WO2014107980A1 - 发动机电控燃油喷射*** - Google Patents

发动机电控燃油喷射*** Download PDF

Info

Publication number
WO2014107980A1
WO2014107980A1 PCT/CN2013/085525 CN2013085525W WO2014107980A1 WO 2014107980 A1 WO2014107980 A1 WO 2014107980A1 CN 2013085525 W CN2013085525 W CN 2013085525W WO 2014107980 A1 WO2014107980 A1 WO 2014107980A1
Authority
WO
WIPO (PCT)
Prior art keywords
electronically controlled
fuel injection
controlled fuel
fuel
oil
Prior art date
Application number
PCT/CN2013/085525
Other languages
English (en)
French (fr)
Inventor
肖亨琳
邵祥
Original Assignee
无锡开普机械有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN 201320011596 external-priority patent/CN203098109U/zh
Priority claimed from CN2013100083230A external-priority patent/CN103047059A/zh
Application filed by 无锡开普机械有限公司 filed Critical 无锡开普机械有限公司
Publication of WO2014107980A1 publication Critical patent/WO2014107980A1/zh

Links

Classifications

    • 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
    • F02M51/04—Pumps peculiar thereto
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/3082—Control of electrical fuel pumps
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
    • F02M59/366—Valves being actuated electrically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/06—Fuel or fuel supply system parameters
    • F02D2200/0602—Fuel pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/31—Control of the fuel pressure
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/102—Mechanical drive, e.g. tappets or cams

Definitions

  • the invention relates to a single cylinder air-cooled diesel electromechanical fuel injection system, and the invention belongs to the technical field of internal combustion engines.
  • the traditional diesel fuel injection system is mechanical, and the oil pressure is not easy to control, which makes the diesel engine have higher emissions and poor economy.
  • the relative position is difficult to guarantee. In order to meet the requirements, the processing cost is high and the scrap rate is high.
  • An object of the present invention is to overcome the deficiencies in the prior art and to provide an electronic fuel injection system for an engine which can reduce emissions, improve economy, operate control automation, and have high reliability.
  • the engine electronically controlled fuel injection system includes an electric oil pump, an oil delivery pipe, an electronically controlled fuel injection pump, a high pressure oil pipe, an electronically controlled fuel injector, an oil metering wide and an electronic control unit, and is electrically controlled.
  • the fuel injection pump is equipped with a wide oil inlet meter, and the oil inlet metering can adjust the oil pressure in the pressure storage chamber of the electronically controlled fuel injection pump; the outlet end of the electric oil pump is connected to the inlet end of the electronically controlled fuel injection pump through the oil pipeline, The outlet end of the controlled fuel injection pump is connected to the inlet end of the electronically controlled fuel injector through a high pressure oil pipe; the electronic control unit is connected to the oil inlet meter through an electronic control line, and the electronic control unit is connected to the electronically controlled fuel injector through an electronic control line. .
  • the invention ensures that the electronically controlled fuel injector injects fuel under a higher pump end pressure, and obtains good economy.
  • the invention reduces emissions and improves economy, and the operation control of the invention is automated and reliable.
  • Figure 1 is a schematic view of the structure of the present invention.
  • FIG. 2 is a schematic view showing the structure of an electric control fuel injection pump of the present invention.
  • the engine electronically controlled fuel injection system includes an electric oil pump 1, an oil delivery pipe 2, an electronically controlled fuel injection pump 3, a high pressure oil pipe 4, an electronically controlled fuel injector 5, an oil metering width 9 and an electronic control unit 6,
  • the electric control fuel injection pump 3 is installed with an oil inlet metering width 9, and the oil inlet metering width 9 can adjust the oil pressure in the pressure accumulating chamber 8 of the electric control fuel injection pump 3; the outlet end of the electric oil pump 1 and the electronically controlled spray
  • the inlet end of the oil pump 3 is connected through the oil delivery pipe 2, and the outlet end of the electronically controlled fuel injection pump 3 is connected to the inlet end of the electronically controlled fuel injector 5 through the high pressure oil pipe 4;
  • various types of sensors 7 are connected to the electronic control unit 6, the electronic control unit 6 is connected to the oil metering width 9 through the electronic control line, and the electronic control unit 6 and the electronically controlled fuel injector 5 are connected by an electronic control line.
  • the electric oil pump 1 is installed at the front end of the electronically controlled fuel injection pump 3, and controls the opening and closing of the electric oil pump 1 through the battery to supply low pressure fuel to the electronically controlled fuel injection pump 3.
  • the electronically controlled fuel injection pump 3 is driven by the camshaft of the engine, which is driven by the crankshaft of the engine. Each time the engine camshaft rotates, the plunger pumps a pressurized fuel and stores it in the accumulator chamber 8. The amount of oil in the accumulator chamber 8 can be controlled by the inlet gauge.
  • the electronic control unit (ECU) 6 collects the state parameters of the engine and the electronic control system monitored by each sensor, and sends a precise control signal through the built-in control strategy and data MAP, and drives the electromagnetic to generate electromagnetic force to drive the corresponding actuator to perform the action.
  • the oil supply, oil pressure, fuel injection angle, fuel injection quantity and injector law are adjusted according to demand.
  • Various types of sensors 7 include a rotational speed sensor, an oil temperature sensor, an oil pressure sensor, and the like.
  • the speed sensor collects the engine speed signal and transmits it to the electronic control unit (ECU) 6 to read the calibration MAP map.
  • the oil temperature sensor collects the engine oil temperature and sends it to the electronic control unit (ECU) 6.
  • the oil pressure sensor collects the engine oil temperature and sends it to the electronic control unit (ECU) 6.
  • an alarm or automatic shutdown occurs.
  • the electric oil pump 1 draws fuel from the fuel tank and inputs the electronically controlled fuel injection pump 3.
  • the electronically controlled fuel injection pump 3 stores the fuel pressure in the pressure accumulating chamber 8, and the fuel in the pressure accumulating chamber 8 passes through the high pressure oil pipe 4 and then feeds the high pressure fuel into the electricity. Control the injector 5.
  • the high pressure in the accumulator chamber 8 of the electronically controlled fuel injection pump 3 is directly used for injection, and the pressure in the accumulator chamber 8 is continuous high pressure, and the oil pressure in the accumulator chamber 8 can be controlled by the inlet gauge.
  • the electronically controlled fuel injection system of the present invention can flexibly adjust the oil pressure in the accumulator chamber 8 according to the engine load condition as well as the economical and exhaustive requirements, and particularly optimizes the low speed performance of the engine.
  • the electromagnetic timing on the electronically controlled injector 5 controls the injection timing, the injection amount, and the injection rate. It is also possible to flexibly adjust the interval of the main injection under different operating conditions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

一种单缸风冷柴油机电控燃油喷射***，包括电动输油泵（1）、输油管（2）、电控喷油泵（3）、高压油管（4）、电控喷油器（5）、进油计量阀（9）与电子控制单元（6），在电控喷油泵（3）上安装有进油计量阀（9），进油计量阀（9）能对电控喷油泵（3）的蓄压腔（8）内的油压进行调节；电动输油泵（1）的出口端与电控喷油泵（3）的进口端通过输油管（2）相连，电控喷油泵（3）的出口端与电控喷油器（5）的进口端通过高压油管（4）相连；所述电子控制单元（6）与进油计量阀（9）通过电控线路相连，电子控制单元（6）与电控喷油器（5）通过电控线路相连。该电控燃油喷射***操作控制自动化、可靠性较高，保证了电控喷油器在较高的泵端压力下喷射燃油，降低了排放、提高了经济性。

Description

发动机电控燃油喷射***
技术领域
本发明涉及一种单缸风冷柴油机电控燃油喷射***，本发明属于内 燃机技术领域。
背景技术
传统的柴油机燃油喷射***为机械式， 油压大小不易控制， 使得 柴油机的排放较高，经济性较差。相对位置度很难保证，为了达到要求， 加工成本很高， 切废品率很高。
发明内容
本发明的目的是克服现有技术中存在的不足，提供一种可以降低排 放、 提高经济性、 操作控制自动化、 可靠性较高的发动机电控燃油喷射 ***。
按照本发明提供的技术方案， 所述发动机电控燃油喷射***， 包括 电动输油泵、 输油管、 电控喷油泵、 高压油管、 电控喷油器、 进油计量 阔与电子控制单元， 在电控喷油泵上安装有进油计量阔， 进油计量阔能 对电控喷油泵的蓄压腔内的油压进行调节； 电动输油泵的出口端与电控 喷油泵的进口端通过输油管相连， 电控喷油泵的出口端与电控喷油器的 进口端通过高压油管相连；所述电子控制单元与进油计量阔通过电控线 路相连， 电子控制单元与电控喷油器通过电控线路相连。
本发明保证了电控喷油器在较高的泵端压力下喷射燃油，获得良好 的经济性，本发明降低了排放、提高了经济性，本发明操作控制自动化、 可靠性较高。 附图说明
图 1是本发明的结构示意图。
图 2是本发明中电控喷油泵的结构示意图。
具体实施方式
下面结合具体实例对本发明作进一歩说明。
如图所示， 该发动机电控燃油喷射***， 包括电动输油泵 1、 输油 管 2、 电控喷油泵 3、 高压油管 4、 电控喷油器 5、 进油计量阔 9与电子 控制单元 6， 在电控喷油泵 3上安装有进油计量阔 9， 进油计量阔 9能 对电控喷油泵 3的蓄压腔 8内的油压进行调节； 电动输油泵 1的出口端 与电控喷油泵 3的进口端通过输油管 2相连， 电控喷油泵 3的出口端与 电控喷油器 5的进口端通过高压油管 4相连；各类传感器 7与电子控制 单元 6相连， 所述电子控制单元 6与进油计量阔 9通过电控线路相连， 电子控制单元 6与电控喷油器 5通过电控线路相连。
电动输油泵 1安装在电控喷油泵 3的前端，通过蓄电池控制电动输 油泵 1的开启与关闭， 为电控喷油泵 3提供低压燃油。 电控喷油泵 3由 发动机的凸轮轴驱动， 凸轮轴由发动机的曲轴驱动。发动机凸轮轴每转 一圈， 柱塞泵送一次加压燃油并储存在蓄压腔 8内， 蓄压腔 8内的油量 可以通过进油计量阔 9控制。
电子控制单元（ECU ) 6采集各传感器监测的发动机及电控***状态 参数， 通过内置的控制策略及数据 MAP发出精确控制信号， 并驱动电磁 阔产生电磁力， 以驱动对应执行器进行动作， 使供油量、 油压、 喷油角 度、 喷油量和喷油器规律按需求反馈调节。 各类传感器 7包括转速传感器、机油温度传感器、机油压力传感器 等。转速传感器采集发动机转速信号传给电子控制单元（ECU) 6读取标 定 MAP图。机油温度传感器采集发动机机油温度传给电子控制单元 (ECU) 6，达到电子控制单元（ECU) 6设定的警戒值时发出报警或者自动停机。 机油压力传感器采集发动机机油温度传给电子控制单元（ECU) 6， 达到 电子控制单元 （ECU) 6设定的警戒值时发出报警或者自动停机。
电动输油泵 1从油箱抽出燃油输入电控喷油泵 3， 电控喷油泵 3将 燃油加压储存在蓄压腔 8内，蓄压腔 8内的燃油通过高压油管 4再将高 压燃油送入电控喷油器 5。
电控喷油泵 3的蓄压腔 8内的高压直接用于喷射，蓄压腔 8内是持 续高压， 而且蓄压腔 8内的油压大小可以通过进油计量阔 9进行控制。 本发明的电控燃油喷射***可以根据发动机负荷状况以及经济性和排 放性的要求对蓄压腔 8内的油压进行灵活调节，尤其优化了发动机的低 速性能。通过电控喷油器 5上的电磁阔控制喷射定时、 喷射量以及喷速 率， 还可以灵活调节不同工况下主喷射的间隔。

Claims

权 利 要 求
1. 一种发动机电控燃油喷射***， 其特征是： 包括电动输油泵 （1)、 输油管 （2)、 电控喷油泵 （3)、 高压油管 （4)、 电控喷油器 （5)、 进油计量阔 (9) 与电子控制单元 （6)， 在电控喷油泵 （3) 上安装 有进油计量阔 （9)， 进油计量阔 (9) 能对电控喷油泵 （3) 的蓄压 腔 （8) 内的油压进行调节； 电动输油泵 （1) 的出口端与电控喷油 泵 （3) 的进口端通过输油管 （2) 相连， 电控喷油泵 （3) 的出口端 与电控喷油器 （5) 的进口端通过高压油管 （4) 相连； 所述电子控 制单元 （6) 与进油计量阔 (9) 通过电控线路相连， 电子控制单元 (6) 与电控喷油器 （5) 通过电控线路相连。
PCT/CN2013/085525 2013-01-10 2013-10-18 发动机电控燃油喷射*** WO2014107980A1 (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201310008323.0 2013-01-10
CN201320011596.6 2013-01-10
CN 201320011596 CN203098109U (zh) 2013-01-10 2013-01-10 发动机电控燃油喷射***
CN2013100083230A CN103047059A (zh) 2013-01-10 2013-01-10 发动机电控燃油喷射***

Publications (1)

Publication Number Publication Date
WO2014107980A1 true WO2014107980A1 (zh) 2014-07-17

Family

ID=51166530

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/085525 WO2014107980A1 (zh) 2013-01-10 2013-10-18 发动机电控燃油喷射***

Country Status (1)

Country Link
WO (1) WO2014107980A1 (zh)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7207319B2 (en) * 2004-03-11 2007-04-24 Denso Corporation Fuel injection system having electric low-pressure pump
JP2009221906A (ja) * 2008-03-14 2009-10-01 Denso Corp 筒内噴射式内燃機関の低圧ポンプ制御装置
CN101592104A (zh) * 2008-05-28 2009-12-02 Gm全球科技运作股份有限公司 用于控制高压泵的方法和***
CN202250509U (zh) * 2011-08-31 2012-05-30 湖南奔腾动力科技有限公司 一种柴油机高压共轨燃油***
JP2012225193A (ja) * 2011-04-15 2012-11-15 Toyota Motor Corp 内燃機関の燃料噴射制御システム
CN103047059A (zh) * 2013-01-10 2013-04-17 无锡开普机械有限公司 发动机电控燃油喷射***
CN203098109U (zh) * 2013-01-10 2013-07-31 无锡开普机械有限公司 发动机电控燃油喷射***

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7207319B2 (en) * 2004-03-11 2007-04-24 Denso Corporation Fuel injection system having electric low-pressure pump
JP2009221906A (ja) * 2008-03-14 2009-10-01 Denso Corp 筒内噴射式内燃機関の低圧ポンプ制御装置
CN101592104A (zh) * 2008-05-28 2009-12-02 Gm全球科技运作股份有限公司 用于控制高压泵的方法和***
JP2012225193A (ja) * 2011-04-15 2012-11-15 Toyota Motor Corp 内燃機関の燃料噴射制御システム
CN202250509U (zh) * 2011-08-31 2012-05-30 湖南奔腾动力科技有限公司 一种柴油机高压共轨燃油***
CN103047059A (zh) * 2013-01-10 2013-04-17 无锡开普机械有限公司 发动机电控燃油喷射***
CN203098109U (zh) * 2013-01-10 2013-07-31 无锡开普机械有限公司 发动机电控燃油喷射***

Similar Documents

Publication Publication Date Title
US8483932B2 (en) Fuel delivery system control strategy
US9002619B2 (en) Apparatus for controlling a vehicle
JP4424395B2 (ja) 内燃機関の燃料噴射制御装置
CN102278221B (zh) 缸内燃料喷射式内燃机的控制装置
US7320312B2 (en) Fuel injection device for internal combustion engine
US7634985B2 (en) Common rail fuel control system
WO2014000413A1 (zh) V型柴油机用电控高压共轨燃油喷射***
JP2007016663A5 (zh)
JP5141723B2 (ja) 内燃機関の燃料噴射制御装置
CN105697095B (zh) 用于控制发动机制动装置的方法、发动机制动装置以及车辆
EP3408530A1 (en) Injection system, apparatus and method for controlling the quantity of fuel injected
US9169817B2 (en) Fuel pump with metering valve
CN103047059A (zh) 发动机电控燃油喷射***
CN202690281U (zh) V型柴油机用电控高压共轨燃油喷射***
CN101871403B (zh) 在驱动状态期间压力传感器的诊断***和方法
JP2012229623A (ja) 内燃機関の高圧燃料供給装置
CN203430672U (zh) 电控单体泵燃油喷射***
CN203098109U (zh) 发动机电控燃油喷射***
CN101871404B (zh) 在怠速状态期间压力传感器的诊断***和方法
WO2014107980A1 (zh) 发动机电控燃油喷射***
CN206429311U (zh) 泵喷嘴柴油发动机燃油电控装置
CN206988005U (zh) 柴油发动机燃油喷射微型电控单体组合泵
CN203394669U (zh) 一种电控喷射型立式单缸柴油机
CN107131082A (zh) 柴油发动机燃油喷射微型电控单体组合泵
CN103321769A (zh) 电控单体泵燃油喷射***

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13870755

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13870755

Country of ref document: EP

Kind code of ref document: A1