GB708711A - Improvements in or relating to a device for supplying anti-detonants to internal combustion engines - Google Patents

Improvements in or relating to a device for supplying anti-detonants to internal combustion engines

Info

Publication number
GB708711A
GB708711A GB4661/49A GB466149A GB708711A GB 708711 A GB708711 A GB 708711A GB 4661/49 A GB4661/49 A GB 4661/49A GB 466149 A GB466149 A GB 466149A GB 708711 A GB708711 A GB 708711A
Authority
GB
United Kingdom
Prior art keywords
valve
detonant
carburetter
intake manifold
venturi
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
GB4661/49A
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
Thompson Products Inc
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 Thompson Products Inc filed Critical Thompson Products Inc
Publication of GB708711A publication Critical patent/GB708711A/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
    • F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
    • F02M7/12—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves
    • 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
    • F02M13/06—Arrangements of two or more separate carburettors; Carburettors using more than one fuel the carburettors using different fuels
    • 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
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/14—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding anti-knock agents, not provided for in subgroups F02M25/022 - F02M25/10
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

708,711. Spray carburetters; treating charge. THOMPSON PRODUCTS, Inc. Feb. 21, 1949 [Aug. 6, 1948; Oct. 27, 1948; Oct. 27, 1948], Nos. 4661/49, 4662/49 and 4663/49. Classes 7(2) and 7(3) Anti-detonant from a float chamber 17, Fig. 2, is fed to the intake manifold or carburetter mixing passage past a metering valve 70 controlled by a diaphragm 22 subjected to intake manifold suction, the valve 70 having a bore 75 through which air flows to weaken the anti-detonant above a predetermined intake manifold suction. The anti-detonant preferably undergoes an initial aeration in a tube 62 and at high power outputs i.e. low manifold suction, an orifice 74 rests on a member 77 to close the auxiliary air bore 75, whereby a rich anti-detonant-air mixture is fed to a nozzle 15 in a flange 11 between the carburetter outlet 12 and intake manifold 13. When the suction increases, the valve 70 moves towards its seat 59, reducing the antidetonant flow and simultaneously admitting air through the bore 75 to weaken the anti-detonant mixture. At idling the valve 70 contacts its seat 59 and cuts off both the anti-detonant and the auxiliary air flow. In a modification the member 77 is replaced by a flat resilient pad and in Fig. 6 the auxiliary air passage 89 in the valve 70 co-operates with a recess 92 so that the air is only supplied over a short range between full open and closed position of the valve 70. The flange 11 may be positioned adjacent the carburetter Venturi so that the nozzle 15 opens into the lower part of the Venturi, and in Fig. 9 the anti-detonant device is bolted to a flat face 115 on the Venturi tube 112 and the anti-detonant is delivered through a nozzle 158 the outlet 159 of which is situated in the Venturi throat 125a and adjacent the outlet of an auxiliary Venturi 126 into which the main fuel nozzle 127 delivers. The carburetter has a choke valve 133 with a spring-loaded suction operated valve combined therewith and the throttle valve 123 is arranged in a conduit member 122 separate from and bolted to the main carburetter body 112. A power jet 128 has a spring-loaded valve therein controlled by a piston 130 actuated by intake manifold suction.
GB4661/49A 1948-08-06 1949-02-21 Improvements in or relating to a device for supplying anti-detonants to internal combustion engines Expired GB708711A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US708711XA 1948-08-06 1948-08-06

Publications (1)

Publication Number Publication Date
GB708711A true GB708711A (en) 1954-05-12

Family

ID=22097872

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4661/49A Expired GB708711A (en) 1948-08-06 1949-02-21 Improvements in or relating to a device for supplying anti-detonants to internal combustion engines

Country Status (1)

Country Link
GB (1) GB708711A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4541383A (en) * 1981-02-17 1985-09-17 Chevron Research Company Method and apparatus for minimum knock operation of an internal combustion engine on low knock-rated fuel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4541383A (en) * 1981-02-17 1985-09-17 Chevron Research Company Method and apparatus for minimum knock operation of an internal combustion engine on low knock-rated fuel

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