# US 2014/0151003 A1 · Air-based cooling for data center rack > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0151003 A1 - Document ID: US20140151003A1 - Status: Published application - Kind: A1 - Application number: 13/889,181 - Filed: 2013-05-07 - Published: 2014-06-05 - Earliest claimed: 2007-03-14 - Assignees: Zonit Structured Solutions, LLC - Applicants: Zonit Structured Solutions, LLC - Inventors: Steve Chapel; William Pachoud - Web page: https://patentgrep.com/patent/US20140151003A1 ## CPC - F16L 37/38: with fluid cut-off means in only one of two pipe-end fittings - F16K 11/0785: {the movable closure member being pivotally supported at one point and being linked to the operating lever at only one other point} - F16L 9/19: Multi-channel pipes or pipe assemblies - F28D 7/10: the conduits being arranged one within the other, e.g. concentrically {(multiple wall tubes for leak detection F28F1/003)} - H05K 7/20745: {within rooms for removing heat from cabinets, e.g. by air conditioning device} - H05K 7/20836: {Thermal management, e.g. server temperature control} - F16L 37/46: with a gate valve or sliding valve - F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL - F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)} - F28D: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract A high-velocity low-pressure cooling system (100), especially suited for data center applications, includes an air coolant loop (102), a non-air coolant loop (104) and a cooler unit (126) for heat transfer between the loops (102 and 104). The air loop (102) is used to chill ambient air that is blown across heat transfer surfaces of equipment mounted in data center racks (110). In this manner, effective cooling is provided using a coolant that is benign in data center environments. ## Claims ### Claim at position 1 1-20. (canceled) ### Claim 21 A conduit apparatus for use in a closed-loop, air-based coolant circuit, comprising: an inner conduit defining a passageway for the coolant air; an outer conduit encompassing the inner conduit; and spacing structure for maintaining a spacing between an outer surface of said inner conduit and an inner surface of said outer conduit, said spacing accommodating a volume of insulating air. ### Claim 22 (depends on 21) An apparatus as set forth in claim 21, wherein said outer conduit defines a return passageway for warmed coolant air. ### Claim 23 (depends on 21) An apparatus as set forth in claim 21, further comprising a conductive trace embedded in said outer conduit ### Claim 24 (depends on 21) A conduit apparatus as set forth in claim 21, further comprising an insulating material disposed on an outer surface of said outer conduit. ### Claim at position 6 25-38. (canceled) ### Claim 39 A conduit assembly, comprising: a first conduit having a first electrically conductive trace embedded therein, said first conduit having a first end; a second conduit having a second electrically conductive trace embedded therein, said second conduit having a second end; and a connector for connecting said first end of said first conduit to said second end of said second conduit for fluid transfer therebetween, said connector being adapted to electrically connect said first trace of said first conduit to said second trace of said second conduit. ### Claim 40 (depends on 39) An assembly as set forth in claim 39, wherein said connector includes first electrically conductive teeth for engaging said first conduit so as to establish contact with said first trace, second conductive teeth for engaging said second conduit so as to establish contact with said second trace, and a conductive pathway interconnecting said first teeth and said second teeth. ### Claim 41 (depends on 40) An apparatus as set forth in claim 40, wherein said first teeth and said second teeth are configured so that the teeth are effective to electrically connect said first trace and second trace for a variety of conduit orientations in relation to said connector. ### Claim 42 A method for use in cooling equipment in a data center rack, comprising the steps of: providing an elongate strip having a number of temperature sensors distributed along a length thereof; orienting said strip so that a length thereof extends along a vertical axis of said rack; and mounting said strip to said rack. ### Claim 43 A method for use in cooling a desired area of a data center, comprising: providing a chiller unit having a number of heat transfer surfaces and fans for directing ambient air across said heat transfer surfaces to generate a cooled air flow; using a closed loop system with air as a coolant fluid to cool said heat transfer surfaces; and directing said cooled air flow to said desired area of said data center. ### Claim 44 (depends on 43) A method as set forth in Claim 43, further comprising the step of disposing said chiller unit generally above a data center rack. ### Claim 45 (depends on 44) A method as set forth in Claim 44, further comprising the step of orienting said chiller unit to draw in air from a warm zone of said data center and deliver cooled air to a cool zone of said data center. ### Claim 46 (depends on 45) A method as set forth in claim 45, further comprising supporting said chiller unit on an overhead wiring raceway.