Patent ID: 6186412
Filing Date: 2001-02-13
Classification: B64C,Y02T

Abstract:
A method for generating dynamically controllable oscillatory fluid flow featuring oscillation parameters of variable frequency, variable amplitude, variable wave form, and variable mean flow rate, comprising the steps of:(a) driving a constant circulatory fluid flow along a circuitous flow path by using a driver;(b) chopping said constant circulatory fluid flow by using a chopper, thereby generating the dynamically controllable oscillatory fluid flow from said constant circulatory fluid flow, such that said fluid flow becomes a superposition of two fluid flow components, first component is the dynamically controllable oscillatory fluid flow, second component is remaining said constant circulatory fluid flow;(c) guiding said superposition of said two fluid flow components and dividing said superposition of said two fluid flow components into said first component of the dynamically controllable oscillatory fluid flow and into said second component of said remaining constant circulatory fluid flow; and(d) guiding said first component of the dynamically controllable oscillatory fluid flow to exit said circuitous flow path and said second component of said remaining constant circulatory fluid flow to return to said driver.