What Is a Fuel Rail?

Supplying high-pressure fuel to the engine combustion chamber

A fuel rail, one of the critical components of the fuel injector, is responsible for stably supplying fuel, such as gasoline, to the injector. Used in advanced direct-injection gasoline engines, a fuel rail helps achieve high levels of fuel efficiency and environmental performance.
To respond to the market environment, which is experiencing enhanced regulation of exhaust gas and increasing demand for higher fuel efficiency and higher performance, we are developing technology for achieving higher fuel pressures.

Features of our fuel rail

• Made of stainless steel to achieve excellent environmental, fuel, and corrosion resistances.
• Structured based on soldering to achieve higher design flexibility and lower production costs.
• Optimized in shape to achieve both of lightness and resistance to high pressures