[특허]Device and method for enhancing heat exchanger airflow

THERMO KING CORPORATION

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Device and method for enhancing heat exchanger airflow

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60P-003/20 B60H-001/32 B62D-035/00
출원번호	US-0653696 (2013-12-31)
등록번호	US-10226985 (2019-03-12)
국제출원번호	PCT/US2013/078536 (2013-12-31)
국제공개번호	WO2014/106264 (2014-07-03)
발명자 / 주소	Lawrence, Wilson Samuel Jesudason Dykes, David John Balakrishna, Abhijith Arneson, Christopher Thomas
출원인 / 주소	THERMO KING CORPORATION
대리인 / 주소	Hamre, Schumann, Mueller & Larson, P.C.
인용정보	피인용 횟수 : 0 인용 특허 : 17

초록

Devices and methods for enhancing heat exchanger airflow in a transport refrigeration system (TRS) of a refrigerated transport unit are provided. In particular, a fairing is provided on a top surface of a TRU to shield the TRU from an adverse effect of wind (e.g., ram air) and build a negative pressure at a heat exchanger fan delivery side of the TRU. The angle, shape and height of the fairing can be optimized to achieve a desired heat exchanger airflow through condenser coil(s), a radiator and/or intercooler of the TRU during operation.

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1. A transport refrigeration unit (TRU) attached to a transport unit, the TRU comprising: a housing having a top side, wherein the top side faces a direction that is perpendicular to a travelling direction of the transport unit;a heat exchanger fan configured to discharge air from within the housing, the heat exchanger fan including a heat exchanger fan outlet disposed on the top side of housing and protruding out of the top side of the housing, wherein the heat exchanger fan outlet is configured to direct air from within the housing to out of the housing in a direction perpendicular to a travelling direction of the transport unit; anda fairing that includes a center section disposed on the top side of the housing at a location that faces the direction that is perpendicular to the travelling direction of the transport unit and extends away from the top side-of the housing, the fairing configured to divert ram air passing over the heat exchanger fan outlet during transport of the transport unit and configured to mitigate an increase in static air pressure at the heat exchanger fan outlet,wherein the housing includes a heat exchanger compartment having a door section with a door for providing access inside the housing, the door section being provided on a front side of the housing, wherein the door section includes an upper lip that extends over a portion of the top side of the housing that faces the direction that is perpendicular to the travelling direction of the transport unit, andwherein the center section of the fairing is positioned on the top side of the housing at the location that faces the direction that is perpendicular to the travelling direction of the transport unit in back of the door section so as to not interfere with the door section when the door is opened. 2. The TRU of claim 1, wherein the fairing is disposed on the top side of the housing so as to surround a portion of the heat exchanger fan outlet. 3. The TRU of any of claim 1, wherein the fairing is configured to have a height sufficient to divert ram air passing over the heat exchanger outlet fan but not extend above a height of the transport unit. 4. The TRU of claim 1, wherein the fairing is composed of sheet metal. 5. The TRU of claim 1, wherein the fairing is composed of rubber. 6. The TRU of claim 1, wherein the height of the fairing is between 2 to 4 inches. 7. The TRU of claim 1, wherein the fairing is configured to extend from the top side of the housing at an angle A°, wherein the angle A° is between 90° and 170° from a front side of the TRU to a rear side of the TRU. 8. The TRU of claim 1, wherein the housing of the TRU includes a front side configured to face a direction away from the transport unit, and wherein the fairing is disposed on the top side adjacent a front edge of the TRU between the top side and the front side of the housing. 9. The TRU of claim 1, wherein the fairing includes a center section, a first curved section at a first end of the center section, and a second curved section at a second end of the center section, wherein the first curved section is configured to curve around the heat exchanger fan outlet and the second curved section is configured to curve around a second heat exchanger fan outlet, andwherein the center section is disposed on the top side of the housing in back of a door section of the housing. 10. The TRU of claim 1, wherein the fairing includes a plurality of flaps extending from a bottom edge of the fairing and configured to rest on a top side of the housing. 11. A refrigerated transport unit, comprising: a transport unit;a transport refrigeration unit (TRU) attached to a side of the transport unit, the TRU including: a housing having a top side, wherein the top side faces a direction that is perpendicular to a travelling direction of the transport unit,a heat exchanger fan configured to discharge air from within the housing, the heat exchanger fan including a heat exchanger fan outlet disposed on the top side of housing and protruding out of the top side of the housing, wherein the heat exchanger fan outlet is configured to direct air from within the housing to out of the housing in a direction perpendicular to a travelling direction of the transport unit, anda fairing that includes a center section disposed on the top side of the housing at a location where the top side faces the direction that is perpendicular to the travelling direction of the transport unit and extends away from the top side of the housing, the fairing configured to divert ram air passing over the heat exchanger fan outlet during transport of the transport unit and configured to mitigate an increase in static air pressure at the heat exchanger fan outlet,wherein the housing includes a heat exchanger compartment having a door section with a door for providing access inside the housing, the door section being provided on a front side of the housing, wherein the door section includes an upper lip that extends over a portion of the top side of the housing that faces the direction that is perpendicular to the travelling direction of the transport unit, andwherein the center section of the fairing is positioned on the top side of the housing at the location that faces the direction that is perpendicular to the travelling direction of the transport unit in back of the door section so as to not interfere with the door section when the door is opened. 12. The refrigerated transport unit of claim 11, wherein the fairing is disposed on the top side of the housing so as to surround a portion of the heat exchanger fan outlet. 13. The refrigerated transport unit of claim 11, wherein the fairing is configured to have a height sufficient to divert ram air passing over the heat exchanger outlet fan but not extend above a height of the transport unit. 14. The refrigerated transport unit of claim 11, wherein the fairing is composed of sheet metal. 15. The refrigerated transport unit of claim 11, wherein the fairing is composed of rubber. 16. The refrigerated transport unit of any of claim 11, wherein the height of the fairing is between 2 to 4 inches. 17. The refrigerated transport unit of any of claim11, wherein the TRU is attached to a front side of the transport unit and the fairing is configured to extend from the top side of the housing at an angle A°, wherein the angle A° is between 90° and 170° from the front side of the transport unit to a rear side of the transport unit. 18. The refrigerated transport unit of any of claim 11, wherein the housing of the TRU includes a front side configured to face a direction away from the transport unit, and wherein the fairing is disposed on the top side adjacent a front edge of the TRU between the top side and the front side of the housing. 19. The refrigerated transport unit of claim 11, wherein the fairing includes a center section, a first curved section at a first end of the center section, and a second curved section at a second end of the center section, wherein the first curved section is configured to curve around the heat exchanger fan outlet and the second curved section is configured to curve around a second heat exchanger fan outlet, andwherein the center section is disposed on the top side of the housing in back of a door section of the housing. 20. The TRU of claim 11, wherein the fairing includes a plurality of flaps extending from a bottom edge of the fairing and configured to rest on a top side of the housing.

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Device and method for enhancing heat exchanger airflow

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