A compound internal combustion engine is a type of internal combustion engine (ICE) where gasses of combustion are expanded in two or more stages. A typical arrangement for a compound ICE is that the fuel/air is first combusted and expanded in one of two alternating 4-stroke combustion high-pressure (HP) cylinders, then having given up heat and losing pressure, it exhausts directly into a larger-volume low-pressure (LP) cylinder, where it is re-expanded extracting more work from it.
The crankshaft is arranged so the two high-pressure cylinders have synchronized reciprocating motion, while the low-pressure cylinder throw is positioned at a 180-degree phase difference from the high-pressure throws causing opposing reciprocating motion between the high-pressure and low-pressure cylinders.
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A compoundinternalcombustionengine is a type of internalcombustionengine (ICE) where gasses of combustion are expanded in two or more stages. A typical...
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