Rotary kinetic fluid motors or pumps – Selectively adjustable vane or working fluid control means – Runner – shaft – or separate motor operated
Patent
1998-05-14
2000-06-06
Verdier, Christopher
Rotary kinetic fluid motors or pumps
Selectively adjustable vane or working fluid control means
Runner, shaft, or separate motor operated
415155, 415151, 415159, 415202, 2952501, 295276, 29558, 2988802, F01D 1714, F01D 1718
Patent
active
06071073&
ABSTRACT:
A method for fabricating a turbine inlet casing has several steps. Providing a prismatic block having an upstream face, a downstream face, and a central axis perpendicular to the upstream and downstream faces. Cutting a circular shaft clearance opening through the block, concentric with the central axis. Cutting an inlet plenum through the block along the central axis. The inlet plenum is positioned towards an outer edge of the block. Cutting one or more distribution ports through the block along the central axis. These ports begin close to the inlet plenum and end at annular segments which are concentric with the central axis and at a radial position coincident with the turbine flowpath. The annular ends (of the distribution ports) are spaced circumferentially apart from each other. Cover plates are attached to the upstream and/or downstream faces of the block over the passages and ports. Connecting holes are made between the inlet plenum and the distribution ports. A turbine inlet hole is made to provide an ingress path for motive fluid to the inlet plenum. The block can then be split along a line perpendicular to the central axis and extra casing extensions can be added to the upstream and downstream faces to provide for interfacing with other parts of the turbine.
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Dresser-Rand Company
Verdier Christopher
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