Spark ignition engine fuel injectors run in the 20-to-50 pounds-per-square-inch range, while modern compression ignition engine fuel injectors run in the 30,000-to-50,000 psi range.

Having ample heat in the combustion chambers is key to making HCCI work. The engines use a conventional spark ignition for cold starts and when HCCI is disengaged.

Two primary types of internal combustion engines exist: a spark ignition gasoline engine and a compression ignition diesel engine. Spark ignition and compression ignition differ in how each delivers ...

A few years ago sparkless ignition or homogeneous charge compression ignition (HCCI) in gasoline engines was all the rage, with a number of major automakers including General Motors, Daimler and ...

Without getting into too much detail, gasoline engines, which typically run cooler as a result of a lower fuel-mixture ignition temperature use spark plugs to ignite the fuel/air mix that has been ...

A homogeneous charge compression ignition engine is a gasoline engine without a traditional spark ignition to initiate combustion.

We know that Spark Ignition (SI) engines are inefficient, we know that Compression Ignition (CI) engines have bad emissions, and we know that Homogeneous Charge Compression Ignition (HCCI) engines ...

Swapping spark plugs for nanopulses could boost engine efficiency by 20% More precise ignition events mean better fuel efficiency and fewer pollutants.

In this work, a light-duty research engine based on a passenger car engine is equipped with an in-house developed pre-chamber (PC) ignition system replacing the conventional spark plug.

Amid all the hype for electric cars, Mazda is making impressive improvements to gas-powered engines. I took a spin in a prototype powered by the first gasoline compression ignition engine, which ...

ABSTRACT Abnormal combustion referred to as Low Speed Pre-Ignition (LSPI) may restrict low speed torque improvements in turbocharged Direct Injection (DI) - Spark Ignition (SI) Engines. Recent ...