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1. 发明申请

US20180187591A1 ENGINE INTAKE ASSEMBLY WITH SELECTOR VALVE 审中-公开
公开(公告)号：US20180187591A1
公开(公告)日：2018-07-05
申请号：US15849991
申请日：2017-12-21
申请人： PRATT & WHITNEY CANADA CORP.
发明人： Jean THOMASSIN , Sebastien BOLDUC , Bruno VILLENEUVE , Stephane BERUBE , Mike FONTAINE , David GAGNON-MARTIN , Andre JULIEN , Mark CUNNINGHAM , Serge LAFORTUNE , Pierre-Yves LEGARE
IPC分类号： F02B29/04 , F02C7/055 , F01C11/00 , F01C21/18 , F02B37/12 , F02B39/04 , F02B53/08 , F02M31/10 , F02M31/04 , F02C7/36 , F02C7/14 , F02C7/052 , F02C7/047 , F02C6/12 , F02B53/14 , F01C1/22
摘要： An engine assembly including an engine core including at least one internal combustion engine each including a rotor sealingly and rotationally received within a respective internal cavity to provide rotating chambers of variable volume in the respective internal cavity, a compressor having an outlet in fluid communication with an inlet of the engine core, a first intake conduit in fluid communication with an inlet of the compressor and with a first source of air, a second intake conduit in fluid communication with the inlet of the compressor and with a second source of air warmer than the first source of air, and a selector valve configurable to selectively open and close at least the fluid communication between the inlet of the compressor and the first intake conduit. A method of supplying air to a compressor is also discussed.

2. 发明申请

US20160245166A1 COMPOUND ENGINE ASSEMBLY WITH COAXIAL COMPRESSOR AND OFFSET TURBINE SECTION 有权
标题翻译：复合发动机组件与同轴压缩机和偏心涡轮机部分
公开(公告)号：US20160245166A1
公开(公告)日：2016-08-25
申请号：US14806880
申请日：2015-07-23
申请人： Pratt & Whitney Canada Corp.
发明人： Jean THOMASSIN , Sebastien BOLDUC , Bruno VILLENEUVE , Stephane BERUBE , Mike FONTAINE , David GAGNON-MARTIN , Jade BILODEAU , Andre JULIEN , Pierre-Yves LEGARE , Jason NICHOLS
IPC分类号： F02B53/14 , F02C3/04
CPC分类号： F02B53/14 , F01C1/22 , F01C11/008 , F01C21/18 , F02B29/0418 , F02B33/40 , F02B39/04 , F02B41/10 , F02B2053/005 , F02C3/04 , F02C3/107 , F02C6/00 , F02C6/12 , F02C6/20 , F02C7/047 , F02C7/052 , F02C7/055 , F02C7/14 , F02C7/36 , F02M31/042 , F02M31/10 , F02M31/107 , F05D2250/312 , F05D2260/40311 , F05D2260/98 , Y02T10/126 , Y02T10/146 , Y02T10/163 , Y02T10/17 , Y02T50/675
摘要： A compound engine assembly having an engine core including at least one internal combustion engine in driving engagement with an engine shaft, a compressor having an outlet in fluid communication with an inlet of the engine core and including at least one rotor rotatable about an axis coaxial with the engine shaft, the engine shaft in driving engagement with the compressor rotor, and a turbine section having an inlet in fluid communication with an outlet of the engine core and including at least one rotor engaged on a rotatable turbine shaft, the turbine shaft configured to compound power with the engine shaft. The turbine and engine shafts are parallel to and radially offset from one another, and the turbine shaft and the axis of the compressor rotor are parallel to and radially offset from one another. A method of driving a rotatable load of an aircraft is also discussed.
摘要翻译：一种复合发动机组件，其具有包括与发动机轴驱动接合的至少一个内燃机的发动机机芯，具有与发动机机芯的入口流体连通的出口的压缩机，并且包括至少一个转子，发动机轴，与压缩机转子驱动接合的发动机轴，以及涡轮部，其具有与发动机芯的出口流体连通的入口，并且包括接合在可旋转的涡轮轴上的至少一个转子，所述涡轮轴被配置为与发动机轴组合动力。涡轮机和发动机轴彼此平行并径向偏移，并且涡轮轴和压缩机转子的轴线彼此平行并径向偏移。还讨论了驱动飞行器的可旋转载荷的方法。

3. 发明申请

US20180030883A1 COMPOUND ENGINE ASSEMBLY WITH COMMON INLET 审中-公开
公开(公告)号：US20180030883A1
公开(公告)日：2018-02-01
申请号：US15708442
申请日：2017-09-19
申请人： PRATT & WHITNEY CANADA CORP.
发明人： Jean THOMASSIN , Sebastien BOLDUC , Bruno VILLENEUVE , Stephane BERUBE , Mike FONTAINE , David GAGNON-MARTIN , Andre JULIEN , Mark CUNNINGHAM , Serge LAFORTUNE , Pierre-Yves LEGARE
IPC分类号： F02B29/04 , F01C11/00 , F01D13/00 , F02B33/34 , F02C6/12 , F02B61/04 , F01C1/22 , F02B41/10 , F02B53/00 , F02K5/00
CPC分类号： 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
摘要： 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.

4. 发明申请

US20150167546A1 ROTARY ENGINE WITH ROTOR LAND 有权
标题翻译：带转子土地的旋转发动机
公开(公告)号：US20150167546A1
公开(公告)日：2015-06-18
申请号：US14108522
申请日：2013-12-17
申请人： Pratt & Whitney Canada Corp.
发明人： Bruno VILLENEUVE , David GAGNON-MARTIN , Gilbert OUELLET
IPC分类号： F02B55/02
CPC分类号： F01C19/085 , F01C1/22 , F01C21/08 , F02B55/02 , F02B55/14 , F04C2240/801 , F04C2270/16 , F05C2201/0412 , F05C2251/10 , Y02T10/17 , Y10T29/49234
摘要： 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.
摘要翻译：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。

5. 发明申请

US20140084130A1 GEARBOX POSITIONING DEVICE 有权
标题翻译：齿轮定位装置
公开(公告)号：US20140084130A1
公开(公告)日：2014-03-27
申请号：US13626160
申请日：2012-09-25
申请人： PRATT & WHITNEY CANADA CORP.
发明人： Marcin REJMAN , Louis BRILLON , David GAGNON-MARTIN
IPC分类号： F16M13/02
CPC分类号： F02C7/32 , B64D2027/266 , F02C7/20 , F05D2260/30
摘要： A gearbox positioning device to position a gearbox relative to an engine case of a gas turbine engine. The positioning device has a first and second part, with the first part having a connecting cavity of predetermined shape and being secured to the engine case. The second part has a coupling post received in the connecting cavity and constraining displacement of the gearbox in a laterally transverse direction with respect to the central longitudinal axis of the engine. The device permits movement of the gearbox in the axial direction of the engine as well as angular movement to prevent stressing the engine case during thermal growth of the engine case or support linkage imbalance. A gearbox positioning system incorporating the positioning device and the method of attaching same to the engine casing is also included.
摘要翻译：齿轮箱定位装置，用于相对于燃气涡轮发动机的发动机壳体定位齿轮箱。定位装置具有第一和第二部分，其中第一部分具有预定形状的连接腔并被固定到发动机壳体。第二部分具有接收在连接腔中的联接柱并且相对于发动机的中心纵向轴线横向横向限制齿轮箱的位移。该装置允许齿轮箱在发动机的轴向方向上的运动以及角度运动，以防止在发动机壳体或支撑连杆不平衡的热增长期间压缩发动机壳体。还包括结合有定位装置的齿轮箱定位系统和将其连接到发动机壳体的方法。

6. 发明申请

US20200325777A1 APEX SEAL ARRANGEMENT FOR ROTARY INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：US20200325777A1
公开(公告)日：2020-10-15
申请号：US16382776
申请日：2019-04-12
申请人： PRATT & WHITNEY CANADA CORP.
发明人： Johnny VINSKI , David GAGNON-MARTIN , Jean-Gabriel GAUVREAU , Roger HUPPE
IPC分类号： F01C19/10 , F01C19/02
摘要： A rotor assembly for a rotary internal combustion engine is provided. The rotor assembly includes a rotor having a radial groove defined radially in a peripheral surface of the rotor. The groove has a depth and an intermediate shoulder at an intermediate depth. The groove has a first width therealong that is narrower than an intermediate width at the shoulder. An apex seal is received in the groove and protrudes from the peripheral face of the rotor. The apex seal is configured to move radially between a first position and a second position outward of the first position. A biasing member biases the apex seal toward the second position. A platform is disposed in the groove between the apex seal and the biasing member and has a width greater than the first width.

7. 发明申请

US20190353115A1 METHOD AND SYSTEM FOR NON-FUNCTIONAL COMBUSTION CHAMBER DETECTION 审中-公开
公开(公告)号：US20190353115A1
公开(公告)日：2019-11-21
申请号：US15980724
申请日：2018-05-15
申请人： PRATT & WHITNEY CANADA CORP.
发明人： Michael LANKTREE , David GAGNON-MARTIN , Bruno VILLENEUVE
IPC分类号： F02D41/22 , F02B53/10 , F02B53/02 , F02D41/40 , F02D41/38
摘要： Systems and methods for detecting at least one non-functional combustion chamber of an engine comprising a plurality of combustion chambers are described herein. In response to detecting a partial output power loss of the engine, one of the plurality of combustion chambers is assessed by monitoring an engine parameter indicative of an output power of the engine, determining whether a change in the engine parameter has occurred, when the change has occurred, determining that the combustion chamber is functional, and when no change has occurred, determining that the combustion chamber is non-functional and discontinuing fuel injection to the non-functional combustion chamber.

8. 发明申请

US20150040855A1 Rotary Internal Combustion Engine with Static Oil Seal 有权
标题翻译：带静油封的旋转式内燃机
公开(公告)号：US20150040855A1
公开(公告)日：2015-02-12
申请号：US13960045
申请日：2013-08-06
申请人： Pratt & Whitney Canada Corp.
发明人： Jean THOMASSIN , Jean-Gabriel GAUVREAU , David GAGNON-MARTIN , Bruno VILLENEUVE
IPC分类号： F02B55/08
CPC分类号： F02B55/08 , F02B2053/005
摘要： A stator for a rotary internal combustion engine, with a body having an internal cavity. Each end wall has a scavenging cavity defined therein in fluid communication with the internal cavity through a respective scavenging opening extending through the inner surface thereof, and at least one annular oil seal groove defined in the inner surface thereof concentric with the central bore and located radially outwardly of the scavenging opening. At least one annular oil seal is received in each groove and protrudes from the end wall into the internal cavity for sealing engagement with a surface of a rotor of the engine, each seal being biased axially away from the end wall. A rotary internal combustion engine and a method of limiting radially outwardly directed oil leaks in a rotary engine are also disclosed.
摘要翻译：一种用于旋转内燃机的定子，其具有内部空腔。每个端壁具有限定在其中的扫气腔，其通过延伸穿过其内表面的相应扫气孔与内腔流体连通，以及限定在其内表面中的与中心孔同心并位于径向上的至少一个环形油封槽向外清扫开口。至少一个环形油封被容纳在每个凹槽中并且从端壁突出到内腔中以与发动机的转子的表面密封接合，每个密封件被轴向偏离远离端壁。还公开了旋转式内燃机和限制旋转式发动机中径向向外指向的油泄漏的方法。

9. 发明申请

US20190003307A1 INTERNAL COMBUSTION ENGINE WITH ROTOR HAVING OFFSET PERIPHERAL SURFACE 审中-公开
公开(公告)号：US20190003307A1
公开(公告)日：2019-01-03
申请号：US16124663
申请日：2018-09-07
申请人： PRATT & WHITNEY CANADA CORP.
发明人： Jean-Gabriel GAUVREAU , David GAGNON-MARTIN , Andre JULIEN
IPC分类号： F01C21/08 , F02B53/08 , F01C21/10 , F02B37/00 , F01C1/22 , F02B53/00
摘要： 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.

10. 发明申请

US20160245154A1 COMPOUND ENGINE ASSEMBLY WITH COMMON INLET 有权
标题翻译：复合发动机总成与通用入口
公开(公告)号：US20160245154A1
公开(公告)日：2016-08-25
申请号：US14806918
申请日：2015-07-23
申请人： Pratt & Whitney Canada Corp.
发明人： Jean THOMASSIN , Sebastien BOLDUC , Bruno VILLENEUVE , Stephane BERUBE , Mike FONTAINE , David GAGNON-MARTIN , Andre JULIEN , Mark CUNNINGHAM , Serge LAFORTUNE , Pierre-Yves LEGARE
IPC分类号： F02B29/04 , F02B61/04 , F02B53/00 , F02B41/10 , F02B33/34
CPC分类号： 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
摘要： 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.
摘要翻译：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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