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A nozzle air injection (NAI) system and algorithm for a fuel-injected engine for increasing the flow of air into the engine. In one embodiment the NAI system takes the form of a kit comprising a controller, engine speed and throttle position sensors, a power regulator, an air compressor adapted to b

A nozzle air injection (NAI) system and algorithm for a fuel-injected engine for increasing the flow of air into the engine. In one embodiment the NAI system takes the form of a kit comprising a controller, engine speed and throttle position sensors, a power regulator, an air compressor adapted to be rotatably driven by an electric motor to drive additional air into the engine. The controller includes a processor and sufficient memory to perform the logic steps necessary to selectively operate the compressor. In one embodiment, the controller checks the status of engine speed and throttle deflection and if the engine speed is equal or less than a first threshold value, and if the throttle deflection is greater than or equal to a second threshold value the controller instructs the regulator to send electrical power to the motor to drive the compressor to provide additional air to the engine.

대표청구항 ▼

1. A nozzle air injection system adapted to selectively provide compressed air to a fuel-injected engine, thereby improving power output from the engine, comprising:a controller, wherein a control algorithm is stored on said controller, further wherein said controller operates in response to said co

1. A nozzle air injection system adapted to selectively provide compressed air to a fuel-injected engine, thereby improving power output from the engine, comprising:a controller, wherein a control algorithm is stored on said controller, further wherein said controller operates in response to said control algorithm;an engine speed sensor in communication with said controller, wherein said engine speed sensor collects engine speed data and communicates said speed data to said controller;a throttle position sensor in communication with said controller, wherein said throttle position sensor collects throttle position data and communicates said throttle position data to said controller;a power regulator in communication with and under the control of said controller;an electric motor in electrical communication with said power regulator; andan air compressor connected to said electric motor,wherein said controller is adapted to communicate instructions to said power regulator under the direction of said control algorithm,wherein said power regulator is in communication with an electrical power source, said regulator is adapted to send or cut off a varying electrical current to said motor according to instructions received from said controller. 2. The nozzle air injection system according to claim 1, wherein said controller further comprises memory and a microprocessor for running said control algorithm. 3. The nozzle air injection system according to claim 1, wherein an engine temperature sensor is in communication with said controller. 4. The nozzle air injection system according to claim 1, wherein said compressor comprises at least one set of variable pitch blades operably coupled to at least one actuator, wherein said at least one actuator is operably linked to said controller, and wherein said at least one actuator is adapted to respond to control instructions received from said controller. 5. The nozzle air injection system according to claim 1, further comprising a compressor bypass passage adapted to accommodate a gate, wherein said gate is operably coupled to an actuator, wherein said actuator is in communication with and under the control of said controller. 6. The nozzle air injection system according to claim 1, wherein said controller and regulator are integrated to form a combined controller-regulator member. 7. The nozzle air injection system according to claim 1, wherein the nozzle air injection system is fitted to a fuel injected engine to provide a fuel injected engine and nozzle air injection system combination. 8. The nozzle air injection system according to claim 7, further comprising an air cooler disposed between the compressor and the fuel injected engine to provide air cooling. 9. A method for selectively compressing air to provide additional air to a fuel injected internal combustion engine to improve power output thereof, comprising the steps of:receiving an engine speed input;receiving a throttle deflection input; andsupplying electrical power to an electric motor if said engine speed is equal or below a predetermined engine speed threshold value and if said throttle deflection is equal or above a predetermined throttle deflection threshold value;wherein said motor is coupled to an air compressor such that when electrical power is supplied to said motor it drives said air compressor which compresses air for delivery to a fuel injected internal combustion engine thereby improving power output thereof. 10. The method for selectively compressing air according to claim 9, further comprising the additional steps of receiving an engine temperature input, wherein the step of supplying electrical power to an electric motor occurs when said engine speed is equal or below a predetermined engine speed threshold value and if said throttle deflection is equal or above a predetermined throttle deflection threshold value and if said engine temperature is within a predetermined range of temperature. 11. The method for s electively compressing air according to claim 9, further comprising the additional step of reducing the surface contact area of the compressor blades with respect to airflow whenever electric motor coupled to the air compressor is not receiving electrical power. 12. A method for selectively compressing air to provide additional air to a fuel injected internal combustion engine to improve power output thereof, comprising the steps of:providing a controller, wherein a control algorithm is stored on said controller, further wherein said controller generates instructions in response to said control algorithm;providing an engine speed sensor in communication with said controller, wherein said engine speed sensor collects engine speed data and communicates said speed data to said controller;providing a throttle position sensor in communication with said controller, wherein said throttle position sensor collects throttle position data and communicates said throttle position data to said controller;providing an air compressor driving means;providing a decoupling means;providing an actuator in communication with said decoupling means and said controller; and providing an air compressor connected to said driver means, wherein said driver means drives said air compressor to provide compressed air when engaged to said air compressor,wherein said controller is adapted to communicate instructions to said actuator under the direction of said control algorithm, andwherein said controller instructs said actuator to engage said driver means to drive said air compressor to compress air if said engine speed is equal or below a predetermined engine speed threshold value and if said throttle deflection is equal or above a predetermined throttle deflection threshold value otherwise said decoupling means disengages said driving means from said air compressor thereby stopping said air compressor compressing air.