Honeywell International Inc.

Honeywell Technologies Sarl

Willem Super

Hans M Van Der Mei

Jos Praat

Gregory Young

Donald J Kasprzyk

David Kucera

Roelof Thiewes

Brian Zabel

John D Mitchell

Frank Van Prooijen

Peter Vermass

Martin Bragg

Milos Trenz

Sybrandus Munsterhuis

A burner control system for improving burner performance and efficiency may determine fuel and air channel or manifold parameters. Determination of parameters may be performed with a sensor connected across the air and fuel channels. A signal from the sensor may control the parameters which in turn affect the amounts of fuel and air to the burner via a controller. Parameter control of the fuel and air in their respective channels may result in more accurate fuel and air ratio control. One or more flow restrictors in fuel and/or air bypass channels may further improve accuracy of the fuel and air ratio. The channels may be interconnected with a pressure or flow divider. Byproducts of combustion in the exhaust, temperatures of gas and air, flame quality and/or other items may be monitored and adjusted with control of the fuel and air ratio for optimum combustion in the burner.

Burner control system

A system for controlling activity in a combustion chamber. The system does not necessarily need to be mechanically adjusted and yet may provide precise control of a fuel air mixture ratio. A sensing module of the system may have a mass flow sensor that relates to air flow and another sensor that relates to fuel flow. Neither sensor may need contact with fuel. Fuel and air to the system may be controlled. Pressure of the fuel and/or air may be regulated. The sensors may provide signals to a processor to indicate a state of the fuel and air in the system. The processor, with reliance on a programmed curve, table or the like, often based on data, in a storage memory, may regulate the flow or pressure of the fuel and air in a parallel fashion to provide an appropriate fuel-air mixture to the combustion chamber.

System and approach for controlling a combustion chamber

Methods and systems for mitigating condensation in a sensor module of a combustion appliance are disclosed. In one example, a fluid flow from a main conduit is cooled with a passive heat exchanger. A sensor of a sensor module may be heated to a temperature above the cooled fluid flow. Cooling the incoming fluid flow with a passive heat exchanger and/or heating the downstream flow sensor may help mitigate condensation in the sensor module, and in particular, on the sensor device. This may help increase the reliability of the system.

System and methods for mitigating condensation in a sensor module

Methods and systems for controlling a gas valve assembly and/or combustion appliance may include identifying a flow rate of gas to a burner of a combustion appliance and determining if the flow rate is sufficient for a burner load of the combustion appliance. If the flow rate is sufficient for a burner load, a position of the valve member of the valve assembly and/or the burner load may be adjusted such that the flow rate of gas meets a target flow rate of gas for the current burner load. If the flow rate is insufficient to meet the current burner load, the valve member of the valve assembly may be positioned in a fully open position to at least partially meet the current burner load. If the flow rate is below a minimum flow rate threshold, the valve member may be moved to a fully closed position.

Systems and methods for valve and/or combustion applicance control

A regulating device may include a housing that defines an inlet chamber and an outlet chamber, with a flow restriction seat between the inlet chamber and the outlet chamber. A flow restriction valve is movable relative to the flow restriction seat to adjust the flow between the inlet chamber and the outlet chamber of the regulating device. A servo valve having a servo chamber may be used to adjust the position of the flow restriction valve. The servo chamber may be fluidly coupled to the inlet chamber though a fixed flow restriction and to the outlet chamber though an adjustable flow restriction. A stepper motor may be used to adjust the servo valve to adjust the adjustable flow restriction between the servo chamber and the outlet chamber. This causes a change of the servo pressure, which moves the flow restriction valve and adjusts the flow of the regulating device.

Regulating device

Servo gas system () for a gas burner (), namely for controlling a pressure regulation valve () positioned in a gas duct () of the gas burner, thereby controlling a gas pressure within the gas duct () being present downstream of the pressure regulation valve () and thereby controlling a pressure difference between a pressure in a burner chamber () of the gas burner and said gas pressure within the gas duct (), the servo gas system () comprising a static servo gas flow branch () and a dynamic servo gas flow branch () being connected in parallel, and a flow sensing element () being connected between the static servo gas flow branch () and the dynamic servo gas flow branch () and providing a signal used to control the pressure regulation valve () by an electric actuator ().

Servo gas system, gas burner and method for operating the gas burner

A burner control system for improving burner performance and efficiency. The system may determine fuel and air channel or manifold parameters. Determination of parameters may be performed with a sensor connected across the air and fuel channels. A signal from the sensor may control the parameters which in turn affect the amounts of fuel and air to the burner via a controller. Parameter control of the fuel and air in their respective channels may result in more accurate fuel and air ratio control. One or more flow restrictors in fuel and/or air bypass channels may further improve accuracy of the fuel and air ratio. The channels may be interconnected with a pressure or flow divider. Byproducts of combustion in the exhaust, temperatures of gas and air, flame quality and/or other items may be monitored and adjusted with control of the fuel and air ratio for optimum combustion in the burner.

A mixing device () for a gas burner, with a housing () having a combustion air inlet (), a gas inlet () and an outlet () for the mixture of gas and combustion air, and with a Venturi device () which is positioned in the housing, wherein the Venturi device is contoured to form a contraction section (), a mixing section () and a diffuser section (). A guide device () for combustion air, which divides combustion air which enters the mixing device via the combustion air inlet () into a primary flow and a secondary flow, may be positioned inside the Venturi device, wherein the combustion air of the primary flow, issuing from the combustion air inlet, can be fed to the mixing section () via the contraction section (), and wherein the combustion air of the secondary flow, issuing from the combustion air inlet, can be mixed downstream of the mixing section () in the region of the diffuser section () with the mixture of the gas and the combustion air of the primary flow.

Growing community of inventors

Emmen, Netherlands

Willem Super