Patents by Inventor Michael Groddeck

Michael Groddeck 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: 7469778
    Abstract: In a drive unit for a hybrid motor vehicle for coupling an internal combustion engine and/or a motor-generator to a transmission, wherein an input shaft of the drive unit is connected to the internal combustion engine and the motor-generator is connected to an output shaft of the drive unit and a clutch is arranged between the input shaft and the output shaft, the clutch is normally engaged and means are provided for opening the clutch depending on the speed of the output shaft and also a freewheeling coupling is arranged in the drive unit in parallel with the clutch for connecting the input shaft to the output shaft via the freewheeling coupling.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: December 30, 2008
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Michael Groddeck, Joachim Huster
  • Patent number: 7410444
    Abstract: In a drive unit for a hybrid motor vehicle including an internal combustion engine and a dynamoelectric machine to be connected to a transmission of the motor vehicle, wherein the drive unit comprises an input shaft connected to the internal combustion engine, an output shaft connected to the dynamoelectric machine for rotation therewith and a clutch for connecting the input shaft to the output shaft, the clutch includes centrifugal actuators for causing engagement of the clutch upon rotation at a speed in excess of a threshold value, springs counteracting the centrifugal actuators for causing the release of the clutch at a speed below the threshold value, and an electromagnetic actuators for causing engagement of the clutch at a speed below the threshold value to permit startup operation of the internal combustion engine by the dynamoelectric machine.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: August 12, 2008
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Michael Groddeck, Joachim Huster
  • Patent number: 7225785
    Abstract: In a bottom plate for closing the crankcase of an internal combustion engine including coolant and lubricant flow channels integrated into the bottom plate which consists of individual plates stacked on top of one another, a heat exchanger, which consists of heat exchanger plates stacked on top of one another as disposed on the bottom plate so as to form at least one common chamber therewith for transferring at least one of coolant and lubricant between the bottom plate and the heat exchanger.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: June 5, 2007
    Assignee: MTU Friedrichshafen
    Inventors: Michael Groddeck, Joachim Huster, Georg Ruetz
  • Publication number: 20060196748
    Abstract: In a drive unit for a hybrid motor vehicle for coupling an internal combustion engine and/or a motor-generator to a transmission, wherein an input shaft of the drive unit is connected to the internal combustion engine and the motor-generator is connected to an output shaft of the drive unit and a clutch is arranged between the input shaft and the output shaft, the clutch is normally engaged and means are provided for opening the clutch depending on the speed of the output shaft and also a freewheeling coupling is arranged in the drive unit in parallel with the clutch for connecting the input shaft to the output shaft via the freewheeling coupling.
    Type: Application
    Filed: February 24, 2006
    Publication date: September 7, 2006
    Inventors: Michael Groddeck, Joachim Huster
  • Publication number: 20060196750
    Abstract: In a drive unit for a hybrid motor vehicle including an internal combustion engine and a dynamoelectric machine to be connected to a transmission of the motor vehicle, wherein the drive unit comprises an input shaft connected to the internal combustion engine, an output shaft connected to the dynamoelectric machine for rotation therewith and a clutch for connecting the input shaft to the output shaft, the clutch includes centrifugal actuators for causing engagement of the clutch upon rotation at a speed in excess of a threshold value, springs counteracting the centrifugal actuators for causing the release of the clutch at a speed below the threshold value, and an electromagnetic actuators for causing engagement of the clutch at a speed below the threshold value to permit startup operation of the internal combustion engine by the dynamoelectric machine.
    Type: Application
    Filed: February 24, 2006
    Publication date: September 7, 2006
    Inventors: Michael Groddeck, Joachim Huster
  • Patent number: 7066133
    Abstract: A cover plate is provided for closing a crankcase of an internal-combustion engine on its underside. The cover plate has a suction point for collecting lubricant from the crankcase. With respect to the crankcase, the suction point is closed off by a screen plate. This screen plate comprises a first area with passage openings for the lubricant and a second area which is impervious to the lubricant. The screen plate has the effect that a reliable lubricant intake from the suction point is ensured even in the event of a tilt of the internal-combustion engine.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: June 27, 2006
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Michael Groddeck, Marc Lotz, Georg Ruetz
  • Publication number: 20060096556
    Abstract: In a bottom plate for closing the crankcase of an internal combustion engine including coolant and lubricant flow channels integrated into the bottom plate which consists of individual plates stacked on top of one another, a heat exchanger, which consists of heat exchanger plates stacked on top of one another as disposed on the bottom plate so as to form at least one common chamber therewith for transferring at least one of coolant and lubricant between the bottom plate and the heat exchanger.
    Type: Application
    Filed: November 2, 2005
    Publication date: May 11, 2006
    Inventors: Michael Groddeck, Joachim Huster, Georg Ruetz
  • Patent number: 6997672
    Abstract: A burst protector for a turbocharger covers a first endangered segment of the housing. The burst protector includes insulation, a first sheet, and a second sheet. As a supplement, a casing is installed around the burst protector. The safety of a turbocharger in operation is increased by the invention.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: February 14, 2006
    Assignees: MTU Friedrichshafen GmbH, Wendt SIT GmbH
    Inventors: Norbert Wand, Michael Hartmann, Michael Groddeck, Wolfgang Bauer
  • Publication number: 20050011482
    Abstract: A cover plate is provided for closing a crankcase of an internal-combustion engine on its underside. The cover plate has a suction point for collecting lubricant from the crankcase. With respect to the crankcase, the suction point is closed off by a screen plate. This screen plate comprises a first area with passage openings for the lubricant and a second area which is impervious to the lubricant. The screen plate has the effect that a reliable lubricant intake from the suction point is ensured even in the event of a tilt of the internal-combustion engine.
    Type: Application
    Filed: June 7, 2004
    Publication date: January 20, 2005
    Applicant: MTU FREIDRICHSHAFEN GMBH
    Inventors: Michael Groddeck, Marc Lotz, Georg Ruetz
  • Patent number: 6817335
    Abstract: The invention relates to a cover plate (2) for a crankcase (1) of an internal combustion engine. Said cover plate (2) extends over the entire surface area of the crankcase (1). The auxiliary aggregates (6, 7) and filters are mounted on the cover plate (2). In addition, the cover plate (2) comprises channels for guiding media. The invention is advantageous in that it facilitates mounting.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: November 16, 2004
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Michael Groddeck, Michael Hartmann, Franz Edmaier, Juergen Giesselmann
  • Publication number: 20040018102
    Abstract: A burst protector for a turbocharger covers a first endangered segment of the housing. The burst protector includes insulation, a first sheet, and a second sheet. As a supplement, a casing is installed around the burst protector. The safety of a turbocharger in operation is increased by the invention.
    Type: Application
    Filed: May 7, 2003
    Publication date: January 29, 2004
    Inventors: Norbert Wand, Michael Hartmann, Michael Groddeck, Wolfgang Bauer
  • Patent number: 6666175
    Abstract: A closed loop cooling water system for an internal combustion engine includes a radiator, an inlet line connecting the radiator to the internal combustion engine, a cooling water pump disposed in the inlet line, the cooling water pump having a suction side, a compensating tank, a compressor connected to the compensating tank, and a connecting line connecting the compensating tank to the inlet line on the suction side of the cooling water pump. The compressor supplies compressed air to the compensating tank to set the pressure level in the compensating tank. The pressure level in the compensating tank affects the pressure level on the suction side of the cooling water pump during operation.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: December 23, 2003
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Norbert Wand, Michael Hartmann, Michael Groddeck
  • Publication number: 20030024490
    Abstract: A closed loop cooling water system for an internal combustion engine includes a radiator, an inlet line connecting the radiator to the internal combustion engine, a cooling water pump disposed in the inlet line, the cooling water pump having a suction side, a compensating tank, a compressor connected to the compensating tank, and a connecting line connecting the compensating tank to the inlet line on the suction side of the cooling water pump. The compressor supplies compressed air to the compensating tank to set the pressure level in the compensating tank. The pressure level in the compensating tank affects the pressure level on the suction side of the cooling water pump during operation.
    Type: Application
    Filed: June 26, 2002
    Publication date: February 6, 2003
    Applicant: MTU Friedrichshafen GmbH.
    Inventors: Norbert Wand, Michael Hartmann, Michael Groddeck
  • Publication number: 20030000495
    Abstract: The invention relates to a cover plate (2) for a crankcase (1) of an internal combustion engine. Said cover plate (2) extends over the entire surface area of the crankcase (1). The auxiliary aggregates (6, 7) and filters are mounted on the cover plate (2). In addition, the cover plate (2) comprises channels for guiding media. The invention is advantageous in that it facilitates mounting.
    Type: Application
    Filed: June 28, 2002
    Publication date: January 2, 2003
    Inventors: Michael Groddeck, Michael Hartmann, Franz Edmaier, Juergen Giesselmann
  • Patent number: 6253725
    Abstract: For an internal-combustion engine in a V-arrangement, a crankcase has a parallelepiped-shaped construction with a rectangular cross-section. The base side of the crankcase corresponds approximately to the lateral projection in the area of the cylinder heads. In addition, the crankcase has at least one chamber. Preferably, several chambers are provided corresponding to the number of cylinders of the internal-combustion engine. These chambers point from the longitudinal side of the crankcase into the interior. Auxiliary assemblies, heat exchangers, filters and oil supply spaces are arranged in these chambers.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: July 3, 2001
    Assignee: MTU Mortoren- und Turbinen-Union Friedrichshafen GmbH
    Inventors: Michael Groddeck, Michael Hartmann, Franz Edmaier
  • Patent number: 5056470
    Abstract: For the mounting and servicing of a piston-operated internal-combustion engine, devices for the highly loadable fastening of an auxiliary mounting tool are developed at the cylinder lining 11 and the piston 23. This facilitates the mounting and dismounting of the cylinder liner 11 and the pertaining piston/connecting rod assembly as a unit.
    Type: Grant
    Filed: August 15, 1990
    Date of Patent: October 15, 1991
    Assignee: S. Soga & Co.
    Inventors: Gerd-Michael Wolters, Otto Reifenscheid, Michael Groddeck
  • Patent number: 4961479
    Abstract: For the distribution of lubricating oil, a duct is arranged in the crankcase 13 of a piston-operated internal-combustion engine and extends through several transverse walls 11, 12. The sections of the duct between two transverse walls 11, 12 are composed of an insert pipe 23 and of a socket pipe 24 which are constructed to be axially slidable and clampable with respect to one another. The free ends of the insert pipe 23 and of the socket pipe 24, in a sealed manner, extend in the bored transverse-wall passages 14, 15 of the duct. The arrangement results in a simplified tooling of the crankcase 13 in the area of the duct.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: October 9, 1990
    Assignee: MTU Friedrischshafen
    Inventors: Michael Groddeck, Otto Reifenscheid
  • Patent number: 4936417
    Abstract: A lubricating system is disclosed which includes a splash cooling of the pistons of an internal-combustion engine by spraying nozzles, the cooling jets of which are aimed at the interior surfaces of the pistons. In order to achieve, after the start of an internal-combustion engine, a rapid buildup of the lubricant pressure, the lubricant supply to the spraying nozzles is interrupted in this initial operating phase. Since, in the starting phase, the lubricating oil supply to the camshafts can be reduced considerably or can even be switched off completely without damaging the bearings, the spraying nozzles and the camshafts receive a common lubricating oil supply which can be controlled centrally by means of control valves. It is advantageous that already existing lubricant ducts may be used, and the spraying nozzles can be constructed in a simple manner without any integrated control valves.
    Type: Grant
    Filed: June 20, 1989
    Date of Patent: June 26, 1990
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Michael Groddeck, Otto Reifenscheid, Gerd-Michael Wolters
  • Patent number: 4909216
    Abstract: The lever (13) cooperates on the one hand with a rotatable part (12) and, on the other, is coupled with a to-and-fro movable adjusting member (14). The lever (13) consists of a housing (15) traversed by the rotatable part (12), of a piston-like spring plate (16) and of a return spring (19) clamped-in between housing (15) and sping plate (16). Spring plate (16) and rotatable part (12) form in the mutually cooperating area a torque-limiting driving device. The hollow space (25) underneath the spring plate (16) is adapted to be acted upon with oil pressure by bores (21, 22) in the rotatable part (12) which are controllably connected to a pressure oil source (24). The oil pressure displaces the spring plate (16) so that the driving device is disengaged. The lever (13) is then displaced by the spring (27) of the to-and-fro movable part into an end position independently of the position of the rotatable part (12) which corresponds to the zero delivery of the fuel injection pump (11).
    Type: Grant
    Filed: July 6, 1988
    Date of Patent: March 20, 1990
    Assignee: MTU Friedrichshafen GmbH
    Inventor: Michael Groddeck