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公开(公告)号：US11608798B2
公开(公告)日：2023-03-21
申请号：US16958101
申请日：2018-07-25
发明人： Shintaro Shuto , Satoshi Yamada , Kazuro Hotta , Tomohiro Noguchi , Kenichi Iizuka , Yuki Nakamura
摘要： The purpose of the present invention is to provide a gas engine and a ship provided with the same, the gas engine making it is possible to ensure a distance that enables fuel and an oxidizing agent to mix, and to evenly mix the oxidizing agent and the fuel even if the flow rate of gas traveling towards intake pipes varies. A gas engine (1) comprises: an intake passage (10) through which a gas flows; a plurality of intake pipes (12A, 12B) where the intake passage (10) branches apart at a branching section (14) that is downstream in the gas flow direction, the intake pipes opening to a cylinder (16) at the downstream end; and a fuel injection means (31) that injects fuel into the intake passage (10). The fuel injection means (31) is provided upstream of the branching section (14) in the gas flow direction, and injects varying quantities of fuel into the plurality of intake pipes (12A, 12B).
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公开(公告)号：US20230072707A1
公开(公告)日：2023-03-09
申请号：US17985209
申请日：2022-11-11
发明人： Katsuhiro Nishimura , Koichi Hirose
摘要： An engine including a main fuel injection valve, a pilot fuel injection valve, a liquid fuel supply rail pipe, and a pilot fuel supply rail pipe. The main fuel injection valve supplies liquid fuel from the liquid fuel supply rail pipe to a combustion chamber during combustion in a diffusion combustion system. The pilot fuel injection valve supplies pilot fuel from the pilot fuel supply rail pipe to the combustion chamber in order to ignite gaseous fuel during combustion in a premixed combustion system. The liquid fuel supply rail pipe is disposed at one side of an imaginary vertical plane including an axis of a crank shaft. The pilot fuel supply rail pipe is disposed at the side of the imaginary vertical plane at which the liquid fuel supply rail pipe is disposed.
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3.发明授权公开(公告)号：US11428196B1
公开(公告)日：2022-08-30
申请号：US17538054
申请日：2021-11-30
申请人： Caterpillar Inc.
摘要： A fuel system for an internal combustion engine includes an actuation train having a cam follower, a pushrod, a rocker arm, and a camshaft having a cam lobe rotatable in contact with the cam follower according to an ascending ramp phasing, a peak phasing, and a descending ramp phasing. The fuel system further includes a fuel injector including an electrically actuated spill valve. A fueling control unit is in communication with the spill valve and structured to close the spill valve during the ascending ramp phasing, such that a plunger cavity pressure is increased to oppose a plunger-advancement inertia of the actuation train. Related methodology and control logic is also disclosed.
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公开(公告)号：US11415095B2
公开(公告)日：2022-08-16
申请号：US16984540
申请日：2020-08-04
申请人： DENSO CORPORATION
发明人： Atsushi Kondou , Tomonori Kamiya , Yoshinori Okuno
摘要： A fuel injection valve includes a nozzle portion for injecting fuel, a fuel inlet port, a fuel supply main passage for supplying the fuel from the fuel inlet port to the nozzle portion, a pressure sensor for detecting fuel pressure in the fuel supply main passage, and a fuel introduce passage for supplying the fuel from the fuel supply main passage to the pressure sensor. The fuel supply main passage includes a first fuel supply passage extending in a first direction from the fuel inlet port to the pressure sensor and a second fuel supply passage extending in a second direction from the pressure sensor to the nozzle portion.
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公开(公告)号：US20220120226A1
公开(公告)日：2022-04-21
申请号：US17562966
申请日：2021-12-27
发明人： Katsuhiro Nishimura , Koichi Hirose
摘要： An engine including a main fuel injection valve, a pilot fuel injection valve, a liquid fuel supply rail pipe, and a pilot fuel supply rail pipe. The main fuel injection valve supplies liquid fuel from the liquid fuel supply rail pipe to a combustion chamber during combustion in a diffusion combustion system. The pilot fuel injection valve supplies pilot fuel from the pilot fuel supply rail pipe to the combustion chamber in order to ignite gaseous fuel during combustion in a premixed combustion system. The liquid fuel supply rail pipe is disposed at one side of an imaginary vertical plane including an axis of a crank shaft. The pilot fuel supply rail pipe is disposed at the side of the imaginary vertical plane at which the liquid fuel supply rail pipe is disposed.
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公开(公告)号：US11248575B1
公开(公告)日：2022-02-15
申请号：US17024974
申请日：2020-09-18
申请人： Caterpillar Inc.
摘要： A fuel injector body includes a body that includes an at least partially annular configuration defining a longitudinal axis, a circumferential direction, and a radial direction. A first counterbore and a first cavity extend from the first end toward the second end, and an external interface portion including a sealing surface is disposed axially between the first end and a shoulder. The first cavity defines a bottom surface and a peripheral surface, and the body also includes a leak passage extending from the bottom surface that is in communication with the first cavity.
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公开(公告)号：US20210262427A1
公开(公告)日：2021-08-26
申请号：US17254028
申请日：2019-05-30
申请人： RKLAB AG
发明人： Riccardo MELDOLESI , Ron KUCKLER , Daniel EASTWOOD , Mike CRANFIELD , Mark CLEMENTS , Anthony PERKINS
摘要： An injector nozzle having a first part having a stem and a flange, the flange having a flange surface, a body including a wall defining a hole, an annular nozzle ring having a first surface and a second surface wherein the first surface and/or the flange surface include a plurality of grooves, the stem being received in the hole, the first part being secured to the body to secure the nozzle ring in place such that the first surface engages the flange surface, the second surface engages the body, and the plurality of grooves define a plurality of injector holes.
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公开(公告)号：US20210108602A1
公开(公告)日：2021-04-15
申请号：US16932269
申请日：2020-07-17
申请人： Vianney RABHI
发明人： Vianney RABHI
摘要： The hydraulic injection system (100) with cam comprises an injection valve (50) housed in a tubular injection nozzle (54), a gap being formed between a valve stem (51) of said valve (50) and the inner surface of the tubular injection nozzle (54) to allow an injectable fluid (58) coming from pressurizing means (10) to flow, while a receiver piston (62) fixed with respect to said valve (50) receives on the one hand the pressure of the injectable fluid (58) to hold said valve (50) closed, and on the other hand, the pressure of a hydraulic fluid (60) to open said valve (50), an injection cam (67) being capable to move said receiver piston (62) via an emitter piston (69) and said hydraulic fluid (60).
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公开(公告)号：US10961967B1
公开(公告)日：2021-03-30
申请号：US16551652
申请日：2019-08-26
申请人： Microfabrica Inc.
发明人： Gregory P. Schmitz , Ming Ting Wu , Uri Frodis , Eli Baldwin , Gabriel Jacobsohn
摘要： Embodiments are directed to fuel injectors for internal combustion engines (e.g. engines with reciprocating pistons and with compression-ignition or spark-ignition, Wankel engines, turbines, jets, rockets, and the like) and more particularly to improved nozzle configurations for use as part of such fuel injectors. Other embodiments are directed to enabling fabrication technology that can provide for formation of nozzles with complex configurations and particularly for technologies that form structures via multiple layers of selectively deposited material or in combination with fabrication from a plurality of layers where critical layers are planarized before attaching additional layers thereto or forming additional layers thereon. Other embodiments are directed to methods and apparatus for integrating such nozzles with injector bodies.
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公开(公告)号：US10794348B2
公开(公告)日：2020-10-06
申请号：US16333522
申请日：2017-08-09
摘要： A fuel injection valve includes: a valve seat member to which the valve seat is formed; a welding portion between the valve seat member and the cylindrical member, which is provided on the base end side of the stepped surface, the valve seat member being assembled to be press-fit in the cylindrical member so that a tip end side abutment pressure between an inner circumference surface of the cylindrical member, and a tip end side outer circumference surface portion of the valve seat member which is on the tip end side of the stepped surface is smaller than a base end side abutment pressure between the inner circumference surface of the cylindrical member, and a base end side outer circumference surface portion of the valve seat member which is on the base end side of the stepped surface portion.
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