貯湯式ボイラーのコントロールバルブ

Japanese Patent JP4203183

B2

A control valve for a vessel gas water heater includes a single governor (GV) for controlling a wider range of the flow of gas from a pilot supply to a main supply. Once an ignition knob (1) is pressed and turned to open a magnetic valve (V1) and ignite a pilot burner (PB), the magnetic valve (V1) is maintained open by the electromotive force of a thermocouple (TC) heated by a pilot flame (c). When the ignition knob (1) is released from being pressed, and turned further to open a plunger valve (V3), the boiler is shifted to the standby state for enabling the supply of gas to the main burner (MB). Meanwhile, a sensor rod (B) is mounted in a reservoir (A) for contracting and expanding depending on the temperature of the hot water in the reservoir (A) to open and close a snap valve (V5), thus controlling the combustion and its cancellation in the main burner (MB). Accordingly, the temperature of the hot water in the reservoir (A) can automatically be controlled in the vessel gas water heater. In particular, a single governor (GV) is provided in which the seat tightness between its valve (V4) and valve seat (17) is improved with the use of at least a rubber molding (17a), and the gas valve (V4) is prevented from tilting by a guide pin (20) freely fitted in a shaft (18) of the valve (V4), thus controlling the flow of gas to the main burner (MB) and to the pilot burner (PB) for a wider range from the main supply to the pilot supply.

Hideo Inagaki
Junji Tanahashi

JP15631999A

December 24, 2008

June 03, 1999

Click for automatic bibliography generation  

Paloma Industry Co., Ltd.

F16K31/68; F16K35/02; F23K5/00; F23N1/00; F23N1/08; F23N5/02; F23N5/10; F24H1/18

JP58102141U
JP2298725A
JP8296836A
JP9042652A
JP58097361U
JP62045544U
JP8233265A
JP2115654U
JP11141863A
JP7119846A
JP48039209Y1
JP4020707A
JP60048041U

Shoichi Mukaiyama

Previous Patent: 水洗トイレ用薬剤供給具

Next Patent: STORAGE FURNITURE WITH DRAWER