Fluidic pump control systems
AssigneeUnited Kingdon Atomic Energy Authority
InventorsJohn R. Tippetts, Geoffrey H. Priestman
Life of this patent
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Abstract
A control system for a single acting or double acting fluidic pump comprising a detector stage (1), a power amplifiction stage (2) and a primary element stage (3). The detector stage comprises bistable fluidic amplifiers for detecting pressure changes in a gas pressure line (10) to a displacement vessel of the pump. The power amplification stage comprises at least one unvented bistable fluidic amplifier to amplify and direct signals from the detector stage to the primary element. The primary element can be a jet pump (12) and vortex amplifier (13) to provide high pressures in the gas pressure line (10).
Claims9
A fluidic control system for a fluidic pump having a displacement vessel, the system comprising in combination a detection stage, a power amplification stage connected to receive signals from the detection stage, and a primary element stage connected to receive further signals from the power amplification stage, the detection stage comprising bistable fluidic amplifiers for detecting pressure changes in a gas pressure line to the displacement vessel of the fluidic pump and providing said signals in response to said changes, the power amplification stage comprising means to amplify the signals from the detection stage and direct the further signals to the primary element stage and the primary element having an output connected to the gas pressure line, the primary element stage comprising means responsive to the further signals from the power amplification stage and operative to achieve high drive pressure in the gas pressure line.
Dependencies are inferred from the claim text.