GB1279279A - Means for controlling the emission of unburnt hydrocarbons from the engine of a motor vehicle - Google Patents

Means for controlling the emission of unburnt hydrocarbons from the engine of a motor vehicle

Info

Publication number
GB1279279A
GB1279279A GB43011/69A GB4301169A GB1279279A GB 1279279 A GB1279279 A GB 1279279A GB 43011/69 A GB43011/69 A GB 43011/69A GB 4301169 A GB4301169 A GB 4301169A GB 1279279 A GB1279279 A GB 1279279A
Authority
GB
United Kingdom
Prior art keywords
throttle valve
take
valve
abutment
lever
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB43011/69A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Publication of GB1279279A publication Critical patent/GB1279279A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/05—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means
    • F02P5/10—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means dependent on fluid pressure in engine, e.g. combustion-air pressure
    • F02P5/103—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means dependent on fluid pressure in engine, e.g. combustion-air pressure dependent on the combustion-air pressure in engine
    • F02P5/106—Combustion-air pressure devices combined with other specific conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0002—Controlling intake air
    • F02D41/0005—Controlling intake air during deceleration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/12—Introducing corrections for particular operating conditions for deceleration
    • 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
    • F02M3/00—Idling devices for carburettors
    • F02M3/06—Increasing idling speed
    • F02M3/07—Increasing idling speed by positioning the throttle flap stop, or by changing the fuel flow cross-sectional area, by electrical, electromechanical or electropneumatic means, according to engine speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • 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
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

1279279 Carburetters TOYOTA JIDOSHA KOGYO K K 28 Aug 1969 [3 Sept 1968] 43011/69 Heading F1B The discharge of unburnt hydrocarbons from a vehicle engine during deceleration is reduced by means of an abutment 14 which, when the vehicle speed is above a predetermined value, is moved into the path of a lever 6 connected to the throttle valve 4 to prevent the throttle valve from reaching its idling position. The throttle valve is thus held slightly more open than under idling conditions to permit a greater intake of air. The vehicle speed is sensed by a generator 21 driven by the speedometer drive cable 22 and generating an A. C. voltage proportional to the speed. The A, C, voltage is supplied to a circuit 23 wherein it is rectified and applied, via a Schmitt trigger, to operate a relay 24 when the vehicle speed exceeds a predetermined value. The relay controls a solenoid 27 to move a valve 30, to the position shown, in which the space 20 below a diaphragm 19 is vented to atmosphere via the air cleaner 35. This allows a spring 15 to move a lever 12 carrying the abutment 14 into the position shown. In addition, the valve 30 connect a vacuum take-off 11 to a device 39 for retarding the ignition timing of the distributor 37. A device 38 for advancing the ignition timing is permanently connected to a vacuum take-off 10. At large openings of the throttle valve 4, the take-off 10 is located downstream of the throttle valve, while the take-off 11 is located upstream of it. A high vacuum is then transmitted to the device 38 to advance the ignition timing. When the engine is decelerating with the throttle valve closed to the extent permitted by the abutment 14, the take-off 10 is then upstream of the throttle valve while the take-off is then downstream of it. A high vacuum is then transmitted to the device 39 to retard the ignition timing so as to increase the engine braking effect. At vehicle speeds below the predetermined value, the valve 30 occupies its alternative position, in which it connects the space 20 to the takeoff 11. When the throttle valve 4 is then closed sufficiently to bring the take-off 11 to a downstream position relative to the throttle valve, a high vacuum is communicated to the space 20 to cause the diaphragm 19 to lift the abutment 14 clear of the path of the lever 6 so that the throttle valve can close to the idling position. In addition, the valve 30 renders the device 39 inoperative by venting it to atmosphere via the air cleaner 35. The vacuum control of the ignition timing is then effected by the device 38 only. The diaphragm 18 may be replaced by a bellows or a plunger. The lever 12 may be operated through the intermediary of a solenoid controlled by a vacuum-operated switch. The lever 12 may be omitted, the abutment (40), Fig. 3 (not shown), then being carried directly by the spindle 17.
GB43011/69A 1968-09-03 1969-08-28 Means for controlling the emission of unburnt hydrocarbons from the engine of a motor vehicle Expired GB1279279A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP43062901A JPS4938219B1 (en) 1968-09-03 1968-09-03

Publications (1)

Publication Number Publication Date
GB1279279A true GB1279279A (en) 1972-06-28

Family

ID=13213602

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43011/69A Expired GB1279279A (en) 1968-09-03 1969-08-28 Means for controlling the emission of unburnt hydrocarbons from the engine of a motor vehicle

Country Status (4)

Country Link
US (1) US3603298A (en)
JP (1) JPS4938219B1 (en)
FR (1) FR2017292A1 (en)
GB (1) GB1279279A (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721221A (en) * 1969-04-09 1973-03-20 Nippon Denso Co Internal combustion engine exhaust gas controlling device
US3718126A (en) * 1969-07-21 1973-02-27 Toyota Motor Co Ltd Ignition timing regulating device for internal combustion engines
JPS5028563B1 (en) * 1969-12-29 1975-09-17
JPS502771B1 (en) * 1970-09-17 1975-01-29
US3871341A (en) * 1970-12-21 1975-03-18 Optimizer Control Corp Speed controlled ignition retarder
JPS501648B1 (en) * 1971-02-24 1975-01-20
US3788290A (en) * 1971-08-04 1974-01-29 Chrysler Corp Distributor actuator unit with solenoid advance
US3742785A (en) * 1971-08-11 1973-07-03 Gen Motors Corp Ignition timing and throttle position control
DE2202786C3 (en) * 1972-01-21 1980-07-31 Robert Bosch Gmbh, 7000 Stuttgart Device for adjusting the ignition point
US3824972A (en) * 1972-08-11 1974-07-23 Gen Motors Corp Ignition spark vacuum advance system
US3948231A (en) * 1974-01-02 1976-04-06 Smith Norris E Power and deceleration governor for automotive engines
US3939810A (en) * 1974-04-12 1976-02-24 Brooks Walker Engine speed responsive means for changing the position of a vacuum spark advance limiter stop
JPS5312918Y2 (en) * 1974-07-19 1978-04-07
JPS5314825Y2 (en) * 1974-12-24 1978-04-19
JPS5183533U (en) * 1974-12-25 1976-07-05
US4149499A (en) * 1974-12-26 1979-04-17 Honda Giken Kogyo Kabushiki Kaisha Vacuum controlled ignition timing apparatus for internal combustion engine
JPS5244747Y2 (en) * 1975-08-11 1977-10-12
US4140092A (en) * 1976-04-16 1979-02-20 Air Quality Products, Inc. Control system for internal combustion engine
JPS52164515U (en) * 1976-06-07 1977-12-13
US4161928A (en) * 1976-08-30 1979-07-24 Chrysler Corporation Throttle body assembly
DE2649473A1 (en) * 1976-10-29 1978-05-11 Volkswagenwerk Ag CONTROL DEVICE FOR CONTROLLING A VACUUM ACTUATED DEVICE FOR LIMITING THE CLOSING OF A CARBURETTOR THROTTLE FLAP
IT1089218B (en) * 1977-12-22 1985-06-18 Alfa Romeo Spa AUTOMATIC SPEED REGULATOR OF A COMBUSTION ENGINE
US4237833A (en) * 1979-04-16 1980-12-09 General Motors Corporation Vehicle throttle stop control apparatus
JPS6228674Y2 (en) * 1979-05-30 1987-07-23
DE102011103125B4 (en) * 2011-05-25 2022-03-03 Andreas Stihl Ag & Co. Kg Method of operating an implement

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2988074A (en) * 1960-04-22 1961-06-13 Gen Motors Corp Engine device for reducing unburned hydrocarbons
US3027884A (en) * 1960-11-18 1962-04-03 Gen Motors Corp Engine device for reducing unburned hydrocarbons
US3252450A (en) * 1963-10-18 1966-05-24 Gen Motors Corp Mechanism for reducing unburned hydrocarbon emission
US3289659A (en) * 1964-03-16 1966-12-06 Standard Products Co Engine control device
US3272191A (en) * 1965-03-04 1966-09-13 Walker Brooks Engine spark control for reducing smog
US3479998A (en) * 1967-03-27 1969-11-25 Brooks Walker Spark control
US3486491A (en) * 1968-06-20 1969-12-30 Acf Ind Inc Automotive deceleration device

Also Published As

Publication number Publication date
DE1944677A1 (en) 1970-04-09
DE1944677B2 (en) 1975-07-24
US3603298A (en) 1971-09-07
JPS4938219B1 (en) 1974-10-16
FR2017292A1 (en) 1970-05-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee