High-speed jet control
AssigneeUtah State University
InventorBarton Smith
Life of this patent
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Abstract
A device is disclosed that uses a flow-control methodology to control sprays at very high precision and frequency. The device is based on an enhanced Coanda effect. The control flow is selectively applied to the region in which we desire the jet to vector and control the profile (width) of the jet. In one embodiment, the control flow is applied at the desired circumferential location by the action of a rotting disk with a flow passage of a size that spreads the jet the desired amount. The size of this flow passage may be controlled by using two overlapping disks with large holes in each. By rotating one disk relative to the other, the size of the resultant passage can be modified.
Claims30
A directionally adjustable spray device comprising:
- a fluid flow channel within said housing having an input end and an output end;
- a first fluid jet flowing through said flow channel;
- a control flow channel having an input end and an output end;
- a second fluid jet flowing through said control channel;
- said output end of said control channel and said output end of flow channel merging.
A directionally adjustable spray device comprising:
- a housing having an input end and an output end;
- a fluid flow channel within said housing having an input end and an output end;
- a first fluid jet flowing through said flow channel;
- a control flow channel having an input end and an output end;
- a second fluid jet flowing through said control channel;
- said output end of said control channel and said output end of flow channel merging close to said output end of said housing.
A directionally adjustable spray device comprising:
- a housing having an input end and an output end;
- a fluid flow channel within said housing having an input end and an output end;
- a first fluid jet flowing through said flow channel;
- a control flow channel having an input end and an output end;
- a second fluid jet flowing through said control channel;
- said control flow channel surrounding said fluid flow channel;
- said output end of said control channel and said output end of flow channel merging close to said output end of said housing;
- and
- a means to control the circumferential position of said control flow in said control flow channel.
A directionally adjustable spray device comprising:
- a housing having an input end and an output end;
- a fluid flow channel within said housing having an input end and an output end;
- a first fluid jet flowing through said flow channel;
- a control flow channel having an input end and an output end;
- a second fluid jet flowing through said control channel;
- said output end of said control channel and said output end of flow channel merging close to said output end of said housing;
- and
- said first fluid jet undergoes a chemical reaction with said second fluid jet.
Dependencies are inferred from the claim text.