GB1475009A - Carburetor having cold engine air/fuel mixture enrichment apparatus - Google Patents

Carburetor having cold engine air/fuel mixture enrichment apparatus

Info

Publication number
GB1475009A
GB1475009A GB5530574A GB5530574A GB1475009A GB 1475009 A GB1475009 A GB 1475009A GB 5530574 A GB5530574 A GB 5530574A GB 5530574 A GB5530574 A GB 5530574A GB 1475009 A GB1475009 A GB 1475009A
Authority
GB
United Kingdom
Prior art keywords
lever
cam
plunger
series
engine
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
GB5530574A
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.)
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Motor Co Ltd
Ford Motor Co
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 Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Motor Co Ltd
Publication of GB1475009A publication Critical patent/GB1475009A/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
    • F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
    • F02M1/04—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling being auxiliary carburetting apparatus able to be put into, and out of, operation, e.g. having automatically-operated disc valves
    • F02M1/046—Auxiliary carburetting apparatus controlled by piston valves
    • 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
    • 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
    • F02M9/00—Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type; Carburettors having fuel-air mixing chambers of variable shape or position
    • F02M9/10—Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type; Carburettors having fuel-air mixing chambers of variable shape or position having valves, or like controls, of elastic-wall type for controlling the passage, or for varying cross-sectional area, of fuel-air mixing chambers or of the entry passage
    • F02M9/106—Pneumatic or hydraulic control

Landscapes

  • 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 The Air-Fuel Ratio Of Carburetors (AREA)

Abstract

1475009 Extra fuel for starting and warming up FORD MOTOR CO Ltd 20 Dec 1974 [4 Jan 1974] 55305/74 Heading F1H The subject matter of the present Specification is the same as that of Specification 1475008 except for the means for providing extra fuel for starting and warming up, with which the claims of the present invention are concerned. In a carburetter, a fast idle cam 236, Figs. 12 and 14, is provided with two series of steps 250, 252, the former series being used except during starting and the latter being used only during starting to ensure that throttle plate 25, Fig. 12, which co-operates with the cam via lever 272 rigid with throttle shaft 24, screw 268, end 264 of lever 266 and plunger 254, is wider open than at the same temperature during running of the engine. The cam 236 is movable axially by being mounted on a sleeve 238 that is axially slidable on sleeve 220 in response to engine intake manifold vacuum applied to a chamber 310 to bring the series of steps 250 into line with the plunger 254 when the engine has started. The effect of vacuum in chamber 310 is transmitted to the sleeve 238 by plunger 314 and lever 288, which is moved from its broken line position to its full line position. As the engine warms up, bi-metal spring 322 rotates lever 228 which allows the fast idle cam to be rotated by gravity in an anticlockwise direction in Fig. 12 as leg portion 230 of lever 228 moves anti-clockwise, so that the plunger 254 no longer engages the series of steps on the cam and the throttle plate is able to reach its most nearly closed position. The lever 228 also rotates shaft 218 and thereby lever 216 to lift needle valve (72) and lower needle valve (140) Fig. 6 (not shown) which act as in Specification 1475008.
GB5530574A 1974-01-04 1974-12-20 Carburetor having cold engine air/fuel mixture enrichment apparatus Expired GB1475009A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US430824A US3929942A (en) 1974-01-04 1974-01-04 Carburetor cold engine air/fuel mixture enrichment apparatus

Publications (1)

Publication Number Publication Date
GB1475009A true GB1475009A (en) 1977-06-01

Family

ID=23709205

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5530574A Expired GB1475009A (en) 1974-01-04 1974-12-20 Carburetor having cold engine air/fuel mixture enrichment apparatus

Country Status (5)

Country Link
US (1) US3929942A (en)
JP (1) JPS5810575B2 (en)
CA (1) CA1020826A (en)
DE (1) DE2461276A1 (en)
GB (1) GB1475009A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2807888C3 (en) * 1978-02-24 1982-02-04 Pierburg Gmbh & Co Kg, 4040 Neuss Carburettors for internal combustion engines
US4276240A (en) * 1979-12-21 1981-06-30 Ford Motor Company Carburetor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2102428A (en) * 1932-12-13 1937-12-14 Chrysler Corp Internal combustion engine fuel system
US2747848A (en) * 1952-06-26 1956-05-29 Gen Motors Corp Carburetor
US3695591A (en) * 1970-03-23 1972-10-03 Zenith Carburetter Co Ltd Automatic cold starting devices for internal combustion engines
JPS5012541B2 (en) * 1972-12-08 1975-05-13

Also Published As

Publication number Publication date
JPS5810575B2 (en) 1983-02-26
JPS5097739A (en) 1975-08-04
US3929942A (en) 1975-12-30
CA1020826A (en) 1977-11-15
AU7645874A (en) 1976-06-17
DE2461276A1 (en) 1975-07-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee