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GB1293772A - Methods and means for reducing the emission of pollution products by internal combustion engines provided with carburation means, during deceleration periods - Google Patents

Methods and means for reducing the emission of pollution products by internal combustion engines provided with carburation means, during deceleration periods

Info

Publication number
GB1293772A
GB1293772A GB61742/69A GB6174269A GB1293772A GB 1293772 A GB1293772 A GB 1293772A GB 61742/69 A GB61742/69 A GB 61742/69A GB 6174269 A GB6174269 A GB 6174269A GB 1293772 A GB1293772 A GB 1293772A
Authority
GB
United Kingdom
Prior art keywords
engine
valve
throttle valve
closed
idling
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
GB61742/69A
Inventor
Jean Baudry
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.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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 IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Publication of GB1293772A publication Critical patent/GB1293772A/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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M3/00—Idling devices for carburettors
    • F02M3/02—Preventing flow of idling fuel
    • F02M3/04—Preventing flow of idling fuel under conditions where engine is driven instead of driving, e.g. driven by vehicle running down hill
    • F02M3/043—Devices as described in F02M3/005, F02M3/041, F02M3/042, F02M3/045, F02M3/05 and F02M3/055 and also equipped with additional air
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/19—Degassers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

1293772 Spray carburetters; extra air valves INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 18 Dec 1969 [24 Dec 1968] 61742/69 Heading F1B In an I.C. engine having at least one cylinder and having a carburetter in which the throttle valve 5, Fig.1, closes the induction passage 1 completely during idling, the idling mixture being supplied to the engine through a by-pass passage 12, means are provided for reducing the emission of noxious constituents in the engine exhaust gases during engine deceleration with the throttle valve closed and the engine speed above a predetermined value, e.g. 800 r.p.m. The means, which may also be responsive to conditions of the clutch or gear-box of an associated vehicle comprises a valve 17 which during such decelerations closes the idling passage 12 and opens a passage 20 to allow the engine cylinder to receive air via an orifice (22), Figs.1A, 1B, 1C (not shown), positioned immediately upstream of the cylinder inlet valve. The valve 17 is moved to the position shown by an electrical coil 19 which is energized by a battery (24), Fig.2 (not shown), when a pair of series connected switches (i) and (R) are closed. The switch (i) is closed when the throttle valve 5 is closed, by a cam (29), Figs.3A, 3B (not shown), incorporated in the throttle valve actuating linkage. The switch (R) is closed when the voltage between the terminals of a dynamo (D) exceeds a predetermined value, or when the output voltage of a tachometric device (T), Fig. 5 (not shown), exceeds a predetermined value, the device (T) being connected with the contact breaker (A) of the engine ignition circuit so that its output voltage varies as a function of the breaking frequency of the contact breaker. Moreover, the primary winding (34) of the ignition coil can be isolated by a switch (37) operated electrically by a coil (38) connected in series with the switches (i and R) so that the engine ignition is switched off during the engine decelerations. The throttle valve actuating linkage incorporates a pin-and-slot lost-motion device (30, 31) whereby the valve 17 is caused to open momentarily before the throttle valve, and vice versa in the closing direction. The valve 17 may incorporate means for pre-setting the idling flow-rate, Fig.4 (not shown).
GB61742/69A 1968-12-24 1969-12-18 Methods and means for reducing the emission of pollution products by internal combustion engines provided with carburation means, during deceleration periods Expired GB1293772A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR180576 1968-12-24
NL7009169A NL7009169A (en) 1968-12-24 1970-06-23

Publications (1)

Publication Number Publication Date
GB1293772A true GB1293772A (en) 1972-10-25

Family

ID=26182412

Family Applications (1)

Application Number Title Priority Date Filing Date
GB61742/69A Expired GB1293772A (en) 1968-12-24 1969-12-18 Methods and means for reducing the emission of pollution products by internal combustion engines provided with carburation means, during deceleration periods

Country Status (5)

Country Link
US (1) US3688752A (en)
DE (1) DE1964766A1 (en)
FR (1) FR1602469A (en)
GB (1) GB1293772A (en)
NL (1) NL7009169A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2008672A (en) * 1977-11-14 1979-06-06 Yamaha Motor Co Ltd Controlling Internal Combustion Engines
FR2412718A1 (en) * 1977-12-26 1979-07-20 Yamaha Motor Co Ltd VEHICLE ENGINE CONTROL
US5165374A (en) * 1990-03-24 1992-11-24 Rover Group Limited Inlet arrangement for an internal combustion engine
US5564383A (en) * 1993-09-06 1996-10-15 Yamaha Hatsudoki Kabushiki Kaisha Tumble valve arrangement for engine
US5595156A (en) * 1994-07-20 1997-01-21 Yamaha Hatsudoki Kabushiki Kaisha Induction control system for multi-valve engine
US5671712A (en) * 1994-01-25 1997-09-30 Yamaha Hatsudoki Kabushiki Kaisha Induction system for engine
US5704330A (en) * 1994-06-15 1998-01-06 Yamaha Hatsudoki Kabushiki Kaisha Cylinder head arrangement for internal combustion engine
US5720255A (en) * 1994-02-14 1998-02-24 Yamaha Hatsudoki Kabushiki Kaisha Control valve for multi-valve engine
US5794587A (en) * 1994-06-14 1998-08-18 Yamaha Hatsudoki Kabushiki Kaisha Tumble valve for multi-valve engine
US5806484A (en) * 1994-08-31 1998-09-15 Yamaha Hatsudoki Kabushiki Kaisha Induction control system for engine

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906909A (en) * 1970-10-24 1975-09-23 Alfa Romeo Spa Internal combustion engine of the fuel injection type having means for reducing the emission of unburned products with the exhaust gases
DE2539097A1 (en) * 1975-09-03 1977-03-17 Bosch Gmbh Robert METHOD AND DEVICE FOR CONTROLLING THE FUEL-AIR MIXTURE IN A COMBUSTION ENGINE BY SUPPLYING ADDITIONAL AIR
US4138974A (en) * 1976-10-13 1979-02-13 Toyo Kogyo Co., Ltd. Air-fuel mixture intake system
JPS5830093Y2 (en) * 1977-11-21 1983-07-02 日産自動車株式会社 Internal combustion engine intake system
DE2817026C2 (en) * 1978-04-19 1983-07-07 Central'nyj naučno-issledovatel'skij avtomobil'nyj i avtomotornyj institut (NAMI), Moskva Idle fuel system in a carburetor for internal combustion engines
US4217313A (en) * 1978-04-21 1980-08-12 Dmitrievsky Anatoly V Device for reducing noxious emissions from carburetor internal combustion engines
JPS5936090B2 (en) * 1980-11-28 1984-09-01 スズキ株式会社 Internal combustion engine intake system
IT1146472B (en) * 1981-07-10 1986-11-12 Weber Spa CARBURETOR FOR INTERNAL COMBUSTION ENGINES WITH ELECTROMAGNETICALLY OPERATED PARTS SUITABLE FOR PLACING THE BUTTERFLY VALVE IN TWO SMALL OPENING POSITIONS
DE3901627C3 (en) * 1989-01-20 2000-06-29 Walbro Gmbh Carburetor with a device for idle adjustment
DE3929025A1 (en) * 1989-09-01 1991-03-14 Stihl Maschf Andreas Carburettor with independent idling system - has air volume regulating screw with tip projecting into nozzle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2386340A (en) * 1944-12-18 1945-10-09 George M Holley Decelerator
US2755786A (en) * 1954-10-25 1956-07-24 Frank F W Doering Electrical control for internal combustion engine neutralizers
US3374991A (en) * 1965-03-12 1968-03-26 Walker Brooks Carburetor

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2008672A (en) * 1977-11-14 1979-06-06 Yamaha Motor Co Ltd Controlling Internal Combustion Engines
FR2412718A1 (en) * 1977-12-26 1979-07-20 Yamaha Motor Co Ltd VEHICLE ENGINE CONTROL
US5165374A (en) * 1990-03-24 1992-11-24 Rover Group Limited Inlet arrangement for an internal combustion engine
US5564383A (en) * 1993-09-06 1996-10-15 Yamaha Hatsudoki Kabushiki Kaisha Tumble valve arrangement for engine
US5671712A (en) * 1994-01-25 1997-09-30 Yamaha Hatsudoki Kabushiki Kaisha Induction system for engine
US5720255A (en) * 1994-02-14 1998-02-24 Yamaha Hatsudoki Kabushiki Kaisha Control valve for multi-valve engine
US5794587A (en) * 1994-06-14 1998-08-18 Yamaha Hatsudoki Kabushiki Kaisha Tumble valve for multi-valve engine
US5704330A (en) * 1994-06-15 1998-01-06 Yamaha Hatsudoki Kabushiki Kaisha Cylinder head arrangement for internal combustion engine
US5595156A (en) * 1994-07-20 1997-01-21 Yamaha Hatsudoki Kabushiki Kaisha Induction control system for multi-valve engine
US5806484A (en) * 1994-08-31 1998-09-15 Yamaha Hatsudoki Kabushiki Kaisha Induction control system for engine

Also Published As

Publication number Publication date
DE1964766A1 (en) 1970-07-09
US3688752A (en) 1972-09-05
FR1602469A (en) 1970-11-30
NL7009169A (en) 1971-12-27

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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