[특허]Portable refrigeration unit for palletized product

Hussmann Corporation

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Portable refrigeration unit for palletized product

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25D-003/08 F25D-015/00 F25D-019/00 F25D-017/06
출원번호	US-0797432 (2013-03-12)
등록번호	US-9459037 (2016-10-04)
발명자 / 주소	Wood, Diego Mandelcorn, Timothy Downs, Steve W.
출원인 / 주소	Hussmann Corporation
대리인 / 주소	Michael Best & Friedrich LLP
인용정보	피인용 횟수 : 0 인용 특허 : 15

초록
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A portable refrigeration unit for cooling palletized products disposed within a racking system. The portable refrigeration unit includes a case and a refrigeration system disposed in the case. The case includes a bottom wall, a top wall, and side walls. The case is configured to be supported by the racking system above a pallet of products positioned below the case. The refrigeration system includes a compressor, a condenser, an expansion device, and an evaporator connected in series. The refrigeration system includes an evaporator fan configured to draw...

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1. A portable refrigeration unit for cooling palletized products disposed within a racking system, the portable refrigeration unit comprising: a case including a bottom wall, a top wall, and side walls, the case configured to be supported by the racking system above a pallet of products positioned below the case;rails extending from two sides of the case, each rail adjustably and slidably extensible to contact the racking system to support the case above the pallet of products, and each rail having a hook portion to engage the racking system;a refrigeration system disposed within the case, the refrigeration system including a compressor, a condenser, an expansion device, and an evaporator connected in series, the refrigeration system includes an evaporator fan configured to draw in air from below the case, move the air through the evaporator, and then discharge the air through the bottom wall such that the cooled air passes over the products below the case to cool the products below the case; anda return duct coupled to the case and in fluid communication with the evaporator fan, the return duct extendable and retractable below the case between a first position and a second position,wherein the evaporator fan is configured to draw air from below the case through the return duct. 2. The portable refrigeration unit of claim 1, wherein the case includes a rigid casing including a ribbed top wall and rounded corners adjoining adjacent walls. 3. The portable refrigeration unit of claim 1, further comprising a curtain suspended below the case and configured to surround the product of products to define a product cooling area around the product. 4. The portable refrigeration unit of claim 3, wherein the curtain is segmented to allow access to the product from outside the curtain. 5. The portable refrigeration unit of claim 1, wherein the case includes apertures for receiving forks of a forklift, the case configured to be lifted by the forklift when the forks are positioned within the apertures. 6. The portable refrigeration unit of claim 1, wherein the return duct includes an inlet positioned adjacent the pallet of products when the return duct is extended from the first position to the second position. 7. The portable refrigeration unit of claim 1, wherein the air discharged through the bottom wall passes through perforations formed in the bottom wall such that the discharged air is evenly distributed over a top of the pallet of products. 8. The portable refrigeration unit of claim 1, wherein the return duct defines an airflow path that is substantially parallel to the air discharged through the bottom wall. 9. The portable refrigeration unit of claim 1, wherein the air duct is coupled to the bottom wall of the case adjacent a first side wall of the case, and wherein the air discharged through the bottom wall exits the refrigeration system adjacent a second side wall opposite the first side wall of the case. 10. A portable refrigeration system comprising: a racking system supported on a floor;a pallet of products to be cooled disposed within the racking system; anda portable refrigeration unit including a case including a bottom wall, a top wall, and side walls;rails extending from two sides of the case, each rail adjustably and slidably extensible to contact the racking system to support the case above the pallet of products, and each rail having a hook portion to engage the racking system;a refrigeration system disposed within the case, the refrigeration system including a compressor, a condenser, an expansion device, and an evaporator connected in series, the refrigeration system includes an evaporator fan configured to draw in air from below the case, move the air through the evaporator, and then discharge the air through the bottom wall such that the cooled air passes over the products below the case to cool the products; anda return duct coupled to the case and in fluid communication with the evaporator fan, the return duct extendable and retractable below the case between a first position and a second position,wherein the evaporator fan is configured to draw air from below the case through the return duct. 11. The portable refrigeration system of claim 10, wherein the case includes a rigid casing including a ribbed top wall and rounded corners adjoining adjacent walls. 12. The portable refrigeration system of claim 10, further comprising a curtain suspended below the case and configured to surround the product of products to define a product cooling area around the product. 13. The portable refrigeration system of claim 12, wherein the curtain is segmented to allow access to the product from outside the curtain. 14. The portable refrigeration system of claim 10, wherein the case includes apertures for receiving forks of a forklift, the case configured to be lifted by the forklift when the forks are positioned within the apertures. 15. The portable refrigeration unit of claim 10, wherein the return duct includes an inlet positioned adjacent the pallet of products when the return duct is extended from the first position to the second position. 16. A method of cooling palletized products disposed within a racking system, the method comprising: providing a racking system;supporting the racking system on a floor;placing a pallet of product to be cooled on the floor within the racking system;positioning a portable refrigeration unit above the pallet of product to be cooled;supporting the portable refrigeration unit with the racking system via rails extending from two sides of a case of the portable refrigeration unit and having hook portions engageable with the racking system, wherein the supporting step includes extending the rails away from the case and hanging the rails onto the racking system;extending a return duct from a first position to a second position below the case, the return duct in fluid communication with the portable refrigeration unit;discharging cooled air from the portable refrigeration unit into a space below the portable refrigeration unit;passing the cooled air over the products to cool the products; andreturning at least a portion of the cooled air to the portable refrigeration unit from the space below the portable refrigeration unit via the return duct. 17. The method of claim 16, further comprising discharging cooled air from perforations distributed across a bottom wall of the portable refrigeration unit into a space below the portable refrigeration unit. 18. The method of claim 16, further comprising plugging the portable refrigeration unit into a 120 Volt A/C outlet. 19. The method of claim 16, further comprising positioning a curtain below the portable refrigeration unit and around the pallet. 20. The method of claim 19, further comprising magnetically attaching the curtain to the bottom of the portable refrigeration unit. 21. The method of claim 16, further comprising inserting forks of a forklift into the portable refrigeration unit, lifting the portable refrigeration unit above the pallet of products to be cooled, and removing the forks from the portable refrigeration unit after the portable refrigeration system is supported with racking system. 22. The method of claim 16, further comprising adjusting the height of the portable refrigeration unit on the racking system. 23. The method of claim 16, further comprising retracting the return duct from the second position to the first position.

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Portable refrigeration unit for palletized product

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Portable refrigeration unit for palletized product

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