GB1513884A - Liquid fuel and air mixing and modulating device - Google Patents

Liquid fuel and air mixing and modulating device

Info

Publication number
GB1513884A
GB1513884A GB25613/75A GB2561375A GB1513884A GB 1513884 A GB1513884 A GB 1513884A GB 25613/75 A GB25613/75 A GB 25613/75A GB 2561375 A GB2561375 A GB 2561375A GB 1513884 A GB1513884 A GB 1513884A
Authority
GB
United Kingdom
Prior art keywords
shaft
rotation
area
keyed
effected
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
GB25613/75A
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.)
Dresser Investments
Dresser Inventments NV
Original Assignee
Dresser Investments
Dresser Inventments NV
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 Dresser Investments, Dresser Inventments NV filed Critical Dresser Investments
Publication of GB1513884A publication Critical patent/GB1513884A/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
    • 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
    • F02M9/103—Mechanical control
    • 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
    • F02M19/00—Details, component parts, or accessories of carburettors, not provided for in, or of interest apart from, the apparatus of groups F02M1/00 - F02M17/00
    • F02M19/08—Venturis
    • F02M19/081—Shape of venturis or cross-section of mixture passages being adjustable
    • 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
    • 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
    • Y10S261/56—Variable venturi
    • 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

Abstract

1513884 Adjustable chokes for IC engines DRESSER INVESTMENTS NV 16 June 1975 [18 July 1974] 25613/75 Heading F1B A Venturi flow passage supplying fuel/air mixture to an I.C. engine comprises pivoted members 20, 22 which are rotated simultaneously to maintain the area ratio between the exit and throat within a predetermined range. The exit area Aep varies with rotation about shaft 34 of member 20 and the throat area At varies with rotation about shaft 36 of member 22, the area ratio being given by:- where L, H o , α and # are defined in Fig. 2. In one embodiment, Fig. 3, the simultaneous rotation is effected by throttle valve linkage via a cam 50 keyed to shaft 36 which engages a spring- biased follower 42 keyed to shaft 34. In another embodiment, Fig. 6, the rotation is effected by a pantograph mechanism 62 connected to the throttle valve linkage via a shaft 56.
GB25613/75A 1974-07-18 1975-06-16 Liquid fuel and air mixing and modulating device Expired GB1513884A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US489671A US3911063A (en) 1974-07-18 1974-07-18 Variable throat venturi apparatus for mixing and modulating liquid fuel and intake air to an internal combustion engine

Publications (1)

Publication Number Publication Date
GB1513884A true GB1513884A (en) 1978-06-14

Family

ID=23944800

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25613/75A Expired GB1513884A (en) 1974-07-18 1975-06-16 Liquid fuel and air mixing and modulating device

Country Status (5)

Country Link
US (1) US3911063A (en)
BE (1) BE831475A (en)
CA (1) CA1028585A (en)
GB (1) GB1513884A (en)
IT (1) IT1040876B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5191423A (en) * 1975-02-07 1976-08-11
US5707560A (en) * 1996-08-12 1998-01-13 Dynojet Research, Inc. Constant velocity carburetor with variable venturi slide having bleed holes at an oblique angle and method of operation
US9316175B2 (en) * 2010-03-16 2016-04-19 Briggs & Stratton Corporation Variable venturi and zero droop vacuum assist
US8910616B2 (en) 2011-04-21 2014-12-16 Briggs & Stratton Corporation Carburetor system for outdoor power equipment

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1045613A (en) * 1911-07-29 1912-11-26 Harris C Roth Carbureter.
US1042606A (en) * 1912-01-26 1912-10-29 Harris C Roth Carbureter.
US1258153A (en) * 1915-12-06 1918-03-05 Multiune Carburetor Company Carbureter.
US1542415A (en) * 1921-02-09 1925-06-16 R & S Non Deflecting Valve Com Carburetor
US1555489A (en) * 1921-08-17 1925-09-29 Albert H Spencer Carburetor
US2672329A (en) * 1949-07-13 1954-03-16 Zarnack Werner Carburetor of combustion engines with automatic fuel regulation
US3069146A (en) * 1960-08-30 1962-12-18 Soroban Engineering Inc Variable venturi carburetor
FR2084292A5 (en) * 1970-03-06 1971-12-17 Dresser Ind

Also Published As

Publication number Publication date
IT1040876B (en) 1979-12-20
CA1028585A (en) 1978-03-28
US3911063A (en) 1975-10-07
BE831475A (en) 1975-11-17

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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