FIELD: ventilation.
SUBSTANCE: ventilation valve has, at least, one housing with, at least, one first connection to the fuel tank, and with, at least, one second connection which can be connected to the vent line laid to the fuel vapour filter. The ventilation valve contains, at least, one valve element which is kept in the valve seat in a position in which it closes the first connection by means of gravity and/or spring-load and after the pre-set pressure threshold is exceeded, rises from the valve seat and when the pre-set pressure threshold is decreased, it returns to the initial position. The valve element and/or the guiding detail of the valve element has/have, at least, one outlet which forms a bypass for flow rip which occurs, for example, during back movement of the valve element.
EFFECT: possibility of overflow of the fuel tank due to the vent valve design is avoided.
11 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2245474C2 |
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| STEAM-FLUID SYSTEM AND ITS COMPONENTS | 2013 |
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| LIQUID DISPENSING DEVICE HAVING PRE-COMPRESSION OUTLET VALVE | 2015 |
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RU2726843C1 |
