Pressure Injection Carburetor

A pressure injection carburetor is a type of carburetor that uses a pressurized fuel delivery system to supply fuel to the engine. Unlike traditional carburetors that rely on gravity to feed fuel into the engine, pressure injection carburetors use a fuel pump to pressurize the fuel and deliver it to the engine at a consistent and controlled rate.

The main advantage of a pressure injection carburetor is that it allows for more precise fuel delivery, resulting in improved engine performance and fuel efficiency. By pressurizing the fuel, the carburetor can atomize it into smaller particles, which promotes better combustion and reduces fuel waste.

Pressure injection carburetors are commonly used in high-performance engines, such as those found in racing cars or motorcycles. They are also used in some small aircraft engines. However, with the advent of electronic fuel injection systems, pressure injection carburetors have become less common in modern vehicles.

It's important to note that pressure injection carburetors should not be confused with fuel injection systems. While both systems deliver fuel to the engine, fuel injection systems use electronic sensors and injectors to precisely control the fuel delivery, whereas pressure injection carburetors rely on mechanical means to pressurize and deliver the fuel.