with reciprocating-piston pumps other than simple crankcase pumps

Full Title

Engines characterised by provision of pumps for charging or scavenging > Engines with reciprocating-piston pumps; Engines with crankcase pumps > with reciprocating-piston pumps other than simple crankcase pumps

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• F02B 33/08 with the working-cylinder head arranged between working and pumping cylinders
• F02B 33/10 with the pumping cylinder situated between working cylinder and crankcase, or with the pumping cylinder surrounding working cylinder
• F02B 33/18 with crankshaft being arranged between working and pumping cylinders
• F02B 33/20 with pumping-cylinder axis arranged at an angle to working-cylinder axis, e.g. at an angle of 90 degrees
• F02B 33/22 with pumping cylinder situated at side of working cylinder, e.g. the cylinders being parallel