Fuel Injection Apparatus TRIZ Cases

Offset perforated disc outlets create swirl to improve atomization quality at low pressure.

Heated resin evolves OH− to supply oxygen, suppressing vacancy migration and maintaining displacement in high-temperature conditions.

A hybrid connector combines a plastic base with a metal mandrel to optimize internal flow channels.

Air separation chamber in a diesel fuel pump module isolates gas bubbles from liquid fuel before the jet pump inlet.

A fuel injector uses asymmetric injection holes with equalized length-to-diameter ratios to stabilize spray patterns.

Segmented pilot valve design reduces leak oil flow and accelerates needle response, lowering specific fuel consumption.

Asymmetric nozzle hole geometry prevents spray interference and negative pressure formation while inhibiting deposit accumulation on inner walls.

Plastic overmolding merges return and electrical connections to reduce construction complexity and production costs.

Rotating tubular valve aligns staggered ports for timed fuel delivery, eliminating complex camshafts and poppet valves to reduce engine maintenance.

A gap forming member with a single slide structure stabilizes needle reciprocation in fuel injection devices.

A downward-oriented poppet valve injector resolves limited engine head space by utilizing vertical z-dimension placement between intake valves and spark plugs.

Angular flange intercepts external contact to protect the quill tube sealing surface, ensuring reliable high-pressure fuel delivery.

A tapering inflow area with decreasing cross section optimizes fluid flow through injector through-openings.

A nozzle with a skewed orifice redirects pressurized fuel into the combustion chamber to enhance atomization.

A spacer forms a predetermined gap with an anchor using line or point contact to stabilize valve operations in fuel injection devices.

A fuel priming unit uses a pressurizable reservoir to move diesel fuel through a conduit for precise delivery.

Segmented nozzle through-holes maintain consistent mass flow rate at reduced pressures, resolving energy consumption trade-offs.

An annular space creates a liquid ring that balances pressure gradients, reducing cavitation risk in high-pressure internal combustion engine nozzles.

A control valve uses a compensation edge to form a throttle gap that stabilizes fuel injection dynamics.

Integrating a permanent magnet into the magnetic core adjusts armature force, reducing voltage requirements and minimizing closing bounces in injection valves.

Laser welding positions a noble metal firing pad flush with the ground electrode, reducing material costs while enhancing thermal management.

A pivot-based removal tool engages the injector and fuel pipe simultaneously to extract the assembly without disconnecting lines.

An elastic-force applying portion with a specific coefficient restricts movable core bounce, stabilizing injection amounts and preventing component damage.

An iron-base sintered alloy valve seat insert uses dispersed hard particles to reduce wear in gas fuel engines, improving durability.

Helical swirling chamber inner wall surface generates uniform fuel swirl flow for precise atomization.

Higher outlet channel roughness increases turbulent energy to resolve insufficient fuel atomization in injection holes.

Series pulse fuel pumps overcome insufficient single-pump pressure by combining outputs to meet high-flow demands of larger four-stroke engines.

A fuel injector nozzle valve element with a conical frustum-shaped flow-guiding surface directs fuel through an expanding channel.

Different magnetic materials synchronize saturation points to resolve trade-offs between compact volume and control reliability.

Integrated removal unit merges circlip, ferrule, cone nut, and screw tools to eliminate manual switching and reduce disassembly time.

Simultaneous welding of flange portions and curved retainer ring sections eliminates separate springs, lowering manufacturing costs while stabilizing fuel flow.

Integral convex mound on injector tip interior surface minimizes sac region volume to eliminate fuel dribble and improve emission quality.

Tapered elongated spray holes increase injection efficiency while maintaining mechanical strength.

A silicone resin coating on a spark plug insulator resists conductive deposits during cold starts while maintaining thermal stability above 500°C.

A flexible silicone rubber heat shielding sheet protects the throttle unit from engine cylinder heat without altering the motorcycle frame structure.

Rotation locking pieces engage contact surfaces to prevent relative rotation, ensuring stable fuel injection direction and constant positional relation.

A nozzle needle with a flow guiding tip directs pressurized fuel into spray orifices.

Reducing the sealing diameter below 3 mm minimizes wear area, maintaining consistent opening behavior despite high fuel pressures.

An injector apparatus uses offset pistons to compress fluid and control injection timing without external pumping systems.

A fuel pipe assembly uses a deformable clamp member to secure the conduit within a tube nut and locking nut arrangement.

A fuel injection valve uses a flat plane at the valve element end with inclined holes to improve atomization.

A fuel injector uses two actuators to lift a valve needle, with the first decoupling after initial movement.

Two nozzle control valves segment fuel flow into and out of the control chamber, resolving the trade-off between injection rate adaptability and static leaks.

Eliminating the inner accumulator dead volume in a sackless fuel nozzle valve needle prevents hydrocarbon emissions and improves combustion efficiency.

A fuel injector armature design positions the radial guide closer to the axis than the sealing edge to maintain uniform component heating.

An annular dead volume in the discharge chamber absorbs kinetic energy, reducing static pressure spikes and smoothing the flow curve.

Folded side walls on a cup-shaped suction filter element expand the filtration surface area, reducing pressure loss and extending component life.

A fuel injection valve control valve uses a force-balanced piston design to reduce hydraulic forces, allowing weak actuators and extending service life.

A single-piece valve piston integrates sealing surfaces to reduce inertia and pressure drop in large internal combustion engines.