Mechanical Suction Control TRIZ Cases

See how motor input power adapts to inlet restriction by measuring pressure and airflow instead

See how a rotor with spiral opening and blocking part overlaps with a drum casing slit to conce

See how a movable shielding member enables a vacuum cleaner module to suck edge-region dust thr

See how a dual-inlet nozzle with rotatable rear-facing suction enables debris collection during

See how a distance adjustment device with inclined slopes and interval protrusions resolves the

See how an automatic flow control valve regulates suction to pool cleaners across variable pump

See how segmented unit mats with standardized connections enable on-site size customization wit

See how a dual-inlet vacuum nozzle with removable inspection hatch enables internal duct access

See how a friction-driven movable block inside the nozzle cavity automatically adjusts suction

See how a movable valve directs airflow between nozzle and handle connections, enabling floor-n

See how repositioning the vacuum tube exit away from the negative pressure source reduces turbu

See how a vacuum cleaner assembly divides into two pivotable suction arms that rotate up to 90

See how bypass air flow paths in a vacuum floor nozzle reduce throttling and pushing force on d

See how a controllable motor bypass adjusts cooling airflow dynamically, reducing flow resistan

See how a movable frame and air hole mechanism in the suction portion adjusts contact and sucti

See how a leading roller and brush roll work together to prevent debris snowplowing and suction

See how a rotatable duct and friction seal enable a vacuum tool to nest on the cleaner body, el

See how a movable valve directs airflow between nozzle and handle ends, enabling floor nozzle a

See how a unitary tubular passageway with contoured walls creates a vortex expansion chamber, b

See how a height-adjustable nozzle with a linked bleed valve prevents suction lock on high-pile

See how an automated valve assembly adjusts airflow based on suction sensors to maintain consis

See how movable flexible vent members prevent seal formation on soft carpets by relieving sucti

See how wheel-driven rotating discs alternatingly open side openings to maintain airflow veloci

See how a manual height adjustment assembly with integrated bleed valve reduces suction force t

See how an adjustable vent system enables dynamic suction control, preventing the vacuum from s

See how a deformable link and conversion valve enable seamless floor-to-above-floor mode switch

A detachable slide shoe lifts the vacuum head and vents suction to cut push force on soft carpets without sacrificing cleaning performance.

A housing-mounted secondary air opening with a slide valve enables stepless suction control while damping the noise caused by in-channel regulators.

Cyclic sealing-lip opening creates pulsed airflow at the suction mouth, improving dust mobilization, brush self-cleaning, and filter life.

A deformable link and bypass airflow path let the conversion valve switch floor and above-floor modes without interrupting suction.

An integrated bleed valve and nozzle height adjuster prevents vacuum lock-down on super soft carpets, cutting push force while maintaining cleaning.

A float blocks liquid from the impeller intake while a bypass vent keeps cooling air flowing to the motor to prevent overheating.

Opposing high-pressure and vacuum airflows dislodge and capture stubborn dust in a handheld cleaner, enabling touchless cleaning of delicate surfaces.

An oscillating movable surface creates a synthetic jet that frees and transports dust from carpets while cutting suction noise and power use.

A pressure-responsive nozzle coupling counters suction-induced sticking, helping autonomous vacuum cleaners keep traction on soft floors.

A movable secondary nozzle switches between high flow and higher vacuum suction, adapting to container type while preventing overpressure.

Retractable bristles and vacuum airflow dislodge and carry away entangled pet hair, avoiding manual cleaning and contact with dander.