F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
F03C1/00—Reciprocating-piston liquid engines
F03C1/22—Reciprocating-piston liquid engines with movable cylinders or cylinder
F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
F03C1/00—Reciprocating-piston liquid engines
F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
F03C1/03—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with movement in two directions being obtained by two single-acting piston liquid engines, each acting in one direction