GB2008675A - Fuel Injection Systems for I.C. Engines - Google Patents

Fuel Injection Systems for I.C. Engines

Info

Publication number
GB2008675A
GB2008675A GB7847103A GB7847103A GB2008675A GB 2008675 A GB2008675 A GB 2008675A GB 7847103 A GB7847103 A GB 7847103A GB 7847103 A GB7847103 A GB 7847103A GB 2008675 A GB2008675 A GB 2008675A
Authority
GB
United Kingdom
Prior art keywords
fuel
cylinder
injection pump
engine
valve
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Withdrawn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
GB7847103A
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.)
Ricardo PLC
Original Assignee
Ricardo and Co Engineers 1927 Ltd
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 Ricardo and Co Engineers 1927 Ltd filed Critical Ricardo and Co Engineers 1927 Ltd
Priority to GB7847103A priority Critical patent/GB2008675A/en
Publication of GB2008675A publication Critical patent/GB2008675A/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Withdrawn legal-status Critical Current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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
    • F02D1/02—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
    • F02D1/08—Transmission of control impulse to pump control, e.g. with power drive or power assistance
    • F02D1/10—Transmission of control impulse to pump control, e.g. with power drive or power assistance mechanical
    • 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
    • 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
    • F02M69/44—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for supplying extra fuel to the engine on sudden air throttle opening, e.g. at acceleration

Abstract

The quantity of fuel injected into the engine intake manifold is automatically regulated to match the quantity of air entering the engine air intake. A feed pump 16 delivers fuel at constant pressure via a flow control valve 19 to one end of the cylinder 21 of a hydraulic plunger, and the fuel injection pump 13 draws fuel from the same end of the cylinder. The plunger rod 26 of the cylinder is coupled to the stroke control member 14 of the injection pump. The valve 19 is coupled to an auxiliary butterfly valve 31, upstream of the main throttle valve 30, the valve 31 being controlled by an aneroid device 32, so that the fuel flow rate into the cylinder 21 is regulated in accordance with the mass air flow rate into the air intake, and the difference between the fuel flow rate into the cylinder 21 and the fuel demand by the injection pump moves the plunger piston 22 to regulate the stroke length of the injection pump 13 in the sense to reduce that difference to zero. Since the injection pump 13 is engine- driven, its overall fuel delivery rate is then controlled automatically in dependence on the air intake of the engine. Overriding controls (41 and 51), Fig.2 (not shown), may be provided for increasing the fuel delivery on cold starting and for acceleration. <IMAGE>
GB7847103A 1977-11-03 1978-12-04 Fuel Injection Systems for I.C. Engines Withdrawn GB2008675A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7847103A GB2008675A (en) 1977-11-03 1978-12-04 Fuel Injection Systems for I.C. Engines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4579177 1977-11-03
GB7847103A GB2008675A (en) 1977-11-03 1978-12-04 Fuel Injection Systems for I.C. Engines

Publications (1)

Publication Number Publication Date
GB2008675A true GB2008675A (en) 1979-06-06

Family

ID=26265670

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7847103A Withdrawn GB2008675A (en) 1977-11-03 1978-12-04 Fuel Injection Systems for I.C. Engines

Country Status (1)

Country Link
GB (1) GB2008675A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4284047A (en) * 1978-09-26 1981-08-18 Robert Bosch Gmbh Apparatus for controlling the air-fuel quantity ratio in internal combustion engines
CN110725758A (en) * 2018-07-17 2020-01-24 现代自动车株式会社 Fuel supply system for liquefied petroleum gas vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4284047A (en) * 1978-09-26 1981-08-18 Robert Bosch Gmbh Apparatus for controlling the air-fuel quantity ratio in internal combustion engines
CN110725758A (en) * 2018-07-17 2020-01-24 现代自动车株式会社 Fuel supply system for liquefied petroleum gas vehicle
CN110725758B (en) * 2018-07-17 2022-12-06 现代自动车株式会社 Fuel supply system for liquefied petroleum gas vehicle

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)