FIELD: piston devices for movement in two directions along the axis in piston cylinders.
SUBSTANCE: in accordance to invention, resilient packing element is mounted in a recess of the piston, made in its outward section. Axial width and, at least in some positions, radial depth of recess exceed diameter of transverse section of packing element, which is capable of movement due to difference of pressure of two sides between first and second positions, as a result of which total area of transverse section, at most, A1 and area A0 of transverse section, or total area, at most, A2, of transverse section and area A0 of transverse section are ensured in turns. A1 and A2 are substantially less than A0. Invention also concerns a liquid feeding valve, including aforementioned piston device for ensuring passage of liquid in given amount or during certain time period from the source of liquid under pressure.
EFFECT: increased reliability of piston device.
2 cl, 17 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ADAPTIVE SHOCK ABSORBER WITH AUTOMATIC CONTROL OF ROD POSITION | 2019 |
|
RU2729858C1 |
| RAILWAY VEHICLE DAMPING DEVICE | 2012 |
|
RU2568533C2 |
| ACTUATOR FOR AXIAL DISPLACEMENT OF OBJECT | 2014 |
|
RU2651002C2 |
| PISTON WITH SEALING PRESSED BY PRESSURE OF INTERNAL PISTON CHAMBER (VERSIONS) | 2014 |
|
RU2661224C2 |
| BATCHER AND METHOD OF BATCHING | 2011 |
|
RU2541293C2 |
| SUCTION PUMP, VACUUM HOLDING DEVICE AND METHOD FOR ATTACHING IT | 2018 |
|
RU2758216C2 |
| METHOD FOR MEASURING VOLUME, MASS, VOLUME AND MASS FLOW OF LIQUID AND GAS AND PISTON FLOW METER FOR ITS IMPLEMENTATION | 2023 |
|
RU2807007C1 |
| SPOOL VALVE | 2016 |
|
RU2707687C2 |
| HYDRAULIC ABSORBER VALVE | 2015 |
|
RU2673787C2 |
