Patent ID: 9223316
Filing Date: 2015-12-29
Classification: G05D,Y10T

Abstract:
1. A system for controlling flow rate and back flow of a fluid flowing in a conduit, comprising: a flow restrictor coupled between the conduit and a flow regulator chamber and configured to control a pressure P a control chamber configured to receive a portion of the fluid flowing in the conduit from a location upstream of the flow restrictor via a secondary conduit; a damping restriction located in the secondary conduit and configured to control a pressure P a moveable element with no sliding parts positioned so that at least a part of the moveable element is disposed between the control chamber and the flow regulator chamber, wherein the moveable element is configured to move in response to a difference in pressure between the flow regulator chamber and the control chamber; a flow rate regulator moveable within an opening in a seating structure and coupled with the moveable element, wherein the flow rate regulator is configured to control the flow rate of the fluid in response to the movement of the moveable element, wherein the flow rate regulator controls the flow rate of the fluid by regulating flow of the fluid through the opening in the seating structure; and a non-return valve moveable within an opening in an outlet seating structure and coupled with the flow rate regulator by a connecting member, wherein the non-return valve is configured to control back-flow of the fluid through the opening in the outlet seating structure, and wherein: