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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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公开(公告)号：US20180163541A1
公开(公告)日：2018-06-14
申请号：US15880688
申请日：2018-01-26
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Bruno VILLENEUVE , David GAGNON-MARTIN , Gilbert OUELLET
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, with at least the contact surface of the rotor lands including a second material having 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 at least one land. For at least one of the end faces, the land(s) include(s) the first material and the contact surface is defined by a surface layer of the second material on the first material. 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.
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Patent Agency Ranking
公开(公告)号：US20160245161A1
公开(公告)日：2016-08-25
申请号：US14806902
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: F02B41/00 , B64D33/10 , F01C1/22 , F01C11/008 , F01C21/06 , F01C21/18 , F02C3/04 , F02C6/18 , F02C7/04 , F02C7/042 , F02C7/14 , Y02T50/675
Abstract: A compound engine assembly including a compressor, 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 an air conduit having at least one heat exchanger extending thereacross. An outer wall of the air conduit has a plurality of openings defined therethrough downstream of the heat exchanger(s), each selectively closable by a pivotable flap movable between a retracted position where the opening is obstructed and an extended position away from the opening. Each opening defines a fluid communication between the air conduit and the ambient air when the respective flap is in the extended position. A method of directing flow through a compound engine assembly is also discussed.
Abstract translation: 一种复合发动机组件，包括压缩机，包括至少一个旋转内燃机的发动机内燃机，并且具有与压缩机的出口流体连通的入口，具有与发动机芯的出口流体连通的入口的涡轮部分，以及 配置成与发动机芯组合动力，以及具有至少一个在其上延伸的热交换器的空气管道。 空气管道的外壁具有在热交换器的下游限定的多个开口，每个开口可由可枢转的翼片选择性地关闭，所述枢转折翼可在开口被阻塞的缩回位置和远离开口的延伸位置之间移动。 当各个翼片处于伸出位置时，每个开口限定了空气管道和环境空气之间的流体连通。 还讨论了引导流过复合发动机组件的方法。
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公开(公告)号：US20160245152A1
公开(公告)日：2016-08-25
申请号：US14806883
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: F02B29/0406 , F01C1/22 , F01C11/008 , F01C21/18 , F02B29/0412 , F02B33/40 , F02B37/12 , F02B39/04 , F02B53/08 , F02B53/14 , F02C6/12 , F02C7/047 , F02C7/052 , F02C7/055 , F02C7/14 , F02C7/36 , F02M31/042 , F02M31/10 , F02M31/107 , F05D2250/312 , F05D2260/40311 , F05D2260/98 , Y02T10/126 , Y02T10/17 , Y02T50/675
Abstract: An intake assembly for a compressor providing compressed air to an internal combustion engine core, including an air conduit having at least one heat exchanger extending thereacross, an intake plenum for the compressor, a first intake conduit connected to the air conduit upstream of the heat exchanger(s), a second intake conduit connected to the air conduit downstream of the heat exchanger(s), and a selector valve configurable between a first configuration to allow a fluid communication between the intake plenum and the air conduit through the first intake conduit and a second configuration to prevent the fluid communication through the first intake conduit. Fluid communication between the intake plenum and the air conduit through the second intake conduit is allowed at least when the selector valve is in the second configuration. An engine assembly and method of supplying air to a compressor are also discussed.
Abstract translation: 一种用于压缩机的进气组件，其向内燃机芯提供压缩空气，包括具有至少一个在其上延伸的热交换器的空气导管，用于压缩机的进气增压室，连接到热交换器上游的空气管道的第一进气管 连接到所述热交换器下游的所述空气导管的第二进气管，以及可配置在允许所述进气室和所述空气管通过所述第一进气管道之间的流体连通的第一配置之间的选择阀，以及 第二构造，用于防止通过第一进气管道的流体连通。 至少当选择阀处于第二配置时，容许通过第二进气管进气通道和空气管道之间的流体连通。 还讨论了一种向压缩机供应空气的发动机组件和方法。
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公开(公告)号：US20150167465A1
公开(公告)日：2015-06-18
申请号：US14606182
申请日：2015-01-27
Applicant: Pratt & Whitney Canada Corp.
Inventor： Eugene GEKHT , Jean THOMASSIN , Sebastien BOLDUC , David GAGNON-MARTIN
Abstract: A rotor for a rotary internal combustion engine with a first face seal biased axially outwardly away from the first end face has opposed curled ends abutting a first end seal of a respective one of the adjacent apex portions, and a second face seal biased axially outwardly away from the second end face has opposed curled ends abutting a second end seal of a respective one of the adjacent apex portions. A rotary internal combustion engine and a method of sealing chambers of a Wankel engine are also discussed.
Abstract translation: 用于旋转内燃机的转子，其具有从第一端面轴向向外偏置的第一面密封件，其相对的卷曲端部邻接相邻顶点部分中的相应顶端部分的第一端部密封件，以及轴向向外偏压的第二面密封件 从第二端面具有相对的卷曲端部邻接相邻顶点部分中的相应顶端部分的第二端部密封件。 还讨论了旋转内燃机和密封腔室的方法。
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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。
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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。
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