公开(公告)号：US20240337385A1

公开(公告)日：2024-10-10

申请号：US18578910

申请日：2022-07-11

申请人： PITTWAY SARL

发明人： Clemens Metker ,  Wim Munsterhuis ,  Gerrit Jan Baarda ,  Andreas Kammerahl ,  Martin Petersmann ,  Anton Quatmann ,  Ulrich Oldehus

IPC分类号： F23N1/02

CPC分类号： F23N1/025 ,  F23N2223/38 ,  F23N2225/06 ,  F23N2233/08 ,  F23N2235/16

摘要： Method for operating a gas burner appliance (10), the gas burner appliance (10) comprising: a combustion chamber (11), a mixing device (23), a fan (14), a gas safety valve unit (19) assigned to the gas duct (16) having a first gas safety valve (19a) and a second gas safety valve (19b) positioned downstream of the first gas safety valve (19a), a gas flow modulator (18) assigned to the gas duct (16), and an electrical or electronic absolute pressure sensor (21) assigned to the gas duct (16) positioned downstream of the first gas safety valve (19a). The gas burner appliance (10) is operated to compensate for a fluctuating gas inlet pressure of the gas burner appliance by executing the following steps: Measure a first absolute pressure by the absolute pressure sensor (21) when at least the first gas safety valve (19a) of the gas safety valve unit (19) is closed. Measure a second absolute pressure by the absolute pressure sensor (21) when the gas safety valve unit (19) is opened. Determine a pressure difference between the first absolute pressure or a pressure depending on the first absolute pressure and the second absolute pressure or a pressure depending on the second absolute pressure. Operate the gas flow modulator (18) dependent from said pressure difference.

公开(公告)号：US20230184433A1

公开(公告)日：2023-06-15

申请号：US17550540

申请日：2021-12-14

申请人： Wayne/Scott Fetzer Company

发明人： Donald W. Cox ,  Joeb M. Woodring

IPC分类号： F23N1/02

CPC分类号： F23N1/022 ,  F23N2223/04 ,  F23N2223/38 ,  F23N2223/30 ,  F23N2223/44 ,  F23N2233/08 ,  F23N2235/14

摘要： An electronic control system for a power burner system for use with a heating appliance includes a burner tube, a gas valve for providing gas to the burner tube, an electronic control and a variable speed combustion air blower for mixing air with the gas provided to the burner tube. The electronic control system further includes a control in communication with the gas valve and the combustion air blower. The control may also be in communication with various other devices of an appliance, such as a variable speed air-circulating fan, a variable speed exhaust fan, or various sensors associated with the heating appliance. The control modulates the gas valve and the combustion air blower to maintain substantially stoichiometric conditions of the gas and air provided to the burner tube and as a function of signals from at least one of the devices. In one embodiment, the burner system may be used in a conveyor oven.