Gas-blast circuit breaker with noise-reducing exhaust muffler assembly
    6.
    发明授权
    Gas-blast circuit breaker with noise-reducing exhaust muffler assembly 失效
    带噪声减少排气装置的气体断路器

    公开(公告)号:US3617667A

    公开(公告)日:1971-11-02

    申请号:US3617667D

    申请日:1970-01-27

    Applicant: GEN ELECTRIC

    CPC classification number: H01H33/58

    Abstract: A noise-reducing exhaust muffler for a gas-blast circuit breaker comprises spaced end walls and four concentric tubular members mounted between the end walls. Exhaust gases enter through one end wall, flow into the space enclosed by the first tubular member, then flow radially outward through holes in the first, second, and third tubular members, and then axially of the muffler between the third and fourth tubular members. The holes in the third and second tubular members are in axially staggered locations so as to introduce additional turns into the flow path and provide solid wall barriers to the radiation of sound energy.

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