TM

Westport^TM High-Pressure Direct Injection (HPDI) injectors provide a small diesel pilot spray and a larger gas spray. The diesel averages only about 5% of the total energy input and is used to start the main combustion of high-pressure directly-injected natural gas (methane). Westport HPDI injectors are common-rail, diesel actuated, and electronically controlled.

They can power engines up to about 24 bar BMEP at diesel-like efficiencies.