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26 条记录 (耗时 0.016 秒)

    Rotary internal combustion engine with removable subchamber insert
    1.
    发明授权
    Rotary internal combustion engine with removable subchamber insert 有权

    公开(公告)号：US11028768B2

    公开(公告)日：2021-06-08

    申请号：US16748016

    申请日：2020-01-21

    申请人： PRATT & WHITNEY CANADA CORP.

    发明人： Bruno Villeneuve ,  Edwin Schulz

    IPC分类号： F02B3/04 ,  F02B53/10 ,  F02B55/16 ,  F02B53/00 ,  F02B19/00 ,  F02B19/12 ,  F02B53/04 ,  F01C21/06 ,  F01C1/344 ,  F01C21/10 ,  F01C1/22 ,  F01C21/18 ,  F01C20/28

    摘要： 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.

    Internal combustion engine with common rail injection
    3.
    发明授权
    Internal combustion engine with common rail injection 有权

    公开(公告)号：US10267217B2

    公开(公告)日：2019-04-23

    申请号：US15938122

    申请日：2018-03-28

    申请人： PRATT & WHITNEY CANADA CORP.

    发明人： Jean Thomassin ,  Edwin Schulz

    IPC分类号： F02M69/46 ,  F02B53/10 ,  F01C1/22 ,  F02B19/10 ,  F02D41/30 ,  F02D41/38 ,  F02B55/14

    摘要： An internal combustion engine includes first and second common rails each having a metering or pressure regulating valve, with the valves settable at different pressure values from one another. Rotors are each sealingly and rotationally received within a respective cavity to define at least one combustion chamber of variable volume. The engine includes first and second fuel injectors for each of the rotors. Each first fuel injector is in fluid communication with the first common rail and each second fuel injector is in fluid communication with the second common rail. A method of feeding fuel in an internal combustion engine is also provided.

    Method of operating an internal combustion engine
    4.
    发明授权
    Method of operating an internal combustion engine 有权

    公开(公告)号：US11306651B2

    公开(公告)日：2022-04-19

    申请号：US17031967

    申请日：2020-09-25

    申请人： PRATT & WHITNEY CANADA CORP.

    发明人： Andre Julien ,  Edwin Schulz

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

    摘要： 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.

    Method of operating an engine having a pilot subchamber at partial load conditions
    5.
    发明授权
    Method of operating an engine having a pilot subchamber at partial load conditions 有权

    公开(公告)号：US10533486B2

    公开(公告)日：2020-01-14

    申请号：US16100611

    申请日：2018-08-10

    申请人： PRATT & WHITNEY CANADA CORP.

    发明人： Edwin Schulz ,  Michael Lanktree

    IPC分类号： F02B19/10 ,  F02D41/04 ,  F02D41/30 ,  F02D41/40 ,  F02B53/02 ,  F02B53/10

    摘要： A method of operating an internal combustion engine having pilot subchambers communicating with main combustion chambers, the internal combustion engine configured in use to deliver a main fuel injection of a maximum quantity of fuel to the main combustion chambers when the internal combustion engine is operated at maximum load. The method includes delivering a pilot fuel injection of at most 10% of the maximum quantity to the pilot subchambers, igniting the pilot fuel injection within the pilot subchambers, directing the ignited fuel from the pilot subchambers to the main combustion chambers, and delivering a main fuel injection of a main quantity of fuel to at least one of the main combustion chambers receiving the ignited fuel, with the main quantity being at most 10% of the maximum quantity.