjusted until the turbine shaft and the engine shaft are drivingly engageable with each other, and the turbine shaft with the engine shaft are engaged such that both are in driving engagement with the rotatable load.
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公开(公告)号：US20180347457A1
公开(公告)日：2018-12-06
申请号：US16100666
申请日：2018-08-10
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Bruno VILLENEUVE , Jean-Gabriel GAUVREAU
IPC: F02B55/10 , F02B53/04 , F01C11/00 , F01C19/12 , F02B55/14 , F02B55/08 , F02B53/10 , F01C1/22 , F01C21/10 , F01C20/02 , F02B53/00
CPC classification number: F02B55/10 , F01C1/22 , F01C11/002 , F01C19/12 , F01C20/02 , F01C21/06 , F01C21/10 , F01C21/108 , F02B53/04 , F02B53/10 , F02B55/08 , F02B55/14 , F02B2053/005 , Y02T10/17
Abstract: A rotary engine casing having at least one end wall of an internal cavity for a rotor including a seal-engaging plate sealingly engaging the peripheral wall to partially seal the internal cavity and a member mounted adjacent the seal-engaging plate outside of the internal cavity. The member and seal-engaging plate having abutting mating surfaces which cooperate to define between them at least one fluid cavity communicating with a source of liquid coolant. When the casing includes a plurality of rotor housings, the end wall may be between rotor housings. A method of manufacturing a rotary engine casing is also discussed.
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公开(公告)号：US20180106224A1
公开(公告)日：2018-04-19
申请号：US15294247
申请日：2016-10-14
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Luc DIONNE , Bruno VILLENEUVE , Maxime COURTOIS , Behzad HAGSHENAS , Andre JULIEN
Abstract: An inlet assembly for an auxiliary power unit for an aircraft, including a duct configured to provide fluid communication from an environment of the aircraft to an inlet of an engine of the auxiliary power unit, and a filter received in and extending across the duct. The filter includes a first filter portion permeable to air, positioned across only part of the duct and defining a transverse edge in the duct; a second filter portion permeable to air and extending from the transverse edge to an end downstream of the transverse edge, and a collection member impermeable to water. The collection member extends between the downstream end and a duct wall. The first and second filter portions are non-parallel and the second filter portion and the collection member are non-parallel. An auxiliary power unit assembly and a method of feeding air to an internal combustion engine are also discussed.
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公开(公告)号：US20180030883A1
公开(公告)日：2018-02-01
申请号：US15708442
申请日：2017-09-19
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Jean THOMASSIN , Sebastien BOLDUC , Bruno VILLENEUVE , Stephane BERUBE , Mike FONTAINE , David GAGNON-MARTIN , Andre JULIEN , Mark CUNNINGHAM , Serge LAFORTUNE , Pierre-Yves LEGARE
IPC: F02B29/04 , F01C11/00 , F01D13/00 , F02B33/34 , F02C6/12 , F02B61/04 , F01C1/22 , F02B41/10 , F02B53/00 , F02K5/00
CPC classification number: F02B29/0493 , B64D33/02 , B64D2033/0293 , F01C1/22 , F01C11/002 , F01C11/008 , F01D13/003 , F02B29/0412 , F02B29/0418 , F02B33/34 , F02B41/10 , F02B53/00 , F02B61/04 , F02B2053/005 , F02C6/12 , F02K5/00 , F05D2220/40 , Y02T10/146 , Y02T10/163 , Y02T10/17
Abstract: A compound engine assembly including a common air conduit having an inlet in fluid communication with ambient air, a compressor, at least one internal combustion engine having an inlet in fluid communication with an outlet of the compressor, a turbine section having an inlet in fluid communication with an outlet of the at least one internal combustion engine, the turbine section configured to compound power with the at least one internal combustion engine, and at least one heat exchanger in fluid communication with the common air conduit, each of the at least one heat exchanger configured to circulate a fluid of the engine assembly in heat exchange relationship with an airflow from the common air conduit circulating therethrough. The compressor has an inlet in fluid communication with the common air conduit upstream of the at least one heat exchanger. The internal combustion engine may be a reciprocating engine.
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Patent Agency Ranking
公开(公告)号：US20150167546A1
公开(公告)日：2015-06-18
申请号：US14108522
申请日：2013-12-17
Applicant: Pratt & Whitney Canada Corp.
Inventor： Bruno VILLENEUVE , David GAGNON-MARTIN , Gilbert OUELLET
IPC: F02B55/02
CPC classification number: F01C19/085 , F01C1/22 , F01C21/08 , F02B55/02 , F02B55/14 , F04C2240/801 , F04C2270/16 , F05C2201/0412 , F05C2251/10 , Y02T10/17 , Y10T29/49234
Abstract: A rotary internal combustion engine with a rotor body made at least in major part of a first material, including at least one land protruding axially from each of its end faces and defining a contact surface extending at a fixed position with respect to the end faces. The contact surface frictionally engages a portion of the inner surface of the internal cavity of the engine, and at least the outer surface of the land includes a second material. The second material has a greater wear resistance than that of the first material with respect to frictional engagement with the portion of the inner surface of the internal cavity contacting the land. A method of axially positioning a rotor of a rotary engine within an internal cavity of an outer body of the engine are also discussed.
Abstract translation: 一种旋转式内燃机，其具有至少在第一材料的主要部分上制成的转子体，该旋转内燃机包括从其每个端面轴向突出的至少一个凸台，并限定了相对于端面在固定位置延伸的接触表面。 接触表面摩擦地接合发动机的内腔的内表面的一部分，并且至少外壳的外表面包括第二材料。 与第一材料的摩擦接合相比，第二材料具有比与内部空腔的内表面接触的部分更大的耐磨性。 还讨论了将旋转发动机的转子轴向定位在发动机的外部主体的内部空腔内的方法。
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公开(公告)号：US20180306147A1
公开(公告)日：2018-10-25
申请号：US15496446
申请日：2017-04-25
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Bruno VILLENEUVE , Jean THOMASSIN
CPC classification number: F02M35/10268 , F01C1/00 , F01P3/18 , F01P2001/005 , F02B33/40 , F02B37/16 , F02C6/12 , F02C7/057 , F02C7/14 , F02M35/10013 , F02M35/10157 , F02M35/10255 , F05D2260/213
Abstract: An engine assembly including an internal combustion engine configured to be received in an engine compartment and a heat exchanger having a first conduit fluidly connected to a fluid circuitry of the engine and a second conduit fluidly connecting an interior of the engine compartment to its environment. The first conduit is in heat exchange relationship with the second conduit. The assembly further includes a forced air system operable in use to provide an air flow from the environment to the outlet via the second conduit of the heat exchanger and the engine compartment. The assembly further includes a selector valve configurable to selectively fluidly connect an air intake of the internal combustion engine with the interior of the engine compartment in a first valve position and with the environment in a second valve position. A method for supplying air to an internal combustion engine is also discussed.
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公开(公告)号：US20170226959A1
公开(公告)日：2017-08-10
申请号：US15227519
申请日：2016-08-03
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Andre JULIEN , Jean THOMASSIN , Maxime COURTOIS , Bruno VILLENEUVE , Serge DUSSAULT , Richard ULLYOTT , Serge LAFORTUNE , Luc DIONNE , Anthony JONES , Behzad HAGSHENAS , David MENHEERE
CPC classification number: F02K1/386 , B64D41/00 , B64D2041/002 , F01C1/22 , F01C21/18 , F01N3/05 , F01P5/02 , F01P11/10 , F02B53/02 , F02B63/04 , F02B63/06 , F02B67/04 , F02B2053/005 , F02C5/00 , F02C7/14 , F02C7/18 , F02K1/82 , F02K5/00 , F05D2220/50 , F05D2260/213 , F05D2300/173 , F05D2300/43 , F05D2300/603 , Y02T10/17 , Y02T50/53 , Y02T50/672 , Y02T50/676
Abstract: An engine assembly for an aircraft, including an internal combustion engine having a liquid coolant system in fluid communication with a heat exchanger, an exhaust duct in fluid communication with air passages of the heat exchanger, a fan in fluid communication with the exhaust duct for driving a cooling air flow through the air passages of the heat exchanger and into the exhaust duct, and an intermediate duct in fluid communication with an exhaust of the engine and having an outlet positioned within the exhaust duct downstream of the fan and upstream of the outlet of the exhaust duct. The outlet of the intermediate duct is spaced inwardly from a peripheral wall of the exhaust duct. The engine assembly may be configured as an auxiliary power unit. A method of discharging air and exhaust gases in an auxiliary power unit having an internal combustion engine is also discussed.
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公开(公告)号：US20160245154A1
公开(公告)日：2016-08-25
申请号：US14806918
申请日：2015-07-23
Applicant: Pratt & Whitney Canada Corp.
Inventor： Jean THOMASSIN , Sebastien BOLDUC , Bruno VILLENEUVE , Stephane BERUBE , Mike FONTAINE , David GAGNON-MARTIN , Andre JULIEN , Mark CUNNINGHAM , Serge LAFORTUNE , Pierre-Yves LEGARE
CPC classification number: F02B29/0493 , F01C1/22 , F01C11/002 , F01C11/008 , F01D13/003 , F02B29/0412 , F02B29/0418 , F02B33/34 , F02B41/10 , F02B53/00 , F02B61/04 , F02B2053/005 , F02C6/12 , F02K5/00 , F05D2220/40 , Y02T10/146 , Y02T10/163 , Y02T10/17
Abstract: A compound engine assembly including an air conduit having an inlet in fluid communication with ambient air around the compound engine assembly, a compressor having an inlet in fluid communication with the air conduit, an engine core including at least one rotary internal combustion engine and having an inlet in fluid communication with an outlet of the compressor, a turbine section having an inlet in fluid communication with an outlet of the engine core and configured to compound power with the engine core; and at least one heat exchanger in fluid communication with the air conduit, each heat exchanger configured to circulate a fluid of the engine assembly in heat exchange relationship with an airflow from the air conduit circulating therethrough. A method of supplying air to a compound engine assembly is also discussed.
Abstract translation: 一种复合发动机组件，其包括具有与复合发动机组件周围的环境空气流体连通的入口的空气导管，具有与空气管道流体连通的入口的压缩机，包括至少一个旋转内燃机的发动机芯， 与压缩机的出口流体连通的入口，涡轮部分，其具有与发动机芯体的出口流体连通的入口并且被配置成与发动机芯体组合动力; 以及与空气管道流体连通的至少一个热交换器，每个热交换器被配置为使来自循环的空气管道的气流与发动机组件的流体以热交换关系循环。 还讨论了向复合发动机组件供应空气的方法。
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公开(公告)号：US20150337726A1
公开(公告)日：2015-11-26
申请号：US14816245
申请日：2015-08-03
Applicant: Pratt & Whitney Canada Corp.
Inventor： Eugene GEKHT , Bruno VILLENEUVE , Mike FONTAINE , David GAGNON-MARTIN
CPC classification number: F02B55/10 , F01C1/22 , F01C21/06 , F02B53/00 , F02B53/10 , F02B53/12 , F02B2053/005
Abstract: A rotary internal combustion engine having an insert opening defined in a hot area of one of the walls of the stator body and in communication with its internal cavity. A cooling jacket is received in and lines the insert opening. An insert is sealingly received in the cooling jacket and made of a material having a greater heat resistance than that of the wall. The cooling jacket extends between the insert and the wall along most of the length of the insert to prevent direct contact between the insert and the wall. A cooling gallery surrounds the cooling jacket and the insert, and is defined at least in part by the cooling jacket such that a coolant circulated therein contacts the cooling jacket. The cooling jacket is located between the cooling gallery and the insert.
Abstract translation: 一种旋转式内燃机，其具有限定在定子体的一个壁的热区域并与其内部空腔连通的插入口。 冷却套被容纳在插入开口中并且插入插入开口中。 密封地容纳在冷却套中并且由具有比壁的耐热性更高的材料制成的插入件。 冷却套沿插入件的大部分长度在插入件和壁之间延伸，以防止插入件和壁之间的直接接触。 冷却库围绕冷却套和插入件，并且至少部分地由冷却套限定，使得其中循环的冷却剂接触冷却套。 冷却套管位于冷却库和插入件之间。
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