CN101592108B - Valve head outer displacement fuel injector for engine - Google Patents

Valve head outer displacement fuel injector for engine Download PDF

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Publication number
CN101592108B
CN101592108B CN 200910136037 CN200910136037A CN101592108B CN 101592108 B CN101592108 B CN 101592108B CN 200910136037 CN200910136037 CN 200910136037 CN 200910136037 A CN200910136037 A CN 200910136037A CN 101592108 B CN101592108 B CN 101592108B
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valve
engine
provided
fuel
valve head
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CN 200910136037
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CN101592108A (en
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靳北彪
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靳北彪
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Abstract

The invention discloses a valve head outer displacement fuel injector for an engine, which comprises a valve shell and a fuel inlet interface. An inner cavity of the valve shell is provided with a valve body; the valve body consists of a valve head, a valve tail and a valve rod; the valve tail is connected with the valve shell directly or through a bayonet lock or the bayonet lock and a bearing pad; and the fuel inlet interface is in sealing connection with the valve shell directly or indirectly. The valve head outer displacement fuel injector for the engine has simple structure, no fuel return coupling piece of a conventional fuel injector, low processing and manufacturing cost, small volume, accurate fuel injection amount and good high temperature resistance, thereby effectively improving the efficiency and the low emission of the engine.

Description

发动机用阀头外位移燃油喷射器 Displacement engine fuel injector with an external valve head

技术领域 FIELD

[0001] 本发明涉及发动机领域。 [0001] The present invention relates to the field of engine. 背景技术 Background technique

[0002] 燃油喷射技术是提高发动机的效率和降低发动机排放的最重要的技术之一。 [0002] The fuel injection technology to improve the efficiency of the engine and one of the most important techniques to reduce engine emissions. 近年来,在柴油机和汽油机燃油喷射技术领域中,虽然燃油喷射压力不断提高,高压共轨及电磁阀控制喷射技术得到了广泛应用,但是目前的燃油喷射器大多都存在着体积大,制造成本高,燃油喷射响应速度慢等缺点,尤其是柴油喷射器需要设有回油系统、柱塞偶件和阀门, 结构复杂,制约了发动机效率和环保性能的提高。 In recent years, in the technical field injection diesel fuel and gasoline, although the fuel injection pressure continues to increase, high pressure common rail and the injection control solenoid valve has been widely used, but the present fuel injector mostly there is a large volume, high manufacturing costs fuel injection drawbacks such as slow response, in particular a diesel oil injector is provided back to the system needs, and plunger valves, complex structure, restricted the improvement of engine efficiency and environmental performance. 为此本申请人发明了一种结构简单,制造成本低,体积小,喷射响应快的燃油喷射器,从而有效的提高了发动机的效率和低排放性。 For this purpose the invention is simple in structure, low cost, small size, fast response jet fuel injection, thereby effectively improving the efficiency and low emissions of the engine of the present applicant.

发明内容 SUMMARY

[0003] 本发明的目的就是要提供一种结构简单,制造成本低,体积小,喷射反应快的新型发动机用燃油喷射器。 [0003] The object of the present invention is to provide a simple structure, low manufacturing cost, small size, fast response new jet engine fuel injector. 为此本发明公开了一种发动机用阀头外位移燃油喷射器,包括阀壳和进油接口,其目的是这样实现的: To this end the present invention discloses an engine with a displacement of the valve head exterior fuel injector, comprising a valve housing and into the oil interface, the object is achieved:

[0004] 在所述阀壳的内腔内设有阀体,所述阀体由阀头,阀尾和阀杆构成,所述阀尾直接或经卡销或经所述卡销和支承垫与所述阀壳连接,所述进油接口直接或间接与所述阀壳密封连接,在所述进油接口和所述内腔之间设有联通油道,所述联通油道设在所述阀尾或所述阀壳上,将燃油导入所述内腔内,在所述阀壳的下端设有密封配合面,所述阀头与所述阀壳的密封配合面相配合,能与所述密封配合面形成密封,也能与所述密封配合面分离形成燃油通道,所述密封配合面设为平面、锥面或曲面,所述阀杆和/或所述支承垫设为弹性体,所述进油接口直接或经油管与正时脉冲燃油源联通,所述发动机用阀头外位移燃油喷射器不设置回油偶件。 [0004] The valve element is provided within the inner cavity of the valve housing, the valve body from the valve head, a valve and a valve stem end of the valve pin tail either directly or via the card through the card or the support pad and the pin connected to the valve housing, said oil inlet sealing the interface is directly or indirectly connected to the valve housing, is provided in the oil passage Unicom oil into the interface between the lumen and the oil passage provided in the Unicom said upper end of the valve or the valve housing, the fuel introduced into the inner chamber, the lower end of the valve housing is provided with a sealing face, said sealing valve head with the valve housing with the mating surface, and the energy sealing said mating sealing surface is formed, the fuel passage can be formed separately with the mating sealing surface, said sealing surface to mating planar, curved or tapered surface, the valve stem and / or support pad to the elastomer, the oil feed timing pulse interfaces directly or via link pipe and fuel source, said outer valve head displacement engine fuel injector oil return coupling member is not provided.

[0005] 所述阀杆设为弹性直杆式阀杆、弹性曲杆式阀杆或弹簧式阀杆。 [0005] The resilient valve stem to the valve stem rod straight, curved resilient spring stem or rod stem.

[0006] 所述支承垫设为碟弹簧式支承垫。 [0006] The disc spring support pad to the support pad.

[0007] 所述阀壳设为由A半壳体和B半壳体构成式,所述A半壳体和所述B半壳体密封配合,在所述A半壳体和所述B半壳体形成的腔内设有所述阀体,此组合体过盈配合地设置在外壳体内。 [0007] to the valve housing, said half-shells A and B of the mating half shells sealed by the half-shells A and B constituting the half-shell type, half of the half-shells A and B of the cavity of the housing formed with the valve body, this interference fit assembly disposed in the housing body.

[0008] 所述外壳体在所述阀壳与所述阀头处设有包容所述阀头的空腔,此空腔为分配腔,所述分配腔的壁上设有喷射孔,所述喷射孔与所述分配腔联通,所述分配腔为压力室。 [0008] The outer shell is provided in the valve housing and said valve head inclusive of the cavity of the valve head, this cavity of the dispensing chamber, said dispensing chamber wall is provided with injection holes, the the injection hole and the dispensing chamber Unicom, the dispensing chamber is a pressure chamber.

[0009] 在所述内腔内设有导向结构体,所述导向结构体的外侧与所述阀壳紧配合,所述导向结构体的内侧与所述阀杆滑动导向连接,在所述导向结构体上设有燃油通道。 [0009] within the lumen provided with a guide structure, the outer guide and the valve housing structure tight fit, the inner structure of the guide body and the slide guide connection to the valve stem, the guide the structure provided with the fuel passage.

[0010] 本发明中所指的正时脉冲燃油源可以是柴油高压油泵,高压共轨系统,油泵和电磁阀组成的系统或是其他可以按正时关系产生脉冲压力燃油的供油系统,其目的是能够按正时要求产生所需压力的正时脉冲燃油源并按正时关系向本发明所述的燃油喷射器提供高压燃油。 [0010] The fuel source of timing pulses may be referred to in the present invention is a diesel high-pressure pumps, high pressure common rail system the system, pump and solenoid valve or other component supply system may be generated by the fuel pressure pulse timing relationship that purpose fuel source capable of producing pulsed press timing relationship to provide high pressure fuel to the fuel injector of the present invention, the positive pressure in accordance with the desired timing requirements. [0011] 传统的燃油喷射器多半是通过内置弹簧的形变致使阀体产生位移,从而完成了油路的断通。 [0011] Most of the conventional fuel injector is displaced by the valve element causes deformation of the innerspring, thus completing the passage through the break. 基于这种结构,燃油喷射器中就必须存在有可位移的柱塞偶件,由于柱塞偶件的存在,燃油的泄漏也就不可避免,因此在传统的燃油喷射器中必须设有回油系统,喷油器的结构就变得复杂。 Based on this structure, the fuel injector must be present in the coupling member with a displaceable plunger, and the plunger coupling element due to fuel leakage is inevitable, so the oil return must be provided in the conventional fuel injector in system, the structure of the injector becomes complicated. 此外柱塞偶件的加工精度和成本较高,且耐温性能较差。 Furthermore higher costs and machining accuracy Plunger, and poor heat resistance. 在本发明所述的发动机用阀头外位移燃油喷射器中,由于阀杆和/或支承垫是弹性体,当正时脉冲燃油源按照正时关系向内腔提供高压燃油时,高压燃油经进油接口,再经联通油道进入内腔,在燃油压力的作用下,阀杆和/或支承垫自身发生弹性变形,使阀头产生向外的位移,进而密封配合面被分离,高压燃油经密封配合面形成的喷射通道喷射进入气缸。 In the engine according to the present invention, the displacement of the outer valve head in the fuel injector, since the stem and / or support pads is an elastic body, when a timing pulse is provided a high pressure fuel source fuel in accordance with the timing relationship to the lumen, the high pressure fuel through the interface into the oil, then the oil passage into the lumen by China Unicom, under the action of the fuel pressure, the valve stem and / or support pad itself is elastically deformed outward displacement of the valve head, thereby sealing the mating surfaces are separated, the high-pressure fuel injection channels formed by sealing mating faces injected into the cylinder. 当燃油喷射完毕(即油压降低时),阀杆或支承垫在弹性力的作用下,恢复到初始状态,密封接触面被密封。 When the fuel injection is completed (i.e., when the hydraulic pressure decreases), the valve stem or the support pad by an elastic force, back to the initial state, the sealing contact surface is sealed.

[0012] 为了进一步提高燃油喷射的精准性,所述外壳体在所述阀壳与所述阀头处设有包容所述阀头的空腔,此空腔为分配腔,所述分配腔的壁上设有喷射孔,以使通过密封配合面的燃油在分配腔内得以分配,然后进入喷射孔定向喷射。 [0012] In order to further improve the accuracy of fuel injection, inclusive of the outer casing provided with a cavity in the valve head with the valve housing at said valve head, this cavity of the dispensing chamber, said dispensing chamber wall is provided with injection holes, so that the sealing mating surfaces of the fuel is dispensed in the dispensing chamber, and then directed into the injection hole injection.

[0013] 本发明所述发动机用阀头外位移燃油喷射器的支承垫可设为碟弹簧式支承垫或其他弹性结构体,如螺旋弹簧。 [0013] The present invention is an outer support pad engine fuel injector valve head displacement may be set disc spring support pad or other resilient structures, such as a coil spring. 所述联通油道可设在阀杆上,也可设在阀壳上,只要能将高压燃油导入内腔即可。 The Unicom oil passage may be provided on the valve stem, the valve may be provided on the housing so long as a high pressure fuel can be introduced into the lumen. 导向结构体的设置是为了保证阀头位移时不发生偏心现象。 A guide structure in order to ensure the eccentric phenomenon does not occur when the displacement of the valve head. 外壳体的设置是为了将A半壳体和B半壳体与外壳体过盈配合,形成密闭空间,从而保证本发明所述的发动机用阀头外位移燃油喷射器的正常工作。 The outer housing is provided for the half-shells A and B and the outer housing half shells interference fit, form a sealed space, thus ensuring the normal operation of the engine of the present invention, the displacement of the outer valve head of the fuel injector. 本发明的阀壳可设为分体式,A半壳体和B半壳体可设为左半壳体和右半壳体式或上半壳体和下半壳体式。 The valve housing may be set to split the present invention, A and B, half shells may be set to the left housing half shell and an upper half or a right half shell-type housing and a lower half shell formula. 将壳体设为A半壳体和B半壳体以及外壳体的目的在于为机械加工提供方便。 The object of the housing half shell to A and B and the outer housing half shells is to facilitate machining.

[0014] 本发明所述发动机用阀头外位移燃油喷射器不仅可设在燃烧室内,也可设在进气道内。 [0014] The engine of the present invention, the displacement of the outer valve head may be provided not only the fuel injector in the combustion chamber, it may be provided in the inlet.

[0015] 本发明具有的优点 [0015] The present invention has the advantage

[0016] 1.结构简单,没有传统燃油喷射器的回油偶件。 Simple [0016] 1. Structure, no conventional fuel injector oil return coupling member.

[0017] 2.体积小,加工制造容易,并且加工成本低。 [0017] 2. Small volume, easily processable, and low processing costs.

[0018] 3.喷油量精确。 [0018] 3. The fuel injection quantity accuracy.

[0019] 4.耐高温性好。 [0019] 4. The temperature resistance.

附图说明 BRIEF DESCRIPTION

[0020] 图1是本发明的结构布置示意图 [0020] FIG. 1 is a structural schematic arrangement of the present invention

[0021] 图2为本发明阀杆设为弹性直杆式阀杆的结构示意图 [0021] FIG. 2 is a structural diagram of a linear elastic rod to the valve stem of the present invention stem

[0022] 图3为本发明阀杆设为弹性曲杆式阀杆的结构示意图 Schematic structural diagram of [0022] FIG. 3 is an elastic curved rod to the valve stem of the valve stem

[0023] 图4为本发明阀杆设为弹簧式阀杆的结构示意图 Schematic structural diagram of [0023] FIG. 4 of the present invention to stem the stem spring

[0024] 图5为本发明支承垫设为碟弹簧式支承垫的结构示意图 [0024] FIG. 5 is a schematic structural diagram of the invention the support disc spring support pad to pad

[0025] 图6为本发明阀壳设为A半壳体和B半壳体构成式的结构示意图 [0025] FIG. 6 A schematic view of the valve housing and constituting the half-shell-type housing halves to the present invention, B

[0026] 图7为本发明设有包容阀头的分配腔的结构示意图 [0026] FIG. 7 is provided with a schematic structural diagram of the valve head dispensing chamber inclusive of the present invention.

[0027] 附图编号: [0027] BRIEF Number:

[0028] 1.阀壳2.阀体21.阀尾22.阀头23.阀杆 [0028] 1. The valve housing 21. The valve body 2. The end of the valve stem 22. The valve head 23

[0029] 24.弹性直杆式阀杆25.弹性曲杆式阀杆26.弹簧式阀杆 [0029] 24. The linear elastic rod 25. The valve stem 26. The valve stem elastically bent rod spring stem

[0030] 3.支承垫31.卡销32.碟弹簧式支承垫4.进油接口[0031] 5.正时脉冲燃油源6.气缸7.进气道8.内腔 [0030] 3. The support pad 31. The detent 32. A disc spring 4. The support pad into the oil Interface [0031] The fuel source pulse timing cylinder 6. 7. 8. lumen port

[0032] 9.联通油道10.油管11.密封配合面101. A半壳体102. B半壳体 [0032] 9. The oil passage 10. The tubing 11 Unicom sealing surface 101. A mating half shell half shell 102. B

[0033] 103.外壳体201.分配腔202.喷射孔801.导向结构体808.燃油 [0033] The dispensing chamber 103. The outer housing 201. The injection holes 801. 202. 808. fuel guide structure

通道 aisle

具体实施方式: Detailed ways:

[0034] 如图1所示的发动机用阀头外位移燃油喷射器,包括阀壳1,进油接口4,在所述阀壳1的内腔8内设有阀体2,所述阀体2由阀头22,阀尾21和阀杆23构成,所述阀尾21直接或经卡销31或经所述卡销31和支承垫3与所述阀壳1连接,所述进油接口4直接或间接与所述阀壳1密封连接,在所述进油接口4和所述内腔8之间设有联通油道9,所述联通油道9设在所述阀尾21或所述阀壳1上,将燃油导入所述内腔8内,在所述阀壳1的下端设有密封配合面11,所述阀头22与所述阀壳1的密封配合面11相配合,能与所述密封配合面11形成密封,也能与所述密封配合面11分离形成燃油通道,所述密封配合面11设为平面、锥面或曲面,所述阀杆23和/或所述支承垫3设为弹性体,所述进油接口4直接或经油管10与正时脉冲燃油源5联通,所述发动机用阀头外位移燃油喷射器不设置回油偶件。 [0034] FIG 1 shows an engine with a displacement of the outer valve head fuel injectors, comprises a valve housing 1, the interface 4 into the oil in the lumen of the valve housing 8 is equipped with a valve body 2, the valve body 222, the end of the valve stem 21 and valve head 23 is constituted by the end of the valve 21 directly or via a pin 31 or card via the card 31 and the support pin 3 and the pad connected to the valve housing 1, the feed oil Interface 4 directly or indirectly connected to the sealing valve housing into the oil in the interface 4 and the lumen oil passage 9 is provided between the link 8, the link 9 provided in the oil passage 21 or the end of the valve said valve housing 1, the fuel introduced into the inner cavity 8, sealing engagement with the lower end surface 11 in the valve housing 1 of the valve head sealing surface 22 mating with the valve housing 11 cooperates 1, capable of forming a sealing engagement with the sealing surface 11, the fuel passage can be formed with the separating surface 11 sealingly engages the sealing surface 11 to mating planar, curved or tapered surface, the valve stem 23 and / or the elastomeric support pad 3 is set, the interface 4 into the oil pipe 10 directly or via the fuel source pulse timing link 5, the engine displacement of the outer valve head is not provided a fuel injector oil return coupling member.

[0035] 如图2、3和4所示的发动机用阀头外位移燃油喷射器,所述阀杆23设为弹性直杆式阀杆M、弹性曲杆式阀杆25或弹簧式阀杆26。 [0035] Figures 2, 3 and 4 shows an engine with a displacement of the outer fuel injector valve head, the valve stem 23 to the valve stem elastically straight bar M, elastic curved spring rod or stem 25 stem 26.

[0036] 如图5所示的发动机用阀头外位移燃油喷射器,所述支承垫3设为碟弹簧式支承垫32。 [0036] FIG. 5 shows an engine with a displacement of the outer valve head fuel injectors, said support pad 3 is set to disc spring support pad 32.

[0037] 如图6所示的发动机用阀头外位移燃油喷射器,所述阀壳1设为由A半壳体101 和B半壳体102构成式,所述A半壳体101和所述B半壳体102密封配合,在所述A半壳体101和所述B半壳体102形成的腔内设有所述阀体2,此组合体过盈配合地设置在外壳体103 内。 The engine shown in [0037] FIG. 6 with the outer valve head displacement fuel injector, the valve 1 is set to a composed of formula A and B half-shell 101 of the housing half-shell 102, the shell 101 and the half-A said half-shells B 102 sealing engagement cavity 101 in the half-shells a and B of the half-shell 102 formed with the valve body 2, this interference fit assembly disposed within the outer housing 103 .

[0038] 如图7所示的发动机用阀头外位移燃油喷射器,所述外壳体103在所述阀壳1与所述阀头22处设有包容所述阀头22的空腔,此空腔为分配腔201,所述分配腔201的壁上设有喷射孔202,所述喷射孔202与所述分配腔201联通。 [0038] FIG. 7 shows an engine with a displacement of the outer valve head fuel injectors, the outer housing 103 in the valve housing 1 is provided with a cavity of said valve head 22 of the valve head 22 inclusive, this cavity of the dispensing chamber 201, dispensing chamber 201 to the injection hole 202 is provided in the wall of the injection hole 202 and the dispensing chamber 201 Unicom.

[0039] 如图3所示的发动机用阀头外位移燃油喷射器,在所述内腔8内设有导向结构体801,所述导向结构体801的外侧与所述阀壳1紧配合,所述导向结构体801的内侧与所述阀杆25滑动导向连接,在所述导向结构体801上设有燃油通道808。 [0039] FIG 3 shows an engine with a displacement of the outer valve head fuel injectors, in the lumen structure 8 equipped with guide 801, the guide structure outer side of an interference fit with the valve housing 801, the inner guide structure body 801 and the valve stem 25 is slidably connected to the guide, the fuel passage 808 is provided on the guide structure 801.

Claims (6)

1. 一种发动机用阀头外位移燃油喷射器,包括:阀壳(1),进油接口G),其特征在于: 在所述阀壳(1)的内腔(8)内设有阀体O),所述阀体O)由阀头02),阀尾和阀杆(23)构成,所述阀尾(21)直接或经卡销(31)或经所述卡销(31)和支承垫(3)与所述阀壳(1)连接,所述进油接口(4)直接或间接与所述阀壳(1)密封连接,在所述进油接口和所述内腔(¾之间设有联通油道(9),所述联通油道(9)设在所述阀尾或所述阀壳(1)上,将燃油导入所述内腔(8)内,在所述阀壳(1)的下端设有密封配合面(11),所述阀头0¾与所述阀壳(1)的密封配合面(11)相配合,能与所述密封配合面(11)形成密封, 也能与所述密封配合面(11)分离形成燃油通道,所述密封配合面(11)设为平面、锥面或曲面,所述阀杆和/或所述支承垫C3)设为弹性体,所述进油接口(4)直接或经油管(10)与正时脉 An engine with a displacement of the outer valve head fuel injector comprising: a valve housing (1), into the oil interfaces G), characterized in that: the lumen (8) in the valve housing (1) is equipped with a valve body O), said valve body O)), and the end of the valve stem (23) is constituted by a valve head 02, the end of the valve (21) directly or through a bayonet (31) or with the bayonet (31) and a support pad (3) and the valve housing (1), said oil inlet connector (4) sealingly connected directly or indirectly to the valve housing (1), the interface and the lumen into the oil ( Unicom is provided an oil passage (9) between ¾, Unicom said oil passage (9) is provided on the valve or the end of the valve housing (1), the fuel introduced into the inner lumen (8), in the the lower end of said valve housing (1) is provided with a sealing surface (11), said valve head 0¾ of the valve housing (1) with a sealing surface (11) cooperates, capable of mating with the sealing surface (11) forming a seal can (11) separated from the fuel passage formed in sealing engagement with said surface, said mating sealing surface (11) to flat, curved or tapered surface, the valve stem and / or the bearing pads C3) provided an elastomer, the oil inlet connector (4) directly or through a tube (10) with a timing clock 燃油源(¾联通,所述发动机用阀头外位移燃油喷射器不设置回油偶件。 Fuel source (¾ Unicom, the engine displacement of the outer valve head is not provided a fuel injector oil return coupling member.
2.如权利要求1所述的发动机用阀头外位移燃油喷射器,其特征在于:所述阀杆03) 设为弹性直杆式阀杆(M)、弹性曲杆式阀杆0¾或弹簧式阀杆06)。 2. The engine of claim 1, the displacement of the valve head with an outer fuel injector, characterized in that: the valve stem 03) to direct the elastic stem rod (M), the elastic curved spring rod or stem 0¾ valve stem 06).
3.如权利要求1所述的发动机用阀头外位移燃油喷射器,其特征在于:所述支承垫(3) 设为碟弹簧式支承垫(32)。 The engine of the displacement of the valve head with an outer fuel injector as claimed in claim 3, wherein: said support pad (3) to support pads disc spring (32).
4.如权利要求1所述的发动机用阀头外位移燃油喷射器,其特征在于:所述阀壳(1) 设为由A半壳体(101)和B半壳体(10¾构成式,所述A半壳体(101)和所述B半壳体(102) 密封配合,在所述A半壳体(101)和所述B半壳体(10¾形成的腔内设有所述阀体O),所述A半壳体(101)和所述B半壳体(10¾的组合体过盈配合地设置在外壳体(103)内。 4. The engine according to claim 1 of the valve head outer displacement fuel injector, characterized in that: said valve housing (1) A set of half shells (101) and the half shells 10¾ configuration formula B (, a half of the housing (101) and the B half-shell (102) into sealing engagement with the cavity a half-shell (101) and the B half-shell (10¾ formed with said valve body O), said half-shells a (101) B, and the half-shells (10¾ combination of an interference fit provided an outer casing (103).
5.如权利要求4所述的发动机用阀头外位移燃油喷射器,其特征在于:所述外壳体(103)在所述阀壳(1)与所述阀头0¾处设有包容所述阀头0¾的空腔,此空腔为分配腔001),所述分配腔O01)的壁上设有喷射孔002),所述喷射孔(202)与所述分配腔O01) 联通。 The engine as claimed in claim 4, wherein the outer valve head displacement fuel injector, characterized in that: said outer housing (103) provided in said valve housing said containment (1) of the valve head at 0¾ 0¾ the valve head cavity, the cavity of the dispensing chamber 001), the dispensing chamber O01) wall is provided with injection holes 002), said injection hole (202) and the dispensing chamber O01) Unicom.
6.如权利要求1或4所述的发动机用阀头外位移燃油喷射器,其特征在于:在所述内腔(8)内设有导向结构体(801),所述导向结构体(801)的外侧与所述阀壳(1)紧配合,所述导向结构体(801)的内侧与所述阀杆03)滑动导向连接,在所述导向结构体(801)上设有燃油通道(808)。 6. The engine as claimed in claim 1 or 4 with the displacement of the outer valve head fuel injectors, characterized in that: the lumen (8) is provided with a guide structure (801), said guide structure (801 ) is outside of the valve housing (1) close fit inside of the guide structure (801) with the valve stem 03) slidably connected to the guide provided on the fuel passage in the guide structure (801) ( 808).
CN 200910136037 2009-04-24 2009-04-24 Valve head outer displacement fuel injector for engine CN101592108B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1164885A (en) 1995-09-06 1997-11-12 罗伯特·博施有限公司 Fuel injection valve
US5823161A (en) 1995-02-15 1998-10-20 Robert Bosch Gmbh Fuel injection device for internal combustion engines
CN1316036A (en) 1999-07-02 2001-10-03 罗伯特·博施有限公司 Fuel injection valve
CN1360664A (en) 2000-01-10 2002-07-24 罗伯特·博施有限公司 Injector
CN101113708A (en) 2006-07-27 2008-01-30 玛涅蒂玛瑞利动力系公开有限公司 Fuel injector for a direct injection internal combustion engine
CN201391400Y (en) 2009-04-24 2010-01-27 靳北彪 Valve head external displacement fuel ejector used for engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5823161A (en) 1995-02-15 1998-10-20 Robert Bosch Gmbh Fuel injection device for internal combustion engines
CN1164885A (en) 1995-09-06 1997-11-12 罗伯特·博施有限公司 Fuel injection valve
CN1316036A (en) 1999-07-02 2001-10-03 罗伯特·博施有限公司 Fuel injection valve
CN1360664A (en) 2000-01-10 2002-07-24 罗伯特·博施有限公司 Injector
CN101113708A (en) 2006-07-27 2008-01-30 玛涅蒂玛瑞利动力系公开有限公司 Fuel injector for a direct injection internal combustion engine
CN201391400Y (en) 2009-04-24 2010-01-27 靳北彪 Valve head external displacement fuel ejector used for engine

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