In its ideal form, a gas is heated at a constant pressure, expands isentropically, cools at a constant volume, and then is compressed isentropically before heating again.
In its ideal form, a gas is heated at a constant pressure, expands isentropically, cools at a constant volume, and then is compressed isentropically before heating again. In practice, a compression ratio of between 15 and 25 to 1 is necessary to implement it. Extremely useful in situations when weight is not an issue, it is frequently implemented as a 4-stroke engine in which no spark is necessary, as the oil sprayed into the compression chamber ignites on contact with heated air. The most efficient of all internal combustion engines, FTP, name this common type of engine, seen in boats, trains, and trucks.
In its ideal form, a gas is heated at a constant pressure, expands isentropically, cools at a constant volume, and then is compressed isentropically before heating again.
Diesel engine or Diesel cycle