| 摘要 |
<p>Polymer processing apparatus (10) having a section for processing polymer at a relatively low pressure sufficient only for processing; and having a section for pumping the polymer in liquid form for increasing the pressure in the polymer using a shaft having radial blades rotating (18) in one or more annular chambers closed by a body (12) and seals formed by the shaft (16) in bearings (14) in the body thereby reducing the power needs of the processing apparatus.</p> |
