Engine Seals TRIZ Cases

Magnets hold aft frame side seals across circumferential gaps, preserving alignment under heat and vibration to prevent combustion gas dilution.

Dual hooks on a support wall simplify attaching a shaft-hole seal to a panel while blocking foreign matter and sound through the gap.

An embedded fiber sheet stiffens resin seals for analyzer flow cells, preventing leakage, corrosion, and fluid contamination under high pressure.

Axial sealing webs and grooves form a labyrinth seal that limits wastegate spindle leakage while preserving thermal expansion clearance.

A stepped labyrinth clearance lets a spindle rotate while limiting fluid leakage, simplifying fluid unit mounting and replacement.

Stepped hydrodynamic grooves redirect gas flow to build pressure, keep piston rings separated, and reduce wear in intershaft seals.

A hydrostatic non-contact seal closes the stator-linkage gap to cut friction heat, ease assembly, and simplify replacement after incidental contact.

A sealed hanger-drive structure keeps the inner case closed while enabling uniform steam or hot-air treatment with lower vibration, noise, and garment damage.

Thin anti-slip protrusions on an elastic inner water stop member keep bolts from dropping off while preserving waterproof sealing and assembly ease.

An isolated secondary cavity supplies oil to hydraulic machine seals, preventing pressure-driven seizing and overheating without added axial size.

Additive-built cooling conduits around the piston rod improve heat transfer, simplify stuffing box manufacture, and reduce leakage points.

Additive manufacturing cuts rotating control seal cost while enabling reinforced elastomer geometry that resists drilling forces and wear.

Dynamic crosslinking balances fuel barrier performance with lower tensile elasticity in a thermoplastic fluororesin-fluoroelastomer blend.

A sliding coating and trough section let one hard seal ring design cut tooling cost while improving wear resistance and service life.

A notched dovetail groove and flexible graphite gasket improve seal retention under pressure reversals and resist extrusion.

A hydraulic rod seal and guide ring cut axial sealing force in decoking valves, reducing wear and extending repair intervals.

A deformable seal ring creates hydrodynamic lift and cooling flow to limit friction heat while maintaining sealing at high pressure and speed.

Elastic spacers lock onto the turbine frame pawl pin to stop mount link contact damage and avoid lost or forgotten wooden shims.

A retaining part built into the bearing assembly secures the bellow directly, shortening the slip stub while improving sealing and vibration resistance.

An integrated solid-shaft and female-tube structure with a hole cover blocks moisture ingress while preserving shaft travel and phase accuracy.

A sliding cap shields the seal from rough multi-port tube ends, then moves back so the seal can expand and prevent fluid leakage.

An elastic thermoplastic seal bridges toilet and ground drain pipes of different diameters while avoiding wax-ring temperature sensitivity.

Centrifugal force deforms the liner to seal against the closure member, removing separate seals and speeding filter servicing.

Radially balanced tabs and slots keep an aircraft engine seal carrier centered and resist rotation if the bellows spring decouples.

A two-stage rubber molding process forms seal members closer to flange-shaped base materials, reducing product size without enlarging the base area.

A differential-pressure valve lip built into the seal ring relieves trapped pressure, cutting friction and preventing seal damage.

Relief openings in segmented packing rings equalize pressure, reduce wear and extrusion, and maintain sealing in high-pressure piston compressors.

Specific seal-body and energizer ratios limit fluid intrusion behind the energizer, reducing back jetting damage and extending seal life.

A primer-coated metal sealing surface bonds polymer parts and a non-linear pull wire path simplifies assembly while preventing entrapment.

A self-locking bridge and connection-member structure secures gaskets on heat transfer plates without adhesive, reducing displacement and sealing risk.

A one-piece shaft sleeve and rotating seal element cuts seal size and leakage while maintaining reliable spring-loaded sealing in centrifugal pumps.

Offset deep and shallow grooves linked by a communication groove balance fluid film pressure, preventing cavitation at high rotation speeds.

A coated contact section and trough for a soft seal cut tooling cost while improving wear, heat dissipation, and sealing life.

Smaller molded sealing components join into a closed annular gasket for battery boxes, reducing tool size and cost while preserving sealing reliability.

A two-piece annular rotary seal forms a retained seal pocket, cutting assembly time and eliminating the bearing sleeve while handling misalignment.

Additive manufacturing with vulcanised thermoplastic elastomers creates variable-geometry aerodynamic seals for complex surfaces, cutting mould cost and weight.

Segmented gap supports shield the elastomer core in pipeline isolation seals, preventing creep across large extrusion gaps under high pressure.

Layer-by-layer elastomer deposition forms gaskets directly in enlarged or variable grooves, preserving sealing integrity after cleaning cycles.

Helical threads on a rotating collar create axial outflow that expels contaminants from bearing housings without close-fit wear or constant fluid supply.

A kammprofile gasket with C-ring ends and a core spring maintains sealing under flange flatness changes while reducing turbulence and structure cost.

A groove-mounted support element keeps the seal from being forced into pressure-induced gaps, improving fitting reliability with wider molding tolerances.

An annular channel and centrifugal ejection holes return leaked working fluid inward, helping rotating seals resist misalignment, wear, and leakage.

A compact seal layout uses a pop-out regulation portion and compressed secondary seal to shorten axial length while maintaining reliable sealing.

A recessed, polished sealing profile cuts wear during repeated compression, traps particles, and preserves chamber airtightness in substrate treatment.

Multiple cast oil pan segments maintain stiffness in large engines while reducing part weight, manufacturing complexity, and handling difficulty.

Multiple elastic sealing lips keep contact during ring axial displacement, helping rolling bearings block water and dirt ingress.

A modular sealing body, support, and guide let one hydroblasting tool use centrifugal or magnetic brakes while reducing jamming and leakage.

Tongue-and-groove segmented seal sections maintain flange sealing continuity during installation and remove the need for messy, non-reusable RTV.

Titanium oxide with controlled magnesium oxide improves HNBR gasket blister resistance and roll kneadability without sacrificing sealing strength.