Differential pressure sensors detect fluid volume changes to trigger pump adjustments, preventing diaphragm over-expansion and extending lifespan.
A hydraulic pressure intensifier uses a switching valve with a radially extending flange to manage control pressure areas.
A jet pump system generates controlled air puffs for noncontact tonometry using a compression chamber and surge valve.
A control system adjusts pump phase and speed to minimize amplified high-pressure spikes in parallel pumping operations.
Measures compressor outlet pressure using average motor current to eliminate expensive high-temperature sensors.
Adaptive fill choke regulation synchronizes subsea pump chambers, maintaining stable inlet pressure to resolve drilling instability.
Segmented stages resolve fluid pressure pulsations in flow cytometry, ensuring uniform delivery without complex mechanical seals.
A co-axial inverted piston linear actuator pumping system coordinates multiple electric motors to drive hollow threaded shafts and pistons.
Closing the inlet valve before crankshaft stop lowers inlet pressure, reducing start-up torque and motor size requirements.
Transformer isolates sensor module from high voltage motor supply.
A fluid delivery apparatus combines a diaphragm pump with a positive displacement pump to manage liquid transfer.
Feedback control maintains pressure stability under 50,000 psi while resolving compactness and reliability trade-offs.
A pumping system adjusts inlet pressure and speed to limit cavitation.
An integrated micropump conveys analyte fluid to a sensor on the same substrate, reducing measurement time compared to passive diffusion.
Pump controller adjusts motor duty cycle based on measured drive speed, eliminating complex fluid sensors while maintaining delivery accuracy.