Venting device for fuel tank

Details Venting device for fuel tank Venting device for fuel tank

2009-05-21

2010-10-12

Moulis, Thomas N (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel flow regulation between the pump and the charge-forming...

C123S519000, C137S583000, C137S587000, C137S588000, C137S589000

Reexamination Certificate

active

07810474

ABSTRACT:
The fuel tank venting device is furnished with a full fuel control valve and a rollover valve that are installed on a fuel tank, and a fuel tank valve unit having a pressure valve that is situated between a canister and the two valves. The pressure valve is furnished with a casing that has a valve chamber, a valve body housed within the valve chamber, and a spring. The valve body has a disk-shaped valve part and a side wall that projects with tubular contours from the outside perimeter of the valve part, and has a cup shape defining a spring chamber that is bounded by the valve part and the side wall. The valve part is perforated by an orifice of smaller planar dimensions than the valve aperture.

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