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1. (WO2019049873) VARIABLE NOZZLE TURBOCHARGER
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Pub. No.: WO/2019/049873 International Application No.: PCT/JP2018/032812
Publication Date: 14.03.2019 International Filing Date: 05.09.2018
IPC:
F02B 37/24 (2006.01) ,F01D 11/00 (2006.01) ,F01D 17/16 (2006.01) ,F01D 25/00 (2006.01) ,F16J 15/16 (2006.01) ,F16J 15/447 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
37
Engines characterised by provision of pumps driven at least for part of the time by exhaust
12
Control of the pumps
24
by using pumps or turbines with adjustable guide vanes
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
D
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
11
Preventing or minimising internal leakage of working fluid, e.g. between stages
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
D
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
17
Regulating or controlling by varying flow
10
Final actuators
12
arranged in stator parts
14
varying effective cross-sectional area of nozzles or guide conduits
16
by means of nozzle vanes
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
D
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
25
Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
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
16
between relatively-moving surfaces
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
Applicants:
いすゞ自動車株式会社 ISUZU MOTORS LIMITED [JP/JP]; 東京都品川区南大井6丁目26番1号 6-26-1, Minami-oi, Shinagawa-ku, Tokyo 1408722, JP
Inventors:
大蘆 嘉郎 OASHI Yoshiro; JP
Agent:
日比谷 征彦 HIBIYA Yukihiko; JP
日比谷 洋平 HIBIYA Yohei; JP
Priority Data:
2017-17369511.09.2017JP
Title (EN) VARIABLE NOZZLE TURBOCHARGER
(FR) TURBOCOMPRESSEUR À BUSE VARIABLE
(JA) 可変ノズルターボチャージャ
Abstract:
(EN) A variable nozzle turbocharger 1 comprising: nozzle rings 21, 22 that define a scroll flow path 23; a variable nozzle 30 arranged in the scroll flow path; and a nozzle shaft 40. In the variable nozzle turbocharger having the nozzle shaft inserted through a nozzle shaft hole 60 provided in the nozzle rings, the nozzle shaft hole has: a pivot hole section 61 that pivots the nozzle shaft and a large-diameter hole section 62 provided in an end section of the nozzle shaft hole, on the scroll flow path side, and having a larger diameter than the pivot hole section 61. The variable nozzle turbocharger comprises a seal member 50 fitted to the nozzle shaft, housed in the large-diameter hole section, and sealing a gap between an inner circumferential surface 64 of the pivot hole section and the outer circumferential surface 43 of the nozzle shaft facing this inner circumferential surface.
(FR) L'invention concerne un turbocompresseur à buse variable 1 comprenant: des anneaux de buse 21, 22 qui définissent un trajet d'écoulement de volute 23; une buse variable 30 disposée dans le trajet d'écoulement de volute; et un arbre de buse 40. Dans le turbocompresseur à buse variable dont l'arbre de buse est inséré à travers un trou d'arbre de buse 60 disposé dans les anneaux de buse, le trou d'arbre de buse présente: une section de trou de pivot 61 qui fait pivoter l'arbre de buse et une section de trou de grand diamètre 62 disposée dans une section d'extrémité du trou d'arbre de buse, sur le côté du trajet d'écoulement de volute, et ayant un diamètre plus grand que la section de trou de pivot 61. Le turbocompresseur à buse variable comprend un élément d'étanchéité 50 ajusté à l'arbre de buse, logé dans la section de trou de grand diamètre, et scellant un espace entre une surface circonférentielle interne 64 de la section de trou de pivot et la surface circonférentielle externe 43 de l'arbre de buse tournée vers cette surface circonférentielle interne.
(JA) 可変ノズルターボチャージャ1は、スクロール流路23を画定するノズルリング21,22と、スクロール流路に配置された可変ノズル30と、ノズル軸40と、を備え、ノズル軸がノズルリングに設けられたノズル軸孔60に挿通された可変ノズルターボチャージャにおいて、ノズル軸孔は、ノズル軸を軸支する軸支孔部61と、ノズル軸孔のうちスクロール流路の側の端部に設けられ、軸支孔部61よりも径の大きい大径孔部62を有し、ノズル軸に嵌められるとともに大径孔部に収容されて、軸支孔部の内周面64とこの内周面に対向するノズル軸の外周面43との隙間をシールするシール部材50を備える。
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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)