FIELD: transportation.
SUBSTANCE: invention relates to a safety valve, specifically to a safety valve for fuel vapour systems. Pressure relief valve (10, 70) has first tubing (14a) connectable to fuel tank (62) and second tubing (14b) connectable to fuel vapour treating device (64). Pressure relief valve comprises externally actuated valve (20) disposed between first tubing (14a) and second tubing (14b) and is configured for pulsed actuation by controller (28), thereby allowing pulsed fluid flow through primary port (18a) disposed between first tubing (14a) and second tubing (14b).
EFFECT: creating a safety valve which can operate independently and is suitable for operation of hybrid vehicles.
36 cl, 15 dwg
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