Patent ID: 7875098
Filing Date: 2011-01-25
Classification: B01D,B04B,F01M,G01P,Y10S

Abstract:
1. A centrifugal separator comprising: a stationary casing defining an inner space, a spindle, a rotating member attached to the spindle and arranged to rotate around an axis (x) of rotation with a rotary speed, wherein the rotating member comprises a number of separating discs which are provided in the inner space, a drive member for driving the spindle and the rotating member with said rotary speed, a sensor device for sensing the rotation of the rotating member in relation to the casing, wherein the sensor device comprises at least one transmitter element provided in the inner space on the rotating member, and a receiver element provided at the casing and arranged to sense the transmitter element; and wherein the receiver element is provided on the casing outside the inner space so that no receiver element part projects into the inner space.