Flexible Member Pumps TRIZ Cases

Electroactive polymer circular bands generate peristaltic waves to displace fluid, extending run life and eliminating rig dependency for maintenance.

Segmented chambers isolate mechanical wear from abrasive fracking fluids, enabling smooth high-pressure slurry delivery.

Integrating a pressure sensor diaphragm inside the pump chamber eliminates connection line leakages while enabling precise underpressure measurement.

A variable volume accumulator adjusts fluid pressure using a movable partition and peristaltic pump to maintain consistent output.

A rotary diaphragm pump incorporates a harder reinforcing member on the partition to limit deflection, extending lifespan at higher operating pressures.

Disposable PFA fluoropolymer bag protects downhole motors from corrosive fluids, avoiding complex coating application.

Multiple out-of-phase pump segments in a surgical cassette cancel individual pulses to deliver consistent fluid flow with reduced pressure fluctuations.

An integrated deflectable lumen actuator opens an inline valve by compressing the flexible conduit, eliminating reliance on pump door alignment.

A single peristaltic pump drives supply and discharge lines through differential section diameters to manage fluid flow.

A diaphragm pump crank features a ring-shaped insertion groove that guides the driving shaft axis during rotation.

Expansion vessel attached to pump outlet absorbs pressure peaks from air pulses, reducing pulsed forces that degrade submersible pump capacity.

Ring rib on center plate corrects positional deviation during screw tightening, preventing biased loads and premature diaphragm breakage.

Segmenting the pump into a reusable motor unit and replaceable housing resolves the contradiction between structural stability and ease of servicing.

Coordinating a door lock mechanism with a roller clamp blocks an infusion tube during door access, preventing free flow from operational errors.

Drive unit supports diaphragm at lower dead point to prevent inward deformation under high pressure and maintain liquid discharge efficiency.

A multi-stage reciprocating pump adjusts fluid flow and pressure output using pistons with different surface areas.

A fluid transport device uses an eccentric cam to open and close internal passages via a single drive source.

A split bobbin clutch uses flat wire tension bands with an aspect ratio under one to secure shift rods.

A linear peristaltic pump uses a horizontal motor to drive cam lobes, resolving instability from top-heavy designs while enabling high flow rates.

Aligning external connection terminals on the same thickness plane simplifies wiring while maintaining reliable drive signal supply to piezoelectric elements.

Reducing check valve size and connection line cross-sections minimizes dead space, enabling rapid parallel-to-serial switchover and high final vacuum.

A motor controller monitors input power and inlet pressure to detect pump obstructions.

Active magnetic control of intravenous tubing eliminates elastomer recovery delays and friction damage, ensuring consistent fluid delivery accuracy.

A working diaphragm uses a support element to stabilize elastic deformation during fluid conveying strokes.

Variable cross-section tubing zones compensate for roller disengagement voids to eliminate flow pulsations in precision infusion pumps.

A concentric drop tube with through holes forms a liquid flow passage that prevents trapped liquid balls and reduces residual volume.

A piezoelectric actuator main plate features a low elastic modulus region positioned away from the center to redirect tensile stress during vibration.

A peristaltic pump assembly uses a magneto-rheological fluid to drive a flexible member for moving working fluids.

Rotating the tubing carrier relative to a fixed compression roller eliminates flat spots and pulsation in fluid delivery.

Operating diaphragm outlet port return flow obstructer prevents air re-entry into the dead space between the flexible cell wall and the pump mechanism.

Ultrasound color flow imaging measures velocity profiles within flowing fluids to determine rheological properties without mechanical sampling.

Switchgear segments electrical loads across multiple generators to prevent turbine wear caused by fluctuating wellhead pressure.

Reciprocating spring-biased fingers in a rotary axial peristaltic pump reduce tube stress and enable real-time pressure monitoring via strain gauges.

An elastic support member cushions dimensional tolerance variations in an inkjet tube assembly to maintain consistent pressing force.

A peristaltic hose pump uses a drive shaft to move a support element for automatic clamping.

A deformable pump ring with an S-shaped curve profile reduces principal strains during eccentric pressing to enhance secure anchoring.

A flexible bladder converts phase change material expansion into hydraulic pressure, resolving the trade-off between structural strength and thermal efficiency.

A peristaltic pump mechanism with a regulator unit controls flexible tube positioning for consistent fluid movement.

Piezoelectric displacement replaces complex mechanical linkages, eliminating structure complexity while maintaining nanoliter dosing accuracy.

Opaque frame blocks stray light from reaching fluid level detection sensors, preventing interference during cassette installation.

A fluid control device uses a projection to narrow the distance between the actuator and flexible plate, increasing discharge pressure.

Segmenting the drive and delivery units eliminates bulky manifold systems, reducing material consumption while improving serviceability of wear parts.

Mismatched curvature induces buckling in elastic sheets, while stopping members manage transverse deformations for coordinated wave motion.

A peristaltic pump moves a flexible tube relative to the compression element to distribute mechanical deformation across multiple sections.

Segmented motor housing and self-sealing valves enhance pumping accuracy while reducing failure rates and maintenance complexity.

Chamfered valve projections and annular grooves minimize ice formation from rapid exhaust temperature drops, maintaining high average output pressures.

An electroosmotic pump shaft assembly changes shape longitudinally to maintain airtightness within the fluid housing.

An elastic diaphragm pump maintains constant intermediate chamber volume via a miniaturized compensation system, preventing suction capacity loss from leaks.

Infrared emitter and detector replace magnets to ensure accurate loading, preventing misalignment errors in patient infusion systems.

A portable peristaltic pump uses closed-loop feedback to deliver therapeutic fluid with consistent dosage.