Venting device for the fuel tank of a motor vehicle

Details Venting device for the fuel tank of a motor vehicle Venting device for the fuel tank of a motor vehicle

1989-11-21

1990-07-10

Marmor, Charles A.

Motor vehicles

Power

With fuel supply for internal combustion engine

123519, F02M 2312

Patent

active

049401017

ABSTRACT:
A venting device for the fuel tank of a motor vehicle has a venting line in which a fuel vapor filter is disposed. The filter is connected to the atmosphere through an aeration device, the outlet of which lies in the road region of the vehicle. To prevent an excessive vacuum arising in the venting system, when the outlet is plugged, a vacuum limiting valve is connected to the aeration line. This valve, at a particular vacuum in the aerating line, connects this line with the atmosphere at a place above the outlet of the aeration line.

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