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US 6,886,414 B2Granted
Power generating meter
AssigneeDresser, Inc.
InventorsFrancisco M. Gutierrez, Rick D. Atton
Life of this patent
Estimating the term…
Abstract
Flow device for generating electrical power from fluid flow. The device comprises rotatable structure driven by the fluid, which in turn drives a magnetic field generator. A magnetic sensor responsive to the magnetic field generates electrical power for powering external devices.
Claims37
A system for providing electric power, the system comprising:
- a body having an inlet and an outlet through which gas flows;
- a rotatable structure in the body, the rotatable structure driven by the gas;
- a magnetic field generating component coupled to the rotatable structure and located in a portion of the body that is sealed from the gas flow, the magnetic field generating component driven by the rotatable structure;
- and
- a sensor component responsive to the generated magnetic field to generate an electrical signal output.
2 more elements
A flow meter comprising:
- a meter body through which fluid flows;
- a rotatable structure in the meter body, the rotatable structure driven by the fluid flow;
- and
- a power generator supported by the meter body, wherein the generator comprises:
- a magnetic field generating component coupled to the rotatable structure and located in a portion of the body that is sealed from the fluid flow, the magnetic field generating component rotated by the rotatable structure, and
- a sensor component positioned to be affected by the magnetic field and to generate an electrical signal output in response to the magnetic field.
3 more elements
A flow device comprising:
- a body through which fluid flows;
- a rotatable shaft in the body, the rotatable shaft generally transverse to and driven by flow of the fluid through the body;
- a magnet coupled to the rotatable shaft and located in a portion of the body sealed from the fluid flow, the magnet rotated transversely to and by the rotatable shaft;
- and
- a magnetic sensor in the magnetic field generating a sinusoidal output, wherein the magnetic sensor comprises:
- a magnetic core, and
- a conductor coiled around the core.
4 more elements
A flow device comprising:
- a body through which gas flows;
- a rotatable structure in the body, the rotatable structure driven by flow of gas through the body;
- a magnet coupled to the rotatable shaft and located in a portion of the body sealed from the gas flow, the magnet driven by the rotatable structure;
- and
- a magnetic sensor positioned in the magnetic field to generate power that varies with rotation rate of the rotatable structure, wherein the power generated is at least about 500 μWatts when the rotation rate of the rotatable structure is approximately 200 RPM.
2 more elements
Dependencies are inferred from the claim text.