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公开(公告)号：US11230979B2
公开(公告)日：2022-01-25
申请号：US16296988
申请日：2019-03-08
发明人： David Waddleton , Benjamin Renaud , Sebastien Bergeron , Etienne Plamondon , Jean-Gabriel Gauvreau
摘要： A liquid fuel system for an aircraft engine includes a first fuel supply conduit hydraulically connected to a fuel source, a second fuel supply conduit hydraulically connected to the engine, a fuel return conduit hydraulically connected to the second fuel supply conduit, and a fuel pump. The fuel pump has a main inlet hydraulically connected to the first fuel supply conduit, an outlet hydraulically connected to the second fuel supply conduit, and an intermediate inlet hydraulically connected to the fuel return conduit. The intermediate inlet is located between the main inlet and the outlet and in use has a pressure between the main inlet pressure and the outlet pressure. A method of supplying a liquid fuel to an aircraft engine is also described.
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公开(公告)号：US12006882B1
公开(公告)日：2024-06-11
申请号：US18331687
申请日：2023-06-08
CPC分类号： F02C9/40 , F02B53/02 , F02B53/10 , F02B2053/005 , F05D2220/323
摘要： A rotary engine, has: an outer body defining a rotor cavity; a rotor within the rotor cavity and defining at least one chamber; a pilot subchamber defined by the outer body and having an outlet in communication with the rotor cavity; a main fuel source of a heavy fuel; an alternative fuel source of an alternative fuel; a main injector having a tip in communication with the rotor cavity at a location spaced apart from the outlet of the pilot subchamber, the main injector selectively fluidly connectable to the main fuel source or to the alternative fuel source; and a controller configured for: determining that the rotary engine is in a vicinity of a city or an airport; and operating the main injector in a first configuration in which the main injector fluidly connects the alternative fuel source to the rotor cavity while disconnecting the main fuel source.
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公开(公告)号：US20240141838A1
公开(公告)日：2024-05-02
申请号：US17978603
申请日：2022-11-01
发明人： Etienne Plamondon
IPC分类号： F02C9/20
CPC分类号： F02C9/20 , F05D2220/323 , F05D2270/301 , F05D2270/303 , F05D2270/304 , F05D2270/3061
摘要： A control method is provided for an engine. During this control method, a lambda target parameter indicative of a ratio between a stoichiometric air-to-fuel ratio and an actual air-to-fuel ratio is determined. A control signal is determined using the lambda target parameter. A component of the engine is operated based on the control signal to regulate airflow within a compressor section of the engine.
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公开(公告)号：US11174732B1
公开(公告)日：2021-11-16
申请号：US16872937
申请日：2020-05-12
IPC分类号： F01C21/04 , F02M47/02 , F02B55/08 , F02B55/16 , F02M57/02 , F02B53/00 , F02M59/46 , F02M59/10
摘要： A rotary internal combustion engine (ICE) has: a housing defining a rotor cavity; a rotor received within the rotor cavity to define working chambers of variable volume around the rotor, the rotor having circumferentially spaced peripheral apex seals biased radially outwardly in sliding engagement against a peripheral wall of the housing to separate the working chambers from one another, the housing having a fluid passage defined therethrough and opening into an inner surface of the peripheral wall; and an injector having a lubricant inlet hydraulically connected to a lubricant source, an actuation inlet hydraulically connected to a source of an actuation fluid, and a lubricant outlet, the injector having an open state in which the lubricant outlet is in fluid flow communication with the fluid passage upon the actuation fluid received within the injector and a closed state in which the lubricant outlet is disconnected from the fluid passage.
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公开(公告)号：US11125185B2
公开(公告)日：2021-09-21
申请号：US16263113
申请日：2019-01-31
摘要： There is disclosed an engine assembly for an aircraft, including: a combustion engine including a coolant circuit in heat exchange relationship with a heat sink, the heat sink including a heat exchanger and at least one component, the at least one component having a main function that differs from thermal exchange. A method of operating the system is also disclosed.
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公开(公告)号：US20240141826A1
公开(公告)日：2024-05-02
申请号：US17976498
申请日：2022-10-28
CPC分类号： F02B55/02 , F01C1/22 , F01C21/08 , F02B2053/005
摘要： A rotary engine rotor and a method for supplying rotary engine rotors are provided. The rotary engine rotor has a center axis, a rotor body, a plurality of peripheral surfaces, and a plurality of recess members. The rotor body has a central bore that extends along the center axis. The plurality of peripheral surfaces are disposed around an exterior perimeter of the rotor body. Each of the plurality of recess members are disposed in a respective one of the plurality of peripheral surfaces. Each recess member includes an interior cavity open to an exterior of the rotor.
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公开(公告)号：US11092126B2
公开(公告)日：2021-08-17
申请号：US16558847
申请日：2019-09-03
摘要： A method of operating an aircraft engine of an aircraft, the aircraft engine having a common-rail fuel injection system for injecting fuel into a combustion chamber of the aircraft engine, including: pressurizing fuel for circulation through the common-rail injection system; circulating a portion of the pressurized fuel through a motive flow inlet of an ejector pump; and entraining a flow through the ejector pump with the portion of the pressurized fuel circulating through the motive flow inlet.
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公开(公告)号：US10738749B1
公开(公告)日：2020-08-11
申请号：US16294160
申请日：2019-03-06
摘要： There is disclosed a method of de-icing a component of an engine assembly having a common-rail fuel injection system, including: pressurizing fuel to circulate the fuel through the common-rail injection system; drawing a portion of the fuel upstream of common-rail injectors of the common-rail injection system and directing a remainder of the fuel toward the common-rail injectors; and transferring heat from the drawn portion of the fuel to the component.
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公开(公告)号：US10570789B2
公开(公告)日：2020-02-25
申请号：US15185544
申请日：2016-06-17
发明人： Edwin Schulz , Etienne Plamondon , Jean Thomassin
摘要： A rotary internal combustion engine with a housing having a fluid passage defined therethrough opening into a portion of its inner surface engaging each peripheral or apex seal of the rotor. An injector has an inlet for fluid communication with a pressurized lubricant source and a selectively openable and closable outlet in fluid communication with the fluid passage for delivering the pressurized lubricant to each seal through the fluid passage. A housing for a Wankel engine and a method of lubricating peripheral seals of a rotor in an internal combustion engine are also discussed.
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公开(公告)号：US12065978B2
公开(公告)日：2024-08-20
申请号：US17978603
申请日：2022-11-01
发明人： Etienne Plamondon
IPC分类号： F02C9/20
CPC分类号： F02C9/20 , F05D2220/323 , F05D2270/301 , F05D2270/303 , F05D2270/304 , F05D2270/3061
摘要： A control method is provided for an engine. During this control method, a lambda target parameter indicative of a ratio between a stoichiometric air-to-fuel ratio and an actual air-to-fuel ratio is determined. A control signal is determined using the lambda target parameter. A component of the engine is operated based on the control signal to regulate airflow within a compressor section of the engine.
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