Abstract: An injection gate (44,144,244,344) for high pressure, high velocity secondary fluid for admixture of an atomized spray (80,180) thereof with another or primary fluid that atomizes the other fluid. The secondary fluid may be an accelerant and the primary fluid may be a low pressure fuel/air mixture in a fuel injection arrangement for an internal combustion engine. An injection billet (10,110,210,310) for an engine is interposed between the carburetor (12) and the manifold (14), with an array of such injection gates (44,244,344) paired with an array of fuel/air gates (34,234,334) about an aperture coinciding with a throttle bore (60,160,260,360) and evenly balancing the spray about the throttle bore, creating a halo effect of atomized admixture of accelerant/fuel. The injection of accelerant is directed sharply downwardly toward the center of the bore and through the injected fuel stream, atomizing the fuel thereof for a high efficiency boost of horsepower.

Abstract: At a location near an entrance to a combustion chamber, oxygen in air that is passing from an upstream path into the combustion chamber is redistributed so that an enriched supply of oxygen is available at a combustion location in the combustion chamber.

Abstract: A low-fuel consumption and low-pollution combustion system supplies an engine with a mixture, in which oxygen contained in air is separated from nitrogen through a PSA (pressure swing adsorption) whereby oxygen having purity above 95% and a fuel mixture is fed into and burned in the combustion chamber obtaining a desired engine output with low-fuel consumption. Nitrogen is previously removed so that nitride oxide can be minimized during combustion procedure and CO and toxic gas derived from incomplete combustion can be minimized. The system obtains high engine output and low-fuel consumption by reducing toxic gas derived from incomplete combustion. The system includes an oxygen separator for separating oxygen from nitrogen by introducing external air into adsorption towers with predetermined pressure while storing the oxygen separated from the nitrogen in an oxygen storage tank and exhausting the nitrogen.

Abstract: The instant invention provides an apparatus and system for cooling the air charge of an internal combustion engine. More specifically, the instant invention provides an air-induction system suitable to provide cooled air charges to turbocharged, supercharged or naturally aspirated internal combustion engines to increase power output while reducing engine emissions. The system utilizes gaseous fuel stored as a liquid wherein the liquefied gaseous fuel is vaporized and warmed at least partially with heat removed from the intake air charge supplied to the engine from the turbocharger or supercharger. In a preferred embodiment, the compressed intake combustion air is first cooled in an aftercooler against an ambiently cooled coolant and is subsequently cooled further by the chiller of the instant invention which utilizes the change in phase, between liquid and gas, of the alternative fuel to cool the incoming air charge.

Abstract: A nitrous oxide plate system having a plate adapted to fit in an intake pathway of an internal combustion engine. The plate has at least one central passage therethrough, and this passage forms a portion of the intake pathway when the plate is installed in the engine. The plate system also has a first spray bar port passing into the central passage, and at least two spray bars that are adapted to be interchangeably installed in the first spray bar port. The at least two spray bars include a first spray bar having a first plurality of distribution orifices having a first total area, and a second spray bar having a second plurality of distribution orifices having a second total area. The second total area is different from the first total area. An interchangeable spray bar for a nitrous oxide plate system is also provided.

Abstract: A gas-capped nitrous oxide system configured to supply nitrous oxide to a combustion engine comprises a nitrous bottle with a liquid and vapor mixture of pressurized nitrous oxide, an auxiliary bottle with pressurized capping gas, and a variable-flow regulator that fluidly interconnects the bottles. The auxiliary bottle and regulator cooperatively supply capping gas to keep the liquid portion of the nitrous oxide in the liquid phase as the nitrous oxide evacuates the nitrous bottle. The regulator is configured to supply a substantially constant discharge pressure while varying the capping gas flow rate so that the system provides a substantially constant nitrous oxide flow rate to the engine.

Abstract: An intake manifold of an engine has a common pipe disposed downstream of a throttle valve, a plurality of first through fourth branch pipes connected to the common pipe, and a bypass pipe connected between the common pipe and the first through fourth branch pipes. The bypass pipe has a plurality of branches connected respectively to the first through fourth branch pipes. An amount of intake air flowing through the intake manifold is detected by an air flow meter disposed in the bypass pipe.

Abstract: A fuel is aerated in a fuel supply and gasification system for more efficient combustion in a combustion chamber. The gasification system includes a mixing device for mixing a liquid fuel with at least one gas. A gas source feeds the gas to a gas feeding nozzle and through the nozzle further to the mixing device, wherein the gas is mixed with the liquid fuel for forming a liquid fuel/gas bubbles mixture. A low-pressure fuel pump connected with the mixing device by a liquid fuel supply line feeds liquid fuel from a fuel reservoir to the mixing device at pressure P1 higher than the gas pressure P2. A prepared liquid fuel/gas bubbles mixture is fed into a high-pressure fuel pump where the liquid fuel/gas bubble mixture get compressed to the state of homogeneous liquid and further is injected into a combustion chamber for instance of internal combustion engine at a pressure P4 that is higher than a pressure P3 in the combustion chamber at the moment of injecting fuel in it.

Abstract: A spark ignited gaseous fuel engine including an exhaust gas recirculation system and method for operating a gaseous fuel engine are provided. The exhaust gas recirculation system has an adjustable flow and is operable to supply exhaust gas to at least one engine cylinder. The engine further includes means for determining a value indicative of a charge density of a combustion mixture that includes gaseous fuel, air and exhaust gas supplied to the at least one cylinder, and adjusting a flow quantity through the exhaust gas recirculation system based at least in part on the value. The charge density may permit the controller to set a NOx output rate from the engine via a pre-determined correlation between charge density and NOx output.

Abstract: The present invention relates to a system (1) for supplying an air-fuel mixture to a two-stroke internal combustion engine (2), comprising a carburettor (3) having a throttle valve (4) and a choke valve (5). The system further has a transfer passage (6) between a crankcase (7) chamber and a combustion chamber (8) of said engine (2). A supply conduit for additional air (9) is having an air valve (10) for said additional air, and said supply conduit for additional air (9) is being adapted to discharge the additional air into the top portion of said transfer passage (6) during a portion of a cycle of said two-stroke internal combustion engine (2). Further the air valve (10) is controlled by the throttle valve (4) so as to affecting a air valve opening state when said throttle valve opening state is affected, and the opening state of said air valve (10) is delimited by a choked state of said choke valve (5) regardless of the throttle valve opening state.

Abstract: A compression ignition internal combustion engine system combusts DME as fuel using high fuel injection pressures (e.g., above 800 bar) and low oxygen concentrations (e.g., below 17%, through high levels of EGR), thereby resulting in simultaneously very low NOx and PM engine-out emissions.

Abstract: A nitrous-oxide system for an engine includes a nozzle coupled to a nitrous-oxide bottle by a nitrous-oxide line. A nitrous-oxide valve is coupled to the nitrous-oxide line between the nitrous-oxide bottle and the nozzle. A control switch, operatively coupled to the nitrous-oxide valve. A pressure regulator, coupled to the nitrous-oxide line between the nitrous-oxide bottle and the nozzle, and is capable of regulating pressure of the nitrous-oxide to lower than 500 psi. The nozzle can be positioned adjacent a carburetor inlet to force nitrous-oxide into a carburetor throat.

Abstract: A system includes an electrolysis unit capable of producing hydrogen and oxygen gases and interoperably connected to a diesel engine. The amount of amount of hydrogen and oxygen gases produced by the electrolysis unit is proportionally correlated to the stroke type and stroke displacement of the diesel engine. The system also includes a power supply system that is interoperably connected to the electrolysis unit. The power supplied by the power supply system is proportional to an amount of hydrogen and oxygen to be supplied to the diesel engine. The system also includes a safety mechanism interoperably connected to the power supply system so as to terminate power to the electrolysis unit in response to cessation of operation of the diesel engine.

Abstract: A secondary air supplying system of an internal combustion engine includes secondary air valve chambers to control the supply of secondary air. The secondary air valve chambers are formed in a cylinder-head cover that covers a cylinder head from above. In such a secondary air supplying system, a cam shaft and a rocker-arm shaft are offset fi-om a cylinder axis L and are disposed at respective sides of the cylinder axis L from each other In addition, the secondary air valve chambers are formed at the rocker-arm-shaft side of the cylinder axis L. With this configuration, it is possible for the secondary air valve chambers formed in the cylinder-head cover to be disposed as close as possible to a cylinder head, and the internal combustion engine can be made more compact in size.

Abstract: A disposable gas system that includes: a reservoir including an opening and an orifice; a disposable gas container connected to the reservoir through the opening; and the orifice connected to an internal combustion engine.

Abstract: A power system is provided having a power source, a first power source section with a first intake passage and a first exhaust passage, a second power source section with a second intake passage and a second exhaust passage, and an oxygen separator. The second intake passage may be fluidly isolated from the first intake passage.

Abstract: In an internal combustion engine with an air separation unit and a method of realizing such an internal combustion engine, the air separation unit is able to be fed by intake air compressed by a charging unit and cooled by a charged air cooler. The internal combustion engine can at least periodically be fed with a retentate, provided by the air separation unit, having such a composition that, in comparison to normal, it is oxygen enriched. The air separation unit is connected to the outlet of the charged air cooler, and compressed intake air from the charging unit undergoes purification that includes the separation of fluid and/or solid contents before being fed into the air separation unit.

Abstract: Method of controlling the combustion of an internal-combustion engine, in particular a direct-injection supercharged engine, notably of gasoline type, wherein the engine comprises at least one cylinder (12) with a combustion chamber (14) within which a compression stage takes place, followed by a stage of combustion of a fuel mixture by a spark-ignition means (34), characterized in that it consists in measuring a quantity related to at least one parameter representative of the state of the fuel mixture during said stages; in determining a value that depends on the amplitude of the measured quantity; in comparing the determined value with at least one threshold value representative of the quantity related to said parameter representative of the conventional state of the fuel mixture during said stages; in detecting the start of an abnormal combustion when the determined value exceeds said threshold value and when the ignition means is not actuated; in controlling the course of the abnormal combustion detected

Abstract: A nitrous-oxide system for an engine includes a nozzle coupled to a nitrous-oxide bottle by a nitrous oxide line. A nitrous-oxide valve is coupled to the nitrous-oxide line between the nitrous-oxide bottle and the nozzle. A control switch, operatively coupled to the nitrous-oxide valve. A pressure regulator, coupled to the nitrous-oxide line between the nitrous-oxide bottle and the nozzle, and is capable of regulating pressure of the nitrous-oxide. The nozzle can be positioned adjacent a carburetor inlet to force nitrous-oxide into a carburetor throat.

Abstract: An engine includes a cylinder, an exhaust port, an exhaust valve, a secondary air supply pipe, and an electromagnetic valve. The electromagnetic valve is opened in a predetermined time period after a point in time when a lift amount of the exhaust valve reaches about half a maximum value during a time period in which an opening of the exhaust port is opened. This causes air to be supplied from a secondary air supply pipe to the exhaust port.

Abstract: The present apparatus calculates a mass ma (mass ratio ma/mf) of mixing-gas-forming cylinder interior gas, which is a portion of cylinder interior gas to be mixed with a forefront portion of injected fuel vapor having a mass of mf, on the basis of a predetermined empirical formula. Subsequently, under the assumption that heat exchange with the outside does not occur, the apparatus calculates an adiabatic gas mixture temperature Tmix of the gas mixture forefront portion on the basis of the heat quantity of the fuel vapor having a mass of mf and the heat quantity of the mixing-gas-forming cylinder interior gas having a mass of ma. Subsequently, in consideration of an amount of heat that the gas mixture forefront portion receives from peripheral cylinder interior gas mainly via a circumferential surface thereof, the apparatus estimates a final gas mixture temperature Tmixfin of the gas mixture forefront portion (i.e.

Abstract: A multicylinder engine intake system includes: first and second throttle bodies; bypasses provided in the first and second throttle bodies and having downstream ends opened to intake paths on downstream sides of throttle valves; and a common bypass control valve which opens and closes the bypasses. The bypass control valve is mounted on the first throttle body. Downstream ends of the bypasses opened in the first and second throttle bodies are formed as throttle holes. The diameter of the throttle hole on the side of the first throttle body is smaller than the diameter of the throttle hole on the second throttle body. Thus, it is possible to equalize amounts of first idling air supplied to a plurality of cylinders irrespective of arrangement of the cylinders in an engine even if lengths of a plurality of bypass downstream paths are not equal to each other, while the bypass control valve is mounted on any of the throttle bodies.

Abstract: A method and apparatus for reducing the emissions and improving the performance of an internal combustion engine (40). An input air stream is separated into an oxygen-enriched air stream and a nitrogen-enriched air stream. The nitrogen-enriched air stream is received by a holding chamber (35). The oxygen-enriched air and a combustible fuel are provided to a combustion chamber (45) of the internal combustion engine (40) and a combustion process is initiated. After a predefined time delay, a volume of nitrogen-enriched air is provided from the holding chamber (35) to the combustion chamber (45) to be used during the rest of the combustion process.

Abstract: In this invention, there is provided a method for reducing NOx emission from an internal combustion engine designed to produce a given amount of power and a method for improving fuel efficiency by providing an intake stream of oxygen-enriched air and keeping the amount of power output the same so that the combustion temperature in the engine is lower.

Abstract: A fuel control system for an internal combustion engine having an intake passage, a compressor provided in the intake passage, a throttle valve disposed downstream of the compressor, a bypass passage connecting an upstream side of the compressor to a downstream side of the compressor, and an air bypass valve provided in the bypass passage. An intake air flow rate of the engine is calculated based on the engine rotational speed and the intake pressure, which are detected when the air bypass valve is determined to be in the opening operation state. An amount of fuel supplied to the engine is then controlled according to the calculated intake air flow rate.

Abstract: A system for reducing pollutant emissions may include an engine, an intake system fluidly connected to the engine for supplying air into the engine, and a carbon dioxide supply fluidly connected to the intake system. The system may further include a controller operatively associated to the carbon dioxide supply and the intake system. The controller may be configured to control the ratio of the carbon dioxide to the intake air introduced into the engine.

Abstract: An integral vacuum generator system for an internal combustion engine includes a throttle body and intake manifold defining a bypass passage which is connected with a vacuum manifold by both a venturi and a direct vacuum supply passage. Vacuum flow through the venturi and the direct vacuum supply passage are controlled by check valves.

Abstract: In accordance with embodiments of the present invention, a system is provided comprising an oxygen-enrichment reverse osmosis unit coupled to an intake of an internal combustion engine. Ambient air is supplied to the reverse osmosis unit via an ambient-air inlet and oxygen-enriched air is output via an oxygen-enriched outlet. The oxygen-enriched outlet is coupled to the intake of a combustion chamber of the internal combustion engine. Providing oxygen-enriched air relative to ambient air to the internal combustion engine allows for reducing the size of the combustion chamber while providing equivalent power, resulting in a smaller engine. At the same time, the smaller engine saves consumption of fuel due to lower engine weight and more complete combustion. The smaller engine is also cheaper to build because it requires less material for fabrication.

Abstract: A boost system for an engine, comprising an engine having at least a cylinder; a fuel injector coupled to said cylinder; a compression device coupled to said engine; a compressed air storage device coupled to said compression device and configured to deliver compressed air to an air flow amplifier device located in the inlet air passageway to said cylinder; and a controller to adjust an amount of fuel injection to account for variation of air delivered to said cylinder from said flow amplifier device.

Abstract: The present invention is a supplementary control valve device including a valve body, which may be reversibly displaced in a guide, in the direction of the longitudinal axis, between an opening solenoid and a closing solenoid. The magnetic yoke of the opening solenoid includes at least one extension, with direct contact with a web, connected to the guide on the end thereof facing away from the extension.

Abstract: A system for retrofitting an internal combustion engine to use a proportion of hydrogen gas and existing fossil fuel is disclosed. The system is comprised of a source of hydrogen gas and means for delivering hydrogen gas to the combustion chamber of the engine. The engine operating parameters are adjusted and the delivery of hydrogen is controlled to provide selective introduction of hydrogen gas throughout the engine's operating cycle. The source of hydrogen gas can comprise an onboard hydrogen reformer, or hydrogen and carbon monoxide can be reformed inside the cylinder from an on board carrier of hydrogen. A single point injector placed at the intake manifold in close proximity to the engine intake valve can be used to mix the hydrogen gas to the air/fossil fuel mixture or sequential injectors can deliver hydrogen in close proximity to each engine intake valve, or directly into each cylinder.

Abstract: A supplemental fuel supply system for use in an internal combustion engine having a fuel supply and using an on-demand supplemental oxygen supply includes a fuel pump and a supplemental oxygen supply regulator. The pump has a fuel supply and a fuel discharge. The pump includes an inlet for feed from the supplemental oxygen supply. The pump is driven by a portion of the supplemental oxygen supply such that when a demand is made on the on-demand supplemental oxygen supply to supplement oxygen to the internal combustion engine, a portion of the supplemental oxygen is introduced into the fuel pump to drive the fuel pump to discharge fuel therefrom to the internal combustion engine. The discharge from the supplemental oxygen supply regulator supplies both the fuel pump and the internal combustion engine.

Abstract: A fuel control system for an internal combustion engine having an intake passage, a compressor provided in the intake passage, a throttle valve disposed downstream of the compressor, a bypass passage connecting an upstream side of the compressor to a downstream side of the compressor, and an air bypass valve provided in the bypass passage. An intake air flow rate of the engine is calculated based on the engine rotational speed and the intake pressure, which are detected when the air bypass valve is determined to be in the opening operation state. An amount of fuel supplied to the engine is then controlled according to the calculated intake air flow rate.

Abstract: A wildland fire truck engine emergency combustion oxygen supply apparatus for the prevention of stalling of the engine in an oxygen depleted environment. The apparatus has a storage tank mounted on the vehicle for the storage of oxygen, nitrous oxide, or air, a feed line fluidly connecting the storage tank to the engine air intake, a feed valve, and a manual or automated feed valve actuator.

Abstract: A multicylinder engine intake system includes: first and second throttle bodies; bypasses provided in the first and second throttle bodies and having downstream ends opened to intake paths on downstream sides of throttle valves; and a common bypass control valve which opens and closes the bypasses. The bypass control valve is mounted on the first throttle body. Downstream ends of the bypasses opened in the first and second throttle bodies are formed as throttle holes. The diameter of the throttle hole on the side of the first throttle body is smaller than the diameter of the throttle hole on the second throttle body. Thus, it is possible to equalize amounts of first idling air supplied to a plurality of cylinders irrespective of arrangement of the cylinders in an engine even if lengths of a plurality of bypass downstream paths are not equal to each other, while the bypass control valve is mounted on any of the throttle bodies.

Abstract: A method for increasing the performance of an automobile engine and apparatus thereof is provided, wherein both ends of a pipe interconnecting an idle motor and a throttle valve and an air filter are respectively connected to tubes made of rubber. The pipe is made of robust material. Air current resistance members are mounted in the pipe and each of the tube receives a spring. By using the method and apparatus, vortical flow is caused in the pipe so as to precipitate the flow of the air current and therefore enhance the performance of automobile.

Abstract: A 4-cycle engine for a motorcycle has a secondary-air supplier for supplying secondary air to exhaust ducts. The engine includes a recess, which is depressed toward the engine, on a cylinder-head cover for holding a control valve of the secondary-air supplier. The recess and the control valve are positioned between two innermost cylinders of the array of the cylinders. Check valves, which are connected to downstream regions of the control valve, are each disposed between two outermost cylinders of the array of the cylinders.

Abstract: A water injection system (WIS) for diesel engines that reduces NOx, PM and CO2 emissions is provided. Water is injected into the combustion air stream before cylinders in a predetermined proportion to fuel. The present invention utilizes a special water purification element, an oscillating pump, an electronic means to control both water flow and the size of water droplets, a means to prevent water from freezing in cold ambient temperatures, a plurality of special sensors to control water flow in response to rapid load variation, and a means for automatically switching between on and off operations.

Abstract: This invention is a nitrous oxide delivery system to improve engine power in which the nitrous oxide leaves its storage bottle as a vapor rather than conventional liquid delivery systems in which it leaves as a liquid. This system can therefore use a relatively simple pressure regulator and fixed orifice to maintain an essentially constant nitrous oxide mass flow rate over a wide range of storage bottle pressure. The nitrous oxide which enters the engine does not contain any ice crystals and will not cause icing, therefore allowing introduction of the nitrous virtually anywhere in the engine's induction tract.

Abstract: An air induction manifold has manifold air passages. A carrier has air passages to communicate air from the manifold air passages to an engine. The carrier has a first sealing interface for a manifold and a second sealing interface for an engine cylinder. The first sealing interface seals the communication of air between the manifold air passage and the carrier air passage. A valve is mounted to the carrier that controls the communication of air through the carrier air passage.

Abstract: A power generator provides power with minimal CO2, NOx, CO, CH4, and particulate emissions and substantially greater efficiency as compared to traditional power generation techniques. Specifically nitrogen is removed from the combustion cycle, either being replaced by a noble gas as a working gas in a combustion engine. The noble gas is supplemented with oxygen and fuel, to provide a combustion environment substantially free of nitrogen or alternatively working in 100% oxygen-fuel combustion environments. Upon combustion, Very little to no nitrogen is present, and thus there is little production of NOx compounds. Additionally, the exhaust constituents are used in the production of power through work exerted upon expansion of the exhaust products, and the exhaust products are separated into their constituents of noble gas, water and carbon dioxide.

Abstract: An oxygen-detecting voltage controlling device includes an air filter, an electromagnetic valve, and a controlling circuit board, which is electrically connected to an engine computer for obtaining a current rotating speed value of an engine and sending a stable voltage to the engine computer to stop the engine computer from making correction by increasing amount of petrol injected through an injection nozzle; two adjustment knobs are fitted on the oxygen detecting and voltage controlling device and connected to the controlling circuit board for setting first and second rotating speed values respectively; the controlling circuit board will be activated and start sending a stable voltage to the engine computer immediately after rotating speed of the engine reaches the first rotating speed value; the controlling circuit board will be turned off and stop sending a stable voltage immediately after rotating speed of the engine reaches the second rotating speed value.

Abstract: A method for increasing the power output of an internal combustion engine is presented. The increase to the power output of the engine may be accomplished by injecting a pressurized oxygen enhancer, such as nitrous oxide, into the air intake of the internal combustion engine. A portion of the pressure derived from the injection is captured by a pressure port. The captured pressure is delivered to the fuel control device of the internal combustion engine such as the float bowl of a carburetor causing an increased quantity of fuel to enter the engine. A manifold for delivering nitrous oxide or another oxygen enhancer to the air intake of an internal combustion engine is also presented.

Abstract: A nozzle for mixing and delivering two or more components and method of use thereof. One variation provides a nozzle that injects a first component, such as fuel, into a flow plume for a second component, such as nitrous oxide, for use with combustion engines. The nozzle receives two or more separate flows of components (e.g., gases and/or liquids), one of which is pressurized so as to be outputtable from the nozzle as a plume. The plume is directed so as to encompass an output extension for the other component near the plume edge, thereby enhancing mixture of the components. In addition, the plume produces a low pressure draw of the second component from the output extension, the low pressure draw varying with plume velocity, in turn varying with delivery pressure of the first component. The plume flow of the second component also atomizes the first component, further enhancing mixing.

Abstract: In one example, a system for an engine having an intake system and an exhaust system is described. The system comprises: an airflow sensor coupled to the intake system; an air pump having at least an inlet side and an outlet side, said inlet side having a first coupling to the intake system downstream of said airflow sensor, said outlet side having a second coupling to the exhaust system; and a controller coupled to the engine, said controller, during operation, identifying whether degradation has occurred to at least one of said first and second couplings, and providing an indication of said identified degradation. Various other examples are also disclosed.

Abstract: This invention describes a method which can be used to improve the output torque and resulting horsepower of internal combustion engines while lowering the overall pollution experienced with these engines. This invention will allow smaller displacement engines to be used in transportation vehicles without sacrifice of driveability. In some applications existing high horsepower engines can be boosted to even higher output levels. This invention describes an on board system that separates nitrogen (N2) from air leaving an oxygen (O2) enriched air that is used in combination with fuel to improve operation of the engine during its various modes of operation (start-up, acceleration, cruise, deceleration and idle).

Abstract: The present invention discloses an air-entrainment mechanism for carbureted engine. The mechanism includes a plunger valve controlled by a solenoid. The solenoid is powered by a battery with a switch electrically coupled thereto. The plunger valve is interconnected to the carburetor to allow additional air entrainment. The solenoid is coupled to the valve for opening and closing the valve. The switch electrically couples the solenoid to the battery to activate the solenoid for movement of the valve. The switch disclosed herein includes a temperature sensor and an engine-running sensor. The switch is then closeable when the temperature sensor detects an engine temperature within a predetermined range as long as the engine is not already running.

Abstract: A method and apparatus for reducing the emissions and improving the performance of an internal combustion engine (40). An input air stream is separated into an oxygen-enriched air stream and a nitrogen-enriched air stream. The nitrogen-enriched air stream is received by a holding chamber (35). The oxygen-enriched air and a combustible fuel are provided to a combustion chamber (45) of the internal combustion engine (40) and a combustion process is initiated. After a predefined time delay, a volume of nitrogen-enriched air is provided from the holding chamber (35) to the combustion chamber (45) to be used during the rest of the combustion process.

Abstract: A device for heightening engine efficiency is provided with a heat-insulating seat of engine having a plurality of air inlets communicable with oil-gas inlets. The air inlets are provided with a valve, and the heat-insulating seat is provided with a cam mechanism, which is connected to a carburetor control device by means of an operation piece. When the carburetor is operated to drive the cam mechanism to open the valve such that fresh air is allowed to enter into the engine, and the combustion efficiency can be thus heightened. As soon as the accelerator is stopped, the valve is closed automatically.

Abstract: This invention is a fuel valve used with a nitrous oxide delivery system to control supplemental fuel flow to an engine. This valve is typically a normally closed valve which is opened by application of nitrous oxide under pressure when the nitrous oxide delivery system is activated. This application of nitrous oxide pressure applies an internal force to a piston means whereby the valve is opened and supplemental fuel flows to the engine. Upon de-activation of the nitrous oxide system and subsequent decrease of nitrous oxide pressure, the valve closes and supplemental fuel flow to the engine ceases. This valve is smaller and less costly than electrical solenoid valves presently in common use.