• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A fuel injector clamp takes the form of a generally oval-shaped ring manufactured from pipe so that the side walls on the minor axis enclose flats on opposite sides of the injector body and the end walls on he major axis each encircle a respective fixing bolt. The end walls encircle more than 180 degrees of the circumference of the bolt. The side walls adjacent each end are pinched inwards towards one another, but are not fully brought together. Encirclement of the fixing bolts in this way serves to increase the contact area between the bolts and clamp to ensure improved clamping, and also produces an inherent resistance to spreading of the side walls. The lower edges of the side walls are each formed with a pair of indentations so that the portion therebetween is arcuate and forms a point contact with a respective bearing shoulder on the injector body. These indentations are formed by deformation of the edges of the side wall so as to avoid machining. Thus a tiltable clamp can be provided in a simple manner from a uniform width of pipe without involving any material waste.
    公开号:SU1443812A3
    申请号:SU843773888
    申请日:1984-07-26
    公开日:1988-12-07
    发明作者:Найт Майкл；Джордж Мур Рональд
    申请人:Перкинс Энджинз Груп Лимитед (Фирма)；
    IPC主号:
    专利说明:

    0if2.3
    The invention relates to engine building, in particular, to fuel injection equipment of internal combustion engines, and can be used to attach fuel injectors to the cylinder heads of engines.
    The purpose of the invention is to simplify the construction and improve reliability by making a clamp from a pipe billet with shaping the working surfaces with the help of deformation, as well as increasing the rigidity of the end walls by increasing the angle of the fastening bolt,
    Figure 1 shows the nozzle attachment assembly on the engine head using the proposed clamp, axle
    howl cut; figure 2 - clamp, side view; on fig.Z - the same, top view; figure 4 - the same, side view, option
    The clip for the fuel injector 1, comprising a housing 2 with an inlet fitting 3, flats 4 and a collar 5 to which the gun 7 is attached with a nut 6, is made in the form of an oval ring 8 (FIG. 3) made of a pipe, the walls 9 along the small axis A-A cover the flats 4 supported on the flange 5, made on the opposite side walls of the body 2 of the nozzle 1, and the end walls 10 of the clamp along the major axis B-B cover the corresponding fastening bolts} 1.
    Each end wall 10 of the clamp covers the corresponding5give mounting bolt AND at an angle of more than 180 but less than 360 of the circumference of the bolt P,
    Each lower edge 12 of the side walls 9 is provided with a pair of recesses 13, a section between which is curved and forms a contact point with a corresponding support shoulder 5 on the core 2 of the injector J.
    The depth of the shadow 13 is made by deforming the edges 12 of the side walls 9.
    The side walls 9 provide a predetermined angular position of the nozzle in the engine head 14, with the side walls 9 in the transitional place 15 inclined towards each other, which ensures that the bolt 11 is at an angle of more than 180% but not less than 360 ° with the formation of a partially closed socket 16 which includes bolt 11, sockets 16 hold bolts 11 and guide them into place during assembly.
    0
    five
    0
    0
    5 5
    0
    five
    Q
    The upper and lower edges 12 of the clip are parallel, and the contact of the clip with the nozzle is made at points between curvilinear sections of the lower edge 12 -c of the planes of the flanges 5 opposite the nozzle body 2. The distance between the recesses 13 on each side of both edges 12 is equal to or slightly larger than the width of the shoulder 5, which ensures that the clamp deviates in a certain angular range without touching the flat part of the lower edge 12 with the edges of the shoulder 5, and the curvilinear portion of the lower edge 12 overlaps in the process of fastening the clamp along the plane of the flange 5, ensuring a constant downward force of the clamping force.
    The upper and lower edges 12 are identical in shape and size, which allows the clamp to be turned over during use.
    Option clamp (figure 4) is made with a curved section of the lower edge 12, protruding beyond. Such a clamp is intended for nozzles with a reduced support shoulder 5 and can be obtained by machining the flat part of the lower edge 12 of the main clamp variant (figure 1).
    The clamp functions as follows.
    A nozzle is installed on the nozzle installed in the engine head 14, and the fastening bolts 11 are put on the clamp and the bolts 1 are inserted into its sockets 16. Then the bolts 1 are fixed evenly in the socket, ensuring its sealing in the engine head 14.
    The disassembly of the nozzle attachment assembly is carried out in reverse order.
    The proposed clamp for a fuel injector provides a simplified design, which makes it possible to apply wasteless technology of its manufacture from a tubular billet without the use of complex machining operations, shaping it by compressing the billet, and also increasing the reliability of the injector mounting unit due to eliminating the divergence of the side walls under load.
    314438
    权利要求:
    Claims (3)
    [1]
    1. Clamp for a fuel injector, made in the form of an oval ring made of a pipe, with side walls along a small axis covering flats supported by a collar made on opposite side walls of the nozzle body, and end Q walls along a large axis do not fully cover the corresponding fastening bolts characterized in that, in order to simplify the design and increase reliability, each
    Your wall covers the corresponding mounting bolt at an angle of more than 180 °.
    [2]
    2. Clamp POP.1, characterized in that each lower edge of the side walls is provided with a pair of recesses, between which a curvilinear shape is formed and forms a contact point with a corresponding support collar on the nozzle body.
    [3]
    3. Clamp according to claim 2, characterized in that the recesses are made by deforming the edges of the side walls.
    7G
    eleven
    eight
    /
    FIG. 2
    Phi2.
    类似技术:
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    同族专利:
    公开号 | 公开日
    US4901700A|1990-02-20|
    ZA838800B|1984-08-29|
    JPS60500343A|1985-03-14|
    IN159427B|1987-05-16|
    CA1204971A|1986-05-27|
    WO1984002161A1|1984-06-07|
    PL244765A1|1984-07-16|
    ES275949U|1984-10-16|
    AU2265883A|1984-06-18|
    AU562141B2|1987-05-28|
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    EP0126134A1|1984-11-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EA019822B1|2010-09-10|2014-06-30|БЁРДЖЕСС-НОРТОН ЭмЭфДжи. КО., ИНК.|Fuel injector clamp and method of forming same|GB875438A|1959-03-20|1961-08-23|Daimler Benz Ag|New or improved thermally insulating means for mounting injection nozzles on an internal combustion engine|
    US4133321A|1972-12-21|1979-01-09|Robert Bosch Gmbh|Clamping device for fuel injection nozzles|
    DE2343713C2|1973-08-30|1975-08-07|Artur 7241 Tumlingen Fischer|Suspension device, in particular for a false ceiling|
    AT329325B|1974-11-08|1976-05-10|Steyr Daimler Puch Ag|GLASSES FOR FASTENING THE NOZZLE BRACKET OF FUEL INJECTION ENGINE|
    GB1549740A|1976-04-15|1979-08-08|Warszawskie Zaklady Mech Pzl W|Internal combustion engine having a fuel injector and yoke|
    US4246877A|1979-07-27|1981-01-27|General Motors Corporation|Notched injector hold-down clamp|
    DE3010328A1|1980-03-18|1981-09-24|Robert Bosch Gmbh, 7000 Stuttgart|IC engine fuel injection nozzle - has radial pipe connection with sealing force along nozzle axis|GB2177157B|1985-06-28|1988-11-09|Perkins Engines|Fuel injector fastening|
    US5211149A|1990-06-29|1993-05-18|Siemens Automotive L.P.|Fuel rail for bottom and side fed injectors|
    US5317911A|1992-03-16|1994-06-07|Yaraschefski Steven M|Fixture for torquing components of an assembly|
    US5329906A|1993-08-16|1994-07-19|Energy Conversions, Inc.|Low emission dual fuel valve structure|
    US5697345A|1994-12-28|1997-12-16|Cummins Engine Company, Inc.|Clamping load distributor for a fuel injector|
    US5706786A|1994-12-28|1998-01-13|Cummins Engine Company, Inc.|Distortion reducing load ring for a fuel injector|
    JP2877117B2|1996-12-13|1999-03-31|いすゞ自動車株式会社|Direct injection multi-cylinder engine|
    DE19705990A1|1997-02-17|1998-08-20|Bosch Gmbh Robert|Mounting device for mounting a fuel injector|
    US5870995A|1997-06-10|1999-02-16|Caterpillar Inc.|Space saving high pressure fluid supply clamp for a fuel injector|
    US5752487A|1997-06-11|1998-05-19|Caterpillar Inc.|Injector combustion gas seal|
    JP4066286B2|1998-08-31|2008-03-26|ヤマハマリン株式会社|In-cylinder fuel injection engine|
    DE19857474A1|1998-12-14|2000-06-15|Bosch Gmbh Robert|Assembly device for assembling and disassembling a fuel injector|
    US6289876B1|1999-03-29|2001-09-18|International Truck And Engine Corporation|Fuel injector|
    US6314943B1|1999-10-22|2001-11-13|Ford Global Technologies, Inc.|Fuel supply rail with integrated fuel injector load spring|
    DE10025984B4|2000-05-25|2014-07-03|Continental Automotive Gmbh|Clamping means for clamping an injection valve|
    DE10032003A1|2000-06-30|2002-01-10|Fev Motorentech Gmbh|Piston-type internal combustion engine with a rigid yoke for the sealing fastening of fuel injection devices|
    DE10109408A1|2001-02-28|2002-09-05|Bosch Gmbh Robert|fastening device|
    US6637776B2|2001-06-13|2003-10-28|Cummins Inc.|Fluid manifold connector and fluid manifold assembly|
    DE10155678A1|2001-11-13|2003-05-22|Bosch Gmbh Robert|Clamp, to lock a fuel injection valve in its drilling through the cylinder head of an IC motor, has a clamp paw which presses symmetrically against a linear bearing surface without a tilting movement|
    US6640784B1|2002-10-09|2003-11-04|Robert Bosch Corporation|Spark ignition direct injection system|
    US6895939B2|2002-12-20|2005-05-24|Caterpillar Inc|Fuel injector clamping assembly|
    JP2004360586A|2003-06-05|2004-12-24|Mitsubishi Electric Corp|Fuel injection valve device for injection inside cylinder|
    EP1529955A1|2003-11-06|2005-05-11|Renault s.a.s.|Fuel injector clamping means|
    EP1672193A1|2004-12-20|2006-06-21|Kwang Yang Motor Co., Ltd.|Secondary air introducing structure for vehicles|
    DE102006019306A1|2006-04-26|2007-10-31|Robert Bosch Gmbh|Fastener for fuel injector of e.g. common rail injection system, has bearing surface formed at inner edge of fastener that is implemented as locking bracket, where latch overlapping injector body is implemented in inner edge of bracket|
    EP2241745B1|2009-04-15|2012-10-24|Continental Automotive GmbH|Coupling device|
    US8522754B2|2009-07-01|2013-09-03|International Engine Intellectual Property Company, Llc.|Fuel injector clamp|
    ES2547414T3|2010-12-15|2015-10-06|Fpt Industrial S.P.A.|System for fixing an injector to the engine head of a vehicle, method for fixing the injector, and method of manufacturing the system|
    EP3221575B1|2014-11-19|2021-01-06|Vitesco Technologies GmbH|Fuel rail assembly for an internal combustion engine|
    GB2546500B|2016-01-19|2019-07-24|Perkins Engines Co Ltd|Reversible injector clamp|
    US10378499B2|2016-12-09|2019-08-13|Caterpillar Inc.|Common rail accumulator clamp|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB8233873|1982-11-27|
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