Patents by Inventor Wolfram Hellmich

Wolfram Hellmich 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: 7186195
    Abstract: A tensioner for endless driving elements, such as chains and belts, comprising a tensioning piston provided with locking means, and a locking piston which is adapted to be engaged with and disengaged from the locking means so as to arrest or release the movement of tensioning piston, the locking piston comprising an operating section causing locking piston to move to the arresting position and to the release position, and a locking area used for engagement with the locking means of the tensioning piston and arranged separately from the operating section.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: March 6, 2007
    Assignee: Joh. Winklhofer & Sohne GmbH und. Co. KG
    Inventors: Wolfram Hellmich, Volker Hirschmann
  • Patent number: 7093778
    Abstract: The invention concerns a device to convey and/or spray free-flowing media, in particular fluids, which works in accordance with the energy storage principle and is designed as an electromagnetically-powered reciprocating pump with at least one armature device as a drive element, whereby the armature device includes at least two armature elements and the armature elements are assigned magnetically corresponding yoke elements.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: August 22, 2006
    Assignee: BRP US Inc.
    Inventors: Wolfram Hellmich, Klaus-J├╝rgen Peter, Robert Kotter, Liang Zhang
  • Publication number: 20050170922
    Abstract: A tensioner for endless transmission elements such as chains or belts, having a pressure compartment that is impinged upon a tensioning pressure to actuate tensioning means acting upon the transmission element, a supply connection that is impinged upon by a supply pressure, and a valve interposed between the pressure compartment and the supply connection and comprising a closing unit that can be transferred to closed position by the tensioning pressure. The valve is designed as a tensioning pressure control valve, and the closing unit is provided with a substantially spring-elastic pretensioning element that counteracts the transfer to the closed position.
    Type: Application
    Filed: October 31, 2002
    Publication date: August 4, 2005
    Inventor: Wolfram Hellmich
  • Publication number: 20040067805
    Abstract: The present invention relates to a tensioner for endless driving elements, such as chains, belts etc., comprising a tensioning piston provided with locking means, and a locking piston which is implemented such that it is adapted to be engaged with and disengaged from said locking means so as to arrest or release the movement of said tensioning piston, said locking piston comprising an operating section causing said locking piston to move to the arresting position and to the release position, and a locking area used for engagement with said locking means of the tensioning piston and arranged separately from said operating section.
    Type: Application
    Filed: November 7, 2003
    Publication date: April 8, 2004
    Inventors: Wolfram Hellmich, Volker Hirschmann
  • Patent number: 6615128
    Abstract: A method for electronic trimming of at least one fluid injection pump, in which a control signal which is corrected for injection pump operation and, preferably, a control signal which is corrected for engine operation as well are determined by a control module of an electronic control device and are used for operation of the fluid injection pump, and in which, furthermore, a fluid injection pump is used which operates on the energy storage principle and whose feed characteristic follows an at least third-order polynomial identically or at least largely approximately and the parameters are determined in predetermined standard conditions for an at least third-order standard polynomial, are stored and are used in the determination of the required fuel injection quantity.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: September 2, 2003
    Assignee: Bombardier Motor Corporation of America
    Inventor: Wolfram Hellmich
  • Patent number: 6604505
    Abstract: A method and apparatus for controlling the ignition in an internal combustion engine with a device for injecting fuel into a combustion chamber of the engine is provided, in which a control signal for the injection process and a control signal for the ignition process are used. The control signal for the injection process is used to start the measurement of a predetermined.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: August 12, 2003
    Assignee: Bombardier Motor Corporation of America
    Inventor: Wolfram Hellmich
  • Publication number: 20020092496
    Abstract: An internal combustion engine gas exhaust device comprising an exhaust manifold (1) attached to the cylinder head for collecting exhaust gases driven out of the cylinders, and an exhaust line (8) comprising pollutant removing and sound absorbing means. The manifold (1) is connected to the exhaust line (8) via a coupling system (9) having a flange (10), a mating flange (11) and a gasket (12) therebetween. The flange (10) integral with the exhaust manifold (1) and/or the mating flange (11) integral with the exhaust line (8) is (are) shaped in such a way that the gasket (12) is protected from the exhaust gases.
    Type: Application
    Filed: March 11, 2002
    Publication date: July 18, 2002
    Inventor: Wolfram Hellmich
  • Patent number: 6357416
    Abstract: A process for controlling the ignition in an internal combustion engine with a device for injecting fuel into a combustion chamber of the engine is provided, in which a control signal for the injection process and a control signal for the ignition process are used. The control signal for the injection process is used to start the measurement of a predetermined delay for the issue of the ignition control signal, as well as for the speed or load dependent switching to the ignition through the measurement of the crankshaft angle.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: March 19, 2002
    Assignee: FICHT GmbH Co. KG
    Inventor: Wolfram Hellmich
  • Patent number: 6173692
    Abstract: An internal combustion engine assembly including an internal combustion engine including an engine block having at lest one cylinder, a piston mounted within the cylinder for reciprocal movement in the cylinder, a fuel injector for injecting fuel into the cylinder, the fuel injector initiating a fuel injection event at a predetermined time and a circuit for generating a spark in the cylinder a predetermined amount of time after the injection event to cause combustion of fuel in the cylinder.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: January 16, 2001
    Assignee: Outboard Marine Corporation
    Inventors: Wolfram Hellmich, Todd D. Craft, Gregory J. Binversie, Philip J. Bylsma
  • Patent number: 6158409
    Abstract: A piston for a direct fuel injection engine is described. The piston comprises a cylindrical skirt and a piston face. The cylindrical skirt has an axis. The piston face has a bowl. The bowl has a wall extending about an axis in inclined relation to the cylindrical skirt axis. An engine is also described. The engine comprises an engine block defining an engine cylinder and a piston moveable axially in the engine cylinder. The piston comprises a cylindrical skirt and a dome-shaped piston face, the piston face having therein a bowl. The bowl located with the cylinder axis passing therethrough. The bowl is defined by a cylindrical wall extending about an axis extending in inclined relation to the axis of the cylinder. The bowl includes a bottom wall extending perpendicularly to the bowl axis. The engine also comprises a fuel injector nozzle adapted to direct a spray of fuel toward the bowl for deflection toward a spark plug disposed on the opposite side of the cylinder axis from the fuel injector.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: December 12, 2000
    Assignee: Outboard Marine Corporation
    Inventors: George T. Gillespie, Peter W. Brown, Francis A. McGinnity, Theodore J. Holtermann, Robert L. Niemchick, Erik R. Jorgensen, Gregory J. Binversie, Paul W. Breckenfeld, Wolfram Hellmich
  • Patent number: 6109549
    Abstract: A fuel injector nozzle includes a nozzle body and a poppet disposed in the body for reciprocating movement. The body has an internal bore surrounding the poppet. The internal bore tapers in a constant angle of taper from a front seating region to a fuel reservoir region. The poppet has a corresponding surface which diverges slightly from the bore. The surfaces of the bore and poppet form flow control surfaces which terminate in a sharp-edged orifice at the front face of the nozzle. When the poppet is displaced to an open or flow position, fuel is accelerated to the orifice and atomized into a combustion chamber.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: August 29, 2000
    Assignee: Outboard Marine Corporation
    Inventors: Martin L. Radue, Scott E. Parrish, Daniel E. Peltier, Wolfram Hellmich
  • Patent number: 6026792
    Abstract: A method of operating a two-stroke, spark-ignited, internal combustion engine in which the ignition is time-based controlled at low or idle speeds and is crank-angle-based controlled at higher speeds.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: February 22, 2000
    Assignee: Outboard Marine Corporation
    Inventors: Philip D. McDowell, Wolfram Hellmich, Todd D. Craft, Christopher R. Irgens, Wolfgang Heimberg, Francis A. McGinnity, Gregory J. Binversie
  • Patent number: 6004127
    Abstract: A heating system with a combustion chamber into which fuel is fed via a fuel feed unit in the form of an injection device which operates on the energy-storage principle and has a pump and a nozzle device which delivers bursts of fuel in specified quantities. With this fuel burner, it is possible to select both the quantity of fuel injected and the injection frequency independently of any boundary conditions, thereby optimizing levels of harmful pollutants in the exhaust gas and effectively counteracting resonance vibrations in the burner.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: December 21, 1999
    Assignee: Ficht GmbH & Co. KG
    Inventors: Wolfgang Heimberg, Wolfram Hellmich, Franz Kogl, Reinhold Ficht
  • Patent number: 5996548
    Abstract: The invention relates to a method of operating an internal combustion engine and to an internal combustion engine respectively. In accordance with the method of operating an internal combustion engine in accordance with the invention fuel is injected into a combustion chamber so that it is reflected by a piston, as a result of which charge stratification occurs in the combustion chamber. Fresh air is inducted slightly throttled or not throttled at all into the combustion chamber irrespective of the loading condition of the internal combustion engine so that the exhaust gases from the previous working stroke are completely swept from the combustion chamber. The output of the internal combustion engine is generated substantially via the injected amount of fuel. Due to the method in accordance with the invention charge stratification is caused in which burning of the fuel/air mixture is ideal. The internal combustion engine in accordance with the invention thus features smooth running for ideal emission values.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: December 7, 1999
    Assignee: Ficht GmbH & Co. KG
    Inventor: Wolfram Hellmich
  • Patent number: 5960766
    Abstract: The invention relates to a method of operating an internal combustion engine and to an internal combustion engine respectively. In accordance with the method of operating an internal combustion engine in accordance with the invention fuel is injected into a combustion chamber so that it is reflected by a piston, as a result of which charge stratification occurs in the combustion chamber. Fresh air is inducted slightly throttled or not throttled at all into the combustion chamber irrespective of the loading condition of the internal combustion engine so that the exhaust gases from the previous working stroke are completely swept from the combustion chamber. The output of the internal combustion engine is generated substantially via the injected amount of fuel.Dueto the method in accordance with the invention charge stratification is caused in which burning of the fuel/air mixture is ideal. The internal combustion engine in accordance with the invention thus features smooth running for ideal emission values.
    Type: Grant
    Filed: March 18, 1997
    Date of Patent: October 5, 1999
    Assignee: Ficht GmbH & Co. KG
    Inventor: Wolfram Hellmich
  • Patent number: 5779454
    Abstract: Disclosed herein is a fuel pump comprising a housing including therein a high pressure fuel chamber, a fuel outlet valve communicating with the high pressure fuel chamber and being operable to prevent fuel inflow and to permit fuel outflow when the fuel pressure is above a predetermined level, a fuel inlet valve communicating with the high pressure chamber and being operable to prevent fuel outflow and to permit fuel inflow, and a bearing bore extending from the high pressure chamber, a rod slideably and sealingly supported in the bearing bore for movement relative to a retracted position, and structure located in the housing for displacing the rod from the retracted position and in the direction toward the high pressure fuel chamber through an initial stroke length without encountering substantial resistance and thereafter displacing the rod through a subsequent stroke length which is effective to highly pressurize the fuel in the high pressure fuel chamber.
    Type: Grant
    Filed: July 25, 1995
    Date of Patent: July 14, 1998
    Assignee: FICHT GmbH & Co. KG
    Inventors: Gregory J. Binversie, Wolfgang Heimberg, Theodore J. Holterman, Christopher R. Irgens, Francis A. McGinnity, Philip D. McDowell, Richard T. Tunkieicz, Lee A. Woodward, Wolfram Hellmich
  • Patent number: 5520154
    Abstract: The invention pertains to a fuel injection device operating according to the solidstate energy storage principle, whereby a rotor element carried in a pump housing of an electromagnetically driven reciprocating pump is accelerated almost without resistance, whereby the rotor element stores kinetic energy and impacts on a piston element, so that a pressure impulse is generated in the fuel contained in a closed pressure chamber before the piston element due to the fact that the stored kinetic energy of the rotor element is transferred via the piston element to the fuel in the pressure chamber and whereby the pressure impulse is used for the injection of fuel through a nozzle and whereby the rotor element is carried form-locking on the piston element and the two elements are mutually spring-mounted.
    Type: Grant
    Filed: September 2, 1994
    Date of Patent: May 28, 1996
    Assignee: Ficht GmbH
    Inventors: Wolfgang Heimberg, Wolfram Hellmich, Franz Kogl, Paul Malatinszky
  • Patent number: 5469828
    Abstract: The invention pertains to a fuel injection device operating according to the solid state energy storage principle, whereby a piston element mounted in a pump cylinder of an electromagnetic reciprocating pump, displaces quantities of the fuel to be injected during a virtually resistanceless acceleration phase during which the piston element stores kinetic energy, before the ejection in the pump area. The displacement is stopped suddenly with the means for interrupting the displacement, so that a pressure impulse is generated in the fuel contained in a closed pressure chamber by direct transfer of the stored kinetic energy of the piston element to the fuel in the pressure chamber. The pressure impulse for the ejection of fuel is used by an injection device, whereby the means for interrupting the displacement and producing the pressure impulse are arranged outside the leading liquid-tight contact area between piston element and piston cylinder of the reciprocating pump.
    Type: Grant
    Filed: September 2, 1994
    Date of Patent: November 28, 1995
    Assignee: Ficht GmbH
    Inventors: Wolfgang Heimberg, Wolfram Hellmich, Franz Kogl, Paul Malatinszky
  • Patent number: 5131353
    Abstract: In a crank loop frame for a crank loop drive of an internal combustion engine for the transformation of a back and forth motion into a rotary motion, each of the slideway frame, webs of the crank loop frame includes portions of a heat capacity sufficient for a homogeneous distribution of the heat disposed both above and below the slideway of the slideway frame web. Each of the slideway frame webs has an H-shaped cross-section and contains a longitudinal slideway web portion as well as two leg web portions disposed tangentially at the longitudinal edges of the slideway web portion. The areal center of gravity of each slideway frame web is disposed to the side of its respective slideway remote from the slide, thereby to promote dissipation or the homogeneous distribution of heat to both sides of the slideways.
    Type: Grant
    Filed: November 27, 1990
    Date of Patent: July 21, 1992
    Assignee: Ficht, GmbH
    Inventors: Alois Bauer, Wolfram Hellmich, Manfred Schindler