公开(公告)号：US20240301846A1

公开(公告)日：2024-09-12

申请号：US18262606

申请日：2021-12-13

申请人： Robert Bosch GmbH

发明人： Martin Mueller

IPC分类号： F02M21/02 ,  F02M51/06

CPC分类号： F02M21/0254 ,  F02M21/0257 ,  F02M51/0671

摘要： A gas injector for injecting a gaseous fuel. The gas injector includes a solenoid actuator including an armature, an internal pole, and a coil; a closure element which opens and closes a gas path on a valve seat, the armature being connected to the closure element; a closed lubricant chamber filled with a lubricant and in which the armature is arranged, the lubricant ensuring the armature is lubricated; a flexible sealing element sealing the lubricant chamber in relation to the gas path, and a braking device which is arranged in the lubricant chamber and is configured to brake the closure element during a process of restoring the gas injector from the open into the closed state. The braking device has a brake pin, a damping chamber that is filled with lubricant and is in fluid communication with the lubricant chamber, and a resilient brake element.

公开(公告)号：US20240209819A1

公开(公告)日：2024-06-27

申请号：US18291352

申请日：2022-10-17

申请人： HITACHI ASTEMO, LTD.

发明人： Atsushi OKAMOTO ,  Takaya FUKUNAGA ,  Kazuki NODA ,  Takumi SUZUKI

IPC分类号： F02M61/14 ,  F02M51/06

CPC分类号： F02M61/14 ,  F02M51/061

摘要： In a support structure for a fuel injection valve (I), a snap protrusion (21) snap-engaged with an outer peripheral surface of a fuel introduction cylinder part (4) accepted in a notch (19) is formed on an inner side surface of the notch (19) of the base plate (15). A snap engagement force of the snap protrusion (21) with respect to the fuel introduction cylinder part (4) automatically increases because of an increase in a contact frictional force of the elastic piece (16) against the base plate (15) caused by an increase in a flexural repulsive force of the elastic piece (16), in a mounted state of the fuel injection valve (I) on the engine (E).

公开(公告)号：US11891970B2

公开(公告)日：2024-02-06

申请号：US17869450

申请日：2022-07-20

申请人： MAN Energy Solutions SE

发明人： Johannes Bär ,  Matthias Birner

IPC分类号： F02M51/06

CPC分类号： F02M51/061

摘要： A fuel supply system of an engine designed as a gas engine or dual-fuel engine, has at least one solenoid valve. The solenoid valve is designed for introducing gas fuel into charge air or into a charge air line leading to at least one cylinder of the engine. The respective solenoid valve includes a valve body and an actuator with at least one magnetic plate and with at least one coil for actuating the valve body. The at least one solenoid valve of the solenoid valve is formed out of a corrosion-resistant material or is coated with a corrosion-resistant material.

公开(公告)号：US11788496B2

公开(公告)日：2023-10-17

申请号：US17091791

申请日：2020-11-06

申请人： MRB MACHINING & FERRAMENTARIA LTDA.

发明人： Roderjan Busato

IPC分类号： F02M51/06 ,  F02M61/18

CPC分类号： F02M51/0671 ,  F02M61/18 ,  F02M51/0685 ,  F02M2200/9038

摘要： This invention refers to an optimized structure of a high flow fuel dosing valve applied to automobiles in general, particularly to high power racing cars with the purpose of opening and closing an orifice for fuel injection in internal combustion engines for power gain through an innovative and improved mechanical constructiveness of the coil body (1), coil (2), spring (3), needle (4), guide ring (5), lock (6), seat (7), sieve (8), needle body (9) and o-ring (10), with advantages of greater and faster fuel flow, durability, efficiency and power gain.

公开(公告)号：US11767926B2

公开(公告)日：2023-09-26

申请号：US18011675

申请日：2021-05-19

申请人： Hitachi Astemo, Ltd.

发明人： Masashi Sugaya ,  Takao Miyake ,  Taisuke Sugii ,  Takuya Watai

IPC分类号： F16K31/06 ,  F02M51/06

CPC分类号： F16K31/06 ,  F02M51/06

摘要： To provide a fuel injection device capable of improving waterproof performance of the coil portion. A fuel injection device 1 includes a coil bobbin 51 disposed in a housing 70 and having a bobbin outer peripheral surface 51a that holds a coil 50 and a bobbin inner peripheral surface 51b that is a surface on an opposite side of the bobbin outer peripheral surface 51a, and a first outer peripheral surface 46a and a first outer peripheral surface 10b (guide portion) that come into contact with the bobbin inner peripheral surface 51b. A first space S1 and a second space S2 (internal space) are formed by the first outer peripheral surface 46a and the first outer peripheral surface 10b, and the bobbin inner peripheral surface 51b, and the first space S1 and the second space S2 communicate with a space filled with the connecting portion 80.

公开(公告)号：US11746734B2

公开(公告)日：2023-09-05

申请号：US16110667

申请日：2018-08-23

申请人： Progress Rail Services Corporation

发明人： Rolando Lopez

IPC分类号： F02M63/00 ,  F16K3/24 ,  F02M51/06

CPC分类号： F02M63/0021 ,  F02M51/061 ,  F02M63/0071 ,  F16K3/24

摘要： A shuttle valve for a control valve coupled to an electronic fuel injector is disclosed. The shuttle valve may include a shuttle valve first end including an armature attachment portion operably coupled to an armature of the control valve and a shuttle valve second end opposite the shuttle valve first end defining a sealing portion of the control valve including an annular sealing surface. A valve guide portion may extend axially along a portion of the shuttle valve between the first and second ends. Furthermore, an engagement surface portion may be defined along the valve guide portion that is slidably engaged with a valve bore. Moreover, the shuttle valve may include a non-engagement surface portion defined along the valve guide portion, wherein the non-engagement surface is a non-continuous surface around a circumference of the valve guide portion and wherein the non-engagement surface is interspersed between portions of the engagement surface.

公开(公告)号：US11701726B2

公开(公告)日：2023-07-18

申请号：US17494544

申请日：2021-10-05

申请人： Delavan Inc.

发明人： Brett A. Pfeffer ,  Jason Ryon ,  Pete J. Schnoebelen

IPC分类号： B23K1/00 ,  B23K26/342 ,  F02M61/16 ,  B23K101/00 ,  B23K26/00 ,  F02M51/06 ,  F23R3/32

CPC分类号： B23K1/0018 ,  B23K26/342 ,  F02M51/06 ,  F02M61/168 ,  B23K26/0093 ,  B23K2101/001 ,  B23P2700/13 ,  F02M2200/80 ,  F02M2200/8069 ,  F02M2200/8084 ,  F23D2900/11101 ,  F23R3/32

摘要： A method of making a fluid injector for a gas turbine engine includes depositing material onto a piece of tube stock. The method includes machining the deposited material into a fluid injector component. Depositing can include laser cladding the material onto the piece of tube stock. The method can include placing or flowing braze into a braze joint location between the deposited material and another fluid injector component and forming the braze into a braze joint in the braze joint location.

公开(公告)号：US11692520B2

公开(公告)日：2023-07-04

申请号：US16990398

申请日：2020-08-11

申请人： Caterpillar Inc.

发明人： Cory A. Brown

IPC分类号： F02M47/02 ,  F02M51/06 ,  F02M55/00 ,  F02M61/20 ,  F02M61/04

CPC分类号： F02M51/0632 ,  F02M47/027 ,  F02M51/0628 ,  F02M55/004 ,  F02M55/008 ,  F02M61/045 ,  F02M61/20 ,  F02M2200/28

摘要： A fuel injector includes an injector body and a valve stack within the injector body that includes a valve seat plate. The valve seat plate includes a pressure control passage for controlling fuel injection, and a valve seat positioned fluidly between the pressure control passage and a low-pressure drain. The valve seat plate includes a pressure-limiting annular groove that extends circumferentially around the valve seat and axially inward from a side of the valve seat plate where the valve seat is located. The groove enables deformation in response to pressure differences across the valve seat plate in a manner that limits stress concentrations.

公开(公告)号：US20230087694A1

公开(公告)日：2023-03-23

申请号：US17889532

申请日：2022-08-17

申请人： ZAMA JAPAN KABUSHIKI KAISHA

发明人： Hiroo Ubukata ,  Toshinobu Shimoyama

IPC分类号： F02M51/06 ,  F02M37/00 ,  F02M61/20

摘要： A method to prevent generation of impact noise caused by an armature contacting a stopper due to a return spring and damage of the armature and a stopper without adding a part. Excitation of an electromagnetic coil 4 causes an armature 9 at a standby position to move in a plunger 7 direction so as to move the plunger 7 inserted in a pressurizing chamber 3 in a tip end direction against a return spring 8 to a level such that fuel is not injected from an injection nozzle 2. Fuel supplied from a fuel tank to the pressurizing chamber 3 through a fuel intake pipe 10 and inlet check valve 11 is pressurized and vapor included in the fuel inside the pressurizing chamber 3 is discharged to a fuel return pipeline 14 through a spill valve 12 and return passage 13. Excitation of the electromagnetic coil 4 is stopped, and then the electromagnetic coil 4 is re-excited prior to the armature 9 and plunger 7 reaching the standby position due to the return spring 8, such that the return speed of the armature 9 is reduced and an impact when the armature 9 contacts a stopper 15 is mitigated.

公开(公告)号：US20220381212A1

公开(公告)日：2022-12-01

申请号：US17825806

申请日：2022-05-26

申请人： Stanadyne LLC

发明人： Michael Hornby

IPC分类号： F02M51/06 ,  F02M61/20 ,  F02M21/02

摘要： An electromagnetic fuel injection valve includes a coupling between an armature and the valve member that allows limited relative movement of the valve member and armature in both the opening and closing directions of the valve member. An injector body includes a non-magnetic section to focus magnetic flux and attractive force through the armature and pole. A modular power group reduces the cost of assembly and includes a plastic encapsulated coil that is protected from environmental moisture and corrosion. A valve seat incorporates a valve seal which improves fuel flow past the valve member when the fuel injection valve is in the open position.