Valve arrangement for the ventilation and the venting of fuel ta

Details Valve arrangement for the ventilation and the venting of fuel ta Valve arrangement for the ventilation and the venting of fuel ta

1986-08-29

1987-10-06

Nilson, Robert G.

Fluid handling

Control by change of position or inertia of system

With second control

137 43, F16K 1736

Patent

active

046976124

ABSTRACT:
A valve arrangement for ventilating and venting fuel tanks for motor vehicles which includes a vacuum valve, an excess pressure valve as well as a safety valve that interrupts the connection of the interior of the tank with the atmosphere beginning with a predetermined position of the valve arrangement deviating from the installed position. The safety valve includes a mass member displaceably arranged in the housing of the valve arrangement whose weight force is directed opposite the closing force of the excess pressure valve in the normal position of the valve arrangement and which beginning with a predetermined and subsequently continuing housing displacement acts increasingly on the valve closure member. It is assured thereby that the safety valve does not become operable already when the valve arrangement is not accurately installed or when the vehicle stands at an inclination but becomes effective only when it becomes actually necessary for safety reasons, for example, with a lateral roll-over of the vehicle caused by an accident, especially in the overturned position of a motor vehicle.

REFERENCES:
patent: 3280838 (1966-10-01), Parkinson
patent: 3568695 (1971-03-01), DeFrees
patent: 4351350 (1982-09-01), Crute
patent: 4593711 (1986-06-01), Morris

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