A combustion system such as a furnace or boiler includes a non-planar perforated flame holder configured to hold a combustion reaction.

An object of the present disclosure is to provide a pre-mixed burner capable of preventing a backfire, improving flame stability, and responding to various combustion loads. To attain the object, the present disclosure is implemented by including a flame hole member made of a foam body which is made from a plurality of metal alloys through a sintering process and in which an air hole being a space between struts configuring a framework is formed, and configured to form a flame by allowing a mixed gas of gas and air to be sprayed through the air hole, a flame hole member fixing plate configured to fixedly couple the flame hole member to a burner main body, and a distributing plate provided in front of the flame hole member and at which a plurality of distributing holes are formed so as to uniformly supply the mixed gas to the flame hole member.

A gas burner for a cooking appliance includes a body defining perimeter and having a plurality of first groups of respective pluralities of first outlets a plurality of second groups of respective pluralities of second outlets. Each of the first outlets respectively defines a first outlet area, and each of the second outlets defines respective reduced outlet areas that are less than the first outlet area. Further, the first groups and second groups are alternately arranged around the perimeter, and a total number of first outlets is greater than a total number of second outlets.

A combustion system such as a furnace or boiler includes a non-planar perforated flame holder configured to hold a combustion reaction.

A premixed gas heating system comprises: a fan assembly (2) configured to supply a premixed air-gas flow required for combustion, wherein a combustible gas of the premixed air-gas flow contains at least 20% by volume of hydrogen; a burner (5) comprising a plurality of holes, wherein the plurality of holes provides a free passage area defined as an area that allows the outflow of the premixed air-gas flow from an area upstream of the burner (5) to an area where flames of combustion are generated; a load controller, configured to regulate an output load of the burner (5) such that the heating system modulates between a minimum load and a maximum load, wherein a ratio between the minimum load and the maximum load is at least 4, wherein the minimum load of the heating system is set such that a combustion index, defined as the ratio between the minimum load and the free passage area of the burner, is between 4 E06 and 6 E07.

The present invention discloses a vortex pressurized burner. The vortex pressurized burner adopts a gradually reduced volute flow passage to make a pressure difference of a volute flow passage from a gas passage head end to a gas passage tail end smaller, so that the jetted gas is more uniform, increasing the uniformity of circumferential combustion of flames.

A gas burner having a combustion chamber with a bottom and a circumferential wall. A plurality of fuel exit ports are disposed in the circumferential wall, and are directed generally inwardly toward the combustion chamber and upwardly from the bottom of the combustion chamber. The fuel exit ports are preferably directed inwardly at an angle that is slightly rotated from a central axis of the burner to create a swirling flame. A plurality of secondary air inlets extend through the bottom of the combustion chamber. An injector orifice is aligned with the central axis of the burner. The injector orifice is secured to the cooktop using a bracket, which has an orifice-securing surface, with two sidewalls extending therefrom and terminating in fastening flanges. The fastening flanges have asymmetrically arranged slots therein to receive tabs extending from the burner to ensure proper alignment of the burner and the injector orifice.

A fuel-burning cooking burner includes a base defining an outer periphery and an inner open area. The burner further includes a cap coupled with the base around the outer periphery thereof and extending over the open area to define a distribution cavity on an interior side of the cap. The cap further defines a convex outer surface extending opposite the distribution cavity and a plurality of outlets extending through the cap from the distribution cavity to the exterior surface. The outlets are distributed over the entire exterior surface.

A gas burner for low NO.sub.x gas furnaces is disclosed with improved flame carryover for igniting one or more adjacent burners. The burner includes a burner tube that receives a mixture of fuel and air. The burner tube is coupled to an outlet. The outlet includes a primary outlet opening which is in communication with at least one transverse slot for communicating a flame to at least one adjacent burner. The primary outlet opening may be elliptical and the outlet further may also include a concave outer face through which the primary outlet opening extends. The at least one slot may include a pair of oppositely directed transverse slots extending outward from the primary outlet opening along a semi-minor axis of the primary outlet opening.

A thermo-photovoltaic system including an infrared radiation emitter including a body including a first external surface and a second external surface, the first and second external surfaces being distinct, the first external surface facing a concentrator for receiving a concentrated solar radiation, the second external surface facing a thermo-photovoltaic cell, and the body further including at least one gas and/or liquid combustion chamber therein, and an igniter is provided for causing combustion in the combustion chamber.