Abstract: An exhaust treatment system may include a burner, a flame sensor assembly and a control module. The flame sensor assembly may be at least partially disposed within the burner and may include an insulator and an electric heating element in heat transfer relation with the insulator. The control module may be in communication with the flame sensor assembly. The control module may determine whether a flame is present in a combustion chamber based on feedback from the flame sensor assembly. The control module may detect contamination on the insulator based on feedback from the flame sensor assembly. The control module may operate the heating element in a first mode in response to detection of a contamination in which the control module causes electrical power to be applied to the heating element to raise a temperature of the heating element to burn contamination off of the insulator.

Abstract: A gas igniter includes a heating element, a bushing and a mounting bracket. The bushing is formed of a generally rigid electrically insulating material and supports the heating element. The bushing includes an elongated slot extending through the bushing. The mounting bracket includes a first connecting portion and a second mounting portion. The first connecting portion is inserted through the elongated slot located on the bushing for connecting the mounting bracket to the bushing. The second mounting portion is configured to attach the gas igniter to an associated support surface.

Abstract: A burner for an exhaust gas treatment system treats an exhaust flow from an engine and includes an inner housing defining a primary combustion zone and a secondary combustion zone. The inner housing includes a plurality of apertures upstream of the secondary combustion zone for receipt of a first portion of the exhaust flow. An outer housing surrounds the inner housing to define a bypass flow path between the inner and outer housings to bypass a second portion of the exhaust flow around the inner housing outside of the primary and secondary combustion zones. The outer housing includes an exhaust inlet coaxially aligned with an exhaust outlet along a central longitudinal axis. A mixing zone is provided downstream of the second combustion chamber in receipt of the first and second portions of the exhaust flow.

Abstract: An evaporator assembly unit, especially for a vehicle heater, includes an evaporator medium carrier (12) with a bottom wall (14), a porous evaporator medium (18) provided on one side of the bottom wall (14) and an electrically excitable ignition element (34). The ignition element is embedded in the material of which the bottom wall (14) is made.

Abstract: An improved ignitor plug for igniting fuel in a combustion chamber and a smart fuel supply system for ignitor plug applications.

Abstract: An ignition unit promotes the efficiency of assembly because connections on the high voltage output side and the ground side are completed by a single operation, when an ignition electrode part and a main unit are connected together directly. A guide rail of the main unit is insertion-engaged into a slit between clamp pieces of a bracket so that the main unit is mounted onto the bracket. With the insertion engagement, a high voltage output terminal receives therein a high voltage input terminal of a spark plug supported by the bracket, a plate terminal which is a part of the bracket is driven into a ground-side connection terminal, and a convex portion of a projected piece is engaged into an engagement hole, for positioning and slipping-off prevention.

Abstract: An electric gas lighter for generating sparks at one or more burners of a cooking range, and including a transformer having a primary winding, and a secondary winding divided into a number of coils, each having output terminals, and which are wound on respective axially adjacent portions of a substantially cylindrically symmetrical drum forming part of a supporting member made of insulating material and formed in one piece with supports projecting tangentially with respect to the drum and each supporting a respective terminal defined by a blade contact; the coils are connected electrically to one another in series to form one secondary winding, which has been obtained by winding continuously, i.e. without making cuts, an insulated electrically conducting wire onto the drum to form the coils; the wire being wound alternately onto the drum in an opposite direction for each coil; and the winding direction being inverted upon the wire engaging each terminal located axially between two adjacent coils.

Abstract: A heater in which, during the glow plug ramp time interval, the amount of energy supplied per unit of time to the glow plug/flame monitor can be successively changed, and a control unit which is operationally coupled to the glow plug/flame monitor. To enable continuous flame monitoring during the starting phase of the heater with the control unit, the resistance value of the glow plug/flame monitor is determined during the glow plug ramp time interval and compared to a threshold value RGS, and when the threshold value RGS is not reached, a flame-out signal is generated.

Abstract: A compact torch for use in semiconductor processing which may be used both to produce steam and to perform wet or dry dichlorethylene (DCE) oxidation at varying concentrations with no reconfiguration of the torch, providing full temperature of control of the oxidation product gases, with redundancy to provide automatic backup of heating and ignition elements, and with non-mechanical flow control of the oxidation product gases.

Abstract: A boiler for generating vapor at low pressure from liquid in reservoirs that are not pressurized is provided. Liquid from a reservoir is fed through a supply wick by capillary action to a boiler wick in which the liquid is heated and boiled to a vapor. The heat for vaporization is transmitted by a porous hot seat which sits atop and is in contact with the boiler wick. The boiler wick and hot seat are contained within an insulating cylindrical shroud, which forms a tight seal with the edges of the boiler wick. If the liquid to be vaporized is a fuel for a burner, then combustion heat can be used to supply the heat to the boiler. A resistive heat source can also be used to heat the hot seat and boiler wick.

Abstract: A combustion heater system for use in a moter vehicle has a combustion chamber housing a combustion pad which is heated by a pre-glow plug for vaporizing a fuel that is supplied from a fuel tank through a solenoid-operated valve to the combustion pad. The combustion chamber is supplied with air from a fan, and houses a spark plug for producing sparks in the combustion chamber to ignite a fuel vapor emitted from the combustion pad. The combustion heater system has a control unit which energizes the pre-glow plug to heat the combustion pad, actuates the solenoid-operated valve to supply the fuel to the combustion pad, and actuates the fan to supply air to the combustion chamber. The control unit subsequently energizes the spark plug to produce sparks upon elapse of a preset period of time hereby to ignite the fuel vapor emitted from the combustion pad for producing flames in the combustion chamber.

Abstract: A pulse combustor ignitor comprising a small combustion chamber located external to the pulse combustion chamber. A spark ignition source such as a spark plug is associated with the chamber and separate inlets for fuel and air are provided. The fuel/air mixture is ignited by the spark plug and the ignited mixture is directed into the combustion chamber of the pulse combustor until a steady state operation of the pulse combustor is achieved. An air preheater may be used for the air delivered to the ignitor combustion chamber. The flow pattern of the fuel/air mixture and the flame may be controlled by an adjustable passage element located between the respective ignitor and pulse combustor combustion chambers. A flame scanner positioned external to the pulse combustor may be used to sense the entrance of the ignited mixture from the ignitor into the pulse combustor.

Abstract: The heater includes a jacket unit connectable to the cooling system of an internal combustion engine, the jacket unit forming a central cavity in which a catalytic burner unit is suspended by means of a bolt that extends upwardly through an upper opening in the jacket unit. Overlying the jacket unit is a perforated dome-shaped cap having a hole through which the bolt extends so that a nut applied to the upper end of the bolt clamps the perforated cap against the upper end of the jacket unit, at the same time suspending the burner unit within the jacket unit's cavity. Within the cavity is a fixedly positioned ring through which the bolt extends, the bolt having a collar that abutts the underside of the ring when the nut is fully tightened. The catalytic burner unit also includes a feed tube extending downwardly therefrom. A second perforated dome-shaped cap underlies the jacket unit having a hole through which the feed tube extends. A sleeve of catalytic material is included in the burner unit.

Abstract: A device for controlling fuel combustion in a burner detects the temperature in the burner and controls, based on the detected temperature, electric power supplied to an atmozing glow plug of a fuel atomizer which heats and atomizes fuel.

Abstract: A controller for a heater has two switch circuits for controlling the supply of electric power to an atomizing glow plug for atomizing fuel and an ignition glow plug for igniting atomized fuel, the glow plugs being connected parallel to each other. One of the switch circuits includes a series-connected resistor for producing a voltage drop thereacross. During an inital period of operation of the heater, the first switch circuit free of the series-connected resistor is turned on to heat the glow plugs quickly up to respective prescribed temperatures for atomizing and igniting the fuel. Upon elapse of a predetermined period of time, during which the prescribed temperatures are reached, the first switch circuit is turned off and the second switch circuit with the series-connected resistor is turned on to keep the glow plugs at the prescribed temperatures without further heating them.

Abstract: In an ignition device, a preheater in the wall of a carburetor is connectable to an ignition heater in series and the heaters are controlled by the switching operation of relay contacts. Both heaters are connectable in series during the ignition operation to limit current flowing to the ignition heater.

Abstract: A multilamp photoflash array and fabrication process is provided wherein electrically conductive leads of a plurality of flashlamps are embedded in and wrapped about the ends of a plastic reflector unit which is, in turn, affixed to a circuit board to provide contact between the bent leads and a printed circuit on the circuit board.

Abstract: The system comprises a burner-housing in which to ignite volatile fluids, together with means for admitting such fluids thereinto and means for discharging the combustion product therefrom. A coolant-carrying shell is enclosed within the burner-housing, the same having spray holes for discharging coolant onto the burner-housing inner surface, and for discharging coolant into a burner-housing defined combustion chamber. A distributor carried by the shell admits discrete fluids into the housing, and also has coolant passages formed therein. Additionally, the distributor has a fluid-heating arrangement disposed therewithin, as well as a fluid-ignition arrangement, the latter being selectively operative -- to insure ignition of the housing-admitted volatile fluids. The combustion products are either simply vented from the burner-housing, for use thus, or are conducted through a terminal rocket nozzle for generating thrust.