Engine downsizing is a proven approach for achieving a superior fuel efficiency. It is
conventionally achieved by reducing the swept volume of the engine and by employing …

Engine downsizing, which is the use of a smaller engine that provides the power of a larger
engine, is now considered a mega-trend for the internal combustion engine market. It is …

During the latest years, downsizing in internal combustion engines has moved the operating
conditions of the compressor closer the surge limit. Surge onset depends on the geometry of …

A compound charging system that pairs a turbocharger with a supercharger seems to be a
potential trend for future passenger car gasoline engines, as the strength of both could be …

Throttling loss of downsized gasoline engines is significantly smaller than that of naturally
aspirated counterparts. However, even the extremely downsized gasoline engine can still …

In commonly applied one-dimensional choking models for radial turbines, choked flow is
assumed to appear in the geometrical throat of each stator and rotor. Coupled and complex …

Electrification of the powertrain system will play an important role in reducing fuel
consumption and engine-out emissions in the next few decades. Compared to the pure …

Engines equipped with pressure charging systems are more prone to knock partly due the
increased intake temperature. Meanwhile, turbocharged engines when operating at high …

The growing number of vehicles on the road has led to a rapid increase in fuel consumption
and toxic gas emissions, so the challenges in fuel efficiency improvement and reduction of …

Most downsized gasoline engines currently in the market place appear to have a
'downsizing factor'of approximately 30% to 40%. However, as concerns regarding fuel …