• 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 carburetor comprising a main barrel (1) in which there is a throttle (5) which turns integrally with a shaft (6); an idle system (2) opens into the main barrel (1) through three holes (3a,3b,3c); a lever (7) splined to the shaft (6) and connected to the accelerator (8) to open the throttle (5) against the action of a spring (9); stop devices (10) operate on the lever (7) to define a first position of the throttle 5 for which the said holes (3a,3b,3c) are upstream; a second lever (11) is idle mounted on the shaft (6) and, by means of pushers (13) and against the action of a rod (17) positioned by a rotating cam (27) with an electromagnetic organ, rotates the first lever (7) and defines, when the accelerator (8) is released, small opening positions of the throttle (5) differing from the first position; a microprocessor gearbox processes the signals expressing the functioning conditions of the engine to operate the electromagnetic organ.
    公开号:SU1181559A3
    申请号:SU833557634
    申请日:1983-02-21
    公开日:1985-09-23
    发明作者:Бонфиглиоли Сильверио；Триоло Инносенцо；Гарделлини Джованни
    申请人:Вебер С.П.А.(Фирма)；
    IPC主号:
    专利说明:

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    This invention relates to mechanical engineering, in particular to carburetors for an internal combustion engine.
    The purpose of the invention is to reduce the size of the carburetor,
    FIG. 1 schematically shows the proposed carburetor for an internal combustion engine; in fig. 2 electronic control unit circuit.
    The carburetor includes a housing 1 with a mixing chamber 2 and an idling system 3, located in the mixing chamber 2 rotary throttle valve 4, placed at the three output windows 5.- 7 of the idling system 3, and mounted on the drive roller 8 fitted with a rigidly connected the first lever 9 connected to the throttle 10 of the accelerator pedal (not shown) and equipped with a return spring 11, and the second lever 12 freely mounted on it, the first movement limiter made in the form of a screw 13 fixed on the housing 1, and Tue An overload stop, made in the form of a rotary cam 14. The first lever 9 has a first arm 15, which is used for contacting a screw 13, and a second arm 16, which is used for contacting a stop 17, will perform # 1m on the first arm 18 of the second arm 12, the second the shoulder 19 of which is provided with a lug 20. The steering cam 14 is kinematically connected with the output shaft 21 of a stepper motor equipped with a permanent magnet (not shown), the kinematic chain having a gearbox, made in the form of a housing element 22, equipped with a fixed pole 23 and surrounding, his cam 14, rotating gear 24, mounted on the output shaft 21 of the stepping motor, and satellites 25, located along the stationary and rotating gears 23 and 24 and located on water 1, the 26, associated with the swivel cuck (akkom 14. Between the boss 20 and the cam 14 is installed a pusher 27 having a guide 28, made in one piece with the body element 22, and a spring 29, providing a constant pressure of the pusher 27 to the bobsha 20. The rotary cam 14 is made with three insulated electrical and contact pover Nost E 30-32, which are provided with
    592
    the possibility of contact with the roller 33 of the pusher 27 and with the sliding contact 34 mounted in the guide 35 of the housing element 22 and electrically isolated from the latter, the housing element 22 being electrically connected to the ground, and the contact surfaces 30-32 and the sliding contact 34 being connected to the inputs 36 of the electronic control unit 37 (FIG. 2), to the output 38 of which a stepping motor is connected, indicated in FIG. 2 by block 39. The internal combustion engine 40 (FIG. 2) has operating mode sensors 41, such as rotational speeds, cooling liquid temperatures, idle speed, etc., which are also connected to inputs 36 of the electronic unit 37, to inputs 42 which is connected to the master unit (not shown).
    The carburetor works as follows.
    When the engine from the load mode at a rotation frequency greater than the first threshold value, goes to the forced idle mode, i.e. the accelerator pedal is released, the electronic unit 37 issues control pulses to the stepping motor 39, which turns the cam 14 until the roller 33 of the pusher 27 comes into contact with the contact surface 32, and the first lever 9 is set in the action of the return spring 11 the position in which its first shoulder 15 contacts with the screw 13, and the throttle valve 4 is set to the fully closed position, together with all three output windows 5-7 with the pre-throttle space of the mixing chamber 2. The fuel supply in days The nozzle through the idle system 3 is stopped, and only air is drawn into the engine, so that the engine braking effect is increased and pollution of atmospheric air by toxic components is prevented.
    As soon as the engine reaches the second threshold of rotational speed as a result of braking, which depends on the engine temperature and is stored in the memory of the driver unit, the electronic unit 37 sends control pulses to the stepper motor 39, which rotates the cam 14 to the position contacts the roller 33 with its surface 31. At the same time, the required rotational speed of the self-idling mode is reached, and through the pusher 27 and the second lever 12, the throttle valve 4 is set to open Toe position in which the at least one exit port 7 is connected with the space zadrosselnpu Ismesitelnoy chamber 2, so that the fuel-air mixture enters dd tor. To translate the engine to minimum idling speed, the electronic unit 37 provides control pulses that rotate the cam 14 clockwise, and the throttle valve 4 does not return to the minimum cover position as the pusher 27 moves up . The same, but in reverse order, occurs if the rotational speed decreases below the minimum idle speed. 59 During engine warm-up, the electronic unit 37 causes the stepper motor 39 to rotate the cam 14 before the roller 33 of the pusher 27 contacts the surface 30, so that the increased rotational speed required in this mode is ensured. At this time, the carburetor works automatically: the position of the throttle valve 4 does not depend on the driver's action. Its initial position and movement to the minimum rotational speed of idling is determined by the control pulses of the electronic unit 37, which receives signals from the engine temperature sensor at the inputs and sets the required rotation frequency accordingly. When translating the engine into load mode, the driver presses the accelerator pedal, so that the electronic unit 37 is de-energized, and; The cam 14 remains in a previously reached position to prevent the engine speed from decreasing as it is required if the accelerator pedal is released.
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    权利要求:
    Claims (1)
    [1]
    CARBURETOR FOR INTERNAL COMBUSTION ENGINE with an electronic control unit that maintains a constant speed at idle, comprising a housing with a mixing chamber and an idle system, a rotary throttle located in the mixing chamber located at the exit windows of the idle system and mounted on the drive roller equipped with a first lever rigidly connected to it, connected with an accelerator pedal rod and provided with a return spring, the first limiter a fastener mounted on the housing and interacting with the first lever, and a second movement limiter made in the form of a rotary cam kinematically connected to the output shaft of a stepper motor, equipped with a permanent magnet and connected to the output of the electronic control unit, to the inputs of which sensors of the engine operating modes are connected, characterized in that, in order to reduce its dimensions, the cam is made, with insulated electrical contact surfaces, the drive roller is provided with freely installed thereon said second lever having a first arm adapted: for focusing the first arm and a second arm provided with a lug and a pusher disposed between the cam and lug and kinetics; the math circuit between the cam and the stepper motor is equipped with a gearbox made in the form of a housing element equipped with a fixed gear and surrounding the cam of the rotating six mounted on the output shaft of the stepper motor, and satellites located between the stationary and rotating gears and mounted on the carrier connected to the cam moreover, an insulated sliding contact is installed in the housing element, connected to one of the inputs of the electronic control unit and in contact with the isolated electronic other cam surfaces, and the pusher of the second lever is electrically non-insulated.
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    类似技术:
    公开号 | 公开日 | 专利标题
    SU634689A3|1978-11-25|System for controlling air feed through inlet manifold internal combustion engine
    SU1181559A3|1985-09-23|Carburettor for internal combustion engine
    US4463723A|1984-08-07|Apparatus for controllably opening a carburetor choke valve
    JPS5726238A|1982-02-12|Idle rate of revolution controller
    US4363303A|1982-12-14|Throttle valve opening control device
    JPH0385338A|1991-04-10|Throttle valve controller of internal combustion engine
    US3847131A|1974-11-12|Throttle operating mechanism for carburetor
    GB1303121A|1973-01-17|
    US3482562A|1969-12-09|Air inlet control mechanism
    US4492198A|1985-01-08|Advancing mechanism for internal combustion engines
    US3934565A|1976-01-27|Choke control system for carburetors
    GB1267436A|1972-03-22|Governed power take-off apparatus for internal combustion engines
    US3774582A|1973-11-27|Idling speed control system for an automotive gasoline powered internal combustion engine
    GB1466544A|1977-03-09|Carburetor choke system
    US2847985A|1958-08-19|Engine starting mechanism
    ES8503582A1|1985-04-01|Stop/start device for controlling the functions of an internal combustion engine for motor vehicles
    US4068634A|1978-01-17|Control system for ignition timing of engine
    KR910700406A|1991-03-15|Dispensing Fuel Injection Pumps for Internal Combustion Engines
    GB1205854A|1970-09-23|Integrated fuel injection pump and ignition distributor assembly
    SU1615423A1|1990-12-23|I.c. engine carburetor
    JP2717296B2|1998-02-18|Control device for two-stroke engine
    GB913077A|1962-12-19|Improvements in or relating to mechanism for starting internal combustion engines
    CA1115147A|1981-12-29|Ignition timing control system
    EP0027823A1|1981-05-06|Transmission means for hybrid type flywheel vehicles
    JPS5724431A|1982-02-09|Engine brake device for 4-cycle internal combustion engine
    同族专利:
    公开号 | 公开日
    AU566483B2|1987-10-22|
    CA1193926A|1985-09-24|
    IT8203341D0|1982-02-22|
    PT76269A|1983-03-01|
    IT1157433B|1987-02-11|
    US4569321A|1986-02-11|
    JPS58170834A|1983-10-07|
    ES519892A0|1984-02-16|
    BR8300910A|1983-11-16|
    AU1110483A|1983-09-01|
    GR78064B|1984-09-26|
    ES8402639A1|1984-02-16|
    PT76269B|1986-01-10|
    EP0087396A1|1983-08-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2338912A|1942-05-01|1944-01-11|Carter Carburetor Corp|Internal combustion engine governor|
    US2454914A|1945-11-23|1948-11-30|Marco Louis De|Speed control mechanism|
    JPS54522B1|1971-02-26|1979-01-11|
    US3760785A|1972-08-07|1973-09-25|Ford Motor Co|Carburetor throttle valve positioner|
    US3752141A|1972-08-07|1973-08-14|Ford Motor Co|Vacuum controlled carburetor throttle valve positioner|
    US3805760A|1972-11-27|1974-04-23|Honda Motor Co Ltd|Run-on prevention device for internal combustion engines|
    US3964457A|1974-06-14|1976-06-22|The Bendix Corporation|Closed loop fast idle control system|
    FR2315617B1|1975-06-26|1977-12-02|Sibe|
    US4022179A|1975-12-29|1977-05-10|Acf Industries, Incorporated|Vacuum controlled throttle positioner and dashpot|
    JPS5633567B2|1976-01-16|1981-08-04|
    JPS52110337A|1976-03-15|1977-09-16|Toyota Motor Corp|Carburetor|
    DE2847021C2|1978-10-28|1988-05-05|Robert Bosch Gmbh, 7000 Stuttgart, De|
    US4237833A|1979-04-16|1980-12-09|General Motors Corporation|Vehicle throttle stop control apparatus|
    JPS6211173B2|1979-05-09|1987-03-11|Hitachi Ltd|
    US4305360A|1979-12-31|1981-12-15|Acf Industries, Inc.|Engine automatic idle speed control apparatus|
    JPS6327535B2|1980-03-07|1988-06-03|Fuji Jukogyo Kk|
    DE3022999C2|1980-06-20|1985-03-28|Pierburg Gmbh & Co Kg, 4040 Neuss|Device for the operation-dependent closing limitation of a carburetor main throttle|
    US4363303A|1980-09-03|1982-12-14|Hitachi, Ltd.|Throttle valve opening control device|IT1157490B|1982-12-20|1987-02-11|Weber Spa|CARBURETOR FOR INTERNAL COMBUSTION ENGINES EQUIPPED WITH ELECTRONIC ACTING BODIES SUITABLE TO MAINTAIN THE MINIMUM RPM OF THE ENGINE AND TO CHECK THE POSITION OF THE STARTING BUTTERFLY DURING THE ENGINE EFFICIENCY|
    JPS61166144U|1985-04-02|1986-10-15|
    DE3524911A1|1985-07-12|1987-01-15|Vdo Schindling|DEVICE FOR REGULATING THE IDLE SPEED OF AN OTTO ENGINE, IN PARTICULAR IN A MOTOR VEHICLE|
    JPH0663460B2|1986-06-02|1994-08-22|株式会社日立製作所|Throttle valve assembly for electric motor driven throttle valve|
    USRE34906E|1986-06-02|1995-04-18|Hitachi, Ltd.|Motor-driven throttle valve assembly|
    DE3843147A1|1988-12-22|1990-06-28|Vdo Schindling|CONTROL DEVICE FOR A MEASURING DEVICE FOR AN INTERNAL COMBUSTION ENGINE|
    US5651343A|1995-11-06|1997-07-29|Ford Motor Company|Idle speed controller|
    JP4731592B2|2008-11-11|2011-07-27|三菱電機株式会社|Intake air amount control device for internal combustion engine|
    EP3033512A2|2013-08-15|2016-06-22|Kohler Co.|Systems and methods for electronically controlling fuel-to-air ratio for an internal combustion engine|
    US10054081B2|2014-10-17|2018-08-21|Kohler Co.|Automatic starting system|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IT03341/82A|IT1157433B|1982-02-22|1982-02-22|CARBURETOR FOR INTERNAL COMBUSTION ENGINES, EQUIPPED WITH ELECTRONIC ACTING BODIES SUITABLE TO KEEP THE MINIMUM RPM OF THE ENGINE CONSTANT|
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