Invention Grant
US09579971B2 Fuel cap provided with breather mechanism 有权
燃油盖配有呼吸机构

Fuel cap provided with breather mechanism
Abstract:
In a fuel cap provided with a breather mechanism, a cap openably and closably covers a fuel filler of a fuel tank. The cap includes a breather passage for communication between the inside and the outside of the fuel tank. The breather passage is provided with a breather valve mechanism and a resonator chamber as a silencing mechanism. The breather mechanism is a valve having a spring capable of retaining a pressure within the fuel tank up to a predetermined pressure.
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