Title:
流量制御装置
Document Type and Number:
Japanese Patent JP4113003
Kind Code:
B2
Abstract:
A flow control device includes an opening part through which an upstream side of a fluid flow passage is in communication with a downstream side of the fluid flow passage. A valve element closes the opening part and includes a large flow rate controlling valve element capable of adjusting an opening degree of the opening part, a sealing member provided with a valve hole having an open area smaller than the opening part and formed to be capable of being brought into tight contact with a peripheral wall part of the opening part and a small flow rate controlling valve element capable of adjusting an opening degree of the valve hole. A valve drive device rotates to drive the valve element in a closed direction for closing the opening part or in an opened direction for opening the opening part.
Inventors:
Seiichiro Noritake
Ryuhei Wada
Ryuhei Wada
Application Number:
JP2003042060A
Publication Date:
July 02, 2008
Filing Date:
February 20, 2003
Export Citation:
Assignee:
Nidec Sankyo Co., Ltd.
International Classes:
F16K31/04; F16K1/20; F16K1/52; F16K1/54; F16K39/02
Domestic Patent References:
| JP10196808A | ||||
| JP50117024A | ||||
| JP59194181A | ||||
| JP58091981A | ||||
| JP2000120885A | ||||
| JP2000193100A | ||||
| JP2000346225A | ||||
| JP2000304412A | ||||
| JP3006175U | ||||
| JP60121574U |
Attorney, Agent or Firm:
Shiro Yokozawa