Patents by Inventor Todd A. Sheridan

Todd A. Sheridan 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: 10473034
    Abstract: According to an aspect, a system for a gas turbine engine includes a reduction gear train operable to drive rotation of a starter gear train that interfaces to an accessory gearbox of the gas turbine engine. The reduction gear train includes a starter interface gear that engages the starter gear train and a core-turning clutch operably connected to the starter interface gear. The reduction gear train also includes a geared rotary actuator including a primary planetary gear system, where the geared rotary actuator is operably connected to the core-turning clutch. The reduction gear train further includes a secondary planetary gear system operably connected to the primary planetary gear system and a core-turning input. The system also includes a mounting pad with an interface to couple a core-turning motor to the core-turning input of the reduction gear train.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: November 12, 2019
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Benjamin T. Harder, Brian McMasters, James Vandung Nguyen, Dwayne Leon Wilson, Paul F. Fox, Richard Alan Davis, Richard R. Hergert, Jeffrey Todd Roberts, Jeff A. Brown, Daniel Richard Walker, Matthew Allen Slayter, William G. Sheridan
  • Patent number: 8230679
    Abstract: An internal combustion engine system includes: an engine with a plurality of pistons; a variable load driven by rotary power from the engine, the load including one or more of a pump, an air conditioner; and a fan; aftertreatment equipment to control exhaust emission from the engine; a sensor to provide a sensor signal corresponding to temperature of exhaust from the engine; and a controller coupled to the sensor and operable to regulate a regeneration operation of one or more components of the aftertreatment equipment. The controller responds to the sensor signal to generate one or more control signals to adjust the variable load to increase loading of the engine and correspondingly raise the temperature of the exhaust for the regeneration operation.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: July 31, 2012
    Assignee: Cummins Inc.
    Inventors: Timothy R. Frazier, Todd Sheridan
  • Publication number: 20100024391
    Abstract: An internal combustion engine system includes: an engine with a plurality of pistons; a variable load driven by rotary power from the engine, the load including one or more of a pump, an air conditioner; and a fan; aftertreatment equipment to control exhaust emission from the engine; a sensor to provide a sensor signal corresponding to temperature of exhaust from the engine; and a controller coupled to the sensor and operable to regulate a regeneration operation of one or more components of the aftertreatment equipment. The controller responds to the sensor signal to generate one or more control signals to adjust the variable load to increase loading of the engine and correspondingly raise the temperature of the exhaust for the regeneration operation.
    Type: Application
    Filed: May 26, 2009
    Publication date: February 4, 2010
    Inventors: Timothy R. Frazier, Todd Sheridan
  • Publication number: 20070163245
    Abstract: An internal combustion engine includes an exhaust manifold, and a selective catalytic reduction exhaust aftertreatment system. The selective catalytic reduction exhaust aftertreatment system includes a reduction catalytic converter in communication with the exhaust manifold; a reagent holding tank in fluid communication with the reduction catalytic converter; and a reagent supply canister selectively and removably couplable with the reagent holding tank.
    Type: Application
    Filed: January 19, 2006
    Publication date: July 19, 2007
    Inventors: Todd Sheridan, Laszlo Tikk, Rod Radovanovic
  • Patent number: 5617726
    Abstract: EGR induction supercharged or turbocharged internal combustion engine having EGR and EGR cooling in which EGR cooling is obtained through jacket water coolers and/or an air-to-air aftercooler. EGR induction is obtained via either low pressure (ambient) induction to the system intake, or via venturi or passive pump induction into the pressurized intake. Bypassing of the EGR cooler is used to reduce condensation and fouling in the EGR cooler and to provide warmer air to reduce light load and cold ambient hydrocarbon production. A passive or catalyzed particulate trap and crankshaft driven supercharger boosting system are provided to address engine response deterioration and particulate increase problems associated with EGR.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: April 8, 1997
    Assignee: Cummins Engine Company, Inc.
    Inventors: Todd A. Sheridan, A. S. Ghuman, Angie R. May, Rod Radovanovic, John M. Janssen, Peter V. Woon
  • Patent number: 5572972
    Abstract: A control system for a diesel engine for creating an ON/OFF feedback signal for controlling engine-related functions includes a mechanical assembly involving a fuel injection pump, a governor for the fuel injection pump, a pair of cam stops as part of the governor and an electrically grounded moveable rack finger. One of the cam stops is a fixed stop which limits travel of the rack finger and thus limits fueling to a predetermined level. The only variable which determines fuel quantity for this full load cam stop is engine speed. The second stop which limits rack finger travel is an air-fuel cam stop which has two independent variables that determine the fuel limit. These independent variables are engine speed and engine boost pressure. The air-fuel cam stop is placed within a housing which is electrically isolated from the rest of the fuel pump and the engine.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: November 12, 1996
    Assignee: Cummins Engine Company, Inc.
    Inventors: Todd A. Sheridan, Rod Radovanovic, Angela R. May