Title:
GAS MIXING DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/123285
Kind Code:
A1
Abstract:
A gas mixing device is disclosed. The present invention comprises: a first electric type flow rate controller, provided with a first gas, for controlling a flow rate of the first gas; a second electric type flow rate controller, provided with a second gas to be mixed with the first gas, for controlling a flow rate of the second gas; and a first non-electric type flow rate controller for controlling the flow rate of the first gas, by receiving the first gas, when the electric power is not supplied to the first electric type flow rate controller provided in parallel to the first electric type flow rate controller. According to the present invention, the gas mixing device for implementing a powerless operation during a power outage and guaranteeing high accuracy of a gas mixing ratio is provided.
Inventors:
KIM JONG HYEOK (KR)
Application Number:
PCT/KR2013/006931
Publication Date:
August 14, 2014
Filing Date:
August 01, 2013
Export Citation:
Assignee:
SEHWA HIGH TECH CO LTD (KR)
International Classes:
G05D11/02; B01F23/10; G05D11/035
Foreign References:
| KR20090106181A | 2009-10-08 | |||
| JPH11326006A | 1999-11-26 | |||
| US20050277010A1 | 2005-12-15 | |||
| JP2002039422A | 2002-02-06 | |||
| JP2008123085A | 2008-05-29 |
Attorney, Agent or Firm:
INNO PATENT LAW FIRM (KR)
특허법인 이노 (KR)
특허법인 이노 (KR)
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