Patents by Inventor Herbert Langen

Herbert Langen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5732880
    Abstract: The vehicle heater described has a burner supplied from a tank through a fuel line to which a pressure-controlled fuel pump (2) and a solenoid valve (24) are connected. The solenoid valve offers a relatively high resistance to the flow of fuel. The pressure in the pump delivery line thus drops relatively slowly. If vapor/gas forms in the fuel line (L2, L3, L4) due to overheating, it must be driven out of the line as rapidly as possible when the heater is switched on. The solenoid valve (24) offers only a low resistance to air/vapor/gas, resulting in a rapid drop in pressure at the pump delivery outlet and hence an increase in pump frequency (i.e. pump performance). The gas is therefore driven very rapidly out of the line between the pump and the burner, thus avoiding any interruptions in operations due to gas/vapor which has collected in the fuel line.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: March 31, 1998
    Assignee: J. Eberspacher GmbH & Co.
    Inventors: Herbert Langen, Peter Reiser, Dirk Brenner, Wolfgang Pfister, Walter Blaschke, Erwin Burner
  • Patent number: 5707227
    Abstract: The invention pertains to a burner of a vehicle heater which includes a blower for supplying the combustion air, a combustion chamber having a lining which is porous at least in some areas on part of its inner surface, a means for supplying fuel to the porous area of the lining and an electric glow plug for igniting the fuel or fuel-air mixture evaporated from the lining.
    Type: Grant
    Filed: December 1, 1995
    Date of Patent: January 13, 1998
    Assignee: J. Eberspacher GmbH & Co.
    Inventors: Herbert Langen, Fritz Mohring, Stefan Ottenbacher, Wolfgang Schaffert
  • Patent number: 5605453
    Abstract: A burner for a vehicle heating device having a fan or blower for supplying combustion air. A combustion chamber 2 has an inner surface which is provided with a porous lining. A fuel supply line is provided for supplying fuel to the lining. A glow plug ignites the fuel evaporated from the lining. A longitudinal axis of the glow plug has a longitudinal axis which is substantially parallel to a tangential plane of the circumferential wall of the combustion chamber.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: February 25, 1997
    Assignee: J. Eberspacher
    Inventors: Erich Kenner, Herbert Langen, Wolfgang Schaffert, Peter Reiser
  • Patent number: 5456079
    Abstract: A device for thermal regeneration of particle filters is provided for use with a diesel engine exhaust system with a particle filter. The device includes a burner for heating the particle filter during regeneration of the particle filter. A combustion air supply is provided connected to the burner for supplying combustion air. A fuel pump arrangement is provided preferably including plural pumps which are individually actuatable to deliver fuel dependent on the speed and load condition of the diesel engine.
    Type: Grant
    Filed: May 20, 1994
    Date of Patent: October 10, 1995
    Assignee: Firma J. Eberspacher
    Inventor: Herbert Langen
  • Patent number: 5238472
    Abstract: A particle filter for the exhaust gases of internal combustion engines is described, which can be regenerated by burning free, and in which the filter cartridges (12) include a support tube (16) with a lining of filter material (20). The support tubes 16 are conical. The lining with filter material (20) is preferably carried out such that the filter cartridge (12) has a cylindrical shape, i.e., the filter material (20) lining is thicker on the inlet side than on the outlet side. However, lining with an equal thickness of filter material (20) over the entire length of the conical part of the filter cartridge (12) is also shown.
    Type: Grant
    Filed: April 2, 1992
    Date of Patent: August 24, 1993
    Assignee: J. Eberspacher
    Inventors: Wolfgang Pfister, Herbert Langen
  • Patent number: 5194718
    Abstract: A method for providing uniform thermal output from a glow plug for use in an auxiliary heater of a motor vehicle having either a 12 volt or 24 volt power supply without the use of multiplier resistors utilizes a glow plug having two heating rods having the same electrical resistance and three electrical terminals. One end of the first and second rods are permanently electrically connected respectively to the first and third terminals and the other end of the first and second rods are permanently electrically connected to the second terminal. The vehicle voltage is determined and if the 12 volt supply is present the first and second terminals are connected to the power supply and the first and third terminals are electrically connected to each other to place the heating rods in parallel. If a 24 volt supply is present, the first and third terminals are connected to the power supply with the second terminal left in connected thereby placing the heating rods in series.
    Type: Grant
    Filed: July 24, 1990
    Date of Patent: March 16, 1993
    Assignee: J. Eberspacher
    Inventors: Peter Reiser, Herbert Langen, Peter Steiner
  • Patent number: 5090896
    Abstract: With a fluid fuel driven standard heating for motor vehicles, whose combustion chambers are equipped as vaporizer burners, a heater plug with open heater coils up to now would be installed in the usual way. What is disadvantageous for the operation, particularly in the starting, is the voltage dependence of such a heater plug. Also, with time an increasing carbonization would be established. According to the invention the vaporizing of the liquid fuel occurs under a seal by the use of a rod heater plug. The ignition can--independent of voltage--occur with the help of a spark plug (high voltage electrode). In a construction design the vaporizer is developed as a heat pipe, in which the rod heater plug is arranged.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: February 25, 1992
    Assignee: J. Eberspacher
    Inventors: Erich Kenner, Herbert Langen
  • Patent number: 5045097
    Abstract: A soot filter for diesel-powered vehicles has two diesel particle filters which are connected to a preliminary muffler via separate ducts, which open radially into a filter prechamber. The exhaust gases can be sent through one of the diesel particle filters or the other by a damper control device, with the dampers being arranged far away from the filters, in the vicinity of the preliminary muffler. Thus, the dampers are located at a fairly great distance from the burner, which is arranged on the front side of the diesel particle filter, and which is designed such that it produces an approximately disk-shaped flame that is directed toward the front side of the diesel particle filter.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: September 3, 1991
    Assignee: J. Eberspacher
    Inventor: Herbert Langen
  • Patent number: 4992021
    Abstract: A side channel blower, preferably for burners for cleaning soot particle filters mounted in exhaust gas lines of vehicles by burning off, is shown, in which a chamber housing (6) with a chamber (5) is arranged on the air discharge side, wherein air flows into said chamber from the side channel blower (1) and said chamber permits adjustable return of air from said chamber into the annular channel (8) via a bypass (12, 13) and return of additional air, also into said annular channel (2), via an air transfer channel (9) that can be closed with a valve (16), and the air delivered can be fed from said chamber to the filters for cleaning by burning off via two air discharge openings (8a, 8b), which can be closed such that one discharge opening is open and the other discharge opening is closed.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: February 12, 1991
    Assignee: J. Eberspacher
    Inventors: Herbert Langen, Peter Steiner, Helmut Keinert
  • Patent number: 4862846
    Abstract: Arrangement for supplying heat to the cooling fluid of a combustion engine, with a heating apparatus, which has a combustion chamber for gaseous or for liquid fuel, and with a heat exchange device, with which heat generated by the heating apparatus can be transferred to the cooling fluid. The heating apparatus is connected on the outside of the engine block of the combustion engine in such a way, that the heat transfer from the hot combustion gases from the combustion chamber to the cooling water or fluid takes place through the outer wall of the engine block.
    Type: Grant
    Filed: March 22, 1988
    Date of Patent: September 5, 1989
    Assignee: J. Eberspaecher
    Inventor: Herbert Langen
  • Patent number: 4669973
    Abstract: A combustion chamber for heating systems operated with liquid fuel can be used as vehicle heaters but also as heating systems for e.g. cooking purposes and whose control range is expanded as compared with known devices. The combustion chamber includes two sections separated from the combustion space by a plate with a passage opening. Depending on the purpose of use, a different flame guiding insert is arranged between the combustion space and the combustion chamber.
    Type: Grant
    Filed: July 9, 1986
    Date of Patent: June 2, 1987
    Assignee: J. Eberspacher
    Inventors: Herbert Langen, Erich Kenner
  • Patent number: 4650415
    Abstract: A combustion chamber for heating systems operated with liquid fuel can be used as vehicle heaters but also as heating systems for e.g. cooking purposes and whose control range is expanded as compared with known devices. The combustion chamber includes two sections separated from the combustion space by a plate with a passage opening. Depending on the purpose of use, a different flame guiding insert is arranged between the combustion space and the combustion chamber.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: March 17, 1987
    Assignee: J. Eberspacher
    Inventors: Herbert Langen, Erich Kenner
  • Patent number: 4599052
    Abstract: An electromagnetically operated fuel feed pump has an electronic control which comprises a phototransistor circuit with a delay element and a threshold switch. With this control a wear-free operation of the control is possible in a space-saving arrangement.
    Type: Grant
    Filed: March 21, 1985
    Date of Patent: July 8, 1986
    Assignee: J. Eberspacher
    Inventors: Herbert Langen, Fritz Reuter
  • Patent number: 4536151
    Abstract: An engine-independent heater, particularly a space heater for automobiles comprises a housing which includes a combustion chamber and an antechamber which is tangentially connected into the combustion chamber. The antechamber receives a fuel and air mixture which is ignited in the antechamber and directed into the main combustion chamber. The construction includes the housing carrying an ultrasonic vibrator which is actuated in order to intermix air which is drawn into the housing for the vibrator with fuel which is directed against the vibrator so that the coolant air intermix has there delivered into the antechamber of the heater. The construction includes a nipple connection into the antechamber which sprays fuel from a proportioning pump into the vicinity of the ultrasonic vibrator.
    Type: Grant
    Filed: November 9, 1983
    Date of Patent: August 20, 1985
    Assignee: J. Eberspacher
    Inventors: Herbert Langen, Peter Reiser, Erich Kenner
  • Patent number: 4010895
    Abstract: In the cooling system of a water-cooled engine for a vehicle, a heat exchanger is arranged for heating the interior of the vehicle using the heat extracted from the water which cools the engine. To provide rapid heating of the interior of the vehicle and preheating of the engine, a heating system is incorporated into the cooling system for selectively heating a portion of the cooling water to a desired temperature and then passing the heated water into the heat exchanger for heating the interior of the vehicle. After flowing through the heat exchanger, the heated water is passed through the water-cooled engine to preheat it.
    Type: Grant
    Filed: November 20, 1974
    Date of Patent: March 8, 1977
    Assignee: J. Eberspacher
    Inventors: Siegfried Kofink, Wolfgang Rich, Herbert Langen