FR2286286A1 - Carburettor for IC engine - has pressure equalising passage with valve controlled by exhaust gas composition detector - Google Patents

Carburettor for IC engine - has pressure equalising passage with valve controlled by exhaust gas composition detector

Info

Publication number
FR2286286A1
FR2286286A1 FR7432607A FR7432607A FR2286286A1 FR 2286286 A1 FR2286286 A1 FR 2286286A1 FR 7432607 A FR7432607 A FR 7432607A FR 7432607 A FR7432607 A FR 7432607A FR 2286286 A1 FR2286286 A1 FR 2286286A1
Authority
FR
France
Prior art keywords
passage
float chamber
engine
carburettor
exhaust gas
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.)
Granted
Application number
FR7432607A
Other languages
French (fr)
Other versions
FR2286286B1 (en
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 FR7432607A priority Critical patent/FR2286286A1/en
Publication of FR2286286A1 publication Critical patent/FR2286286A1/en
Application granted granted Critical
Publication of FR2286286B1 publication Critical patent/FR2286286B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/0015—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for using exhaust gas sensors
    • F02D35/0046—Controlling fuel supply
    • F02D35/0053—Controlling fuel supply by means of a 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
    • F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
    • F02M7/10—Other installations, without moving parts, for influencing fuel/air ratio, e.g. electrical means
    • F02M7/11—Altering float-chamber pressure

Abstract

Fuel flows from the float chamber (5) to a jet (3) in the throat of a restricted orifice (2a) in the main air passage. A passage (8) connects the air space of the float chamber with atmospheric pressure at the carburetor inlet and a further passage (7) connects the air space of the float chamber with the throat of the venturi where there is a reduced pressure. A solenoid operated valve (10) in the first passage is controlled through an appropriate electric circuit (13) from a detector (11) in the engine exhaust (12) which responds to constituents which depend on the richness of the fuel mixture. When the valve closes it reduces the pressure in the float chamber and reduces the flow of fuel for a given flow of air.
FR7432607A 1974-09-27 1974-09-27 Carburettor for IC engine - has pressure equalising passage with valve controlled by exhaust gas composition detector Granted FR2286286A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7432607A FR2286286A1 (en) 1974-09-27 1974-09-27 Carburettor for IC engine - has pressure equalising passage with valve controlled by exhaust gas composition detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7432607A FR2286286A1 (en) 1974-09-27 1974-09-27 Carburettor for IC engine - has pressure equalising passage with valve controlled by exhaust gas composition detector

Publications (2)

Publication Number Publication Date
FR2286286A1 true FR2286286A1 (en) 1976-04-23
FR2286286B1 FR2286286B1 (en) 1976-12-31

Family

ID=9143504

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7432607A Granted FR2286286A1 (en) 1974-09-27 1974-09-27 Carburettor for IC engine - has pressure equalising passage with valve controlled by exhaust gas composition detector

Country Status (1)

Country Link
FR (1) FR2286286A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2924054A1 (en) * 1979-06-15 1980-12-18 Pierburg Gmbh & Co Kg Carburettor for internal combustion engine - has air passages to vary float chamber pressure to adjust mixture strength

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR873657A (en) * 1938-11-07 1942-07-16 Carburetor-diffuser with float chamber adjustment
FR2163243A5 (en) * 1972-04-22 1973-07-20 Bosch
DE2354313A1 (en) * 1972-11-01 1974-05-09 Hitachi Ltd MIXING RATIO CONTROL DEVICE FOR COMBUSTION MACHINERY

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR873657A (en) * 1938-11-07 1942-07-16 Carburetor-diffuser with float chamber adjustment
FR2163243A5 (en) * 1972-04-22 1973-07-20 Bosch
DE2354313A1 (en) * 1972-11-01 1974-05-09 Hitachi Ltd MIXING RATIO CONTROL DEVICE FOR COMBUSTION MACHINERY

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2924054A1 (en) * 1979-06-15 1980-12-18 Pierburg Gmbh & Co Kg Carburettor for internal combustion engine - has air passages to vary float chamber pressure to adjust mixture strength

Also Published As

Publication number Publication date
FR2286286B1 (en) 1976-12-31

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Legal Events

Date Code Title Description
ST Notification of lapse
TP Transmission of property