公开(公告)号：US5215060A

公开(公告)日：1993-06-01

申请号：US730676

申请日：1991-07-16

Applicant: Kenneth H. Klopfer ,  William W. Kelly

Inventor： Kenneth H. Klopfer ,  William W. Kelly

IPC: F02M41/14 ,  F02M53/00 ,  F02M55/00 ,  F02M55/02 ,  F02M55/04 ,  F02M59/36 ,  F02M59/42 ,  F02M59/46 ,  F02M63/00

CPC classification number: F02M53/00 ,  F02M41/1405 ,  F02M41/1411 ,  F02M41/1427 ,  F02M55/00 ,  F02M55/007 ,  F02M55/02 ,  F02M55/04 ,  F02M59/366 ,  F02M59/42 ,  F02M59/46 ,  F02M59/462 ,  F02M59/466 ,  F02M2200/04 ,  F02M2200/315 ,  F02M2200/40

Abstract: A rotary distributor fuel injection pump having a fuel system for circulating fuel continuously from a fuel supply pump via an end chamber at one end of the distributor rotor and an annular fuel chamber surrounding the distributor rotor to a return line and a pressure regulator in the return line for regulating the upstream pressure and continuously returning excess fuel to the supply pump. An electrical control valve is selectively opened during the pumping strokes to spill fuel into the end chamber and terminate the fuel injection event. An auxiliary passage in the rotor resets the pressure in the distributor outlets to approximately the same initial pressure. In an air purging mode of operation, the control valve is held closed until after the distributor port moves out of registry with each distributor outlet to prevent back flow to the end chamber. A retraction shuttle valve in each distributor outlet employs a short closure spring which permits the retraction shuttle to float freely in an unloaded spring gap to equalize the upstream and downstream pressures.

公开(公告)号：US4884545A

公开(公告)日：1989-12-05

申请号：US215607

申请日：1988-07-06

Applicant: Christian Mathis

Inventor： Christian Mathis

IPC: F02M51/04 ,  F02D41/30 ,  F02D41/38 ,  F02M37/18 ,  F02M41/08 ,  F02M47/02 ,  F02M59/02 ,  F02M59/20 ,  F02M59/34 ,  F02M63/00 ,  F02M63/02 ,  F04B49/22

CPC classification number: F02D41/3845 ,  F02M47/02 ,  F02M59/205 ,  F02M59/34 ,  F02M63/0007 ,  F02M63/0215 ,  F02M63/0225 ,  F04B49/225 ,  F02D2200/0602 ,  F02D2250/31 ,  F02D41/3082 ,  F02D41/3809 ,  F02M2200/40

Abstract: A high-pressure, continuous-delivery piston pump, controlled as a function of engine speed and load, supplies fuel to an accumulator supplying injectors. On the intake side of the pump, there is provided a throttle for metering the amount of fuel supplied by the pump. Via operating signals, the throttle is regulated by an electronic control device in such a manner as to supply the pump and pressurize only the amount of fuel strictly required for operating the injectors and the engine, thus eliminating any energy losses caused by fuel feedback to the tank, and drastically reducing fuel consumption.

公开(公告)号：US4168688A

公开(公告)日：1979-09-25

申请号：US689327

申请日：1976-05-24

Applicant: Hansueli Bart

Inventor： Hansueli Bart

IPC: F02B3/06 ,  F02M41/06 ,  F02M41/16 ,  F02M45/04 ,  F02M63/00 ,  F02M63/02 ,  F02M39/00 ,  F02M57/00

CPC classification number: F02M63/0225 ,  F02M41/06 ,  F02M41/16 ,  F02M45/04 ,  F02M63/0007 ,  F02M63/0008 ,  F02B2275/14 ,  F02B3/06 ,  F02M2200/40 ,  Y02T10/123

Abstract: A pilot fuel injection system for a diesel engine. One embodiment of the system includes a high pressure fuel pump, an accumulator, a mechanical fuel distributor, a pair of fuel metering valves for each cylinder of the engine, a fuel injection nozzle for each cylinder, and an electronic logic for controlling actuation of the metering valves; in a second system embodiment a pair of the metering valves supply fuel to all of the engine cylinders. Several embodiments of the metering valve are disclosed, some of which allows exclusion of the mechanical fuel distributor from the system. All of the disclosed metering valves meter fuel from the pump to the nozzles by traversing a passage in a valving member across another passage. Motion is imparted to the valving member by electromagnetic means which are energized by the electronic logic. The logic is responsive to engine speed and throttle position.

Abstract translation: 一种用于柴油发动机的先导燃油喷射系统。 该系统的一个实施例包括高压燃料泵，蓄能器，机械燃料分配器，用于发动机的每个气缸的一对燃料计量阀，用于每个气缸的燃料喷射喷嘴，以及用于控制致动的电子逻辑 计量阀; 在第二系统实施例中，一对计量阀向所有发动机气缸供应燃料。 公开了计量阀的几个实施例，其中一些允许机械燃料分配器从系统中排除。 所有公开的计量阀通过横跨另一通道的阀构件中的通道来将燃料从泵流量调节到喷嘴。 通过由电子逻辑激励的电磁装置将动作赋予阀构件。 该逻辑响应发动机转速和油门位置。

公开(公告)号：US20240254953A1

公开(公告)日：2024-08-01

申请号：US18564235

申请日：2022-02-21

Applicant: KUBOTA CORPORATION

Inventor： Akira TAMURA ,  Hiroki OSO ,  Naotaro NAGAI ,  Shingo MATSUNOBU ,  Masanari TENNOMI

IPC: F02M61/14

CPC classification number: F02M61/14 ,  F02M2200/40

Abstract: An object of the present invention is to provide a fuel injection system capable of suppressing an occurrence of distortion in an injector during assembly of components. A fuel injection system (3) includes: a bracket (5) which is fixed to a cylinder head (21) of an engine (2); a fuel accumulator (6) which is supported by and fixed to the bracket (5) and which accumulates pressure of fuel supplied from a fuel pump; and an injector (7) which is directly connected to the fuel accumulator (6) and mounted to the cylinder head (21) and which injects the fuel, supplied from the fuel accumulator (6), into a combustion chamber. At least one of the fuel accumulator (6) and the bracket (5) has guide members (64, 513) which guide the injector (7) to a mount position on the cylinder head (21).

公开(公告)号：US11885284B2

公开(公告)日：2024-01-30

申请号：US17861821

申请日：2022-07-11

Applicant: Liebherr Machines Bulle SA

Inventor： Bouzid Seba ,  Bakir Puran

IPC: F02M21/02 ,  F02D19/02

CPC classification number: F02M21/0239 ,  F02D19/022 ,  F02D19/027 ,  F02M21/0206 ,  F02M21/0233 ,  F02M21/0245 ,  F02D2200/0602 ,  F02M2200/40

Abstract: The invention relates to a fuel injection device for an internal combustion engine comprising at least one central rail which is in fluid communication with at least one primary fuel tank, characterized in that at least one auxiliary fuel pressure accumulator is provided, the internal volume of which is in communication with the central rail via at least one control valve in order to temporarily provide a simultaneous fuel supply to the central rail from the auxiliary fuel pressure accumulator and the primary fuel tank.

公开(公告)号：US09765743B2

公开(公告)日：2017-09-19

申请号：US13890839

申请日：2013-05-09

Applicant: Continental Automotive GmbH

Inventor： Willibald Schurz ,  Martin Simmet ,  Gerd Schmutzler

IPC: F02M69/04 ,  F02M55/02 ,  F02M51/06 ,  F02M61/08

CPC classification number: F02M69/04 ,  F02M51/0603 ,  F02M55/02 ,  F02M61/08 ,  F02M2200/03 ,  F02M2200/40

Abstract: An injection valve may have a nozzle body with a longitudinal axis, in which a nozzle body aperture and at least one injection opening are arranged, wherein the nozzle body aperture can be coupled hydraulically to a high-pressure circuit for a fluid, at least one nozzle needle arranged in an axially movable manner in the nozzle body aperture, wherein the nozzle needle prevents fluid flow through the at least one injection opening in a closing position and allows fluid flow through the at least one injection opening outside the closing position, an actuator housing, which is designed to accommodate an actuator designed to act on the nozzle needle, and at least one fluid line, which is designed for hydraulic coupling to the high-pressure circuit for the fluid and is constructed and arranged separately from the actuator housing, and is directly coupled hydraulically to the nozzle body aperture.

公开(公告)号：US20170002780A1

公开(公告)日：2017-01-05

申请号：US15106713

申请日：2014-11-13

Applicant: L'ORANGE GMBH

Inventor： Markus KALENBORN

IPC: F02M43/04 ,  F02M47/02 ,  F02M63/00 ,  F02M45/08

CPC classification number: F02M43/04 ,  F02D19/0694 ,  F02D19/10 ,  F02M45/086 ,  F02M47/027 ,  F02M55/002 ,  F02M63/0045 ,  F02M2200/40 ,  Y02T10/36

Abstract: A dual-fuel injector for a fuel injection device, including: a liquid fuel injector unit with a nozzle needle assigned to a liquid fuel nozzle arrangement of the dual-fuel injector and which is stroke controllable via a first control chamber; and a gas injector unit with a gas nozzle needle assigned to a gas nozzle arrangement of the dual-fuel injector and which is stroke controllable via a second control chamber. Each of the control chambers can be impinged with a control fluid to control the stroke of the respective nozzle needle. The control fluid from both the control chambers can be discharged. The dual-fuel injector has a control fluid reservoir in which discharged control fluid from the first control chamber can be introduced; the dual-fuel injector is configured to impinge the second control chamber with control fluid from the control fluid reservoir for the stroke control of the gas nozzle needle.

Abstract translation: 一种用于燃料喷射装置的双燃料喷射器，包括：液体燃料喷射器单元，其具有分配给所述双燃料喷射器的液体燃料喷嘴装置的喷嘴针，并且其经由第一控制室可行程; 以及气体喷射器单元，其具有分配给双燃料喷射器的气体喷嘴装置的气体喷嘴针头，并且其可通过第二控制室行程控制。 每个控制室可以与控制流体相撞以控制相应喷嘴针的行程。 来自两个控制室的控制流体可以排出。 双燃料喷射器具有控制流体储存器，其中可以引入来自第一控制室的排出的控制流体; 双燃料喷射器构造成用来控制气体喷嘴针的行程控制的来自控制流体储存器的控制流体冲击第二控制室。

公开(公告)号：US09181890B2

公开(公告)日：2015-11-10

申请号：US13681240

申请日：2012-11-19

Applicant: Oded Eddie Sturman

Inventor： Oded Eddie Sturman

IPC: F02D1/06 ,  F02D41/20 ,  F02M1/18 ,  F02M47/02 ,  F02M57/02 ,  F02M51/06

CPC classification number: F02D41/20 ,  F02D2200/0602 ,  F02M1/18 ,  F02M47/02 ,  F02M51/061 ,  F02M57/02 ,  F02M57/025 ,  F02M2200/40

Abstract: Methods of operating fuel injectors with intensified fuel storage. At least one storage volume is provided in the intensifier type fuel injector, with a check valve between the intensifier and the needle chamber and storage volume preventing loss of injection pressure while the intensifier plunger cylinder is refilling with fuel. Using the check valve to isolate the storage volume from the intensifier to reduce and control pressure spikes that effect injector operation. This provides very efficient injector operation, particularly at low engine loads, by eliminating the wasted energy of compressing, venting and recompressing fuel for injection and reducing and controlling pressure spikes that effect injector operation.

Abstract translation: 操作具有加强燃料储存的燃油喷射器的方法。 在增压型燃料喷射器中提供至少一个存储容积，在增压器和针室之间具有止回阀，并且在增压器柱塞缸重新填充燃料时防止了注射压力的损失。 使用止回阀将储存容积与增压器隔离，以减少和控制影响注射器运行的压力峰值。 这提供了非常有效的喷油器操作，特别是在低发动机负载下，通过消除压缩，排气和再压缩注射燃料的浪费的能量，并且减少和控制影响喷油器操作的压力尖峰。

公开(公告)号：US20150068496A1

公开(公告)日：2015-03-12

申请号：US14367948

申请日：2012-01-03

Applicant: Sergi Yudanov

Inventor： Sergi Yudanov

IPC: F02M31/20 ,  F02M63/02 ,  F02M67/10

CPC classification number: F02M31/20 ,  F02D41/0025 ,  F02D41/123 ,  F02D41/3863 ,  F02D41/3872 ,  F02M55/002 ,  F02M63/0005 ,  F02M63/0029 ,  F02M63/005 ,  F02M63/02 ,  F02M63/0215 ,  F02M63/022 ,  F02M63/0225 ,  F02M63/0245 ,  F02M63/0275 ,  F02M67/10 ,  F02M69/465 ,  F02M2200/18 ,  F02M2200/40 ,  F02M2200/95

Abstract: A fuel system includes a low pressure fuel system, a high-pressure fuel pump, a common rail, at least one fuel injector, and an engine management system. The engine management system may initiate a recirculating cooling fuel flow through the high-pressure fuel pump for avoiding fuel boiling by either increasing the target pressure of the fuel within the common rail above a threshold level, which triggers opening a high-pressure fuel relief valve, such that fuel supplied by the high-pressure fuel pump is returned to the low pressure fuel system via the high-pressure fuel relief valve, or providing increased internal fuel leakage within the at least one fuel injector, such that fuel supplied by the high-pressure fuel pump is returned to the low pressure fuel system by a return line.

Abstract translation: 燃料系统包括低压燃料系统，高压燃料泵，共轨，至少一个燃料喷射器和发动机管理系统。 发动机管理系统可以启动通过高压燃料泵的循环冷却燃料流，以通过将共轨内的燃料的目标压力提高到高于阈值水平来避免燃料沸腾，这触发打开高压燃料安全阀 使得由高压燃料泵供应的燃料经由高压燃料安全阀返回到低压燃料系统，或者在至少一个燃料喷射器内提供增加的内部燃料泄漏，使得由高压燃料供应的燃料 压力燃油泵通过返回管路返回到低压燃油系统。

公开(公告)号：US20140224221A1

公开(公告)日：2014-08-14

申请号：US14164514

申请日：2014-01-27

Applicant: Ford Global Technologies, LLC

Inventor： Donatus Andreas Josephine Kees ,  Stuart Anthony Lane

IPC: F02M69/46

CPC classification number: F02M69/46 ,  F02D41/3845 ,  F02D2200/0602 ,  F02M37/0041 ,  F02M55/02 ,  F02M55/04 ,  F02M59/022 ,  F02M2200/40

Abstract: A system and method for controlling a fuel supply system of an engine is disclosed in which an engine driven high pressure fuel pump is operated whenever possible at one of an optimum demand level providing optimum pump efficiency for the current engine speed or at a zero demand level to reduce the fuel used by the engine to drive the high pressure fuel pump. The operating mode used is dependent upon at least one of the amount of fuel currently stored in a high pressure fuel accumulator and whether a current fuel demand Fd exceeds an optimum quantity Po of fuel that can be provided by the high pressure fuel pump when operating at the current engine speed.

Abstract translation: 公开了一种用于控制发动机的燃料供应系统的系统和方法，其中发动机驱动的高压燃料泵在可能的情况下以最佳需求水平之一运行，为当前发动机转速提供最佳泵效率或在零需求水平 以减少发动机使用的燃料来驱动高压燃料泵。 所使用的操作模式取决于当前存储在高压燃料蓄积器中的燃料量中的至少一种，当前的燃料需求量Fd是否超过当高压燃料泵工作时可由高压燃料泵提供的最佳燃料量Po 当前发动机转速。