摘要:
Apparatus includes a first and second conduits configured to form an annulus between them. An adjustable structure includes a body having an upper surface, a lower surface, and a circumferential surface abutting a portion of the internal surface of the second conduit. The structure is adjustable axially in relation to and removably attached to the first conduit via a hub. The hub defines a central passage for fuel or oxidant. The body has one or more non-central through passages configured such that flow of an oxidant or fuel therethrough causes the fuel or oxidant to intersect flow of fuel or oxidant exiting from the central passage in a region above the upper surface of the body.
摘要:
Apparatus includes a first and second conduits configured to form an annulus between them. An adjustable structure includes a body having an upper surface, a lower surface, and a circumferential surface abutting a portion of the internal surface of the second conduit. The structure is adjustable axially in relation to and removably attached to the first conduit via a hub. The hub defines a central passage for fuel or oxidant. The body has one or more non-central through passages configured such that flow of an oxidant or fuel therethrough causes the fuel or oxidant to intersect flow of fuel or oxidant exiting from the central passage in a region above the upper surface of the body.
摘要:
A fuel injector device for an annular combustion chamber including a pilot circuit feeding an injector and a multipoint circuit feeding injection orifices formed in a front face of an annular chamber, an annular ring being mounted in the annular chamber to define therein a fuel feed circuit for the injection orifices and a cooling circuit operating by passing the fuel feeding the injector and extending over the front face of the chamber in immediate vicinity of the injection orifices.
摘要:
A combustor generally includes a shroud that that defines at least one inlet passage extends circumferentially inside the combustor. A first plate extends radially inside the shroud downstream from the inlet passage. The first plate defines at least one inlet port, at least one outlet port and at least partially defines at least one fuel nozzle passage. The shroud at least partially surrounds a sleeve that extends around the fuel nozzle passage. A tube at least partially surrounded by the sleeve may extend through the fuel nozzle passage. The tube, the sleeve, and the first plate may at least partially define an outlet passage. A first fluid flow path generally extends from the at inlet passage to the inlet port, and a second fluid flow path extends generally from the outlet port to the outlet passage.
摘要:
A combustion device in the form of a paraffin stove (10) comprises a fuel reservoir (12), a burner (14), stand pipe (16) which extends between the reservoir (12) and the burner (14) and a stove top (18). The reservoir (12) comprises a rigid, air-tight outer container (22) and a deformable bladder (25) for holding paraffin (27) which is located within the container (22). The bladder has an outlet (44) which is connected to the stand pipe (16). A conduit (51) which can be connected to a source of compressed air is connected to the container (22) for pressurizing the container (22) to exert a force on the bladder (25) sufficient to cause the paraffin to be delivered to the burner (14) where it is ignited to produce a flame.
摘要:
A fuel injector for a gas turbine engine is disclosed that includes an injector body having a bore, a fitting at an inlet end of the injector body for receiving fuel, an atomizer at an outlet end of the injector body for delivering atomized fuel to a combustor of the gas turbine engine, a fuel tube disposed within the bore of the injector body for delivering fuel from the fitting to the atomizer, the fuel tube having an inlet end portion adjacent the fitting and an outlet end portion joined to the atomizer, and structure joined to the inlet end portion of the fuel tube to compensate for thermal growth of the injector body relative to the fuel tube during engine operation.
摘要:
A burner element is provided. The burner element includes a surface that potentially comes into contact with a fuel. The surface potentially coming into contact with the fuel has a coating including aluminum oxide. A burner including the burner element is also provided. Further, a method for coating a surface of a burner element potentially coming into contact with a fuel is described, wherein the surface potentially coming into contact with the fuel is coated with aluminum oxide.
摘要:
A fuel nozzle is provided. The fuel nozzle includes a heat shield, a fuel tube and a plurality of support members. The support members are radially interposed between the heat shield and the fuel tube. The support members are preferably cylindrical tubes, thus creating voids or pockets between the heat shield and the fuel tube. The cylindrical tubes are connected to one another at a first end are free at an opposed end. As such, the tubes can move or slide relative to one another. Further, the tubes preferably only contact one another with at most line contacts. The fuel nozzle may also include a tip portion that includes a tip heat shield that extends radially outward from the primary heat shield. The tip heat shield defines a cavity that connects with the central cavity of the heat shield. The fuel tube extends through the tip heat shield.
摘要:
Multipoint injector for a turbomachine according to which any risk of fuel coking is eliminated.According to the invention, the multipoint fuel which is liable to stagnate inside the circuit thereof is cooled uniformly, due to the formation of continuous baffles which each communicate with at least one separate circulation channel and of which the peripheral baffles open out into a fuel admission chamber arranged in a zone diametrically opposing the circulation channels and which communicates with the injection nozzle for pilot fuel in order to achieve uniform supply and cooling of the injector.
摘要:
The present invention is directed at systems and methods for detecting flue blockages in an HVAC system without the addition of numerous additional sensor elements, wiring, and connections that can unduly increase the cost and possibly reduce the reliability of the HVAC system. In an illustrative embodiment of the present invention, changes in the output of a flame sensor are used to detect when a likely flue blockage exists.