FR2482202A1 - MEASURING DEVICE OF WATER IN FUEL-AIR MIXTURES OF FOUR-STROKE PETROL ENGINES - Google Patents

MEASURING DEVICE OF WATER IN FUEL-AIR MIXTURES OF FOUR-STROKE PETROL ENGINES Download PDF

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Publication number
FR2482202A1
FR2482202A1 FR8103214A FR8103214A FR2482202A1 FR 2482202 A1 FR2482202 A1 FR 2482202A1 FR 8103214 A FR8103214 A FR 8103214A FR 8103214 A FR8103214 A FR 8103214A FR 2482202 A1 FR2482202 A1 FR 2482202A1
Authority
FR
France
Prior art keywords
water
fuel
capillary tube
air mixtures
throttle 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Withdrawn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
FR8103214A
Other languages
French (fr)
Inventor
Walter Leipnitz
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.)
Chemische Werke Buna VEB
Original Assignee
Chemische Werke Buna VEB
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 Chemische Werke Buna VEB filed Critical Chemische Werke Buna VEB
Publication of FR2482202A1 publication Critical patent/FR2482202A1/en
Withdrawn legal-status Critical Current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
    • 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
    • F02M25/022—Adding fuel and water emulsion, water or steam
    • F02M25/0221—Details of the water supply system, e.g. pumps or arrangement of valves
    • F02M25/0225—Water atomisers or mixers, e.g. using ultrasonic waves
    • 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
    • F02M25/022—Adding fuel and water emulsion, water or steam
    • F02M25/025—Adding water
    • F02M25/028—Adding water into the charge intakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

The object of the invention is to reduce the cost for the metered addition of water to fuel-air mixtures of four-stroke spark ignition engines and to increase the functional reliability of the metering. A metering device is to be created for the metered addition of water to fuel-air mixtures regardless of their quantity, which ensures an approximately constant quantity of water at minimal cost and a high reliability. According to the invention this is achieved by arranging a capillary tube, slanted in the direction of flow, downstream of the throttle valve of the carburettor, at right angles to the direction of flow, the said capillary tube being connected both to a capillary tube as flow limiter as part of the feed line to the water storage vessel and to a capillary tube as equalising line, which ends directly upstream of the throttle valve in the wall of the intake line. The invention can be used in all four-stroke spark ignition engines which are operated with external mixture formation.

Description

L'invention concerne un dispositif destiné à doser l'eau dans des mélanges carburant-air des moteurs à essence à quatre temps. The invention relates to a device for metering water in fuel-air mixtures of four-stroke petrol engines.

I1 est bien connu que l'on peut ajouter, pour améliore le rendement du carburant mis en oeuvre dans les moteurs à essence, une petite quantité de vapeur d'eau ou d'eau au mélange carburant-air. Cette addition s opère au moyen de dispositifs qui représentent une dépense supplémentaire. It is well known that, to improve the efficiency of the fuel used in petrol engines, a small amount of water vapor or water can be added to the fuel-air mixture. This addition takes place by means of devices which represent an additional expense.

Ainsi, on connaît un dispositif qui est constitué par un tube pulvériseur, une buse et un corps d'humidification sur lequel on fait passer le mélange carburant-air (Document alluma
OS 843 100). On sait aussi fournir de l'eau distillée au moyen d'une buse dont la section est modifiée au moyen dsun dispositif de commande en fonction de la vitesse de rotation du moteur grâce à un pointeau disposé dans la buse (document allemand
OS 2 830 135).On connaît en outre un dispositif où il est four de l'eau au mélange carburant-air par l'interémdiaire dsun court tube capillaire. LBeau est ici dosée à partir dsun récipient sous pression, de la façon appropriée, au moyen dsun dispositif de réglage mécanique (document allemand OS 2 622 872
On sait aussi utiliser, pour doser des liquides combustibles ou de l'eau dans les mélanges carburant-air, des pompes à engrenages appropriées (document allemand OS 2 443 166
Tous les dispositifs connus ont cet inconvénient qui nécessitent une importante dépense en éléments de réglage sup pldmentaires. En outre, l'utilisation de buses présentant des sections aussi petites a une influence néfaste sur la sécurité du fonctionnement.Thus, a device is known which consists of a spray tube, a nozzle and a humidification body over which the fuel-air mixture is passed (Document ignited
OS 843 100). It is also known to supply distilled water by means of a nozzle, the cross section of which is modified by means of a control device as a function of the speed of rotation of the motor by means of a needle arranged in the nozzle (German document
OS 2 830 135) .A device is also known in which water is supplied to the fuel-air mixture via a short capillary tube. The water is here dosed from a pressurized container, in an appropriate manner, by means of a mechanical adjustment device (German document OS 2 622 872
It is also known to use, for dosing combustible liquids or water in fuel-air mixtures, suitable gear pumps (German document OS 2 443 166
All known devices have this drawback which requires a significant expenditure in additional adjustment elements. In addition, the use of nozzles having such small cross-sections has a detrimental effect on operational safety.

L'invention a pour objet d'abaisser le cout du dosage d'eau dans les mélanges carburant-air des moteurs à esse à quatre temps et d'augmenter la sécurité de fonctionnement du dosage. The object of the invention is to lower the cost of metering water in the fuel-air mixtures of four-stroke engines and to increase the operational safety of the metering.

L'invention se propose donc de réaliser un dispositif de dosage destiné a fournir de l'eau dans des mélanges carburan air qui assure le dosage d'une quantité d'eau à peu près constante indépendamment de la quantité de mélange carburant-air qui se présente, avec une dépense minimum et une grande fiabilité. The invention therefore proposes to provide a metering device intended to supply water in carburan air mixtures which ensures the metering of an approximately constant quantity of water independently of the quantity of fuel-air mixture which is present, with minimum expense and high reliability.

A cet effet, l'invention propose qu'en arrière du papillon du carburateur, on dispose à angle droit par rapport à la direction du courant, un tube capillaire biseauté dans le sens du courant, ce tube étant relié à un réservoir d'eau par une conduite d'alimentation et à une conduite de compensation, qui se termine dans la cloison, immédiatement en avant du papillon du carburateur. To this end, the invention proposes that behind the throttle valve of the carburetor, there is at right angles to the direction of the current, a capillary tube beveled in the direction of the current, this tube being connected to a water tank. by a supply line and a compensation line, which ends in the partition, immediately in front of the carburetor throttle.

L'invention sera mieux comprise après la description ci-après d'un exemple de réalisation de l'invention. The invention will be better understood after the description below of an exemplary embodiment of the invention.

Dans un carburateur qui fournit à un moteur à essence à quatre temps le mélange carburant-air nécessaire, on dispose au centre du tuyau d'admission aspirant, à une distance de 10 mm en arrière de l'axe du papillon, un tube capillaire dont le diamètre intérieur est d'environ 0,9 mm. Ce tube capillaire est biseauté à sa pointe dans le sens de l'écoulement. Ce tube capillaire est mis en communication, au moyen d'une pièce en I avec la conduite d'alimentation d'un réservoir d'eau et avec une conduite de compensation, dont le bout se termine en avant du papillon, dans la conduite d'admission. Le bout de la conduite de compensation se trouve à une distance d'environ 20 mm de l'axe du papillon . La liaison entre la pièce en I et le réservoir d'eau se fait également au moyen d'un tube capillaire. Le diamètre intérieur de ce dernier se monte également à environ 0,9 mm. La longueur est choisie de façon que la quantité dosée fournie soit d'environ 0,5 l/h. In a carburetor which supplies a four-stroke petrol engine with the necessary fuel-air mixture, there is a capillary tube in the center of the suction intake pipe, at a distance of 10 mm behind the throttle axis. the inside diameter is about 0.9 mm. This capillary tube is beveled at its tip in the direction of flow. This capillary tube is placed in communication, by means of an I-piece, with the supply pipe for a water tank and with a compensation pipe, the end of which ends in front of the butterfly, in the pipe d 'admission. The end of the compensation line is located at a distance of approximately 20 mm from the throttle axis. The connection between the I-piece and the water tank is also made by means of a capillary tube. The internal diameter of the latter also amounts to approximately 0.9 mm. The length is chosen so that the metered quantity supplied is approximately 0.5 l / h.

Claims (1)

R E V E N D I C A T I O N R E V E N D I C A T I O N Dispositif destiné à doser de l'eau dans les mélange carburant-air des moteurs à essence a quatre temps, caractéris en ce qu'en arrière du papillon du carburateur, à angle droit rapport au sens du courant, on dispose un tube capillaire bise; dans le sens du courant, ce tube capillaire étant relié aussi avec un capillaire où le passage est libre servant-comme limite de la quantité fournie sous la forme d'une conduite d'alimentai allant au réservoir à eau, qu'avec un capillaire servant de conduite de compensation qui se termine dans la conduite d'asp: tion, dans la paroi qui se trouve immédiatement en avant du papillon du carburateur.  Device for metering water into the fuel-air mixture of four-stroke petrol engines, characterized in that behind the throttle valve of the carburetor, at right angles to the direction of the current, there is a bise capillary tube; in the direction of the current, this capillary tube being also connected with a capillary where the passage is free, serving as a limit of the quantity supplied in the form of a supply line going to the water tank, than with a capillary serving compensation pipe which ends in the suction pipe, in the wall which is immediately in front of the carburetor throttle valve.
FR8103214A 1980-02-18 1981-02-18 MEASURING DEVICE OF WATER IN FUEL-AIR MIXTURES OF FOUR-STROKE PETROL ENGINES Withdrawn FR2482202A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD80219095A DD149253A1 (en) 1980-02-18 1980-02-18 DOSAGE DEVICE FOR WATER IN FUEL AIR MIXTURES OF FOUR-STROKE OTTO ENGINES

Publications (1)

Publication Number Publication Date
FR2482202A1 true FR2482202A1 (en) 1981-11-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR8103214A Withdrawn FR2482202A1 (en) 1980-02-18 1981-02-18 MEASURING DEVICE OF WATER IN FUEL-AIR MIXTURES OF FOUR-STROKE PETROL ENGINES

Country Status (4)

Country Link
DD (1) DD149253A1 (en)
DE (1) DE3104139A1 (en)
FR (1) FR2482202A1 (en)
IT (1) IT8147798A0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0530609A1 (en) * 1991-09-03 1993-03-10 Oberland Mangold GmbH Device for feeding a fuel additive for an internal combustion engine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB515862A (en) * 1938-06-28 1939-12-15 James Leandor Stephenson Improvements in or relating to the carburation systems of internal combustion engines
FR1246251A (en) * 1959-10-05 1960-11-18 Air hydrator for internal combustion engines
FR1286121A (en) * 1961-03-13 1962-03-02 H2O Super Comburent Air filter for combustion engines, comprising a device for humidifying the combustion air
FR1563132A (en) * 1968-02-27 1969-04-11
US4150639A (en) * 1977-09-26 1979-04-24 Buszek Frank J Gasoline engine fuel saver

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB515862A (en) * 1938-06-28 1939-12-15 James Leandor Stephenson Improvements in or relating to the carburation systems of internal combustion engines
FR1246251A (en) * 1959-10-05 1960-11-18 Air hydrator for internal combustion engines
FR1286121A (en) * 1961-03-13 1962-03-02 H2O Super Comburent Air filter for combustion engines, comprising a device for humidifying the combustion air
FR1563132A (en) * 1968-02-27 1969-04-11
US4150639A (en) * 1977-09-26 1979-04-24 Buszek Frank J Gasoline engine fuel saver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0530609A1 (en) * 1991-09-03 1993-03-10 Oberland Mangold GmbH Device for feeding a fuel additive for an internal combustion engine

Also Published As

Publication number Publication date
IT8147798A0 (en) 1981-02-13
DD149253A1 (en) 1981-07-01
DE3104139A1 (en) 1982-01-28

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