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CN107143450A - 喷油器雾化特性可调节球面结构 - Google Patents

喷油器雾化特性可调节球面结构 Download PDF

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Publication number
CN107143450A
CN107143450A CN201710530141.8A CN201710530141A CN107143450A CN 107143450 A CN107143450 A CN 107143450A CN 201710530141 A CN201710530141 A CN 201710530141A CN 107143450 A CN107143450 A CN 107143450A
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CN
China
Prior art keywords
valve seat
deflector
fuel injector
valve
armature
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201710530141.8A
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English (en)
Inventor
林林涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Profit Auto Efi Technology Co Ltd
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Dongguan Profit Auto Efi Technology Co Ltd
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Publication date
Application filed by Dongguan Profit Auto Efi Technology Co Ltd filed Critical Dongguan Profit Auto Efi Technology Co Ltd
Priority to CN201710530141.8A priority Critical patent/CN107143450A/zh
Publication of CN107143450A publication Critical patent/CN107143450A/zh
Pending legal-status Critical Current

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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
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • 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
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • 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
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • F02M61/1813—Discharge orifices having different orientations with respect to valve member direction of movement, e.g. orientations being such that fuel jets emerging from discharge orifices collide with each other
    • 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
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1853—Orifice plates
    • 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
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1886—Details of valve seats not covered by groups F02M61/1866 - F02M61/188
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
    • F02M63/0036—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat with spherical or partly spherical shaped valve member ends

Landscapes

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

Abstract

本发明公开了一种喷油器雾化特性可调节球面结构，包括于喷嘴处设置的阀体结构，所述阀体结构包括自上而下设置的衔铁、阀座和导流板，所述衔铁在回位弹簧的作用下将球阀向下压紧密封在阀座顶部的圆锥进油孔内，所述导流板为弧度向下的球形板，所述球形板上均布开设有径向的喷油孔，导流板与阀座之间形成导流腔，所述导流腔与阀座上的圆锥进油孔相通。本发明产生的油雾颗粒小，雾化均匀，喷射角度调整范围大，流量系数稳定，有利于在发动机内爆炸燃烧。

Description

喷油器雾化特性可调节球面结构
技术领域
本发明涉及电控喷油器内部结构，具体为一种喷油器雾化特性可调节球面结构。
背景技术
喷油器应用于脉动液体精密计量及雾化，如发动机燃油计量及燃烧控制，喷油器接受ECU(电子控制单元)送来的喷油脉冲信号，精确控制燃油喷射量。
喷油器的结构主要由电磁机构、阀体机构、雾化机构、计量机构及流道机构构成。
喷油雾化特性为喷油器的一个重要技术指标，体现在雾化粒度、油雾分布、油束方向、射程和扩散锥角等方面。为实现喷油器的雾化功能，传统雾化机构的技术改进方案中，衔铁在回位弹簧作用下将密封钢球压紧封闭在阀座顶部的锥形进油孔上，阀座底部的导流腔外设有导流板，所述导流板上圆周均布开设细小的喷油孔。
上述改进的雾化机构虽然使雾化效果有所提高，但实际的使用效果不尽人意，其雾化程度与扩散锥角远达不到理想要求。
发明内容
针对现有技术的不足，本发明所要解决的技术问题是提出了一种可进一步强化雾化效果的喷油器雾化特性可调节球面结构。
能够解决上述技术问题的喷油器雾化特性可调节球面结构，其技术方案包括于喷嘴处设置的阀体结构，所述阀体结构包括自上而下设置的衔铁、阀座和导流板，所述衔铁在回位弹簧的作用下将球阀向下压紧密封在阀座顶部的圆锥进油孔内，所不同的是所述导流板为弧度向下的球形板，所述球形板上均布开设有径向的喷油孔，导流板与阀座之间形成导流腔，所述导流腔与阀座上的圆锥进油孔相通。
为适应喷射角度的改变，所述导流板的球形半径设计在R3mm～R30mm之间。
为匹配导流板的形状，所述阀座具有弧度与导流板一致的球形底部。
本发明的有益效果：
1、本发明喷油器雾化特性可调节球面结构产生的油雾颗粒小，雾化均匀，喷射角度调整范围大。
2、本发明结构中，喷油孔径向于导流板的球形面，流量系数非常稳定，有利于在发动机内爆炸燃烧。
附图说明
图1为本发明一种实施方式的结构示意图。
图2为图1实施方式中A处的局部放大图。
图号标识：1、衔铁；2、阀座；3、回位弹簧；4、导流板；5、喷油孔；6、球阀；7、导流腔；8、喷油器；9、隔磁管。
具体实施方式
下面结合附图所示实施方式对本发明的技术方案作进一步说明。
本发明喷油器雾化特性可调节球面结构，其技术方案包括设于喷油器8喷嘴(A)处隔磁管9下口的阀体结构，所述阀体结构包括自上而下同轴设置的衔铁1、球阀6、阀座2和导流板4，如图1、图2所示。
所述衔铁1上部的铁芯孔内压装有回位弹簧3，所述球阀6固连于衔铁1下部的铁芯管底部，所述铁芯管上圆周均布开设有径向的过流孔，在回位弹簧3作用下，衔铁1下部的铁芯管将球阀6压实密封在阀座2顶部开设的圆锥进油孔内，所述阀座2底部形状为弧度向下的球形，所述导流板4为与阀座2球形底部弧度一致的球形板，球形导流板4与阀座2的球形底部之间形成球形导流腔7，所述导流腔7向上与阀座2的圆锥进油孔相通，如图2所示。
所述导流板4上均布开设有喷油孔5，所述喷油孔5的轴线径向于导流板4的球形板面且与导流腔7相通，如图2所示。
根据不同的雾化特性要求，所述导流板4的球形半径设计在R3mm～R30mm之间。
本发明的喷油方式为：
当电驱动回路加上控制信号时，衔铁1克服回位弹簧3的弹力向上与铁芯吸合，衔铁1带动球阀6打开阀座2的圆锥进油孔，油流通过阀座2的圆锥进油孔进入导流腔7蓄压，压力油再从导流板4的喷油孔5向外喷射油雾，由此保证了油雾的大锥角扩散和颗粒的均匀性，(与空气混合后)更加利于在发动机的燃烧室内充分爆炸燃烧，从而获得更高的功率和热效率。

Claims (3)

1.喷油器雾化特性可调节球面结构，包括于喷嘴处设置的阀体结构，所述阀体结构包括自上而下设置的衔铁(1)、阀座(2)和导流板(4)，所述衔铁(1)在回位弹簧(3)的作用下将球阀(6)向下压紧密封在阀座(2)顶部的圆锥进油孔内，其特征在于：所述导流板(4)为弧度向下的球形板，所述球形板上均布开设有径向的喷油孔(5)，导流板(4)与阀座(2)之间形成导流腔(7)，所述导流腔(7)与阀座(2)上的圆锥进油孔相通。
2.根据权利要求1所述的喷油器雾化特性可调节球面结构，其特征在于：所述导流板(4)的球形半径为R3mm～R30mm。
3.根据权利要求1或2所述的喷油器雾化特性可调节球面结构，其特征在于：所述阀座(2)具有弧度与导流板(4)一致的球形底部。
CN201710530141.8A 2017-07-03 2017-07-03 喷油器雾化特性可调节球面结构 Pending CN107143450A (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6502761B1 (en) * 2000-07-28 2003-01-07 Siemens Automotive Corporation Wall effect injector seat
US20040011894A1 (en) * 2001-04-11 2004-01-22 Guenter Dantes Fuel injecton valve
CN101725447A (zh) * 2006-10-16 2010-06-09 株式会社日立制作所 燃料喷射阀及搭载该燃料喷射阀的内燃机的燃料喷射装置
CN102108928A (zh) * 2010-09-08 2011-06-29 柳州源创电喷技术有限公司 单孔雾化电磁阀式精密喷油器
CN206860334U (zh) * 2017-07-03 2018-01-09 东莞市盈森汽车电喷科技有限公司 喷油器雾化特性可调节球面结构

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6502761B1 (en) * 2000-07-28 2003-01-07 Siemens Automotive Corporation Wall effect injector seat
US20040011894A1 (en) * 2001-04-11 2004-01-22 Guenter Dantes Fuel injecton valve
CN101725447A (zh) * 2006-10-16 2010-06-09 株式会社日立制作所 燃料喷射阀及搭载该燃料喷射阀的内燃机的燃料喷射装置
CN102108928A (zh) * 2010-09-08 2011-06-29 柳州源创电喷技术有限公司 单孔雾化电磁阀式精密喷油器
CN206860334U (zh) * 2017-07-03 2018-01-09 东莞市盈森汽车电喷科技有限公司 喷油器雾化特性可调节球面结构

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Application publication date: 20170908