Low drag low noise devices using jet flow control
First Claim
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1. A low drag low noise device having a lengthwise axis, the low drag low noise device comprising:
- an outer body having a first end, and a second end, the outer body defining a first opening, a second opening, and an inner surface, the inner surface extending from the first opening to the second opening and defining a passageway; and
an inner body attached to the outer body and at least partially disposed within the passageway defined by the outer body, the inner body having a first end, a second end, and an outer surface;
wherein the inner surface of the outer body and the outer surface of the inner body define a channel within the passageway of the outer body, the inner surface of the outer body and the outer surface of the inner body configured to allow a fluid to pass through the channel from the first end of the outer body to the second end of the outer body such that the fluid exits the channel at the second end of the outer body at an angle that is directed toward said lengthwise axis of said low drag low noise device and away from the second end of the inner body.
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Abstract
Low drag low noise devices are described herein that use passive jet flow control to reduce the drag and noise created by devices (e.g., motor vehicle side view mirrors) while the devices travel through fluid. The low drag low noise devices described herein comprise a lengthwise axis, an outer body, and an inner body. The outer body and the inner body cooperatively define a channel through which fluid can pass during use.
39 Citations
18 Claims
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1. A low drag low noise device having a lengthwise axis, the low drag low noise device comprising:
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an outer body having a first end, and a second end, the outer body defining a first opening, a second opening, and an inner surface, the inner surface extending from the first opening to the second opening and defining a passageway; and an inner body attached to the outer body and at least partially disposed within the passageway defined by the outer body, the inner body having a first end, a second end, and an outer surface; wherein the inner surface of the outer body and the outer surface of the inner body define a channel within the passageway of the outer body, the inner surface of the outer body and the outer surface of the inner body configured to allow a fluid to pass through the channel from the first end of the outer body to the second end of the outer body such that the fluid exits the channel at the second end of the outer body at an angle that is directed toward said lengthwise axis of said low drag low noise device and away from the second end of the inner body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A low drag low noise device having a lengthwise axis, the low drag low noise device comprising:
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an outer body having a first end, and a second end, the outer body defining a first opening, a second opening, and an inner surface, the inner surface extending from the first opening to the second opening and defining a passageway; and an inner body attached to the outer body and at least partially disposed within the passageway defined by the outer body, the inner body having a first end, a second end, and an outer surface; wherein the inner surface of the outer body and the outer surface of the inner body define a channel within the passageway of the outer body, the inner surface of the outer body and the outer surface of the inner body configured to allow a fluid to pass through the channel from the first end of the outer body to the second end of the outer body such that the fluid exits the channel at the second end of the outer body at an angle that is directed toward said lengthwise axis of said low drag low noise device and away from the second end of the inner body, the angle being between about 0 degrees and about 50 degrees relative to an axis that contains the second end of the outer body and that is parallel to said lengthwise axis of said low drag low noise device. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A low drag low noise device having a lengthwise axis, the low drag low noise device comprising:
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an outer body having a first end, and a second end, the outer body defining a first opening, a second opening, and an inner surface, the inner surface extending from the first opening to the second opening and defining a passageway; and an inner body attached to the outer body and at least partially disposed within the passageway defined by the outer body, the inner body having a first end, a second end, and an outer surface, the outer surface having a circumference; wherein the inner surface of the outer body and the outer surface of the inner body define a channel within the passageway of the outer body, the inner surface of the outer body and the outer surface of the inner body defining the channel about the entire circumference of the outer surface of the inner body, the inner surface of the outer body and the outer surface of the inner body configured to allow a fluid to pass through the channel from the first end of the outer body to the second end of the outer body such that the fluid exits the channel at the second end of the outer body at an angle that is directed toward said lengthwise axis of said low drag low noise device and away from the second end of the inner body, the angle being between about 0 degrees and about 50 degrees relative to an axis that contains the second end of the outer body and that is parallel to said lengthwise axis of said low drag low noise device.
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Specification