EP0051992A3 - A carburettor and a method of carburation - Google Patents

A carburettor and a method of carburation Download PDF

Info

Publication number
EP0051992A3
EP0051992A3 EP81305276A EP81305276A EP0051992A3 EP 0051992 A3 EP0051992 A3 EP 0051992A3 EP 81305276 A EP81305276 A EP 81305276A EP 81305276 A EP81305276 A EP 81305276A EP 0051992 A3 EP0051992 A3 EP 0051992A3
Authority
EP
European Patent Office
Prior art keywords
flap
jet
throat
carburettor
inlet
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.)
Withdrawn
Application number
EP81305276A
Other languages
German (de)
French (fr)
Other versions
EP0051992A2 (en
Inventor
Ronald Frederick Bourne
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
Publication of EP0051992A2 publication Critical patent/EP0051992A2/en
Publication of EP0051992A3 publication Critical patent/EP0051992A3/en
Withdrawn legal-status Critical Current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
    • F02M9/106—Pneumatic or hydraulic 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
    • F02M11/00—Multi-stage carburettors, Register-type carburettors, i.e. with slidable or rotatable throttling valves in which a plurality of fuel nozzles, other than only an idling nozzle and a main one, are sequentially exposed to air stream by throttling valve
    • F02M11/02—Multi-stage carburettors, Register-type carburettors, i.e. with slidable or rotatable throttling valves in which a plurality of fuel nozzles, other than only an idling nozzle and a main one, are sequentially exposed to air stream by throttling valve with throttling valve, e.g. of flap or butterfly type, in a later stage opening automatically
    • 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
    • F02M13/00—Arrangements of two or more separate carburettors; Carburettors using more than one fuel
    • F02M13/02—Separate carburettors
    • F02M13/04—Separate carburettors structurally united
    • F02M13/046—Separate carburettors structurally united arranged in parallel, e.g. initial and main carburettor
    • 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
    • F02M29/00—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture
    • F02M29/04—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like
    • F02M29/06—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like generating whirling motion of mixture

Abstract

The invention provides a carburettor for an internal com­ bustion engine, comprising an upper plate element, a lower plate element and a side wall structure which spaces the plate elements from one another to define a mixing chamber within its surround. A tangential inlet to the chamber is defined in the side wall structure while a central outlet from the chamber is provided so that fluid entering the inlet follows a vortical path en route to the outlet. In a preferred arrangement the inlet is provided with a variable throat which includes a hinged flap adapted automatically to open the throat in proportion to air flow therethrough so that velocity through the throat remains substantially constant until the flap is fully open. A fuel jet is disposed a short distance downstream from the free end of the flap so that with the flap partially open, the jet is subjected to a constant pressure differential and in order to compensate for increasing airflow, a number of jets are provided succes­ sively upstream from the first jet. Once the flap is fully open, in­ creased air flow results in an increased pressure differential over the jets so that the air fuel ratio remains substantially con­ stant. A feature of the invention is that during low engine speeds, for example, during starting and idling, the air velocity is sufficiently high to effect vaporisation of liquid fuel.While the carburettor is of extremely simple construction, the mixing chamber ensures a high degree of vaporisation of liquid fuel without the application of heat or dependancy upon a manifold for the internal combustion engine.
EP81305276A 1980-11-07 1981-11-06 A carburettor and a method of carburation Withdrawn EP0051992A3 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
ZA806891 1980-11-07
ZA806891 1980-11-07
ZA81702 1981-02-02
ZA810702 1981-02-03
ZA813072 1981-05-08
ZA813072 1981-05-08
ZA816155 1981-09-04
ZA816155 1981-09-04

Publications (2)

Publication Number Publication Date
EP0051992A2 EP0051992A2 (en) 1982-05-19
EP0051992A3 true EP0051992A3 (en) 1982-12-01

Family

ID=27506084

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81305276A Withdrawn EP0051992A3 (en) 1980-11-07 1981-11-06 A carburettor and a method of carburation

Country Status (5)

Country Link
EP (1) EP0051992A3 (en)
AR (1) AR226135A1 (en)
AU (1) AU7690281A (en)
BR (1) BR8107219A (en)
ES (1) ES506912A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4313518A1 (en) * 1993-04-24 1994-11-03 Georg Prof Dipl Ing Guertler System for receiving coded television transmissions for payment
CN111046491B (en) * 2019-11-28 2023-07-25 中国船舶工业系统工程研究院 Method and device for estimating fuel consumption of diesel engine of large ship

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB413630A (en) * 1932-10-14 1934-07-19 Robert Watchorn Improvements in carburettors
US3336017A (en) * 1965-01-12 1967-08-15 Univ California Compound cyclonic flow inductor and improved carburetor embodying same
US3395899A (en) * 1965-09-28 1968-08-06 Univ California Carburetor
US4063905A (en) * 1976-12-22 1977-12-20 Borg-Warner Corporation Fuel mixer
US4072139A (en) * 1974-05-24 1978-02-07 Kuniaki Miyazawa Carburetor
EP0011360A1 (en) * 1978-09-25 1980-05-28 Automotive Engine Associates Fuel/air mixing device for engines

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB413630A (en) * 1932-10-14 1934-07-19 Robert Watchorn Improvements in carburettors
US3336017A (en) * 1965-01-12 1967-08-15 Univ California Compound cyclonic flow inductor and improved carburetor embodying same
US3395899A (en) * 1965-09-28 1968-08-06 Univ California Carburetor
US4072139A (en) * 1974-05-24 1978-02-07 Kuniaki Miyazawa Carburetor
US4063905A (en) * 1976-12-22 1977-12-20 Borg-Warner Corporation Fuel mixer
US4149562A (en) * 1976-12-22 1979-04-17 Borg-Warner Corporation Fuel mixer
EP0011360A1 (en) * 1978-09-25 1980-05-28 Automotive Engine Associates Fuel/air mixing device for engines

Also Published As

Publication number Publication date
AU7690281A (en) 1982-05-13
ES506912A1 (en) 1982-08-16
BR8107219A (en) 1982-07-27
EP0051992A2 (en) 1982-05-19
AR226135A1 (en) 1982-05-31

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19831109