Air conditioner using inflammable refrigerant
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IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F25B-041/06
F25B-001/00
출원번호
US-0355954
(1999-08-12)
우선권정보
JP-0363492 (1997-12-16)
국제출원번호
PCT/JP98/05656
(1998-12-15)
국제공개번호
WO99/31444
(1999-06-24)
발명자
/ 주소
Fujitaka, Akira
Kobayashi, Yoshinori
Tachigori, Riko
출원인 / 주소
Matsushita Electric Industrial Co., Ltd.
대리인 / 주소
Armstrong, Westerman & Hattori, LLP
인용정보
피인용 횟수 :
3인용 특허 :
6
초록▼
In an air conditioner using a flammable refrigerant of the present invention, an inner diameter of a liquid-side connecting pipe is reduced to less than 42.5% of that of a gas-side connecting pipe. By reducing the inner diameter of the pipe in which a liquid refrigerant of the air conditioner is red
In an air conditioner using a flammable refrigerant of the present invention, an inner diameter of a liquid-side connecting pipe is reduced to less than 42.5% of that of a gas-side connecting pipe. By reducing the inner diameter of the pipe in which a liquid refrigerant of the air conditioner is reduced, it is possible to reduce the amount of refrigerant to be charged into the system without decreasing the capacity and the efficiency.
대표청구항▼
In an air conditioner using a flammable refrigerant of the present invention, an inner diameter of a liquid-side connecting pipe is reduced to less than 42.5% of that of a gas-side connecting pipe. By reducing the inner diameter of the pipe in which a liquid refrigerant of the air conditioner is red
In an air conditioner using a flammable refrigerant of the present invention, an inner diameter of a liquid-side connecting pipe is reduced to less than 42.5% of that of a gas-side connecting pipe. By reducing the inner diameter of the pipe in which a liquid refrigerant of the air conditioner is reduced, it is possible to reduce the amount of refrigerant to be charged into the system without decreasing the capacity and the efficiency. the coolant occur. 13. The method according to claim 12, wherein coolant sprayed onto the first surface which boils and/or evaporates is released into the environment. 14. The method according to claim 2, wherein the first surface is located within a sealed housing and wherein spraying an atomized liquid coolant onto the first surface is within the sealed housing, wherein the method further comprises: releasing the heat absorbed by the coolant from the first surface via a condenser. 15. The method according to claim 14, wherein the condenser comprises a heat exchanger. 16. The method according to claim 14, wherein the condenser operates via a subcooled mist of the coolant, wherein the sub-cooled mist of the coolant is sub-cooled below the saturation temperature of the coolant within the sealed housing via a heat exchanger, wherein the heat exchanger is outside the sealed housing, wherein the subcooled mist is sprayed within the sealed housing so as to contact saturated vapor of the coolant evaporating from the first surface, wherein heat is transferred from the saturated vapor to the sub-cooled mist such that the saturated vapor condenses on the sub-cooled mist and flows to a reservoir of the coolant. 17. The method according to claim 1, wherein the partition wall shared by a subsection with an adjacent subsection substantially eliminates the flow of coolant from the subsection to the adjacent subsection and the flow of coolant from the adjacent subsection to the subsection. 18. The method according to claim 1, wherein the piece of material is an interface plate comprising a second surface, wherein the second surface is in thermal contact with the heat source. 19. The method according to claim 1, wherein the piece of material is integral with the heat source. 20. The method according to claim 1, wherein the plurality of subsections each share a partition wall with each adjacent subsection. 21. The method according to claim 20, wherein the partition walls are interconnected so as to enclose a portion of the plurality of subsections with the interconnected partition walls. 22. The method according to claim 21, wherein the interconnected partition walls form a pattern such that the portion of the plurality of subsections are enclosed by polygonal shaped sections of the interconnected partition walls. 23. The method according to claim 22, wherein the portion of the plurality of subsections are enclosed by rectangular shaped sections of the interconnected partition walls. 24. The method according to claim 23, wherein the portion of the plurality of subsections are enclosed by square shaped sections of the interconnected partition walls. 25. The method according to claim 22, wherein the portion of the plurality of subsections are enclosed by hexagonal shaped sections of the interconnected partition walls. 26. The method according to claim 1, wherein spraying an atomized liquid coolant onto the first surface comprises spraying an atomized liquid coolant onto the first surface via a single spray nozzle such that the single spray nozzle sprays the atomized liquid coolant onto each subsection of the first surface. 27. The method according to claim 1, wherein spraying an atomized liquid coolant onto the first surface comprises spraying an atomized liquid coolant onto the first surface via a plurality of spray nozzles such that the plurality of spray nozzles sprays the atomized liquid coolant onto each subsection of the first surface. 28. The method according to claim 27, wherein each of the plurality of spray nozzles sprays the atomized liquid coolant onto a corresponding subsection of the first surface. 29. The method according to claim 1, wherein each subsection has a surface area of about 2 cm2or less. 30. The method according to claim 29, wherein each subsection has a surface area between about 0.5 cm2and about 2 cm2. 31. The method according to claim 1, wherein the partition walls protrude at l east about 0.2 cm from the first surface. 32. The method according to claim 31, wherein the partition walls protrude between about 0.2 cm and about 2 cm from the first surface. 33. An apparatus for removing heat from a heat source, comprising: an interface plate, the interface plate comprising a first surface and a second surface, wherein the second surface is located in thermal contact with a heat source; a spray nozzle which directs a spray pattern of the liquid coolant onto the first surface, wherein the liquid coolant sprayed onto the first surface absorbs heat from the first surface and carries the absorbed heat away as the coolant leaves the first surface, wherein the first surface comprises a plurality of subsections wherein each subsection shares a partition wall with at least one adjacent subsection, wherein the partition wall shared by a subsection with an adjacent subsection reduces the flow of coolant from the subsection to the adjacent subsection and the flow of coolant from the adjacent subsection to the subsection. 34. The apparatus according to claim 33, wherein the spray nozzle atomizes the liquid coolant which is sprayed onto the first surface. 35. The apparatus according to claim 34 wherein the atomized liquid coolant sprayed onto the first surface comprises droplets having mean diameters in a range from about 10 microns to about 200 microns and velocities in a range from about 5 meters per second to about 50 meters per second. 36. The apparatus according to claim 34, wherein the atomized liquid coolant sprayed onto the first surface comprises spraying droplets having a size and velocity such that the effects of gravity are negligible. 37. The apparatus according to claim 34, wherein the spray nozzle comprises a pressure atomizer nozzle, wherein pressurized liquid is inputted to the pressure atomizer nozzle. 38. The apparatus according to claim 34, wherein the spray nozzle comprises a vapor assist nozzle, wherein pressurized liquid coolant and pressurized vapor coolant is inputted to the vapor assist nozzle. 39. The apparatus according to claim 34, wherein the spray nozzle comprises a pressurized vapor nozzle, wherein liquid coolant and vapor coolant is inputted to the pressurized vapor nozzle. 40. The apparatus according to claim 34, wherein the spray nozzle comprises a vapor atomizing nozzle, wherein flow of vapor through the vapor atomizing nozzle creates a venturi draft on a liquid coolant source inputted to the vapor atomizing nozzle. 41. The apparatus according to claim 34, wherein the atomized liquid coolant sprayed onto the first surface forms a thin film of coolant on the first surface. 42. The apparatus according to claim 34, wherein the coolant is sprayed such that when the atomized liquid coolant is sprayed onto the first surface the coolant can begin to boil. 43. The apparatus according to claim 42, wherein a portion of the coolant which is sprayed onto the first surface evaporates and a remaining portion of the coolant which is sprayed onto the first surface exits the first surface out of the subsection due to the momentum of the coolant. 44. The apparatus according to claim 34, wherein the atomized liquid coolant sprayed onto the first surface experiences single phase convection, boiling, and/or free surface evaporation of the coolant. 45. The apparatus according to claim 44, wherein coolant sprayed onto the first surface which boils and/or evaporates is released into the environment. 46. The apparatus according to claim 34, further comprising a sealed housing and a condenser, wherein the first surface is located within the sealed housing and wherein the atomized liquid coolant is sprayed onto the first surface within the sealed housing, wherein: the heat absorbed by the coolant from the first surface is released via the condenser. 47. The apparatus according to claim 46, wherein the condenser comprises a heat exchanger. 48. The apparatus according to claim 46, further comprising a heat exchanger, and a reservoir of coolant wherein the condenser operates via a sub-cooled mist of the coolant, wherein the sub-cooled mist of the coolant is sub-cooled below the saturation temperature of the coolant within the sealed housing via the heat exchanger, wherein the heat exchanger is outside the sealed housing, wherein the sub-cooled mist is sprayed within the sealed housing so as to contact saturated vapor of the coolant evaporating from the first surface, wherein heat is transferred from the saturated vapor to the sub-cooled mist such that the saturated vapor condenses on the sub-cooled mist and flows to the reservoir of the coolant. 49. The apparatus according to claim 33, wherein the partition wall shared by a subsection with an adjacent subsection substantially eliminates the flow of coolant from the subsection to the adjacent subsection and the flow of coolant from the adjacent subsection to the subsection. 50. The apparatus according to claim 33, wherein the piece of material is an interface plate comprising a second surface, wherein the second surface is in thermal contact with the heat source. 51. The apparatus according to claim 33, wherein the piece of material is integral with the heat source. 52. The apparatus according to claim 33, wherein the plurality of subsections each share a partition wall with each adjacent subsection. 53. The apparatus according to claim 52, wherein the partition walls are interconnected so as to enclose a portion of the plurality of subsections with the interconnected partition walls. 54. The apparatus according to claim 53, wherein the interconnected partition walls form a pattern such that the portion of the plurality of subsections are enclosed by polygonal shaped sections of the interconnected partition walls. 55. The apparatus according to claim 54, wherein the portion of the plurality of subsections are enclosed by rectangular shaped sections of the interconnected partition walls. 56. The apparatus according to claim 55, wherein the portion of the plurality of subsections are enclosed by square shaped sections of the interconnected partition walls. 57. The apparatus according to claim 54, wherein the portion of the plurality of subsections are enclosed by hexagonal shaped sections of the interconnected partition walls. 58. The apparatus according to claim 33, wherein the spray nozzle comprises a single spray nozzle such that the single spray nozzle sprays the atomized liquid coolant onto each subsection of the first surface. 59. The apparatus according to claim 33, wherein the spray nozzle comprises a plurality of spray nozzles such that the plurality of spray nozzles sprays the atomized liquid coolant onto each subsection of the first surface. 60. The apparatus according to claim 59, wherein each of the plurality of spray nozzles sprays the atomized liquid coolant onto a corresponding subsection of the first surface. 61. The apparatus according to claim 33, wherein each subsection has a surface area of about 2 cm2or less. 62. The apparatus according to claim 61, wherein each subsection has a surface area between about 0.5 cm2and about 2 cm2. 63. The apparatus according to claim 33, wherein the partition walls protrude at least about 0.2 cm from the first surface. 64. The apparatus according to claim 63, wherein the partition walls protrude between about 0.2 cm and about 2 cm from the first surface.
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이 특허에 인용된 특허 (6)
Sakakibara Hisayoshi,JPX ; Nishida Shin,JPX, Air conditioning apparatus for vehicle, using a flammable refrigerant.
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