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    ROTARY ENGINE WITH ROTOR LAND
    4.
    发明申请
    ROTARY ENGINE WITH ROTOR LAND 有权
    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

    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。

    GEARBOX POSITIONING DEVICE
    5.
    发明申请
    GEARBOX POSITIONING DEVICE 有权
    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

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Marcin REJMAN ,  Louis BRILLON ,  David GAGNON-MARTIN

    IPC: F16M13/02

    CPC classification number: F02C7/32 ,  B64D2027/266 ,  F02C7/20 ,  F05D2260/30

    Abstract: 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.

    Abstract translation: 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。

    APEX SEAL ARRANGEMENT FOR ROTARY INTERNAL COMBUSTION ENGINE
    6.
    发明申请
    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

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Johnny VINSKI ,  David GAGNON-MARTIN ,  Jean-Gabriel GAUVREAU ,  Roger HUPPE

    IPC: F01C19/10 ,  F01C19/02

    Abstract: 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.

    METHOD AND SYSTEM FOR NON-FUNCTIONAL COMBUSTION CHAMBER DETECTION
    7.
    发明申请
    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

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Michael LANKTREE ,  David GAGNON-MARTIN ,  Bruno VILLENEUVE

    IPC: F02D41/22 ,  F02B53/10 ,  F02B53/02 ,  F02D41/40 ,  F02D41/38

    Abstract: 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.

    Rotary Internal Combustion Engine with Static Oil Seal
    8.
    发明申请
    Rotary Internal Combustion Engine with Static Oil Seal 有权
    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

    Applicant: Pratt & Whitney Canada Corp.

    Inventor： Jean THOMASSIN ,  Jean-Gabriel GAUVREAU ,  David GAGNON-MARTIN ,  Bruno VILLENEUVE

    IPC: F02B55/08

    CPC classification number: F02B55/08 ,  F02B2053/005

    Abstract: 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.

    Abstract translation: 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。

    INTERNAL COMBUSTION ENGINE WITH ROTOR HAVING OFFSET PERIPHERAL SURFACE
    9.
    发明申请
    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

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Jean-Gabriel GAUVREAU ,  David GAGNON-MARTIN ,  Andre JULIEN

    IPC: F01C21/08 ,  F02B53/08 ,  F01C21/10 ,  F02B37/00 ,  F01C1/22 ,  F02B53/00

    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.

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