Water Pump and Nozzle System Design
topic
Water-jet loom pumps generate the high-pressure water pulses at 20 to 40 bar required for weft insertion using plunger or diaphragm pumps driven by the loom crank, with each pump stroke timed to the pick cycle to deliver a precisely controlled water volume that forms the weft-carrying jet, and with nozzle design using convergent nozzle geometry to accelerate the water stream to 20 to 30 metres per second velocity at the nozzle exit where the yarn is entrained and carried into the shed.
Role
Generates the insertion medium and velocity required for reliable weft insertion in water-jet weaving, with pump and nozzle performance determining the insertion reliability, yarn tension during insertion, and water consumption per pick that together define the operational parameters of water-jet weaving and the maintenance requirements from the precision engineering of the pump and nozzle components that must maintain consistent performance across millions of insertion cycles.