Title:
VAVLE
Document Type and Number:
WIPO Patent Application WO/2007/131388
Kind Code:
A1
Abstract:
There is a close part rotating or reciprocating linearly between the upriver flow
passage and the downriver flow passage in a valve. A sub passage mechanism is mounted
in the upriver flow passage, which is arranged in a row or more rows along the motion
direction of the close part. The sub passage mechanism divides the upriver flow
passage into two or more sub passages. When the close part rotates or reciprocates
linearly, the upriver surface will open or close respectively all of the sub passages
in the valve.
Inventors:
SONG YONGSHENG (CN)
Application Number:
PCT/CN2006/000980
Publication Date:
November 22, 2007
Filing Date:
May 15, 2006
Export Citation:
Assignee:
SONG YONGSHENG (CN)
International Classes:
F16K3/00; F16K5/00; F16K25/04
Foreign References:
| CN2064447U | 1990-10-24 | |||
| CN2349409Y | 1999-11-17 | |||
| CN1107952A | 1995-09-06 | |||
| CN85104939A | 1987-01-07 | |||
| JPH09210236A | 1997-08-12 | |||
| US4212321A | 1980-07-15 |
Attorney, Agent or Firm:
SHANGHAI CONCORD PATENT AGENT CO., LTD. (No.567 MaoTai Rd, Shanghai 6, CN)
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