MECHANICAL SEALING SYSTEM AND METHOD FOR ROTARY MACHINES
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Accused Products
Abstract
A rotary machine includes a machine rotor, a machine stator, and a fluid seal disposed between the machine rotor and the machine stator. The fluid seal includes a fluid seal stator, a fluid seal rotor, and an active gap control mechanism coupled to the fluid seal stator. The fluid seal is configured to control a gap between the fluid seal stator and the fluid seal rotor.
59 Citations
46 Claims
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1-26. -26. (canceled)
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27. A rotary machine, comprising:
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a machine rotor; a machine stator; and a fluid seal disposed between the machine rotor and the machine stator;
comprising;a fluid seal stator, a fluid seal rotor, and an active gap control mechanism comprising one or more shape memory alloy devices coupled to the fluid seal stator, and configured to bias the fluid seal stator towards or away from the fluid seal rotor to control a gap between the fluid seal stator and the fluid seal rotor. - View Dependent Claims (28, 29, 30, 31, 32)
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33. A rotary machine, comprising:
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a machine rotor; a machine stator; and a dry gas seal disposed between the machine rotor and the machine stator;
comprising;a fluid seal stator, a fluid seal rotor, and an active gap control mechanism configured to bias the fluid seal stator towards or away from the fluid seal rotor to control a gap between the fluid seal stator and the fluid seal rotor. - View Dependent Claims (34, 35)
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36. A fluid sealing device, comprising:
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a fluid seal stator; a fluid seal rotor; and an electromechanical device comprising one or more shape memory alloy devices coupled to the fluid seal stator and configured to bias the fluid seal stator towards or away from the fluid seal rotor to control the flow of a sealing fluid via a gap between the fluid seal stator and the fluid seal rotor. - View Dependent Claims (37, 38, 39, 40)
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41. A method of operating a rotary machine comprising a machine rotor;
- a machine stator; and
a fluid seal disposed between the machine rotor and the machine stator and comprising a fluid seal stator and a fluid seal rotor, the method comprising;biasing the fluid seal stator towards or away from the fluid seal rotor to actively control a flow of a sealing fluid via a gap between the fluid seal stator and the fluid seal rotor via a shape memory alloy device. - View Dependent Claims (42, 43, 44, 45, 46)
- a machine stator; and
Specification