the class of components which are based on reciprocating motion,such as reciprocating pumps, compressors, expanders, engines
the diameter of the cylinder
the cross sectional area of the inside of the cylinder
the distance the piston moves in one direction
the number of strokes executed by the piston for every two revolutions of the crankshaft
(Forall (?Self ?Time) (<=> (Active ?Time Reciprocating-Component ?Self) (And (Reciprocating-Component ?Self) (Active ?Time Positive-Displacement-Component ?Self)))) (=> (Reciprocating-Component ?Self) (And (Quantity.Dimension (Stroke ?Self) Length-Dimension) (Quantity.Dimension (Bore-Area ?Self) Area-Dimension) (Quantity.Dimension (Bore ?Self) Length-Dimension) (Quantity.Dimension (Strokes-Per-Cycle ?Self) Dimensionless)))