Head flange mounting device for turbo-machine
AssigneeHitachi, Ltd.
InventorsTadashi Kaneki, Kazuo Takeda
Life of this patent
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Abstract
A head flange mounting device for mounting a head flange on a casing in a turbo-machine, such as a centrifugal compressor, is disclosed which includes a plurality of slide keyways formed on the inner surface of the casing and on the outer circumferential surface of the head flange in such a manner that each slide keyway formed on the casing and each slide keyway formed on the casing and each slide keyway formed on the head flange are in juxtaposed relation to form a pair of slide keyways. A slide key is held in each pair of slide keyways so as to keep the center axis of the head flange in alignment with the center axis of the casing at all times.
Claims13
A head flange mounting device for a turbo-machine comprising a casing, a head flange, a shear key for mounting the head flange on the inner circumferential surface of an end portion of the casing, a rotary shaft supported by a bearing on said head flange, and a labyrinth seal supported by said casing to seal a gap between said rotary shaft and said casing, such head flange mounting device comprising:
- at least two pairs of slide keyways formed circumferentially spaced apart from one another, one slide keyway of each pair being formed on the inner surface of said casing at a right angle thereto inwardly of said shear key and the other slide keyway being formed on the outer circumferential surface of said head flange at a right angle thereto so that the two slide keyways are juxtaposed against each other;
- and
- a slide key held in each pair of slide keyways in a manner preventing the relative movement of the head flange radially with respect to the casing.
Dependencies are inferred from the claim text.