Patent SG-11201908041Y-A (SG)
Title: System and method for device under test cooling using digital scroll compressor
Inventor: WENG CHUAN
IPC: F04C28/26
Filed: 2018-04-30
Abstract: 2 Air Out 110a ' 3/8 100 106 110a /-7/8 10.0 118c —106 5/16 1/4 110a Strainer 118b 102c 3 110a ( 110b \ ,( 1/4 110a 116b \-7/8 c s —118a 13 7/8 102 5/16 r 1leia 106 110a 28\" 104 Air In 5/16 Filter/Dryer HI Press >. Access • ---102a 110a < LO Press Access -110b Accumulator 108 Fig. I 114 4112 1-1 1-1 O 00 O C (1 2) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 08 November 2018 (08.11.2018) WIPO I PCT omit °nolo oi Holm °nom° oimIE (10) International Publication Number WO 2018/204218 Al (51) International Patent Classification: F04C 18/02 (2006.01) F25B 49/02 (2006.01) F04C 23/00 (2006.01) F25B 9/00 (2006.01) F04C 28/26 (2006.01) (21) International Application Number: PCT/US2018/030091 (22) International Filing Date: 30 April 2018 (30.04.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/492,466 01 May 2017 (01.05.2017) US 15/947,415 06 April 2018 (06.04.2018) US (71) Applicant: TEMPTRONIC CORPORATION [US/US]; 41 Hampden Road, Mansfield, Massachusetts 02048 (US). (72) Inventors: WENG, Chuan; c/o Temptronic Corporation, 41 Hampden Road, Mansfield, Massachusetts 02048 (US). ELSDOERFER, Norbert; c/o Temptronic Corporation, 41 Hampden Road, Mansfield, Massachusetts 02048 (US). (74) Agent: MILLS, Steven, M. et al.; Burns & Levinson, LLP, 125 Summer Street, Boston, Massachusetts 02110 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (54) Title: SYSTEM AND METHOD FOR DEVICE UNDER TEST COOLING USING DIGITAL SCROLL COMPRESSOR (57) : A device under test cooling system has a refrigerant line and a fluid line extending through a plurality of successively arranged heat exchangers. A digital scroll compressor has an intake for providing the refrigerant mixture to the compressor and a discharge connecting the compressor to the refrigerant line to provide the refrigerant mixture to the heat exchangers. The compressor includes a plurality of scroll elements between the intake and the discharge for compressing the refrigerant mixture. The compressor includes a valve configured to separate the scroll elements when in an open position to allow refrigerant to flow freely between the intake and the discharge. When the valve is in a closed position, the scroll elements compress the refrigerant. A controller is configured to switch the valve between an open and closed position based on a set duty cycle. [Continued on next page] WO 2018/204218 Al O II (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))