• 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:
    1398743 Fuel injection pumps ROBERT BOSCH GmbH 15 Sept 1972 [18 Sept 1971 13 Oct 1971] 42796/72 Heading F1A A fuel injection pump comprises a casing 10, a body 13 defining a cylinder bore 17 and having a mounting flange 15 clamped by screws 48 against an upper face 11 of the casing, and a pressure valve 36 held against a shoulder 42 in an extension 38 of the cylinder bore 17 by a nipple 39 screwed into an internal thread 41 in the end of the extension bore 38 remote from the cylinder bore 17. The body 13 is located in a bore 12 in the casing and its reduced diameter end 14 is disposed with a clearance a in a bore 12a. O-rings 58, 62 are provided for preventing leakage past the body from a suction chamber 24. In operation fuel from the suction chamber 24 enters the working chamber 21 through a control port 22 covered by upward movement of the piston 18 and uncovered, to terminate delivery, by an oblique edge 25 on the piston 18. Thus fuel in the chamber 21 spills into the suction chamber 24 where it is intercepted by a baffle ring 53 secured by a snap ring 54. Various dimensional relationships between parts are specified.
    公开号:SU884583A3
    申请号:SU721828742
    申请日:1972-09-15
    公开日:1981-11-23
    发明作者:Хофманн Эберхард；Штаудт Хейнрих；Эккель Вольфганг；Кноррек Петер
    申请人:Роберт Бош Гмбх (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to mechanical engineering, mainly to fuel pumps of internal combustion engines. Fuel injection pumps for internal combustion engines are known, comprising a body of light metal, a sleeve with control holes and an intake chamber mounted in it, and a piston for measuring fuel supply, provided with at least one inclined guide edge, and in the expansion of the cylindrical opening of the sleeve there is a discharge valve, the body of which is Replen in the liner using the nipple connected to it by a threaded connection, the liner being coupled to the body through a support shoulder located on its outer surface above the adjusting holes 1. A disadvantage of the known pump is that the mounting of the sleeve in the housing does not provide sufficient rigidity of the connection, which leads to the appearance of bending forces during the operation of the pump and to a decrease in the reliability of the sleeve and the pump as a whole. The purpose of the invention is to increase reliability by eliminating bending forces. This goal is achieved by the fact that the sleeve is made with a flange located in the area of the threaded connection and has a reduced diameter in the area below the suction chamber for installation in a housing with a gap. The drawing shows the pump, pryudolny incision. The fuel pump includes a housing 1 in which a liner 2 is fixed with a chamber 3 and a discharge valve 4. The liner 2 is coupled to the housing 1 by means of a support collar 5 placed on the outer surface of the liner 2 above its regulating openings 6. Nipple 7 is connected a sleeve 2 with a threaded connection 8; A sleeve 9 has a flange 9 located in the area of the threaded connection 8; and in the area below the chamber 3 for mounting in the housing 1 with a gap, the sleeve 2 has a reduced diameter. When assembling the pump, the gap between the liner 2 and the housing 1 compensates for the external forces arising during installation and prevents the liner from warping. Flange 9 located in
    权利要求:
    Claims (1)
    [1]
    Claim
    A fuel pump of an internal combustion engine, comprising a light metal housing, a 15 sleeve with control holes' and a suction chamber fixed in it, a piston for changing the fuel supply, provided with at least jq one inclined guide edge, is located in the cylindrical hole of the sleeve, and in the extension a cylindrical bore of the sleeve there is a discharge valve, the body of which is fastened in the sleeve by means of a nipple connected to it by a threaded connection, and the sleeve is interfaced with the body through a pork shoulder located on its outer surface above the control holes, characterized in that, in order to increase reliability by eliminating bending forces, the sleeve is made with a flange located in the area of the threaded connection and has a reduced diameter in the area below the suction chamber for installation in the housing with a gap.
    Priority by signs:
    09/18/71 - the sleeve is made with a flange located in the area of the threaded connection.
    13.10.71 - has a reduced diameter in the area below the suction chamber for installation in the housing with a gap.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU884583A3|1981-11-23|Fuel pump
    US5125807A|1992-06-30|Fuel injection device
    US4280455A|1981-07-28|Internal combustion engine
    WO1988001344A1|1988-02-25|Closed end fuel injection system
    US3885895A|1975-05-27|Fuel injection pump for internal combustion engines
    US4522182A|1985-06-11|Fuel system for compression ignition engine
    US4241714A|1980-12-30|Solenoid valve controlled fuel injection pump
    US4459086A|1984-07-10|Fuel injection pump for internal combustion engines
    US2354403A|1944-07-25|Fuel injection system
    JPH0350379A|1991-03-04|Fuel injection pump for internal combustion engine
    US4718385A|1988-01-12|Fuel injection pump for internal combustion engines with exhaust gas recirculation
    GB1483797A|1977-08-24|Hydraulic heads for fuel injection pumps
    GB2107801A|1983-05-05|Fuel injection pump, especially for a diesel-powered internal- combustion engine
    GB2269861A|1994-02-23|Fuel injection pumps for internal combustion engines.
    US2294029A|1942-08-25|Fuel injector and fuel jet construction
    US2348282A|1944-05-09|Fuel injection apparatus
    US3507262A|1970-04-21|Fuel injection system
    US3186344A|1965-06-01|Fuel injection pump
    US2535535A|1950-12-26|Injection plunger for compression ignition engines
    US2326171A|1943-08-10|Fuel injection device
    US4690624A|1987-09-01|Fuel injection pump for internal combustion engines
    GB1274237A|1972-05-17|Fuel injection pump for internal combustion engines
    US6182638B1|2001-02-06|Internal combustion engine with inlet and outlet valves
    US2958289A|1960-11-01|Injection pump
    SU1281729A1|1987-01-07|Rig nozzle for adjusting diesel engine fuel injection pump
    同族专利:
    公开号 | 公开日
    ES406764A1|1976-05-16|
    GB1398743A|1975-06-25|
    BE788979A|1973-01-15|
    AT315578B|1974-05-27|
    RO60781A|1976-08-15|
    IT967551B|1974-03-11|
    JPS4837516A|1973-06-02|
    PL84908B1|1976-04-30|
    CS158589B2|1974-11-25|
    FR2153961A5|1973-05-04|
    JPS5618788B2|1981-05-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE4222081A1|1992-07-04|1994-01-05|Kloeckner Humboldt Deutz Ag|Diesel internal combustion engine - has fuel injection equipment incorporating injection pump with pump bush, pump being fixed to housing so that bush is not deformed.|
    DE3300030A1|1983-01-03|1984-07-05|Klöckner-Humboldt-Deutz AG, 5000 Köln|INJECTION PUMP FOR DIESEL INTERNAL COMBUSTION ENGINES|
    GB2135395B|1983-02-14|1987-03-18|Steyr Daimler Puch Ag|Fuel-injection unit for each cylinder of a diesel engine|
    EP0117219A3|1983-02-17|1986-08-06|Ail Corporation|Arrangement for adjusting axial positioning of injection barrel in fuel injection pump|
    AT388214B|1983-02-17|1989-05-26|Steyr Daimler Puch Ag|FUEL INJECTION UNIT FOR ONE CYLINDER OF A DIESEL ENGINE|
    JPS6026151A|1983-07-22|1985-02-09|Shinagawa Diecast Kogyo Kk|Accelerator for film type carburetor|
    AT386462B|1984-02-15|1988-08-25|Bosch Robert Ag|FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES|
    JPS60146481U|1984-03-12|1985-09-28|
    AT391350B|1985-07-17|1990-09-25|Bosch Robert Ag|FUEL INJECTION PUMP|
    JPS62183780U|1986-05-13|1987-11-21|
    DE69933714T2|1999-02-09|2007-10-04|Hitachi, Ltd.|High pressure fuel pump for an internal combustion engine|
    DE102012211104A1|2012-06-28|2014-01-02|Robert Bosch Gmbh|High-pressure fuel pump for a fuel system of an internal combustion engine|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19712146797|DE2146797C3|1971-09-18|1971-09-18|Fuel injection pump for internal combustion engines|
    DE19712150973|DE2150973A1|1971-10-13|1971-10-13|FUEL INJECTION PUMP FOR COMBUSTION MACHINES|
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