CYLINDRICAL LINEAR INDUCTION PUMP WITH COILS INCLINED TO ITS LONGITUDINAL AXIS - 1. CALCULATION OF THE ELECTROMAGNETIC FIELD.

A main obstacle to the use of MHD pumps in the metal making and casting technology is the difficulty of producing special flowthrough channels resistant to the aggressive action of high-temperature molten metals. One possible way of solving this problem may be to destroy the cylindrical symmetry of the electromagnetic field within the pump channel, for the purpose of eliminating here the zones of zero longitudinal force component. This article describes another solution to the problem, namely elimination of zones where the longitudinal component of the electromagnetic force is zero by inclining the inductor coils to the longitudinal axis. In this case the coils become elliptical in shape and can be wound with many turns of comparatively thin conductor. One may expect a smaller loss on hydraulic friction in a pump proposed here.