Combustion apparatus having a combustion plate separating the mixing chamber from the combustion chamber, and a plurality of flow obstacles disposed above some of the flame holes of the combustion plate whereby a mixture of vaporized fuel and combustion air passed through the combustion plate is ignited, the collision of the mixture with the flow obstacles resulting in turbulent flow flame patterns. In addition, a wire net is disposed between the combustion plate and the flow obstacles for further dividing the gas mixture into fine segments, which in conjunction with the flow obstacles, results in stable combustion.
A kerosene gasifying and combusting apparatus includes a separable structure combined with a gasifying device and a combusting device. The gasifying device includes: a gasifying body with a spraying opening and a plurality of air vents in the middle, and a positioning trough defined by an internal side wall and an external side wall of the gasifying body; a resistance preheating pipe and an oil gasifying pipe superimposedly disposed in the trough and respectively to a kerosene supply source and power source; and an oil sprayer provided under the bottom of the gasifying body through a plurality of bracing struts and communicatively connected to the oil gasifying pipe. The combusting device having a combustor body combined with a reflection cover and a concentrating radiation cover is scarfingly coupled with the gasifying device so that effective gasification and combustion kerosene are acheived therewith.
A surface combustion type burner with air supply entirely as primary air has metallic netting defining a combustion surface, and is characterized in that in close supporting contact behind the metallic netting, substantially all over the entire rear surface of the metallic netting, there is disposed a punched or perforated metal base which has an open or void perforation ratio smaller than that of the metallic netting.
In a burner, a combustion cylinder made of a ceramic material is divided into an atomizing chamber and a combustion chamber by a partitioning plate having openings, a fuel injection port of an atomizing device is opened in the combustion chamber, the atomizing device emerging from a corner portion on the downstream side of the combustion cylinder and penetrating through the combustion chamber, an outer cylinder is so arranged as to form an annular air introducing path along the outer circumference of the combustion cylinder, and air introducing holes are formed in the combustion cylinder being tilted along the line of air stream. The outer cylinder is provided with an air intake pipe in the radial direction thereof. The tilting angle of the air introducing holes formed in the combustion cylinder gradually increases starting from a portion opposed to the air intake port formed in the outer cylinder and then gradually decreases as it goes to the side opposite to the air intake port. The atomizing device has a glow plug for atomization, which consists of a resistance wire buried in a silicon nitride member. Further, in the atomizing chamber is disposed another glow plug for ignition.
Disclosed is a gas turbine engine provided with an annular pre-mixing chamber and an annular combustion chamber adapted for burning a combustible mixture from the pre-mixing chamber. A plurality of circumferentially arranged injection nozzle sets are located between the pre-mixing chamber and the combustion chamber so that the combustible mixture from the pre-mixing chamber is ejected into the combustion chamber, to cause the mixture to be burnt therein. Each injection nozzle set is comprised of at least two nozzles which are inclined with respect to each other in such a manner that a violent contact of the flows of combustible mixture passed through the nozzles occurs at a location in the combustion chamber causing a turbulence of flow to be generated therein. Thus, rapid and stable combustion can be effected.
A gas burner is provided of the type distributing, through multiple nozzles (12), the flames (13) generated by the combustion of a pressurized fuel gas in air, comprising an air-fox (1) one wall (3) of which is perforated with a large number of closely spaced orifices (5), a gas feed-tank (7) connected to a pressurized fuel gas source and a plurality of hollow needles (11) each connecting the inside of the feed-tank (7) to the central zone of the inlet of an orifice (5) in the perforated wall (3) so as to define with this orifice one of the flame production sites (12). The air-box is connected to a pressurized air source, the orifices are cylindrical and a mechanical obstacle (16) is provided in the centre of the outlet of each orifice, for deflecting the gas jet leaving the needle and mixing it with the air stream which surrounds it.
