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1. (WO2012048039) FLOW RATE CONTROLLER FOR HIGH FLOW RATES AND HIGH PRESSURE DROPS

Pub. No.:    WO/2012/048039    International Application No.:    PCT/US2011/054978
Publication Date: Fri Apr 13 01:59:59 CEST 2012 International Filing Date: Thu Oct 06 01:59:59 CEST 2011
IPC: G05D 7/01
Applicants: KIRCHNER, Mark, W.
JONES, Gilbert
Inventors: KIRCHNER, Mark, W.
JONES, Gilbert
Title: FLOW RATE CONTROLLER FOR HIGH FLOW RATES AND HIGH PRESSURE DROPS
Abstract:
A flow rate controller is disclosed that maintains constant flow rate with changes in pressure drop across the valve by maintaining a constant pressure drop across a restrictor with the aid of a spring balanced piston that mates a cone to a seat to dissipate the majority of pressure drop across the valve.