Patent ID: 8191867

Claim:
An arrangement for impregnating a mixture composed of a fluid and at least one gas comprising: a pump having a pump housing, a pump inlet fitting disposed on the pump housing for supplying to the pump housing the mixture which is composed of a fluid under a fluid pressure and the at least one gas under a gas pressure, and a mixer connected to the pump housing via the pump inlet fitting for mixing the fluid under fluid pressure with the at least one gas under gas pressure, wherein the gas pressure depends on the fluid pressure and the the pump boosts the pressure in the mixture, which comprises the fluid impregnated with the at least one gas, inside the pump housing to a pump pressure, a pump outlet fitting disposed on the pump housing and connected with a line for discharging the impregnated fluid under pump pressure towards a tap, and a constriction through which the mixture under pump pressure travels to the tap.