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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-12589455-B2, on 31 March 2026. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000001292

Seal removal jig, seal removal method, and seal portion

Published
Permanent URL
Classification
Manufacturing & Assembly Equipment › Assembly Systems
Inventors
KONO YOSHIKUNI, KOYANAGI JUN, OKA HIROAKI
Assignee
MITSUBISHI HEAVY IND COMPRESSOR CORP
Original source
US-12589455-B2, the United States Patent and Trademark Office, 31 March 2026
Document SHA-256
8cd40b8526c8f0bb5053f34f3ad10b2810e89c714f217ee03219ab58c4cc3a72

Abstract

A seal removal jig is used for removing a seal portion from a casing of a rotary machine. The seal removal jig includes a jig body pushed up from below in a vertical direction by a jack, and a jig fixing portion that detachably fixes the jig body to an end surface of the seal portion. The jig body includes a jig contact portion that is contactable with an end surface of an upper half seal portion or a lower half seal portion in a circumferential direction about an axis of the rotary machine; and a jig protrusion protruding outward in a radial direction with respect to the jig contact portion and pushed up from below in the vertical direction by the jack. The ratio of a first distance to an outside diameter of the upper half seal portion or the lower half seal portion is 0.01 or more and 0.1 or less.

Publication information

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Citation

OpenTechnical Publication OT-2026-000001292, “Seal removal jig, seal removal method, and seal portion,” published September 15, 2026 at 19:04:42 UTC, https://opentechnical.org/p/OT-2026-000001292.

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