公开(公告)号：US4552304A

公开(公告)日：1985-11-12

申请号：US592073

申请日：1984-03-22

申请人： Arthur S. Papazian

发明人： Arthur S. Papazian

IPC分类号： F23N1/00 ,  F23N5/20

CPC分类号： F23N1/002 ,  F23N2027/10 ,  Y10S236/03

摘要： An electrically-operated gas valve in a gas furnace is pulsated between the fully-open and fully-closed position in response to a series of electrical pulses of selectable frequency and duty cycle. The pulses are generated by an electronic timer, which is user-adjustable to select a frequency and duty cycle from a range of frequencies and duty cycles. A switch in series with the gas valve alternately energizes and deenergizes the valve in response to the pulses, whereby the valve is fully-open when energized and fully-closed when deenergized.

摘要翻译： 响应于可选频率和占空比的一系列电脉冲，气体炉中的电动气阀在完全打开和完全关闭位置之间脉动。 脉冲由电子定时器产生，电子定时器是用户可调整的，以从频率范围和占空比中选择频率和占空比。 与气阀串联的开关响应于脉冲交替地激励和断开阀门，从而当断电时通电和全关闭时，阀门完全打开。