Patent SG-11201901173W-A (SG)
Title: A method for controlling the outlet temperature of an oil injected compressor or vacuum pump and oil injected compressor or vacuum pump implementing such method
Inventor: COECKELBERGS Joeri
IPC: F04C28/00
Filed: 2017-08-08
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 22 February 2018 (22.02.2018) WIPO I PCT IiiimmoinionotiolooluinomoiolommovoimIE (10) International Publication Number WO 2018/033827 Al (51) International Patent Classification: F04C 28/00 (2006.01) FO4B 49/06 (2006.01) (21) International Application Number: PCT/IB2017/054836 (22) International Filing Date: 08 August 2017 (08.08.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/376,550 18 August 2016 (18.08.2016) US 62/412,567 25 October 2016 (25.10.2016) US 2017/5069 03 February 2017 (03.02.2017) BE (71) Applicant: ATLAS COPCO AIRPOWER, NAAM- LOZE VENNOOTSCHAP [BE/BE]; Boomsesteenweg 957, 2610 Wilrijk (BE). (72) Inventors: COECKELBERGS, Joeri; c/o Atlas Copco Airpower, Boomsesteenweg 957, 2610 Wilrijk (BE). SHI, Yun; c/o Atlas Copco Airpower, nv, Arenbergstraat 13, 2610 Wilrijjk (BE). (74) Agent: VAN VARENBERG, Patrick et al.; Aren- bergstraat 13, 2000 Antwerpen (BE). (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. (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). (54) Title: A METHOD FOR CONTROLLING THE OUTLET TEMPERATURE OF AN OIL INJECTED COMPRESSOR OR VAC- UUM PUMP AND OIL INJECTED COMPRESSOR OR VACUUM PUMP IMPLEMENTING SUCH METHOD W O 20 18/0338 27 Al 22 (57) : The present invention is directed to a method for controlling the outlet temperature of an oil injected compressor or vacuum pump (1) comprising a compressor or vacuum element (4) provided with a gas inlet (5), an element outlet (6), and an oil inlet (12), said method comprising the steps of: - measuring the outlet temperature (Tout) at the element outlet (6); controlling the position of a regulating valve (15) in order to regulate the flow of oil flowing through a cooling unit (13) connected to said oil inlet ( 12 ); whereby the step of controlling the position of the regulating valve (151 involves applying a fuz2y logic algorithm on the measured out- let temperature (Tout); and in that the method further comprises the step of controlling the speed of a fan (21) cooling the oil flowing through the cooling unit (13) by applying the fuzzy logic algorithm and further based on the position of the regulating valve (15). Figure 1 [Continued on next page] WO 2018/033827 Al MIDEDIMOMMIDEFIERIMIHOMEIMERVOIS Declarations under Rule 4.17: as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(ii)) of inventorship (Rule 4.17(iv)) Published: — with international search report (Art. 21(3))