At bottom-dead-center (BDC) the inlet valve is closed and the compression stroke (b) starts. Work is done on the air/fuel mixture as the piston moves to TDC. In the vicinity of TDC the spark ignites ...

Porsche's new patented six stroke engine might not be a thing of reality yet, but the new technology is still very ...

But it inserts an additional compression and power stroke in the middle (following the first power stroke) to create a 1080-degree combustion cycle. This works because at roughly 500 degrees of ...

In the CLOTS Trial 1, patients who were hospitalized for acute stroke were randomized to usual care plus thigh-high compression stockings or usual care with no stockings; no significant benefit ...

Traditionally, engines follow a four-stroke cycle, consisting of intake, compression, power, and exhaust. In contrast, the six-stroke engine introduces two additional strokes: compression and power.