Flexible Member Pumps TRIZ Cases

Closed-loop feedback control adjusts rotor position to maintain 2-5 per thousand tolerance, eliminating waste from inaccurate dosing.

A linear peristaltic pump cartridge integrates deformable material to create pulsatile fluid flow within a compact reagent reservoir.

A low-cost ambulatory medical pump uses a software-enforced service life limit to prevent reuse after safe operating limits are exceeded.

Variable roller speeds in a two-stage peristaltic pump stabilize output pressure, reducing tubing wear and maintenance costs.

Replacing bulky fans with ultrasonic vibrations eliminates mechanical noise while maintaining airflow speed and heat dissipation efficiency.

Hollow fiber membranes separate oxygen from ambient air while a piezoelectric pump moves the gas, alleviating low oxygen concentration effects.

A spring-loaded pump actuator moves liquid through sealed orifices to dispense concentrated solutions from a compact basin reservoir.

A retractable platform assembly resolves the contradiction between trailer stability and maintenance safety by providing a secure working surface for personnel.

A piston pump mechanism delivers fluid by cyclically alternating velocity to simulate natural heart function.

Staggered hydraulic drive synchronizes reciprocating strokes across multiple positive displacement pumps to maintain continuous flow.

Replacing rigid scrolls with a flexible membrane eliminates tip seals and gas leakage, lowering manufacturing costs while extending pump lifetime.

Deformable elastomeric pump ring creates tight seals, preventing internal and external fluid leaks.

Snap-fitting holder device guides tubing into fixed length and angle, resolving manual alignment errors that cause inconsistent fluid flow.

A micropump design uses a rotor shaft port overlapping inlet and outlet angles to pump fluid without valve seals.

A single inverter with multiple switching elements drives two compressors while a controller detects individual currents and voltages.

A piezoelectric diaphragm pump uses a variable contact area to adjust stroke, resolving the trade-off between high pressure and particle generation.

Segmented bellows distribute deformation load across independent sections, reducing mechanical stress on the conveying element during fluid delivery.

A portable topical negative pressure pump adjusts motor speed via real-time sensor feedback to maintain consistent wound therapy pressure.

A vent tube manages water flow beneath flexible liners to enable reliable eversion and inversion processes.

Segmenting the compressor train into independent portions reduces parasitic load at low power by activating only necessary stages.

A microfluidic chip uses sheath fluids to compress sample streams into single file formation for precise component isolation.

Segmented roller wheel assembly enables rapid hose replacement in peristaltic pumps without disassembling the drive mechanism.

Sensor feedback controls pipe switch reversal timing to eliminate hydraulic shock, noise, and interruptions during thick matter conveyance.

Capacitance sensors distinguish oil from water while a backup float switch overrides the primary controller to prevent dry sump damage.

A deformable diaphragm compresses gas against a contour bar, eliminating moving seals and reducing installation space in high-pressure systems.

A spring-biased diaphragm absorbs high-frequency pulsations within a compact reciprocating pump housing.

Segmented valve flaps with low-mass areas enable high-frequency operation beyond 500 Hz, solving responsiveness limits in portable devices.

A gas driven pump uses a shared shaft to link pistons in separate cylinders for efficient fluid transfer.

Efficiency valve system divides inlet air into control and process streams, preventing overfilling of air chambers to reduce energy waste.

Motor-driven pump reverses urea flow to prevent freezing, eliminating unreliable 4/2-way valves and pipe accumulation.

A fluid control device uses a deformable substrate to maintain a specified gap between the flexible plate and vibration plate.

Automated beauty product dispenser segments colorant supply to eliminate manual mixing waste.

A fluid delivery system uses a positive displacement pump and bypass check valve to supply dielectric fluid to an inverted electric submersible pump.

A peristaltic pump uses a cam and lever to pivot the stator for tube engagement.

Rolling squeeze members reduce friction in peristaltic pumps, enabling high dosing accuracy for sensitive materials like insulin.

Optimized diaphragm thickness and elasticity balance structural strength with valve operation, reducing leakage in compressible gas handling.

Variable volume compression chambers generate low-pressure air to clean sensors without bulky motors, reducing system complexity and noise.

Intermediary ring eliminates friction between pressing members and flexible tubing, reducing wear and enabling lower-grade disposable materials.

Segmented floatation members in a rotating chain minimize energy loss during compression and expansion cycles.

A plunger lift valve closes upon contacting liquid slugs to reverse flow direction and push fluids upward.

A pump device delivery diaphragm uses a positively locking activation element to transmit drive force for fluid suction.

A camera and light source image particles through a viewing window to determine medical fluid speed.

A medical peristaltic pump uses an electromagnetic locking mechanism to secure the rotor assembly within a hinged cover.

A peristaltic pump uses a feeler pin to measure fluid volume during the pumping cycle.

Bimorph pairs in a synthetic jet pump expand and contract to displace fluid, eliminating frictional wear from pistons.

Segmented branch channels and valves control gas accumulation, resolving the trade-off between device size and transfer volume.

Integrating the pump into the tank eliminates external conduits, resolving leakage risks and reducing overall device volume.

Inter-piston return springs replace coaxial mounts to reduce radial size and assembly complexity while maintaining reliable piston contact.

Segmenting the reservoir from the motorized pump resolves size-volume trade-offs, enabling discreet concealment within patient clothing.

Variable thickness membranes and container grooves prevent air bubble trapping in blood treatment pumps.