Engine Seals TRIZ Cases

An integrated elastomeric gasket combines support rings and sealing lips into a single component to block lubricant leakage and contaminant ingress.

A centrifugal pump seal ring uses a flexible annular lip to transition between rest and active configurations.

Segmented composite groove strip with flexible sealing lips prevents rainwater ingress into the engine compartment.

A lift assist system applies a return spring force to the side link, reducing manual effort required to move the heavy foldable roof.

Tapered recess in accumulator piston deflects pressure medium flow to separate particles, eliminating separate filter devices and reducing mechanical load.

An annular sealing ring with dual elastic lips compensates for component tolerances in EV charging housings, ensuring reliable dust and water protection.

Tensile elongation thins gasket plates without large presses or etching, resolving precision and cost trade-offs.

Wave-like intumescent members interspersed in foam provide spring recovery and vapor permeability for durable sealing.

A rotating assembly uses a helical protrusion to displace mud and debris from the seal cavity.

Bulb seals in the gasket channels conform to curved windshields, preventing air leaks without messy adhesives.

Hydrodynamic grooves pump gas to create a separation film between magnetic sealing rings, reducing friction and heat generation.

A guide blade uses a pressure-side fluid channel to actuate a movable sealing element within the blade leaf receptacle.

A flexible circular disc flips seal lips into proper orientation during automatic transmission assembly.

An internal metal foil seal separates during cover opening, eliminating elastomer adhesion and foreign object debris in seeker assemblies.

An over-molded compression limiter with aligned slots reduces manufacturing costs by enabling reuse of the protective component across multiple fastener cycles.

A radial seal with a non-rotationally symmetrical body and embedded stiffening elements provides dimensional stability.

Apertured front and back plates regulate gas flow across turbine seal leaves, resolving asymmetric pressure distribution that causes unbalanced lifting forces.

Ribs extending from thickened step portions distribute molten material flow evenly, suppressing shrinkage voids and enhancing mechanical strength.

Fluid circulation groove manages pressure gradients to prevent sediment accumulation on sealing faces while isolating the low pressure side.

Optimized silicone rubber seal hardness reduces starting torque and variability in low-speed rotation dampers.

A tubular shaft seal uses an actuator to slide a second element against a fixed first element, creating a fluid-tight barrier on the rotational axis.

A back plate reservoir recess anchors bristles using epoxy resin while preventing excess material from interfering with seal deflection.

A shaft-sealing device employs a guide slot in the inner annular surface to minimize turbulence at the coolant outlet, improving circulation efficiency.

Segmented guide tracks and rotating receiving devices resolve positioning accuracy issues in mass manufacturing door seal application.

A foamed rubber seal uses uncross-linked EPM to enhance sound insulation while maintaining lightweight properties.

Segmented annular gasket enables leak detection via discontinuities while maintaining structural integrity after crimping.

Wavy profiled metallic gasket concentrates screw forces to resolve irregular clamping pressure and complex structure trade-offs.

Flexible brushes on a hydrodynamic face seal continuously sweep away debris, preventing groove clogging and maintaining seal integrity in steam turbines.

A transverse projection on an extruded profile section guides punching and injection molding tools for precise assembly.

Disposable plastic gasket prevents corrosion between wheel rim and hub assembly, enabling easy separation without damaging components.

Segmented seals isolate motor coolant from gear lubricating oil to prevent mixing and maintain fluid purity.

Rust-proofing members on cylindrical surfaces prevent water ingress and bearing damage in vehicle propeller shaft support devices.

An annular flange defines a channel to trap coating particles, preventing lubricant contamination in axle assemblies.

A hybrid seal uses stacked elements and spring shoes to create primary and secondary seals.

Local quality variation in the intermediate plate prevents adjustment plate flapping under thermal cycles while reducing manufacturing costs.

Eliminating stress concentrators found in fibrous structures, the tape achieves higher tensile strength and reduces production costs.

A hydraulic actuator connects working chambers to an auxiliary chamber via a valve-like seal, entraining air bubbles from gear oil into the reservoir.

Active brazing eliminates metallization steps and reduces residual stresses in sodium-based thermal battery assemblies.

A hollow cylindrical bearing housing connects three bellows to form axial damping chambers for sound insulation.

A vehicle door seal uses two mechanisms with differently oriented contact surfaces to create independent sealing paths.

Dimples create a stable gas phase that blocks liquid movement, reducing friction and preventing leakage in mechanical seals.

A hybrid seal design segments leakage flow paths using radial and axial fins to restrict fluid movement between pressure zones.

UV curing eliminates high-pressure filling and complex clamping, enabling precise gasket production in small cavities.

Spring-driven axial positioning minimizes leakage flow between stator and rotor, optimizing compressor stage efficiency.

Recessed sectors in the elastomeric sealing element distribute strain energy evenly, reducing compressive force requirements and extending lifespan.

Tapered polyimide seal land creates controlled 0.006 inch radial clearance against knife edges, reducing air leakage losses in high-pressure air cycle machines.

Tangent end faces on guide blocks direct fluid flow within rotary seal glands, preventing turbulence and heat aggregation that cause leakage.

Centrifugal forces and density variations drive coolant recirculation in a gas turbine seal runner, reducing thermal stress damage.

Sealing member insertion groove features a protruding portion that maintains an opening width for trim strip installation.