Method and apparatus for reynolds number compensation of working fluid supplied to fluid amplifier
Abstract
Abstract A VARIABLE AREA VALVE IS INTERPOSED BETWEEN A SOURCE OF WORKING FLUID AND THE POWER NOZZLE OF A HYDRAULIC FLUID AMPLIFIER, AND ITS FLOW AREA IS CONTROLLED IN INVERSE RESPONSE TO PRESSURE CHANGES DETECTED IN A FLUID JET ISSUING FROM A REFERENCE NOZZLE. THE REFERENCE NOZZLE IS SUBSTANTIALLY IDENTICAL TO, AND IS CONNECTED IN FLUID PARALLEL WITH, THE POWER NOZZLE OF THE FLUID AMPLIFIER. FLUCTUATIONS IN THE REYNOLDS NUMBER OR VISCOSITY ASSOCIATED WITH THE WORKING FLUID ARE DIRECTLY MANIFESTED IN PRESSURE CHANGES IN THE JET ISSUING FROM THE POWER NOZZLE AND THUS IN GAIN CHANGES IN THE FLUID AMPLIFIER. PRESSURE CHANGES DETECTED IN THE REFERENCE JET ARE DIRECTLY RELATED TO ANY PRESSURE CHANGES WHICH OCCUR IN THE POWER JET OF THE FLUID AMPLIFIER AND SERVE TO COMPENSATE FOR THE LATTER BY MOVING THE VARIABLE AREA VALVE SO AS TO INCREASE OR DECREASE THE PRESSURE OF THE WORKING FLUID SUPPLIED TO THE FLUID AMPLIFIER.
Inventors
- 👤 Willis A Boothe
Bibliographic Details
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