Patent ID: 7281467

Claim:
An apparatus for generating a pressurized hot water pulse and delivering it to a hot water utilization station comprising: an inlet for water, said inlet being adapted to be closed during the delivery of the pressurized hot water pulse; an outlet having a hot water intake port and a hot water conduit for directing the pressurized hot water pulse to the hot water utilization station; a pulse generator connected to said inlet and outlet, said pulse generator comprising a water heating chamber for receiving an amount of water via said inlet and for heating the water therein to produce sufficiently hot water for the hot water utilization station, a pressurization chamber for vaporizing water to generate pressurized steam to deliver under pressure said hot water in said heating chamber as the pressurized hot water pulse to the utilization station through said outlet, and a heating system for the heating and the vaporization of the water in said pulse generator, said heating chamber having a first end adapted to receive pressurized steam and a second end; wherein said pressurization chamber provides pressurized steam to said first end of said heating chamber; wherein said pulse generator is adapted to allow water to flow into said pressurization chamber from at least one of said water heating chamber and said inlet for the generation of the pressurized steam in said pressurization chamber by said heating system; wherein said pulse generator further comprises a partition for dividing said generator into said pressurization chamber and said water heating chamber; and wherein said pressurization chamber is formed between said partition and the side wall of said pulse generator, and comprises an opening for directing the pressurized steam to said first end of said water heating chamber, an evaporation chamber for said heating system to generate the pressurized steam and a chamber bottom.