Abstract:
A control system for a fuel-fired appliance and methods of operating are disclosed. When a failed ignition of a burner is detected, the control system is configured to enter a soft lockout state if the voltage level of a burner of the fuel-fired appliance is low during the failed ignition and a hard lockout state if the voltage level of the burner is not low during the failed ignition. In some cases, if a period of time has elapsed and/or the voltage level of the burner has increased after the control system enters the soft lockout state, the control system may be configured to initiate one or more subsequent ignition trials. In some cases, if the one or more subsequent ignition trials fail, the control system may be configured to then enter the hard lockout state.
Abstract:
A control system for a fuel-fired appliance and methods of operating are disclosed. When an electrical characteristic of a flame detector fails to cross a threshold level during an ignition attempt and when the electrical characteristic of the flame detector changes by a predetermined amount, the control system may activate an indicator indicating a problem with the flame detector (e.g. dirty, misaligned, or otherwise unable to properly detect the flame).
Abstract:
The invention is a connection duct between the blower and a mixing device of a burner. The connection duct expands wedge-shaped along a first direction and diverts air from the blower to a second direction. The connection duct further comprises diverting means for diverting the air in a circular flow around the second direction corresponding to a longitudinal axis of the mixing device. The diverting means comprise a tube section with at least one inflow opening arranged in the peripheral wall of the diverting means. A truncated cone comprising a tapering section is arranged in the tube section so that the tapering section faces in the direction of the mixing device. A passage cross-section of the inflow opening can be adjusted by a tube arranged in the peripheral wall which can be rotated around the tube's longitudinal axis and bears against the internal surface of the tube section.
Abstract:
A burner assembly including a housing having an air inlet and a burner end, a motor, and an impeller mounted in the housing. The impeller is in fluid communication with the air inlet, in mechanical communication with the motor, and adapted to direct air from the air inlet towards the burner end of the housing. The burner assembly also includes at least one pre-mix gas injection nozzle mounted in the housing. Each of the at least one pre-mix gas injection nozzle has at least one orifice adapted to direct gaseous fuel into the housing. The burner assembly further includes a spin vane comprising at least one spin vane blade. The spin vane is mounted in the burner end of the housing and adapted to direct the flow of air in the burner end. The burner assembly still further includes an igniter mounted in the burner end of the housing. The igniter is adapted to ignite the air and fuel mixture in the burner end of the housing to produce a main flame.
Abstract:
A combustion heater comprising an induction chamber provided with an inlet, a combustion chamber in fluid communication with the inlet of the induction chamber, means for moving an oxydizer from the inlet of the induction chamber to the combustion chamber, a fuel reservoir, a frame defining a fuel passageway, means for moving a fuel from the fuel reservoir through the fuel passageway to the combustion chamber, means in fluid communication with the fuel passageway for shearing a fuel prior to combustion, means in fluid communication with the fuel passageway for heating the fuel prior to combustion, and means for combusting a fuel oxydizer mixture within the combustion chamber.
Abstract:
A burner includes a motor driven blower, an air tube having an inlet end portion and an outlet end portion, a housing forming an air flow path between the blower and the air tube, a nozzle for spraying liquid fuel or orifice for dispersing gas toward the outlet end portion of the air tube and a conduit for feeding the fuel to the nozzle or orifice. An air flow control device and method enable air flow and pressure to be regulated at locations near the nozzle and between the blower and the nozzle. A contour of a throttle member of the burner is designed so as to achieve a prescribed pressure in a region between the throttle member and head of the burner over the range of the burner.
Abstract:
A burner includes a motor driven blower, an air tube having an inlet end portion and an outlet end portion, a housing forming an air flow path between the blower and the air tube, a nozzle for spraying liquid fuel or orifice for dispersing gas toward the outlet end portion of the air tube and a conduit for feeding the fuel to the nozzle or orifice. An air flow control device and method enable air flow and pressure to be regulated at locations near the nozzle and between the blower and the nozzle. A contour of a throttle member of the burner is designed so as to achieve a prescribed pressure in a region between the throttle member and head of the burner over the range of the burner.
Abstract:
An oil burner includes a pivotal cover that exposes a unitary gun assembly. The gun assembly is movable longitudinally with respect to the central axis of the air tube of the burner by rotating a cam. A spinner assembly is positioned on the gun assembly. The air cone is divided into various surfaces, some of which are at angles to the axis of the air tube. The burner further includes an adjustable air entry port. A work station for facilitating nozzle replacement is also included. The firing rate is controlled by the air entry port setting, the nozzle used, and the position of the nozzle and spinner assembly in the air cone.
Abstract:
There is disclosed a blower-type burner for use with heating boilers which is effective for reducing NO.sub.x pollutants produced by flue gases. The device is mountable about an opening in a closure or sealing panel of a furnace body and provides for containment of the flue gas path within the burner. A separated dual impeller system provides for complete separation of the flue gas path from a combustion intake system.
Abstract:
This invention relates to a flame retention burner apparatus and method of using same which can be mounted in various heat exchange apparatus and operable to efficiently and effectively achieve the diffusion and atomization of air and fuel particles for a high efficiency burning process. The flame retention burner apparatus includes a combustion head assembly having a (1) a main combustion chamber housing; (2) an inlet fuel and air diffuser assembly to initially cause agitation of fuel and air being admitted thereto; (3) a retention plate and cylinder assembly mounted within the inlet fuel and air diffuser assembly to achieve further agitation of the air particles; and (4) an air and fuel diffuser assembly operable to diffuse the inlet air particles in a new and novel manner and also to inject a liquid fuel when in that particular fuel type usage mode. The combination of the inlet fuel and air diffuser assembly, the retention plate and the cylinder assembly, and the air and fuel diffuser assembly operates to provide a new and novel movement of the air and fuel particles therein to achieve a highly efficient and effective burning process. The flame retention burner apparatus is readily used with multiple fuels and easily switched from a gaseous to a liquid fuel usage. The method of supplying the inlet air and fuel achieves a new and novel process of this invention.