SU797605A3 - Carburator air flap control device of internal combustion engine - Google Patents

Carburator air flap control device of internal combustion engine Download PDF

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Publication number
SU797605A3
SU797605A3 SU731987942A SU1987942A SU797605A3 SU 797605 A3 SU797605 A3 SU 797605A3 SU 731987942 A SU731987942 A SU 731987942A SU 1987942 A SU1987942 A SU 1987942A SU 797605 A3 SU797605 A3 SU 797605A3
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SU
USSR - Soviet Union
Prior art keywords
choke
motor
opening
ambient temperatures
mixtures
Prior art date
Application number
SU731987942A
Other languages
Russian (ru)
Inventor
Джозеф Армстронг Джеймс
Original Assignee
Тексас Инструментс Инкорпорейтед (Фирма)
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Publication of SU797605A3 publication Critical patent/SU797605A3/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M23/00—Apparatus for adding secondary air to fuel-air mixture
    • F02M23/04—Apparatus for adding secondary air to fuel-air mixture with automatic control
    • F02M23/10—Apparatus for adding secondary air to fuel-air mixture with automatic control dependent on temperature, e.g. engine temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
    • F02M1/08—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling becoming operative or inoperative automatically
    • F02M1/10—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling becoming operative or inoperative automatically dependent on engine temperature, e.g. having thermostat
    • F02M1/12—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling becoming operative or inoperative automatically dependent on engine temperature, e.g. having thermostat with means for electrically heating thermostat
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Means For Warming Up And Starting Carburetors (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

An improved automotive choke control reduces the pollutant content of automotive exhaust gasses by regulating a choke to supply fuel-enriched air-fuel mixtures to an internal combustion engine or motor only while such enriched mixtures are necessary to facilitate motor starting and to supply leaner air-fuel mixtures to the motor as soon as the motor is able to utilize the leaner mixtures while the motor is being heated to its normal operating temperature. In the control, a thermostat metal coil is arranged to move and to open a choke valve as the coil is heated. Two self-regulated electrical resistance heaters are thermally coupled to the thermostat metal coil for heating the coil to open a choke at selected rates, one heater being arranged to be energized when motor operation is first started for assuring that opening of the choke is initiated promptly after motor starting particularly at lower ambient temperatures and for assuring that opening of the choke proceeds at least at a selected rate, and the other heater being arranged to be energized upon actuation of a thermostatic switch at ambient temperatures above a selected level for opening the choke at a relatively faster rate and for assuring that full opening of the choke is completed promptly after the motor has reached its normal operating temperature particularly at higher ambient temperatures. Also shown is a novel and advantageous heater element having two portions arranged to serve as separate heaters in the control device.

Description

нагревателей включен термовыключатель , св занный по теплопередаче с окружающей средой, а терморегулирующий орган устройства.может быть заключен в кожух, св занный по теплопередаче с двигателем.Heaters include a thermal switch associated with the heat transfer to the environment, and the thermostatic unit of the device. It can be enclosed in a housing connected to the engine with the heat transfer.

На фиг. 1 изображено предлагаемо устройство, внешний вид; на фиг.2 поперечный разрез А-А на фиг. 1, пр этом термовыключатель показан в выключенном состо нии; на фиг. 3 поперечный разрез Б-Б на фиг. 1, термовыключатель показан во включенном положении; на фиг. 4 - схема устройства.FIG. 1 shows the proposed device, the appearance; in FIG. 2 a cross-section A-A in FIG. 1, in this case, the temperature switch is shown in the off state; in fig. 3 is a cross-section bb in fig. 1, the thermal switch is shown in the on position; in fig. 4 is a diagram of the device.

Внутри корпуса 1 из прочного диэлектрика размещен терморегулирующи орган в виде спирали 2 из биметаллической ленты, причем слой Металла с более высоким коэффициентом теплового расширени  расположен на внутренней поверхности спирали 2. На одном конце спирали 2 выполнен поводо 3, воздействующий на рычаг 4 управлени  воздушной заслонкой. Другой конец спирали 2 закреплен в прорезиInside the body 1 of a strong dielectric, a thermo-regulating organ is placed in the form of a helix 2 of a bimetallic tape, with a metal layer with a higher coefficient of thermal expansion located on the inner surface of the helix 2. At one end of the helix 2, an actuator 3 is used to act on the air damper control 4. The other end of the helix 2 is fixed in the slot

5втулки 6 теплоотвод щего элемента .7, который установлен на внутреннем5 bushings 6 of the heat sink element .7, which is mounted on the inner

кольцевом выступе корпуса 1. Втулкаannular ledge housing 1. Sleeve

6может быть выполнена за одно целое с .теплоотвод щим элементом 7 или в виде отдельной детали, соединенной с ним. Теплоотвод щий элемен6 can be made in one piece with the heat sink element 7 or as a separate part connected to it. Heat sink element

7и втулка 6 выполнены из металла7 and sleeve 6 are made of metal

с высокой теплопроводностью. Теплоотвод щий элемент 7 прикреплен к внутреннему торцу корпуса 1 заклепками 8, под головки которых на наружной поверхности корпуса 1 установлены соединительные шины 9. 1т1ины 9 контактируют с металлическим кольцевым фланцем 10, которым устройство присоединено к корпусу 11 карбюратора. В корпусе 11 карбюраJTOpa может быть выполнено отверстие соедин ющее полость устройства с выпускным коллектором двигател ..with high thermal conductivity. The heat-removing element 7 is attached to the inner end of the body 1 by rivets 8, under the heads of which on the outer surface of the body 1 there are connecting busbars 9. The connecting bars 9 are in contact with the metal ring flange 10 with which the device is connected to the carburetor body 11. In case 11 of the JTOpa carburet, a hole can be made connecting the device cavity with the engine exhaust manifold.

8полости 12, котора .образована теплоотвод щим элементом 7, кольцевым внутренним выступом корпуса 18cavity 12, which is formed by the heat sink element 7, the annular inner lug of the housing 1.

и его торцом, расположены два электронагревател  13 и 14,прижатые к поверхности теплоотвод щего элемента 7 пружинами 15 и 16. Пружина 16 заклепкой17 соединена с контактной платой 18, установленной на наружном кольцевом выступе корпуса 1. Пружина 15 присоединена к торцу корпуса 1 контактной заклепкой 19. В полости 20, образованной наружным кольцевьм выступом корпуса 1, его торцом и контактной платой 18, расположен термовыключатель 21. Терморегулируемый диск 22 прижат к выступам корпуса 1 пружиной 23, опирающейс  на контактную плату 18. Материал, из которого выполнен диск 22, подобран таким образом, что при нагревании выше заданной температуры , например 15С, он прогибаетс  до упора в контактную заклепку 19. Устройство дл  управлени  воздушной заслонкой подсоединено посредством выключател  24 через контактную плату 18 к одному выводу источника 25 питани . Корпус 11 карбюратора присоединен к другому выходу источнка 25 питани . Выключатель 24 может быть совмещен с замком зажигани  (на схеме не показан). Терморегулирующий орган 2 может быть заключен в кожух, св занный по теплопередаче с двигателем.and its end face are two electric heaters 13 and 14, pressed to the surface of the heat sink element 7 by springs 15 and 16. The spring 16 is riveted 17 connected to a contact plate 18 mounted on the outer annular protrusion of the housing 1. The spring 15 is attached to the end of the housing 1 by a contact rivet 19 In the cavity 20 formed by the outer annular protrusion of the housing 1, its end face and the contact plate 18, there is a thermal switch 21. The temperature-controlled disk 22 is pressed against the projections of the housing 1 by a spring 23 supported on the contact plate 18. The material from which The disk 22 is made, chosen so that when heated above a predetermined temperature, for example 15C, it bends until it stops against the contact rivet 19. A device for controlling the air damper is connected via a switch 24 via the contact board 18 to one output terminal of the power supply 25. The carburetor body 11 is connected to another output of the power supply source 25. Switch 24 can be combined with the ignition switch (not shown). The thermostatic unit 2 may be encased in heat transfer to the engine.

Устройство работает следующим образом.The device works as follows.

При запуске двигател  электронагреватель 14 при помощи выключател  24 подключаетс  к источнику питани  25. При этом ток идет через контактную плату 18, заклепку 17, пружину 16, электронагреватель 14, Теплоотвод щий элемент 7, заклепки 8, соединительные шины 9, кольцевой фланец 10 и корпус 11 карбюратора. Электронагреватель 14 нагреваетс  до своей предельной температуры, нагрева  при этом Теплоотвод щий элемент 7 и св занную с ним по теплопередаче спираль 2, котора  начинает раскручиватьс  и открывать воздушную заслонку. Дл  компенсации вли ни  температуры окружающей среды предусмотрен электронагреватель 13, вклченный в цепь через термовыключатель 1. Электронагреватель 13 позвол ет избежать снижени  заслонки по мере уменьшени  разности температур между спиралью 2 и теплоотвод щим элементом 7. При температуре .терморегулируемого диска 22 выше заданной (например 15С) он прогибаетс  до упора в контактную заклепку 19 ( показано на фиг. 3), замыка  цепь электронагревател  13. При этом ток протекает через контактную плату 18, пружину 23, терморегулируемый диск 22, заклепку 19, пружину 15, электронагреватель 13, Теплоотвод щий элемент 7, заклепки 8, соединительные шины 9 и кольцевой фланец 10 на корпус 11 карбюратора. Температура терморегулируемого диска определ етс  воздействием температуры окружающей среды, теплопередачи от электронагревател  14 и от две. Работа  совместно, электронагреватели 13 и 14 быстрее нагревают Теплоотвод щи элемент 7 и спираль 2, в результате .чего увеличиваетс  скорость открывани  воздушной заслонки карбюратора . Материалы, из которых изготовлены электронагреватели 13 и 14, имеют положительный температурный коэффициент сопротивлени , следовательно , их сопротивление при увеличении их температуры возрастает.. В результате при достижении предельной температуры потребл ема When starting the engine, the electric heater 14 is connected via a switch 24 to the power source 25. At the same time, the current flows through the contact plate 18, the rivet 17, the spring 16, the electric heater 14, the heat sink element 7, the rivets 8, the connecting busbars 9, the annular flange 10 and the housing 11 carburetor. The electric heater 14 is heated to its extreme temperature, while heating the Heat-removing element 7 and the coil 2 associated with it in heat transfer, which begins to unwind and open the air damper. In order to compensate for the influence of the ambient temperature, an electric heater 13 is included in the circuit through the thermal switch 1. The electric heater 13 avoids the damper decrease as the temperature difference between helix 2 and the heat sink element 7 decreases. At a temperature-controlled disk 22 above a predetermined temperature (for example, 15C ) it bends as far as it will go into the contact rivet 19 (shown in FIG. 3), the circuit is connected to the electric heater circuit 13. At the same time, the current flows through the contact plate 18, the spring 23, the temperature-controlled disk 22, molding 19, a spring 15, heater 13, the heat sink member 7, the rivet 8, connecting busbars 9 and an annular flange 10 on the body 11 of the carburettor. The temperature of the temperature-controlled disk is determined by the effect of ambient temperature, heat transfer from the electric heater 14 and from two. Working together, electric heaters 13 and 14 heat up the Heat Sink element 7 and helix 2 faster, as a result of which the speed of opening the carburetor choke is increased. The materials of which electric heaters 13 and 14 are made have a positive temperature coefficient of resistance, therefore, their resistance increases with an increase in their temperature .. As a result, when the limiting temperature is reached,

электронагревател ми 13 и 14 мощность снижаетс , предотвраща  их перегрев.electric heaters 13 and 14 power is reduced, preventing their overheating.

В случае применени  предлагаемог устройства на карбюраторах, снабжённых отверстием, соедин ющим полость устройства с выпускным коллектором двигател , на спираль 2 терморегулирующего органа дополнительно воздействует тепло выхлопных газов две/ что обеспечивает дополнительное увеличение скорости открывани  воздушной заслонки. ,.In the case of application of the proposed device on carburetors equipped with a hole connecting the device cavity to the engine exhaust manifold, spiral 2 of the thermostatic body is additionally affected by exhaust gas heat of two / which provides an additional increase in the speed of opening the air damper. ,

Таким образом устройство дл  управлени  воздушной заслонкой карбюратора обеспечивает быстрое и эффективное регулирование положени  воздушной заслонки в широком диапазоне температур/окружающей среды, сокращает врем  работы двигател  на обогащенной горючей смеси после его запуска, что уменьшает загр знение атмосферы выхлопными газами.Thus, the carburetor air damper control device provides quick and effective control of the air damper position in a wide temperature / environment range, shortens the engine running time on the enriched fuel mixture after it starts, which reduces atmospheric pollution with exhaust gases.

Claims (2)

1. Устройство дл управлени  воздушной заслонкой карбюратора1. Device for controlling the carburetor air damper двигател  внутреннего сгорани , содержащее исполнительный терморегулирующий орган дл  перемещени  заслонки, св занный по теплопередаче с теплойзлучающим устройством, о тличающеес  тем, что, с целью повышени  быстродействи  в широком диапазоне температур окружающей среды, теплоизлучающее устройство выполнено в виде двух, -парсшлельно соединенных электронагревателей an internal combustion engine containing a thermostatic actuating actuator for moving the valve associated with heat transfer to a heat radiating device, which is characterized by the fact that, in order to improve speed in a wide range of ambient temperatures, the heat radiating device is made in the form of two, -sapartly connected electric heaters 0 с положительным температурным коэффициентам сопротивлени  и термовыключател , св занного по теплопередаче с окружающей средой и включенного в цепь одного из электроf нагревателей.0 with positive temperature coefficients of resistance and thermal switches associated with the heat transfer to the environment and connected to the circuit of one of the electric heaters. 2. Устройство по п. 1, о т л ичающеес  тем, что терморегулирующий орган св зан в кожухе по теплопередаче с двигателем.2. The device according to claim 1, wherein the thermostatic body is connected in the casing for heat transfer to the engine. (Г(Y Источники информации, прин тые во внимание при экспертизеSources of information taken into account in the examination 1.Панфилов В.Т. и Др, Приборы системы питани  двигателей автомобилей ЗИЛ. М,, Машгиз, 1961,1. Panfilov V.T. and dr, ZIL car engine power supply devices. M, Mashgiz, 1961, с.90-96.90-96. 5five 2.Патент ФРГ 2149253, кл. 46 с 1/10, опублик..1972. 2. The patent of Germany 2149253, cl. 46 of 1/10, published in 1972.
SU731987942A 1972-12-05 1973-12-04 Carburator air flap control device of internal combustion engine SU797605A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00312428A US3806854A (en) 1972-12-05 1972-12-05 Control for automotive choke

Publications (1)

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SU797605A3 true SU797605A3 (en) 1981-01-15

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SU731987942A SU797605A3 (en) 1972-12-05 1973-12-04 Carburator air flap control device of internal combustion engine
SU762326946A SU797606A4 (en) 1972-12-05 1976-03-02 Carburator air flap control device

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US (1) US3806854A (en)
JP (1) JPS4986725A (en)
CS (1) CS209467B2 (en)
DD (1) DD111235A5 (en)
DE (1) DE2360454A1 (en)
FR (1) FR2209047B1 (en)
GB (2) GB1447275A (en)
HU (1) HU175425B (en)
IT (1) IT994399B (en)
PL (1) PL89875B1 (en)
RO (1) RO90997B (en)
SE (2) SE405393B (en)
SU (2) SU797605A3 (en)
YU (1) YU36405B (en)

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DE1814685A1 (en) * 1968-12-14 1970-06-25 Daimler Benz Ag Automatic cold start device
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2451196C2 (en) * 2007-03-09 2012-05-20 Маньети Марелли Пауэртрейн С.П.А. Ice volumetric air flow rate control valve

Also Published As

Publication number Publication date
SU797606A4 (en) 1981-01-15
HU175425B (en) 1980-07-28
CS209467B2 (en) 1981-12-31
DE2360454A1 (en) 1974-06-06
SE405393B (en) 1978-12-04
FR2209047A1 (en) 1974-06-28
PL89875B1 (en) 1976-12-31
DE2360454C2 (en) 1988-09-01
YU36405B (en) 1983-06-30
RO90997A (en) 1987-02-27
JPS4986725A (en) 1974-08-20
SE7614400L (en) 1976-12-21
YU281973A (en) 1981-11-13
FR2209047B1 (en) 1979-01-26
GB1449807A (en) 1976-09-15
GB1447275A (en) 1976-08-25
IT994399B (en) 1975-10-20
DD111235A5 (en) 1975-02-05
US3806854A (en) 1974-04-23
RO90997B (en) 1987-02-28

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