Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
F02B25/02—Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging
F02B25/04—Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke
F02B25/06—Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke the cylinder-head ports being controlled by working pistons, e.g. by sleeve-shaped extensions thereof