-
公开(公告)号：US09828906B2
公开(公告)日：2017-11-28
申请号：US15363099
申请日：2016-11-29
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Jean Thomassin , Andre Julien , Edwin Schulz , Michael Lanktree
IPC: F02B53/00 , F02B53/06 , F01C1/22 , F01C20/06 , F01C20/10 , F01C20/24 , F01C21/08 , F01C21/10 , F01C21/18 , F02B53/04 , F02B53/02 , F02B55/16 , F01C11/00 , F01C21/06 , F04C29/00
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 of controlling an air intake flow in a rotary engine having primary and secondary inlet ports, including positioning the secondary inlet port rearwardly of the primary inlet port and forwardly of the exhaust port along a direction of a revolution of the rotor, and controlling air intake flows communicating between an air source and the primary and secondary inlet ports. During engine start-up, a primary valve is closed to prevent the intake air flow between the primary inlet port and the air source and a secondary valve is opened to allow the intake air flow between the secondary inlet port and the air source. A rotary engine defining different compression ratios through actuation of a valve is also discussed.
-
公开(公告)号：US11261781B2
公开(公告)日：2022-03-01
申请号：US16717422
申请日：2019-12-17
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Serge Dussault , Andre Julien , Michael Lanktree , Edwin Schulz
IPC: F04C29/12 , F04C18/22 , F02B55/14 , F01C1/22 , F01C11/00 , F02B55/02 , F04B39/02 , F04B39/12 , F02B55/08 , F02B53/08 , F01C20/18 , F01C21/08 , F01C21/18 , F01C21/10 , F02B53/00 , F01C21/00
Abstract: A rotary internal combustion engine including a rotor assembly where at least a first and a second of the combustion chambers have unequal theoretical volumetric ratios. Also, a rotary internal combustion engine including first and second rotor assemblies where at least one of the combustion chambers of the first rotor assembly and at least one of the combustion chambers of the second rotor assembly have unequal effective volumetric compression ratios and/or unequal effective volumetric expansion ratios.
-
公开(公告)号：US10801394B2
公开(公告)日：2020-10-13
申请号：US15825691
申请日：2017-11-29
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Serge Dussault , Andre Julien , Michael Lanktree , Edwin Schulz
Abstract: A rotary engine including at least two pilot subchambers each in parallel fluid communication with the internal cavity, so that each pilot subchamber is in fluid communication with the combustion chambers as the rotor rotates. Each of the at least two pilot subchambers in fluid communication with a corresponding pilot fuel injector. At least one ignition source is configured for igniting fuel in the pilot subchambers. A compound engine assembly and a method of combusting fuel in a rotary engine are also discussed.
-
公开(公告)号：US10539065B2
公开(公告)日：2020-01-21
申请号：US15624257
申请日：2017-06-15
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Andre Julien , Edwin Schulz , Michael Lanktree , Serge Dussault
Abstract: A method of operating an engine assembly receiving fuel, including admitting atmospheric air at a temperature T1 through an inlet of a compressor having a pressure ratio of PRGT, compressing the air in the compressor, cooling the compressed air from the compressor through an intercooler to cool the air from a temperature TBIC to a temperature TAIC, delivering the cooled compressed air from the intercooler to an inlet of an intermittent internal combustion engine having an effective volumetric compression ratio rVC, and further compressing the air in the intermittent internal combustion engine before igniting the fuel, where ( PR GT ) a ( r VC ) b ( T AIC T BIC ) ( T 1 T A )
-
公开(公告)号：US20190211741A1
公开(公告)日：2019-07-11
申请号：US16357840
申请日：2019-03-19
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Jean Thomassin , Edwin Schulz
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, a second measurement of the actual value of a temperature in the subchamber, and at least one third measurement of at least one aircraft operating parameter are received. A setpoint for the temperature in the subchamber is determined from the at least one first measurement and the at least one third measurement. At least one control signal is output to the engine for adjusting the actual value of the temperature in the subchamber towards the setpoint.
-
Patent Agency Ranking
公开(公告)号：US09957885B2
公开(公告)日：2018-05-01
申请号：US15707000
申请日：2017-09-18
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Jean Thomassin , Edwin Schulz
CPC classification number: F02B53/10 , F01C1/22 , F02B19/108 , F02B55/14 , F02B2275/32 , F02D41/3094 , F02D41/3827 , F02D41/3836 , Y02T10/125 , Y02T10/142 , Y02T10/17
Abstract: 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 for each of the rotors a pilot subchamber in communication with the respective cavity, a pilot fuel injector in communication with the pilot subchamber, an ignition element positioned to ignite fuel within the pilot subchamber, and a main fuel injector in communication with the respective cavity at a location spaced apart from the pilot subchamber. Each main fuel injector is in fluid communication with the first common rail and each pilot fuel injector is in fluid communication with the second common rail. A method of combusting fuel in an internal combustion engine is also provided.
-
公开(公告)号：US09708966B2
公开(公告)日：2017-07-18
申请号：US15188378
申请日：2016-06-21
Applicant: Pratt & Whitney Canada Corp.
Inventor： Edwin Schulz , Jean Thomassin
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.
-
18.发明授权公开(公告)号：US09540992B2
公开(公告)日：2017-01-10
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: F02B53/00 , F02B53/06 , F02B53/04 , F01C1/22 , F01C20/06 , F01C20/10 , F01C20/24 , F01C21/18 , F01C11/00 , F01C21/06 , F01C21/08 , F01C21/10 , F04C29/00
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。
-
公开(公告)号：US09399947B2
公开(公告)日：2016-07-26
申请号：US13796216
申请日：2013-03-12
Applicant: Pratt & Whitney Canada Corp.
Inventor： Edwin Schulz , Jean Thomassin
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。
-
公开(公告)号：US11187143B2
公开(公告)日：2021-11-30
申请号：US16720059
申请日：2019-12-19
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Andre Julien , Edwin Schulz , Michael Lanktree , Serge Dussault
IPC: F02B29/04 , F02B37/00 , F02B37/10 , F02B39/04 , F02B41/10 , F02B53/04 , F02B53/08 , F02B61/04 , F01C1/22 , F02D41/00 , F02B53/00
Abstract: A method of operating an engine assembly receiving fuel, including admitting atmospheric air at a temperature T1 through an inlet of a compressor having a pressure ratio of PRGT, compressing the air in the compressor, cooling the compressed air from the compressor through an intercooler to cool the air from a temperature TBIC to a temperature TAIC, delivering the cooled compressed air from the intercooler to an inlet of an intermittent internal combustion engine having an effective volumetric compression ratio rVC, and further compressing the air in the intermittent internal combustion engine before igniting the fuel, where ( PR GT ) a ( r VC ) b ( T AIC T BIC ) ( T 1 T A )
-
-
-
-
-
-
-
-
-
Search Results
26
records
(took 0.034 seconds)
