FLUID VALVE AND SHAFT SEALING STRUCTURE THEREOF
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United States of America Patent
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Issued Date -
Dec 24, 2015
app pub date -
Nov 14, 2014
filing date -
Jun 24, 2014
priority date (Note) -
Abandoned
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Abstract
A fluid valve includes a valve body, a shaft and a valve disc. A shaft seal groove and a valve disc groove, which are in communication with each other, are provided in the valve body. The valve disc is disposed in the valve disc groove. A modular shaft sealing structure is provided in the shaft seal groove, and formed by sequentially stacked shaft seal rings, shaft rings and spring. The inner sides of these components are combined to be an accommodating space, in which the shaft is allowed to be accommodated. The modular shaft sealing structure of the present invention may be detachable, and can be integrally replaced, enabling more convenient replacement of components in the shaft sealing structure, so that the loads on the entire shaft sealing structure can be balanced.
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