Title:
DUAL VENTURI FOR COMBUSTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/171690
Kind Code:
A1
Abstract:
The present invention relates to a dual venturi for a combustion device and, particularly, to a dual venturi for a combustion device which can adjust an amount of gas and air supplied to a burner side of a water heater and can efficiently control the quantity of heat by coupling a motor and a damper so as to increase a turn-down ratio and by allowing the damper to simultaneously open or close an inlet of secondary air and gas as the damper is rotated by the driving of the motor. The dual venturi, according to the present invention, comprises: a housing having, on one side thereof, a discharge part coupled to a turbo fan, and having, on the inner side thereof, a predetermined space for allowing gas and air to flow therein; an air supply unit divided by a first partition wall (130) on the inner side of the housing and separated into a first air supply unit and a second air supply unit; a gas supply unit formed on one lateral side of the housing and divided by a second partition wall, wherein the gas supply unit is separated into a first gas supply unit having a first opening part so as to be communicated with the first air supply unit and a second gas supply unit having a second opening part so as to be communicated with the second air supply unit; and an opening and closing means for blocking a flow of secondary air and secondary gas by blocking the second air supply unit and the second opening part when a combustion device needs a low quantity of heat, and for opening the second air supply unit and the second opening part when a high quantity of heat is needed.
More Like This:
| WO/1987/007549 | GAS HEATED TOOL WITH CONTROL VALVE AND REFILLABLE CONTAINER |
| WO/2013/129773 | DUAL VENTURI FOR HOT WATER HEATER |
Inventors:
KIM KYEONG JOO (KR)
KIM SUNG KI (KR)
KIM SUNG KI (KR)
Application Number:
PCT/KR2014/003222
Publication Date:
October 23, 2014
Filing Date:
April 15, 2014
Export Citation:
Assignee:
KYUNGDONG NAVIEN CO LTD (KR)
International Classes:
F23D14/60; F23N1/02; F24H9/20
Foreign References:
| US20110139045A1 | 2011-06-16 | |||
| KR20100020084A | 2010-02-22 | |||
| KR100805630B1 | 2008-02-20 | |||
| KR20120015100A | 2012-02-21 |
Other References:
See also references of EP 2988066A4
Attorney, Agent or Firm:
CHO, CHUL HYUN (KR)
조철현 (KR)
조철현 (KR)
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