JPS6412092A - Vacuum pump of screw type - Google Patents
Vacuum pump of screw typeInfo
- Publication number
- JPS6412092A JPS6412092A JP62165042A JP16504287A JPS6412092A JP S6412092 A JPS6412092 A JP S6412092A JP 62165042 A JP62165042 A JP 62165042A JP 16504287 A JP16504287 A JP 16504287A JP S6412092 A JPS6412092 A JP S6412092A
- Authority
- JP
- Japan
- Prior art keywords
- rotor chamber
- outlet
- vacuum pump
- screw type
- atmosphere
- 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.)
- Granted
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
- F04C29/04—Heating; Cooling; Heat insulation
- F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid
-
- 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
-
- 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
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
-
- 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
- F04C2220/00—Application
- F04C2220/10—Vacuum
- F04C2220/12—Dry running
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62165042A JPS6412092A (en) | 1987-07-01 | 1987-07-01 | Vacuum pump of screw type |
US07/108,702 US4808095A (en) | 1987-07-01 | 1987-10-15 | Screw vacuum pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62165042A JPS6412092A (en) | 1987-07-01 | 1987-07-01 | Vacuum pump of screw type |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6412092A true JPS6412092A (en) | 1989-01-17 |
JPH045836B2 JPH045836B2 (ja) | 1992-02-03 |
Family
ID=15804731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62165042A Granted JPS6412092A (en) | 1987-07-01 | 1987-07-01 | Vacuum pump of screw type |
Country Status (2)
Country | Link |
---|---|
US (1) | US4808095A (ja) |
JP (1) | JPS6412092A (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2515831B2 (ja) * | 1987-12-18 | 1996-07-10 | 株式会社日立製作所 | スクリユ―真空ポンプ |
DE19724643A1 (de) * | 1997-06-11 | 1998-12-17 | Sihi Gmbh & Co Kg | Schraubenverdichter und Verfahren zum Betrieb desselben |
KR100408153B1 (ko) * | 2001-08-14 | 2003-12-01 | 주식회사 우성진공 | 드라이 진공펌프 |
DE102009017887A1 (de) * | 2009-04-17 | 2010-10-21 | Oerlikon Leybold Vacuum Gmbh | Grobpumpverfahren für eine Verdrängerpumpe |
ITPR20090054A1 (it) * | 2009-07-10 | 2011-01-11 | Robuschi S P A | Compressore a vite a secco |
BE1022302B1 (nl) * | 2014-09-10 | 2016-03-14 | ATLAS COPCO AIRPOWER , naamloze vennootschap | Schroefcompressorelement |
CN104500400B (zh) * | 2014-10-20 | 2016-08-17 | 西安交通大学 | 一种螺杆压缩机气缸的窄缝状喷液结构 |
CN112431757B (zh) | 2015-10-30 | 2022-09-20 | 加德纳丹佛公司 | 复合螺杆转子 |
CN106089721B (zh) * | 2016-08-11 | 2018-06-26 | 四川行之智汇知识产权运营有限公司 | 发动机降噪元件的质检系统 |
CN106089725B (zh) * | 2016-08-11 | 2018-06-26 | 四川行之智汇知识产权运营有限公司 | 用于检测消音效果的增压装置 |
CN106089727A (zh) * | 2016-08-11 | 2016-11-09 | 成都陵川常友汽车部件制造有限公司 | 用于沙漠越野车的消音系统检测设备 |
CN106089722A (zh) * | 2016-08-11 | 2016-11-09 | 成都陵川常友汽车部件制造有限公司 | 汽车发动机用的消音管检测设备 |
CN106089720B (zh) * | 2016-08-11 | 2018-06-26 | 四川行之智汇知识产权运营有限公司 | 阻性消音器气密性的检查装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5675994A (en) * | 1979-11-21 | 1981-06-23 | Hitachi Ltd | Multieffect screw compressor |
JPS6282295A (ja) * | 1985-10-07 | 1987-04-15 | Kobe Steel Ltd | スクリユ式真空ポンプ |
JPS6336085A (ja) * | 1986-07-30 | 1988-02-16 | Taiko Kikai Kogyo Kk | スクリユウ型真空ポンプ |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US958345A (en) * | 1910-01-22 | 1910-05-17 | Connersville Blower Co | Vacuum-pump. |
US1191423A (en) * | 1913-01-15 | 1916-07-18 | H & S Pump Company | Pump. |
US3112869A (en) * | 1960-10-17 | 1963-12-03 | Willis A Aschoff | High vacuum pump |
GB1172993A (en) * | 1966-02-23 | 1969-12-03 | Plessey Co Ltd | Improvements in or relating to Rotary-Positive Displacement Machines |
GB1269628A (en) * | 1968-04-19 | 1972-04-06 | Plenty & Son Ltd | Improvements in and relating to inter-meshing screw pumps |
US4005949A (en) * | 1974-10-10 | 1977-02-01 | Vilter Manufacturing Corporation | Variable capacity rotary screw compressor |
FR2383335A1 (fr) * | 1977-03-08 | 1978-10-06 | Leybold Heraeus Sogev | Pompe mecanique a joint d'huile |
JPS5468510A (en) * | 1977-11-11 | 1979-06-01 | Kobe Steel Ltd | Gas leak preventive method for self-lubricating screw compressor |
JPS5759920A (en) * | 1980-09-29 | 1982-04-10 | Hiroaki Egawa | Photocrosslinkable resin composition |
DE3312117A1 (de) * | 1983-04-02 | 1984-10-04 | Leybold-Heraeus GmbH, 5000 Köln | Zweiwellen-vakuumpumpe mit innerer verdichtung |
EP0166851B1 (en) * | 1984-04-11 | 1989-09-20 | Hitachi, Ltd. | Screw type vacuum pump |
JPS61265381A (ja) * | 1985-05-20 | 1986-11-25 | Hitachi Ltd | スクリユ−圧縮機のガス噴射装置 |
JPH01202413A (ja) * | 1988-02-09 | 1989-08-15 | Dainippon Ink & Chem Inc | 射出成形品の仕上げ方法 |
-
1987
- 1987-07-01 JP JP62165042A patent/JPS6412092A/ja active Granted
- 1987-10-15 US US07/108,702 patent/US4808095A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5675994A (en) * | 1979-11-21 | 1981-06-23 | Hitachi Ltd | Multieffect screw compressor |
JPS6282295A (ja) * | 1985-10-07 | 1987-04-15 | Kobe Steel Ltd | スクリユ式真空ポンプ |
JPS6336085A (ja) * | 1986-07-30 | 1988-02-16 | Taiko Kikai Kogyo Kk | スクリユウ型真空ポンプ |
Also Published As
Publication number | Publication date |
---|---|
US4808095A (en) | 1989-02-28 |
JPH045836B2 (ja) | 1992-02-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |