Patent ID: 7843548
Filing Date: 2010-11-30
Classification: B01F,G03F,Y10T

Abstract:
1. A conduit system for a lithographic apparatus, the conduit system comprising: a conduit part configured to guide a liquid or liquid-gas mixture; and a gas injection nozzle configured to introduce a gas in the liquid or liquid-gas mixture to at least partially absorb pressure peaks or waves in the liquid or liquid-gas mixture, wherein the gas injection nozzle is at least partially guided through or along a conduit or fitting connected to an outlet or inlet of a pump configured to pump the liquid or liquid-gas mixture of the conduit system, wherein a discharge of the gas injection nozzle ends in or close by the pump outlet or the pump inlet and wherein the gas injection nozzle is ring-shaped or mainly ring-shaped and arranged about the perimeter of the pump fitting or conduit.