Vent pressure control for multi-stage fluid jet amplifier
Abstract
Abstract IN A MULTI-STAGED FLUID AMPLIFIER, THE VENT PRESSURES OF THE INPUT AND INTERMEDIATE STAGES ARE MAINTAINED AT A HIGHER PRESSURE THAN THE VENT OF THE OUTPUT STAGE TO PROVIDE OPTIMUM GAIN AND LINEARITY IN THE OPERATION OF THE AMPLIFIER. THIS END RESULT MAY BE ACHIEVED BY CONNECTING THE VENTS OF THE INPUT AND INTERMEDIATE AMPLIFIER STAGES TO A SUITABLE FLOW RESTRICTOR WHILE THE VENT OF THE OUTPUT STAGE IS CONNECTED TO THE AMBIENT ATMOSPHERE. IN A PREFERRED EMBODIMENT THIS FLOW RESTRICTOR INCLUDES A VORTEX AMPLIFIER RESPONSIVE TO THE OUTPUT OF THE INPUT STAGE SUCH THAT THE VENT PRESSURE IS AUTOMATICALLY ADJUSTED IN ACCORDANCE WITH VARIATIONS IN THE AVERAGE VALUE OF THE CONTROL PORT PRESSURE OF THE INPUT STAGE. D R A W I N G
Inventors
- 👤 W Griffin
Bibliographic Details
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