A burner (10), particularly for vehicle heaters, includes a flexible panel (12) that separates an inner combustion region (14) from an outer region (16). A light-sensitive sensor for flame recognition is arranged in the outer region (16), and the flexible panel (12) includes at least one light opening (20) that allows the passage of light from the inner combustion region (14) into the outer region (16). The light opening (20) also allows the passage of combustion air from the outer region (16) into the inner combustion region (14).

A fluid mixing device that includes a housing having a fuel inlet and at least one primary orifice positioned at the inlet, wherein the at least one orifice configured to disperse a stream of fuel into a plurality of fuel droplets. The plurality of fuel droplets contact a fuel impingement surface to break up the plurality of fuel droplets into a plurality of smaller secondary droplets and create a thin film of secondary droplets on the impingement surface. At least one pressurized air channel delivers an airflow into contact with the secondary droplets. The secondary droplets pass through a plurality of secondary outlet orifices to exit the housing. A size of the plurality of secondary droplets is reduced when passing out of the plurality of secondary orifices.

A fluid mixing device that includes a housing having a fuel inlet and at least one primary orifice positioned at the inlet, wherein the at least one orifice configured to disperse a stream of fuel into a plurality of fuel droplets. The plurality of fuel droplets contact a fuel impingement surface to break up the plurality of fuel droplets into a plurality of smaller secondary droplets and create a thin film of secondary droplets on the impingement surface. At least one pressurized air channel delivers an airflow into contact with the secondary droplets. The secondary droplets pass through a plurality of secondary outlet orifices to exit the housing. A size of the plurality of secondary droplets is reduced when passing out of the plurality of secondary orifices.

A burner capable of burning crude or other heavy oil. A combustion chamber is surrounded by a wall of thermal insulation. An air-fuel injector pipe extends through the wall and opens into the combustion chamber. An oil supply pipe extends along the interior of the air fuel injector pipe to an inner open end that is proximate the inner end of the air-fuel injector pipe. A venturi insert is fixed within the air-fuel injector pipe and has an orifice positioned outward of the open inner end of the oil supply pipe. A combustion air supply including a blower and a recuperator transfers heat from outgoing combusted exhaust gases to incoming combustion-supporting air being blown through the recuperator and the air fuel injector pipe into the combustion chamber.

A miniature liquid combustor includes a double pre-heating structure. A method of operating the combustor comprises introducing liquid hydrocarbon fuel and air into a combustion chamber and stably combusting above a metal catalytic grid. The flames of the combustor first heating a third sleeve, the heated third sleeve gradually radiating the thermal energy to first and second fuel pre-heating chambers until the entire miniature liquid combustor is heated. The process continues to respectively implement second pre-heating of air introduced into the air pre-heating chambers and fuel introduced into the fuel pre-heating chambers before introducing them into the combustion chamber. The resulting combustor and combustion method enable double counter-flow pre-heating of air and fuel before being introduced into the combustion chamber, such that the air and the fuel are fully preheated before combustion.

A miniature liquid combustor includes a double pre-heating structure. A method of operating the combustor comprises introducing liquid hydrocarbon fuel and air into a combustion chamber and stably combusting above a metal catalytic grid. The flames of the combustor first heating a third sleeve, the heated third sleeve gradually radiating the thermal energy to first and second fuel pre-heating chambers until the entire miniature liquid combustor is heated. The process continues to respectively implement second pre-heating of air introduced into the air pre-heating chambers and fuel introduced into the fuel pre-heating chambers before introducing them into the combustion chamber. The resulting combustor and combustion method enable double counter-flow pre-heating of air and fuel before being introduced into the combustion chamber, such that the air and the fuel are fully preheated before combustion.

A gas turbine engine and a combustor are described herein. The combustor includes a fuel vaporizer coupled to a combustor wall, which extends into a combustion chamber. A fuel injector having a nozzle extends within a portion of the fuel vaporizer. A dome swirler is coupled to an upstream dome portion of the combustor wall. The swirler surrounds a heat shield, which may have a concaved body. The outlet end of the fuel vaporizer is disposed over the heat shield, which may be over the central zone of the heat shield, to face the heat shield. The fuel vaporizer may be coupled to the combustor wall and disposed outside the swirler. Fuel and air mixture exits the vaporizer and impinges against the heat shield and is then combined with the swirler air to become part of the primary zone recirculation.

A jet burner of the present disclosure basically includes a burner unit and an air blower disposed at a rear end of a burning chamber of the burner unit, wherein the burner unit is installed with a fuel bucket for storing fuel and the burning chamber having a tubular shape. Interior of the burning chamber is installed with a least one nozzle, at least one fuel pipe coupled to the fuel bucket is installed at each the nozzle, a front end of the burning chamber is installed with at least one jet pipe, and a pipe diameter of each the jet pipe is less than an inner diameter of the burning chamber. Under the reaction of the jet pipe, the burning stay time of the fuel in the interior of the burning chamber is increased, as to achieve the objective of increasing the fuel burning efficiency.

A booster burner of the present disclosure basically has a burning unit, an air blower disposed at a rear end of a burning chamber of the burning unit and a high-pressure gas providing unit; wherein the burning unit has a fuel bucket for storing fuel and a burning chamber having a tubular shape, interior of the burning chamber has at least one nozzle, at least one fuel tube coupled to the fuel bucket is disposed at each the nozzle; and the high-pressure gas supplying unit has a gas storage bucket for storing high-pressure gas, each the nozzle is installed with a high-pressure pipe coupled to the gas storage bucket. Through the high-pressure gas, the slight atomization and acceleration effect is applied to the fuel which enters the nozzle, such that fuel molecules are refined and more completely burned, and the objective of increasing the fuel burning efficiency is achieved.

A low NOx burner is configured to support a combustion reaction at a selected fuel mixture by anchoring a flame at a conductive flame anchor responsive to current flow between charges carried by the flame and the conductive flame anchor.