Method for diverting flow around an obstruction in an internal cooling circuit
First Claim
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1. A rotary machine comprising:
- a casing providing an annular chamber for rotating components of the machine;
a cooling passage extending laterally through the casing or mounted to a surface of the casing;
a plug assembly connected to the cooling passage and in the casing or mounted to the casing, wherein the plug assembly includes a collar and a conduit extending through the collar, anda cooling air by-pass passage which is enclosed within the collar and in fluid communication with the cooling passage such that cooling air from the cooling passage flows through the by-pass passage and returns to the cooling passage, andanother cooling passage or a port extending through the conduit of the plug assembly.
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Abstract
A rotary machine including: a casing providing an annular chamber for rotating components of the machine; a cooling passage extending through the casing or mounted to a surface of casing; a plug assembly connected to the cooling passage and in the casing or mounted to the casing, wherein the plug assembly includes a collar and a conduit aligned with an axis of the collar, and the collar includes a cooling air by-pass passage in fluid communication with the cooling passage such that cooling air from the cooling passage flows through the by-pass passage and returns to the cooling passage, and another cooling passage or a port extending through the conduit of the plug assembly.
30 Citations
20 Claims
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1. A rotary machine comprising:
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a casing providing an annular chamber for rotating components of the machine; a cooling passage extending laterally through the casing or mounted to a surface of the casing; a plug assembly connected to the cooling passage and in the casing or mounted to the casing, wherein the plug assembly includes a collar and a conduit extending through the collar, and a cooling air by-pass passage which is enclosed within the collar and in fluid communication with the cooling passage such that cooling air from the cooling passage flows through the by-pass passage and returns to the cooling passage, and another cooling passage or a port extending through the conduit of the plug assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A port for an instrument to inspect a rotary machine, the port comprising:
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a hollow tube extending at least partially through a casing of the machine, wherein the hollow tube is transverse to a rotational axis of the machine, wherein the hollow tube includes a proximal end at an outer surface of the casing and a distal edge proximate to an inner surface of the casing, and a plug assembly in or mounted to the casing such that the plug assembly extends entirely through and obstructs a cooling air passage in or mounted to the casing, the plug assembly includes a collar and a conduit, wherein the conduit is coaxial with and open to the hollow tube and the collar includes a cooling air by-pass passage that is enclosed within the collar and open to the cooling air passage such that cooling air from the cooling air passage flows through the cooling air by-pass passage and returns to the cooling air passage. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method to provide a by-pass passage for a cooling passage in a casing of a rotary machine comprising:
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mounting a plug assembly in the casing or to a surface of the casing, wherein the plug assembly includes a collar with a by-pass cooling passage and a center opening, wherein the by-pass cooling passage is enclosed within the collar; extending a first cooling passage or other passage through the center opening of the collar, and connecting the by-pass cooling passage to a second cooling passage such that cooling air flows from the second cooling passage, through the by-pass cooling passage and returns to the second cooling passage. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification