Multicopters would be able to lift heavier loads and stay in the air longer if they could use a high-density power source like gasoline instead of low-density lithium batteries. But gasoline engines, ...

But combustion engines aren't well suited to delivering the near-instant torque adjustments required to balance a multicopter in the air. Flowcopter's solution is to run a Rotax aviation engine ...

The little-known and largely undervalued hydraulic hybrid could play a role in heavy-duty trucks over the next 10 years, and may even find application in next-generation cars, a new study says. The ...

Ford Motor Company and Eaton Corp. recently introduced a regenerative braking system called the hydraulic launch assist (HLA). The system is designed to improve fuel economy in large trucks during ...

Some Enginology columns ago, we spoke about the functionality and benefits derived from in-cylinder pressure measurement in increments of crankshaft angles. In that discussion, we noted several useful ...