Method for regulating a gas mixture by using a gas sensor and a gas mixture sensor

US11287130B2 · kind B2 · utility

Assignee

• EBM PAPST LANDSHUT GmbH · DE

Inventors

• Hartmut Henrich · Osnabrück, DE
• Stephan Wald · Altenberge, DE
• Jens HERMANN · Osnabrück, DE

Key dates

• Filing date: Jan 17, 2020
• Grant date: Mar 29, 2022
• Expiry date: Jan 17, 2040

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F23N2239/04
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for regulating a gas mixture formed from a gas and a fuel gas in a fuel gas-operated heating appliance, wherein the gas mixture is created by providing and mixing a gas quantity by way of a first control element and a fuel gas quantity by way of a second control element, wherein a microthermal gas sensor and a gas mixture sensor are used and sensor signals are relayed to a controller, and wherein upon change in the detected sensor signal [of the] gas sensor the newly detected sensor signal of the gas sensor is compared to reference values which have been measured in the laboratory and saved in a table of values in the controller and from this a target value of the sensor signal of the gas mixture sensor is determined without a mixture ratio of the gas mixture composed of fuel gas and gas being changed.