EP0045791A1 - Injection d'eau dans des moteurs a combustion interne - Google Patents

Injection d'eau dans des moteurs a combustion interne

Info

Publication number
EP0045791A1
EP0045791A1 EP81900663A EP81900663A EP0045791A1 EP 0045791 A1 EP0045791 A1 EP 0045791A1 EP 81900663 A EP81900663 A EP 81900663A EP 81900663 A EP81900663 A EP 81900663A EP 0045791 A1 EP0045791 A1 EP 0045791A1
Authority
EP
European Patent Office
Prior art keywords
water
container
invention defined
air
chamber
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Withdrawn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
EP81900663A
Other languages
German (de)
English (en)
Other versions
EP0045791A4 (fr
Inventor
Hugh H. Harren
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
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 Individual filed Critical Individual
Publication of EP0045791A1 publication Critical patent/EP0045791A1/fr
Publication of EP0045791A4 publication Critical patent/EP0045791A4/fr
Withdrawn legal-status Critical Current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
    • 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
    • F02M25/06—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding lubricant vapours
    • 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
    • F02M23/00—Apparatus for adding secondary air to fuel-air mixture
    • F02M23/04—Apparatus for adding secondary air to fuel-air mixture with automatic control
    • F02M23/08—Apparatus for adding secondary air to fuel-air mixture with automatic control dependent on pressure in main combustion-air induction system, e.g. pneumatic-type apparatus
    • F02M23/09—Apparatus for adding secondary air to fuel-air mixture with automatic control dependent on pressure in main combustion-air induction system, e.g. pneumatic-type apparatus using valves directly opened by low pressure
    • 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
    • F02M25/0227—Control aspects; Arrangement of sensors; Diagnostics; Actuators
    • 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
    • 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

Definitions

  • This invention relates to improved methods and means for addition of water as vapor or droplets into the fuel/air mixture of internal combustion engines.
  • PCV valve positive crankcase ventilation
  • conduit which extends from the crankcase to the fuel/air intake manifold and in which the PCV valve is included in series.
  • PCV valve is a check valve which opens in response to negative pressure at the fuel/air intake side to permit flow of air and "blow-by" gasses and fuel from the crankcase to the intake manifold. At zero negative pressure, the valve is closed. As pressure becomes more negative the PCV valve opens, but at some even more negative pressure the valve closes in part. Thus arranged, the valve limits blow-by inflow during periods of high vacuum and permits high inflow during medium vacuum operation.
  • a third factor that has a bearing on this matter is the supplemental air inlet valve.
  • the need to build automotive carburetors so that a single set of adjustment instructions could be issued to all mechanics without re ⁇ gard to local climactic conditions has led to compromises in carburetor designs.
  • Most carburetors have been arranged to provide uniform fuel/air ratio after warm-up that was optimum at only one intermediate speed and load range.
  • the inclusion of a vacuum operated air inlet valve in the system results in significant improvement in many automobiles and trucks. These valves respond to negative intake manifold pressure to admit ambient air to the manifold in parallel with the carburetor. They are open at low vacuum and heavy load, and they close against spring pressure as load decreases and vacuum increases.
  • At least for some engines and carburetors inclusion of the supplemental air valve permits carburetor adjustment to achieve a near optimum fuel/air ratio over a wider range of throttle openings and loads for a gain in efficiency and fuel economy.
  • Another object is to utilize a positive crankcase ventilation system for engines in introducing water with the fuel and air that is supplied to the engine.
  • a further object is to utilize both the positive crankcase ventilation system and the supplemental air valve to facilitate the addition of water to the fuel mixture of internal combustion engines.
  • a mixing chamber is included in the positive crankcase ventilation system at the intake manifold side of the PCV valve. Water is drawn into this chamber where it is vaporized, atomized, and otherwise distributed more or less uniformly with the flow of air and blow-by gasses that proceeds to the intake manifold in response to negative pressure. That arrangement does more than provide a mechanism by which water is transported from a storage reservoir to the intake manifold. It provides a means for controlling the amount of water that is introduced as a function of load and throttle opening.
  • An object of this invention is to provide an inexpensive means, within existing antipollution law, for intro ducing water into the fuel flow system in a way that will provide a meaningful net benefit to the majority of users, if not all users.
  • the embodiment of the invention that is now preferred introduces ambient air and water into the positive ventilation crankcase system at the same point in the system downstream from the PCV valve. The air and water and the flow from the PCV valve are mixed together in a chamber in that line. Consistent with the objective tominimize cost, neither the PCV valve nor the ambient air inlet valve is adjustable in the preferred embodiment. Adjustment is accomplished at the carburetor.
  • One of the features of the invention is an improved water storage container and improved apparatus for removing water from the container and delivering it to the PCV.
  • Figure 1 is a schematic view of a gasoline engine that has been fitted with a water/air/ blow-by gas system according to the invention
  • Figure 2 is a graph illustrating operation of the invention in one engine
  • Figure 3 is a top view of a flow control device according to the invention.
  • Figure 4 is a cross-sectional view taken on line 4-4 of Figure 3;
  • Figure 5 is a view in side elevation of an air inlet valve, a water flow tube. and a water storage container assembly;
  • Figure 6 is a top view of the storage con tainer of Figure 5.
  • Figure 7 is a cross-sectional view of the water container taken on line 7-7 of Figure 6 which includes a sectional view of part of the water flow tube.
  • the numeral 10 identifies a gasoline engine of conventional design. It includes a crankcase 12, a carburetor 14 and an intake manifold 16 by which a mixture of fuel and air are conducted from the carburetor 14 to the several cylinders of the engine.
  • blow-by gasses varies with engine condition, and engine speed and load, but a large proportion is represented by unburned fuel.
  • One of the antipollution measures that is required for motor vehicles is to draw the blow-by gasses from the crankcase region and return them to the fuel supply system of the engine. In practice, that is done by connecting a flow conduit from the crankcase of the engine to the intake manifold. Downward movement of the pistons within their cylinders produces a suction or negative pressure in the intake manifold. The negative pressure is often called vacuum or "a vacuum” and it results in withdrawal of blow-by gas from the ullage space in the crankcase to the intake manifold.
  • the same vacuum in the intake manifold is utilized to draw air through the carburetor where it is mixed with the fuel.
  • Engine speed is controlled by controlling quantity of fuel/air mixture that is allowed to pass to the intake manifold. That quantity is controlled by a throttle which operates to change the volumetric rate of air flow or air and fuel flow.
  • a throttle which operates to change the volumetric rate of air flow or air and fuel flow.
  • a valve is included in the flow passage from the crankcase to intake manifold.
  • the combination of the valve and flow passage is called a positive crankcase ventilation system, and the valve is called a positive crankcase ventilation valve.
  • They are usually called PCV system and PCV valve.
  • the PCV valve is designated 18. It is included in series in a flow passage or conduit which extends from a connection with the crankcase at point 20 to a connection with the intake manifold 16 at point 22. That portion of the flow passage which is upstream from the valve 18 is numbered 24.
  • the downstream portion of the flow passage includes a device 26 to be des- cribed below. That part of the flow passage that extends between valve 18 and device 26 is numbered 28.
  • the remaining part 30 extends from device 26 to point 22 at the intake manifold.
  • valve 18 There are several kinds of PCV systems and valves.
  • the system and valve shown here are like the most common system and valve, and they typify other systems and valves.
  • valve 18 the valve core 32 is normally closed.
  • the spring 34 urges the core in a direction (downward in Figure 1) to close the inlet 36.
  • pressure applied to the outlet 38 of the valve acts to force the core 32 to seal the inlet 36 and isolate the crankcase.
  • Negative pressure at the downstream side of the valve pulls the core 32 against the bias of spring 34 to open the inlet 36. Blow-by gasses flow around the core 32 and past the forward shoulder 40 of the valve housing. Gasses also flow to the outlet 38 through an opening 42 from a point behind the tapered forward end 44 of the core to the forward face of that forward end.
  • the shoulder 40 serves as a valve seat for the tapered forward end 44 of the valve core 32.
  • the core is moved against spring bias until the core seats against the shoulder to foreclose flow around the core.
  • flow is confined to opening 42 through the core.
  • An idealized graph of flow through the valve 18 as a function of negative pressure has been added to Figure 2 in the curve labelled "PCV FLOW.”
  • a primary function of the device 26 is to facilitate admission of water into the fuel/air mixture at the intake manifold. As in the case of the fule, the water must be vaporized or "atomized.” Not much water is required.
  • the water supply should be located below the device 26 to preclude gravity feed and syphoning. Water feed rate should be con ⁇ trolled by negative pressure downstream from the PCV valve in the PCV system.
  • a typical arrangement might include a one gallon water container mounted in the engine compartment eight or ten inches below the device 26, a one millimeter inside diameter hose which extends from a point close to the container bottom, leads to a 5.7 millimeter diameter orifice in device 26. Water emerging from the orifice enters a mixing chamber where it combines with the blow-by gas and air that flows through the PCV valve to the chamber.
  • the PCV valve outflow can be used to vaporize and automize the water and the mixing chamber arrangement shown in the drawing will do that.
  • the chamber shown is cylindrical with the inlet and outlet ports spaced around the side walls. Water and blow-by gas are directed into the central region of the chamber where they swirl around. It is a feature of the invention to add ambient air and to introduce it into this same mixing chamber. That feature is included in the embodiment shown. Ambient air is introduced at an angle to water and blow-by gas to air mixing and vaporization and atomization of the water at lower values of negative pressure. In this embodiment, ambient air is introduced at an end of the chamber.
  • the supplemental air inlet valve is incorporated in device 26.
  • the mixing chamber is designated 46.
  • Passages or flow lines 28 and 30 open to the chamber at diametric points.
  • the water line 43 extends from a point in the ullage space of water container 50 to the orifice 52 midway on the chamber wall between the ports connecting to lines 28 and 30.
  • the air inlet 54 opens at the upper end wall of the chamber. It communicates with a larger recess which contains a compression spring 56.
  • the recess opens to the outwardly tapered lower, wall of another chamber.
  • a ball 58 in that chamber cooperates with the tapered wall to form an air shut-ofrf valve.
  • spring 56 holds the ball 58 away from tapered wall 60 so that air may be admitted.
  • air flow past ball 58 forces it against the force of spring 56.
  • the ball is forced against its tapered seat 60 and air flow ceases.
  • negative pressure at the intake manifold varies inversely with some combination of throttle opening and load so negative pressure is the dependent variable.
  • negative pressure is indicated on the abscissa because it is the independent variable in the relationship between negative pressure and the flow of supplemental air, blow-by gas and water.
  • negative prssure is assumed to have an idealized inverse relation to throttle opening and engine load. Ambient air intake increases with negative pressure until flow reaches a level at which it forces closure of the air valve. The flow of a blow-by gas is deferred until negative pressure reaches a value sufficient to open the PCV check valve. Thereafter, blow-by gas flow increases with negative pressure until the high side valve closes to limit flow to an intermediate value.
  • Water flow is determined by negative pressure and weight of the water. Since air and gas flow more readily than does water, negative pressure tends to be overcome or "satisfied" by air and gas when the air and PCV valves are full open. Water flow increases when the air valve closes and the PCV valve moves to limited flow position.
  • a preferred form of the device 26 is the structure 70 shown in Figures 3 and 4. Except for the three ports that open into the mixing chamber 72 and the coupling elements associated with them, the unit is symmetrical about its vertical centerline. That centerline is perpendicular to the page in the case of Figure 3, and lies in the plane of the page in the case of Figure 4.
  • the generally cylindrical housing 74 is made of metal to facilitate heat conduction.
  • the upper half of the housing is formed with a series of closely spaced circumferential slots.
  • the metal that remains forms a series of outwardly extending heat dissipating fins arranged in parallel spaced planes. Two fins, numbered 76 and 78, have been numbered for identification.
  • the upper end of the housing is bored axially for a distance about one-third the height of the unit.
  • the lower end 80 of this bore called the ball chamber, is tapered inwardly and downwardly to form a seat for the supplemental air valve ball 82.
  • the upper end of the bore is enlarged to form a shoulder on which rests a ball retainer plate 84. It is foraminated to admit air and to exclude debris, and its function, is to retain ball 82.
  • the plate is held in place by a convenient means such, for example, as spring retainer 86.
  • a second recess cylindrical in shape in the preferred embodiment, is formed in the lower face of the housing. It is closed by an end plate 88 which is press fitted into the outer end of the recess to form the mixing cavity 72.
  • a tubular inlet coupling 90 is fitted into one opening and a similar tubular coupling 92 is fitted into the diametric opening.
  • One of these fittings is arranged for connection to a flow line that extends to the intake manifold of an engine.
  • the other is arranged for connection to a flow line that extends to the downstream side of the PCV valve of that engine.
  • the third tubular inlet coupling 94 is mounted in the intermediate mixing chamber port. It is arranged for connection to a water inlet line and water source.
  • the ball chamber and the mixing chamber are connected by an axial bore which is large enough in diameter at the side toward the ball chamber to accommodate an axially arranged compression spring 96.
  • the end of this axial bore toward the mixing chamber 72 is smaller in diameter than the diameter of the spring.
  • a shoulder is formed at the step in the bore's diameter and the spring 96 is trapped between that shoulder and the ball 82.
  • the preferred form of the invention includes a means for delivering water in mist or droplet form to the mixing chamber of device 26.
  • FIG. 5 A preferred form of that means is shown in Figures 5, 6 and 7. It includes a water storage container 98 and a water flow tube 100.
  • Figure 5 illustrates how they are interconnected to one another and to the mixing device 26.
  • the flow tube is fitted with a dividing means for dividing water and droplets into fine droplets at a point within the tube close to its end 102 at its connection to the container.
  • that means has the form of a small piece of fine metal screening 104.
  • One of the advantages is that the screen does an excellent job whatever its specific shape. The only requirement is that the screen be quite fine and that it extend across the flow path. It is shown in Figure 7 to be inserted in the end 102 of the tube against the end of a tubular insert 106.
  • Insert 106 strengthens the wall of the flexible tube to protect the screen against being crushed and to provide rigidity against buckling of the tube when assembled with the outlet fitting 110 of the container.
  • a similar tubular insert 108 near the other end of tube 100 provides rigidity to facilitate assembly with the mixing chamber.
  • the tube is transparent. That is helpful during manufacture because it permits easy inspection of the condition and position of the inserts and the filter screen. After installation proper operation can be verified visually because the water droplets are visible through the flow tube wall.
  • the container 98 is made of a high impact plastic material in this case, and its inner surface does not wet. That,, while not essential, is a feature of the invention.
  • the right end in Figures 5 and 7, its shape is conventional and any convenient shape may be employed.
  • the fill opening is formed on a sloping surface 112 and is surrounded by a fill neck 114 which slopes upwardly and forwardly. The rim of the neck is below the level of the upper wall 116 of the container so that it is impossible to completely fill the container.
  • a fill level marker 118 ( Figure 5) and written instructions to the user suggest filling to the level of the marker.
  • the container is shown to be properly filled in Figure 7.
  • the body of water is numbered 120 and the ullage space is identified by reference numeral 122.
  • Elements 130, 132 and 134 are provided to facilitate mounting the container. As best shown in Figures 6 and 7, these mounting elements are molded on the vertical centerline of the container. That is true, too, of the out- let nipple 110.
  • Figure 6 illustrates that the side walls are parallel in this version. It is the outlet end, the left end in Figure 5 and Figure 7 and the end at the bottom of Figure 6, that is specially shaped. That end is curved in the vertical center plane as shown in Figures 5 and 7. the region of the center plane an elongated transverse bulg extends over the length of the outlet end.
  • the numeral 136 identifies the bulge in Figures 5 and 6.
  • the bulge and the outlet end shape are formed as shown so that the droplet forming tube 140 will be positioned as it is shown to be in Figure 7 notwithstanding that it is fixed to the container only by having its end forced through an upper wall opening at 142 whose diameter is a little smaller than the outer diameter of the tube 140.
  • One end 144 of tube 140 opens to the atmosphere outside the container.
  • the other end 146 opens to the ullage space 122.
  • the length of the tube 140 is such that, when properly assembled in the container opening, end 146 of the tube is positioned just below the entry opening into outlet nipple 110 as shown.
  • the outer diameter of the tube shown is one centimeter. Its inside diameter is just a little greater than 0.8 centimeters.
  • a short length 150, 0.5 centimeters, of tubing has been forced into the tube 140. Its inside diameter is about 0.5 centimeters and the inner end has been cut off square in the transverse plane.
  • four perforations are formed through the wall of tube 140. Those perforations are more or less uniformly spaced around the periphery of tube 140 and one has been numbered 152 to iden tification.
  • insert 150 presents an annular shoulder just above the perforations to a water and air bubble mixture that flows in the droplet forming tube.
  • Water droplets and splashes that pass through the opening in the insert with substantial velocity strike the inner surface of thecontainer in the vicinity of the inlet of the nipple 110 or they strike the "splash board" surface of a V-shaped protrusion 156 that extends at least across the bulged region of the outlet. Because the container material does not wet, the water that passes through the insert 150 forms droplets and rivulets that become drops.
  • Both ends of the droplet forming tube are normally positioned above the water, but the tube will be filled to that level in the absence of engine vacuum because the tube 140 is punctured at or near its lowest point.
  • a short length of small diameter tubing is threaded through the puncture so that a port 160 is disposed within the tube 140 while another port 162 is disposed without tube 140.
  • Port 160 at the inside extends toward, and. has its opening toward, the end 146.
  • Flow of air and water droplets proceeds during those intervals in which engine operation results in development of a negative pressure in the chamber of device 26.
  • Air is withdrawn from the ullage space. Outside air is drawn into the end 144 of tube 140. Tube water is forced out of end 146 and almost immediately, after air is first drawn .past the lowest point in the tube, it is a confusion of air and splashing water that reaches the shoulder at the end of insert 150 and the splash board at indent 156.
  • Some of the water forms droplets as it emerges from perforations 152 and as it falls from the splash board. They are drawn into the flow tube 100 and may be seen traversing the length of the tube as drops or small streamers and variously shaped small quantities of water. In large degree the flow has adequate character for addition to the mixing chamber of device 26 as it flows along the flow tube. Any larger quantity of water arriving at the screen 104 is disbursed by the screen.
  • a major advantage of the construction shown lies in its low cost and foolproof simplicity. Another is that the water that is added by this system reaches the engine when the operating conditions are those conditions at which some of the additive chemicals are most needed and most effective. The result is that it is more economical and efficient to introduce them with the water in this system than to add them to the gasoline directly.
  • the invention provides another benefit that can be very substantial.
  • a substantial amount of vaporized oil is drawn from the crankcase through the PCV valve and is returned to the inle manifold where it mixes, as a vapor, with fuel and air. Burning oil accelerates build-up of carbon deposits.
  • the oil tends to condense under most speed and load conditions.
  • the oil condensate which may be mixe with water, serves as a lubricant at the valves and in the cylinders. Even if it burns eventually, it will have been useful in minimizing friction in the process.

Landscapes

  • 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)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

De l'eau en provenance d'un recipient special (98) est aspiree dans la tuyauterie d'admission en carburant d'un moteur a combustion interne, en reponse a la pression negative presente dans la tuyauterie, au travers d'une soupape d'admission d'air (70) et l'air et l'eau sont melanges dans une chambre (72) connectee entre la soupape (PCV) et la tuyauterie.
EP19810900663 1980-02-11 1980-12-24 Injection d'eau dans des moteurs a combustion interne. Withdrawn EP0045791A4 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US12067880A 1980-02-11 1980-02-11
US120678 1980-02-11
US20041180A 1980-10-24 1980-10-24
US200411 1980-10-24

Publications (2)

Publication Number Publication Date
EP0045791A1 true EP0045791A1 (fr) 1982-02-17
EP0045791A4 EP0045791A4 (fr) 1982-06-18

Family

ID=26818641

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810900663 Withdrawn EP0045791A4 (fr) 1980-02-11 1980-12-24 Injection d'eau dans des moteurs a combustion interne.

Country Status (5)

Country Link
EP (1) EP0045791A4 (fr)
JP (1) JPS57500203A (fr)
ES (1) ES8205945A1 (fr)
IT (1) IT1135413B (fr)
WO (1) WO1981002327A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983001979A1 (fr) * 1981-11-25 1983-06-09 Norman James Dodge Dispositif d'injection de melange air-combustible

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR481380A (fr) * 1916-04-03 1916-11-28 Harry William Sturgeon Perfectionnements apportés aux moteurs à combustion interne
DE621772C (de) * 1934-02-17 1935-11-13 Arthur Koellner Einrichtung zum Zufuehren von Wasser zur Gemischladung bei Brennkraftmaschinen

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US3173408A (en) * 1963-03-19 1965-03-16 Exxon Research Engineering Co Method and apparatus for injecting auxiliary liquids into intake system of internal combustion engine
US3528225A (en) * 1966-12-07 1970-09-15 Frank A Manfredi Fluid injecting apparatus for internal combustion engines
US3537434A (en) * 1968-12-30 1970-11-03 David E Sherrill Vacuum fuel additive inductor for internal combustion engines
US3557763A (en) * 1969-07-25 1971-01-26 Automotive Performance Inc Vapor injector
US3716040A (en) * 1970-08-21 1973-02-13 I Herpin Fuel additive inductor for internal combustion engine
US3809035A (en) * 1971-08-25 1974-05-07 Ballmatic Corp Air admission valve for internal combustion engines equipped with pollution control valve
US3946710A (en) * 1972-03-20 1976-03-30 Albano Enterprises, Inc. Supplemental air valves and supplemental air systems for internal combustion engines
US3856901A (en) * 1972-10-25 1974-12-24 Tvi Marketing Inc Vapor induction system
US3923024A (en) * 1974-03-28 1975-12-02 John W Dabrio Air metering valve for engine air inlet system
US3955542A (en) * 1974-11-08 1976-05-11 William Dale Skaggs Water injector valve and regulator
JPS5287524A (en) * 1976-01-14 1977-07-21 Yukio Yasuda Device for reducing noxious exhaust gas in internal combustion engine
US4183338A (en) * 1977-05-04 1980-01-15 U.S.A. 161 Developments Ltd. Combustion control system adding a liquid, exhaust gases, and PCV gases
US4132247A (en) * 1977-05-04 1979-01-02 Owen, Wickersham & Erickson Fluid mixing apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR481380A (fr) * 1916-04-03 1916-11-28 Harry William Sturgeon Perfectionnements apportés aux moteurs à combustion interne
DE621772C (de) * 1934-02-17 1935-11-13 Arthur Koellner Einrichtung zum Zufuehren von Wasser zur Gemischladung bei Brennkraftmaschinen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO8102327A1 *

Also Published As

Publication number Publication date
ES499298A0 (es) 1982-06-16
ES8205945A1 (es) 1982-06-16
IT8119655A0 (it) 1981-02-11
JPS57500203A (fr) 1982-02-04
EP0045791A4 (fr) 1982-06-18
IT1135413B (it) 1986-08-20
WO1981002327A1 (fr) 1981-08-20

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