SU797606A4 - Carburator air flap control device - Google Patents

Carburator air flap control device Download PDF

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Publication number
SU797606A4
SU797606A4 SU762326946A SU2326946A SU797606A4 SU 797606 A4 SU797606 A4 SU 797606A4 SU 762326946 A SU762326946 A SU 762326946A SU 2326946 A SU2326946 A SU 2326946A SU 797606 A4 SU797606 A4 SU 797606A4
Authority
SU
USSR - Soviet Union
Prior art keywords
choke
motor
opening
mixtures
assuring
Prior art date
Application number
SU762326946A
Other languages
Russian (ru)
Inventor
Джозеф Армстронг Джеймс
Original Assignee
Тексас Инструментс Инкорпорейтед (Фирма)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Тексас Инструментс Инкорпорейтед (Фирма) filed Critical Тексас Инструментс Инкорпорейтед (Фирма)
Application granted granted Critical
Publication of SU797606A4 publication Critical patent/SU797606A4/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)
  • Air-Conditioning For Vehicles (AREA)
  • Combined Controls Of Internal Combustion Engines (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

Изобретение относится к двигателе строению, в частности к устройствам для управления воздушной заслонкой карбюратора двигателя внутреннего сгорания. 5The invention relates to an engine structure, in particular to devices for controlling the air damper of a carburetor of an internal combustion engine. 5

Известны устройства для управления воздушной заслонкой карбюратора, содержащие исполнительный терморегулирующий орган для перемещения заслонки и электронагреватель, 10 включенный в цепь источника тока через термовыключатель (1].Known devices for controlling the air damper of a carburetor, comprising an executive thermostatic control for moving the damper and an electric heater 10 included in the current source circuit through a thermal switch (1].

Подобные устройства имеют тен- . денцию оставлять воздушную заслонку ^5 в ее исходном положении, т.е.Similar devices have a ten. leave the choke ^ 5 in its original position, i.e.

почти полностью закрытой, в течение слишком длительного периода времени после начала работы двигателя.almost completely closed for too long after starting the engine.

В результате топливо-воздушная 20 смесь, подаваемая в цилиндры двигателя, становится неоправданно богатой. Кроме того, подобное устройство требует‘-много времени для полного открытия закона при повышенной 25 температуре окружающей среды, так что и в этом случае богатая топливовоздушная смесь подаётся в цилиндры двигателя дольше, чем это необходимо. Это приводит к повышенному загряз- 30 нению окружающей среды выхлопными газами двигателя.As a result, the fuel-air 20 mixture supplied to the engine cylinders becomes unreasonably rich. In addition, such a device requires ‘-a lot of time for the law to fully open at an increased ambient temperature 25, so that in this case too, a rich air-fuel mixture is fed into the engine cylinders longer than necessary. This leads to increased environmental pollution by the exhaust gases of the engine.

Цель изобретения - повышение быстродействия устройства в широком диапазоне температур окружающей среды.The purpose of the invention is to increase the speed of the device in a wide range of ambient temperatures.

Цель достигается тем, что термовыключатель дополнительно связай по теплопередаче со вторым электронагревателем.The goal is achieved in that the thermal switch is additionally connected by heat transfer with a second electric heater.

На фиг. 1 показано устройство для управления воздушной заслонкой карбюратора, вертикальный разрез; на фиг. 2 - схема его работы.In FIG. 1 shows a device for controlling a carburetor air damper, vertical section; in FIG. 2 is a diagram of its operation.

Внутри корпуса 1 устройства установлен исполнительный терморегулирующий орган 2, представляющий собой термостатную металлическую спираль. В корпусе выполнены две выемки 3 и 4, в которых расположены два электронагревателя 5 и 6, выполненные из металла с положительным коэффициентом сопротивления и соединены между собой параллельно. В цепь 7 электронагревателя 6 включен термовыключатель 8. Терморегулирующий орган 2 связан по теплопередаче с электронагревателемг 5 и 6 при помощи элемента 9 теплоотвода, который в свою очередь соединен с корпусом 1. Устройство включается в работу посредством включателя 10, который подсоединяет его к аккумуляторной батареи 11.Inside the housing 1 of the device is installed thermostatic control element 2, which is a thermostatic metal spiral. Two recesses 3 and 4 are made in the housing, in which two electric heaters 5 and 6 are located, made of metal with a positive coefficient of resistance and interconnected in parallel. A thermal switch 8 is included in the circuit 7 of the electric heater 6. The temperature control element 2 is connected via heat transfer to the electric heater g 5 and 6 using the heat sink element 9, which in turn is connected to the housing 1. The device is turned on by means of a switch 10 that connects it to the battery eleven.

Устройство работает следующим образом. 5The device operates as follows. 5

Включателем 10 включают электронагреватель 5 в работу, и в последний поступает ток от аккумуляторной батареи 11. При этом электронагреватель 5'разогревается и тепловой поток от него воздействует на термовыключатель 8. Под действием тепла после некоторого периода времени термовыключатель 8 срабатывает (*’перекидывается’'), подсоединяя цепь 7 электронагревателя 6. Электро- ’5 нагреватель 6 начинает излучать тепло, которое обеспечивает быстрый прогрев терморегулирующего органаThe switch 10 turns on the electric heater 5, and the last one receives the current from the battery 11. At the same time, the electric heater 5 'heats up and the heat flux from it acts on the thermal switch 8. Under the action of heat, after a certain period of time, the thermal switch 8 is activated (*' switches over ' ), connecting the circuit 7 of the electric heater 6. The electric '5 heater 6 begins to radiate heat, which provides a quick heating of the thermostatic organ

2. Затем, после заданного интервала времени, терморегулирующий орган 2 26 нагревается и полностью открывает воздушную заслонку. Электронагреватель 5 обеспечивает нагревание терморегулирующего органа 2 для перемещения воздушной заслонки в заданный 25 период времени, когда температура окружающей среда ниже рабочей температуры термовыключатёля. Благодаря применению в электронагревателях 5 и 6 материала с положительным температурным коэффициентом достигнуто саморегулирование нагревателя во избежание его перегрева и для снижения потребляемой мощности до минимального уровня после того, как устройство обеспечило нужное смещение заслонки. В случае, если температура окружающей среда выше рабочей температуры термовыключателя 8, электронагреватели 5 и 6 включаются одновременно, обеспечивая тем самым более быстрое открытие заслонки.2. Then, after a predetermined time interval, the thermostatic control 2 26 heats up and completely opens the air damper. The electric heater 5 provides heating of the thermostatic organ 2 to move the air damper for a predetermined 25 period of time, when the ambient temperature is lower than the operating temperature of the thermal switch. Due to the use of a material with a positive temperature coefficient in electric heaters 5 and 6, the self-regulation of the heater was achieved in order to avoid its overheating and to reduce power consumption to a minimum level after the device provided the necessary displacement of the damper. If the ambient temperature is higher than the operating temperature of the thermal switch 8, the electric heaters 5 and 6 are turned on simultaneously, thereby providing a faster opening of the damper.

Применение предлагаемого устройства обеспечивает более быстрое управление воздушной заслонкой карбюратора, снижая время работы двигателя на обогащенной топливо-воздушной смеси при различных температурах окружающей среда.The application of the proposed device provides faster control of the air damper of the carburetor, reducing the engine operating time on the enriched fuel-air mixture at various ambient temperatures.

Claims (1)

Формула изобретенияClaim Устройство для управления воздушной заслонкой карбюратора двигателя внутреннего сгорания содержащее исполнительный терморегулирующий орган для перемещения заслонки, связанный по теплопередаче с теплоизлучающим элементом, выполненным в виде двух параллельно соединенных электронагревателей с положительным температурнымtкоэффициентом сопротивления, в цепь одного из которых включен термовыключатель, связанный по теплопередаче с окружающей средой, отличающееся тем, что, с целью повышения быстродействия в широком диапазоне температур окружающей среды, термовыключатель дополнительно связан по теплопередаче со вторым электронагревателем.Device for controlling choke carburetor of the internal combustion engine comprising an execution thermostatic expansion body for moving the valve associated heat transfer from the heat radiating element in the form of two parallel-connected electric heater with positive temperature t coefficient of resistance in the circuit one of which included thermal switch coupled for heat transfer with environment, characterized in that, in order to improve performance over a wide range of temperatures ur environment, the thermal switch is additionally connected by heat transfer to the second electric heater. 0 Источники информации, принятые во внимание При экспертизе0 Sources of information taken into account During examination 1. Выложенная заявка ФРГ № 2149253,, кл. 46 с 1/10, опублик. 1972.1. The laid-out application of Germany No. 2149253 ,, cl. 46 with 1/10, published. 1972. ВНИИПИVNIIIPI Тираж 590Circulation 590 Заказ 9834/83Order 9834/83 ПодписноеSubscription Филиал ППП Патент,Branch of PPP Patent, г. Ужгород, ул. Проектная, 4Uzhhorod, st. Project, 4
SU762326946A 1972-12-05 1976-03-02 Carburator air flap control device SU797606A4 (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)

Publication Number Publication Date
SU797606A4 true SU797606A4 (en) 1981-01-15

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ID=23211396

Family Applications (2)

Application Number Title Priority Date Filing Date
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

Family Applications Before (1)

Application Number Title Priority Date Filing Date
SU731987942A SU797605A3 (en) 1972-12-05 1973-12-04 Carburator air flap control device of internal combustion engine

Country Status (14)

Country Link
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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Also Published As

Publication number Publication date
HU175425B (en) 1980-07-28
CS209467B2 (en) 1981-12-31
YU281973A (en) 1981-11-13
FR2209047B1 (en) 1979-01-26
GB1447275A (en) 1976-08-25
FR2209047A1 (en) 1974-06-28
YU36405B (en) 1983-06-30
JPS4986725A (en) 1974-08-20
SE7614400L (en) 1976-12-21
IT994399B (en) 1975-10-20
RO90997B (en) 1987-02-28
SE405393B (en) 1978-12-04
DE2360454A1 (en) 1974-06-06
DE2360454C2 (en) 1988-09-01
PL89875B1 (en) 1976-12-31
RO90997A (en) 1987-02-27
DD111235A5 (en) 1975-02-05
SU797605A3 (en) 1981-01-15
GB1449807A (en) 1976-09-15
US3806854A (en) 1974-04-23

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