Fuel Conduit Within Flame Or Combustion Products Zone Patents (Class 431/247)
  • Patent number: 4915615
    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.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: April 10, 1990
    Assignee: Isuzu Motors Limited
    Inventors: Hideo Kawamura, Keiichi Yamashita
  • Patent number: 4850857
    Abstract: An appliance for the combustion of oxidizable substances in a carrier gas is described, in which the carrier gas is fed through heat exchanger tubes having inlet ends which are bent outwardly adjacent an outlet for gas from which oxidizable substances have been removed by combustion. Prior to entering the tubes the carrier gas passes an annular chamber in which it becomes pre-heated and condensates are evaporated.
    Type: Grant
    Filed: December 2, 1986
    Date of Patent: July 25, 1989
    Assignee: Katec Betz GmbH & Co.
    Inventor: Herbert J. Obermuller
  • Patent number: 4792300
    Abstract: 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.
    Type: Grant
    Filed: July 24, 1987
    Date of Patent: December 20, 1988
    Assignee: Izuzu Motors Limited
    Inventor: Hideo Kawamura
  • Patent number: 4529375
    Abstract: A fuel gasifying burner including a combustion device located below a portion of a gas generating member housing a fuel supply device for directing a supply of liquid fuel into the interior of the gas generating member. A plurality of combustion members formed with flame apertures at their surfaces are arranged on either side of the gas generating member substantially in the same horizontal plane or in a plane below that of the gas generating member and maintained in communication with the gas generating member. The combustion members may be one in number and annular in form and located below the gas generating member or of a torus shape to allow the gas generating member to extend through its center opening.
    Type: Grant
    Filed: June 18, 1984
    Date of Patent: July 16, 1985
    Assignee: Dowa Co., Ltd.
    Inventor: Kingo Miyahara
  • Patent number: 4521181
    Abstract: A fuel fume generator kit with a fuel tank having a fuel entry chamber and a vacuum chamber separated by a baffle, said baffle having apertures defined at the bottom thereof to allow the fuel to pass from the entry chamber to the vacuum chamber; means to heat the fuel in said tank; means to provide vacuum to the vacuum chamber to cause the fuel therein to create fumes; means to carry the fuel fumes to pressure means to be then pressurized in a line extending to the device in which the vaporized fuel is to be burned having on the pressure line a reserve tank to build up and contain a pressure therein to help maintain a constant pressure at the device where the fuel is to be burned; and a pressure switch controlling the pressure in the pressure line interconnected to the pressure means with a pressure relief valve operated at a set pressure level on the pressure line near the device to be operated.
    Type: Grant
    Filed: April 26, 1984
    Date of Patent: June 4, 1985
    Inventor: Richard A. Delage
  • Patent number: 4373905
    Abstract: Oil heater for burning of waste oil or other like petroleum liquids through vaporization of the fuel resulting in total fuel burn and maximum BTU. Combustion air enters the center of a combustion chamber enclosure through a combustion air wand resulting in air flow in all directions. The wand includes a plurality of spaced holes in a closed annular air channel allowing for escape of air to the combustion chamber and a diffuser plate circumferentially affixed to the wand including a plurality of spaced holes in the diffuser plate for spreading and mixing resultant vapors and gases for burning at the level of the wand. A submerged pump in a fuel storage tank provides for even fuel flow to a center point above the air wand in addition to even air flow by a blower. A vaporizer pan in the bottom of the chamber provides for boiling of the fuel with its resulting vaporization and total burn of residue and ash.
    Type: Grant
    Filed: August 4, 1980
    Date of Patent: February 15, 1983
    Inventor: Allen J. Hettich
  • Patent number: 4365951
    Abstract: A combustion device of the type in which fuel is supplied in liquid phase through a "walking-stick" is improved by imparting a rotary movement to the air passing the "walking-stick". The fuel will form a film which is volatired and mixed so thoroughly with air that the temperature at the end of the "walking-stick" may be used as an indication of the prevailing proportion between the mass flows of supplied air and fuel.
    Type: Grant
    Filed: June 13, 1980
    Date of Patent: December 28, 1982
    Inventor: Jan Alpkvist
  • Patent number: 4364724
    Abstract: A method and an apparatus for dosing the air-fuel mixture in burners of the type which is formed with an evaporator tube (9) through which fuel and some amount of combustion air is introduced in the combustion chamber (1) and in said combustion chamber is mixed with further combustion air and is inflamed. The optimum amount of combustion air is determined for different amounts of fuel and for different reference temperatures in a predetermined point of the evaporator tube (9) adjacent the mouth (10) thereof in the combustion chamber (1), and the temperature of the air-fuel mixture is measured by means of a thermo element (41) in the said point of the evaporator tube (9).
    Type: Grant
    Filed: February 2, 1980
    Date of Patent: December 21, 1982
    Assignee: Forenade Farbiksverken
    Inventor: Jan A. Alpkvist
  • Patent number: 4332547
    Abstract: A combustion device for use with pressurized and zero pressure hot air balloons or other hot air appliances, which comprises in general, a coanda-type inlet nozzle, a diffuser, a flame-arrestor screen, and a fuel preheater means for supplying required fuel vapor at a desired pressure to the inlet nozzle. The combustion device may be used with any suitable fuel, but it is primarily applicable to propane. The combustion device is a fuel pressure driven-nozzle-mixer-diffuser-arrestor screen burner combustion device which generates a stream of heated air for the transfer of thermal energy to a load.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: June 1, 1982
    Inventor: James D. MacDonald, Jr.
  • Patent number: 4262482
    Abstract: This invention relates to improvements in the art of liquid fuel combustion and, more particularly, concerns a method and apparatus for the controlled gassification of liquid fuels, the thorough premixing of the then gassified fuel with air and the subsequent gas-phase combustion of the mixture to produce a flame substantially free of soot, carbon monoxide, nitric oxide and unburned fuel.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: April 21, 1981
    Inventors: Gerald A. Roffe, Horacio A. Trucco
  • Patent number: 4255116
    Abstract: A burner body defines a combustion zone and a secondary dilution zone. A first inlet opening leads to the combustion zone to admit fuel and air while a second inlet opening leads to the secondary dilution zone. The burner body contains a tertiary dilution zone connected to a third inlet opening. The secondary dilution zone is positioned downstream from the combustion zone and the tertiary dilution zone is positioned downstream from the secondary dilution zone.The flow areas of the first inlet opening and the second inlet opening is arranged to have a constant ratio. An air passage supplies air to the first, second and third inlet openings and a flow controller is positioned to control the air flow through the third inlet opening. When the flow controller is closed, air flows from the passage through the first and second inlet openings, while, when the flow controller is open, air flows from the passage through the first, second and third inlet openings.
    Type: Grant
    Filed: September 22, 1975
    Date of Patent: March 10, 1981
    Inventor: Eugene B. Zwick
  • Patent number: 4231731
    Abstract: An automatic self-regulating burner system. A serpentine pipe structure connected to a source of fuel has a preheating portion, an orifice pipe portion and a backpressure pipe portion. The orifice pipe portion has an orifice therethrough which exhausts vaporized fuel. The exhausted fuel vapor is burned to heat both the preheater pipe portion for vaporizing and preheating the fuel, and the backpressure pipe portion for generating an internal pressure which automatically regulates the quantity of fuel vapors which are exhausted from the orifice.
    Type: Grant
    Filed: April 28, 1978
    Date of Patent: November 4, 1980
    Inventor: Joseph Sharp
  • Patent number: 4192457
    Abstract: A heater apparatus adapted to be used as an auxiliary unit to the main heater system of a vehicle jointly heats the vehicle engine to operating temperature and heats the fuel line while the engine is inactive. The heater apparatus includes improvements for reducing heat dissipation, providing easy accessibility to the burner assembly, and for automatic ignition of the heating element. In addition, the heater operates directly from the vehicle fuel supply thereby eliminating the need for carrying any auxiliary fuel supply for the heater.
    Type: Grant
    Filed: August 30, 1978
    Date of Patent: March 11, 1980
    Inventor: Herbert D. Easterly
  • Patent number: 4089638
    Abstract: This invention relates to improvements in the art of liquid fuel combustion and, more particularly, concerns a method and apparatus for the controlled gassification of liquid fuels, the thorough premixing of the then gassified fuel with air and the subsequent gas-phase combustion of the mixture to produce a flame substantially free of soot, carbon monoxide, nitric oxide and unburned fuel.
    Type: Grant
    Filed: July 29, 1976
    Date of Patent: May 16, 1978
    Inventors: Horacio A. Trucco, Gerald A. Roffe
  • Patent number: 4088437
    Abstract: A combustion chamber with an evaporator that projects into the combustion zone of the flame tube and includes a coaxial channel and to which air and fuel are supplied separately; a deflection surface is thereby arranged at the end of the evaporator channel which deflects the fuel/air mixture on all sides essentially opposite to the main flow direction prevailing in the channel; an annular channel partly surrounding the evaporator channel adjoins the deflection surface which is in communication by way of discharge openings with a mixing zone disposed upstream of the combustion zone, as viewed in the main flow direction; the mixing zone is formed by an annular space between an outer wall of the evaporator and an intermediate wall of the flame tube, in which are arranged radial webs within a first and a second plane, whereby the discharge openings of the annular channel terminate between the radial webs.
    Type: Grant
    Filed: September 8, 1976
    Date of Patent: May 9, 1978
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventor: Immanuel Holzapfel
  • Patent number: 4078540
    Abstract: This invention relates to a kerosene vapor stove with an automatic fuel feeding system. There are two ways of vaporizing the kerosene. When the stove is about to be lighted, kerosene is channelled into a preliminary preheating tube to be heated up to a high temperature within a short time. The heated kerosene under pressure passes through a nozzle and shoots through an air gap into a mixing tube, vaporizing in the process. The mixture of the kerosene vapor and air is delivered into a burner where it burns. After the stove has been lighted for about two minutes, the loop of tube above the burner will be well heated. This tube is a part of the normal path for kerosene. Kerosene is now channelled through this tube for preheating, utilizing the heat produced by the burner to effect vaporization. The automatic feeding of the kerosene is accomplished through using a steel container containing kerosene up to 80% of its volume. A tube extends from the outlet valve of the container down to its bottom.
    Type: Grant
    Filed: July 6, 1976
    Date of Patent: March 14, 1978
    Inventor: Beshing Hou
  • Patent number: 4008041
    Abstract: An arrangement to produce high efficiency gas phase combustion of liquid fuels. A liquid fuel, such as conventional heating oil, is pumped through a heat exchanger immersed in a liquid bath whose temperature is maintained at a level which is sufficiently high to cause the fuel to gassify but low enough to preclude undesirable chemical decomposition. The liquid bath is contained within an element which is directly exposed to a flame produced by the combustion of the gasified liquid fuel. The liquid bath temperature is controlled by varying the amount of surface area exposed to the flame or by internal forced circulation of the bath liquid. The gasified fuel is injected into an air or oxidizing gas stream and allowed to premix prior to combustion. Combustion is initiated by a spark or pilot flame and is stabilized by a flameholder.
    Type: Grant
    Filed: October 2, 1975
    Date of Patent: February 15, 1977
    Inventors: Gerald Alton Roffe, Horacio Andres Trucco
  • Patent number: 3975138
    Abstract: This invention combines specific new and novel equipment with the equipment of a conventional combustion system for the use of liquid fuel oil to create a new system which converts the liquid fuel into gas and operates as a gas burner rather than as a liquid oil burner. The new and novel equipment thermally cracks liquid hydrocarbons into gaseous hydrocarbons which have substantially lower molecular weights than the liquids from which they were cracked. In the system the burner apparatus itself is modified to burn gas rather than liquid. In this new system the fuel burned does not consist of vapors of the liquids supplied to it but instead operates on the products of decomposition derived from the liquids.
    Type: Grant
    Filed: August 29, 1974
    Date of Patent: August 17, 1976
    Inventors: Leslie J. Kinney, Edward M. Knapp