fuel injection

Who invented fuel injection?

Jonas Hesselman

The concept of direct fuel injection has been around since 1925 when Swedish engineer Jonas Hesselman invented it. During WWII, some fighter planes were equipped with direct fuel injection to prevent stalling during high speed aerial maneuvers.

What is a fuel injected bike?

The first thing you'll hear at a debate on carb versus fuel injected bikes is cold starts. Carbureted motorcycles need some time until they are ready to hit the road at low temperatures. The choke system is used to start cold engines.

Does fuel injection increase horsepower?

A larger high-performance throttle body will deliver more horsepower. Depending on what type of engine you have, you can gain as much as 10-20 more horsepowerand comparable torque. ... Also remember that a larger throttle requires higher-flowfuel injectors. Throttle body and injector size are proportional.

What is the advantage of fuel injection?

Benefits of fuel injection include smoother and more consistent transient throttle response, such as during quick throttle transitions, easier cold starting, more accurate adjustment to account for extremes of ambient temperatures and changes in air pressure, more stable idling, decreased maintenance needs, and better ...

Which is better carburetor or FI?

FI is generally better than carburator. It gives you better fuel efficiency and betterthrottle response. But then, generally carburated engines can be easily repaired by any local mechanic and cheaply too. ... FI ones have better performance overcarburetors as they have linear air to fuel mix ratio

• 1 Types of Fuel Injectors
  • 1.1 Throttle Body Injectors
  • 1.2 Central Port Injectors
  • 1.3 Multiport and Direct Fuel Injectors
    • 1.3.1 Multiport Fuel Injector Components
• 2 How Does a Fuel Injector Work?
  • 2.1 Fuel Injector Pintle Valves
  • 2.2 Fuel Injector Poppet Valves
  • 2.3 Fuel Injector Pulse Width
• 3 Fuel Injector Failure

There are a few different kinds of fuel injectors, and while they all perform the same function (spraying a precise amount of fuel when activated), they don’t all have the same components or design. The three main types of fuel injectors are:

• built into a throttle body (single point injection)
• centrally located (central port injection)
• located at each cylinder (multiport injection, direct injection)

The reality is that the many different types of fuel injectors are much more complex than those three generalized categories, and there are a number of subtypes of each, but we’ll consider these basic types of injectors for the sake of brevity.

Multiport Fuel Injector Components

A typical multiport fuel injector consists of a:

• structural body/housing
• inlet
• filter basket
• electrical connector
• solenoid
• pintle valve
  • pintle valve return spring
  • pintle cap
  • pintle seat
• outlet

How Does a Fuel Injector Work?

Although they all perform the same function, fuel injectors don’t all work in precisely the same way. The two main types of fuel injectors use either a:

• poppet valve
• pintle valve