WO2007067339A3 - Fixed volume valve system - Google Patents
Fixed volume valve system Download PDFInfo
- Publication number
- WO2007067339A3 WO2007067339A3 PCT/US2006/044908 US2006044908W WO2007067339A3 WO 2007067339 A3 WO2007067339 A3 WO 2007067339A3 US 2006044908 W US2006044908 W US 2006044908W WO 2007067339 A3 WO2007067339 A3 WO 2007067339A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve
- flow passage
- valve seat
- diaphragm
- present
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B25/00—Multi-stage pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/02—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated
- F04B7/0266—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated the inlet and discharge means being separate members
- F04B7/0275—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated the inlet and discharge means being separate members and being deformable, e.g. membranes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
Embodiments of the present invention provide valves that provide for uniform holdup volume. An embodiment of the present invention provides a valve comprising a valve body (e.g., one or more pieces) that defines a valve chamber having a valve seat, an inlet flow passage, an outlet flow passage and a diaphragm control flow passage intersecting the valve seat. The valve seat is shaped so that the valve has a fixed holdup volume when at least a threshold vacuum is applied to the diaphragm control flow passage. The valve further comprises a diaphragm movable towards and away from the valve seat. According to one embodiment of the present invention, the valve seat can have a semi-hemispherical shape to which the diaphragm conforms when a minimum vacuum is applied to the diaphragm control flow passage.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US74214705P | 2005-12-02 | 2005-12-02 | |
US60/742,147 | 2005-12-02 |
Publications (3)
Publication Number | Publication Date |
---|---|
WO2007067339A2 WO2007067339A2 (en) | 2007-06-14 |
WO2007067339A3 true WO2007067339A3 (en) | 2007-09-20 |
WO2007067339B1 WO2007067339B1 (en) | 2007-11-22 |
Family
ID=38123366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2006/044908 WO2007067339A2 (en) | 2005-12-02 | 2006-11-20 | Fixed volume valve system |
Country Status (3)
Country | Link |
---|---|
US (1) | US20070128061A1 (en) |
TW (1) | TW200726916A (en) |
WO (1) | WO2007067339A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10393276B2 (en) * | 2013-12-10 | 2019-08-27 | Semba Biosciences, Inc. | High-flow fluid valve block |
CN107850058B (en) * | 2015-06-23 | 2020-07-31 | 恩特格里斯公司 | Oval diaphragm valve |
Citations (3)
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US5262068A (en) * | 1991-05-17 | 1993-11-16 | Millipore Corporation | Integrated system for filtering and dispensing fluid having fill, dispense and bubble purge strokes |
US5653251A (en) * | 1995-03-06 | 1997-08-05 | Reseal International Limited Partnership | Vacuum actuated sheath valve |
US5743293A (en) * | 1994-06-24 | 1998-04-28 | Robertshaw Controls Company | Fuel control device and methods of making the same |
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-
2006
- 2006-11-20 WO PCT/US2006/044908 patent/WO2007067339A2/en active Application Filing
- 2006-11-20 US US11/602,457 patent/US20070128061A1/en not_active Abandoned
- 2006-11-21 TW TW095142927A patent/TW200726916A/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5262068A (en) * | 1991-05-17 | 1993-11-16 | Millipore Corporation | Integrated system for filtering and dispensing fluid having fill, dispense and bubble purge strokes |
US5743293A (en) * | 1994-06-24 | 1998-04-28 | Robertshaw Controls Company | Fuel control device and methods of making the same |
US5653251A (en) * | 1995-03-06 | 1997-08-05 | Reseal International Limited Partnership | Vacuum actuated sheath valve |
Also Published As
Publication number | Publication date |
---|---|
US20070128061A1 (en) | 2007-06-07 |
WO2007067339B1 (en) | 2007-11-22 |
TW200726916A (en) | 2007-07-16 |
WO2007067339A2 (en) | 2007-06-14 |
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Legal Events
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121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
NENP | Non-entry into the national phase |
Ref country code: DE |
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122 | Ep: pct application non-entry in european phase |
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