Patent ID: 9395080
Filing Date: 2016-07-19
CPC Classification: B01F,F23D,F23J,F23L,F23N,F24H

Claim Text:
1. A mixture supply system which is adapted for mounting in a hot water appliance and which is adapted to supply a combustible mixture to a burner of the hot water appliance, the mixture supply system comprising: a fuel feed for a fluid fuel; an oxidizer feed for a fluid oxidizer; a mixing chamber for mixing the fuel and the oxidizer in order to form the combustible mixture; a discharge for discharging the combustible mixture from the mixing chamber; and a fan for urging the fuel and oxidizer from the respective feed to the mixing chamber, and urging the mixture therefrom to the discharge; wherein: the fan is adapted to act directly on both the fuel and the oxidizer; the fan comprises a fan chamber provided with a blade wheel and a rotor, wherein the blade wheel is embodied as a double blade wheel adapted such that one side of the blade wheel substantially pumps the oxidizer and an opposing side of the blade wheel substantially pumps the fuel; the fuel feed and the oxidizer feed each debouch in the fan chamber; the mixing chamber is incorporated in the fan chamber and comprises two opposing walls located opposite each other and bounding the mixing chamber in axial direction; the mixture discharge is orthogonal to both the fuel feed and oxidizer feed and connects to the fan chamber; and the fuel feed and oxidizer feed have separate exits into the mixing chamber; and further wherein: the fan comprises a fan housing which bounds the fan chamber; and the fuel feed debouches from one of the opposing walls of the mixing chamber and the oxidizer feed debouches from a second of the opposing walls of the mixing chamber parallel to the rotational axis of the rotor.