• 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:
    1486472 Carburetter automatic choke valves HONDA GIKEN KOGYO K K 6 Sept 1974 [7 Sept 1973] 39081/74 Heading F1H An I.C. engine includes a carburetter which comprises a choke valve 4, temperature sensitive means, bi-metal spring 16, for positioning the choke valve in dependence upon temperature when the engine is running, closing means, spring 30, rod 29, adapted and arranged to operate when the engine is stopped so as to move the choke valve in the closing direction from a position determined by the temperature sensitive means; and means diaphragm 27, adapted and arranged to remove the effect of the closing means when the engine reaches a state of substantially even firing after starting, whereby the choke valve can open to a position determined by the temperature sensitive means and subsequent movement of the choke valve 4 while the engine is running is independent of the closing means. The bi-metal spring 16 is connected to the choke valve to apply a closing torque thereto, which increases as temperature falls below a predetermined temperature T, see Fig. 6 (not shown), and a heater 18 is provided to heat the bi-metal spring. Before starting from cold, diaphragm 27 of actuator 25 is in its right hand position so that the closing torque applied to choke valve 4 by the bi-metal spring 16 is greatest. On cranking, the pressure in chamber 26 falls and opens the choke valve to a degree that depends upon the temperature so that the mixture strength is greater the lower the temperature. On starting, the choke valve is opened by a predetermined amount by the diaphragm 27 and the heater 18 is energized to heat the bi-metal spring 16 and open the choke valve 4 further. An electromagnetic actuator may be used in place of vacuum actuator 25. When the throttle valve 5 is opened by cable 10, a connecting rod 41 attached to driving crank 42 on the shaft 7 actuates a bell-crank 40 to engage an arm 222 of choke driving lever 22, which acts by way of bi-metal spring 16 to open the choke valve 4 if it is not already open so that sufficient air reaches the engine under full throttle conditions even when cold. A fast idling system 38 includes a lever 44 mounted on a shaft 43 and biased by a spring 52 so that a screw 46 abuts an operating rod 48 of a temperature sensor 47 responsive to engine coolant or lubricant temperature. One end of lever 44 co-operates with a boss 45a on an arm 45 to move the throttle valve 5 moderately when the coolant or lubricant temperature is low to give a fast idle. Expansion of wax 50 in a canister 49 as the temperature rises allows the throttle valve to move to its minimum opening position. A lever 57 has an arm 58 which engages in a groove 59 of the lever 44 and a hook 57a which moves to the right as shown in Fig. 1 to engage an arm 221 of lever 22 to hold the choke valve in its wide open position so that when the engine is switched off and the heater 18 thereby de-energized the choke valve does not close as the bi-metal element 16 cools but is kept open until the coolant or lubricant temperature falls enough to allow the hook 57a to disengage from the arm 22 1 . In a modification Figs. 4 and 5 (not shown), rod (129) actuated by vacuum actuator 25 engages a contact arm (24a) integral with lever 24 instead of acting though the bi-metal element 16.
    公开号:SU828982A3
    申请号:SU742059357
    申请日:1974-09-06
    公开日:1981-05-07
    发明作者:Сисидо Тосимаса；Номура Тосио
    申请人:Хонда Гикен Когио Кабусики Кайся (Фирма)；
    IPC主号:
    专利说明:

    04) CARBURETTOR FOR ENGINE INTERNAL
    Combustion
    4, placed eccentrically on the axis e, so that under the influence of air; the flow is mainly flow through: the valve 4 is moving to move the open position. Basically, 2 and ds are full of flax 3 channels of the left 1-1Y respectively 6 and up to 1Ю.l: nit1: on the 7 throttle valves, pasiyieMeH.Mve, respectively, i-ra, 8 and 9, the axis 8 of the main throttle 6 is equipped with closing spring iO and driving lever 11 connected to control cable 12. Axis 8 also has a stop 13 for adjusting the idler screw 14. Adjust: level screw 14 slashed in projection, 15 body 1.
    To the protrusions 16 of the housing 1 (see Fig. 2) is attached a housing element 17 of the main thermosensitive element comprising a spiral bimetallic element 18 and an electric heater 19 made from nichrome wire. Inside the bimetallic element 18 is connected to the roller 20, which is made with -The ability to rotate in the lid of the 21 bases of the heat-sensitive sensitive skin .. l. the outer end of the bimetallic element; This 18 is connected to the lever 22, which is connected with the roller 23, which is provided with an external I-shaped lever; silt ;; -. 24 of which is connected through the bar 25 by a lever 26 mounted on the axis of the air damper 4. The heater 19 has a terminal 1 27 connected to the battery automatically, and the engine is completely combusted in the engine and provides Heating the inside of the main temperature-sensitive element, and the bimetallic element 18 has a deformation characteristic of heating, to ensure: an optimum opening angle of the warmer (emergency valve 4.
    Near the casing 1 there is a damper device, made in the worm of a vacuum drive, in the case 28 of which the working chamber 29 is made and a diaphragm 30 is fixed, connected to the thrust 31 connected by a lever 32 fixed on the roller 20. In the working chamber 29 a spring 33 is installed air damper 4, and Dia (| rpgma 30 is an element to turn off the spring LIA 33. The working chamber 29 by means of a pipeline 34 and shader
    , 35 dcdclues to a, aflpociceRJj;: o /,: /.-Rekstk, have an additional leak ore kanagea 3 ,, In sheupore 35 ustsvdon oysher 36, B mainly protochdsm KiUi.ae 2 installed a diffuser 37 with a driver about 8 liquid fuel, connect camera to camera / avCOBOY camera 39.
    Between the axis 8 of the main throttle body of the junction 6 to the axis of the airway jQC 4, there was no 1a nematic connection that ensures the opening of the air damper 4 when the main dro-axle z-ace 6 f is opened. b is formed by a protrusion 4-0, discharged in one piece with an emphasis. 13, -th g-oh. 4l, and the two shoulders lever 42, the Zlen-1b m installation on the axis 43 and the combined OD1-CMM arm with head 41. Another lever 4-2 can be contacted with); stove 44 I-shaped lever.
    RSarbyurator dspolnit-zlko sg-yubzhen O} with the rest of the 11th prop; 45, dely ;; - laiM on the double shoulder arm 46.; 7stako: 2jsRHHOM on the axis 43, and dopolt-l-ellygl temperature-sensitive. zlemento L; Bbinoji in the form of tank 47, ssiiCr-ieH-roii expanding with HAI-TH JLLS; - / 48. for example, paraffin, and I. / 1, coy
    le compacted sliding el.op.pent 50, n 5 pusher pusher / s-l. 52, pusher 52 calyx; kgI ;;). with a ramified Eu (nt bsd usn: tanovlenjHE, iM gy shoulder 54 of a three shoulder arm mounted on the axis 5-5. One of the sinew levers is made in the form of c TOiiopa 56; associated with two shoulders; chagrm 46 TrehplshGY lever. 57, which can contact with an additional pin 58; mounted on an axis 8, a three-arm axle also has a spring 58 that provides a constant clamping of the adjusting screw. 53. to the pusher 52. E. The tank 47 is installed in the hot-bed chamber 60, made of which. t.vod; -t-- .. un-tseradSh 62 and 63. connected to the engine fluid system for example), cooled or grease.
    The carburetor works as follows,
    When the engine is not working} in the working chamber 29 of the vacuum drive, the pressure driver is atmospheric, due to which, under the action of the spring 33, the diameter (|) of the gear 30 is retracted to the extreme right position (see FIG. 1) and the roller 20 is turned in the position, with KOTOIJOM, the air damper 4 is moved to the position of blocking the main flow channel 2, while the inner end of the spiral bimetallic element 18 is rotated at a given angle. As can be seen from the graph (see Fig. 4), which shows the dependence of the force when closing the air damper 4 on temperature, the pin 64 depicts the force of its closure when it acts. only the bimetallic element 18, line 65 shows the force of closing the air damper 4 when the roller 20 rotates at a given angle and when exposed to the spring 33 and element 18. However, if the engine temperature is below point 66, the air damper 4 is completely closed and the force holding it in the closed position, increases as the temperature decreases, as shown by the line 6.7. Thus, when launching a motor under conditions of low temperatures with the help of a starter, the air flow through the main flow channel 2 opens air aacnoHiy at a booster level at which the required degree of enrichment of the mixture is provided, depending on. ambient temperature. After starting the engine, as soon as its speed is to some extent. stabilized with, normal combustion and engine cylinders occur, the resolution is transmitted through conduit 34 to the working chamber 29 of the vacuum drive. Under the influence of vacuum, the diaphragm AO moves to the extreme left position (see Fig. 3), and the ha 31 turns the roller 2O and the inner end of the bimetallic element 18 towards the opening of the air damper 4 by a given angle. Thus, the force of the spring 33 is compensated. and the angle of rotation of the air damper occurs along line 64. From this point on, a current passes through the electric heater 1, and the bimetallic element 18 is heated until it reaches the operating temperature. When the bimetallic element 18 is heated, it is deformed, allowing the lever 22 to move, and with it the roller 23 and the U-shaped lever, which, by means of a shoulder 24- through 25, opens the air barrier 4. In FIG. Figure 5 shows a graph of the value of the opening of the air damper as a function of time. Line 68 shows opening at normal ambient temperatures, and Line 69 shows at low ambient temperatures. As can be seen from the graph) ik and FIG. 5, a quick opening of the air damper 4 by an amount depending on the temperature and its subsequent smooth further opening are provided. In this way, it is rich in the mixture prepared by the carburetor, it is depleted immediately after the start-up, and then it is further depleted, in connection with which the combustion of fuel in the engine is improved and the toxicity of exhaust gases is reduced. Instead of a vacuum drive, an electromagnetic drive can be applied, which operates at the point in time when the engine speed stabilizes. If the engine throttle valve 6 is opened by the cable 12 beyond the predetermined position when the engine warms up, the two shoulders arm 42 comes in contact with the shoulder 44 V-shaped lever and provides simultaneous opening of the air damper 4, regardless of the force of the bimetallic element 18. Thus, the supply of sufficient quantity is achieved VA Air for a motor operating under load at low ambient temperatures. When the engine starts at a low ambient temperature, its lubricating or coolant temperature is low, and therefore material 48 has a small volume. As a consequence, the three shoulders arm is cranked by a spring 59 so that the protrusion 57 acts on the additional arm 58, providing the predetermined Opening of the main throttle valve 6. As the engine temperature rises, the temperature of the fluid passing through the heating chamber 6 O increases, due to as the material 48 expands, the element 50 is mixed in the sleeve 49 / and rotates the three blades arm through the pusher, providing a smooth cover for the main throttle valve 6. Thus, the engine speed is adjusted depending on the degree of heating of the latter. When the engine reaches operating temperature, the material 48 moves the pusher 52 so that the three-arm arm is its own; with the stogore 56, the double-arm arm 46 moves, which with its abutment 45 comes into contact with the arm of the 24 "/ -shaped lever. When the engine is stopped and the temperature of the spiral bimetallic element 18 decreases due to the supply of the current to the electric heater 19, the temperature of the liquid in the heating chamber | in, is above a predetermined level., not "The air spacing 1 and 4 move to the closing position, since the stop 45 prevents the over-leverage from moving through the shoulder 24. Therefore, a repeated start-up of a warm-up engine occurs when the engine is open for air, the engine starts, and the engine start is facilitated, and the content of products of incomplete combustion in exhaust gases is reduced. In the carburetor shown in FIG. 6 and 7, the axle 5 of the air damper 4 has an i-shaped driving lever 7 O, with an I contact stop 71, 1 second contact, with a vacuum actuator 31, "{shaped articulated driving lever 70 pivot1) but also connected with a pull 25 connected, 1 with the shoulder of the 24-shaped lever of the main thermosensitive element, the inner end of the bimetallic element 18 of which is fixed with the help of a pin 72 in the lid 21. In the rest, the first carburettor design of FIG. 6 t and 7 are identical to the carburetor design of FIG. 1. 2 Ef 3., Thus in the carburetor of FIG. and 7, with the engine inoperative, the spring 33 located in the vacuum pump directly acts on the closing of the air damper I; counteracts the force bI of the metal element 18. When the engine starts to work at stable revolutions, the diaphragm 30 of the vacuum drive moves to the left and removes the spring 33 from the air damper 4. Thus, it is under the force of only spiral bimetallic element 18, the force of which has characteristics i along line 64 in FIG. 4. The rest of the carburetor in FIG. 6 and 7 are identical to the operation of the carburetor in FIG. 1, 2 and 31. Thus, the execution of the carburetor., I with an additional restrictive chime and an additional temperature-sensitive i element with a stopper ejected with the possibility of joining with the abutment, ensures the prevention of the closure of the shock & the damper when the engine is stopped is heated, which increases the reliability of the subsequent engine start-up and reduces toxicity of the treated gases. Invention 1, a carburetor for an internal combustion engine, it has a housing with a flow channel and is installed in the last air damper, which is more axial, connected to it, and a heat-sensitive element and a spring, and also an effort deactivation element, and a joint with the latest launcher, about tl and h and FJi and u with t & l, that, in order to prejudice. The air damper is closed when the engine is stopped, the carburetor is additionally equipped with a restrictive stop, kinematically connected with the axis of the valve and an additional temperature-sensitive element with a stop made with the possibility of connection with the stop. 2. The carburetor of claim 1, wherein the additional temperature-sensitive apeite is connected with a pre-heating chamber connected to the engine fluid system, for example, of an å or skid-off system. Sources of information taken into account in the ex-hertize 1, US Patent No. 3544085, class 261-39, 1970.
    Fig 2625 Fiv2
    Fiyo.Z
    69
    5
    / P, 2 ./
    Tl /

    25
    7 /
    7
    权利要求:
    Claims (1)
    [1]
    Claim
    1. Carburetor for an internal combustion engine, comprising a housing with a flow channel and installed in the afterbirth
    FIG. 2
    FIG. 5
    Order 366G Ed. No. 1291 Circulation About the price
    VNIIIPI of the USSR State Committee for Inventions and Discoveries ____________________ Moscow, 113035, Raushskaya nab., 4
    The company "Patent", Moscow, G-59, Berezhkovskaya nab., 24
    类似技术:
    公开号 | 公开日 | 专利标题
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    US3965224A|1976-06-22|Carburetor choke valve positioner
    US1957289A|1934-05-01|Automatic choke control for internal combustion engines
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US8495995B2|2010-06-23|2013-07-30|Briggs And Stratton Corporation|Automatic choke for an engine|US1428599A|1921-10-19|1922-09-12|Joe M Lunz|Thrasher|
    US2309419A|1931-10-09|1943-01-26|Glen R Sisson|Mixture control for internal combustion engines|
    US2336810A|1933-04-15|1943-12-14|Bendix Aviat Corp|Carburetor|
    US2127735A|1934-09-17|1938-08-23|Bendix Prod Corp|Carburetor|
    US2225943A|1939-08-31|1940-12-24|Carter Carburetor Corp|Carburetor choke control device|
    US2262408A|1941-02-27|1941-11-11|Carter Carburetor Corp|Carburetor choke control|
    US2394665A|1944-03-23|1946-02-12|Bendix Aviat Corp|Automatic control for carburetor choke valves|
    US2810559A|1951-11-01|1957-10-22|Bendix Aviat Corp|Carburetor|
    US2946577A|1957-06-28|1960-07-26|Gen Motors Corp|Choke lock-out|
    US2970825A|1958-02-03|1961-02-07|Holley Carburetor Co|Automatic choke|
    US2969783A|1958-08-13|1961-01-31|Gen Motors Corp|Choke actuating mechanism|
    US2943848A|1958-10-06|1960-07-05|Acf Ind Inc|Separate thermostat controlled fast idle cam|
    FR79550E|1961-04-15|1962-12-14|Sibe|Improvements to carburettors fitted with an automatically controlled auxiliary starting device|
    DE1249589B|1961-07-17|1967-09-07|Societe Industrielle De Brevets Et D'etudes S.I.B.E., Neuilly-Sur-Seine, Seine |Carburettor with starting device with eccentrically mounted choke|
    US3159692A|1962-04-02|1964-12-01|Holley Carburetor Co|Choke mechanism|
    US3284063A|1963-07-29|1966-11-08|Acf Ind Inc|Carburetor|
    US3248675A|1964-07-28|1966-04-26|Ford Motor Co|Cold weather enrichment device for an internal combustion engine|
    US3807709A|1970-09-24|1974-04-30|Nippon Denso Co|Carburetor|
    FR215189A|1971-08-04|
    JPS5224603B2|1973-11-07|1977-07-02|Honda Motor Co Ltd|
    JPS5096814U|1973-12-29|1975-08-13|US4340549A|1981-03-27|1982-07-20|Mckim Robert E|Dual input carburetor|
    DE3127261C1|1981-07-10|1983-02-03|Pierburg Gmbh & Co Kg, 4040 Neuss|Carburetor|
    US4344898A|1981-12-10|1982-08-17|Aisan Kogyo Kabushiki Kaisha|Carburetor controlling system|
    JPS6220675Y2|1982-01-21|1987-05-26|
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    US6941916B2|2003-10-27|2005-09-13|Arctic Cat Inc.|Auto enrichener|
    US7628387B1|2008-07-03|2009-12-08|Briggs And Stratton Corporation|Engine air/fuel mixing apparatus|
    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
    JP10028273A|JPS5840015B2|1973-09-07|1973-09-07|
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