What is a fuel atomizer?

in internal-combustion engines, the mixing of fuel with air or some other oxidizer within the engine in order to achieve complete and rapid combustion of the fuel.

How does a fuel atomizer work?

In this process, fuel is forced through a small jet opening under extremely high pressure to break it into a fine misted spray. From here, the mist is mixed with air (emulsified) and then vaporized into a rarefied form appropriate for use by an internal combustion engine.

What is atomizer in engine?

Atomization is the process of converting bulk liquid into fine droplets. Efficient atomization produced by particular atomizer is an important and the basic requirements in the various combustion applications (Gas turbine, Liquid rocket engine, ramjet, scramjet propulsion etc.).

What are the two types of fuel injectors?

• Single-Point or Throttle-Body Injection.
• Port or Multipoint Fuel Injection.
• Sequential Fuel Injection.
• Direct Injection.

Do fuel injectors atomize fuel?

A common practice in fuel-injection-system design is to place the injector so the spray pattern hits the stem of the intake valve. This high-speed collision helps break the fuel into smaller particles and the heat of the intake valve helps the fuel to vaporize.

How do we recognize a leaking fuel injector during testing?

Look very closely at each fuel injector head where it connects to the fuel rail. Look for any obvious dribbling leaks or fuel spray pattern on the rail, injector body or cylinder head. Smell for gas. A leak at the injector head will indicate bad O-ring seals inside the injector body.

Why must fuel be atomized?

The more surface area, the faster the conversion to gas. As the engine speed increases, the velocity through the intake manifold also goes higher, and more of the fuel is atomized than would be at low speeds. Thus, it’s very important for the fuel to be completely atomized.

Does a carburetor atomize fuel?

Any carburetor design is paramount to the atomization of the fuel. The goal is to create as high a velocity as possible for the best atomization. The smaller the fuel droplets, the greater the surface area for a given amount of discharged fuel.

What is fuel vaporization?

A closed fuel vaporization system has been provided for an internal combustion engine wherein liquid fuel droplets are injected into a vacuum chamber where they are immediately vaporized to form a gaseous fuel.

What are the symptoms of a leaking fuel injector?

Signs of Leaking Fuel Injectors

• Fuel consumption increases.
• Poor and shaky idling.
• Gasoline smells.
• Hard starts.
• Bad emission performance.
• Thinning oil.
• Hydrolocking.