CN100400875C - Cycloidal screw tooth form of large flow double screw pump - Google Patents
Cycloidal screw tooth form of large flow double screw pump Download PDFInfo
- Publication number
- CN100400875C CN100400875C CNB200510049004XA CN200510049004A CN100400875C CN 100400875 C CN100400875 C CN 100400875C CN B200510049004X A CNB200510049004X A CN B200510049004XA CN 200510049004 A CN200510049004 A CN 200510049004A CN 100400875 C CN100400875 C CN 100400875C
- Authority
- CN
- China
- Prior art keywords
- circle
- pitch
- screw
- camber line
- rho
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
Description
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB200510049004XA CN100400875C (en) | 2005-01-31 | 2005-01-31 | Cycloidal screw tooth form of large flow double screw pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB200510049004XA CN100400875C (en) | 2005-01-31 | 2005-01-31 | Cycloidal screw tooth form of large flow double screw pump |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1648457A CN1648457A (en) | 2005-08-03 |
CN100400875C true CN100400875C (en) | 2008-07-09 |
Family
ID=34876497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB200510049004XA Expired - Fee Related CN100400875C (en) | 2005-01-31 | 2005-01-31 | Cycloidal screw tooth form of large flow double screw pump |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN100400875C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014000911B4 (en) * | 2014-01-28 | 2016-01-28 | Klaus Union Gmbh & Co. Kg | Feed screw as a runner or counter runner of a screw pair of a screw pump |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5746083A (en) * | 1980-09-01 | 1982-03-16 | Shigeyoshi Osada | Improved quimby pump |
US5697772A (en) * | 1995-04-05 | 1997-12-16 | Ebara Corporation | Screw rotor and method of generating tooth profile therefor |
CN1207795A (en) * | 1995-12-11 | 1999-02-10 | 爱特里尔斯布时股份公司 | Twin feed screw |
US6139297A (en) * | 1995-12-11 | 2000-10-31 | Ateliers Busch S.A. | Double worm system |
CN1546864A (en) * | 2003-12-10 | 2004-11-17 | 浙江大学 | Dentiform screw with short seal line |
US20040247465A1 (en) * | 2001-09-27 | 2004-12-09 | Masashi Yoshimura | Screw type vacuum pump |
-
2005
- 2005-01-31 CN CNB200510049004XA patent/CN100400875C/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5746083A (en) * | 1980-09-01 | 1982-03-16 | Shigeyoshi Osada | Improved quimby pump |
US5697772A (en) * | 1995-04-05 | 1997-12-16 | Ebara Corporation | Screw rotor and method of generating tooth profile therefor |
CN1207795A (en) * | 1995-12-11 | 1999-02-10 | 爱特里尔斯布时股份公司 | Twin feed screw |
US6139297A (en) * | 1995-12-11 | 2000-10-31 | Ateliers Busch S.A. | Double worm system |
US20040247465A1 (en) * | 2001-09-27 | 2004-12-09 | Masashi Yoshimura | Screw type vacuum pump |
CN1546864A (en) * | 2003-12-10 | 2004-11-17 | 浙江大学 | Dentiform screw with short seal line |
Also Published As
Publication number | Publication date |
---|---|
CN1648457A (en) | 2005-08-03 |
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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 | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo SiJin Machinery Co., Ltd. Assignor: Zhejiang University Contract fulfillment period: 2009.5.18 to 2014.5.17 contract change Contract record no.: 2009330001399 Denomination of invention: Cycloidal screw tooth form of large flow double screw pump Granted publication date: 20080709 License type: Exclusive license Record date: 2009.6.12 |
|
LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.5.18 TO 2014.5.17; CHANGE OF CONTRACT Name of requester: NINGBO SIJIN MACHIERY CO.,LTD. Effective date: 20090612 |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080709 Termination date: 20120131 |