WO2017028537A1 - 一种船用柴油机喷油器 - Google Patents

一种船用柴油机喷油器 Download PDF

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Publication number
WO2017028537A1
WO2017028537A1 PCT/CN2016/077377 CN2016077377W WO2017028537A1 WO 2017028537 A1 WO2017028537 A1 WO 2017028537A1 CN 2016077377 W CN2016077377 W CN 2016077377W WO 2017028537 A1 WO2017028537 A1 WO 2017028537A1
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Prior art keywords
piston
oil
opening
pressure
closing
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PCT/CN2016/077377
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English (en)
French (fr)
Inventor
唐文献
章金鑫
张建
刘博�
李大保
王筱蓉
刘辰朋
晏飞
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江苏科技大学
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Priority to DE212016000002.0U priority Critical patent/DE212016000002U1/de
Publication of WO2017028537A1 publication Critical patent/WO2017028537A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series

Definitions

  • the invention belongs to the field of engine design and relates to an injector, in particular to an external solenoid valve piston opening and closing injector for use on a marine diesel engine.
  • the injector of the fuel injection device which is a key component of the diesel engine, has been developed into the current electronically controlled injector, which has higher requirements on the control accuracy of injection timing, fuel injection law and fuel injection quantity, and the manufacturing precision requirements of the components. And the injector has higher requirements for the suitability of different oils.
  • the common electromagnet and the needle valve coupler are commonly used, and the common rail injector structure for injecting and discharging through the needle valve is difficult to manufacture, sensitive to oil, and the injector is low in modularity and difficult to maintain. Poor interchangeability.
  • the present invention provides a marine diesel injector that effectively achieves rapid response and stable performance, while the electronic control and fuel injection portions are independent of each other, and the entire injector is realized. Modular, so maintenance and repair is convenient.
  • a marine diesel injector of the present invention comprises a body, a piston assembly and a solenoid valve control module;
  • the upper part of the body is provided with a solenoid valve control module, and the upper part is further provided with a high-pressure oil pipe interface for receiving high-pressure fuel.
  • the high-pressure oil pipe connection communicates with the inner hole of the mounting body located in the body, and the inner hole of the mounting seat is connected with the first oil passage.
  • a groove is arranged in a lower part of the inner body, and a piston assembly is installed in the groove;
  • the piston assembly includes an opening and closing piston, an opening and closing piston rod and a fuel injector, wherein the opening and closing piston has a piston body on the upper and lower sides and a cylindrical structure in the middle portion, and the opening and closing piston rod is thin at the upper end and thick at the lower end, and is opened and closed.
  • the piston and the inner wall of the groove of the body form an outer piston cavity
  • the opening and closing piston and the opening and closing piston rod form an inner piston cavity
  • the outer piston cavity communicates with the high pressure oil pipe through the first oil passage, and is provided on the cylindrical structure of the opening and closing piston
  • the oil hole of the oil inlet, the inner piston cavity communicates with the outer piston cavity through the oil hole
  • the fuel injection nozzle is located at the lower end of the opening and closing piston, and the fuel injection nozzle is provided with an oil injection hole;
  • the solenoid valve control module includes an external solenoid valve, a mounting base and a control piston.
  • the external solenoid valve is connected to the body through a mounting base, the control piston is located in the mounting base, and an oil storage chamber is arranged at an upper portion of the body.
  • the piston rod of the control piston is inserted into the oil storage chamber, and the liquid in the oil storage chamber flows into the top end of the opening and closing piston through the third oil passage.
  • the body is provided with a fuel leakage hole, and the fuel leakage hole communicates with the second oil passage communicating with the outside, the first oil passage intersects with the second oil passage, and the inner hole of the mounting seat is tapered.
  • the fuel leakage hole communicates with the outside world. After the fuel enters through the horizontal hole, it will only flow downward due to the pressure, and its liquid level will not exceed the height of the horizontal hole. (Connector principle: the liquid level of the pipe connected to the air Not higher than the level of the horizontal pipe); but in the case of oil return, The opposite is true. When the fuel returns to the intersection of the horizontal hole and the vertical hole, it can flow out from the hole that is in contact with the air to complete the leak.
  • the body is provided with an upper oil passage communicating with the oil storage chamber, and the top end of the upper oil passage is provided with an external servo hydraulic system.
  • the installation base is provided with a leakage oil return port communicating with the control piston.
  • an adjustment pad for adjusting the volume of the reservoir chamber is mounted between the mounting base and the body.
  • the body of the invention receives the high-pressure fuel through the high-pressure oil pipe and reaches the opening and closing piston cavity through the internal oil passage, and the high-pressure servo hydraulic oil reaches the control piston cavity through the internal oil passage, the high-pressure fuel pressure is slightly larger than the high-pressure servo hydraulic oil pressure, and the high-pressure fuel oil
  • the combination of pressure and hydraulic servo hydraulic oil pressure, the opening and closing piston stops at the top dead center, and the control port of the external solenoid valve changes the oil circuit of the high pressure or low pressure to change the oil pressure of the control room. And controlling the downward stroke of the piston, thereby compressing the servo hydraulic oil of the control piston chamber, pushing the opening and closing piston to travel downward, thereby realizing the opening and closing of the lower end oil passage of the opening and closing piston to achieve the fuel injection control.
  • the invention adopts the opening and closing piston assembly instead of the needle valve coupling member, realizes the hydraulic opening and closing of the injector, and combines with the external electromagnetic control to realize the modular structure and the multiple injection, and has the performance stability and the processing precision requirement. Low, easy maintenance and adaptability to fuel quality changes, especially suitable for medium and low speed marine high power diesel engines.
  • the marine diesel injector of the present invention combines the high flow rate and high response speed controlled by an external solenoid valve with the high suitability and low manufacturing difficulty of the heavy duty oil of the piston open/close injector, and effectively realizes rapid response.
  • the work performance is stable, and the electronic control and fuel injection parts are independent of each other, and the entire injector is modularized, so that maintenance and repair are convenient.
  • Figure 1 is a schematic view of the structure of the present invention
  • Fig. 2 is a schematic view showing the state after the downward movement of the present invention.
  • the marine diesel injector of the present invention includes a body 1, a piston assembly and a solenoid valve control module.
  • the upper portion of the body 1 is provided with a high pressure oil pipe connection 13 and a mounting seat 11, and the high pressure oil pipe connection 11 is connected to an external high pressure oil pipe to receive high pressure fuel from a high pressure oil pump or a high pressure fuel common rail system.
  • the mounting seat 11 is connected to the high-pressure oil pipe port 13 and has an oil hole, that is, an inner hole of the mounting seat.
  • the oil hole is tapered, and is in contact with the interface of the high-pressure oil pipe and is sealed, and the oil hole is connected with the first oil passage.
  • the body 1 is provided with a fuel leakage hole 12, the fuel leakage hole is connected with the second oil passage communicating with the outside, the first oil passage intersects with the second oil passage, and the fuel leakage hole 12 is connected with the high pressure common rail system or the high pressure oil pump.
  • the injector 4 has oil returning, the fuel can be leaked to avoid fuel leakage to the injector 4 elsewhere, which affects the working efficiency of the injector 4.
  • the piston assembly is disposed at a lower portion of the body 1 and includes an opening and closing piston 2, an opening and closing piston rod 3, and a fuel injector 4.
  • the opening and closing piston 2 is provided with an upper and lower piston body, and the intermediate portion has a cylindrical structure for connection.
  • the opening and closing piston 2 and the lower portion of the body 1 form an outer piston chamber 6, and the high pressure fuel enters the outer piston chamber 6 through the first oil passage of the body; the inner piston chamber 5 is formed between the opening and closing piston 2 and the piston rod 3, and the piston 2 is opened and closed.
  • the middle cylinder is provided with oil holes for oil supply.
  • the injector 4 is connected to a lower end of the opening and closing piston 2.
  • the opening and closing piston 2 slides downward along the opening and closing piston rod 3, and the outer piston chamber 6 communicates with the oil hole of the fuel injector 4.
  • the fuel in the outer piston chamber 6 enters the nozzle 4 to effect fuel injection.
  • the oil hole on the middle cylinder of the opening and closing piston 2 is closed by the lower end of the opening and closing piston rod 3.
  • the inner piston chamber 5 is disconnected from the outer piston chamber 6 to form a closed space. .
  • the opening and closing piston 2 moves downward, the oil pressure of the inner piston chamber 5 continues to increase, forming a certain level of high-pressure fuel, and the opening and closing piston 2 has an upward movement tendency under the action of its oil pressure.
  • the oil pressure in the inner piston chamber 5 is sufficient to overcome the pressure applied to the upper end of the opening and closing piston 2, the opening and closing piston 2 moves up until the outer piston chamber 6 is disconnected from the injector oil hole, and the fuel injection is stopped.
  • the inner piston chamber 5 communicates with the outer piston chamber 6, and the opening and closing piston 2 is reset by the action of pressure.
  • the solenoid valve control module is mounted on the top of the body 1, and includes an external solenoid valve 8, a mounting base 10, an adjustment washer 7, an external servo hydraulic system 15, and a control piston 9, the external solenoid valve 8 Mounted on the body 1 by a mounting base 10, the mounting base 10 is fixed to the body 1 by screws, the control piston 9 is placed in the inner cavity of the mounting base 10, and the bottom of the control piston 9
  • An oil storage chamber is formed between the end and the body 1, and the external servo hydraulic system 15 controls the pressure of the servo hydraulic oil entering the oil storage chamber through the upper oil passage of the body 1, the adjusting gasket 7 clamp It is placed between the mounting base 10 and the body 1, and the volume of the oil storage chamber is adjusted by changing the thickness.
  • the left side of the mounting base 10 is provided with a leaking oil return port 14 for discharging the leaked control oil to prevent the oil from entering the lower oil storage chamber.
  • the servo hydraulic oil pressure in the oil storage chamber is equal to the fuel pressure in the outer piston chamber 6, so that the opening and closing piston 2 is maintained in an equilibrium state.
  • the external solenoid valve 8 receives the external control signal, changes the stroke of the control piston 9, controls the servo hydraulic oil entering the oil storage chamber to flow to the upper end chamber of the opening and closing piston 2, and pushes the opening and closing piston 2 to move downward.
  • the specific working process of the present invention is as follows: when the external solenoid valve 8 is not energized, its internal control port is connected to the low pressure servo oil, and the control piston 9 is subjected to an upward servo oil pressure greater than that from the control chamber of the external solenoid valve 8 Under the servo oil pressure, the control piston 9 is kept in a stationary state, and the injector 4 is not sprayed.
  • the external solenoid valve 8 receives the control signal of the electronic control unit and is energized, its internal control port is quickly switched to the high-pressure servo oil, and the servo oil in the control chamber pushes the control piston 9 downward to push the servo oil in the oil storage chamber into the opening and closing.
  • the upper end chamber of the piston 2 pushes the opening and closing piston 2 downward, so that the outer piston chamber 6 is connected to the fuel injector 4, and the fuel injector 4 realizes fuel injection.
  • the oil pressure of the inner piston chamber 5 continues to increase, forming a certain level of high-pressure fuel, and the opening and closing piston 2 has an upward movement tendency under the action of its oil pressure.
  • the oil pressure in the inner piston chamber 5 is sufficient to overcome the pressure applied to the upper end of the opening and closing piston 2, the opening and closing piston 2 moves up until the outer piston chamber 6 is disconnected from the injector oil hole, and the fuel injection is stopped.
  • the inner piston chamber 5 and outside The piston chamber 6 is connected, and the opening and closing piston 2 is reset by the action of pressure.
  • the injector can be realized under the rapid switching of the electromagnetic valve 8.
  • the rapid movement of the opening and closing piston 2 enables a flexible injection mode and real-time adjustment.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

一种船用柴油机喷油器，包括本体（1）、活塞组件、电磁阀控制模块，本体（1）通过高压油管接收高压燃油，并通过内部油道到达启闭活塞腔，同时高压伺服液压油通过内部油道到达控制活塞腔，在高压燃油压力和伺服液压油压力的共同作用下，启闭活塞（2）停止在上止点，通过控制信号的快速切换，外置电磁阀（8）的控制口变换接通高压或低压的油路，改变控制室的油压和控制活塞（9）向下的行程，进而压缩控制活塞腔的伺服液压油，推动启闭活塞（2）向下行进，从而实现启闭活塞（2）下端油道的打开和关闭，以达到喷油的控制。该喷油器有效实现了快速响应和工作性能稳定，同时电控和喷油部分相互独立，整个喷油器实现了模块化，因而维护检修方便。

Description

一种船用柴油机喷油器 技术领域
本发明属于发动机设计领域，涉及一种喷油器，尤其涉及一种用于船用柴油机上的外置电磁阀活塞启闭式喷油器。
背景技术
作为柴油机关键组件的燃油喷油装置的喷油器发展到目前的电控喷油器，其对喷油正时、喷油规律及喷油量的控制精度要求更高，对组件的制造精度要求及喷油器对不同油品的适用度要求也更高。
目前普遍采用内置电磁铁和针阀偶件，通过针阀启闭进行喷油的共轨喷油器结构，其制造难度大，对油品敏感，且喷油器模块化程度低，维护困难，互换性差。
发明内容
发明目的：为了克服现有技术中存在的不足，本发明提供一种船用柴油机喷油器，有效实现了快速响应和工作性能稳定，同时电控和喷油部分相互独立，整个喷油器实现了模块化，因而维护检修方便。
技术方案：为解决上述技术问题，本发明的一种船用柴油机喷油器，包括本体、活塞组件和电磁阀控制模块；
所述本体的上部安装有电磁阀控制模块，上部还设有用于接收高压燃油的高压油管接口，高压油管接口与位于本体内的安装座内孔连通，安装座内孔与第一油道连通，在内体下部设有凹槽，凹槽内安装有活塞组件；
所述活塞组件包括启闭活塞、启闭活塞杆和喷油嘴，所述启闭活塞为上下为活塞体、中部为圆筒结构，所述启闭活塞杆为上端细、下端粗，启闭活塞与本体的凹槽内壁形成外活塞腔，启闭活塞与启闭活塞杆形成内活塞腔，外活塞腔通过第一油道与高压油管接口连通，在启闭活塞的圆筒结构上设有进油的油孔，内活塞腔通过油孔与外活塞腔连通，喷油嘴位于启闭活塞的下端，喷油嘴设有喷油孔；
所述电磁阀控制模块包括外置电磁阀、安装基座和控制活塞，所述外置电磁阀通过安装基座与本体连接，控制活塞位于安装基座内，在本体的上部设有储油室，控制活塞的活塞杆***到储油室中，储油室内的液体通过第三油道流入到启闭活塞的顶端。
作为优选，所述本体上设有燃油泄漏孔，燃油泄漏孔与外界连通的第二油道连通，第一油道与第二油道相交，安装座内孔为锥形。燃油泄漏孔跟外界连通，燃油经水平孔进入后，然后由于压力的作用只会向下流动，其液面不会超过水平孔的高度(连通器原理：与空气接通那段管道的液面不会高于水平管道的液面)；但在存在回油的情况下， 情况就相反了，燃油回流至水平孔与竖直孔的交叉处，就可以从那段与空气接触的孔流出，完成泄露。
作为优选，所述本体上设有与储油室连通的上端油道，上端油道的顶端设有外置伺服液压***。
作为优选，所述安装基座上设有与控制活塞连通的泄露油回油口。
作为优选，所述安装基座与本体之间安装有调整储油室腔体体积的调整垫片。
本发明的本体通过高压油管接收高压燃油，并通过内部油道到达启闭活塞腔，同时高压伺服液压油通过内部油道到达控制活塞腔，高压燃油压力稍大于高压伺服液压油压力，在高压燃油压力和液压伺服液压油压力的共同作用，启闭活塞停止在上止点，通过控制信号的快速切换，外置电磁阀的控制口变换接通高压或低压的油路，改变控制室的油压和控制活塞向下的行程，进而压缩控制活塞腔的伺服液压油，推动启闭活塞向下行进，从而实现启闭活塞下端油道的打开和关闭，以达到喷油的控制。
本发明采用启闭活塞组件代替针阀偶件，实现喷油器的液压启闭，并与外置电磁控制相结合，实现了结构模块化，能够多次喷射，具有性能稳定、对加工精度要求低、维护检修方便和对燃油品质变化适应能力强的优点，特别适用于中低速船用大功率柴油机。
有益效果：本发明的船用柴油机喷油器，结合了外置电磁阀控制的大流量高响应速度与活塞启闭式喷油器对重油适用度高、制造难度低的优点，有效实现了快速响应和工作性能稳定，同时电控和喷油部分相互独立，整个喷油器实现了模块化，因而维护检修方便。
附图说明
图1为本发明的结构示意图；
图2为本发明的下移后的状态示意图。
具体实施方式
如图1和图2所示，本发明的船用柴油机喷油器包括本体1、活塞组件和电磁阀控制模块。所述本体1的上部设有高压油管接口13和安装座11，所述高压油管接口11连接外部的高压油管，以接收来自高压油泵或者高压燃油共轨***的高压燃油，。所述安装座11与该高压油管接口13连接并带有油孔即安装座内孔，该油孔为锥形，与高压油管的接口锥面接触且密封连接，油孔与第一油道连通，同时本体1上设置有燃油泄漏孔12，燃油泄漏孔与外界连通的第二油道连通，第一油道与第二油道相交，燃油泄漏孔12与高压共轨***或高压油泵连通，在喷油器4有回油的情况下，可以将燃油泄露，避免对喷油器4造成其他地方有燃油泄露，影响喷油器4的工作效率。
所述活塞组件，设置于所述本体1的下部，包含启闭活塞2、启闭活塞杆3、喷油嘴4。所述启闭活塞2设有上下活塞体，中间部分为圆筒结构，进行连接。所述启闭活塞2与本体1下部形成外活塞腔6，高压燃油通过本体的第一油道进入外活塞腔6；启闭活塞2与活塞杆3间形成内活塞腔5，启闭活塞2中部圆筒设有用以进油的油孔。所述喷油嘴4连接于所述启闭活塞2的下端。该启闭活塞2沿启闭活塞杆3向下滑动，所述外活塞腔6与喷油嘴4油孔连通。当外活塞腔6与喷油嘴4油孔连通时，外活塞腔6里的燃油进入喷嘴4，实现喷油。随着启闭活塞2向下滑动，启闭活塞2中部圆筒上的油孔会被启闭活塞杆3下端封闭，如图2，内活塞腔5与外活塞腔6断开，形成密闭空间。随着启闭活塞2的下移，内活塞腔5的油压会持续增大，形成一定程度的高压燃油，启闭活塞2在其油压作用下具有向上的运动趋势。当内活塞腔5内的油压足以克服启闭活塞2上端被施加的压力时，启闭活塞2上移，直到外活塞腔6与喷油嘴油孔断开，停止喷油。同时，内活塞腔5与外活塞腔6连通，启闭活塞2在压力的作用复位。
所述电磁阀控制模块安装在所述本体1的顶部，包括外置电磁阀8、安装基座10、调整垫片7、外置伺服液压***15和控制活塞9，所述外置电磁阀8通过安装基座10固定在所述本体1上，安装基座10通过螺钉固定在本体1上，所述控制活塞9穿置与该安装基座10的内腔中，并且该控制活塞9的底端与本体1之间形成一储油室，所述外置伺服液压***15通过所述本体1的上端油道控制进入所述储油室的伺服液压油的压力，所述调整垫片7夹置于安装基座10与本体1之间，通过改变厚度来调整所述储油室的容积。所述安装基座10的左侧设有泄露油回油口14，用于排出泄露的控制滑油，避免滑油进入下部的储油室。储油室内的伺服液压油压力等于所述外活塞腔6内的燃油压力，使启闭活塞2保持平衡状态。所述外置电磁阀8接收外来控制信号，改变控制活塞9的行程，控制进入所述储油室的伺服液压油向启闭活塞2上端腔流动，推动启闭活塞2向下运动。
本发明的具体工作过程如下：当外置电磁阀8未通电时，其内部控制口与低压伺服油相连，控制活塞9受到向上的伺服油压力大于来自外置电磁阀8控制室所给的向下的伺服油压力，控制活塞9保持静止状态，喷油嘴4不喷油。当外置电磁阀8接收电控单元控制信号后通电，其内部控制口迅速切换至高压伺服油，控制室内的伺服油推动控制活塞9向下运动，把储油室内的伺服油压入启闭活塞2上端腔，从而推动启闭活塞2下移，使外活塞腔6与喷油嘴4相连，喷油嘴4实现喷油。随着启闭活塞2的下移，内活塞腔5的油压会持续增大，形成一定程度的高压燃油，启闭活塞2在其油压作用下具有向上的运动趋势。当内活塞腔5内的油压足以克服启闭活塞2上端被施加的压力时，启闭活塞2上移，直到外活塞腔6与喷油嘴油孔断开，停止喷油。同时，内活塞腔5与外 活塞腔6连通，启闭活塞2在压力的作用复位。通过精确安排启闭活塞2圆筒中部的油孔大小即其与喷油嘴4油孔的相对位置、储油室的容积及形状，可以使喷油器在电磁阀8的迅速切换下，实现启闭活塞2的迅速移动，实现灵活的喷油模式，以及实时的调整。以上所述仅是本发明的优选实施方式，应当指出：对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (5)

  1. 一种船用柴油机喷油器，其特征在于：包括本体、活塞组件和电磁阀控制模块；
    所述本体的上部安装有电磁阀控制模块，上部还设有用于接收高压燃油的高压油管接口，高压油管接口与位于本体内的安装座内孔连通，安装座内孔与第一油道连通，在内体下部设有凹槽，凹槽内安装有活塞组件；
    所述活塞组件包括启闭活塞、启闭活塞杆和喷油嘴，所述启闭活塞为上下为活塞体、中部为圆筒结构，所述启闭活塞杆为上端细、下端粗，启闭活塞与本体的凹槽内壁形成外活塞腔，启闭活塞与启闭活塞杆形成内活塞腔，外活塞腔通过第一油道与高压油管接口连通，在启闭活塞的圆筒结构上设有进油的油孔，内活塞腔通过油孔与外活塞腔连通，喷油嘴位于启闭活塞的下端，喷油嘴设有喷油孔；
    所述电磁阀控制模块包括外置电磁阀、安装基座和控制活塞，所述外置电磁阀通过安装基座与本体连接，控制活塞位于安装基座内，在本体的上部设有储油室，控制活塞的活塞杆***到储油室中，储油室内的液体通过第三油道流入到启闭活塞的顶端。
  2. 根据权利要求1所述的船用柴油机喷油器，其特征在于：所述本体上设有燃油泄漏孔，燃油泄漏孔与外界连通的第二油道连通，第一油道与第二油道相交，安装座内孔为锥形。
  3. 根据权利要求1所述的船用柴油机喷油器，其特征在于：所述本体上设有与储油室连通的上端油道，上端油道的顶端设有外置伺服液压***。
  4. 根据权利要求3所述的船用柴油机喷油器，其特征在于：所述安装基座上设有与控制活塞连通的泄露油回油口。
  5. 根据权利要求4所述的船用柴油机喷油器，其特征在于：所述安装基座与本体之间安装有调整储油室腔体体积的调整垫片。
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CN108412653A (zh) * 2018-03-30 2018-08-17 中国重汽集团重庆燃油喷射***有限公司 一种共轨喷油器
CN109736988A (zh) * 2018-12-31 2019-05-10 南岳电控（衡阳）工业技术股份有限公司 一种单缸柴油机用的电控单体喷油泵
CN111102112A (zh) * 2019-12-31 2020-05-05 南岳电控（衡阳）工业技术股份有限公司 一种船用单体泵泵腔内部压力调节结构
CN111412094A (zh) * 2020-03-17 2020-07-14 成都威特电喷有限责任公司 具有动态泄流控制的电控高压燃油喷射装置
CN111946510A (zh) * 2020-09-09 2020-11-17 中船动力研究院有限公司 一种喷射阀及发动机
CN112360656A (zh) * 2020-11-27 2021-02-12 中船动力研究院有限公司 一种高压式流体喷射装置及内燃机
CN112555474A (zh) * 2020-12-03 2021-03-26 重庆红江机械有限责任公司 一种机械式滑油控制安全阀组件
CN112761841A (zh) * 2020-12-23 2021-05-07 南岳电控（衡阳）工业技术股份有限公司 一种防止柴油机启动困难的喷油泵
CN114017221A (zh) * 2021-11-25 2022-02-08 重庆红江机械有限责任公司 一种电控喷油器
CN114484247A (zh) * 2021-12-31 2022-05-13 广西玉柴重工有限公司 一种伐木机可调喷油泵
CN115387943A (zh) * 2022-09-01 2022-11-25 哈尔滨工程大学 一种适用于大功率柴油机的多喷射模式电控喷油器

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CN108412653B (zh) * 2018-03-30 2023-11-03 重油高科电控燃油喷射***(重庆)有限公司 一种共轨喷油器
CN109736988B (zh) * 2018-12-31 2023-08-29 南岳电控（衡阳）工业技术股份有限公司 一种单缸柴油机用的电控单体喷油泵
CN109736988A (zh) * 2018-12-31 2019-05-10 南岳电控（衡阳）工业技术股份有限公司 一种单缸柴油机用的电控单体喷油泵
CN111102112A (zh) * 2019-12-31 2020-05-05 南岳电控（衡阳）工业技术股份有限公司 一种船用单体泵泵腔内部压力调节结构
CN111412094A (zh) * 2020-03-17 2020-07-14 成都威特电喷有限责任公司 具有动态泄流控制的电控高压燃油喷射装置
CN111946510A (zh) * 2020-09-09 2020-11-17 中船动力研究院有限公司 一种喷射阀及发动机
CN112360656A (zh) * 2020-11-27 2021-02-12 中船动力研究院有限公司 一种高压式流体喷射装置及内燃机
CN112555474B (zh) * 2020-12-03 2023-05-16 重庆红江机械有限责任公司 一种机械式滑油控制安全阀组件
CN112555474A (zh) * 2020-12-03 2021-03-26 重庆红江机械有限责任公司 一种机械式滑油控制安全阀组件
CN112761841A (zh) * 2020-12-23 2021-05-07 南岳电控（衡阳）工业技术股份有限公司 一种防止柴油机启动困难的喷油泵
CN114017221A (zh) * 2021-11-25 2022-02-08 重庆红江机械有限责任公司 一种电控喷油器
CN114017221B (zh) * 2021-11-25 2024-02-06 重庆红江机械有限责任公司 一种电控喷油器
CN114484247A (zh) * 2021-12-31 2022-05-13 广西玉柴重工有限公司 一种伐木机可调喷油泵
CN115387943A (zh) * 2022-09-01 2022-11-25 哈尔滨工程大学 一种适用于大功率柴油机的多喷射模式电控喷油器
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