Abstract: A water injection amount control system for a fuel and water injection engine, comprises running state detecting unit for detecting the running state of the engine; an EGR system for recirculating part of exhaust gas of the engine to a combustion chamber of the engine; EGR system operating state detecting unit for detecting or estimating the operating state of the EGR system; water injection amount regulating unit for regulating an amount of water to be injected to the combustion chamber of the engine; and control unit for controlling the operation of the water injection amount regulating unit: wherein the system is arranged to have water injection amount setting unit for deciding a water injection amount based on information from the running state detecting unit and on the operating state of the EGR system detected by the EGR system operating state detecting unit, so that the control unit controls the operation of the water injection amount regulating unit based on the water injection amount decided by the w

Abstract: A fuel and water injection system for an internal combustion engine in which a computer calculates the minimum fuel requirements to meet power demand and the water injection requirements to achieve smooth operation without engine knock or pre-ignition; and triggers electronic injectors mounted in the intake manifold or adjacent to the cylinders to achieve those requirements. Fuel and water injectors are connected to constant-pressure fluid supply systems such that the rate of delivery of liquid to the inlet manifold or cylinder is based on the pulse width and pulse repetition rate of the signals sent from the computer. The fuel/air ratio ranges from the minimum requirement to support the combustion process to the maximum which can be burned cleanly and efficiently. Fuel injection rates within these limits are based on the operator's demand for power as represented by his positioning of the throttle plate using the accelerator.

Abstract: A water injection system reduces nitrous oxide emissions in turbocharged internal combustion engines driving electrical power generators. A current-activated relay located in switchgear associated with the generator becomes energized asserted when the current output of the generator exceeds a value that corresponds to predetermined NOx permissible emissions level. The output of the relay activates a motor starter which controls a rotary vane pump. The pump draws distilled water from a water tank, forcing the water through a particle strainer, an adjustable flow regulator, a solenoid, a flow meter, and backflow check valves, to water injection nozzles located in the combustion airstream immediately after a turbocharger compressor. The nozzles provided include fine-mesh strainers and atomize the water to 100 micron particle sizes, and distribute the water particles in an 85-degree spray cone pattern.

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 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 fluid injection system for an internal combustion engine, including both spark-ignition and compression-ignition engines, includes a nozzle for injecting a finely divided spray of fluid, such as water, a water solution, or other combustion enhancing fluid, into the intake air of the engine in response to a flow of atomizing air. The nozzle is connected to a fluid supply and to the outlet an air injection pump that is connected to an electric drive motor. The drive motor is controlled by an electronic control circuit to provide the atomizing air to the nozzle in response to the fuel flow to the engine and in response to one or more engine parameters including parameters provided by a temperature sensor, a throttle position sensor, and/or a detonation sensor.

Abstract: A flow control system for metering fluid flow in various amounts to a desired discharge point includes electrical signal responsive valves correspondingly mounted in a series of flow lines and switchable between open and close positions. An electrical control means is disclosed for selectively opening the valves individually or simultaneously in groups having relay switch means for operating each of the valves and a triggering means for selectively activating the valve relay switch means as a function of the step positions of a flow regulator device. The invention is especially useful for metering diluent fluid to an emulsification apparatus in the desired proportion as a result of the diesel engine fuel flow set by a locomotive throttle.

Abstract: An apparatus (10) for installation in an automobile (12) to generate steam with heat from the exhaust of an engine (14) is provided. The steam is generated at a sufficient pressure for entry into the combustion chambers of the engine to increase the power output of the engine. The apparatus includes a water storage unit (20) and a steam generator (26) for generating steam with the water from the unit through transfer of heat from combusted gases in the exhaust system (18). The steam travels through steam inlet manifolds (30, 32) for entry into the combustion chambers. The entry is controlled by a cylinder injection timing valve assembly (38) timed to the operation of the engine to enter the steam during the power stroke. A steam throttling control valve assembly (50) is provided to throttle the steam input to the cmbustion chambers.

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: A water-augmented fuel and air supply system for an internal combustion engine which draws heated air into its intake manifold through two paths, one carrying the bulk of air, referred to as leaning air, drawn directly into the manifold, and the other providing a smaller stream of mixing air through a fuel and water vaporizer heated by engine exhaust. In the vaporizer, the heated mixing air flow acts upon a pool of liquid water and fuel to stimulate vaporization thereof. As engine temperature and engine exhaust temperature rise, the maximum vaporization stimulation effect of the impinging mixing air is no longer needed and is correspondingly reduced. The result is to permit cold starts and to provide a lean mixture of vaporous mixing air conducive to sustained economical engine operation, and increased power availability from the engine without incurring excessive rise in engine operating temperatures.

Abstract: An improved carburetor (20) for delivering one combustible fuel and a liquid, or two combustible fuels from separate reservoirs (50), (500), to the central portion of a hollow spray bar (98) for discharge into carburetor venturi (30) includes substantially closed metering chambers (90), (508) disposed in fuel flow communication from the reservoirs and suspended from opposite ends of spray bar (98). Fuels from metering chambers (90), (500) travel through variable width grooves (154), (548) formed in arcuate metering inserts (148), (544) into the lower end portion of corresponding metering arms (92), (540) and then into the hollow interior of spray bar (98).

Abstract: The present disclosure shows a system for providing a continuous supply of at least partly distilled water to an internal combustion engine for inclusion in the air-fuel mixture passing through the carburetor, in order to increase the efficiency of the engine to decrease fuel consumption, to reduce emissions and to prevent knocking. The water may be mixed and emulsified with the liquid fuel before these components enter the carburetor, or the fuel may be introduced to the carburetor separately, or the water and the fuel may be introduced together without a preliminary mixing. The partially distilled water, that is free of solid ingredients, is produced continuously during engine operation by diverting a portion of the exhaust gas from the engine to an air cooled condenser to condense water therefrom and a controlled amount of water is passed to the engine. Means are provided for variably proportioning the quantity of water delivered to the quantity of liquid fuel passing to the carburetor.

Abstract: An apparatus for injecting steam into an internal combustion engine including an exhaust manifold and an intake manifold, which has a control valve which receives and controls a flow of water supplied from a source or reservoir of same, and from which the flow of water controlled by the valve is delivered to an evaporator adapted to receive the exhaust gases of the engine and to convert the water passing therethrough into steam, which is thereafter delivered to the intake manifold of the internal combustion engine, increasing the engine power and reducing the contaminants in the exhaust gases therefrom.

Abstract: Water, with chemical additives and metallic salts therein, is injected into an internal combustion engine, such as for automobiles, to reduce production of carbon monoxide and by reducing the amounts of oxides of nitrogen. Metallic salts may be added to tap water by use of an electrolysis cell connected to the engine's battery or alternator.

Abstract: Improved apparatus for injecting vapors, such as water vapor in the form of low temperature-low pressure steam, into the intake manifold of an internal combustion engine. A controlled flow of air is drawn through a vapor generator by the intake manifold vacuum and the resulting air-vapor mixture is discharged through a nozzle into the intake manifold. The vapor generator contains a level controlled body of liquid for forming the vapor. Air enters the generator at the bottom of the liquid and rises through the liquid past a heater and a dispersion member which disperses the air into small bubbles. The heater is operated from the engine cooling system and heats the air and liquid sufficiently for generating steam at the subatmospheric pressures available from the intake manifold. The resulting steam-air mixture is injected into the intake manifold for controlling combustion. In a modified embodiment, liquid is also injected directly into an engine carburetor during acceleration.

Abstract: Apparatus for supplying an air-vapor mixture to an air intake chamber in communication with an air intake passageway of a carburetor under acceleration conditions of an internal combustion engine. The air intake chamber has a valved inlet opening through which normal atmospheric air is supplied to the carburetor under normal operating conditions. Upon operation of the accelerator control means, a steam or vapor operated air injection means is actuated. The steam or vapor is admixed in the air injector nozzles with the mixture being discharged into the air intake chamber. This increases the pressure in the chamber causing the valve in the atmospheric air inlet to close. The air-vapor mixture then becomes the sole air supply to the air intake passage of the carburetor.