Patent ID: 11879329
Assignee: CHINA UNIVERSITY OF GEOSCIENCES (BEIJING)
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 3:
4. The device according to claim 3, wherein in the circumferential direction of the valve element sealing surface:
a bottom edge of the first upper valve hole is flush with a top edge of the second upper valve hole, a bottom edge of the second upper valve hole is flush with a top edge of the third upper valve hole, and
wherein a radian of the first upper valve hole, a radian of the second valve hole and a radian of the third upper valve hole are different from one another;
in a width direction of the valve element sealing surface: the first upper valve hole, the second upper valve hole and the third upper valve hole are arranged at intervals;
in a width direction of the valve seat sealing surface, a first lower valve hole, a second lower valve hole and a third lower valve hole are arranged at intervals,
wherein the first lower valve hole and the first upper valve hole have corresponding and equal widths, the second lower valve hole and the second upper valve hole have corresponding and equal widths, and the third lower valve hole and the third upper valve hole have corresponding and equal widths;
wherein top edges of the first lower valve hole, the second lower valve hole and the third lower valve hole are flush with one another, and bottom edges thereof are flush with one another; and
wherein the distributing valve seat is further provided with a communicating groove for connecting a respective one of the first lower valve hole, the second lower valve hole and the third lower valve hole to the inner flow channel.