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    METHOD OF OPERATING A ROTARY ENGINE
    1.
    发明申请
    METHOD OF OPERATING A ROTARY ENGINE 有权

    公开(公告)号：US20210010414A1

    公开(公告)日：2021-01-14

    申请号：US17031967

    申请日：2020-09-25

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Andre JULIEN ,  Edwin SCHULZ

    IPC: F02B53/02 ,  F02B53/10 ,  F02B19/10 ,  F02D41/00

    Abstract: A method of operating a rotary engine including a rotor engaged to a shaft and rotationally received in a housing to define a plurality of working chambers of variable volume, including delivering a pilot quantity of fuel into a pilot cavity in successive communication with the working chambers, igniting the pilot quantity of fuel within the pilot cavity, and delivering a main quantity of fuel into the working chambers downstream of the successive communication of the pilot cavity with the working chambers, where at least one of the pilot quantity and the main quantity is varied between successive rotations of the shaft.

    INTERNAL COMBUSTION ENGINE WITH PILOT AND MAIN INJECTION
    2.
    发明申请
    INTERNAL COMBUSTION ENGINE WITH PILOT AND MAIN INJECTION 有权
    内燃机与引导和主注射

    公开(公告)号：US20160298530A1

    公开(公告)日：2016-10-13

    申请号：US15188378

    申请日：2016-06-21

    Applicant: Pratt & Whitney Canada Corp.

    Inventor： Edwin SCHULZ ,  Jean THOMASSIN

    IPC: F02B19/10 ,  F02M55/02 ,  F02B53/10

    CPC classification number: F02B19/108 ,  F01C1/22 ,  F02B53/10 ,  F02M55/025 ,  Y02T10/125 ,  Y02T10/17

    Abstract: An internal combustion engine with at least two movable bodies each being sealingly and movably received within a respective internal cavity to define at least one combustion chamber of variable volume. A pilot fuel injector and a main fuel injector are provided for each movable body. A first chamber of a common rail is in fluid communication with each main fuel injector, and a second chamber of the common rail in fluid communication with each pilot fuel injector. A first metering or pressure regulating valve is in fluid communication with the first chamber. A second metering or pressure regulating valve provides selective fluid communication between the first and second chambers; the metering or pressure regulating valves are settable at different pressure values from one another. The movable bodies may be reciprocating pistons. A method of combusting fuel in an internal combustion engine is also provided.

    Abstract translation: 具有至少两个可移动体的内燃机各自密封地且可移动地容纳在相应的内腔内，以限定至少一个具有可变体积的燃烧室。 为每个可移动体设置了先导燃料喷射器和主燃料喷射器。 共轨的第一室与每个主燃料喷射器流体连通，并且共轨的第二室与每个引燃燃料喷射器流体连通。 第一计量或压力调节阀与第一腔室流体连通。 第二计量或压力调节阀在第一和第二腔室之间提供选择性的流体连通; 计量或压力调节阀可以彼此设定在不同的压力值。 可移动体可以是往复活塞。 还提供了一种在内燃机中燃烧燃料的方法。

    ROTARY INTERNAL COMBUSTION ENGINE WITH VARIABLE VOLUMETRIC COMPRESSION RATIO
    3.
    发明申请
    ROTARY INTERNAL COMBUSTION ENGINE WITH VARIABLE VOLUMETRIC COMPRESSION RATIO 有权
    具有可变体积压缩比的旋转内燃机

    公开(公告)号：US20140224207A1

    公开(公告)日：2014-08-14

    申请号：US14152255

    申请日：2014-01-10

    Applicant: Pratt & Whitney Canada Corp.

    Inventor： Jean THOMASSIN ,  Andre JULIEN ,  Edwin SCHULZ ,  Michael LANKTREE

    IPC: F02B53/04

    CPC classification number: F02B53/06 ,  F01C1/22 ,  F01C11/006 ,  F01C20/06 ,  F01C20/10 ,  F01C20/24 ,  F01C21/06 ,  F01C21/08 ,  F01C21/106 ,  F01C21/18 ,  F01C21/183 ,  F02B53/02 ,  F02B53/04 ,  F02B55/16 ,  F02B2053/005 ,  F04C29/0092 ,  F04C2240/80

    Abstract: A method and apparatus for controlling an air input in a rotary engine, including selectively controlling a plurality of inlet ports communicating with an internal combustion cavity of the engine, the ports located serially downstream of the exhaust port relative direction of a revolution of a rotor of the engine. The inlet ports are controlled to alter air intake at various engine operational stages, such as start up, idle, etc., to allow for varying operational requirements to be met. For example: when a power demand on the engine lower than a predetermined threshold, control may be effected by opening a primary inlet port and closing a secondary inlet port; and, when the power demand exceeds the predetermined threshold, control may be effected by opening the primary inlet port and opening the secondary inlet port, the secondary inlet port being located such as to be in communication with the exhaust port throughout portions of the revolution of the engine to purge exhaust gases of the engine.

    Abstract translation: 一种用于控制旋转发动机中的空气输入的方法和装置，包括选择性地控制与发动机的内部燃烧腔相通的多个入口，排气口的下游侧的端口相对于转子转速的相对方向 引擎。 入口端口被控制以改变各种发动机操作阶段（例如起动，空转等）的进气口，以允许满足不同的操作要求。 例如：当发动机上的功率需求低于预定阈值时，可以通过打开主入口并关闭次级入口来实现控制; 并且当功率需求超过预定阈值时，可以通过打开主入口并打开次级入口来进行控制，次级入口位于与排气口连通的部分， 发动机来净化发动机的废气。

    ROTARY INTERNAL COMBUSTION ENGINE WITH REMOVABLE SUBCHAMBER INSERT
    5.
    发明申请
    ROTARY INTERNAL COMBUSTION ENGINE WITH REMOVABLE SUBCHAMBER INSERT 审中-公开
    旋转式内燃机带有可拆卸的底座插件

    公开(公告)号：US20160252010A1

    公开(公告)日：2016-09-01

    申请号：US15153277

    申请日：2016-05-12

    Applicant: Pratt & Whitney Canada Corp.

    Inventor： Bruno VILLENEUVE ,  Edwin SCHULZ

    IPC: F02B53/04 ,  F02B55/16 ,  F02B53/10

    Abstract: A rotary engine having an outer body having an internal cavity with a peripheral wall having an insert opening defined therethrough in communication with the internal cavity, and a plurality of coolant passages defined through the peripheral wall in proximity of the insert opening, a rotor body rotatable within the internal cavity, and an insert removably received in the insert opening of the peripheral wall, the insert having a subchamber defined therein communicating with the internal cavity, with a minimum width of the insert opening being at least 0.75 inches. An outer body for a rotary engine and a method of inspecting in an internal cavity in an outer body of a rotary engine are also discussed; also, a rotary engine including a fuel injector having a tip received in the injector hole of the peripheral wall without protruding in the insert opening.

    Abstract translation: 一种旋转发动机，其具有内部空腔，所述外部主体具有外围壁，所述外部壁具有与所述内部空腔相连通的所述插入开口，以及限定在所述插入开口附近的所述周壁的多个冷却剂通道， 在内部空腔内，以及可移除地容纳在周壁的插入开口中的插入件，插入件具有限定在其中的与室内连通的子室，插入开口的最小宽度为至少0.75英寸。 还讨论了用于旋转发动机的外体和在旋转发动机的外体中的内腔中检查的方法; 还有一种旋转发动机，其包括燃料喷射器，其具有容纳在周壁的喷射器孔中的尖端，而不突出在插入开口中。

    INTERNAL COMBUSTION ENGINE WITH PILOT AND MAIN INJECTION
    6.
    发明申请
    INTERNAL COMBUSTION ENGINE WITH PILOT AND MAIN INJECTION 有权
    内燃机与引导和主注射

    公开(公告)号：US20140261293A1

    公开(公告)日：2014-09-18

    申请号：US13796216

    申请日：2013-03-12

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Edwin SCHULZ ,  Jean THOMASSIN

    IPC: F02B53/10

    CPC classification number: F02B19/108 ,  F01C1/22 ,  F02B53/10 ,  F02M55/025 ,  Y02T10/125 ,  Y02T10/17

    Abstract: An internal combustion engine with at least two rotatable bodies each defining at least one combustion chamber of variable volume and, for each rotatable body: a pilot subchamber, a pilot fuel injector having a tip in communication with the pilot subchamber, an ignition element positioned to ignite fuel within the pilot subchamber, and a main fuel injector spaced apart from the pilot fuel injector. The engine includes a common first fuel conduit in fluid communication with each main fuel injector, and a common second fuel conduit in fluid communication with each pilot fuel injector. First and second pressure regulating mechanisms which are settable at different pressure values from one another respectively regulate a fuel pressure in the first and second conduits. A method of combusting fuel in an internal combustion engine is also provided.

    Abstract translation: 一种具有至少两个可旋转体的内燃机，每个至少两个旋转体限定至少一个具有可变体积的燃烧室，并且对于每个可旋转体，导引子室，具有与导向子室连通的尖端的引燃燃料喷射器，点火元件， 在飞行员子舱内点燃燃料，以及与引燃燃料喷射器间隔开的主燃料喷射器。 发动机包括与每个主燃料喷射器流体连通的公共第一燃料管道，以及与每个引燃燃料喷射器流体连通的公共第二燃料管道。 可在彼此不同压力值下设定的第一和第二压力调节机构分别调节第一和第二管道中的燃料压力。 还提供了一种在内燃机中燃烧燃料的方法。

    SYSTEM FOR PILOT SUBCHAMBER TEMPERATURE CONTROL
    10.
    发明申请
    SYSTEM FOR PILOT SUBCHAMBER TEMPERATURE CONTROL 审中-公开
    引导次级温度控制系统

    公开(公告)号：US20140251258A1

    公开(公告)日：2014-09-11

    申请号：US13789989

    申请日：2013-03-08

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Jean THOMASSIN ,  Edwin SCHULZ

    IPC: F02B19/12

    CPC classification number: F02B19/12 ,  F02B19/1085 ,  F02B53/10 ,  F02D35/025 ,  F02D41/045 ,  F02D41/3094 ,  F02D41/403 ,  F02D2041/141 ,  F02D2200/501 ,  Y02T10/17

    Abstract: There is described a system and method for controlling a temperature in the subchamber of a rotary engine. At least one first measurement of at least one engine operating parameter and a second measurement indicative of a present temperature in the subchamber are received. A setpoint for the temperature in the subchamber is computed from the at least one first measurement. In response to the second measurement, at least one control signal indicative of a request to adjust the present temperature towards the setpoint is generated and sent to the engine.

    Abstract translation: 描述了一种用于控制旋转发动机的子室中的温度的系统和方法。 接收至少一个至少一个发动机操作参数的第一测量和指示子室中的当前温度的第二测量。 从至少一个第一测量计算子室中温度的设定值。 响应于第二测量，产生指示将当前温度调节到设定点的请求的至少一个控制信号并发送到发动机。

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