| 摘要 |
<p>A liner ring for a pump which is provided between a pump casing and an impeller to check counterflow therebetween. The liner ring comprises a housing provided on a casing body, a sliding member provided in the housing in such a manner that a certain gap is provided in a radial direction between the sliding member and an impeller, and an elastic member provided between the sliding member and the housing. In accordance with the present invention, the sliding member is housed in the housing made of sheet metal in such a manner that a certain gap is provided between the sliding member and the housing. The gap corresponds to the variation of dimension caused by the difference of thermal expansion coefficient between the sliding member and the housing, The gap is sealed by the elastic member provided between the sliding member and the housing.</p> |
