[특허]Dual fuel heating system

Deng, David

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Dual fuel heating system

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F24C-001/02 F16K-011/083 F23C-001/08 F23K-005/00 F23K-005/06 F23N-001/00 F24H-003/00 F24H-009/18
출원번호	US-0859202 (2015-09-18)
등록번호	US-10066838 (2018-09-04)
발명자 / 주소	Deng, David
출원인 / 주소	Deng, David
대리인 / 주소	Innovation Capital Law Group, LLP
인용정보	피인용 횟수 : 1 인용 특허 : 218

초록

A dual fuel heating system can be used in a gas appliance. A dual fuel heating system can have a fuel selector valve for selecting between a first fuel and a second fuel different from the first. The dual fuel heating system can include a regulator unit configured to regulate the pressure of the two different fuels. The selector valve determines which flow path for which fuel is open and which is closed.

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1. A dual fuel heating system comprising: a first pressure regulator to regulate a flow of a first fuel, the first pressure regulator having a first inlet and a first outlet;a second pressure regulator to regulate a flow of a second fuel different from the first fuel and at a higher pressure than the first fuel, the second pressure regulator having a second inlet and a second outlet;a fuel selector valve having a first position configured to permit a flow of the first fuel from the first outlet of the first pressure regulator through the fuel selector valve and to prevent a flow from the second outlet of the second pressure regulator through the fuel selector valve and having a second position configured to permit a flow of the second fuel from the second outlet of the second pressure regulator through the fuel selector valve and to prevent a flow from the first outlet of the first pressure regulator through the fuel selector valve; anda control valve configured to divide the flow from the fuel selector valve of either the first fuel or the second fuel into two separate flows leaving the control valve and to control an amount of flow in each of the two separate flows leaving the control valve,wherein the control valve comprises at least one of a manual valve, a thermostat valve, an AC solenoid, and a DC solenoid. 2. The dual fuel heating system of claim 1, wherein the first fuel comprises natural gas and the second fuel comprises liquid propane. 3. The dual fuel heating system of claim 1, wherein the dual fuel heating system comprises part of a heater, oven, dryer or boiler. 4. The dual fuel heating system of claim 1, wherein the first pressure regulator is configured to provide a pressure in the range from about 3 inches of water column to about 6 inches of water column. 5. The dual fuel heating system of claim 4, wherein the second pressure regulator is configured to provide a pressure in the range from about 8 inches of water column to about 12 inches of water column. 6. The dual fuel heating system of claim 1, further comprising an outlet valve having a set of inlets and first and second sets of outlets wherein in a first position of the outlet valve flow is permitted from the control valve into the set of inlets to the first set of outlets and in a second position of the outlet valve flow is permitted into the set of inlets through the outlet valve to the second set of outlets. 7. The dual fuel heating system of claim 6, wherein the fuel selector valve and the outlet valve are coupled together such that selecting the first position on fuel selector valve also selects the first position on the outlet valve and selecting the second position on the fuel selector valve also selects the second position on the outlet valve. 8. A dual fuel heating system comprising: a regulator housing comprising: first and second inlets;first and second outlets;a first pressure regulator to regulate a flow of a first fuel; anda second pressure regulator to regulate a flow of a second fuel different from the first fuel and at a higher pressure than the first fuel;wherein the regulator housing defining two separate flow paths therethrough: a first flow path configured such that the first fuel enters the regulator housing through the first inlet, then passes through the first pressure regulator before exiting the regulator housing at the first outlet; anda second flow path configured such that the second fuel enters the regulator housing through the second inlet, then passes through the second pressure regulator before exiting the regulator housing through the second outlet;a fuel selector valve having a first position configured to permit a flow of the first fuel from the first outlet of the first flow path through the fuel selector valve and to prevent a flow from the second outlet of the second flow path therethrough and having a second position configured to permit a flow of the second fuel from the second outlet of the second pressure regulator through the fuel selector valve and to prevent a flow from the first outlet of the first flow path therethrough,wherein the control valve comprises at least one of a manual valve, a thermostat valve, an AC solenoid, and a DC solenoid. 9. The dual fuel heating system of claim 8, wherein the first fuel comprises natural gas and the second fuel comprises liquid propane. 10. The dual fuel heating system of claim 8, wherein the dual fuel heating system comprises part of a heater, oven, dryer or boiler. 11. The dual fuel heating system of claim 8, wherein the first pressure regulator is configured to provide a pressure in the range from about 3 inches of water column to about 6 inches of water column. 12. The dual fuel heating system of claim 8, wherein the second pressure regulator is configured to provide a pressure in the range from about 8 inches of water column to about 12 inches of water column. 13. The dual fuel heating system of claim 8, further comprising an outlet valve having a set of inlets and first and second sets of outlets wherein in a first position of the outlet valve flow is permitted from the control valve into the set of inlets to the first set of outlets and in a second position of the outlet valve flow is permitted into the set of inlets through the outlet valve to the second set of outlets. 14. The dual fuel heating system of claim 13, wherein the fuel selector valve and the outlet valve are coupled together such that selecting the first position on fuel selector valve also selects the first position on the outlet valve and selecting the second position on the fuel selector valve also selects the second position on the outlet valve. 15. A dual fuel heating system comprising: a first pressure regulator to regulate a flow of a first fuel, the first pressure regulator having a first inlet and a first outlet;a second pressure regulator to regulate a flow of a second fuel different from the first fuel and at a higher pressure than the first fuel, the second pressure regulator having a second inlet and a second outlet;a fuel selector valve having a first position configured to permit a flow of the first fuel from the first outlet of the first pressure regulator through the fuel selector valve and to prevent a flow from the second outlet of the second pressure regulator through the fuel selector valve and having a second position configured to permit a flow of the second fuel from the second outlet of the second pressure regulator through the fuel selector valve and to prevent a flow from the first outlet of the first pressure regulator through the fuel selector valve; anda control valve configured to divide the flow from the fuel selector valve of either the first fuel or the second fuel into two separate flows leaving the control valve and to control an amount of flow in each of the two separate flows leaving the control valve,wherein the first fuel comprises natural gas and the second fuel comprises liquid propane. 16. The dual fuel heating system of claim 15, wherein the control valve comprises at least one of a manual valve, a thermostat valve, an AC solenoid, and a DC solenoid. 17. The dual fuel heating system of claim 15, wherein the first pressure regulator is configured to provide a pressure in the range from about 3 inches of water column to about 6 inches of water column. 18. The dual fuel heating system of claim 17, wherein the second pressure regulator is configured to provide a pressure in the range from about 8 inches of water column to about 12 inches of water column. 19. The dual fuel heating system of claim 15, further comprising an outlet valve having a set of inlets and first and second sets of outlets wherein in a first position of the outlet valve flow is permitted from the control valve into the set of inlets to the first set of outlets and in a second position of the outlet valve flow is permitted into the set of inlets through the outlet valve to the second set of outlets. 20. The dual fuel heating system of claim 19, wherein the fuel selector valve and the outlet valve are coupled together such that selecting the first position on fuel selector valve also selects the first position on the outlet valve and selecting the second position on the fuel selector valve also selects the second position on the outlet valve.

이 특허에 인용된 특허 (218)

이 특허를 인용한 특허 (1)

Deng, David, Dual fuel heating assembly with reset switch.

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Dual fuel heating system

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Dual fuel heating system

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