公开(公告)号：US5054445A

公开(公告)日：1991-10-08

申请号：US612262

申请日：1990-11-09

Applicant: Dietmar Henkel ,  Max Garbisch

Inventor： Dietmar Henkel ,  Max Garbisch

IPC: F02M45/02 ,  F02B3/06 ,  F02M45/00 ,  F02M45/04 ,  F02M45/06 ,  F02M45/08 ,  F02M55/02 ,  F02M59/36 ,  F02M61/20

CPC classification number: F02M45/04 ,  F02M45/08 ,  F02M55/02 ,  F02M59/366 ,  F02M61/205 ,  F02B3/06

Abstract: The invention relates to a fuel injection system for self-ignition internal combustion engines. The noise reduction of Diesel engines requires new injection systems. According to the invention a pre-injection and a main injection is achieved by employing to injection lines of different lengths. The difference in length is selected such that the time difference of the pressure waves for travelling the respective lengths corresponds to the desired time delay between the pre-injection and the main injection. In order to account for the compressibility of the fuel both injection lines are maintained at a standing pressure. The hydraulic effect of the injection lines on each other is prevented by check valves and by-pass valves. The controlled injection significantly reduces the combustion noise.

Abstract translation: 本发明涉及一种用于自点火内燃机的燃料喷射系统。 柴油发动机的噪音降低需要新的喷油系统。 根据本发明，通过采用不同长度的注射管线来实现预注射和主注射。 选择长度差，使得用于行进各个长度的压力波的时间差对应于预喷射和主喷射之间的期望时间延迟。 为了解释燃料的压缩性，两个注入管线都保持在立式压力下。 通过止回阀和旁通阀可以防止注入管路的液压效应。 受控喷射显着降低了燃烧噪声。

公开(公告)号：US4917306A

公开(公告)日：1990-04-17

申请号：US152655

申请日：1988-02-05

Applicant: David J. Gaskell

Inventor： David J. Gaskell

IPC: F02M61/10 ,  F02M45/08

CPC classification number: F02M45/08

Abstract: A fuel injection nozzle comprises a valve member which is biased into contact with a seating by a spring supported on a spring abutment having an integral extension which projects through an aperture in the end face of a holder which carries a nozzle body in which the valve member is located. The valve member is in engagement with the extension. A sleeve surrounds the valve member and is slidable in the body and is engageable with the extension. The valve member and the sleeve move together against the action of the spring under the action of fuel pressure to allow fuel flow to an outlet. The movement of the sleeve is arrested by a stop surface defined by the end face of the holder. The continued movement of the valve member being under the action of the fuel pressure acting on the valve member alone, until its movement is arrested by a stop.

公开(公告)号：US4903896A

公开(公告)日：1990-02-27

申请号：US333960

申请日：1989-04-06

Applicant: Ulrich Letsche ,  Gunther Hafner ,  Karl-Ernst Noreikat

Inventor： Ulrich Letsche ,  Gunther Hafner ,  Karl-Ernst Noreikat

IPC: F02M45/08 ,  F02M63/00 ,  F02M63/02

CPC classification number: F02M63/02 ,  F02M45/08 ,  F02M2200/505

Abstract: The invention relates to a fuel injection device for an air-compressing fuel-injected internal combustion engine, which has an injection line leading from a pump element of high pressure injection pump to a bifurcation branch leading to a main injection nozzle and a preinjection nozzle. A nozzle needle of the preinjection nozzle opens counter to the direction of flow of the fuel and has a body designed with a stepped piston which, in the case of a closure initiating fuel pressure lying above an opening fuel pressure of the nozzle needle, moves the nozzle into a position to end preinjection.

Abstract translation: 本发明涉及一种用于空气压缩燃料喷射内燃机的燃料喷射装置，其具有从高压喷射泵的泵元件引导到通向主喷射喷嘴和预喷射喷嘴的分支支路的喷射管线。 预注射喷嘴的喷嘴针与燃料的流动方向相反地开口，并且具有设计成具有阶梯式活塞的主体，在开启燃料压力高于喷嘴针的开口燃料压力的情况下， 喷嘴进入预注射的位置。

公开(公告)号：US4840310A

公开(公告)日：1989-06-20

申请号：US112495

申请日：1987-10-26

Applicant: Gottfried Haider

Inventor： Gottfried Haider

IPC: F02M61/16 ,  F02M45/08 ,  F02M61/20 ,  F02M63/00

CPC classification number: F02M61/205 ,  F02M45/08 ,  F02M2200/505

Abstract: In a fuel injection nozzle for an internal combustion engine, a valve needle and a valve needle spring are provided, in which the valve needle can be opened against the force of the valve needle spring (6). In the valve needle spring chamber (8) a displacer piston (7) is arranged so as to overlap the valve needle spring (6), which piston clears a displacing volume after a pre-injection so that the pre-injection is separated from the main injection.

Abstract translation: 在内燃机的燃料喷射喷嘴中，设置有阀针和阀针弹簧，其中可以克服阀针簧（6）的力打开阀针。 在阀针弹簧室（8）中，置换器活塞（7）被布置成与阀针弹簧（6）重叠，该活塞在预注射之后清除移位体积，使得预注射与 主注射

公开(公告)号：US4722310A

公开(公告)日：1988-02-02

申请号：US847268

申请日：1986-04-02

Applicant: Toshihiko Igashira ,  Taro Tanaka ,  Yasuyuki Sakakibara ,  Yasuhiro Takeuchi

Inventor： Toshihiko Igashira ,  Taro Tanaka ,  Yasuyuki Sakakibara ,  Yasuhiro Takeuchi

IPC: F02D41/14 ,  F02B3/06 ,  F02D35/02 ,  F02D41/20 ,  F02D41/40 ,  F02M45/06 ,  F02M45/08 ,  F02M47/04 ,  F02M39/00

CPC classification number: F02D35/022 ,  F02D35/028 ,  F02D41/40 ,  F02D41/403 ,  F02M45/06 ,  F02M45/08 ,  F02M47/043 ,  F02B3/06 ,  F02D41/2096 ,  F02D41/408 ,  Y02T10/44

Abstract: In order to perform fuel injection control for a diesel engine, data read by an ignition timing data reading means is compared with a reference data to calculate an ignition timing difference. The ignition timing error is compared with a predetermined threshold value to decide whether or not the ignition timing difference exceeds the predetermined threshold value. A pilot injection timing correction data is generated in accordance with the result of the decision. The pilot injection timing control data is instructed in accordance with the pilot injection timing correction data, and pilot injection timing control is performed in accordance with the pilot injection timing control instruction. A feedback control of a signal based on an output from the ignition timing detector is used for control of a pilot injection timing, so that ignition at a desired ignition timing is performed.

Abstract translation: 为了执行柴油发动机的燃料喷射控制，将由点火定时数据读取装置读取的数据与参考数据进行比较，以计算点火正时差。 将点火定时误差与预定阈值进行比较，以确定点火正时差是否超过预定阈值。 根据判定结果生成导频喷射定时校正数据。 根据导频喷射定时校正数据指示导频喷射定时控制数据，并且根据导频喷射定时控制指令执行先导喷射定时控制。 基于来自点火正时检测器的输出的信号的反馈控制被用于控制引燃喷射正时，使得在期望的点火正时进行点火。

公开(公告)号：US4669429A

公开(公告)日：1987-06-02

申请号：US715380

申请日：1985-03-25

Applicant: Takumi Nishida ,  Yosihtaka Nomoto ,  Masanori Sahara ,  Hirofumi Yamauchi

Inventor： Takumi Nishida ,  Yosihtaka Nomoto ,  Masanori Sahara ,  Hirofumi Yamauchi

IPC: F02D41/06 ,  F02B3/06 ,  F02D1/02 ,  F02D41/00 ,  F02D41/04 ,  F02D41/40 ,  F02M45/00 ,  F02M45/08 ,  F02M61/10 ,  F02M61/16 ,  F02M39/00

CPC classification number: F02M45/08 ,  F02D41/40 ,  F02M61/161 ,  F02B3/06 ,  Y02T10/44

Abstract: A fuel injection system for a diesel engine is provided with a needle-lift-suppressing type fuel injection nozzle such as the central plunger type pintle fuel injection nozzle which has a valve needle adapted to be lifted under fuel pressure fed from a fuel injection pump to increase the effective spray area with increase in the lift of the valve needle and a needle-lift-suppressing means which limits the lift of the valve needle to a pre-lift of a predetermined amount at low load and/or low speed, and a starting detecting means for detecting starting of the engine, said needle-lift-suppressing means being arranged to permit lift of the valve needle beyond said pre-lift irrespective of the engine load and engine speed when the engine is started.

Abstract translation: 一种用于柴油发动机的燃料喷射系统设置有诸如中央柱塞型枢轴燃料喷射喷嘴的提升抑制型燃料喷射喷嘴，其具有适于在从燃料喷射泵供给的燃料压力下被提升的阀针 通过提高阀针的升程来提高有效的喷雾面积，以及将针阀的升程限制为在低负载和/或低速下预定量的预升程的针提升抑制装置，以及 用于检测发动机起动的起动检测装置，所述提升力抑制装置被布置成允许当所述发动机起动时与所述发动机负荷和发动机转速无关地允许所述阀针的升程超过所述预升程。

公开(公告)号：US4461427A

公开(公告)日：1984-07-24

申请号：US347814

申请日：1982-02-11

Applicant: Odon Kopse ,  Nestor Rodriguez-Amaya

Inventor： Odon Kopse ,  Nestor Rodriguez-Amaya

IPC: F02M45/08 ,  F02M45/10 ,  F02M61/10 ,  F02M61/16 ,  F02M61/20 ,  F02M63/00

CPC classification number: F02M61/205 ,  F02M45/08 ,  F02M45/10 ,  F02M61/161 ,  F02M2200/505

Abstract: A fuel injection nozzle for internal combustion engines, in particular a cold-starting valve which has a valve needle opening counter to the force of a closing spring, the valve needle being additionally urged in the closing direction by an adjusting piston. The adjusting piston rests on a yielding stop formed by the closing spring. The stop is formed by the upper valve plate, which has a passageway bore for an extension tang of the adjusting piston. The extension tang forms a pre-stroke stop for the valve needle. A restoring spring is associated with the adjusting piston and is disposed inside the spring chamber, which surrounds the extension tang of the adjusting piston. At least one of the spring support plates has an inner annular wall protruding in collar-like fashion, which surrounds the engaged tang of the adjusting piston or valve needle.

Abstract translation: 一种用于内燃机的燃料喷嘴，特别是具有与闭合弹簧的力相反的阀针开口的冷启动阀，通过调节活塞另外在关闭方向上推动阀针。 调节活塞位于由关闭弹簧形成的屈服止挡件上。 该止动件由上阀板形成，上阀板具有用于调节活塞的延伸柄的通道孔。 延伸柄形成用于阀针的前冲程停止。 复位弹簧与调节活塞相关联并且设置在弹簧室内，该弹簧腔围绕调节活塞的延伸柄。 弹簧支撑板中的至少一个具有以套环状的方式突出的内部环形壁，其围绕调节活塞或阀针的接合的柄脚。

公开(公告)号：US4410141A

公开(公告)日：1983-10-18

申请号：US209347

申请日：1980-11-21

Applicant: Kurt Seifert

Inventor： Kurt Seifert

IPC: F02M45/08 ,  F02M61/08 ,  F02M61/20

CPC classification number: F02M45/08 ,  F02M61/08 ,  F02M61/20

Abstract: A fuel injection nozzle is proposed which opens toward the outside and functions with a valve needle and two springs, and further wherein a throttle restriction is effective after a first portion of the opening stroke, acting as a pre-stroke, and can be subsequently rendered ineffective. The two springs having a predetermined certain relationship to one another enable an abrupt increase in closing force after the pre-stroke. The first spring, embodied as a compression spring, acts in the closing direction; the second spring, having a smaller force than the first spring and acting counter to the closing direction, is rendered ineffective after the pre-stroke has been performed.

Abstract translation: 提出了一种燃料喷射喷嘴，其朝向外部开口并且具有阀针和两个弹簧，并且其中节流阀限制在打开行程的第一部分之后有效，用作前冲程，并且可以随后呈现 无效 具有预定的一定关系的两个弹簧能够使得在行程之后的关闭力突然增加。 作为压缩弹簧体现的第一个弹簧作用于关闭方向; 第二弹簧具有比第一弹簧小的力并且相对于关闭方向起作用的程度在执行预冲程之后变得无效。

公开(公告)号：US4136654A

公开(公告)日：1979-01-30

申请号：US751290

申请日：1976-12-16

Applicant: Gunter Kulke ,  Odon Kopse ,  Gregor Schuster

Inventor： Gunter Kulke ,  Odon Kopse ,  Gregor Schuster

IPC: F02M45/08 ,  F02M61/16 ,  F02M39/00

CPC classification number: F02M61/161 ,  F02M45/08

Abstract: This invention discloses fuel injection nozzles for internal combustion engines which are known to have a needle valve that is shiftable under pressure of the fuel supply against the force of a closing spring and more particularly the improvement wherein the opening stroke of the needle valve can be changed by a transversely movable slide element that includes a spool-like body having a medial area of varying diameter which serves to limit the stroke of the needle valve.

Abstract translation: 本发明公开了一种内燃机的燃料喷射喷嘴，其已知具有能够相对于关闭弹簧的力而在燃料供给的压力下移动的针阀，更具体地说，可以改变针阀的打开行程 通过横向移动的滑动元件，其包括具有变化直径的中间区域的线轴状体，其用于限制针阀的行程。

公开(公告)号：US4081140A

公开(公告)日：1978-03-28

申请号：US706713

申请日：1976-07-19

Applicant: Stanley J. Kranc

Inventor： Stanley J. Kranc

IPC: F02M59/46 ,  F02M61/16 ,  F02M61/20

CPC classification number: F02M61/16 ,  F02M45/08 ,  F02M63/0054

Abstract: A fuel injection nozzle assembly includes a retraction valve disposed and encapsulated within the same housing as the injector valve for thereby reducing the amount of fuel trapped between these valves so that the retraction valve can retract a calculated volume of the trapped fuel abruptly and obtain a sharp ending of the injection cycle.

Abstract translation: 燃料喷射喷嘴组件包括设置并封装在与喷射阀相同的壳体内的收缩阀，从而减少在这些阀之间捕获的燃料量，使得缩回阀可以突然地缩回计算出的捕获的燃料的体积并获得尖锐的 注射循环结束。