[특허]Flameless heating system

MAC, Inc.

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Flameless heating system

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60H-001/02 F24H-009/20 F24H-001/00 B60H-001/03 B60H-001/00 F24H-001/06 F24H-003/08 B60H-001/20 F24D-001/04 B60H-001/14 F24H-001/08 F24J-003/00
출원번호	US-0458489 (2012-04-27)
등록번호	US-9228760 (2016-01-05)
발명자 / 주소	Welle, Travis G. Leingang, Mark R.
출원인 / 주소	MAC, Inc.
대리인 / 주소	Merchant & Gould P.C.
인용정보	피인용 횟수 : 2 인용 특허 : 57

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A mobile heating system is disclosed. In one embodiment, the system includes an enclosure defining a plenum that houses a fan and an internal combustion engine. The heating system also includes a hydraulic circuit including a hydraulic pump operably coupled to the internal combustion engine and a first heat exchanger located in the plenum and in fluid communication with the hydraulic pump. The hydraulic circuit also includes a hydraulic motor operably coupled to the fan wherein the hydraulic motor is in fluid communication with and driven by the hydraulic pump. A first valve is disposed between the hydraulic pump and the heat exchanger and is configured to restrict fluid flow and to increase a fluid pumping pressure of the hydraulic pump. A second valve is located upstream of the first valve and is configured to selectively direct hydraulic fluid between the first valve and the hydraulic motor.

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1. A mobile heating system comprising: a. an enclosure supported by a mobile chassis, the enclosure defining an air plenum having an air inlet and an air outlet;b. a fan disposed in the air plenum, the fan being configured to move an air flow stream from the air inlet to the air outlet of the enclosure;c. an internal combustion engine disposed in the air plenum, the internal combustion engine having an output shaft;d. a hydraulic circuit including: i. a hydraulic pump operably coupled to the output shaft of the internal combustion engine;ii. a first heat exchanger located in the enclosure air plenum and in fluid communication with the hydraulic pump, the first heat exchanger being configured to transfer heat from fluid in the hydraulic circuit to the air flow stream;iii. a second heat exchanger located in the enclosure air plenum, the second heat exchanger being configured to transfer heat from an engine exhaust air stream to the air flow stream;iv. a hydraulic motor operably coupled to the fan, the hydraulic motor being in fluid communication with and driven by the hydraulic pump;v. a first valve disposed between the hydraulic pump and the heat exchanger, the first valve being configured to resist fluid flow and to increase a fluid pumping pressure of the hydraulic pump; andvi. a second valve upstream of the first valve, the second valve being configured to selectively direct hydraulic fluid between the first valve and the hydraulic motor. 2. The mobile heating system of claim 1, further comprising a control system configured to operate the second valve to maintain a temperature set point of the air flow stream. 3. The mobile heating system of claim 2, wherein the control system further includes a user interface. 4. The mobile heating system of claim 3, wherein the user interface is configured to override the position of the first valve to a set position. 5. The mobile heating system of claim 1, further comprising a third valve upstream of the second valve, the third valve being configured to bypass hydraulic fluid around the first and second valves to the first heat exchanger. 6. The mobile heating system of claim 5, further comprising a fourth valve in parallel with the first valve, the fourth valve being configured to bypass hydraulic fluid around the first valve to the first heat exchanger. 7. The mobile heating system of claim 6, wherein the first valve, the second valve, the third valve, and the fourth valve are provided in a single manifold block. 8. The mobile heating system of claim 1, wherein the second heat exchanger includes a single tube having a plurality of offset straight sections. 9. The mobile heating system of claim 1, wherein the internal combustion engine is controlled to maintain a generally constant rotational speed. 10. A mobile heating system comprising: a. an enclosure supported by a mobile chassis, the enclosure defining an air plenum having an air inlet and an air outlet;b. a fan disposed in the air plenum, the fan being configured to move an air flow stream from the air inlet to the air outlet of the enclosure;c. an internal combustion engine disposed in the air plenum, the internal combustion engine having an output shaft; andd. a hydraulic circuit including: i. a hydraulic pump operably coupled to the output shaft of the internal combustion engine;ii. a first heat exchanger located in the enclosure air plenum and in fluid communication with the hydraulic pump, the first heat exchanger being configured to transfer heat from fluid in the hydraulic circuit to the air flow stream;iii. a second heat exchanger located in the enclosure air plenum, the second heat exchanger being configured to transfer heat from an engine exhaust air stream to the heating air flow stream;iv. a third heat exchanger located in the enclosure air plenum, the third heat exchanger being configured to transfer heat from an internal combustion engine coolant to the heating air flow stream;v. a hydraulic motor operably coupled to the fan, the hydraulic motor being in fluid communication with and driven by the hydraulic pump;vi. a first valve disposed between the hydraulic pump and the heat exchanger, the first valve being configured to resist fluid flow and to increase a fluid pumping pressure of the hydraulic pump; andvii. a second valve upstream of the first valve, the second valve being configured to selectively direct hydraulic fluid between the first valve and the hydraulic motor. 11. The mobile heating system of claim 10, wherein the overall system efficiency is between about 75% and about 80%. 12. The mobile heating system of claim 10, wherein the total fuel consumption for system is about 260,000 BTU/hour and the total output is about 200,000 BTU/hour. 13. A mobile heating system comprising: a. an enclosure supported by a mobile chassis, the enclosure defining an air plenum having an air inlet and an air outlet;b. a fan disposed in the air plenum, the fan being configured to move an air flow stream from the air inlet to the air outlet of the enclosure;c. an internal combustion engine disposed in the air plenum, the internal combustion engine having an output shaft; andd. a hydraulic circuit including: i. a hydraulic pump operably coupled to the output shaft of the internal combustion engine;ii. a first heat exchanger located in the enclosure air plenum and in fluid communication with the hydraulic pump, the first heat exchanger being configured to transfer heat from fluid in the hydraulic circuit to the air flow stream;iii. a second heat exchanger located in the enclosure air plenum, the second heat exchanger being configured to transfer heat from an engine exhaust air stream to the heating air flow stream;iv. a third heat exchanger located in the enclosure air plenum, the third heat exchanger being configured to transfer heat from an internal combustion engine coolant to the heating air flow stream;v. a hydraulic motor operably coupled to the fan, the hydraulic motor being in fluid communication with and driven by the hydraulic pump;vi. a first valve disposed between the hydraulic pump and the heat exchanger, the first valve being configured to resist fluid flow and to increase a fluid pumping pressure of the hydraulic pump;vii. a second valve upstream of the first valve, the second valve being configured to selectively direct hydraulic fluid between the first valve and the hydraulic motor;viii. a third valve upstream of the second valve, the third valve being configured to bypass hydraulic fluid around the first and second valves to the first heat exchanger; andix. a fourth valve in parallel with the first valve, the fourth valve being configured to bypass hydraulic fluid around the first valve to the first heat exchanger. 14. The mobile heating system of claim 13, wherein the overall mobile heating system efficiency is between about 75% and about 80%. 15. The mobile heating system of claim 13, wherein the total fuel consumption of the mobile heating system is about 260,000 BTU/hour and the total output of the mobile heating system is about 200,000 BTU/hour. 16. A flameless mobile heating system comprising: a. an enclosure supported by a mobile chassis having at least a pair of wheels and a hitch such that the mobile heating system can be towed by a vehicle, the enclosure defining an air flow path having an air inlet and an air outlet;b. a first heat source located within the enclosure air flow path and between the air inlet and the air outlet, the first heat source being an internal combustion engine;c. a second heat source located within the enclosure air flow path and between the air inlet and the first heat source, the second heat source being a radiator associated with the internal combustion engine;d. a third heat source located within the enclosure air flow path and between the air inlet and air outlet, the third heat source being configured to receive exhaust from the internal combustion engine;e. a fourth heat source located within the enclosure air flow path and between the first heat source and the air outlet, the fourth heat source being configured to deliver heat to the air flow path via oil heated by a hydraulic circuit powered by the internal combustion engine, the hydraulic circuit including a hydraulic pump, a hydraulic motor, and first and second valves, the first valve being configured to resist flow of the oil to increase a fluid pumping pressure of the hydraulic pump such that a temperature of the oil is increased, the second valve being upstream of the first valve, the second valve being configured to selectively direct hydraulic fluid between the first valve and the hydraulic motor; andf. a fan operably coupled to the hydraulic motor and configured to transport an air flow stream from the enclosure air flow path inlet, through the first, second, third, and fourth heat sources, and out of the enclosure air flow path outlet. 17. The flameless mobile heating system of claim 16, further comprising an electronic controller, wherein the electronic controller is operable to electronically control the first valve to adjust the resistance of the oil flow and to electronically control the second valve to adjust the flow of the hydraulic fluid to the hydraulic motor.

이 특허에 인용된 특허 (57)

이 특허를 인용한 특허 피인용횟수: 2

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Flameless heating system

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