Posted Image Posted Image The valve-operated reciprocating suction piston pump water-raising machine with a crankshaft-connecting rod mechanism invented by al-Jazari. In 1206, Al-Jazari described the first suction pipes, suction pump, double-action pump, reciprocating piston engine, and valve, when he invented a twin-cylinder reciprocating piston pump, which seems to have had a direct significance in the development of modern engineering. This pump is driven by a water wheel, which drives, through a system of gears, an oscillating slot-rod to which the rods of two pistons are attached. The pistons work in horizontally opposed cylinders, each provided with valve-operated suction and delivery pipes. The delivery pipes are joined above the centre of the machine to form a single outlet into the irrigation system. This pump is remarkable for three reasons:[11]

The first known use of a true suction pipe in a pump.
The first application of the double-acting principle.
The earliest con ...more