UST962010I4 - Variable venturi carburetor idle speed fuel control - Google Patents

Variable venturi carburetor idle speed fuel control Download PDF

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Publication number
UST962010I4
UST962010I4 US05/770,161 US77016177A UST962010I4 US T962010 I4 UST962010 I4 US T962010I4 US 77016177 A US77016177 A US 77016177A US T962010 I4 UST962010 I4 US T962010I4
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US
United States
Prior art keywords
venturi
fuel
idle speed
fuel control
speed fuel
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.)
Pending
Application number
US05/770,161
Inventor
Frank T. Newbury
Terence Inkpen
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 filed Critical
Priority to US05/770,161 priority Critical patent/UST962010I4/en
Application granted granted Critical
Publication of UST962010I4 publication Critical patent/UST962010I4/en
Pending legal-status Critical Current

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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
    • F02M3/00—Idling devices for carburettors
    • F02M3/08—Other details of idling devices
    • F02M3/12—Passageway systems
    • 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
    • F02M17/00—Carburettors having pertinent characteristics not provided for in, or of interest apart from, the apparatus of preceding main groups F02M1/00 - F02M15/00
    • F02M17/08—Carburettors having one or more fuel passages opening in a valve-seat surrounding combustion-air passage, the valve being opened by passing air
    • F02M17/09—Carburettors having one or more fuel passages opening in a valve-seat surrounding combustion-air passage, the valve being opened by passing air the valve being of an eccentrically mounted butterfly type
    • 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
    • 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
    • Y10S261/78—Sonic flow

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  • 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

A variable area venturi carburetor has a movable venturi wall with a fuel metering rod attached for cooperation with aligned main and auxiliary fuel jets located in an opening in the fixed venturi wall, a bypass passage connected between the jets siphoning or bleeding off fuel at closed throttle positions into a passage connected to the induction passage just below the closed position of the throttle valve, to prevent stalling of the engine by fuel flow into the main venturi at this time.
US05/770,161 1976-03-25 1977-02-18 Variable venturi carburetor idle speed fuel control Pending UST962010I4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/770,161 UST962010I4 (en) 1976-03-25 1977-02-18 Variable venturi carburetor idle speed fuel control

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US67047576A 1976-03-25 1976-03-25
US05/770,161 UST962010I4 (en) 1976-03-25 1977-02-18 Variable venturi carburetor idle speed fuel control

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US67047576A Continuation 1976-03-25 1976-03-25

Publications (1)

Publication Number Publication Date
UST962010I4 true UST962010I4 (en) 1977-09-06

Family

ID=27100324

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/770,161 Pending UST962010I4 (en) 1976-03-25 1977-02-18 Variable venturi carburetor idle speed fuel control

Country Status (1)

Country Link
US (1) UST962010I4 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980000470A1 (en) * 1978-08-19 1980-03-20 Ford Motor Co Down-draft carburetor
US4276239A (en) 1978-10-19 1981-06-30 Nissan Motor Company, Limited Variable air valve carburetor
US7707836B1 (en) 2009-01-21 2010-05-04 Gas Turbine Efficiency Sweden Ab Venturi cooling system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980000470A1 (en) * 1978-08-19 1980-03-20 Ford Motor Co Down-draft carburetor
US4404151A (en) 1978-08-19 1983-09-13 Ford Motor Company Down-draft carburetor
US4276239A (en) 1978-10-19 1981-06-30 Nissan Motor Company, Limited Variable air valve carburetor
US7707836B1 (en) 2009-01-21 2010-05-04 Gas Turbine Efficiency Sweden Ab Venturi cooling system
US7712314B1 (en) 2009-01-21 2010-05-11 Gas Turbine Efficiency Sweden Ab Venturi cooling system

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