Title:
ELECTRIC-CONTROL VALVE FOR REGULATING FLOW OF FLUID
Document Type and Number:
WIPO Patent Application WO/2000/008364
Kind Code:
A1
Abstract:
The invention relates to an electric-control valve for regulating flow of fluid, wherein the water diaphragm front and rear chambers are provided between the inlet and the outlet conduits. The main stream of water flows from the inlet conduit into the outlet conduit through the water diaphragm front chamber and the branch stream of water flows from an auxiliary regulating chamber into the outlet conduit through the water diaphragm rear chamber and a regulating chamber controlled by rotary type electromagnet. The flow of fluid can be regulated continuously and a water heater can be started at a predetermining flow without being subject to the influence of water pressure change and occurring of heating without water according to the output of electric signal of a rotary flowmeter provided in the conduit. The advantages of the invention reside in regulating rapidly, high accuracy of constant flow and the wide range of water pressure, in addition, the invention has better reliability and safety.
More Like This:
| JPS618823 | [Title of the device] Flow meter |
| JP2001221665 | FLOWMETER |
| JP2006242573 | WATER METER |
Inventors:
PAN ZHAOKENG (CN)
Application Number:
PCT/CN1999/000106
Publication Date:
February 17, 2000
Filing Date:
August 03, 1999
Export Citation:
Assignee:
PAN ZHAOKENG (CN)
International Classes:
G01F1/075; F16K7/17; F16K31/40; G05D7/01; G05D7/06; (IPC1-7): F16K31/126; F16K7/17
Foreign References:
| US5271601A | 1993-12-21 | |||
| CN1041210A | 1990-04-11 | |||
| US3442287A | 1969-05-06 | |||
| CN2186832Y | 1995-01-04 | |||
| AU600608B2 | 1990-08-16 |
Other References:
See also references of EP 1101986A4
Attorney, Agent or Firm:
LUNG TIN INTERNATIONAL PATENT & TRADEMARK AGENT LTD. (20 Zhichun Road Haidian District, Beijing 8, CN)
Download PDF: