-
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.
-
公开(公告)号：US20140245988A1
公开(公告)日：2014-09-04
申请号：US13783707
申请日：2013-03-04
Applicant: Pratt & Whitney Canada Corp.
Inventor： Bruno VILLENEUVE , Jean-Gabriel GAUVREAU , David GAGNON-MARTIN , André JULIEN , Jean THOMASSIN
IPC: F02B53/10
CPC classification number: F02B53/10 , F01C1/22 , F01C21/06 , F02B19/00 , F02B19/108 , F02B53/00 , F02B53/12 , F02B53/14 , F02B2053/005 , Y02T10/125 , Y02T10/17
Abstract: A rotary engine with an outer body having an insert located in the peripheral offset from the rotor cavity such that a portion of the peripheral wall extends between the insert and the cavity. The insert has a pilot subchamber defined therein and the portion of the peripheral wall has at least one opening defined therethrough in communication with the at least one outlet opening of the insert and with the cavity. A method of combusting fuel into a rotary engine is also discussed.
Abstract translation: 一种具有外主体的旋转发动机，其具有位于从转子腔偏移的周边中的插入件，使得周壁的一部分在插入件和空腔之间延伸。 插入件具有限定在其中的引导子室，并且周壁的部分具有限定穿过其中的至少一个开口，其与插入件的至少一个出口和空腔连通。 还讨论了将燃料燃烧到旋转发动机中的方法。
-
公开(公告)号：US20140147320A1
公开(公告)日：2014-05-29
申请号：US13684390
申请日：2012-11-23
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Jean-Gabriel GAUVREAU , David GAGNON-MARTIN
IPC: F01C1/00
Abstract: A rotor for a Wankel engine including a plurality of ribs extending from a bearing support to each one of the flanks, the plurality of ribs including, for each flank, first and second ribs connected to the flank between the recess and a respective one of the apex portions. The first and second ribs are curved along at least a portion thereof, and/or the first and second ribs are closest to the respective apex portion and connected to the flank adjacent a junction between a portion of the flank defining the recess and a respective portion of the flank connected thereto. A method of reducing pinching of apex seals in a rotor of a Wankel engine is also discussed.
Abstract translation: 一种用于汪克尔发动机的转子，其包括从轴承支撑件延伸到每个侧面的多个肋，所述多个肋包括用于每个侧面的第一和第二肋，所述第一和第二肋连接到所述凹部与所述凹部中的相应一个之间的侧面 顶端部分。 第一和第二肋条沿着其至少一部分弯曲，和/或第一和第二肋条最靠近相应的顶点部分并且连接到邻近位于限定凹部的侧面的一部分与相应部分 的侧面。 还讨论了减少汪克尔发动机转子中顶点密封夹紧的方法。
-
公开(公告)号：US20200232431A1
公开(公告)日：2020-07-23
申请号：US16251512
申请日：2019-01-18
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Etienne PLAMONDON , Sebastien BERGERON , Benjamin RENAUD , Jean-Gabriel GAUVREAU
Abstract: There is disclosed a method of operating an engine assembly including an internal combustion engine, a common-rail injector for injecting fuel in a combustion chamber of the internal combustion engine, and an oil circuit for lubricating components of the engine assembly. The method includes: injecting fuel in the combustion chamber via the common-rail injector; and exchanging heat between a backflow of fuel from the common-rail injector with oil of an oil circuit of the engine assembly.
-
公开(公告)号：US20190003307A1
公开(公告)日：2019-01-03
申请号：US16124663
申请日：2018-09-07
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Jean-Gabriel GAUVREAU , David GAGNON-MARTIN , Andre JULIEN
Abstract: A rotary engine where the rotor cavity has a peripheral inner surface having a peritrochoid configuration defined by a first eccentricity and the rotor has a peripheral outer surface having a peritrochoid inner envelope configuration defined by a second eccentricity larger than the first eccentricity. Also, a rotary engine where the rotor cavity has a peripheral inner surface having a peritrochoid configuration defined by an eccentricity, and a rotor with a peripheral outer surface between adjacent ones of the apex portions being inwardly offset from a peritrochoid inner envelope configuration defined by the eccentricity. The engine may have an expansion ratio with a value of at most 8. The rotary engine may be part of a compound engine system.
-
Patent Agency Ranking
公开(公告)号：US20210062772A1
公开(公告)日：2021-03-04
申请号：US16558847
申请日：2019-09-03
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Sebastien BERGERON , Etienne PLAMONDON , Jean-Gabriel GAUVREAU , Benjamin RENAUD
Abstract: A method of operating an aircraft engine of an aircraft, the aircraft engine having a common-rail fuel injection system for injecting fuel into a combustion chamber of the aircraft engine, including: pressurizing fuel for circulation through the common-rail injection system; circulating a portion of the pressurized fuel through a motive flow inlet of an ejector pump; and entraining a flow through the ejector pump with the portion of the pressurized fuel circulating through the motive flow inlet.
-
公开(公告)号：US20200300179A1
公开(公告)日：2020-09-24
申请号：US16361819
申请日：2019-03-22
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： David WADDLETON , Benjamin RENAUD , Sebastien BERGERON , Etienne PLAMONDON , Jean-Gabriel GAUVREAU
Abstract: A rotodynamic pump for pumping a fluid includes an impeller, a housing surrounding the impeller, and a pressure regulating mechanism. The pressure regulating mechanism is configured to adjust the clearance between the impeller and the impeller housing to regulate pressure of the fluid downstream of the impeller. A method of regulating the delivery pressure is also disclosed.
-
公开(公告)号：US20200232432A1
公开(公告)日：2020-07-23
申请号：US16294160
申请日：2019-03-06
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Sebastien BERGERON , Etienne PLAMONDON , Jean-Gabriel GAUVREAU , Benjamin RENAUD
Abstract: There is disclosed a method of de-icing a component of an engine assembly having a common-rail fuel injection system, including: pressurizing fuel to circulate the fuel through the common-rail injection system; drawing a portion of the fuel upstream of common-rail injectors of the common-rail injection system and directing a remainder of the fuel toward the common-rail injectors; and transferring heat from the drawn portion of the fuel to the component.
-
公开(公告)号：US20200232409A1
公开(公告)日：2020-07-23
申请号：US16352030
申请日：2019-03-13
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Etienne PLAMONDON , Sebastien BERGERON , Benjamin RENAUD , Jean-Gabriel GAUVREAU
Abstract: There is disclosed a method of operating an engine assembly including a combustion engine and a common-rail injector. The method includes: injecting fuel into a combustion chamber of the combustion engine via the common-rail injector thereby generating a backflow of fuel; and powering an actuator using at least a portion of the backflow of fuel. An engine assembly including the combustion engine is disclosed; the engine assembly having a fuel circuit fluidly connecting a fuel source, the common-rail injector, and the second injector outlet together. The fuel circuit has an actuator sub-circuit operatively connected to an outlet of the common-rail injector and an actuator fluidly connected to the actuator sub-circuit.
-
公开(公告)号：US20170175620A1
公开(公告)日：2017-06-22
申请号：US14974489
申请日：2015-12-18
Applicant: Pratt & Whitney Canada Corp.
Inventor： Bruno VILLENEUVE , Jean-Gabriel GAUVREAU
CPC classification number: F02B55/10 , F01C1/22 , F01C11/002 , F01C19/12 , F01C20/02 , 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.
-
-
-
-
-
-
-
-
-
Search Results
17
records
(took 0.034 seconds)
