JPH102281A - 真空ポンプの改良 - Google Patents

真空ポンプの改良

Info

Publication number
JPH102281A
JPH102281A JP4759497A JP4759497A JPH102281A JP H102281 A JPH102281 A JP H102281A JP 4759497 A JP4759497 A JP 4759497A JP 4759497 A JP4759497 A JP 4759497A JP H102281 A JPH102281 A JP H102281A
Authority
JP
Japan
Prior art keywords
pump
piston
vacuum pump
spring
stages
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4759497A
Other languages
English (en)
Japanese (ja)
Inventor
Ian Stones
ストーンズ イアン
Nigel Paul Schofield
ポール ショーフィールド ナイジェル
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOC Group Ltd
Original Assignee
BOC Group Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BOC Group Ltd filed Critical BOC Group Ltd
Publication of JPH102281A publication Critical patent/JPH102281A/ja
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B25/00—Multi-stage pumps
    • F04B25/02—Multi-stage pumps of stepped piston type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F04B35/045—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric using solenoids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Electromagnetic Pumps, Or The Like (AREA)
JP4759497A 1996-03-01 1997-03-03 真空ポンプの改良 Pending JPH102281A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9604645:3 1996-03-01
GBGB9604645.3A GB9604645D0 (en) 1996-03-01 1996-03-01 Improvements in vacuum pumps

Publications (1)

Publication Number Publication Date
JPH102281A true JPH102281A (ja) 1998-01-06

Family

ID=10789859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4759497A Pending JPH102281A (ja) 1996-03-01 1997-03-03 真空ポンプの改良

Country Status (3)

Country Link
EP (1) EP0793019A3 (fr)
JP (1) JPH102281A (fr)
GB (1) GB9604645D0 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0008281D0 (en) 2000-04-04 2000-05-24 Boc Group Plc Improvements in reciprocating machines
GB0224986D0 (en) 2002-10-28 2002-12-04 Smith & Nephew Apparatus
GB0325129D0 (en) 2003-10-28 2003-12-03 Smith & Nephew Apparatus in situ
US20070224058A1 (en) * 2006-03-24 2007-09-27 Ingersoll-Rand Company Linear compressor assembly
EP1905465B2 (fr) 2006-09-28 2013-11-27 Smith & Nephew, Inc. Système portable de traitement de plaies
MX2010005552A (es) 2007-11-21 2010-06-02 Smith & Nephew Aposito para heridas.
GB201011173D0 (en) 2010-07-02 2010-08-18 Smith & Nephew Provision of wound filler
GB201015656D0 (en) 2010-09-20 2010-10-27 Smith & Nephew Pressure control apparatus
MX337627B (es) 2010-11-25 2016-03-10 Smith & Nephew Composiciones i-ii y productos y usos de la misma.
GB201020005D0 (en) 2010-11-25 2011-01-12 Smith & Nephew Composition 1-1
US9084845B2 (en) 2011-11-02 2015-07-21 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
US20150159066A1 (en) 2011-11-25 2015-06-11 Smith & Nephew Plc Composition, apparatus, kit and method and uses thereof
CN104507513B (zh) 2012-03-20 2017-04-12 史密夫及内修公开有限公司 基于动态占空比阈值确定的减压治疗系统的控制操作
US9427505B2 (en) 2012-05-15 2016-08-30 Smith & Nephew Plc Negative pressure wound therapy apparatus
US20160120706A1 (en) 2013-03-15 2016-05-05 Smith & Nephew Plc Wound dressing sealant and use thereof
WO2016103032A1 (fr) 2014-12-22 2016-06-30 Smith & Nephew Plc Appareil et procédés de thérapie par pression négative

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2715102A1 (de) * 1977-04-04 1978-10-12 Syndicat Des Coproprietaires D Kompressor mit freiflugkolben und hohem verdichtungsgrad
DE2855608C2 (de) * 1978-12-22 1984-10-25 Pierburg Gmbh & Co Kg, 4040 Neuss Doppelt wirkende Vakuumpumpe
WO1983000539A1 (fr) * 1981-08-13 1983-02-17 Balkau, Guenter, Karl, Willi Machine a piston et cylindre a mouvement alternatif
US4832578A (en) * 1986-11-14 1989-05-23 The B.F. Goodrich Company Multi-stage compressor
JPS6419189A (en) * 1987-07-14 1989-01-23 Nagano Keiki Seisakusho Kk Vacuum pump
JPH02102385A (ja) * 1988-10-08 1990-04-13 Toyo Eng Corp 排気装置
JPH04128578A (ja) * 1990-09-19 1992-04-30 Toyo Eng Corp 真空ポンプ
JPH0518351A (ja) * 1991-07-10 1993-01-26 Zhongyuan Chen スリーブピストンポンプ

Also Published As

Publication number Publication date
EP0793019A2 (fr) 1997-09-03
GB9604645D0 (en) 1996-05-01
EP0793019A3 (fr) 1999-06-02

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