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发明授权
CN105121853B 具有过压保护的偏心螺杆泵 有权

具有过压保护的偏心螺杆泵
摘要：
本发明涉及一种偏心螺杆泵，该偏心螺杆泵包括外侧部件(2)和设置在该外侧部件中的内侧部件(3)，其中一个部件(2、3)被可转动地驱动，并且一个部件(2、3)可相对于另一部件(3、2)进行偏心运动。外侧部件(2)的螺纹线(5a、5b)沿该外侧部件的轴向长度(L)环绕少于一整圈螺线，从而在运行中在两侧形成敞开的输送腔，通过所述输送腔实现突发性的卸压。
摘要（英）：

An eccentric screw pump comprising an outer part (2) and an inner part (3) therein, one of the parts (2, 3) being driven rotatably and the other part (2, 3) being able to move eccentrically relative to the other part (3, 2). The screwthreads (5a, 5b) of the outer part (2) extend angularly over less than an entire helix along the axial length (L) of the part, so that during operation pumping chambers that are open to both ends are created, through which sudden pressure relief takes place.

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