GB1021509A - Improvements in and relating to carburettors - Google Patents

Improvements in and relating to carburettors

Info

Publication number
GB1021509A
GB1021509A GB3200862A GB3200862A GB1021509A GB 1021509 A GB1021509 A GB 1021509A GB 3200862 A GB3200862 A GB 3200862A GB 3200862 A GB3200862 A GB 3200862A GB 1021509 A GB1021509 A GB 1021509A
Authority
GB
United Kingdom
Prior art keywords
fuel
fuel flow
metering orifices
engine
metering
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
GB3200862A
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.)
HEINRICH KLAUS WUCHERER
Original Assignee
HEINRICH KLAUS WUCHERER
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 HEINRICH KLAUS WUCHERER filed Critical HEINRICH KLAUS WUCHERER
Priority to GB3200862A priority Critical patent/GB1021509A/en
Publication of GB1021509A publication Critical patent/GB1021509A/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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/16—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of continuously or intermittently operated injectors
    • F02M69/18—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of continuously or intermittently operated injectors the means being metering valves throttling fuel passages to injectors or by-pass valves throttling overflow passages, the metering valves being actuated by a device responsive to the engine working parameters, e.g. engine load, speed, temperature or quantity of air
    • F02M69/20—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of continuously or intermittently operated injectors the means being metering valves throttling fuel passages to injectors or by-pass valves throttling overflow passages, the metering valves being actuated by a device responsive to the engine working parameters, e.g. engine load, speed, temperature or quantity of air the device being a servo-motor, e.g. using engine intake air pressure or vacuum
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/30—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines
    • F02M69/36—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines having an enrichment mechanism modifying fuel flow to injectors, e.g. by acting on the fuel metering device or on the valves throttling fuel passages to injection nozzles or overflow passages
    • F02M69/38—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines having an enrichment mechanism modifying fuel flow to injectors, e.g. by acting on the fuel metering device or on the valves throttling fuel passages to injection nozzles or overflow passages using fuel pressure, e.g. by varying fuel pressure in the control chambers of the fuel metering device
    • F02M69/383—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines having an enrichment mechanism modifying fuel flow to injectors, e.g. by acting on the fuel metering device or on the valves throttling fuel passages to injection nozzles or overflow passages using fuel pressure, e.g. by varying fuel pressure in the control chambers of the fuel metering device the fuel passing through different passages to injectors or to a drain, the pressure of fuel acting on valves to close or open selectively these passages

Landscapes

  • 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

1,021,509. Carburetters. H. K. WUCHERER. Aug. 21, 1962, No. 32008/62. Heading F1B. An injection carburetter comprises an air path and a fuel flow passage, at least two fuel metering orifices 10, 14 arranged in series in the fuel flow passage and a corresponding number of fuel metering valves 13, 15 which are controlled by fuel pressure differentials across the fuel metering orifices and by selected air pressures in the air path, whereby in the lower engine load range only one of the valves 15 is effective for controlling the fuel flow through the fuel metering orifices while the other metering valve 13 is opened responsive only to predetermined pressure differentials created at higher engine loads to permit an additional fuel flow, the last mentioned valve then controlling through one of the metering orifices the total fuel flow in the fuel passage. In a modification the fuel is distributed to the individual engine cylinders or groups of cylinders according to Fig. 1 (not shown), the air passes through a larger venturi 1 and a smaller venturi 2 and at higher load also through a throttle controlled by-pass 6 to the driver actuated butterfly valve 5 and then to the engine.
GB3200862A 1962-08-21 1962-08-21 Improvements in and relating to carburettors Expired GB1021509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3200862A GB1021509A (en) 1962-08-21 1962-08-21 Improvements in and relating to carburettors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3200862A GB1021509A (en) 1962-08-21 1962-08-21 Improvements in and relating to carburettors

Publications (1)

Publication Number Publication Date
GB1021509A true GB1021509A (en) 1966-03-02

Family

ID=10331652

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3200862A Expired GB1021509A (en) 1962-08-21 1962-08-21 Improvements in and relating to carburettors

Country Status (1)

Country Link
GB (1) GB1021509A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0396813A1 (en) * 1989-05-12 1990-11-14 Mikuni Kogyo Kabushiki Kaisha Fuel injection device for injection carburetors
EP0399065A1 (en) * 1989-05-22 1990-11-28 Mikuni Kogyo Kabushiki Kaisha Fuel injection device for injection carburetors
EP0422270A1 (en) * 1989-10-10 1991-04-17 Mikuni Kogyo Kabushiki Kaisha Air-fuel ratio control device for injection carburetors
EP0424565A1 (en) * 1989-10-25 1991-05-02 Mikuni Kogyo Kabushiki Kaisha Air-fuel ratio control device for injection carburetors

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0396813A1 (en) * 1989-05-12 1990-11-14 Mikuni Kogyo Kabushiki Kaisha Fuel injection device for injection carburetors
EP0399065A1 (en) * 1989-05-22 1990-11-28 Mikuni Kogyo Kabushiki Kaisha Fuel injection device for injection carburetors
EP0422270A1 (en) * 1989-10-10 1991-04-17 Mikuni Kogyo Kabushiki Kaisha Air-fuel ratio control device for injection carburetors
EP0424565A1 (en) * 1989-10-25 1991-05-02 Mikuni Kogyo Kabushiki Kaisha Air-fuel ratio control device for injection carburetors

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