Patent ID: 9677765
Date: 2017-06-13
CPC Classifications: F23D,F23L,F23N

Claim:
1. A mixer blower device for mixing air and a gas, the mixer blower device comprising: a. a mixer blower having a housing with an inlet and an outlet, b. a nozzle, which is fluidically connected and arranged on the housing such that the air can flow through the nozzle, the nozzle being designed to effect a negative pressure on the air flowing through the nozzle, and c. a mass flow sensor arranged in an effective region of the nozzle and designed to measure a mass of only the air flowing through the nozzle; wherein the nozzle has a supply element having a gas valve via which the gas is supplied by means of the negative pressure generated by the nozzle, a supplied quantity of the gas being controlled exclusively by the negative pressure of the air flowing through the nozzle, the supplied quantity of the gas being determined based on an opening position of the gas valve, and the opening position of the gas valve being pneumatically determined by the negative pressure of the air flowing through the nozzle; the mass flow sensor is electronically connected to a control system or a regulation system, the control system or the regulation system receives the mass for the air from the mass flow sensor as a value via an electronic signal line; the control system controls a speed of an impeller of the blower as a function of the value of the mass of the air flowing through the nozzle measured by the mass flow sensor, or the regulation system regulates the speed of the impeller of the blower as a function of the value of the mass of the air flowing through the nozzle measured by the mass flow sensor until the measured value corresponds to a set value stored in the regulation system; and the control system or the regulation system includes a storage device that stores a predefined characteristic curve, which determines the speed of the impeller of the blower as a function of a heating output required for a burner.