公开(公告)号：US11168608B2

公开(公告)日：2021-11-09

申请号：US16252837

申请日：2019-01-21

Applicant: Lumenium LLC

Inventor： William Lukaczyk ,  William Anderson ,  Riccardo Meldolesi

IPC: F02B55/14 ,  F01C17/06 ,  F01C21/08 ,  F02B53/06 ,  F02B53/10 ,  F02B55/02 ,  F02B55/08 ,  F02B53/12 ,  F01C1/44 ,  F01C21/00 ,  F01C1/22 ,  F01C21/04 ,  F01C21/06

Abstract: The disclosure provides rotary machines that include, in one embodiment, a rotatable shaft defining a central axis A, the shaft having a first end and a second end. The shaft can have a first hub disposed thereon with a plurality of cavities. At least one contour is slidably received into an arcuate cavity in an exterior surface of the hub. The contour has a convex outer surface that cooperates with an inwardly facing curved surface of a housing to form a working volume.

公开(公告)号：US20210310405A1

公开(公告)日：2021-10-07

申请号：US17262762

申请日：2019-07-25

Applicant: Ravi Shankar Gautam

Inventor： Ravi Shankar Gautam

IPC: F02B53/08 ,  F02B53/10 ,  F02B53/12 ,  F02B55/08 ,  F02B55/14 ,  F02B53/06

Abstract: This patent discloses thrust vectoring ignition chamber engine in which ignition chamber is an annular cylinder having nozzles mounted such that during fuel suction phase they are sealed and during ignition of fuel they are unsealed so that hot jets of ignited fuel escaping through nozzles cause coupled rotatory motion on the ignition chamber. Engine uses specially designed dwell barrel cam mechanism for two phase suction and compression of fuel which facilitates the separation of fuel valve from ignition chamber. Flywheel mounted on extension of ignition chamber functions as output of the engine. Timing of electrically controlled nozzle seal and fuel valve can be adjusted so that each half rotation of flywheel completes three phases namely fuel/air suction, compression and combustion, instead of two rotations as required in engine according to prior art. This engine can give improved power boost by firing for every half revolution.

公开(公告)号：US11028768B2

公开(公告)日：2021-06-08

申请号：US16748016

申请日：2020-01-21

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Bruno Villeneuve ,  Edwin Schulz

IPC: 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

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.

公开(公告)号：US10968820B2

公开(公告)日：2021-04-06

申请号：US16574650

申请日：2019-09-18

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Michael Gaul ,  Andre Julien ,  Bruno Villeneuve

IPC: F02B53/12 ,  F01C1/22 ,  F02B19/10 ,  F02B53/10 ,  F02B53/02 ,  F02M53/02 ,  F02B55/14 ,  F02B53/00 ,  F02B55/08 ,  F02B19/12 ,  F02P19/02

Abstract: A rotary engine includes an insert having a pilot subchamber defined therein and communicating with the internal cavity of the engine. A pilot fuel injector has a tip in communication with the pilot subchamber. An ignition element extends into an element cavity defined through the insert adjacent the pilot subchamber. The element cavity is in communication with the pilot subchamber through a communication opening defined in the insert between the element cavity and the pilot subchamber. The communication opening is smaller than a portion of the ignition element adjacent the communication opening such as to prevent the portion of the ignition element from completely passing through the communication opening upon breaking off of the portion of the ignition element from a remainder of the ignition element. An outer body for a rotary engine and a method of combusting fuel in a rotary engine are also provided.

公开(公告)号：US20210087970A1

公开(公告)日：2021-03-25

申请号：US17112673

申请日：2020-12-04

Applicant: Walter T. Bonin

Inventor： Walter T. Bonin

IPC: F02B53/08 ,  F02B55/08 ,  F02B53/14 ,  F02B53/10 ,  F02B55/02 ,  F02B55/16 ,  F01C3/02 ,  F01C9/00 ,  F01C1/356 ,  F01C11/00

Abstract: An engine includes a housing defining an annular bore and a piston assembly disposed within the annular bore. The engine includes at least one valve configured to oscillate between a first position within the annular bore to allow the piston assembly to travel from a first location proximate to the at least one valve to a second location distal to the at least one valve and a second position to define a combustion chamber relative to the piston assembly at the second location. The engine includes an exhaust gas port disposed in fluid communication with the combustion chamber and a fuel distribution assembly configured to mix fuel from a fuel source and air from an air source into a fuel and air mixture at a location external to the combustion chamber and to deliver the fuel and air mixture to the combustion chamber.

公开(公告)号：US20210062772A1

公开(公告)日：2021-03-04

申请号：US16558847

申请日：2019-09-03

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Sebastien BERGERON ,  Etienne PLAMONDON ,  Jean-Gabriel GAUVREAU ,  Benjamin RENAUD

IPC: F02M63/02 ,  F02M55/02 ,  F02B53/10 ,  F02B61/04

Abstract: 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.

公开(公告)号：US10920662B2

公开(公告)日：2021-02-16

申请号：US16226702

申请日：2018-12-20

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Jean Thomassin

IPC: F02B41/10 ,  F02B37/02 ,  F02B53/00 ,  F02B37/00 ,  F02B37/04 ,  F01C11/00 ,  F02B53/04 ,  F02B53/14 ,  F02C6/12 ,  F02C6/20 ,  F01C1/22 ,  F02B53/10

Abstract: A compound cycle engine having a rotary internal combustion engine, a first turbine, and a second turbine is discussed. The exhaust port of the internal combustion engine is in fluid communication with the flowpath of the first turbine upstream of its rotor. The rotors of the first turbine and of each rotary unit drive a common load. The inlet of the second turbine is in fluid communication with the flowpath of the first turbine downstream of its rotor. The first turbine is configured as a velocity turbine and the first turbine has a pressure ratio smaller than that of the second turbine. A method of compounding a rotary engine is also discussed.

公开(公告)号：US20200232432A1

公开(公告)日：2020-07-23

申请号：US16294160

申请日：2019-03-06

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Sebastien BERGERON ,  Etienne PLAMONDON ,  Jean-Gabriel GAUVREAU ,  Benjamin RENAUD

IPC: F02M55/02 ,  F02M63/02 ,  F02M37/36 ,  F02B53/10 ,  F02M37/30

Abstract: 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.

公开(公告)号：US10697365B2

公开(公告)日：2020-06-30

申请号：US16168045

申请日：2018-10-23

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Jean Thomassin ,  Nigel Davenport ,  Eugene Gekht

IPC: F02B19/10 ,  F02B55/08 ,  F02B53/10 ,  F01C21/06 ,  F01C21/10 ,  F01C21/18 ,  F01C1/22 ,  F02B19/12 ,  F02B53/02 ,  F02B53/12 ,  F01C11/00 ,  F01C20/06 ,  F01C20/10 ,  F01C20/24 ,  F01C21/08 ,  F04C29/00

Abstract: A rotary engine having an insert in a peripheral wall of the stator body, the insert being made of a material having a greater heat resistance than that of the peripheral wall, having a subchamber defined therein and having an inner surface, the subchamber communicating with the cavity through at least one opening defined in the inner surface and having a shape forming a reduced cross-section adjacent the opening, a pilot fuel injector having a tip received in the subchamber, an ignition element having a tip received in the subchamber, and a main fuel injector extending through the stator body and having a tip communicating with the cavity at a location spaced apart from the insert. The subchamber has a volume corresponding to from 5% to 25% of a sum of the minimum volume and the volume of the subchamber. A method of injecting heavy fuel into a Wankel engine is also discussed.

公开(公告)号：US10662774B2

公开(公告)日：2020-05-26

申请号：US15669625

申请日：2017-08-04

Applicant: REGI U.S., INC.

Inventor： John Robertson ,  Paul Porter

IPC: F01C1/344 ,  F01C21/10 ,  F01C21/18 ,  F04C18/344 ,  F04C2/344 ,  F02B53/10 ,  F02B53/04 ,  F02B55/08

Abstract: Prime movers are provided that can include: a pair of cylindrical members about a center rod, a fixed member about the center rod between the pair of cylindrical members; wherein the pair of cylindrical members rotate with the center rod in relation to the fixed member; a housing extending between the cylindrical members; and a plurality of chambers between the opposing bases of the cylindrical members and the fixed member. Methods for rotating members in relation to a fixed member are also provided. The methods can include rotating a pair of cylindrical members in relation to a fixed member about a center rod along a shared axis within a housing extending between the pair of cylindrical members.