Patents by Inventor Brian W. Geiser

Brian W. Geiser 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: 10781769
    Abstract: A cylinder block for use in an internal combustion engine includes a first and second cylinder bores, a first and second cylinder bore liners, and a Siamese insert. The first and second cylinder bores are disposed adjacent to each other. The first and second cylinder bores each comprise a first cylinder bore wall and a second cylinder bore wall, respectively, and a shared cylinder bore wall. The first cylinder bore liner is disposed on a first inner surface of the first cylinder bore wall and the second cylinder bore liner is disposed on a second inner surface of the second cylinder bore wall. The Siamese insert is disposed in a top portion of the shared cylinder bore wall.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: September 22, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Lokesh Choudhary, Su Jung Han, Martin S. Kramer, Brian W. Geiser, Brian Christopher Leuenhagen
  • Publication number: 20200182188
    Abstract: A cylinder block for use in an internal combustion engine includes a first and second cylinder bores, a first and second cylinder bore liners, and a Siamese insert. The first and second cylinder bores are disposed adjacent to each other. The first and second cylinder bores each comprise a first cylinder bore wall and a second cylinder bore wall, respectively, and a shared cylinder bore wall. The first cylinder bore liner is disposed on a first inner surface of the first cylinder bore wall and the second cylinder bore liner is disposed on a second inner surface of the second cylinder bore wall. The Siamese insert is disposed in a top portion of the shared cylinder bore wall.
    Type: Application
    Filed: December 10, 2018
    Publication date: June 11, 2020
    Inventors: Lokesh Choudhary, Su Jung Han, Martin S. Kramer, Brian W. Geiser, Brian Christopher Leuenhagen
  • Publication number: 20200173317
    Abstract: A cylinder head assembly for an internal combustion engine includes a main body, a valve seat insert, and at least one flow passage extending through the main body. The main body may be formed from a first material and defines a recess configured to cooperate with an associated cylinder bore and piston to form a combustion chamber. The flow passage may extend through the main body from the recess. The valve seat insert may be disposed within the recess proximate to an end of the flow passage. The valve seat insert includes a thermally conductive layer of powdered metal having an upper side disposed adjacent to the main body, a hardness layer of powdered metal, and a machining layer of powdered metal.
    Type: Application
    Filed: December 4, 2018
    Publication date: June 4, 2020
    Inventors: Edward J. Keating, Brian W. Geiser
  • Patent number: 8720905
    Abstract: A sealed t-joint includes a first component having a first sealing surface, a second component having a second sealing surface, and a third component including a channel characterized by a channel height, channel width, and a channel depth. The t-joint also includes a gasket having a thickness and a protrusion characterized by a protrusion height, a protrusion width, and a protrusion depth. The protrusion height is less than the channel height, the protrusion width is less than channel width, and the protrusion depth is less than the channel depth. The t-joint additionally includes a polymer sealant. The gasket is compressed between the first and second sealing surfaces to generate a first and second component sub-assembly. Additionally, the polymer sealant is applied into the channel. The third component is subsequently assembled with the first and second component sub-assembly such that the protrusion extends into the channel to seal the t-joint.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: May 13, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Michael Bossner, Curt R. Danielewicz, Keith A. Stahl, Brian W. Geiser
  • Publication number: 20130306008
    Abstract: A sealed t-joint includes a first component having a first sealing surface, a second component having a second sealing surface, and a third component including a channel characterized by a channel height, channel width, and a channel depth. The t-joint also includes a gasket having a thickness and a protrusion characterized by a protrusion height, a protrusion width, and a protrusion depth. The protrusion height is less than the channel height, the protrusion width is less than channel width, and the protrusion depth is less than the channel depth. The t-joint additionally includes a polymer sealant. The gasket is compressed between the first and second sealing surfaces to generate a first and second component sub-assembly. Additionally, the polymer sealant is applied into the channel. The third component is subsequently assembled with the first and second component sub-assembly such that the protrusion extends into the channel to seal the t-joint.
    Type: Application
    Filed: May 17, 2012
    Publication date: November 21, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: MICHAEL BOSSNER, CURT R. DANIELEWICZ, KEITH A. STAHL, BRIAN W. GEISER
  • Patent number: 8534251
    Abstract: An engine assembly may include an engine structure, a first camshaft housing assembly and a first camshaft assembly. The first camshaft housing assembly may be supported by the engine structure and have a first portion providing a first plurality of bearing support surfaces on a first side and a second portion coupled to the first portion and providing a second plurality of bearing support surfaces on a second side opposite the first side. The first camshaft assembly may be rotationally supported by the first camshaft housing assembly and arranged between the first portion and second portion.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: September 17, 2013
    Inventors: Rodney E. Baker, Brian W. Geiser, Cynthia Ann Stuvel, Gary L. Nye
  • Patent number: 8397689
    Abstract: A cylinder head including a dam defining a reservoir surrounding the periphery of the fuel pump tappet/roller follower mounting hole is provided. The cylinder head includes a tappet/roller follower mounted in the tappet/roller follower mounting hole and in communication with a cam and a fuel pump. The fuel pump is located on the high side of the head and oil drainage occurs in a direction away from the mounting hole. The dam and reservoir are configured to retain lubricant in the mounting hole and the sliding interface between the mounting hole and the tappet/roller follower. The dam and reservoir are configured to retain a minimum level of oil in the mounting hole when the head is in vehicle position. A method is provided for retaining lubrication in the tappet/roller follower hole by forming a dam defining a reservoir in the head and passively providing lubricant to the tappet/roller follower hole.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: March 19, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Rodney E. Baker, James B. Hicks, Brian W. Geiser
  • Patent number: 8371260
    Abstract: A central direct injection (DI) cylinder head is configured with an intake valvetrain and an exhaust valvetrain separated by an uncovered central DI valley. The uncovered central DI valley limits oil flow from the high side chamber to the low side chamber and PCV transfer. Oil drainage and additional PCV transfer between the intake and exhaust chambers is provided by drain/vent passages integrally cast into the casting of the cylinder head. The drain/vent passages may be of varying configuration, and may be located between an injector port of a first cylinder set and a spark plug port of an adjacent cylinder set, or at either or both ends of the cylinder head. A method is provided to form a casting of the cylinder head as described herein, including casting of a plurality of drain/vent passages between the first chamber and the second chamber of the cylinder head.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: February 12, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Rodney E. Baker, Roxann M. Bittner, Brian W. Geiser, Pamela A. Sinnott
  • Publication number: 20110277725
    Abstract: An engine assembly may include an engine structure, a first camshaft housing assembly and a first camshaft assembly. The first camshaft housing assembly may be supported by the engine structure and have a first portion providing a first plurality of bearing support surfaces on a first side and a second portion coupled to the first portion and providing a second plurality of bearing support surfaces on a second side opposite the first side. The first camshaft assembly may be rotationally supported by the first camshaft housing assembly and arranged between the first portion and second portion.
    Type: Application
    Filed: October 4, 2010
    Publication date: November 17, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: RODNEY E. BAKER, BRIAN W. GEISER, CYNTHIA ANN STUVEL, GARY L. NYE
  • Publication number: 20110277714
    Abstract: A cylinder head including a dam defining a reservoir surrounding the periphery of the fuel pump tappet/roller follower mounting hole is provided. The cylinder head includes a tappet/roller follower mounted in the tappet/roller follower mounting hole and in communication with a cam and a fuel pump. The fuel pump is located on the high side of the head and oil drainage occurs in a direction away from the mounting hole. The dam and reservoir are configured to retain lubricant in the mounting hole and the sliding interface between the mounting hole and the tappet/roller follower. The dam and reservoir are configured to retain a minimum level of oil in the mounting hole when the head is in vehicle position. A method is provided for retaining lubrication in the tappet/roller follower hole by forming a dam defining a reservoir in the head and passively providing lubricant to the tappet/roller follower hole.
    Type: Application
    Filed: July 22, 2010
    Publication date: November 17, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Rodney E. Baker, James B. Hicks, Brian W. Geiser
  • Publication number: 20110277708
    Abstract: A cylinder head for an internal combustion engine comprises a cooling water jacket having a high volume lower portion and a low volume upper portion. A plurality of coolant risers in the high volume lower portion are configured to receive high pressure coolant from coolant openings in a cylinder block. Coolant risers extending between the high volume lower portion and low volume upper portion define restrictions regulate coolant flow from the high volume lower portion to the low volume upper portion at a predetermined volume and flow.
    Type: Application
    Filed: September 22, 2010
    Publication date: November 17, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Brian W. Geiser, Rodney E. Baker
  • Publication number: 20110277721
    Abstract: A central direct injection (DI) cylinder head is configured with an intake valvetrain and an exhaust valvetrain separated by an uncovered central DI valley. The uncovered central DI valley limits oil flow from the high side chamber to the low side chamber and PCV transfer. Oil drainage and additional PCV transfer between the intake and exhaust chambers is provided by drain/vent passages integrally cast into the casting of the cylinder head. The drain/vent passages may be of varying configuration, and may be located between an injector port of a first cylinder set and a spark plug port of an adjacent cylinder set, or at either or both ends of the cylinder head. A method is provided to form a casting of the cylinder head as described herein, including casting of a plurality of drain/vent passages between the first chamber and the second chamber of the cylinder head.
    Type: Application
    Filed: July 22, 2010
    Publication date: November 17, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Rodney E. Baker, Roxann M. Bittner, Brian W. Geiser, Pamela A. Sinnott
  • Patent number: 6810866
    Abstract: An engine includes cams for actuating intake and exhaust valves controlling transport of air and combustion products to and from a combustion chamber of the engine. The cams have valve opening and closing curves capable of being timed so that the intake valve opening curve partially overlaps the exhaust valve closing curve, allowing retention of some combustion products in the combustion chamber with an incoming air charge. At least one of the cams has variable timing to vary the valve overlap for controlling the amount of exhaust gas retention or recirculation (EGR). The overlapping portions of the cam opening and closing curves are extended to provide a relatively linear variation in valve overlap area over the range of cam variable timing. Thus, variation of exhaust gas retention in the combustion chamber becomes a relatively constant function of the duration of valve overlap in each engine cycle and control of the amount of EGR is improved.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: November 2, 2004
    Assignee: General Motors Corporation
    Inventor: Brian W. Geiser
  • Publication number: 20040074481
    Abstract: An engine includes cams for actuating intake and exhaust valves controlling transport of air and combustion products to and from a combustion chamber of the engine. The cams have valve opening and closing curves capable of being timed so that the intake valve opening curve partially overlaps the exhaust valve closing curve, allowing retention of some combustion products in the combustion chamber with an incoming air charge. At least one of the cams has variable timing to vary the valve overlap for controlling the amount of exhaust gas retention or recirculation (EGR). The overlapping portions of the cam opening and closing curves are extended to provide a relatively linear variation in valve overlap area over the range of cam variable timing. Thus, variation of exhaust gas retention in the combustion chamber becomes a relatively constant function of the duration of valve overlap in each engine cycle and control of the amount of EGR is improved.
    Type: Application
    Filed: October 22, 2002
    Publication date: April 22, 2004
    Inventor: Brian W. Geiser