• 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 carburettor for an internal combustion engine has an air passageway in which air flow is controlled by a poppet valve in which fuel is fed from a tapered needle controlled valve readily variable for different fuels including CNG, LPG, Methanol and petrol. A movable assembly comprises the poppet valve connected to a movable wall, the latter separating a first and second pressure chamber and a low pressure control valve is manually programmable to take up a position relative to the movable assembly preferably the movable wall to control pressure in the first pressure chamber against a balancing pressure in the second pressure chamber and a biasing means to control the position of the poppet valve and the fuel valve and hence the power of an internal combustion engine on which the carburettor is fixed in accordance with selected positions of a manual control.
    公开号:SU1258331A3
    申请号:SU3568914
    申请日:1983-02-28
    公开日:1986-09-15
    发明作者:Лехмер Браун Морис
    申请人:и (72) Морис Лехмер Браун (NZ)；
    IPC主号:
    专利说明:

    the water supply channel and is equipped with a fuel jet, the second tube being connected to the housing by means of a regulating connection about
    7. The carburetor of PP, 5 and 6, which is characterized by the fact that, in the first valve element, at least one air jet is made, connected to the fuel supply port of the PS channel behind the fuel jet relative to the fuel flow.
    8. Carburetor on PP ,, 5-7, o t - jjH due to the fact that the first valve element is made with a peripheral fuel spraying annular groove and radio channels connecting the fuel supply channel with the annular groove.
    9. The carburetor of claim 8, of tl and - which is based on the fact that in the first
    The valve element is provided with air holes located at the annular parts of the respective radial channels and communicated with the fuel-forming annular groove.
    10.Karbyurator on PP. 5-9, which is characterized by the fact that the first valve element has longitudinal slots for the passage of the fuel-air mixture when idling and starting the engine.
    This invention relates to mechanical engineering, in particular to carburetors for an internal combustion engine.
    The aim of the invention is to improve the accuracy of fuel metering.
    FIG. G shows the proposed carburetor for an internal combustion engine; in fig. 2 - movable first valve element; in fig. 3 - the first corpus element with an air con: a rem and a regulating element, a section; in fig. 4 - the second corpus element C vvk} the humic channel, a section.
    A carburetor for an internal combustion engine comprises a housing 1 with a flow channel 2 and a diffuser 3 formed therein, in the last movable first valve that changes the air flow
    11. Carburetor on PP. 5-10, in particular, the connection of the conical needle with the first valve element is adjustable.
    1 2., Carburetor on PP. 1, characterized in that the vacuum chamber is provided with an air channel for connection to the atmosphere.
    13. The carburetor of claim 2, wherein the air duct of the vacuum chamber is provided with a regulating element.
    14.Karbyurator on PP. 1-13, characterized in that the housing also has an additional vacuum channel for the distributor of ignition, equipped with a third valve element that interacts with the first valve element to provide the shut-off at a predetermined position of the latter.
    15. The carburetor according to claim 14, of which is that the case is provided with a housing element having a passageway forming an additional vacuum channel, and the third
     the valve element is located inside the flow passage and is provided with a spring and an outside pusher for engagement with the first valve element.
    in the flow channel 2 and formed by the lower and upper plate elements 4 and 5, the last of which is made with a tubular rod 6, and
    rigidly connected with the last movable partition, made in the form of nopulHJi 7, placed in the cylinder 8, mounted on the housing 1, and forming two chambers 9 and 0, the first of which is connected through the opening 11 to the channels 12 for supplying atmospheric air, and the second - vacuum connected to flow channel 2 for the first valve element with number 6
    -shchi vacuum channel formed by the flexible pipe 13 and the movable first tube 14, the upper end of which is connected to the pipeline 13 by means of fitting 15, and the lower end
    placed in the vacuum chamber 10 and forms with its end surface 16 a second valve element of the vacuum channel, and the end surface 16 is complete with the ability to interact with the surface 17 of the piston 7, the movable partition can be made in the form of a diaphragm,
    The first tube 14 is provided with a stationary cylindrical guide 18, the inner surface of which serves for the first tube 14, and the outer surface for the end contact element 19, which is movable relative to the first tube 14 and is kinematically connected through a lever control (not shown), and the end contact element 19 is provided with a regulating device, made in the form of a screw 22, and the first tube 14 has a bead, between which and the end contact element 19 is installed dinner 23 forming the bodyshop element. The burt of the first tube 14 forms an abutment for interaction with the end contact element, and the first tube itself 14 forms the regulating element of the vacuum channel.
    A second tube 24 is installed inside the first valve element. The internal cavity of this tube forms TOSH1IOLODANNING channel 25. The tube 24 is equipped with a fuel jet 26 and is connected to cylinder 3 and, therefore, to housing 1 by means of a regulating connection 27 "In the bottom plate element 5. (Fig. 2) with the help of a spring 28 and a nut 29, the shank 30 of the regulator is installed, which changes fuel consumption and is made in the form of a conical needle 31 and interacts with the fuel nozzle 26, In the tubular rod 6 of the first valve element ene 1zozdushny nozzle 32, which through the groove 33 and provided in the second tube 24 communicates with a groove taplivopodvod conductive channel 25 for the fuel jet 26 with respect to fuel flow. The first valve element has a peripheral fuel-spraying groove 34 and radial channels 35 which connect the latter with the fuel feed channel 25, at the end parts of which air holes 36 are made in the upper portions of the element 5, and
    the latter, on both dish-shaped elements 4 and 5, have longitudinal slots 37 for passing the air-fuel mixture when the engine is idling.
    The housing 1 is provided with channels 38 for the passage of coolant from the engine cooling system. Air filter is installed on housing 1
    O 39, in which the atmospheric air is cleaned, passing to the ducts 12, and on the air cleaner 39 there is a cover 40 that covers the carburetor on top of the second tube 24
     5 is adjustable in height so that the taper needle 31 interacts with the fuel jet 26, and is fixed to the cylinder 8 by means of a regulating connection.
    0 The second tube 24 is connected to the outlet of the fuel pump 45, which is fitted with a reducing valve 46 and which supplies the fuel from the tank 47, using flexible pshanga 41, having a fuel shut-off valve 42, a steam separator 43 and a pipe 44, and the reducing valve 46 is adjusted at a predetermined pressure, and the removal of vapor and air from the steam separator is carried out through a cutting rod 48, for example, into the air inlet of the air cleaner 39. The fuel shut-off valve 42 can be made, for example, by electromagnetic or mechanical
    5-nick and is designed to stop the fuel supply to the engine to turn it off.
    five
    0
    A spring 49 is installed between the housing 1 and the piston 7, the force of which is directed to move upward the piston 7 and, consequently, the first valve element towards blocking the flow area of the diffuser 3. A hole (not shown) is made in the cylinder 8, into which is screwed the first housing element 50 with a channel 51 for communicating the vacuum chamber 10 with the atmosphere, and in the canape 51 a regulating element 52 is placed, connected to the housing element with a thread and equipped with a lock nut 53. A second screw can be screwed into the cylinder 8 case element 54, fixed with a lock nut 55 and having an additional vacuum channel, formed by a passage channel 56 and channels 57
    and 58, made in nipples 59 and 60, with the third valve element 6) being provided with a through passage channel 56, equipped with a spring 62 n and an outside pusher 63 for interacting with the piston 7 in a predetermined position of the latter,
    The third valve element 6I is designed to regulate the vacuum applied through the flow passage 56 to the ignition distributor. T ha 21, except for communication with manual control, also associated with an accelerator pedal (not shown), which is driven by an engine
    The carburettor works as follows.
    When the engine is not running, all the carburetor elements are set to the position shown in FIG. 1. When the engine is started up, a vacuum is created in the flow channel 2, which, acting on the first valve element, shifts it downward, overcoming the spring force 49 and the air pressure, has a pressure in the chamber 9. At the same time, the vacuum in the flexible pipe 13 and the first tube 14 is created also in the vacuum chamber 10, if the face surface 16 is not in contact with the surface 17 of the piston 7, the first valve element and the piston 7 are displaced downward until the forces acting on them are balanced, and since the surface of the piston 7 to which a vacuum is applied that is greater than the surface of the first valve element, they take up the position specified by the control element 52 at the start-up (the front surface 6 of the first tube 14 is not close to the surface 17 of the piston 7). FIG. shows the position of the elements of the carburetor with a minimum fuel supply, i.e. in the self-idling mode of the engine. At the same time, the air passing through the air jet 32 ejects the fuel passing through the gap between the conical needle 31 and the fuel jet 26, and the air that forms with the emulsion passes through the air holes 36 and is trapped by the air,. passing through the longitudinal slot 37, Thus, a good atomization of the fuel and its mixing with air is achieved, the first valve element providing
    em receipt of a specified number
    fuel-air mixture so that the engine does not require installation of throttle valve 2 in the channel.
    If it is necessary to increase the power of the engine, the thrust 21 moves downward the end contact element 19, which compresses the spring 23 and causes the first tube 14 to move downward, reducing the vacuum in the vacuum chamber 10. The piston 7 together with the first valve element also moves downward first handset
    14, since the vacuum acting on the moving system from the side of the flow channel 2 exceeds the negative pressure acting from the side of the vacuum chamber 10. The displacement continues until
    as long as the first tube 14, having selected the entire free stroke, does not move away from the surface 17 of the piston 7, and a vacuum is created in the vacuum chamber 10, which will cause the balancing of forces on the moving elements of the cartridge. Moreover, the first valve element with the piston 7 is installed in a lower position, determined by the installation of the first tube 14, and the fuel-air mixture passing through the flow channel 2 will increase, providing an increase in engine power. At the same time, due to the displacement of the conical needle 31 relative to the fuel jet 26, an increase in the fuel supply is provided, and thus the desired composition of the mixture prepared by the carburetor is achieved.
    If at a fixed position of the pedal to the selector, i.e. As the motor 21 increases, the engine load increases, the shaft speed decreases, and the vacuum in the flow channel 2 decreases, causing the pressure in the vacuum chamber 10 to increase and, consequently, the piston and the first valve element move down, and the fuel consumption increases. and air, with an increase in costs occurring until the forces acting on the moving elements of the carburetor are balanced again.
    This achieves high accuracy in metering fuel to the engine.
    43
    evil
    25
    SS
    puf.3
    9S
    Compiled by L. Sinai Editor A. Lezhnin Tehred L. Serdyukova Proofreader G, Reshetnik
    5046/61
    Circulation 523 Subscription VNIIPI USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    Production and printing company, Uzhgorod, st. Project, 4
    权利要求:
    Claims (15)
    [1]
    1. CARBURETOR FOR THE INTERNAL COMBUSTION ENGINE, comprising a housing with a flow channel and a diffuser made in it, located in the last movable first valve element that changes the air flow rate in the flow channel and is connected with a regulating body that changes the fuel flow rate and has a conical needle, and with a movable partition placed at a distance from the first valve element and made with the possibility of movement, moreover, the movable partition forms two chambers in the housing, one of which is connected to the atmosphere oh and the other vacuum is connected to the cavity of the flow channel behind the first valve element using a vacuum channel equipped with a second valve element associated with manual control, characterized in that, in order to improve the accuracy of dispensing fuel supply, the second valve element of the vacuum channel is placed in the vacuum chamber of the housing and is made with an end element for interaction with a movable partition.
    [2]
    2. Carburetor according to π. 1, wherein the manual control is equipped with a kinematic chain and an end contact element provided with a control device, and the second valve element of the vacuum channel is equipped with a control element and a free-wheel element located between the end contact and control elements.
    [3]
    3. The carburetor according to claim 2, characterized in that the vacuum channel is formed by pipelines connected to the end contact element and bearing the regulating device, and the regulating element is made in the form of a first tube, movably mounted in the housing and made with a stop for interaction with the end contact element .
    [4]
    4. The carburetor according to paragraphs. 1-3, characterized in that the first tube of the regulating element is made with an end seat surface for interaction with the surface of the movable partition facing the vacuum chamber of the housing.
    [5]
    5. Carburetor according to π. I, characterized in that the conical needle is rigidly mounted in the first valve element, inside of which a fuel supply channel with a fuel nozzle for the conical needle is made.
    [6]
    6. The carburetor according to claim 5, characterized in that a second tube is installed inside the first valve element, forming a top>
    SM is a water-supplying channel and equipped with a fuel jet, the second tube being connected to the housing by means of a regulating connection.
    [7]
    7. The carburetor according to paragraphs. 5 and 6, which is characterized by the fact that. in the first valve element, at least one air jet is made connected to the fuel supply channel behind the fuel jet relative to the fuel flow.
    [8]
    8. A carburetor according to claims 5-7, characterized in that the first valve element is made with a peripheral fuel atomizing ring groove and radial channels connecting the fuel supply channel with the annular groove.
    [9]
    9. The carburetor according to claim 8, cast in that the first valve element has air holes located at the annular parts of the respective radial channels and in communication with the fuel spray annular groove.
    [10]
    10. The carburetor according to paragraphs. 5-9, characterized in that longitudinal slots are made on the first valve element for the passage of the fuel-air mixture when the engine is idling and starting.
    [11]
    11. The carburetor according to paragraphs. 5-10, characterized in that, the connection of the conical needle with the first valve element is made adjustable.
    [12]
    12 Carburetor 1-11, characterized in that the vacuum chamber is provided with an air channel for connection with the atmosphere.
    [13]
    13. The carburetor according to claim 12, about t l. Characterized in that the air channel of the vacuum chamber is equipped with a regulatory element.
    [14]
    14. The carburetor according to paragraphs. 1-13, characterized in that the housing has an additional vacuum channel for the ignition distributor, equipped with a third valve element interacting with the first valve element to provide overlap at a given position of the latter.
    [15]
    15. The carburetor according to claim 14, characterized in that the housing is equipped with a housing element having a passage channel forming an additional vacuum channel, and the third valve element is located inside the passage channel and is equipped with a spring and an external pusher for interacting with the first valve element.
    ♦
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    同族专利:
    公开号 | 公开日
    FR2522368A1|1983-09-02|
    SE8301000D0|1983-02-23|
    AR231167A1|1984-09-28|
    AU1184283A|1983-09-08|
    CA1211665A|1986-09-23|
    SE445846B|1986-07-21|
    DK86683D0|1983-02-24|
    BR8300979A|1983-11-16|
    IT8367233D0|1983-03-01|
    NZ199858A|1985-07-12|
    CH651356A5|1985-09-13|
    IE54078B1|1989-06-07|
    AU559261B2|1987-03-05|
    DE3307018A1|1983-09-08|
    ZA831182B|1983-11-30|
    DK86683A|1983-09-02|
    FR2522368B1|1987-04-10|
    JPS58190555A|1983-11-07|
    IT8353003V0|1983-03-01|
    IN157333B|1986-03-01|
    GB8305655D0|1983-03-30|
    SE8301000L|1983-09-02|
    IT1201036B|1989-01-27|
    ES520160A0|1984-02-16|
    BE896057A|1983-07-01|
    ES8402908A1|1984-02-16|
    IE830369L|1983-09-01|
    DK155098B|1989-02-06|
    GB2117045B|1985-07-17|
    GB2117045A|1983-10-05|
    US4455979A|1984-06-26|
    NL8300758A|1983-10-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1972686A|1931-01-09|1934-09-04|Lorenzen Christian|Carburetor|
    US2021554A|1934-03-17|1935-11-19|Jacoby Hans-Eberhard|Carburetor|
    CH255804A|1946-04-09|1948-07-15|Schneebeli Hugo|Carburetor.|
    US2559859A|1948-12-11|1951-07-10|Chrysler Corp|Supercharged engine control|
    US3273869A|1963-08-19|1966-09-20|Glenn R Morton|Carburetor means for internal combustion engines|
    US3265375A|1963-10-30|1966-08-09|Glenn R Morton|Carburetor for internal combustion engines|
    AU467656B2|1972-09-20|1975-12-11|Victa Ltd.|Carburettors for internal combustion engines|
    US3920778A|1974-06-26|1975-11-18|Rugeris John De|Carburetor apparatus having an improved fuel metering arrangement|
    US4013050A|1975-02-28|1977-03-22|Motorola, Inc.|Ignition system for a multifueled engine|
    US4000225A|1976-01-15|1976-12-28|Ford Motor Company|Sonic flow variable area venturi carburetor|
    US4198358A|1976-02-09|1980-04-15|Dorothy J. Archer|Carburetor with self adjusting double venturi|
    US4021512A|1976-02-12|1977-05-03|Aeronutronic Ford |Carburetor air turbine fuel distributor|DE3643882A1|1986-12-22|1988-06-30|Vdo Schindling|FUEL-AIR MIX TREATMENT DEVICE FOR COMBUSTION ENGINES|
    CN1101517C|1998-05-20|2003-02-12|新西兰运输燃料系统有限公司|Fuel regulating system|
    JP2001280197A|2000-03-29|2001-10-10|Walbro Japan Inc|Rotary throttle valve-type carburetor|
    US20110210279A1|2010-02-26|2011-09-01|Midwest Sealing Products, Inc.|Gas Valves for Pneumatic Devices|
    DE102016123826A1|2016-12-08|2018-06-14|Volkswagen Aktiengesellschaft|Mixture forming device for a gas engine and gas engine|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    NZ199858A|NZ199858A|1982-03-01|1982-03-01|Carburettor for spark ignition i.c.engine|
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