F02B27/0247 - CPC Classification Index

ClassID:

138680 ⎘

F02B27/0247 - CPC Classification

Classification description:

Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means characterised by the means generating the charging effect Plenum chambers; Resonance chambers or resonance pipes

Sub-classes:

F02B27/0252 » {Multiple plenum chambers or plenum chambers having inner separation walls, e.g. comprising valves for the same group of cylinders} 42
F02B27/0257 » {Rotatable plenum chambers} 4
F02B27/0263 » {the plenum chamber and at least one of the intake ducts having a common wall, and the intake ducts wrap partially around the plenum chamber, i.e. snail-type } 41

Recent Application in this class:

20140312258

Airtightness maintaining structure for butterfly valve

20090194056

Intake system with resonator

20090031981

Intake system

20080072863

Multicylinder internal combustion engine with resonator

20070022996

Expandable manifold