Multi-cylinder machines or pumps characterised by number or arrangement of cylinders (machines or pumps with pistons coacting within one cylinder F04B3/00)

Child Classifications

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• F04B 1/005
• F04B 1/02 having two cylinders (in V-arrangement F04B1/04)
• F04B 1/03 with cylinder axis arranged substantially tangentially to a circle centred on main shaft axis
• F04B 1/04 having cylinders in star- or fan-arrangement
• F04B 1/12 having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
• F04B 1/34 Control not provided for in groups F04B1/02, F04B1/03, F04B1/06 or F04B1/26