Title:
FEED WATER CONTROL DEVICE
Document Type and Number:
Japanese Patent JP3128790
Kind Code:
B2
Abstract:
PURPOSE: To control fluid by using the energy of a dry cell for a long period, without using a solenoid valve of a latch type.
CONSTITUTION: In an automatic flushing device 10, a pressure reducing valve 48 is arranged between a pressure chamber 46 of a flush valve of an automatic closing type 34 and a pilot, solenoid valve 50 in order to limit the hydraulic pressure, which acts on the solenoid valve 50, to a prescribed pressure. With this, the energy consumption of the dry cell, which is consumed to bring a solenoid valve plunger 122 into valve opening operation, resisting the hydraulic pressure, can be reduced. After the solenoid valve 50 is opened, a driving circuit 28 drives the solenoid valve 50 at a smaller electric current than is required when the solenoid valve 50 comes into valve opening operation and keeps the solenoid valve in an open state. With this, the energy of the dry cell, which is consumed while the solenoid valve is kept open, can be reduced. Putting together these effects, the energy consumption per one-time operation of the flushing device 10 can be cut down, and the flushing device can be operated by the energy of the dry cell for a long period. The pressure reducing valve 48 may be arranged at the upstream side of a flushing valve 162.
More Like This:
| WO/2005/049928 | FLOW CONTROL DEVICE |
Inventors:
Hiroshi Kobayashi
Ryosuke Hayashi
Shoji Inokuchi
Yukihiro Muroya
Ryosuke Hayashi
Shoji Inokuchi
Yukihiro Muroya
Application Number:
JP18040092A
Publication Date:
January 29, 2001
Filing Date:
June 15, 1992
Export Citation:
Assignee:
Totou Equipment Co., Ltd.
International Classes:
E03D3/02; E03C1/05; E03D3/04; E03D5/10; F16K21/04; F16K31/40; (IPC1-7): E03D3/02; E03C1/05
Domestic Patent References:
| JP62160335A | ||||
| JP61294034A | ||||
| JP6289371U |
Attorney, Agent or Firm:
Hiroshi Ito