FIELD: pumping equipment.
SUBSTANCE: invention relates to a volumetric pump. Volumetric pump (10) contains case (11) having inlet end (16) and outlet end (18), pump chamber (30) located between ends (16) and (18), at least one membrane (20) active in chamber (30) and movable between an extended configuration, in which a volume of chamber (30) is maximal, and a pulled configuration, in which a volume of chamber (30) is minimal, injection valve (46) located near end (18), inlet valve (26) containing inlet hole (27), outlet hole (28) and wall (29) that connects hole (27) with hole (28). Hole (27) is connected to end (16). Hole (28) is opened into chamber (30). At least one membrane (20), when it is in the pulled configuration, sticks to wall (29) of valve (26), and hole (28) of valve (26) is closed.
EFFECT: invention is aimed at obtaining a suction height close to a theoretical maximum suction height.
13 cl, 10 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| HYDRAULIC PUMP WITH DISPOSABLE COMPONENT | 2007 |
|
RU2445983C2 |
| AUTOMATICALLY ADJUSTED BRACE SYSTEM WITH MEMS PUMP | 2009 |
|
RU2506060C2 |
| PUMP SYSTEMS FOR FLUID DELIVERY AND METHODS FOR USING STRESS APPLICATION DEVICES | 2007 |
|
RU2447905C2 |
| DEFORMABLE VALVE MECHANISM FOR FLUID SUPPLY CONTROL | 2011 |
|
RU2570344C2 |
| FLUID DISPENSER FOR ORAL CAVITY CARE WITH LOW-PROFILE PUMP | 2010 |
|
RU2536199C1 |
| SYSTEM FOR SOFT DRUGS DOSING | 2012 |
|
RU2630719C2 |
| UREA SOLUTION PUMP WITH BYPASS LEAKS CHANNEL | 2012 |
|
RU2573070C2 |
| NORMALLY CLOSED VALVE IN FREE STATE | 2007 |
|
RU2432142C2 |
| DIAPHRAGM PUMP (VERSIONS) | 2004 |
|
RU2349795C2 |
| DROPPER, PUMPING SYSTEM AND METHOD FOR SEQUENTIALLY SUPPLYING TWO LIQUIDS FROM A PAIR OF CONTAINERS TO A PATIENT | 1998 |
|
RU2201263C2 |
