Engine Seals TRIZ Cases

A guide member in the rotor blade shroud cavity redirects seal leakage flow to align with the main stream and cut turbine mixing loss.

A tubular bulkhead seal uses dual mechanical seals, one hydrodynamic bearing, and a flushing circuit to cut size, cost, and maintenance.

Clamp-less hydraulic latching and modular seal carriers cut drilling downtime, wear, and bearing maintenance while preserving mandrel stability.

A convex or angled support ring backs the primary seal lip to resist extrusion, reduce wear, and maintain tight sealing under pressure.

Surplus gland steam is rerouted from sealing duty into the low-pressure rotor flow path, cutting condenser losses and improving turbine efficiency.

Multi-axis stepped grooves redirect flow to build a stiff thin film between runner and seal ring, limiting fluid migration and seal wear.

Off-center unsymmetrical gasket ribs and an outer ledge reduce compression shear stress while preserving sealing between heat exchanger plates.

A retainer ring with different thermal expansion constrains the magnetic seal body to limit coning, corner wear, and seal instability.

Rolling mechanisms replace sliding contact on the sealing band, cutting wear, particle escape, and accuracy loss in linear modules.

A bypass flow path feeds hot, high-pressure CO2 to the intermediate labyrinth to prevent condensation, reduce leakage, and inhibit corrosion.

A four-line seal gas layout simplifies turbomachine sealing and uses differential pressure to detect faults more reliably.

A deflector ramp and spaced teeth turn leaking airflow inward and trap particles to protect compressor bearing support housings from erosion.

A tapered pilot ring and rear-seat cavity guide carbon rings during assembly to reduce chipping, misalignment, and premature seal maintenance.

Optimized half-bead bend radii and profile help a metal gasket resist head lift loads, prevent sealant cracking, and maintain liquid hole sealing.

Recessed dynamic-pressure grooves in a transmission seal ring cut sliding resistance while preserving sealing performance and durability.

A protective case hides the fastening portion in an aerosol heater assembly to prevent damage, arbitrary disassembly, and operation failure.

Multi-stage seals, leak-proof chambers, and drainage protect tidal generator rolling bearings from seawater ingress and cut maintenance cost.

Stepped seal-ring surfaces with radial and oblique fins preserve rotor-stator gap control under thermal expansion and eccentricity, reducing leakage.

An added floating sealing element creates a pressure drop that cuts main seal load, reduces leakage, and stabilizes high-pressure pump sealing.

Tabs in shroud slots stop carbon seal carrier rotation after bellows failure, limiting wear, damage, and seal instability.

Engineered metal seals with ductile plating and optional springs cut pre-combustion chamber leaks under cyclic heat and pressure.

Magnetic particles released from an abradable seal coating reveal worn contact conditions early, helping prevent leakage and efficiency loss.

Sliding compliant seal segments form a solid ring during expansion and retraction, reducing extrusion gaps and stress under high pressure.

Shallow grooves on the slinger intersect the end-face lip contact area to stop static leakage without raising shaft sliding resistance.

An inclined sound insulation ring and sliding lip keep the sealed space closed under shaft eccentricity, reducing sound transmission over time.

Different gasket and device slope gradients create self-deforming contact that seals reliably without precise force distribution.

Compressed liquid from a hydrostatic bearing seals the member gap by surface tension, avoiding compressors and extra gas supply parts.

An integrated seal routes cleaning liquid into cup channels, simplifying teat cleaner assembly while improving wash coverage and maintenance.

A layered wire-mesh and solid-shim seal conforms to misaligned turbomachinery parts to cut leakage under high temperature and pressure.

Pre-aged, geometry-matched process seals stabilize creep and clamping force, enabling replacement without recalibrating pressure sensors.

A flanged spring guide varies flange width to tune coil spring compression in gas turbine face seals without using multiple spring types.

A stepped locking structure distributes screw force evenly across a waterproof ring to prevent seal damage and moisture intrusion.

LCST compounds in aqueous isolation control butyl rubber agglomeration while avoiding metal ion contamination and cure-system interference.

Pre-installed weather seals in a dovetail base shoe improve glass panel safety, while a recessed taper plate layout speeds stuck plate removal.

Integrated side plates and a block body help thin plate seal pieces maintain floating performance while suppressing fluttering and abrasion.

A textured stopper on the case fitting surface restrains bellows seal rotation, preserving long-term mechanical seal stability.

A cylindrical bearing centers the frac pump plunger within the packing assembly to cut wear, prevent premature failure, and reduce downtime.

Asymmetrical locking strips and hinged side wings enable tool-free panel removal while maintaining watertight sealing through repeated use.

A wave spring and compliant ceramic seal maintain contact during axial and circumferential movement, reducing leakage at high temperature.

Upstream-angled labyrinth seal fins improve bearing cavity sealing and direct lubricant back during shutdown when compressed air is low.

A slotted wear ring with wedge-based adjustment keeps the suction neck gap minimal in service, cutting bypass losses and maintenance downtime.

Overlapping seal ring segments with pins and slots allow radial movement to maintain contact and reduce turbine air leakage under vibration.

A ring-shaped rear impeller seal creates a low-pressure inner space to curb fluid leakage, reduce axial thrust, and stabilize turbomachine operation.

Circumferential pressure grooves maintain sealing under shaft offset while higher radial clearance cuts friction and wear.

A rigid plastic band with separated elastomer seals prevents gasket twisting, cuts rubber use, and maintains low-pressure pipe sealing.

A movable cover, sliding block, and elastic sealer prevent e-liquid leakage during refilling while the integrated lock resists child opening.

An eccentric seal groove and asymmetric pressure balance groove help a single-piece pump bearing cut internal leakage without losing alignment.

Machining strip ends by bumping, broaching, or scraping smooths rough cut edges so low-strength welded rings can be laser-welded reliably.

Integrated LEDs, wireless signaling, and fluorescent covers make temporary aircraft opening markers easier to find and remove, reducing FOD risk.

Hydraulic closing and pneumatic opening forces keep coolant sealing accurate, then separate seal faces to prevent dry-running damage.