DE69216699T2 - Schraubenkolben-Vakuumpumpe - Google Patents
Schraubenkolben-VakuumpumpeInfo
- Publication number
- DE69216699T2 DE69216699T2 DE69216699T DE69216699T DE69216699T2 DE 69216699 T2 DE69216699 T2 DE 69216699T2 DE 69216699 T DE69216699 T DE 69216699T DE 69216699 T DE69216699 T DE 69216699T DE 69216699 T2 DE69216699 T2 DE 69216699T2
- Authority
- DE
- Germany
- Prior art keywords
- vacuum pump
- screw piston
- piston vacuum
- screw
- pump
- 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.)
- Expired - Fee Related
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
- 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
-
- 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
- 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
- F04C18/14—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 toothed rotary pistons
- F04C18/16—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 toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3195943A JP2537712B2 (ja) | 1991-07-10 | 1991-07-10 | スクリュ―形真空ポンプ |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69216699D1 DE69216699D1 (de) | 1997-02-27 |
DE69216699T2 true DE69216699T2 (de) | 1997-06-19 |
Family
ID=16349554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69216699T Expired - Fee Related DE69216699T2 (de) | 1991-07-10 | 1992-07-09 | Schraubenkolben-Vakuumpumpe |
Country Status (5)
Country | Link |
---|---|
US (1) | US5314320A (de) |
EP (1) | EP0523550B1 (de) |
JP (1) | JP2537712B2 (de) |
KR (1) | KR100221674B1 (de) |
DE (1) | DE69216699T2 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0952351A1 (de) * | 1998-04-21 | 1999-10-27 | Ateliers Busch S.A. | Verdrängermaschine |
DE10040020A1 (de) * | 2000-08-16 | 2002-03-07 | Bitzer Kuehlmaschinenbau Gmbh | Schraubenverdichter |
JP4853168B2 (ja) * | 2006-08-10 | 2012-01-11 | 株式会社豊田自動織機 | スクリューポンプ |
DE102013102030B3 (de) | 2013-03-01 | 2014-07-03 | Netzsch Pumpen & Systeme Gmbh | Schraubenspindelpumpe |
DE102013102031B4 (de) * | 2013-03-01 | 2016-05-12 | Netzsch Pumpen & Systeme Gmbh | Aus wenigstens zwei Teilen gebildete Schraubenspindelpumpe |
DE202018000178U1 (de) * | 2018-01-12 | 2019-04-15 | Leybold Gmbh | Kompressor |
US11225787B2 (en) | 2018-06-06 | 2022-01-18 | Simpson Strong-Tie Company, Inc. | Drywall spacing joist hanger |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB747058A (en) * | 1953-04-21 | 1956-03-28 | Worthington Corp | Multi-stage rotary compressor of the outwardly sliding vane type |
US3151806A (en) * | 1962-09-24 | 1964-10-06 | Joseph E Whitfield | Screw type compressor having variable volume and adjustable compression |
US4068984A (en) * | 1974-12-03 | 1978-01-17 | H & H Licensing Corporation | Multi-stage screw-compressor with different tooth profiles |
US4220197A (en) * | 1979-01-02 | 1980-09-02 | Dunham-Bush, Inc. | High speed variable delivery helical screw compressor/expander automotive air conditioning and waste heat energy _recovery system |
JPS61152990A (ja) * | 1984-12-26 | 1986-07-11 | Hitachi Ltd | スクリユ−真空ポンプ |
JPH079239B2 (ja) * | 1984-04-11 | 1995-02-01 | 株式会社日立製作所 | スクリュー真空ポンプ |
JPS61223295A (ja) * | 1985-03-27 | 1986-10-03 | Hitachi Ltd | オイルフリ−スクリユ−真空ポンプ |
JPS61234290A (ja) * | 1985-04-10 | 1986-10-18 | Hitachi Ltd | 多段スクリユ−真空ポンプ装置 |
US4667646A (en) * | 1986-01-02 | 1987-05-26 | Shaw David N | Expansion compression system for efficient power output regulation of internal combustion engines |
JPS62243982A (ja) * | 1986-04-14 | 1987-10-24 | Hitachi Ltd | 2段型真空ポンプ装置およびその運転方法 |
JPS62284994A (ja) * | 1986-06-04 | 1987-12-10 | Hitachi Ltd | 多段スクリユ−真空ポンプ起動法 |
GB8617612D0 (en) * | 1986-07-18 | 1986-08-28 | Peabody Holmes Ltd | Gas moving device |
JPH022948A (ja) * | 1988-06-14 | 1990-01-08 | Mitsubishi Electric Corp | コネクタ装着検出回路 |
JPH027268A (ja) * | 1988-06-27 | 1990-01-11 | Hitachi Ltd | Pcm記録再生装置 |
JPH0278783A (ja) * | 1988-09-14 | 1990-03-19 | Hitachi Ltd | スクリユー真空ポンプ |
JPH02146288A (ja) * | 1988-11-25 | 1990-06-05 | Ebara Corp | 内部圧縮を持つ容積型圧縮機 |
JPH07111184B2 (ja) * | 1988-12-05 | 1995-11-29 | 株式会社荏原製作所 | スクリュ−圧縮機 |
-
1991
- 1991-07-10 JP JP3195943A patent/JP2537712B2/ja not_active Expired - Fee Related
-
1992
- 1992-07-01 US US07/907,033 patent/US5314320A/en not_active Expired - Fee Related
- 1992-07-08 KR KR1019920012131A patent/KR100221674B1/ko not_active IP Right Cessation
- 1992-07-09 DE DE69216699T patent/DE69216699T2/de not_active Expired - Fee Related
- 1992-07-09 EP EP92111697A patent/EP0523550B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
KR100221674B1 (ko) | 1999-09-15 |
JPH0518380A (ja) | 1993-01-26 |
US5314320A (en) | 1994-05-24 |
DE69216699D1 (de) | 1997-02-27 |
JP2537712B2 (ja) | 1996-09-25 |
EP0523550A1 (de) | 1993-01-20 |
KR930002683A (ko) | 1993-02-23 |
EP0523550B1 (de) | 1997-01-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |