CN100417817C - Double end compound tooth type labyrinth screw pump - Google Patents
Double end compound tooth type labyrinth screw pump Download PDFInfo
- Publication number
- CN100417817C CN100417817C CNB2004100087764A CN200410008776A CN100417817C CN 100417817 C CN100417817 C CN 100417817C CN B2004100087764 A CNB2004100087764 A CN B2004100087764A CN 200410008776 A CN200410008776 A CN 200410008776A CN 100417817 C CN100417817 C CN 100417817C
- Authority
- CN
- China
- Prior art keywords
- pump
- tooth type
- double end
- screw pump
- flute profile
- 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
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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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps 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
- F04C2/16—Rotary-piston machines or pumps 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)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2004100087764A CN100417817C (en) | 2004-03-18 | 2004-03-18 | Double end compound tooth type labyrinth screw pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2004100087764A CN100417817C (en) | 2004-03-18 | 2004-03-18 | Double end compound tooth type labyrinth screw pump |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1670378A CN1670378A (en) | 2005-09-21 |
CN100417817C true CN100417817C (en) | 2008-09-10 |
Family
ID=35041770
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004100087764A Expired - Fee Related CN100417817C (en) | 2004-03-18 | 2004-03-18 | Double end compound tooth type labyrinth screw pump |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN100417817C (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105201819A (en) * | 2014-06-26 | 2015-12-30 | 水利部科技推广中心 | Double-ended trapezoidal thread separated type spiral body micro-nano bubble device |
CN105221413A (en) * | 2014-06-26 | 2016-01-06 | 水利部科技推广中心 | Single-ended semicircle screw thread is from the micro-nano air bubble apparatus of formula heliconid |
CN105201820A (en) * | 2014-06-26 | 2015-12-30 | 水利部科技推广中心 | Double-ended saw-tooth thread separated type spiral body micro-nano bubble device |
CN105201821A (en) * | 2014-06-26 | 2015-12-30 | 水利部科技推广中心 | Separate-type treponemata micro-nanobubble device with saw-tooth thread at single end |
WO2018151609A1 (en) * | 2017-02-14 | 2018-08-23 | Solarjoule Ip Holdings Ltd | Improvements to a helical fan/pump/turbine |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2311461A1 (en) * | 1973-03-08 | 1974-09-19 | Hajo Dipl-Ing Pickel | DOUBLE SCREW PUMP |
GB1379575A (en) * | 1971-06-08 | 1975-01-02 | Stothert & Pitt Ltd | Meshing screw pump |
CN2103670U (en) * | 1991-08-15 | 1992-05-06 | 北京化工学院 | High-lift small-flow maze screw pump |
CN2103671U (en) * | 1991-10-29 | 1992-05-06 | 北京化工学院 | Double-end liquid intake type maze screw pump |
CN2153658Y (en) * | 1993-01-20 | 1994-01-19 | 朱毅征 | Minisize high-lifting small flow screw type axial-flow pump |
CN2199864Y (en) * | 1994-02-08 | 1995-06-07 | 林其勋 | Combined screw stem for double screw extruder with hot solidifying powder-type coating |
JPH07293479A (en) * | 1994-04-28 | 1995-11-07 | Koresawa Tekkosho:Kk | Screw pump and carrier passage for particulate matter mixed liquid using it |
CN2328816Y (en) * | 1997-08-08 | 1999-07-14 | 浙江中开石化装备制造有限公司 | Two end liquid feeding labyrinth screw pump |
JP2003097480A (en) * | 2001-09-27 | 2003-04-03 | Taiko Kikai Industries Co Ltd | Screw type vacuum pump |
-
2004
- 2004-03-18 CN CNB2004100087764A patent/CN100417817C/en not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1379575A (en) * | 1971-06-08 | 1975-01-02 | Stothert & Pitt Ltd | Meshing screw pump |
DE2311461A1 (en) * | 1973-03-08 | 1974-09-19 | Hajo Dipl-Ing Pickel | DOUBLE SCREW PUMP |
CN2103670U (en) * | 1991-08-15 | 1992-05-06 | 北京化工学院 | High-lift small-flow maze screw pump |
CN2103671U (en) * | 1991-10-29 | 1992-05-06 | 北京化工学院 | Double-end liquid intake type maze screw pump |
CN2153658Y (en) * | 1993-01-20 | 1994-01-19 | 朱毅征 | Minisize high-lifting small flow screw type axial-flow pump |
CN2199864Y (en) * | 1994-02-08 | 1995-06-07 | 林其勋 | Combined screw stem for double screw extruder with hot solidifying powder-type coating |
JPH07293479A (en) * | 1994-04-28 | 1995-11-07 | Koresawa Tekkosho:Kk | Screw pump and carrier passage for particulate matter mixed liquid using it |
CN2328816Y (en) * | 1997-08-08 | 1999-07-14 | 浙江中开石化装备制造有限公司 | Two end liquid feeding labyrinth screw pump |
JP2003097480A (en) * | 2001-09-27 | 2003-04-03 | Taiko Kikai Industries Co Ltd | Screw type vacuum pump |
Also Published As
Publication number | Publication date |
---|---|
CN1670378A (en) | 2005-09-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C53 | Correction of patent for invention or patent application | ||
CB03 | Change of inventor or designer information |
Inventor after: Li Jingzhong Inventor after: Zhang Youchen Inventor after: Wang Kuisheng Inventor after: Ma Runmei Inventor after: Zhang Pei Inventor after: Yang Weimin Inventor after: Duan Chenghong Inventor before: Li Jingzhong Inventor before: Zhang Youchen Inventor before: Wang Kuisheng Inventor before: Ma Runmei |
|
COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI JINGZHONG ZHANG YOUCHEN WANG KUISHENG MA RUNMEI TO: LI JINGZHONG ZHANG YOUCHEN WANG KUISHENG MA RUNMEI ZHANG PEI YANG WEIMIN DUAN CHENGHONG |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080910 Termination date: 20110318 |