GB718381A - Improvements in or relating to carburettors - Google Patents

Improvements in or relating to carburettors

Info

Publication number
GB718381A
GB718381A GB2430251A GB2430251A GB718381A GB 718381 A GB718381 A GB 718381A GB 2430251 A GB2430251 A GB 2430251A GB 2430251 A GB2430251 A GB 2430251A GB 718381 A GB718381 A GB 718381A
Authority
GB
United Kingdom
Prior art keywords
restrictions
piston
throttle
engine
vacuum chamber
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
GB2430251A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2430251A priority Critical patent/GB718381A/en
Publication of GB718381A publication Critical patent/GB718381A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D9/00Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D2700/00Mechanical control of speed or power of a single cylinder piston engine
    • F02D2700/02Controlling by changing the air or fuel supply
    • F02D2700/0217Controlling by changing the air or fuel supply for mixture compressing engines using liquid fuel
    • F02D2700/0261Control of the fuel supply
    • F02D2700/0264Control of the fuel supply for engines with a fuel jet working with depression

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)

Abstract

718,381. Spray carburetters. WILTSHIRE, A. S. Oct. 20, 1952 [Oct. 18, 1951], No. 24302/51. Class 7(3) In a carburetter in which a variable choke aperture is controlled by a piston working in a vacuum chamber, the vacuum chamber being connected by a duct to the inlet passage at a point on the side of the choke aperture nearer to the engine and between the choke aperture and the mixture control throttle and the piston also controlling a needle for varying the area of the fuel jet, a further passage is provided communicating with the vacuum chamber and connecting or adapted to connect it to the inlet passage on the side of the throttle nearer to the engine whereby a pressure drop across the throttle may be utilized to modify the relative pressure in the vacuum chamber and thus, the controlling effect of the piston. As shown, a sliding throttle valve 15 and attached fuel control needle valve 16 are operated by engine suction which acts on the upper surface of the piston 5. The engine suction is transmitted to the space 7 through conduits 9, 11 which lead to opposite sides of a butterfly valve 3. Restrictions 10, 12 may be sharp-edged as shown or Venturi shaped. One of the restrictions may be omitted. Alternatively, the restrictions may be adjustable. Screw-controlled needle or conical valves may be employed. The restrictions may be formed in screwthreaded inserts. This enables the carburetter setting to be altered for different engine requirements by substituting inserts with different restrictions. The restoring force on the piston may be provided by its own weight and/or by a spring. The passage 11 may be connected to the inlet passage at any convenient point between the throttle and the combustion chambers. Specification 510,753 is referred to.
GB2430251A 1951-10-18 1951-10-18 Improvements in or relating to carburettors Expired GB718381A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2430251A GB718381A (en) 1951-10-18 1951-10-18 Improvements in or relating to carburettors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2430251A GB718381A (en) 1951-10-18 1951-10-18 Improvements in or relating to carburettors

Publications (1)

Publication Number Publication Date
GB718381A true GB718381A (en) 1954-11-10

Family

ID=10209541

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2430251A Expired GB718381A (en) 1951-10-18 1951-10-18 Improvements in or relating to carburettors

Country Status (1)

Country Link
GB (1) GB718381A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3272487A (en) * 1963-04-29 1966-09-13 Acf Ind Inc Carburetor
US3278173A (en) * 1963-04-29 1966-10-11 Acf Ind Inc Carburetor
US3278171A (en) * 1963-10-28 1966-10-11 Acf Ind Inc Carburetor
US3307839A (en) * 1965-12-01 1967-03-07 Acf Ind Inc Carburetor having a vacuum regulated metering rod
US3336014A (en) * 1965-03-02 1967-08-15 Rubery Owen & Company Ltd Fluid flow jets, particularly for carburetters
US3493217A (en) * 1966-12-16 1970-02-03 John Dashwood Farley Carburettors
US4117046A (en) * 1977-07-07 1978-09-26 Toyota Jidosha Kogyo Kabushiki Kaisha Variable-venturi carburetor
GB2000230A (en) * 1977-06-14 1979-01-04 Carson T Improvements relating to the control of fuel metering in constant vacuum carburettors for internal combustion engines
US4276239A (en) * 1978-10-19 1981-06-30 Nissan Motor Company, Limited Variable air valve carburetor
WO1981002913A1 (en) * 1980-03-31 1981-10-15 M Showalter Analog carburetor
US4318868A (en) * 1980-03-31 1982-03-09 Automotive Engine Associates Analog carburetor
GB2119021A (en) * 1982-04-22 1983-11-09 Stephen Read Carburettor control in turbo charged engines

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3278173A (en) * 1963-04-29 1966-10-11 Acf Ind Inc Carburetor
US3272487A (en) * 1963-04-29 1966-09-13 Acf Ind Inc Carburetor
US3278171A (en) * 1963-10-28 1966-10-11 Acf Ind Inc Carburetor
US3336014A (en) * 1965-03-02 1967-08-15 Rubery Owen & Company Ltd Fluid flow jets, particularly for carburetters
US3307839A (en) * 1965-12-01 1967-03-07 Acf Ind Inc Carburetor having a vacuum regulated metering rod
US3493217A (en) * 1966-12-16 1970-02-03 John Dashwood Farley Carburettors
GB2000230B (en) * 1977-06-14 1982-02-03 Carson T Improvements relating to the control of fuel mixtures for internal combustion engines
GB2000230A (en) * 1977-06-14 1979-01-04 Carson T Improvements relating to the control of fuel metering in constant vacuum carburettors for internal combustion engines
US4117046A (en) * 1977-07-07 1978-09-26 Toyota Jidosha Kogyo Kabushiki Kaisha Variable-venturi carburetor
US4276239A (en) * 1978-10-19 1981-06-30 Nissan Motor Company, Limited Variable air valve carburetor
WO1981002913A1 (en) * 1980-03-31 1981-10-15 M Showalter Analog carburetor
US4318868A (en) * 1980-03-31 1982-03-09 Automotive Engine Associates Analog carburetor
GB2119021A (en) * 1982-04-22 1983-11-09 Stephen Read Carburettor control in turbo charged engines

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