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1. (WO2018180053) SEALING DEVICE AND COMPRESSOR
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Pub. No.: WO/2018/180053 International Application No.: PCT/JP2018/006401
Publication Date: 04.10.2018 International Filing Date: 22.02.2018
IPC:
F16J 15/447 (2006.01) ,F04D 29/10 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
J
PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15
Sealings
44
Free-space packings
447
Labyrinth packings
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
D
NON-POSITIVE-DISPLACEMENT PUMPS
29
Details, component parts, or accessories
08
Sealings
10
Shaft sealings
Applicants: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION[JP/JP]; 34-6, Shiba 5-chome, Minato-ku, Tokyo 1080014, JP
Inventors: NAKANIWA Akihiro; JP
HIRATA Daisuke; JP
Agent: MATSUNUMA Yasushi; JP
ITO Eisuke; JP
HASHIMOTO Hiroyuki; JP
FURUICHI Satoshi; JP
KAMATA Koichiro; JP
HASEGAWA Taichi; JP
Priority Data:
2017-06738030.03.2017JP
Title (EN) SEALING DEVICE AND COMPRESSOR
(FR) DISPOSITIF D'ÉTANCHÉITÉ ET COMPRESSEUR
(JA) シール装置及び圧縮機
Abstract:
(EN) The present invention comprises a ring part (60), a first fin group (81) that together with a first outer peripheral surface (21) forms a clearance, and a second fin group (83) of which the distal end is positioned farther radially inward than the first outer peripheral surface (21) and which together with a second outer peripheral surface (22) forms a clearance. The ring part (60) has a first gas supply channel (76) capable of supplying a first sealing gas to the first fin group (81), a second gas supply channel (77) capable of supplying a second sealing gas to the second fin group (83), and a mixed gas discharge channel (78) capable of discharging a mixed gas of the first sealing gas and the second sealing gas from between the first fin group (81) and the second fin group (83).
(FR) La présente invention comprend une partie annulaire (60), un premier groupe d'ailettes (81) qui, conjointement avec une première surface périphérique externe (21), forme un espace, et un second groupe d'ailettes (83) dont l'extrémité distale est positionnée plus loin radialement vers l'intérieur que la première surface périphérique externe (21) et qui, conjointement avec une seconde surface périphérique externe (22), forme un espace. La partie annulaire (60) a un premier canal d'alimentation en gaz (76) apte à fournir un premier gaz d'étanchéité au premier groupe d'ailettes (81), un second canal d'alimentation en gaz (77) apte à fournir un second gaz d'étanchéité au second groupe d'ailettes (83), et un canal de décharge de gaz mixte (78) apte à évacuer un gaz mixte du premier gaz d'étanchéité et du second gaz d'étanchéité entre le premier groupe d'ailettes (81) et le second groupe d'ailettes (83).
(JA) リング部(60)と、第一外周面(21)との間でクリアランスを形成する第一フィン群(81)と、先端が第一外周面(21)よりも径方向内側に位置するとともに第二外周面(22)との間でクリアランスを形成する第二フィン群(83)と、備える。リング部(60)が、第一フィン群(81)の間に第一シールガスを供給可能な第一ガス供給路(76)と、第二フィン群(83)の間に第二シールガスを供給可能な第二ガス供給路(77)と、第一フィン群(81)と第二フィン群(83)との間から、第一シールガスと第二シールガスとの混合ガスを排出可能な混合ガス排出路(78)と、を有する。
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Designated States: 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, 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
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)