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1. (WO2019030965) VACUUM PUMP
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/030965 International Application No.: PCT/JP2018/012332
Publication Date: 14.02.2019 International Filing Date: 27.03.2018
IPC:
F04C 29/04 (2006.01) ,B22D 19/00 (2006.01) ,F04C 25/02 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
C
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
29
Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups F04C18/-F04C28/193
04
Heating; Cooling; Heat insulation
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
D
CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
19
Casting in, on, or around, objects which form part of the product
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
C
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
25
Adaptations for special use of pumps for elastic fluids
02
for producing high vacuum
Applicants:
株式会社アルバック ULVAC, INC. [JP/JP]; 神奈川県茅ヶ崎市萩園2500番地 2500 Hagisono, Chigasaki-shi, Kanagawa 2538543, JP
Inventors:
橋本 建治 HASHIMOTO, Kenji; JP
井上 英晃 INOUE, Hideaki; JP
柴山 浩司 SHIBAYAMA, Koji; JP
鈴木 敏生 SUZUKI, Toshio; JP
Agent:
大森 純一 OMORI, Junichi; JP
Priority Data:
2017-15274007.08.2017JP
Title (EN) VACUUM PUMP
(FR) POMPE À VIDE
(JA) 真空ポンプ
Abstract:
(EN) [Problem] To provide a vacuum pump provided with a housing having a cooling structure which is simple, has high cooling efficiency, and can be efficiently manufactured. [Solution] A vacuum pump according to one embodiment of the present invention is provided with a pump housing and a cooling pipe. The pump housing is formed from cast iron. The cooling pipe has an outer peripheral surface and an inner peripheral surface and is formed from stainless steel. The cooling pipe extends through the pump housing, and the outer peripheral surface of the cooling pipe comprises a sensitized layer, the outer peripheral surface being in close contact with the pump housing. The vacuum pump is configured such that the pump housing, which is made from cast iron, is cast and formed around the cooling pipe, which is formed from stainless steel. The outer peripheral surface of the cooling pipe is provided with the sensitized layer, the sensitized layer is in close contact with the pump housing, and the pump housing is cooled efficiently.
(FR) Le problème décrit par la présente invention est de fournir une pompe à vide comportant un corps ayant une structure de refroidissement qui est simple, a une efficacité de refroidissement élevée, et peut être fabriqué efficacement. La solution selon un mode de réalisation de la présente invention est pourvue d'un corps de pompe et d'un tuyau de refroidissement. Le corps de pompe est formé à partir de fonte. Le tuyau de refroidissement a une surface périphérique externe et une surface périphérique interne et est formé à partir d'acier inoxydable. Le tuyau de refroidissement s'étend à travers le corps de pompe, et la surface périphérique externe du tuyau de refroidissement comprend une couche sensibilisée, la surface périphérique externe étant en contact étroit avec le corps de pompe. La pompe à vide est conçue de telle sorte que le corps de pompe, qui est constitué de fonte, est coulé et formé autour du tuyau de refroidissement, qui est formé à partir d'acier inoxydable. La surface périphérique externe du tuyau de refroidissement est pourvue de la couche sensibilisée, la couche sensibilisée est en contact étroit avec le corps de pompe, et le corps de pompe est refroidi efficacement.
(JA) 【課題】簡便で、冷却効率が良く、製作性が良い冷却構造を有するハウジングを具備した真空ポンプを提供する。 【解決手段】本発明の一形態に係る真空ポンプは、ポンプハウジングと、冷却管とを具備する。上記ポンプハウジングは、鋳鉄で構成される。上記冷却管は、外周面と内周面とを有し、ステンレス鋼で構成される。上記冷却管は、前記ポンプハウジングを貫通し、前記ポンプハウジングに密接する前記外周面が鋭敏化層で構成される。この真空ポンプは、鋳鉄で構成されたポンプハウジングがステンレス鋼で構成された冷却管の周りに鋳造されて形成されたものである。冷却管の外周面には鋭敏化層が設けられ、鋭敏化層がポンプハウジングに密接し、ポンプハウジングが効率よく冷却される。
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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, 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
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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)