On March 7, 2013, Navistar , a US truck and engine manufacturer, announced the promotion of Troy Clark , COO (Chief Operating Officer), as its new CEO.
Zhuo Yikai is 57 years old and is currently the president and COO of Navistar. It will replace the interim CEO Lewis Campbell, who had been the interim CEO of Navistar since August of last year to fill the gap after the removal of former CEO Donani Ustian.
In January 2010, Zhuo Yikai joined Navistar as Senior Vice President of Strategic Planning. He was promoted to president and COO last fall.
Prior to this, Zhuo Kaikai worked for GM for 35 years. He has served as General Motors North America President, General Motors Mexico Operations President, Manufacturing and Labor Relations Vice President, and General Motors Asia Pacific President.
The working principle of the centrifugal separator includes centrifugal filtration and centrifugal sedimentation. Centrifugal filtration is the centrifugal pressure generated by the suspension under the centrifugal force field, acting on the filter medium, so that the liquid passes through the filter medium to become a filtrate, and the solid particles are trapped on the surface of the filter medium, thereby achieving liquid-solid separation; centrifugal sedimentation is to use The principle that each component with different density of suspension (or emulsion) settles quickly in the centrifugal force field to achieve liquid-solid (or liquid-liquid) separation.
The centrifugal separator has two functions: centrifugal filtration and centrifugal sedimentation. Centrifugal filtration is the centrifugal pressure generated by the suspension in the centrifugal force field, which acts on the filter medium, so that the liquid passes through the filter medium and becomes the filtrate, while the solid particles are trapped on the surface of the filter medium to achieve liquid-solid separation; centrifugal sedimentation is used The principle that the components of the suspension (or emulsion) with different densities settle rapidly in the centrifugal force field to achieve liquid-solid (or liquid-liquid) separation.
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