EP1199475A3 - Vakuumpumpe - Google Patents

Vakuumpumpe Download PDF

Info

Publication number
EP1199475A3
EP1199475A3 EP01124518A EP01124518A EP1199475A3 EP 1199475 A3 EP1199475 A3 EP 1199475A3 EP 01124518 A EP01124518 A EP 01124518A EP 01124518 A EP01124518 A EP 01124518A EP 1199475 A3 EP1199475 A3 EP 1199475A3
Authority
EP
European Patent Office
Prior art keywords
valve hole
guide pipe
hole forming
forming body
valve
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.)
Withdrawn
Application number
EP01124518A
Other languages
English (en)
French (fr)
Other versions
EP1199475A2 (de
Inventor
Shinya Yamamoto
Yuji Hashimoto
Hitoshi Shoji
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.)
Toyota Industries Corp
Original Assignee
Toyota Industries Corp
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 Toyota Industries Corp filed Critical Toyota Industries Corp
Publication of EP1199475A2 publication Critical patent/EP1199475A2/de
Publication of EP1199475A3 publication Critical patent/EP1199475A3/de
Withdrawn legal-status Critical Current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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/06—Silencing
    • F04C29/065—Noise dampening volumes, e.g. muffler chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/126—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Check Valves (AREA)
EP01124518A 2000-10-16 2001-10-12 Vakuumpumpe Withdrawn EP1199475A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000314967A JP2002122085A (ja) 2000-10-16 2000-10-16 真空ポンプにおける流路構造
JP2000314967 2000-10-16

Publications (2)

Publication Number Publication Date
EP1199475A2 EP1199475A2 (de) 2002-04-24
EP1199475A3 true EP1199475A3 (de) 2003-03-05

Family

ID=18794138

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01124518A Withdrawn EP1199475A3 (de) 2000-10-16 2001-10-12 Vakuumpumpe

Country Status (2)

Country Link
EP (1) EP1199475A3 (de)
JP (1) JP2002122085A (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2598284A1 (en) 2005-03-07 2006-09-14 Carrier Corporation Compressor sound suppression
DE102012003066B3 (de) * 2012-02-17 2013-07-04 Netzsch Pumpen & Systeme Gmbh Verfahren und vorrichtung zum fixieren und synchronisieren von drehkolben in einer drehkolbenpumpe
FR3008145B1 (fr) * 2013-07-04 2015-08-07 Pfeiffer Vacuum Sas Pompe a vide primaire seche
CN111287960B (zh) * 2020-04-08 2025-01-14 山东省章丘鼓风机股份有限公司 一种带导流装置的罗茨鼓风机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1188975A (fr) * 1957-12-24 1959-09-28 Comp Generale Electricite Clapet antiretour à volume variable
US3958603A (en) * 1973-05-14 1976-05-25 The Nash Engineering Company Insert for movable diaphragm type flow control valve
FR2372363A1 (fr) * 1976-11-24 1978-06-23 Bosch Siemens Hausgeraete Soupape de retenue pour appareils alimentes en eau, notamment pour machines a laver le linge ou la vaisselle
EP0354161A2 (de) * 1988-08-02 1990-02-07 Carrier Corporation Schalldämpfungs- und Absperrventileinrichtung für Spiralverdichter
DE4039644A1 (de) * 1989-12-15 1991-06-20 Vaillant Joh Gmbh & Co Ueberstroemventil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1188975A (fr) * 1957-12-24 1959-09-28 Comp Generale Electricite Clapet antiretour à volume variable
US3958603A (en) * 1973-05-14 1976-05-25 The Nash Engineering Company Insert for movable diaphragm type flow control valve
FR2372363A1 (fr) * 1976-11-24 1978-06-23 Bosch Siemens Hausgeraete Soupape de retenue pour appareils alimentes en eau, notamment pour machines a laver le linge ou la vaisselle
EP0354161A2 (de) * 1988-08-02 1990-02-07 Carrier Corporation Schalldämpfungs- und Absperrventileinrichtung für Spiralverdichter
DE4039644A1 (de) * 1989-12-15 1991-06-20 Vaillant Joh Gmbh & Co Ueberstroemventil

Also Published As

Publication number Publication date
EP1199475A2 (de) 2002-04-24
JP2002122085A (ja) 2002-04-26

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