Patents by Inventor Boris I. Burgman

Boris I. Burgman 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: 7913580
    Abstract: A device and method for preloading a transmission shaft assembly is disclosed. The transmission having the device of the present invention generally has a plurality of gears for providing a plurality of speed ratios. The shaft assembly has a first shaft, a first sleeve shaft, a second sleeve shaft and a first fastener. The first shaft has a flange end and an adjustment end. The first sleeve shaft is concentric with the first shaft and has a first end. The first end of the first sleeve shaft is in communication with the flange end of the first shaft. The second sleeve shaft is concentric with the first shaft and is axially aligned with the first sleeve shaft. The second sleeve shaft has a first end. The plurality of synchronizers for selectively connecting at least one of the plurality of gears to at least one of the first and second sleeve shafts. The first fastener is engagable with the adjustment end of the first shaft and is configured to move axially on the adjustment end.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: March 29, 2011
    Assignee: GM Global Technology Operations LLC
    Inventors: Boris I. Burgman, John A. Diemer, Henryk Sowul, David B Mischler
  • Patent number: 7640818
    Abstract: A transmission is provided having a dual clutch, to achieve torque flow through a countershaft gearing arrangement. The countershaft gearing arrangement includes a plurality of co-planar gear sets having gears that are selectively connectable to a plurality of countershafts. At least one transfer gear set transfers torque from the counter shafts to an output shaft. The output shaft is connected to a final drive unit that has a final drive unit output shaft that is transverse to an input member connected at one end to a torque converter and at the other end to the dual clutch.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: January 5, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Clinton E. Carey, Michael B. Solt, Boris I. Burgman, Henryk Sowul
  • Patent number: 7591749
    Abstract: The present invention provides an electrically variable transmission for a hybrid vehicle. The electrically variable transmission includes a transmission input shaft defining a first axis of rotation, and a transmission output shaft defining a second axis of rotation. A first motor/generator is operatively connected to the transmission input shaft and is configured to rotate about a third axis of rotation for improved packaging. A second motor/generator is operatively connected to the transmission input shaft and is configured to rotate about the first axis of rotation.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: September 22, 2009
    Assignee: GM Global Technology Operations, Inc.
    Inventors: John A. Diemer, Tejinder Singh, Richard A. Pashnik, Boris I. Burgman
  • Patent number: 7419041
    Abstract: A transmission shaft is divided into a first shaft portion releasably connectable to a first electric motor/generator via a first gear set and a second shaft portion connected to a second electric motor/generator via a second gear set. The first and second shaft portions are operatively connected to one another for rotation together. The first shaft portion is selectively slidable with respect to the second shaft portion to connect and disconnect the first shaft portion and the first gear set.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: September 2, 2008
    Assignee: GM Global Technology Operations, Inc.
    Inventors: John A. Diemer, Boris I. Burgman, Henryk Sowul
  • Publication number: 20080202268
    Abstract: A transmission is provided having a dual clutch, to achieve torque flow through a countershaft gearing arrangement. The countershaft gearing arrangement includes a plurality of co-planar gear sets having gears that are selectively connectable to a plurality of countershafts. At least one transfer gear set transfers torque from the counter shafts to an output shaft. The output shaft is connected to a final drive unit that has a final drive unit output shaft that is transverse to an input member connected at one end to a torque converter and at the other end to the dual clutch.
    Type: Application
    Filed: February 23, 2007
    Publication date: August 28, 2008
    Inventors: Clinton E. Carey, Michael B. Solt, Boris I. Burgman, Henryk Sowul
  • Publication number: 20080184831
    Abstract: A device and method for preloading a transmission shaft assembly is disclosed. The transmission having the device of the present invention generally has a plurality of gears for providing a plurality of speed ratios. The shaft assembly has a first shaft, a first sleeve shaft, a second sleeve shaft and a first fastener. The first shaft has a flange end and an adjustment end. The first sleeve shaft is concentric with the first shaft and has a first end. The first end of the first sleeve shaft is in communication with the flange end of the first shaft. The second sleeve shaft is concentric with the first shaft and is axially aligned with the first sleeve shaft. The second sleeve shaft has a first end. The plurality of synchronizers for selectively connecting at least one of the plurality of gears to at least one of the first and second sleeve shafts. The first fastener is engagable with the adjustment end of the first shaft and is configured to move axially on the adjustment end.
    Type: Application
    Filed: January 11, 2008
    Publication date: August 7, 2008
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: BORIS I. BURGMAN, John A. Diemer, Henryk Sowul, David B. Mischler
  • Publication number: 20080070733
    Abstract: The present invention provides an electrically variable transmission for a hybrid vehicle. The electrically variable transmission includes a transmission input shaft defining a first axis of rotation, and a transmission output shaft defining a second axis of rotation. A first motor/generator is operatively connected to the transmission input shaft and is configured to rotate about a third axis of rotation for improved packaging. A second motor/generator is operatively connected to the transmission input shaft and is configured to rotate about the first axis of rotation.
    Type: Application
    Filed: September 15, 2006
    Publication date: March 20, 2008
    Inventors: John A. Diemer, Tejinder Singh, Richard A. Pashnik, Boris I. Burgman
  • Patent number: 7339300
    Abstract: An electromechanical transmission includes a motor/generator having a stator and a rotor and including a structural support member that supports the stator in fixed relation thereto and the rotor in rotational relation thereto. By supporting both the stator and the rotor, the structural support member substantially controls a spatial relationship (i.e., the gap in which a magnetic field is created) between the stator and rotor.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: March 4, 2008
    Assignees: GM Global Technology Operations, Inc., Daimler AG, Chrysler LLC, Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Boris I. Burgman, Richard A. Pashnik, John A. Diemer
  • Patent number: 7314127
    Abstract: An improved hybrid transmission including two electric motor/generator modules and a plurality of planetary gear sets operatively connectable to the motor/generators and to an engine is provided. Novel structural and packaging schemes enhance the function and efficiency of the transmission. More precisely, the present invention relates to an improved apparatus for retaining a clutch hub and providing hydraulic fluid to actuate a clutch.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: January 1, 2008
    Assignees: GM Global Technology Operations, Inc., DaimlerChrysler AG, DaimlerChrysler Corporation
    Inventors: Boris I. Burgman, Richard A. Pashnik, Patrick S. Portell
  • Patent number: 7309165
    Abstract: An improved hybrid transmission including two electric motor/generator modules and a plurality of planetary gear sets operatively connectable to the motor/generators and to an engine is provided. Novel structural and packaging schemes enhance the function and efficiency of the transmission. More precisely, the present invention relates to an improved apparatus for applying an adjustable load to internal rotating components of the hybrid transmission to maximize efficiency thereof.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: December 18, 2007
    Assignees: GM Global Technology Operations, Inc., DaimlerChrysler AG, DaimlerChrysler Corporation
    Inventors: Patrick S. Portell, Boris I. Burgman, John A. Diemer
  • Patent number: 7300377
    Abstract: A planetary transmission includes a plurality of planetary gearsets. The planetary gearsets have a lubrication system comprised of pinion pins secured in side plates and central passages located within the pinion pins. The central passages or cavities have radially outwardly disposed fluid passages, which supply fluid lubrication to support bearings for the pinion pins of the respective planetary gearsets. Lubrication fluid is communicated into the cavities when thrust loads are imposed on the planetary gearsets and the thrust bearings disposed between adjacent planetary gearsets reduces the flow area for the lubrication fluid.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: November 27, 2007
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Dan Coffey, Boris I. Burgman
  • Patent number: 7278942
    Abstract: A support structure for a rotor within a transmission system is provided. The cantilevered support structure is umbrella-shaped to create an area of space between the rotor and the main shaft where other vehicle components, such as a gear set or system of clutches, may be packaged. The cantilevered support structure may be a true cantilever or a steady-rested cantilever. The support structure maintains the rotor at a distance from the transmission main shaft to maintain torque within the system while compacting packaging requirements. A second cantilevered support structure is wineglass-shaped to create a second area of packaging space between the rotor and the main shaft. The support structures may be telescoped to further compact the transmission.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: October 9, 2007
    Assignees: General Motors Corporation, DaimlerChrysler AG, DaimlerChrysler Corporation
    Inventors: Donald Klemen, Boris I. Burgman, Richard A. Pashnik, John A. Diemer
  • Patent number: 7239055
    Abstract: The invention provides a structural member for a vehicle transmission formed with an annular recess in fluid communication with a fluid source and at least partially enclosing and defining an interior space of the transmission. An interior component, such as a motor/generator, is located in the interior space. The annular recess directs cooling fluid provided from the fluid source onto the interior component. The end cover includes structure defining a flow passage in fluid communication with a fluid source and also defining an annular recess in fluid communication with the flow passage. The flow passage and the annular recess are cooperatively configured for directing fluid provided from the fluid source onto an interior component in the interior space for cooling the interior component. Preferably, the interior component is an electric motor/generator that includes a stator having electric windings. The fluid is directed from the annulus onto the electric windings.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: July 3, 2007
    Assignees: GM Global Technology Operations, Inc., DaimlerChrysler AG, DaimlerChrysler Corporation
    Inventors: Boris I. Burgman, Richard A. Pashnik, Henryk Sowul
  • Patent number: 5545102
    Abstract: A differential gear assembly has a planetary reduction gearing and a bevel differential mechanism which share a common carrier. The bevel gear differential mechanism has four pinion gears mounted in the carrier in pairs on slidably disposed supports. The supports also secure telescoping parts of the carrier together to permit easy assembly. The four pinions mesh with two side gears which are rotatably supported in the carrier and connected with respective output shafts.
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: August 13, 1996
    Assignee: General Motors Corporation
    Inventors: Boris I. Burgman, Robert J. Gonzales