Squish (piston engine)
From Wikipedia, the free encyclopedia
Squish is an effect in internal combustion engines which creates sudden turbulence of the fuel/air mixture as the piston approaches top dead centre (TDC).[1][2]
In an engine designed to use the squish effect, at top dead centre (TDC) the piston crown comes very close, (typically less than 1mm[2]), to the cylinder head. The gases are suddenly "squished" out within the combustion chamber, creating turbulence which promotes thorough fuel/air mixing, which is beneficial for efficient combustion. Squish effect may be used in conventional ohv and ohc engines, and also in engines with a Heron cylinder head .
References[edit]
- ^ "How to Measure Your Cylinder Head Squish Clearance..." Retrieved 16 June 2013.
- ^ a b "The Combustion Chamber" Retrieved 16 June 2013.
Bibliography[edit]
- Progress Report for Combustion and Emission Control for Advanced CIDI Engines. United States Office of Transportation Technologies, United States Department of Energy
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