EP0013185A1 - Dispositif d'homogénéisation du mélange air-carburant alimentant les chambres de combustion d'un moteur à explosion - Google Patents

Dispositif d'homogénéisation du mélange air-carburant alimentant les chambres de combustion d'un moteur à explosion Download PDF

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Publication number
EP0013185A1
EP0013185A1 EP79303076A EP79303076A EP0013185A1 EP 0013185 A1 EP0013185 A1 EP 0013185A1 EP 79303076 A EP79303076 A EP 79303076A EP 79303076 A EP79303076 A EP 79303076A EP 0013185 A1 EP0013185 A1 EP 0013185A1
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EP
European Patent Office
Prior art keywords
carburetor
fuel atomizing
fuel
screen according
intake manifold
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Withdrawn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
EP79303076A
Other languages
German (de)
English (en)
Inventor
Edward E. Johnson
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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0013185A1 publication Critical patent/EP0013185A1/fr
Withdrawn legal-status Critical Current

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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
    • 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

Definitions

  • This invention relates in general to vaporization of liquid fuel fed'to internal combustion engines and, in particular, to a liquid fuel vaporizing screen unit.
  • the unit may be used singly or in multiple depending upon whether a carburetor is a one-barrel or multi-barrel carburetor feeding corresponding intake manifold openings.
  • Each screen unit is positioned in a manifold intake opening such that fuel laden air from the carburetor passes through screening of the screen units with screen mesh and wire size coupled with depressed dish shape of the screen units such as to optimize vaporization atomizing of fuel in the fuel air mixture being fed to the engine.
  • Fuel economy is an increasingly important consideration in vehicles, particularly with present energy problems and fuel shortages and constantly increasing fuel costs. Further, present day problems of environmental pollution have resulted in legislative action requiring more efficient engines with less pollution to meet tighter emission standards. In meeting such standards, exhaust gas recirculation, catalytic converters and/or auxiliary air pumps and other associated controls are designed into vehicles, both passenger cars and trucks, resulting in greatly increased vehicle costs. Still further, addition of such additional pollution control equipment is a further power drain on-the vehicle engine further decreasing efficiency. Obviously, if engine efficiency can be increased to the point that pollution control devices are no longer needed in meeting tightened pollution standards still further increases in efficiency are attainable through the lessened power loading with removal of driven equipment. If engine efficiency is such that catalytic converters and/or other pollution control devices are not needed then the range of fuels useable is expanded and the engine may be tuned for optimum engine efficiency and not for optimized pollution control device efficiency.
  • a screen unit of relatively fine mesh screening (preferably of stainless steel wire) having a depending formed depression sized to fit the intake opening of the intake manifold beneath a barrel of a carburetor with the depending formed depression extending down and away from the carburetor.
  • Screen units 11, 11' or 11 which may also be called screen baskets, may be formed to fit different engine intake manifold openings 13 but a typical screen unit size at the depression perimeter diameter is approximately one and one-half inches, a flange extension of about one quarter of an inch and a bowl depth of approximately three quarters of an inch.
  • Stainless steal wire or copper wire screen mesh with a 60-40 mesh of 0.010 inch diameter wire has proven to be a particularly good mesh from which screen units, 11,11' or 11" may be formed in providing excellent operational results.
  • the screen units intercept course fuel droplets dispersed in the airstream and atomize the fuel droplets in turbulence in the screen and about the wires of the screen units in creating a suspension of minute fuel particles in the air downstream from the screen units in an air/fuel mist flowing to the cylinders through the intake manifold 10 as shown diagrammatically in Figure 1.
  • the downward depressed dishes or bowls of screen units 11, 11' or 11" increase the sateen area for passage of fuel/air mixture, therethrough with minimized obstruction to through flow of fuel laden air to the engine cylinders. Tests with a number of automobiles have shown beneficial operational results with mileage increase generally falling in a range of 20% to 50% increase.
  • Screen units 11, 11' and 11" and in other variation modifications thereof to fit various intake manifold openings under carburetors for various engines are useable not only with a single-barrel carburetor such as in Figure 1, but with two-barrel carburetors 17' and a two-intake-hole 13' manifold 10' such as in Figure 5.
  • screen units 11, 11' and 11" may also be used with four-barrel carburetors (not shown) in much the same manner with, in some instances, screen units used in only the two front intake manifold openings and in others in all four manifold openings.
  • the set screw 22 of vacuum T unit 23 in line 24 is set to achieve fast idle with air bleed through the vacuum T 23 bleed opening 27 to line 24. Then after adjusting set screw 22 the carburetor linkage is set to idle in accord with factory specifications.
  • carburetors may be provided with an air bleed adjustment eliminating the requirement for addition of a vacuum T 23 in a PCV line 24.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP79303076A 1978-12-29 1979-12-31 Dispositif d'homogénéisation du mélange air-carburant alimentant les chambres de combustion d'un moteur à explosion Withdrawn EP0013185A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US97324078A 1978-12-29 1978-12-29
US973240 1978-12-29

Publications (1)

Publication Number Publication Date
EP0013185A1 true EP0013185A1 (fr) 1980-07-09

Family

ID=25520660

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79303076A Withdrawn EP0013185A1 (fr) 1978-12-29 1979-12-31 Dispositif d'homogénéisation du mélange air-carburant alimentant les chambres de combustion d'un moteur à explosion

Country Status (1)

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EP (1) EP0013185A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997013976A1 (fr) * 1995-10-06 1997-04-17 Filterwerk Mann+Hummel Gmbh Tubulure d'admission

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1526963A (en) * 1922-04-17 1925-02-17 Aquila D Chandler Revaporizer
US1533364A (en) * 1922-02-18 1925-04-14 Barrott Stamping Company Charge vaporizer for manifold branches
US2535410A (en) * 1947-08-28 1950-12-26 Steve P Grevas Gaseous fluid vaporizer and mixing device
DE6909538U (de) * 1969-02-08 1969-10-16 Reinhard Kazmierowski Benzingemischverfeinerungsfilter
DE7119219U (de) * 1971-10-07 Roland E Zusatzvorrichtung für Vergaser
DE2035428A1 (de) * 1970-07-16 1972-01-27 Rolando, Francesco, Turin (Italien) Verfahren zur Reduktion des Kohlenoxyd in Auspuffgasen von Verbrennungsmotoren, insbesondere von Vergasermotoren, sowie Vorrichtung zum Durchführen des Verfahrens
US3885539A (en) * 1974-01-23 1975-05-27 Hydro Catalyst Corp Precombustion catalyst device for use with an internal combustion engine employing a vaporizable liquid fuel and an engine utilizing such a device
US4023544A (en) * 1975-02-14 1977-05-17 F. D. Farnum Co. Precombustion conditioning device for internal combustion engines

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7119219U (de) * 1971-10-07 Roland E Zusatzvorrichtung für Vergaser
US1533364A (en) * 1922-02-18 1925-04-14 Barrott Stamping Company Charge vaporizer for manifold branches
US1526963A (en) * 1922-04-17 1925-02-17 Aquila D Chandler Revaporizer
US2535410A (en) * 1947-08-28 1950-12-26 Steve P Grevas Gaseous fluid vaporizer and mixing device
DE6909538U (de) * 1969-02-08 1969-10-16 Reinhard Kazmierowski Benzingemischverfeinerungsfilter
DE2035428A1 (de) * 1970-07-16 1972-01-27 Rolando, Francesco, Turin (Italien) Verfahren zur Reduktion des Kohlenoxyd in Auspuffgasen von Verbrennungsmotoren, insbesondere von Vergasermotoren, sowie Vorrichtung zum Durchführen des Verfahrens
US3885539A (en) * 1974-01-23 1975-05-27 Hydro Catalyst Corp Precombustion catalyst device for use with an internal combustion engine employing a vaporizable liquid fuel and an engine utilizing such a device
US4023544A (en) * 1975-02-14 1977-05-17 F. D. Farnum Co. Precombustion conditioning device for internal combustion engines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997013976A1 (fr) * 1995-10-06 1997-04-17 Filterwerk Mann+Hummel Gmbh Tubulure d'admission

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