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CN102478028A 文氏管构件及含有该构件的手、气动两用唧筒 失效 - 权利终止

文氏管构件及含有该构件的手、气动两用唧筒
摘要：
一种文氏管构件，含有：一文氏管，具有：一身部；一进气端，位于该身部的一侧；一出气端，位于该身部的另侧；一内部流道，设于该身部中并介于各进、出气端间；一气动抽气道，自该内部流道的一低静压区往外延伸至该身部的外侧端面上；一阻件，具有一排气空间，用以连通该出气端与大气，一阻部，可于一释放及阻闭位置间动作，当位于该释放位置上时，使该出气端得经由该排气空间而与大气连通，而当位于该阻闭位置上时，则使该出气端与大气间的连通被阻闭；该阻件更包含有一可于一全开位置及一微量位置间位移的微量部。当其以封闭文氏管内部流道的出气端为使用状态时，能使该内部流道与大气间保持连通，以减缓高压气体使密闭空间内部压力升压的速度。
摘要（英）：

A Venturi tube assembly includes: a Venturi tube having a body section with an inlet end, an outlet end and an internal flow passage between the inlet end and the outlet end, a pneumatic sucking passage outward extending from a low static pressure section of the internal flow passage to an outer circumference of the body section; and a blocking member having an exhaustion space for communicating the outlet end with the atmosphere, a blocking body movable between an unblocking position and a blocking position and a micro-section movable between a full open position and a micro-position. When positioned in the full open position, the exhaustion space fully communicates the outlet end with the atmosphere, whereby full amount of airflow is exhausted from the outlet end to the atmosphere. When positioned in the micro-position, only a micro-amount of airflow is exhausted from the outlet end to the atmosphere.

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