• 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:
    Es wird ein Druckventil vorgeschlagen, das in die Förderleitung (4), die von einer Kraftstoffeinspritzpumpe zu einem Kraftstoffeinspritzventil (3) führt, eingebaut wird und ein in Förderrichtung öffnendes Ventilschliessglied (19) aufweist, das wiederum mit einer eine Drosselbohrung (28) enthaltende Längsbohrung (26) versehen ist, die einspritzpumpenseitig durch ein Ventilschliessglied (31) eines Rückschlagventils (30) verschliessbar ist und erst bei Überschreiten eines bestimmten Standdruckes in der Förderleitung zwischen sich in Schliessstellung befindlichem Ventilschliessglied (19) und dem Kraftstoffeinspritzventil öffnet. Dadurch und in Verbindung mit der Drosselbohrung wird erreicht, dass Druckschwingungen im Leitungssystem zwischen Einspritzpumpe und Einspritzventil nach Förderende schnell abgebaut werden, so dass keine Nachspritzer auftreten und dass ferner ein ausreichend grosser Standdruck im Leitungssystem gehalten wird, der verhindert, dass Abgase in das Einspritzsystem gelangen. In vorteilhafter Weise lässt sich der Standdruck mit Hilfe einer einzupressenden Hülse (45) stufenlos einstellen.
    公开号:SU1517768A3
    申请号:SU843812256
    申请日:1984-11-16
    公开日:1989-10-23
    发明作者:Берингер Вильфрид；Эхайм Франц；Фельманн Вольфганг；Лауфер Хельмут；Цибольд Карл
    申请人:Роберт Бош Гмбх (Фирма)；
    IPC主号:
    专利说明:

    ABOUT)

    cm
    -
    five
    figl
    9, installed with the ability to press it to the saddle 7, and the locking element 11 of the check valve with the spring pressed 12, provided with a support 23 fixed in the through cylindrical bore 15 by pressing in the latter when assembling the pressure valve. The depth of the press-fitting of the support 23 can be adjusted in advance by pressing the spring pressure, i.e.
    Opening pressure of the check valve. The pressing process is carried out mainly in the assembled state.
    a pressure valve; in this case, the check valve on the opposite side is loaded with fluid from a constant pressure source at a level of a controlled holding pressure, and the support is continuously pressed until the valve is inhibited. 1 hp ff lm, 3 ill.
    The invention relates to the field of engineering, more specifically to the field of engine building, namely, fuel injection equipment for internal combustion engines, and can be used in pressure valves for fuel injection pumps.
    The aim of the invention is to increase the fuel delivery efficiency by increasing the stabilization of the residual pressure in the supply pipe due to the possibility of regulating the spring pressure of the check valve.
    FIG. 1 shows the pressure valve, general view; in fig. 2 shows a valve with a pressed bush; FIG. 3 - Kfiauan with a flat saddle.
    The pressure valve consists of a connecting nipple 1 located in the pump housing 2 between its working space 3 and the fuel injection nozzle 4 with the inlet pipe 5, the valve body 6 with the seat 7. and the outer collar 8, the compression spring 9, the locking element 10 and the shut-off element of the check valve 11 with the spring 12 is pressed. The fitting 1 has, from the pump side, an axial recess 13, from which the connecting channel 14 is connected, connected with the pipe and pipe 5. The valve body 6 has a passage channel made in the form of a cylindrical longitudinal Through hole 15, and its outer 8 is located between the end face 16 of the fitting 1 and the protrusion 17 on the pump casing 2 in the clamped state by means of the threaded joint 18.

    Stop 10 is located
    in the longitudinal through hole 15 with the ability to press to the saddle 7 at
    0
    five
    0
    5 0 5 about 5
    compression spring 9, which at the other end rests on the wall 19 of the axial recess 13 through the intermediate guide washer 20. The locking element 10 has a longitudinal channel 21 connected to the axial recess 13 and has a section 22 with a reduced cross section, and the locking element of the check valve 11 is mounted so as to overlap the longitudinal channel 21, and has a spring 12 which is pressed against it fixedly against the valve body 6 through a support 23 fixed in the longitudinal through cylindrical bore 15 by pressing in the last when the pressure valve assembly. The diameter of the outer shoulder 8 of the valve body 2 is made equal to the outer diameter of the end part 16 of the fitting 1, and both parts to facilitate the installation of the pressure valve in the pump body can be connected to each other through a spring clip 24. The locking element 10 of the pressure valve has a guide pin 25 dL spring 9 compression, sealing conical or flat surface 26, which is adjacent to the seat 7, and the guide element, which is made in the form of an impeller 27 and is located in the longitudinal through hole 15. The end of the longitudinal channel La 21 from the side of the working space 2 of the pump is made in the form of a conical sealing surface 28 for the shut-off element of the check valve 11, made in the form of a ball. The spring J2, which presses the locking element 11 of the check valve, interacts with it through the clamp 29, which has a central recess 30 coordinated with the ball shape of the locking element.
    The support 23 of the spring 12 is pressed predominantly has
    15
    side of the pump inner flange 31, on which the spring 12 rests. The inner rim 31 limits the longitudinal opening 15. The section with a reduced cross section 22 can be positioned either in the upper or lower part of the longitudinal channel 21, in its vertical or horizontal section. The intermediate guide washer 20 also serves as a stop for moving the closure member when opening the pressure valve. Seat 7 pressure valve can be made in both conical and flat form.
    Pressure valve works as follows.
    When the fuel injection pump, in which the pressure valve is installed, operates, the fuel is supplied to the internal combustion engine under high pressure, which overcomes the pressing force of the compression spring 9, raises the zaporny element 10 and thereby connects the working space of the pump 3 to the supply pipe 5 and a nozzle 4. At the end of the fuel supply, the locking element 10 returns back to its valve seat 7 and at the same time closes the supply line 5 at the end. Immediately after this instant interruption of the supply in a closed volume reciprocating pressure waves pass between the pressure valve and the injection nozzle, which in a state of briefly opening the nozzle again and producing fuel injection at a later point in time. However, when the pressure wave approaches the locking element 10, the locking element of the check valve 11 opens and the fuel in a small amount through section 22 with a reduced cross-section of the longitudinal channel 21 flows back into the working space of the pump 3. This leaking fuel delivers a slow decrease in pressure to regulated by the stop valve element 11 of the check valve is a stationary pressure level, i.e. damping pressure fluctuations in the supply line system. At the same time, the check valve reinstates the minimum level of stationary pressure, which prevents the entry of combustion products from the combustion chamber into the supply pipeline system, which can occur at 7686
    to lead to damage to the P1pcho and pore valve and to the dosing of B.chryski1 fuel.
    The spring support 23 for pressing a-- is pressed in the continuous through hole 15. Deeper; OY pressing the support 23 can be adjusted the preliminary loading of the pressure spring, i.e. pressure to open the check valve. The pressing process is carried out predominantly in the assembled state of the pressure valve, while the check valve is loaded with
    5 side of the axial recess with liquid from a constant pressure source at a level of a controlled holding pressure, and the support 23 is continuously pressurized so far until the valve is closed.
    Such an implementation of a pressure head allows for an easy-to-make construction that is easily assembled with a connecting nipple,
    5, it is possible to fine-tune the pressure of opening the check valve in the assembled state of the pressure valve and thereby increase its efficiency.
    0
    权利要求:
    Claims (2)
    [1]
    1. Pressure valve for installation in the inlet pipe between the working space of the fuel injection pump and the fuel injection nozzle into the internal combustion engine, containing a connecting nipple having: on the pump side::
    Q recess, from which the connecting channel, connected to the JOD pipeline, departs, valve body with a seat and an outer collar, which is located between the end of the union
    r and a protrusion on the fuel pump housing in a clamped state; pass through the channel, is pressed against the spring
    e to the saddle and has a longitudinal channel connected to the Axial recess and having - a section with a reduced cross-section, and a shut-off element of a check valve installed with
    five
    blocking the longitudinal drip, the locking element having a spring pressed against it immobilely directly onto the valve body through a support in the flow channel, characterized in that, in order to increase efficiency by increasing the stabilization of the residual pressure in the supply pipe due to the possibility of adjusting the spring voltage prizha-
    five
    (puaZ
    Editor V. Bugrenkova
    Compiled by V. Dolgov Tehred A. Kravchuk
    Order 6404/58
    Circulation 482
    BHlO-lin-I of the State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, 4/5 Raushsk Nab.
    These check valves, spring support, press the check valve of the check valve fixed in the flow channel by pressing.
    [2]
    2. Valve according to claim 1, characterized in that the diameter of the outer rim of the valve body is equal to the outer diameter of the end part of the fitting and both parts are connected to each other through a spring clip.
    fe.3
    Proofreader M.Sharoshi
    Subscription
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    同族专利:
    公开号 | 公开日
    EP0142008A2|1985-05-22|
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    US4577606A|1986-03-25|
    引用文献:
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    US3477458A|1965-01-07|1969-11-11|Int Harvester Co|Fuel delivery valve assembly and method|
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    GB1216682A|1967-12-08|1970-12-23|Tsni I K I Toplivnoi Apparatur|A delivery valve arrangement of fuel injection pumps for internal combustion engines|
    GB1274225A|1968-11-14|1972-05-17|Lucas Industries Ltd|Liquid fuel injection nozzle units|
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    FR2116729A5|1970-12-04|1972-07-21|Sigma|
    CS159848B1|1972-11-06|1975-02-28|
    FR2296104B2|1973-12-13|1977-03-04|Sigma Diesel|
    US3896845A|1974-06-13|1975-07-29|Gen Motors Corp|Accumulator charging and relief valve|
    JPS6210870B2|1979-08-31|1987-03-09|Toyoda Machine Works Ltd|
    JPS6339792B2|1980-02-05|1988-08-08|Nippon Denso Co|
    IT1150318B|1981-03-21|1986-12-10|Bosch Gmbh Robert|FUEL INJECTION PUMP FOR ENDOTHERMAL ENGINES|
    DE3221405A1|1981-09-04|1983-03-24|Robert Bosch Gmbh, 7000 Stuttgart|FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES|
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    DE4126879C2|1991-08-14|2001-02-22|Bosch Gmbh Robert|Equilibrium pressure relief valve for fuel injection systems|
    US5299919A|1991-11-01|1994-04-05|Paul Marius A|Fuel injector system|
    US5220941A|1992-06-02|1993-06-22|Walbro Corporation|Fuel pressure regulator|
    DE4240303C2|1992-12-01|2003-09-11|Bosch Gmbh Robert|pressure valve|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3341575A|DE3341575C2|1983-11-17|1983-11-17|Pressure valve for fuel injection pumps|
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