Glossary: Engine Blocks and Cylinder Heads

A material with a movable negative charge.

A plasma-spray welding technique developed by Mercedes-Benz to coat cylinder walls with a tool-grade hardness iron alloy.

An engine that uses only atmospheric pressure, not pressurized air, to charge the cylinders with air.

An engine that uses only atmospheric pressure, not pressurized air, to charge the cylinders with air.

Also called a nozzle lift sensor ; it is a sensor that provides a reference signal to the electronic control module for the BOI by providing information about the movement of the nozzle valve.

A fuel pathway from the APCR injectors leading to the low-pressure fuel module, which drains fuel from the nozzle control valve; also known as a nozzle return circuit .

A technology used by exhaust gas sensors that measures the unknown gas concentration by comparing it to a known gas concentration.

A point on a network.

A stainless steel–nickel alloy insert placed in aluminum pistons in the compression ring groove. The insert minimizes groove wear caused by ring movement.

An unstable, highly reactive, colorless gas. It is the most abundant type of NOx produced during diesel combustion. It is a noxious respiratory irritant.