Abstract: An improved auxiliary water-supply device for use with an internal combustion engine system is disclosed.

Abstract: The invention relates to a turbo charged combustion engine with water injection. The characterizing feature of the engine is that there is provided one water injector for each cylinder, each respective injector facing the inlet port for injecting at least the main portion of the water jet straight into the inlet port.

Abstract: A controlled amount of a fluid (steam or water or a solution of water plus additives) is injected into an internal combustion engine to improve combustion, efficiency, and to reduce emissions. The amount of the fluid injected is controlled in response to engine need. The steam is generated by the heat produced by the engine. Combustion gas temperature is used to control the amount of steam produced by varying the fluid flow through one or more fixed or variable orifice control valves. The steam is injected in a piston engine to cool peak temperatures, to prevent detonation and pre-ignition, to smooth out hot spots, to prevent auto-ignition or dieseling, and to use the vapor energy in the expansion cycle to increase low speed torque and acceleration. The steam is used to cause full retard of the vacuum spark advance during acceleration at full load from low speed, and a large amount of steam is injected at this point in the cycle to prevent pre-ignition and detonation.

Abstract: A combustion engine with electromagnetic controlled fuel injection apparatus is provided with a water injection for short duration during load increases in order to prevent thermal damage. For this reason there are provided, in addition to the fuel injection valves, also water injection valves of the same construction and size, whereby all injection valves are operated by a common electrical control device one after the other in a cycling sequence.

Abstract: A controlled amount of a fluid (steam or water or a solution of water plus additives) is injected into an internal combustion engine to improve combustion, efficiency, and to reduce emissions. The amount of the fluid injected is controlled in response to engine need. The steam is generated by the heat produced by the engine. Combustion gas temperature is used to control the amount of steam produced by varying the fluid flow through one or more fixed or variable orifice control valves. The steam is injected in a piston engine to cool peak temperatures, to prevent detonation and pre-ignition, to smooth out hot spots, to prevent auto-ignition or dieseling, and to use the vapor energy in the expansion cycle to increase low speed torque and acceleration. The steam is used to cause full retard of the vacuum spark advance during acceleration at full load from low speed, and a large amount of steam is injected at this point in the cycle to prevent pre-ignition and detonation.

Abstract: A fluid injection system for an internal combustion engine such as a spark-ignition engine in which an injection nozzle injects a finely divided spray of fluid, such as water or a water solution, into the engine in response to a flow of atomizing air. The nozzle is connected to a fluid supply reservoir and to the outlet line of an air-injection pump that is connected to an electronic control circuit which includes a detonation sensor coupled to the intake manifold. The electronic circuit operates the pump in response to detonation of the fuel charge in the combustion chamber by virtue of its connection to the detonation sensor. As a result, the flow of atomizing air to the nozzle and therefore the rate and magnitude of water injection is responsive to fuel detonation. An inductive pickup can also be provided that is coupled to the ignition system of the engine and connected to the electronic circuit so that the pump is also operated in response to engine speed.

Abstract: An internal combustion engine in which a compact ring type boiler pack is installed at the top of each cylinder recessed into the cylinder head. Water is pumped through each boiler at a rate proportional to the cylinder temperature, to maintain a proper cooling and steam injection balance, the generated steam being injected peripherally into the cylinder during the last part of the power stroke, timed by the temperature in the boiler pack and the pressure in the cylinder. Boiler feed water is controlled by movement of the inlet valve actuating mechanism of the particular cylinder. The boiler provides multiple stage conversion of the water to steam, the peripheral steam injection providing internal cooling of the cylinder walls without interfering with normal combustion. The steam system is adaptable to existing internal combustion engines and results in reduced fuel consumption, very low pollutant emissions in the exhaust and a very efficient thermal cycle.

Abstract: A system for injecting fluid into an internal combustion engine, in which a carburetor supplies an air/fuel mixture to the engine in response to the demand on the engine, and a nozzle receives the fluid and a portion of the mixture and injects the fluid and the mixture into the carburetor at a rate proportional to the flow rate of the mixture. A supercharger receives the mixture from the carburetor and increases the pressure and flow rate of the mixture in response to a predetermined demand on the engine before the mixture is introduced to the engine.

Abstract: A controlled amount of a fluid (steam or water or a solution of water plus additives) is injected into an internal combustion engine to improve combustion, efficiency, and to reduce emissions. The amount of the fluid injected is controlled in response to engine need. The steam is generated by the heat produced by the engine. Combustion gas temperature is used to control the amount of steam produced by varying the fluid flow through one or more fixed or variable orifice control valves. The steam is injected in a piston engine to cool peak temperatures, to prevent detonation and pre-ignition, to smooth out hot spots, to prevent auto-ignition or dieseling, and to use the vapor energy in the expansion cycle to increase low speed torque and acceleration. The steam is used to cause full retard of the vacuum spark advance during acceleration at full load from low speed, and a large amount of steam is injected at this point in the cycle to prevent pre-ignition and detonation.

Abstract: An arrangement for supplying an additive to a fuel-injected air compressing internal combustion engine. The arrangement includes a feeding device arranged at an inlet or intake of the internal combustion engine and a load and/or speed dependent metering device is provided which controls the supply of the additive to the feeding device.

Abstract: An apparatus and method of introducing a fluid, as water, alcohol, or a mixture of water and alcohol, into intake air of an internal combustion engine. An electric motor drives a pump that delivers fluid under pressure to a nozzle mounted on the cover of an air cleaner above the air inlet of the carburetor. The electric energy supplied to the electric motor is modulated in a manner to operate the motor so that the pump discharges fluid at a rate that maintains the fluid to air/fuel mixture ratio substantially constant over the operating rpm of the engine. An electric control circuit is operably associated with a diaphragm assembly connected to the intake manifold and a light emitting and reflective light sensing component operable to produce an electric signal response to movement of the diaphragm that is proportional to vacuum pressure in the intake manifold.

Abstract: This invention relates to a feed system for introducing water in the liquid and/or vaporous state into the suction path of an internal combustion engine, consisting of a water stock vessel, of a heat exchanger, to one side of which exhaust gases from the internal combustion engine can be admitted and to the other side of which the water can be admitted, and of the heat barrier upstream of the heat exchanger, which comprises a metering device for metering the quantity of water, which is to be fed into the suction path, and a control device which controls the metering device as a function of at least one operating parameter of the internal combustion engine.

Abstract: An electric pump delivers water from an reservoir to a nozzle located in the air intake manifold of a diesel engine. The pumping capacity of the pump is adjustable by varying the resistance of a variable resistor in series with the pump so that the system can be used with various engines requiring different amounts of water. Several safety switches are provided to prevent water from being pumped unless the engine is running at a predetermined speed, a predetermined oil pressure is reached and the throttle is depressed. An indicator light indicates when the water reservoir is empty and needs refilling.

Abstract: A fluid injection system for an internal combustion engine such as spark-ignition engine in which an injection nozzle injects a finely divided spray of fluid, such as water or a water solution, into the engine in response to a flow of atomizing air. The nozzle is connected to a fluid supply reservoir and to the outlet line of an air-injection pump that is connected to an electronic control circuit which includes an inductive pick-up coupled to the ignition system of the engine and a pressure responsive sensor that is coupled to the intake manifold. The electronic circuit thus operates the pump in response to engine speed by virtue of its connection to the ignition system through the inductive pick-up and in response to engine load by virtue of its connection to the intake manifold through the pressure responsive sensor. As a result, the flow of atomizing air to the nozzle and therefore the rate and magnitude of water injection is responsive to engine speed and engine load.

Abstract: A fluid injection system for an internal combustion engine such as a spark-ignition or compression-ignition engine in which an injection nozzle injects a finely divided spray of fluid, such as water or a water solution, into the engine in response to a flow of atomizing air. The nozzle is connected to a fluid supply reservoir and to the outlet line of an air-injection pump connected to and controlled by an electronic circuit that includes a pick-up coupled to the ignition system of the engine. The electronic circuit responds to spark plug firing rate, which is proportional to engine speed, and to the amplitude of the voltage across the spark plug gap, which is proportional to engine load, and varies, respectively, the pump stroke rate and the pump stroke length accordingly. As a result, the flow of atomizing air to the nozzle and therefore the rate and magnitude of water injection is responsive to engine speed and load.

Abstract: A fluid injection system for an internal combustion engine such as a spark-ignition or compression-ignition enginein which an injection nozzle injects a finely divided spray of fluid, such as water or a water solution, into the engine in response to a flow of atomizing air. The nozzle is connected to a fluid supply reservoir and to the outlet line of an air-injection pump connected to the intake manifold of the engine and to an electronic circuit that includes an inductive pick-up coupled to the ignition system of the engine. The pump operates in response to engine speed by virtue of its connection to the ignition system and in response to engine load by virtue of its connection to the intake manifold. As a result, the flow of atomizing air to the nozzle and therefore the rate and magnitude of water injection is responsive to engine speed and engine load.

Abstract: The present invention relates to a water vapor injection system for introducing artificially high humidity air into the carburetor of an internal combustion engine. Once delivered to the carburetor, the high humidity or moisture-laden air mixes with the air-fuel mixture normally passing from the carburetor into the combustion chambers to increase the combustion efficiency of the internal combustion engine.A forced air system is generated by an air injection pump, and this forced air is heated to alter its vaporization characteristics prior to being circulated through a water filled container. As the heated air is exposed to the water within the container, the air increases in moisture content as the heat associated with the air tends to vaporize water about the interface between respective bubbles and the surrounding water.

Abstract: A fluid injection system and method for an internal combustion engine such as a spark-ignition or compression-ignition engine in which an injection nozzle injects a finely divided spray of fluid, such as water or a water solution, into the engine in response to a flow of atomizing air. The nozzle is connected to a fluid supply reservoir and to the outlet line of an air-injection pump that supplies pressurized air to the exhaust system of the engine. The air-injection pump provides the supply of atomizing air to the nozzle with the pressure of the air and therefore the fluid injection being responsive to both the engine speed and the exhaust gas pressure. The injected fluid advantageously functions as a cooling agent to suppress detonation and provide smoother engine operation and greater fuel efficiency.

Abstract: The present invention relates to a water vapor injection system for introducing artifically high humidity air into the carburetor of an internal combustion engine. Once delivered to the carburetor, the high humidity or moisture-laden air mixes with the air-fuel mixture normally passing from the carburetor into the combustion chambers to increase the combustion efficiency of the internal combustion engine.A forced air system is generated by an air injection pump, and this forced air is heated to alter its vaporization characteristics prior to being circulated through a water filled container. As the heated air is exposed to the water within the container, the air increases in moisture content as the heat associated with the air tends to vaporize water about the interface between respective bubbles and the surrounding water.

Abstract: An internal combustion engine in which a compact ring type boiler pack is installed around each cylinder under the cylinder head. Water is pumped through each boiler at a rate proportional to the cylinder temperature, to maintain a proper cooling and steam injection balance, the generated steam being injected peripherally into the cylinder in pulses, timed by a valve which is controlled by movement of the inlet valve actuating mechanism of the particular cylinder. The boiler has multiple stages to ensure complete conversion of the water to steam, the peripheral steam injection providing internal cooling of the cylinder walls without interfering with normal combustion. The steam system is adaptable to existing internal combustion engines and results in reduced fuel consumption, very low pollutant emissions in the exhaust and a very efficient thermal cycle.

Abstract: A device for injecting water into one cylinder of an internal combustion engine, in order to reduce the temperature of said cylinder and thus to avoid the nitrogen compounds (NOx) in the exhaust gases; said device comprising a pump connected to an injector which opens into said cylinder and an actuating mechanism for said pump coupled to a selected point of the intake control position of the engine valve actuating system.

Abstract: A water injection system includes generally cylindrical fluid valve bodies mounted protruding into each combustion cylinder of an internal combustion engine. The fluid valve bodies are supplied with water from a pump and are actuated by rocker arms and rods following a cam shaft driven synchronously by the engine for injection of water during a predetermined portion of the combustion cycle in each cylinder.

Abstract: A vapor injection system for an internal combustion engine including a mist chamber having a perforated section communicating with the inlet to the carburetor and a water tube and an air tube discharging jets of water and air, respectively, in convergent paths within the mist chamber to create an atomized water spray. The perforated section of the mist chamber assures the complete atomization of all water particles passing into the carburetor.