• 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 injection pump of the reciprocating plunger type has a plunger having a head engaged by a tappet assembly. The tappet assembly includes a roller engageable with a cam lobe of a cam to impart inward movement to the plunger. Outward movement of the plunger is effected by a lever assembly having a forked end engaging the head and a roller for engagement with a cam lobe.
    公开号:SU1248534A3
    申请号:SU823452815
    申请日:1982-06-11
    公开日:1986-07-30
    发明作者:Криц Мирослав；Максвелл Гаррис Кеннет
    申请人:Лукас Индастриз Плс (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to mechanical engineering, in particular to engine building, and can be used in plunger type fuel pumps with reciprocating plunger movement for an internal combustion engine.
    The purpose of the invention is to increase reliability.
    Fig. 1 shows the lower part of the pump in the plane of the cam and pusher; a transverse vertical section in Fig. 2 shows a pump, an embodiment; on fig.Z - part of the pump, a vertical longitudinal section; Fig, 4 of the pump plan,
    The pump includes a housing 1 with an opening 2 to the crankcase 3. In the opening 2, a plunger 4 and a pusher 5 with a roller 6 are slidably disposed. In the crankcase 3 there is a cam shaft 7 with a cam 8, a profile. which has symmetrical projections coupled with roller 6 for moving the pusher 5 with the plunger in the direction of fuel displacement. On top of the housing 1, there is an adjoining pump head 9, in which an opening 10 is made, with which the plunger 4 with its upper part forms the discharge cavity 11 and the fuel supply unit 12 into the discharge channel 13. The discharge channel 13 can be connected either to the nozzle of the engine cylinder or to a fuel distributor, which is intended to distribute the fuel according to the engine injector p-dz (not shown). The lower part of the plunger has an annular groove 14 and a head 15 which is in contact with the pusher 5, which ensures the transfer of movement from the pusher 5 to the plunger 4 under the action of a cam lug and provides fuel through the fuel delivery unit 12 to the discharge channel 13. The pump also has a movement mechanism the pusher 5 and the plunger 4 in the opposite direction, made in the form of a two-armed lever 16, fastened248534 .2
    in the case 1 by means of a hinge 1 7 with BoatvJoKHocTbK) rotation in the plane of cam 8 and pusher 5, intermediate element 18 and return roller 5, which is placed on the intermediate element and is in conjunction with the profile of cam 8. The end of one shoulder of the two shoulders lever 16 is made in the form of a plug 20 entering the ring groove 14 and mating with the plunger head 15 and the other shoulder; 21 of the pinner 16 is in contact with the intermediate element 18, installed in the housing 1 with the possibility of moving - 15 not relative to it, and with the help of the latter, it is fused with the cam.
    Two shoulders lever 16 can be made by stamping steel
    20 sheets.
    The intermediate element 18 may be made in the form of an additional pusher with the possibility of reciprocating movement
    25 or in the form of a swinging one end of which is hinged in the housing 1, with the return roller 19 being placed either at one end of the additional pusher, or
    30 on the other shoulder swing arm.
    The pump works as follows.
    Cam projections have this.
    35 that, after moving up the plunger 4, the roller 6 of the pusher 5 can move downwards and simultaneously the return roller 19 moves outward to move it backward.
    40 pusher 5 and plunger 4 in the direction of | NII down. The rollers 6 and 19, together with the two-arm lever 16 and the intermediate element 18, are made so that they remain in contact with the surface of the cam 8 as long as possible during its rotation.
    Such an embodiment of the pump reduces the voltage in the cam-pusher transmission, and thereby
    , Q noBbmiaeT its reliability.
    17

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    Editor A.Dolinich
    Compiled by V.Dolgov Tehred E Chizhmar Proofreader S. Shekmar
    Order 4143/60 Circulation 523Subscription
    VNKIPI USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    Production and printing company, Uzhgorod, Projecto st., 4
    权利要求:
    Claims (3)
    [1]
    1. FUEL PUMP OF A PLUNGER TYPE with reciprocating movement of a plunger for an internal combustion engine, comprising a housing with a hole, a plunger and a pusher with a roller slidable in the housing opening, a cam shaft with a cam coupled to the pusher roller to move the pusher with the plunger in the side of the fuel displacement, and the mechanism for moving the pusher and plunger in the opposite direction, made in the form of a two-shouldered lever, pivotally mounted in the housing with the possibility of rotation in a plane cam and pusher, and the end of one arm of the lever is made in the form of a fork mated with a plunger, and the other arm of the lever is mated to the cam via a return roller, characterized in that, in order to increase reliability, the mechanism for moving the pusher and plunger in the opposite direction the side is additionally equipped with an intermediate element mounted in the housing with the possibility of movement relative to it, and the return roller is placed on the intermediate element and with the help of the latter the other shoulder of the two shoulders is mated of the lever with a cam.
    [2]
    2. The pump according to claim 1, characterized in that the intermediate element is made in the form of an additional pusher placed in the housing with the possibility of reciprocating movement, with a return roller placed at one end of the additional pusher, and the other end mating with the other shoulder of the two shoulders lever .
    [3]
    3. The pump according to π.1, characterized in that the intermediate element is made in the form of a swinging lever, one end of which is pivotally mounted in the housing, and a return roller is placed on the other, the other shoulder of the two-shouldered lever is paired with a swinging lever.
    SU <„> 1248534 AZ
    1 1248534
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1248534A3|1986-07-30|Plunger-type fuel pump
    SU927130A3|1982-05-07|Rotary distributing fuel pump
    CA1086588A|1980-09-30|Timing mechanism for a fuel supply system
    US5520155A|1996-05-28|Tappet and plunger assembly adapted for a fluid injection pump
    US5588413A|1996-12-31|Engine assembly with leaf spring cam follower
    JPH05296122A|1993-11-09|Articulated open nozzle high pressure unit fuel injector
    KR930003086B1|1993-04-17|Unit injector
    CA1055343A|1979-05-29|Fuel injector for an internal combustion engine
    GB2079369A|1982-01-20|Fuel pump-injector asseblies for internal combustion engines
    GB2330626A|1999-04-28|Tappet retention for a fuel injector
    JPH07103106A|1995-04-18|Fuel injection device
    US7610888B2|2009-11-03|Non-guided tappet and fuel injector using same
    KR920000394B1|1992-01-13|Fuel injection pump and manufacture thereof
    SU907286A1|1982-02-23|Distributing pump
    KR920004513B1|1992-06-08|Fuel injection pump
    ES8202914A1|1982-02-01|Fuel pumping apparatus
    CN2440949Y|2001-08-01|Oil jetting pump
    RU2124139C1|1998-12-27|High-pressure fuel-injection pump
    SU1763700A1|1992-09-23|Plunger of fuel pump
    RU2293189C2|2007-02-10|Mechanism wear adjuster of internal combustion engine valve mechanism
    WO2018135191A1|2018-07-26|Two-stroke engine
    ES2019764A6|1991-07-01|Fuel injection pump for internal combustion engines.
    KR19980050902A|1998-09-15|Fuel control mechanism for diesel engine
    KR200178456Y1|2000-06-01|Over head valve type desel engine tappet prelubricating apparatus
    JP3568003B2|2004-09-22|Injection pressure adjustment structure for fuel injection valve
    同族专利:
    公开号 | 公开日
    BR8203451A|1983-06-07|
    JPS57212363A|1982-12-27|
    IT1154010B|1987-01-21|
    FR2507692B1|1985-03-22|
    GB2101230A|1983-01-12|
    IT8221837D0|1982-06-11|
    GB2101230B|1984-10-10|
    ES8306834A1|1983-06-01|
    IN156380B|1985-07-06|
    FR2507692A1|1982-12-17|
    US4535641A|1985-08-20|
    DE3222362A1|1983-01-05|
    JPH0361027B2|1991-09-18|
    ES513041A0|1983-06-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2587030C2|2011-06-14|2016-06-10|Вольво Ластвагнар Аб|Fuel system and method for reducing fuel leakage from fuel system|US1444857A|1923-02-13|of detroit |
    GB343688A|1930-01-13|1931-02-26|Edward Ernest Morris|Improvements in positively operated valve gear for internal combustion engines|
    FR919347A|1945-09-07|1947-03-05|Lavalette Ateliers Constr|Injection pump especially for aircraft engines|
    DE1717066U|1953-05-12|1956-02-16|Daimler Benz Ag|DEVICE FOR SECURING THE PUMP TAPPETS OF INJECTION PUMPS AGAINST ROTATION.|
    GB789154A|1955-04-28|1958-01-15|Daimler Benz Ag|New or improved hub mounting for oscillatory levers|
    GB809027A|1955-07-29|1959-02-18|Joseph Henry Suckling|Improvements relating to valve operating mechanism for internal combustion engines|
    FR1262610A|1960-04-06|1961-06-05|Improvements made to reciprocating pumps whose piston is driven by a cam, in particular to fuel injection pumps of this type|
    US3394684A|1966-06-17|1968-07-30|Stark Frank Henry|Means for driving combustion engine poppet valves|
    US3413965A|1967-07-13|1968-12-03|Ford Motor Co|Mechanism for varying the operation of a reciprocating member|
    GB1217318A|1967-09-25|1970-12-31|Cav Ltd|Reciprocating tappet and cam mechanisms|
    US3626469A|1968-11-12|1971-12-07|Gerald J Ashley|Valve gear|
    US3738180A|1970-09-15|1973-06-12|Fiat Spa|Control devices|
    DE2309916C3|1973-02-28|1981-03-26|Franz Prof. Dipl.-Ing. Dr.Techn. 5100 Aachen Pischinger|Fuel injection device for internal combustion engines|
    JPS5842588Y2|1975-03-13|1983-09-27|
    DE2712450C2|1977-03-22|1984-08-23|Klöckner-Humboldt-Deutz AG, 5000 Köln|Pump piston drive for a fuel injection pump for internal combustion engines|ES2025659T3|1986-07-11|1992-04-01|Lucas Industries Public Limited Company|A FUEL INJECTION PUMP.|
    US5081885A|1989-12-28|1992-01-21|Consulier Industries, Inc.|Drive with oscillator-coupled transversely moving gear elements|
    IT1254219B|1992-02-25|1995-09-14|ECCENTRIC PERFECTED FOR ROTARY DOBBY|
    US5364242A|1992-11-25|1994-11-15|Pharmacia Deltec, Inc.|Pump apparatus and method including double activation pump apparatus|
    US5957673A|1993-03-11|1999-09-28|Motorenfabrik Hatz Gmbh & Co. Kg.|Injection pump for diesel engines|
    DE4307700C2|1993-03-11|1996-04-11|Hatz Motoren|Driver for injection pump|
    US20040034331A1|2001-02-23|2004-02-19|Jason Toman|Integrated medication delivery system|
    WO2002068018A2|2001-02-23|2002-09-06|Stryker Instruments|Integrated medication delivery system|
    US7950908B2|2005-01-26|2011-05-31|Seiko Epson Corporation|Fluid transporting device of a peristalic type with tube and push pin arrangement|
    DE102007033889A1|2007-07-20|2009-01-29|Continental Automotive Gmbh|Fuel pump for an injection system of an internal combustion engine|
    RU2451822C1|2010-11-10|2012-05-27|Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ярославский государственный технический университет"|High-pressure fuel pump plunger tappet drive|
    EP3002426B1|2014-09-30|2017-11-08|Aktiebolaget SKF|Mechanical system forming a cam follower or a rocker arm|
    JP2020139493A|2019-03-01|2020-09-03|株式会社デンソー|Fuel injection pump|
    EP3808968A1|2019-10-16|2021-04-21|Volvo Car Corporation|An arrangement for transferring force from a camshaft to an output device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB8118238|1981-06-13|
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