An electrostatic fluid acceleration and method of operation thereof includes at least two synchronously powered stages. A single power supply or synchronized and phase controlled power supplies provide high voltage power to each of the stages such that both the phase and amplitude of the electric power...http://www.google.com.au/patents/US6727657?utm_source=gb-gplus-sharePatent US6727657 - Electrostatic fluid accelerator for and a method of controlling fluid flow
