Cylinders TRIZ Cases

A rotatable sleeve seals the venting duct during shipping, preventing trigger dispenser leakage while preserving suction function in use.

A forming die and pressure rollers shape a hollow engine valve in one process, cutting tool wear, process steps, and manufacturing cost.

Tapered opening and cover surfaces guide and elastically compress the stop ring, simplifying cylinder assembly and supporting automation.

Radial compression after straightening reshapes residual hoop stress in metallic tubular products to improve collapse resistance while maintaining straightness.

A rotatable vent sleeve seals the trigger dispenser vent during transport, preventing leakage and unintended activation without blocking suction.

Synchronized revolving and rotation let one cold-forming tool create long, precise profiles near shoulders with high surface quality.

Laser ring welds replace threaded end closures in a working cylinder, cutting material use, machining, wear, and sealing parts.

Axial pressing of a large-diameter tube section forms a flange while preserving wall thickness and shaft strength under spinning.

Laser cladding controls intermetallic dispersion and interface contact in Sn alloy sliding members to improve bonding and fatigue resistance without Cd or Be.

Synchronized orbiting and tool rotation enable flexible cold-forming profiles with high surface quality, long lengths, and machining close to shoulders.

Synchronized cams cold-form pipe grooves with fixed-radius profiles, improving groove precision while reducing setup time and operator involvement.

Spin extrusion forms hollow engine valve preforms in fewer steps, cutting tool wear, welding seams, and material waste.

A single-cast nickel superalloy transition piece removes welded joints, improving fatigue and creep resistance in hot gas path service.

A stop-cup and segmented cam profile improve circumferential pipe groove precision while raising grooving speed and reducing operator intervention.

Inner and outer annular jet cooling suppresses temperature reversion and uneven grain growth in hot-rolled cylindrical shells.

Variable-radius cam rollers form precise circumferential pipe grooves in one revolution, reducing setup effort and operator intervention.

A cam profile and traction surface form circumferential pipe grooves in fewer revolutions while reducing operator adjustment and machine complexity.

Fiber-reinforced thermoplastic actuator housing replaces metal end pieces to cut weight while managing dual-direction tensile and compressive loads.

A wedge-shaped intermediate body with replaceable spacers adjusts roller penetration depth to keep tooth gaps accurate without roller replacement.

Rotating profiling rollers form internal longitudinal ribs in drum-wall tanks without cutting, preserving outer shape and avoiding complex mandrels.

Roll forming creates a monolithic internally cooled engine valve with a larger intact coolant cavity, improving heat transfer and lowering cost.

Controlled radial compression after rotary straightening reshapes residual hoop stress in metallic tubes to improve collapse resistance.

Synchronized cams form precise circumferential pipe grooves in one revolution, reducing operator intervention and groove-forming time.

A layered guide, energizer, and support sleeve cuts hydraulic hammer piston weight while improving sealing and simplifying fabrication.

Cross-wedge rolling forms internally cooled poppet valves with less material waste, lower torsional load, and minimal final machining.

Eddy current sensing of die witness marks enables continuous servo die matching, cutting manual setup time and maintaining fastener rolling precision.

Unidirectional solidification limits Bi near the bonding interface, improving slide member durability and preventing sliding layer fall-off.

Witness marks and eddy current sensing let servo motors continuously correct cylindrical die position, reducing manual matching time.

A rotating profiling roller forms internal tank ribs without cutting or a matched inner mandrel, lowering cost while preserving the outer profile.

Low-temperature CMT welding joins the piston-cylinder head without damaging thermoplastic seal gaskets, cutting cooling time and assembly cost.

Cross-wedge rolling forms hollow-shank poppet valves with high accuracy, lower material waste, and reduced roller wear.

Machined end sealing closes hollow spring ends before coiling to block inner corrosion, coating entry, and clearance at the spring ends.

Axial integration of the oil pot reduces assembly complexity while maintaining hydraulic sealing effectiveness.

A hydraulic jack employs a movable tube resting at the reservoir lowest point to maintain fluid flow and enable lifting in tilted or upside-down positions.

Segmenting a cylinder liner into zones of varying roughness balances lubrication needs against combustion chamber oil carryover to cut particulate emissions.

Segmenting a cylindrical blank with longitudinal grooves controls material displacement during thread rolling, preventing lateral escape and burr formation.

Ironing forms the outer peripheral introducing portion of a transmission cylinder member, eliminating flange trimming steps to reduce equipment investment.

Alternating notches create passages for gas escape, preventing blowholes and maintaining weld quality.

A rodless cylinder uses inclined band accommodating depressions to constrain inner seal band movement along the slit.

Segmented bore pin holds removable cylinder liner creating gas discharge gaps that eliminate carbide buildup and reduce cleaning downtime.

An unformed bridge between inner and outer diameters increases engine-speed strength, preventing high-speed deformation.