Rotary kinetic fluid motors or pumps – Including casing part selectively movable relative to fixed... – Separate liner portion
Patent
1984-10-09
1987-03-17
Garrett, Robert E.
Rotary kinetic fluid motors or pumps
Including casing part selectively movable relative to fixed...
Separate liner portion
415219R, 403374, F01D 2524
Patent
active
046503960
ABSTRACT:
A vane carrier (1) is axially located in an upper casing part (2) by means of a wedge (3). On the one hand, axial location, attainable by simple means, of the vane carrier (1) is desirable after the assembly of the upper casing parts (2). On the other hand, there is a requirement for easy release of the upper casing part (2) during the dismantling of the latter. During the assembly of the upper casing part (2), the wedge (3) is pulled tight against the vane carrier (1) by means of a screw (8). The vane carrier (1) is axially located in the upper casing part (2) by contact of the wedge contact surfaces (3', 3") with the surface (5) of the vane carrier (1) and with the surface (2") of the upper casing part (2). During dismantling of the upper casing part (2), the screw (8), and therefore the wedge (3), is loosened. When the upper casing part (2) is slightly raised, gaps form between the surfaces (2', 4) of the vane carrier (1) and the upper casing part (2), between the surfaces (3', 5) of the wedge (3) and the vane carrier (1), between the part (2) and between the surfaces (35, 36) of the upper casing part (2) and the compressor part (28). This formation of gaps makes possible satisfactory dismantling and assembly of the upper casing part (2) without the danger of damage to the previously paired surfaces or the previously clearance fitted surfaces concerned.
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BBC Brown Boveri & Company Limited
Garrett Robert E.
Pitko Joseph M.
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