VENT VALVE

VENT VALVE

Vent valve (1) for controlling the internal tank pressure of a fuel tank, having at least one valve housing (2) having at least one first connection (3) to the fuel tank and at least one second connection (4), which can be connected to a vent line leading to a fuel vapour filter, having at least one...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: KOUKAN, IBRAHIM
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ACTUATING-FLOATS
ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES
ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES
ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES
AUXILIARY DRIVES FOR VEHICLES
BLASTING
COCKS
DEVICES FOR VENTING OR AERATING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
INSTRUMENTATION OR DASHBOARDS FOR VEHICLES
LIGHTING
MECHANICAL ENGINEERING
PERFORMING OPERATIONS
TAPS
THERMAL INSULATION IN GENERAL
TRANSPORTING
VALVES
VEHICLES IN GENERAL
WEAPONS
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Beschreibung
Zusammenfassung:Vent valve (1) for controlling the internal tank pressure of a fuel tank, having at least one valve housing (2) having at least one first connection (3) to the fuel tank and at least one second connection (4), which can be connected to a vent line leading to a fuel vapour filter, having at least one valve element (9), which is held in a valve seat (8) in a position in which it closes the first connection (3) by the force of gravity and/or by spring loading and, after a given pressure threshold is exceeded, is raised from the valve seat (8) and, when a given pressure threshold is undershot, returns to the initial position, wherein the valve element is arranged so that it can move within a valve element guide, the valve element has at least one first relief opening (10), which forms a bypass for a gap flow which arises during a return movement of the valve element characterized in that the valve element (9) has at least one second relief opening (14), which is closed by means of a nonreturn valve acting counter to the direction of closing of the vent valve (1) or which is open permanently in order to obtain forced leakage.