Water heater having upstream and downstream manifolds
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F24H-001/52
F23L-001/00
F24H-001/20
F24H-009/00
출원번호
US-0801325
(2013-03-13)
등록번호
US-8960131
(2015-02-24)
발명자
/ 주소
Gatley, Jr., William S.
출원인 / 주소
Regal Beloit America, Inc.
대리인 / 주소
Thompson Coburn LLP
인용정보
피인용 횟수 :
0인용 특허 :
14
초록▼
A water heater system comprises a water tank, a burner plenum, a flue, a blower, a combustion air passageway, a dilution air passageway, an upstream manifold, and a downstream manifold. The upstream manifold divides air from the blower so that some air flows through the combustion air passageway to
A water heater system comprises a water tank, a burner plenum, a flue, a blower, a combustion air passageway, a dilution air passageway, an upstream manifold, and a downstream manifold. The upstream manifold divides air from the blower so that some air flows through the combustion air passageway to the burner plenum and some air flows through the dilution air passageway to the downstream manifold. The downstream manifold combines the air from the dilution air passageway with combustion products from the flue.
대표청구항▼
1. A water heater system comprising: a water tank;a jacket surrounding the water tank;a burner plenum adjacent the water tank;a fuel burner within the burner plenum, the fuel burner being configured and adapted to combust fuel to produce combustion products;a flue having an upstream end and a downst
1. A water heater system comprising: a water tank;a jacket surrounding the water tank;a burner plenum adjacent the water tank;a fuel burner within the burner plenum, the fuel burner being configured and adapted to combust fuel to produce combustion products;a flue having an upstream end and a downstream end, the flue being at least partially within the water tank, the upstream end of the flue being in fluid communication with the burner plenum, the flue being configured for passage of combustion products from the burner plenum through the water tank and toward the downstream end of the flue;a blower adapted and configured to blow air;an upstream manifold having an air intake passage, a combustion air discharge passage, and a dilution air discharge passage, the air intake passage being in fluid communication with and downstream of the blower, the upstream manifold being adapted and configured such that some air entering the intake passage via the blower is discharged out the combustion air discharge passage and some air entering the intake passage via the blower is discharged out the dilution air discharge passage;a combustion air passageway having an upstream end and a downstream end, the upstream end of the combustion air passageway being in fluid communication with the combustion air discharge passage of the upstream manifold, the combustion air passageway being adapted and configured to direct air discharged from the combustion air discharge passage of the air manifold to the burner;a downstream manifold having a combustion products intake passage, a dilution air intake passage and an exit passage, the combustion products intake passage being in fluid communication with the downstream end of the flue such that combustion products discharged from the flue enters the downstream manifold via the combustion products intake passage;a dilution air passageway in fluid communication with the dilution air discharge passage of the upstream manifold and in fluid communication with the dilution air intake passage of the downstream manifold, the dilution air passageway being adapted and configured such that dilution air exiting the dilution air discharge passage of the upstream manifold flows through the dilution air passageway and into the downstream manifold via the dilution air intake passage;the water heater system being adapted and configured such that air entering the downstream manifold via the dilution air intake passage and combustion products entering the downstream manifold via the combustion products intake passage are discharged together via the exit passage of the downstream manifold. 2. A water heater system as set forth in claim 1 wherein the fuel burner comprises a pre-mix fuel burner. 3. A water heater system as set forth in claim 2 wherein the burner plenum is adapted and configured to be at a pressure greater than ambient pressure during operation of the water heater system. 4. A water heater system as set forth in claim 2 further comprising a fuel supply line adapted to supply fuel into the combustion air passageway. 5. A water heater system as set forth in claim 2 wherein the combustion air passageway includes a venturi, the water heater system further comprising a fuel supply line in fluid communication with the venturi, the fuel supply line being adapted to supply fuel to the venturi, the venturi being adapted and configured to facilitate introduction of fuel into the combustion air passageway. 6. A water heater system as set forth in claim 5 further comprising a fuel control valve, the fuel control valve being adapted and configured to regulate fuel flow from a fuel supply through the fuel supply line. 7. A water heater system as set forth in claim 1 wherein at least a portion of the dilution air passageway is between the jacket and the water tank. 8. A water heater system as set forth in claim 1 wherein the tank comprises a lower region and an upper region, and wherein a portion of the dilution air passageway extends downstream from between the jacket and the lower region to between the jacket and the upper region. 9. A water heater system as set forth in claim 8 further comprising thermal insulation surrounding the water heater and within the jacket, said portion of the dilution air passageway being adjacent some of the thermal insulation. 10. A water heater system as set forth in claim 8 wherein the downstream manifold is within the jacket. 11. A water heater system as set forth in claim 10 wherein the downstream manifold is above the tank. 12. A water heater system as set forth in claim 1 wherein the downstream manifold is above the tank. 13. A water heater system as set forth in claim 12 wherein the fuel burner comprises a pre-mix fuel burner. 14. A water heater system as set forth in claim 13 wherein the water heater system is adapted and configured such that air flows through the combustion air passageway at a flow rate of between about 33% and about 50% of the rate of air flowing through the dilution air passageway during operation of the water heater. 15. A water heater system comprising: a water tank;a jacket surrounding the water tank;a burner plenum adjacent the water tank;a pre-mix fuel burner within the burner plenum, the fuel burner being configured and adapted to combust fuel to produce combustion products;a fuel supply line;a flue having an upstream end and a downstream end, the upstream end of the flue being in fluid communication with the burner plenum, the flue being configured for passage of combustion products from the burner plenum through the water tank and toward the downstream end of the flue;a blower adapted and configured to blow air;a combustion air passageway;a dilution air passageway;an upstream manifold having an air intake passage, a combustion air discharge passage, and a dilution air discharge passage; anda downstream manifold having a combustion products intake passage, a dilution air intake passage and an exit passage;the air intake passage of the upstream manifold being in fluid communication with and downstream of the blower, the upstream manifold being adapted and configured such that some air entering the intake passage via the blower is discharged out the combustion air discharge passage and some air entering the intake passage via the blower is discharged out the dilution air discharge passage, the fuel supply line being adapted to supply fuel into the combustion air passageway, the combustion air passageway facilitating fluid communication between the combustion air discharge passage of the upstream manifold and the fuel burner such that air from the blower via the combustion air discharge passage and fuel from the fuel supply line are fed to the pre-mix fuel burner via the combustion air passageway during operation of the water heater system, the combustion products intake passage of the downstream manifold being in fluid communication with the downstream end of the flue such that combustion products discharged from the flue during operation of the water heater system enters the downstream manifold via the combustion products intake passage, the dilution air passageway facilitating fluid communication between the dilution air discharge passage of the upstream manifold and the dilution air intake passage of the downstream manifold, the water heater system being adapted and configured such that air entering the downstream manifold via the dilution air intake passage and combustion products entering the downstream manifold via the combustion products intake passage are discharged together via the exit passage of the downstream manifold. 16. A water heater system as set forth in claim 15 wherein at least a portion of the blower is positioned under the tank. 17. A water heater system as set forth in claim 16 wherein at least a portion of the upstream manifold is positioned under the tank. 18. A water heater system as set forth in claim 17 wherein at least a portion of the downstream manifold is positioned above the tank. 19. A water heater system as set forth in claim 18 wherein the tank comprises a lower region and an upper region, and wherein a portion of the dilution air passageway extends downstream from between the jacket and the lower region to between the jacket and the upper region. 20. A water heater system as set forth in claim 19 further comprising thermal insulation surrounding the water heater and within the jacket, said portion of the dilution air passageway being adjacent some of the thermal insulation.
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이 특허에 인용된 특허 (14)
Rutz Allen L. ; Saunders James H. ; Talbert Sherwood G., Appliance for improved venting.
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