Device for the venting circuit of a liquid tank and valve...

Details Device for the venting circuit of a liquid tank and valve... Device for the venting circuit of a liquid tank and valve...

2011-03-29

2011-03-29

Kwon, John T (Department: 3747)

Internal-combustion engines

Charge forming device

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

C137S202000

Reexamination Certificate

active

07913671

ABSTRACT:
A device for a venting circuit of a liquid tank provided with a canister and a filling tube including a filling head, this device comprising:a) a control chamber that communicates with:the canister via a main orifice and a smaller-flow-area secondary orifice, both terminating in a ventilation line leading to the canister;the interior of the tank via the venting circuit; andthe filling head via a pressure-equalizing line;b) a closure member that is:provided with an opening therethrough which brings the venting circuit into communication with the pressure-equalizing line;able to move in the control chamber between an operating position with the main orifice closed off by gravity and the secondary orifice left open, and a filling position with both orifices left open; andshaped to sealingly conform to at least a control chamber part that includes the main orifice.

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