Patent ID: 6712087
Filing Date: 2004-03-30
Classification: B01D,F16K,Y10T

Abstract:
A rotary valve assembly in a pressure swing adsorption system having a plurality of adsorption beds with feed ends and product ends, comprising:a rotary valve shoe and a valve port plate having respective engaged surfaces and the rotary valve shoe rotatable to provide valving action for selectively transferring fluids therethrough, the rotary valve shoe including multiple passages allowing fluid to flow therethrough; a fluid distribution manifold to distribute fluids between the adsorption beds and the valve members, the fluid distribution manifold including multiple passages allowing fluid to flow therethrough; and one or more passages of at least one of the rotary valve shoe and the fluid distribution manifold including one or more purge passages having a distinct flow control element disposed therein other than the at least one or more passages of at least one of the rotary valve shoe and the fluid distribution manifold to allow for precise control of purge fluid therethrough to improve pressure swing adsorption system performance.