System and method for measuring tip velocity of sprayed fuel
First Claim
1. A system for measuring tip velocity of sprayed fuel in an engine, comprising:
- a light source;
a lens for allowing light emitted from the light source to enter into a combustion chamber;
a Charge-Coupled Device (CCD) camera configured to provide images of dispersion shapes of the sprayed fuel; and
a control unit controlling the light source to emit light at least two times acquiring a single frame image of the dispersion shape of the sprayed fuel from the CCD camera, and calculating the tip velocity of the sprayed fuel by processing the acquired image.
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Accused Products
Abstract
A system and method for measuring tip velocity of sprayed fuel in an engine includes a light source, a lens, a Charge-Coupled Device (CCD) camera, and a control unit. The lens allows light, which is emitted from the light source, to enter into a combustion chamber. The CCD camera photographs the shapes of the dispersion of the sprayed fuel. The control unit causes the light source to emit light two times by controlling the light source, acquiring a single frame image of the shapes of the dispersion of the sprayed fuel by controlling the CCD camera, and calculates the tip velocity of the sprayed fuel by processing the acquired image.
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Citations
7 Claims
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1. A system for measuring tip velocity of sprayed fuel in an engine, comprising:
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a light source;
a lens for allowing light emitted from the light source to enter into a combustion chamber;
a Charge-Coupled Device (CCD) camera configured to provide images of dispersion shapes of the sprayed fuel; and
a control unit controlling the light source to emit light at least two times acquiring a single frame image of the dispersion shape of the sprayed fuel from the CCD camera, and calculating the tip velocity of the sprayed fuel by processing the acquired image. - View Dependent Claims (2, 3)
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4. A method for measuring tip velocity of sprayed fuel in an engine, comprising:
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emitting light toward a combustion chamber into which fuel is sprayed;
photographing dispersion shapes of the sprayed fuel during two emissions of light, and acquiring a single frame image of the dispersion shapes of the sprayed fuel from the two emissions of light;
dividing the single frame image into two images based on brightness values, obtaining boundaries between the dispersion shapes of the sprayed fuel and a background from the divided images, and obtaining a movement distance from the obtained boundaries; and
calculating the tip velocity of the sprayed fuel by dividing the movement distance by a time interval between the two light emissions. - View Dependent Claims (5, 6, 7)
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Specification