A.Here's a pressure-volume diagram for a combustion engine. Although rough, it is an approximation of the so-called air-standard cycle. '' Point (a) is at atmospheric pressure, after which the air is ...

Spark-ignition and compression-ignition piston engines are currently undergoing intense examination as energy conversion devices. Much of this attention has been focused on the contribution of these ...

Homogeneous charge compression ignition (HCCI) engines combine a diesel's torque and fuel efficiency with a gas engine's cleaner emissions. The HCCI technique has been a goal of automakers since the ...

Diesel engines do their hardest work in the toughest jobs, from highway semis to construction equipment, and the reason they ...

For more than a decade, automotive engineers and researchers have been struggling to come to grips with a way to build an engine that runs on gasoline while harnessing the efficiency and torque ...

Achates Power and Aramco Services recently announced they will put a Ford F-150 on the road with a novel opposed piston engine under the hood, hoping to prove this exotic engine design is the future ...

1. EcoMotors is developing high-efficiency engines — specifically the unique opoc (Opposed Piston Opposed Cylinder) engine — for use in cars, light trucks, marine applications, agricultural vehicles, ...

Diesel engines are different from gas engines in numerous ways, including their use of high compression ratios. Here's why ...