IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0869291
(2010-08-26)
|
| 등록번호 |
US-9719683
(2017-08-01)
|
|
발명자
/ 주소 |
- Cox, Donald W.
- Noman, Syed Mohammad Shiblee
|
| 출원인 / 주소 |
- Wayne/Scott Fetzer Company
|
| 대리인 / 주소 |
|
| 인용정보 |
피인용 횟수 :
0 인용 특허 :
86 |
초록
▼
A power burner system for use with a heating appliance includes a burner tube, a gas valve for providing gas to the burner tube, and a variable speed combustion air blower for mixing air with the gas provided to the burner tube. The burner system further includes a control in communication with the
A power burner system for use with a heating appliance includes a burner tube, a gas valve for providing gas to the burner tube, and a variable speed combustion air blower for mixing air with the gas provided to the burner tube. The burner 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.
대표청구항
▼
1. A power burner system for use with a heating appliance having an air circulating fan, the burner system comprising: a burner tube;a gas valve adapted to receive gas from a supply and to provide gas to said burner tube, said gas valve adjustable to a plurality of positions to provide gas at a cont
1. A power burner system for use with a heating appliance having an air circulating fan, the burner system comprising: a burner tube;a gas valve adapted to receive gas from a supply and to provide gas to said burner tube, said gas valve adjustable to a plurality of positions to provide gas at a controlled rate;a variable speed combustion air blower operatively coupled to said burner tube and adapted to mix air with the gas from the supply; anda control communicating with said gas valve and said combustion air blower, said control operative to modulate said gas valve and said combustion air blower to control gas flow from said gas valve and air flow from said blower to maintain substantially stoichiometric conditions of the air and gas flow into said burner tube;wherein said modulation is based at least in part on a speed of the air circulating fan. 2. The burner system of claim 1, wherein the air circulating fan is a variable speed air circulating fan, and wherein said controller is adapted to communicate with the air circulating fan and to control a speed of the air circulating fan as a function of a heat demand of the system. 3. The burner system of claim 1, wherein the heating appliance is used with a variable speed exhaust fan, and wherein: said controller is adapted to communicate with the exhaust fan and to control a speed of the exhaust fan as a function of a heat demand of the system. 4. The burner system of claim 1, further comprising: a sensor operative to sense a speed of said combustion air blower and to send signals to said control related to said sensed speed;wherein said control further modulates said combustion air blower in response to said signals from said sensor to achieve a desired speed related to the stoichiometric conditions of said burner. 5. The burner system of claim 4, wherein said control further modulates said gas valve as a function of said sensed blower speed in response to a demand for reduced heat output. 6. The burner system of claim 5, wherein said control modulates said gas valve as a function of said sensed blower speed until said gas valve is within a predetermined range of a desired gas valve position corresponding to the reduced heat output, whereafter said control moves said gas valve directly to said desired gas valve position. 7. The burner system of claim 6, wherein said gas valve is moved directly to said desired gas valve position when said gas valve position is within 10 percent of said desired gas valve position. 8. The burner system of claim 1, wherein: said control receives signals related to the operation of at least one of said gas valve, said combustion air blower, the air circulating fan, or an exhaust fan;said control is adapted to control at least one of said gas valve, said combustion air blower, the air circulating fan, or the exhaust fan to maintain combustion at a substantially stoichiometric condition; andsaid control stores information related to the operation of at least one of said gas valve, said blower, the air circulating fan, or the exhaust fan and corresponding to the substantially stoichiometric condition. 9. A power burner system for use with a heating appliance having an air circulating fan, the burner system comprising: a burner tube;a gas valve adapted to receive gas from a supply and to provide gas to said burner tube, said gas valve adjustable to a plurality of positions to provide gas at a controlled rate;a variable speed combustion air blower operatively coupled to said burner tube and adapted to mix air with the gas from the supply; anda control communicating with said gas valve and said combustion air blower, said control operative to modulate said gas valve and said combustion air blower to control gas flow from said gas valve and air flow from said blower to maintain substantially stoichiometric conditions of the air and gas flow into said burner tube;wherein said modulation is related to a speed of the air circulating fan;wherein the heating appliance is used with a variable speed exhaust fan, and;a sensor configured to generate a signal related to a condition of exhaust proximate the exhaust fan;said controller adapted to control a speed of the exhaust fan as a function of the signal generated by said sensor. 10. A power burner system for use with a heating appliance having an air circulating fan, the burner system comprising: a burner tube;a gas valve adapted to receive gas from a supply and to provide gas to said burner tube, said gas valve adjustable to a plurality of positions to provide gas at a controlled rate;a variable speed combustion air blower operatively coupled to said burner tube and adapted to mix air with the gas from the supply;a control communicating with said gas valve and said combustion air blower, said control operative to modulate said gas valve and said combustion air blower to control gas flow from said gas valve and air flow from said blower to maintain substantially stoichiometric conditions of the air and gas flow into said burner tube;wherein said modulation is related to a speed of the air circulating fan;a sensor operative to sense a speed of said combustion air blower and to send signals to said control related to said sensed speed;wherein said control further modulates said combustion air blower in response to said signals from said sensor to achieve a desired speed related to the stoichiometric conditions of said burner; anda memory configured to store information related to a voltage corresponding to said sensed speed of said combustion air blower. 11. The burner system of claim 10, wherein said memory is configured to store information corresponding to a stall condition of said blower.
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