• 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 method and apparatus for the preparation and control of an air-fuel mixture in which compressed air is divided into two streams, one of which is at a pressure taking into account engine load and existing atmospheric conditions and serves for supplying and sucking fuel and its preliminary atomization, the second stream serving for successive atomizations of fuel and correction of discharge while preventing secondary coagulation. The mixture is fed to the engine intake manifold, where it is further mixed with air sucked by the engine.
    公开号:SU1367863A3
    申请号:SU782704452
    申请日:1978-12-29
    公开日:1988-01-15
    发明作者:Шотт Рышард；Махновски Рышард
    申请人:Осродек Бадавчо-Розвоевы Самоходув Малолитражовых "Босмал" (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to mechanical engineering, and in particular to methods for preparing and regulating fuel-air. mixtures and systems for their implementation.
    The purpose of the invention is to increase the accuracy of fuel metering and improve the quality of the mixture being prepared.
    Fig. 1 schematically shows the proposed system for preparing and adjusting the air-fuel mixture; 2 shows part of a premixing device, a slit; FIG. 3 shows separately the central insert of the premixing device, section.
    The system for preparing and adjusting the air-fuel mixture for an internal combustion engine (FIG. 1) contains a housing 1 located on an intake manifold (not shown) with a flow channel 2 and throttle valves 3 and 4 connected to the accelerator pedal (not shown) installed in the latter, impeller compressor 5 having inlet
    channel 12 for the control valve 16 relative to the air flow.
    The body element 10 of the premixing device is provided with a central insert 24 (FIG. 2), in which a central nozzle 25 and several output side channels 26 are made, and two peripheral liners 27 and 28, in the first of which an annular groove 29 and radial holes 30 are made, the central nozzle 25 with the first air duct 11, and in
    5 second — an annular groove 31 and radial holes 32, which connect the output side channels 26 with the second air passage 12. The housing element is also provided with a bolt 33 screwed into it, through which the stem passes. 34 of the adjusting needle 35 for the central nozzle 25, the rod 34 having a pusher 36 for interacting with a manual control and
    5, the spring-loaded annular guide 37, the rod 34 is also provided with a sealing ring 38, and between the central and peripheral liners 24, 27 and 28 are installed gaskets 39
    0
    6 with the throttle response made in it and 40.
    version 7 to provide the required engine fill characteristics, and the output air line 8, the fuel float chamber 9 and the premixing device have a housing element 10, integral with the body 1 and placed in the flow channel 2 before the throttle (with 2 dampers 3 and 4 with respect to the air flow, and in the housing element 10 there are two air supply channels 11 and 12 connected by inlets 13 and 14 with an inlet 15, connected to the air line 8. In the second air channel E 12 has a control valve 16 connected by means of a system of t g 17 to a servo 18 connected to the rear part of the flow channel 2 with a vacuum channel 19 having a hydraulic resistance 20, and the system of t g 17 with a help 11 (and cable 21 connected to the accelerator pedal that controls the throttle valves 3 and 4. The supra-fuel cavity 22 of the float chamber 9 is connected with the second air inlet through the hole 23
    five
    In the housing element 10, an outlet washer 41 is also installed, forming with the central input 24 of the housing element 10 an annular distribution cavity 42 connected via holes 43 to the central nozzle 25, i.e. to the first air passage channel 11, and communicated by means of additional 0 holes 44 with outlet side channels 26, the annular distribution cavity 42 by means of a slit 45 formed by the output washer 41 and the central liner 24 communicating with the exit zone of the central nozzle 25 and the outlet side channels 26. Central Shadsh 24 with body element 10 forms a fuel distribution cavity 46, connected via channel 47 with a float chamber 9, and in the central liner 24 are filled with fuel holes 48 (ph .2 and 3) informing The output Hb: e side channels 26 to the fuel distribution cavity 46, the vane compressor 5 vtolnen with the inner working surface swept blades (not shown) and having an output window, and is provided prispo5
    0
    five
    3, I
    The purpose is to smooth the pulsations, made in the form of grooves (not shown) on the working surface in the area adjacent to the exit windows at angle 30 against the direction of movement of the blades, so that when the system is operating, the pulsation of compressed air from the compressor 5 to the device inlet I5 is prevented pre mix
    The method of preparation and control of the air-fuel mixture in an internal combustion engine is carried out as follows.
    The impeller compressor 5 takes air from the atmosphere and compresses it to a higher than atmospheric pressure, the pressure being regulated depending on the atmospheric conditions and the engine shaft revolutions, and the pulsed-free compressed air is supplied to the inlet 15 of the premixing device. In the latter, the compressed air flow is distributed over the first and second air supply ducts 11 and 12 in an un-throttled ratio (10:90) - (30:70), and this ratio changes as a result of controlling the air flow through the second air supply duct 12. the aid of the regulating valve 16, so that the air flows out of the central nozzle 25 and the outlet side channels 26 are combined. At the same time, the flow of compressed air passing through the second air passage 12 through the opening 23 creates pressure in the float chamber 9. The air flow through the second air supply duct 12 through the radial holes 32 and the annular groove 31 enters the outlet side channels 26 5 which are made with variable cross section, so that a predetermined decrease in pressure is created at the fuel holes 48. As a result there is a supply of fuel from the float chamber 9 through the channel 47, the distribution cavity 46 and the fuel ports 48 to each stream of compressed air passing through the corresponding outlet side channel 26. Moreover, the air and fuel jets emerging from the latter collide with each other at a common point to which a jet of compressed air also flows through
    67863
    central nozzle 25. The last compressed air is supplied through the first air supply duct 11, an annular groove 29 and apertures 30 with pressure not varying from the engine load, while the air flow through the central nozzle 25 is manually changed by means of a Q adjusting needle 35. At the same time, the compressed air from the first air supply channel I1 through the holes 43 enters the annular distribution cavity 42, from which the outgoing jets of compressed 5 air coming out of the additional holes 44 affect the flow of the from side channels 26, as well as effecting jets emerging from the latter and 2d central nozzle 25 by means of an annular jet of air flowing through the slit 45, which ensures a given deflection of the jets, preventing sticking of the sprayed 25 fuel and changing costs in them air and fuel, increasing the accuracy of the dosing of the latter and improving the quality of the prepared mixture. The air-fuel mixture leaving 30 from the premixing device is mixed with the main air flow sucked by the engine through the flow channel. 2, while regulating the mixture entering the engine is carried out by throttle valves 3 and 4. At the same time, depending on the engine load, the flow of compressed air through the second air / Q channel inlet channel 12 is controlled, thereby simultaneously ensuring fuel consumption to the engine, and at the idle stop, the supply of compressed gas is stopped through the side outlets 26, ensuring that the fuel supply to the engine is stopped. A regulating needle 35 provides for the adjustment of the composition of the feed mixture to compensate for manufacturing errors or the degree of wear of the system and the engine.
    35
    45
    0
    five
    as well as temporarily changing the cross section of the central nozzle 25 when starting a cold engine.
    权利要求:
    Claims (5)
    [1]
    1. A method for preparing and adjusting an air-fuel mixture in an internal combustion engine, which consists in supplying a stream of compressed gas from the compressor in a controlled amount to a pre-mixing device, in which this stream is fed to the fuel upstream and to the atomizer and separating the stream of compressed gas to the central and several side jets, the latter of which are sprayed, the fuel sent from the fuel chamber and which collide among themselves, and in the place of the collision a cent The air jet is a turbulizing rich air-fuel mixture, and the pressure in the fuel chamber is maintained equal to the pressure of the compressed gas in the side jets, and the main air flow in the area of the premixing device is not throttled, regardless of the engine's operating mode. to nominal pressure of compressed gas is changed in proportion to the resolution in the suction pipe, at nominal load without throttling, and at idle throttling of the mind depending on the absolute pressure, and the resulting mixture is directed into the inlet pipe through the idling sprayer, and at the forced idling the supply of compressed gas is stopped, characterized in that, in order to improve the accuracy of fuel metering and improve the quality of the prepared mixture, the supply of compressed gas from the compressor to the central jet is carried out without throttling on the load, and the stream of compressed gas in the pre-mixing device is divided into feed to the central and side jets in not throttled ratio (10:90) - (30:70), and the pressure control of the compressed gas depending on the load is carried out only by the flow directed into the superfluous space and side jets at compulsory idle to stop the flow of compressed gas are only through side jets.
    [2]
    2. Method pop. 1, which differs from and with: the fact that the flow of compressed gas directed through the central jet is adjusted manually.
    [3]
    3. The system of preparation and regulation of the air-fuel mixture for
    an internal combustion engine containing a housing located on the intake manifold with a flow channel and installed in the latter
    at least one throttle valve associated with the accelerator pedal, a compressor with an air line, a fuel float chamber and a pre-mixing device installed in the flow channel, installed in front of the throttle valve with respect to the air flow and having an inlet in the housing element connected to the air line, the central nozzle and several output side channels, each of which is connected to the corresponding fuel supply
    a bore, with a pre-mixing device accommodating a control valve, kinematically connected with a servo actuator connected to the throttle space of the flow channel, which, in order to improve the accuracy of fuel metering and improve the quality of the prepared mixture, in the body element of the pre-mixing device Additional holes and two air supply ducts, connected by their inlets with the inlet, and the output of the first air supply duct with common with the central nozzle, and the output of the second air supply duct with the outlet side channels and equipped with a control valve, and an outlet washer is formed, which forms a distribution cavity with the housing element connected to the first air supply duct and communicated through additional openings with the outlet side channels and by means of an annular gap formed by the output washer and body element, with a zone of exit of the central nozzle and side channels, and the central nozzle is equipped with manual control needle.
    [4]
    4. The pop-s system is different from the fact that the line
    The hydraulic resistance is set to a servo drive with a throttling space of the flow channel.
    [5]
    5. Pop-out system, characterized in that the compressor is out
    713678638
     with an internal working surface filled with grooves on the working stand, fringed with blades and having surfaces in the zone adjacent to the exit windows, and equipped with adaptive windows at an angle of up to 39 ° against
    to smooth pulsations, gig i9
    the direction of motion of the blades
    .V
    1
    (fJu.S
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    SU1406401A1|1988-06-30|Mixing carburettor for gas internal combustion engine
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    同族专利:
    公开号 | 公开日
    JPS6234940B2|1987-07-29|
    PL203700A1|1979-08-13|
    US4216174A|1980-08-05|
    JPS5496633A|1979-07-31|
    FR2413561B2|1984-01-13|
    GB2011545A|1979-07-11|
    PL115851B1|1981-05-30|
    ES476844A2|1979-12-01|
    GB2011545B|1982-09-08|
    IT7869999D0|1978-12-29|
    DE2856732A1|1979-07-05|
    ES476845A2|1979-10-16|
    DE2856732C2|1987-03-19|
    SE7813372L|1979-07-01|
    IT1174272B|1987-07-01|
    FR2413561A2|1979-07-27|
    JPS5581249A|1980-06-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR471619A|1913-01-18|1914-11-05|Placide Marius Auguste Mounier|Carburetor|
    GB221827A|1924-09-12|1925-07-16|Naamlooze Venootschap Hollands|Improvements in or relating to apparatus for atomising liquids|
    FR630593A|1927-03-09|1927-12-05|Improvements to internal combustion engines|
    US1886989A|1928-08-29|1932-11-08|John T Trumble|Supercharging apparatus|
    US1974585A|1932-02-01|1934-09-25|Bendix Aviat Corp|Carburetor|
    FR774953A|1933-09-08|1934-12-17|Carburetor for internal combustion engines in which the combustible liquid is sprayed mainly by an auxiliary pressure controlled by the throttle lever|
    US2012564A|1933-12-11|1935-08-27|Nuway Engineering Corp|Carburetor|
    US2223381A|1937-02-17|1940-12-03|Frank C Mock|Carburetor|
    US2247189A|1940-07-23|1941-06-24|Guyon Clement De|Carburetor|
    GB673914A|1948-10-01|1952-06-11|Rudolf Ludwig Wille|Improvements in or relating to the atomization of liquid fuel for internal combustion engines|
    FR1089994A|1953-07-06|1955-03-25|Fuel metering device for vacuum or injection carburetors|
    US2878065A|1956-07-23|1959-03-17|Lucas Industries Ltd|Liquid fuel discharge nozzles|
    FR1192439A|1957-12-21|1959-10-26|Sibe|Improvements made to carburizing devices operating by fuel injection into the intake manifold of an engine|
    US3376027A|1964-02-19|1968-04-02|Univ California|Fuel atomizing carburetors|
    DE1903595A1|1968-01-25|1969-10-09|Daido Sanso Kabushiki Kaisha O|Method and apparatus for continuously generating a high temperature flame|
    US3635201A|1969-09-12|1972-01-18|Carl F High|Pressure carburetion system for manifold distribution|
    JPS5141693B1|1971-05-24|1976-11-11|
    US3764069A|1971-07-30|1973-10-09|Nordson Corp|Method and apparatus for spraying|
    US4084934A|1972-02-05|1978-04-18|Mitsubishi Precision Co., Ltd.|Combustion apparatus|
    DE2219666A1|1972-04-21|1973-12-20|Kugelfischer G Schaefer & Co|MIXTURE PREPARATION DEVICE FOR OTTO COMBUSTION MACHINES|
    US4159014A|1976-08-27|1979-06-26|Osrodek Badawczo-Rozwojowy Samochodow Malolitrazowych "Bosmal"|Method and apparatus for preparation and control of air-fuel mixture to the air intake of an engine|US4343282A|1979-07-16|1982-08-10|Glenn Joseph G|Liquid tower carburetor|
    JPH0541829B2|1981-07-07|1993-06-24|Paipaa Efu Emu Ltd|
    DE3135817A1|1981-09-10|1983-03-24|Robert Bosch Gmbh, 7000 Stuttgart|METHOD AND FUEL SUPPLY SYSTEM FOR FUEL SUPPLYING A MIXTURING COMPRESSIVE IGNITION ENGINE|
    US4836453A|1988-02-22|1989-06-06|Outboard Marine Corporation|Fuel injector with continuous air flow|
    US5255658A|1990-10-12|1993-10-26|Coltec Industries Inc.|System and apparatus to improve atomization of injected fuel|
    CA2187499A1|1996-10-09|1998-04-09|Sylvain Matte|Electronic compensation system|
    US20110061622A1|2008-05-23|2011-03-17|Lund Morten A|Fuel composition|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    PL1977203700A|PL115851B1|1977-12-31|1977-12-31|Method of and apparatus for preparing and controlling the ratio of an air-fuel mixture|
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