Engine Seals TRIZ Cases

Integrated centering lips eliminate complex retainers, reducing inventory costs while ensuring consistent alignment in semiconductor fluid delivery systems.

Rotating shaft fan creates positive pressure zone that stops oil leakage without adding complex sealing hardware.

Compressible O-rings float the sensor within dual housings, absorbing thermal expansion and vibration stress while maintaining a reliable seal.

Adjusting magnetic field strength based on sensed axial separation prevents seal face contact caused by buffer gas contamination.

A damper device uses a circular groove and step surface to position seal rings on the inner part.

A PTFE sealing element fixed by a spring steel clamping ring provides circumferential sealing in fan housings.

A movable seal transitions between engaged and disengaged positions relative to a flexible door body.

Segmented vessel design enables clean-in-place sterilization of barrier fluid, preventing pathogen growth in continuous industrial operations.

A contactless seal uses an injector to issue fluid into a gap, magnifying a vortex against a second structure.

Segmenting the liquid supply from the heating element prevents tobacco liquid leakage during transport while maintaining reliable electrical contact.

Curved sidewalls distribute pressure to reduce stress concentrations and prevent O-ring loss during maintenance.

Segmented bracket extension increases height difference to allow automatic face fabric wrapping without reducing the sunroof opening area.

Repositioning the fit-in groove to overlap the sheet member moves tension points inward, reducing interface force during weatherstrip removal.

A flexible flow control bushing uses self-lubricating composite materials to reduce friction and heat in rotating shaft seals.

Nested filtering material inside the sealing component reduces axial profile while eliminating leakage risks from separate coupling interfaces.

Aerosolized sealant particles deposit at leak sites to seal building envelopes, reducing labor costs and improving sealing efficiency.

A pump sealing device integrates O-rings and a locking pin to secure component alignment.

Tolerance rings increase radial stiffness to stabilize rotor shafts at high speeds, reducing bearing count and complexity in small diameter motors.

A conjunction assembly uses an elastic support and sliding mechanism to maintain contact between the combustor ring and turbine inlet cylinder.

Concave backup rings hug seal elements to constrain material extrusion during repeated piston reciprocation.

Beam spacer absorbs vibrational energy between inner and outer beams, reducing wear on gas turbine engine components.

A carbon seal assembly uses an unmachined electroless nickel coating on the sealing land to resist fretting and vibratory wear.

Parallel flat protrusions on a metallic sealing member deform elastically under compression to seal rough mating surfaces without precision machining.

Autofrettaging inner disc lubrication ducts followed by face machining to remove outer layers, preventing crack propagation under pulsating pressures.

A dust sealing member uses a closed cross-section to maintain contact pressure against vehicle door sills.

Pulse width modulation drives lamps based on average peak gray levels, reducing power consumption while maintaining high brightness differences.

Polyurethane seals isolate centrifuge drive portions from effluent leakage using flexible containment.

Integral support beams in the metal core clamp an upstream strainer, preventing foreign material contamination upon gasket failure.

Merged seal and damper structure reduces vibration while minimizing centrifugal force and stress concentrations on gas turbine blades.

Segmented seal segments slide on trunnions within mount holes to reduce manufacturing scrap and material waste during machining.

Differentiating the radius of curvature between front and rear corners on laminated circular ribs reduces sliding resistance while maintaining airtightness.

Metal injection molding forms a seal that eliminates leaks between the gas chromatography column and inlet assembly, maintaining analysis accuracy.

A press-fit sleeve protects the compressor housing bore from knife seal wear, enabling repeated plasma-sprayed repairs.

Asymmetric tapered radial portions prevent binding between adjacent components while maintaining sealing effectiveness in gas turbine engines.

Asymmetric tapered surfaces on a seal ring distribute hydraulic pressure forces to prevent inclination and ensure consistent sealing contact.

Integrated retaining elements in a flat seal secure electrical harnesses, preventing contact with rotating engine components while maintaining fluid tightness.

Thin elongate lips flex under misalignment to reduce friction while preventing contaminants from entering the bearing unit.

A pressure balance pocket equalizes high pressure around the seal contact surface, reducing frictional forces that cause unpredictable motion and bristle wear.

Single-layer cold rolled steel carrier with multi-layer sealing ring secured by spot welded tabs and elastomeric beads for coolant and oil passages.

An elastic deformation member in a shaft sealing device mitigates internal pressure fluctuations caused by thrust movement, reducing torque on the rotary shaft.

Radial sliding bearing with fluid introduction holes prevents fluid concentration and reduces frictional heat without adding external circulation components.

Segmented locking collars eliminate disassembly by pivoting around shafts, fixing axial positions without flexible packing rings.

A hybrid door outside belt uses a PVC skin layer for scratch resistance and a TPV main wing for sealing.

A squeeze packing features a three-dimensional curved cut surface that enables accurate alignment and intimate attachment without adhesives.

Thermal expansion channels in the pack-box absorb transverse bearing growth, preventing packing ring compression and flush fluid leakage.

A one-piece EPDM seal with a funnel-shaped lip mounts on ring filter end disks, reducing assembly force and enabling separate cleaning.

Segmented dust seals with tapered fixing members enable rapid replacement without rod withdrawal, reducing operational downtime.

An elastically deformable body within a gas-tight shell expands to seal gaps without continuous energy, preventing air leakage from sharp edges.

Direct electromagnetic heating of ferromagnetic seal faces eliminates slow thermal conduction, reducing pre-heating time and power consumption.