Patents by Inventor Anthony Shaull

Anthony Shaull 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).

  • Publication number: 20200217286
    Abstract: An injector is provided, comprising an injector body comprising an inlet passage configured to receive fluid, at least one injection outlet configured to deliver fluid, and a central bore, a needle valve disposed for reciprocal movement within the central bore between a closed position and an opened position; and an actuator configured to move the needle valve between the closed position wherein a first portion of a surface of the valve tip engages a first portion of a surface of the injector body to form a first seal that inhibits flow through the at least one injection outlet, and the opened position wherein a second portion of the surface of the valve tip engages a second portion of the surface of the injector body to form a second seal that inhibits flow through the drain outlet.
    Type: Application
    Filed: November 22, 2017
    Publication date: July 9, 2020
    Inventors: Richard D. Thomas, Lester L. Peters, Anthony A. Shaull
  • Patent number: 10677119
    Abstract: Systems and methods including spacers comprising a first face configured to engage with a cam shaft, a second face, and a third face operationally coupled to the first face and the second face, wherein the third face is configured to displace a lubricating fluid and permit rotation of the cam shaft are disclosed.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: June 9, 2020
    Assignee: Cummins Inc.
    Inventors: Anthony A. Shaull, Rodney J. Hemmerlein, Richard Davis Thomas
  • Patent number: 10519911
    Abstract: A fuel pump for an internal combustion engine is provided comprising a barrel including a central bore having a longitudinal axis, a plunger disposed partially in the central bore and movable along the longitudinal axis, a spring retainer, a first coil spring having a proximal end in contact with a first section of the barrel and a distal end in contact with the spring retainer to urge the spring retainer into engagement with a tappet assembly, an extender element coupled to the plunger, and a second coil spring having a proximal end in contact with a second section of the barrel and a distal end in contact with the extender element to urge the plunger toward the spring retainer, wherein the extender element includes a counter-bore to couple the extender element to the plunger.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: December 31, 2019
    Assignee: Cummins Inc.
    Inventors: Anthony A. Shaull, Lester L. Peters, Brian M. Watson, Roberto M. Munoz
  • Patent number: 10487785
    Abstract: A system for preventing rotation of a tappet includes a tappet having an outer casing and a central axis which is configured to reciprocate linearly along the central axis. The outer casing includes a flat portion having a length along the central axis and having a width. Additionally, the system includes a lock bar fixed in position relative to the linear oscillation of the outer casing. The lock bar is positioned in proximity to the flat portion of the outer casing. Upon rotation of the outer casing about the central axis, the lock bar is configured to come into contact with the cuter casing and inhibit additional rotation of the outer casing.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: November 26, 2019
    Assignee: Cummins Inc.
    Inventor: Anthony A. Shaull
  • Publication number: 20190293039
    Abstract: A fluid injector assembly extending along a longitudinal axis comprising a housing, and an injector positioned within the housing, the injector comprising a injector body having an interior cavity, a plunger positioned within the interior cavity and comprising a plunger body, a fluid delivery passage along at least a portion of the plunger body, and a plunger tip positioned at a downstream end of the plunger body, the fluid delivery passage comprising a longitudinal passage and at least one internal swirl passage, and the internal swirl passage being angled relative to the longitudinal axis and extending from the longitudinal passage to an opening upstream of the plunger tip, and a nozzle positioned at a downstream end of the injector body and including at least one nozzle passage, fluid being delivered from an upstream end of the injector to the at least one nozzle passage through the fluid delivery passage.
    Type: Application
    Filed: May 16, 2016
    Publication date: September 26, 2019
    Inventors: Anthony Shaull, David L. Buchanan, Lester L. Peters, Bradlee J. Stroia, William D. Daniel
  • Publication number: 20180180007
    Abstract: The present disclosure generally relates to a pumping element of a fuel pump for an internal combustion engine wherein the pumping element comprises a first flow chamber; a second flow chamber in fluid connection with the first flow chamber, the second flow chamber including a shoulder; a check valve including a first insert and a second insert, the first insert being movable between a first position wherein the first insert forms a seal that inhibits fluid flow between the first and second flow chambers and a second position wherein the first insert permits fluid flow between the first and second flow chambers, the second insert being inserted into the second flow chamber to an extent limited by the shoulder; and a spring having a first end engaging the first insert and a second end engaging the second insert; wherein the first insert moves from the first position to the second position against a biasing force of the spring in response to pressurized fluid in the first flow chamber.
    Type: Application
    Filed: May 15, 2015
    Publication date: June 28, 2018
    Applicant: CUMMINS INC.
    Inventors: Anthony A. Shaull, Tamas Rauznitz, Brian M. Watson, Patrick D. Chasteen, Luke Allen Jones
  • Publication number: 20180179938
    Abstract: An injector includes a needle and a body. The needle is configured to receive fluid from a fluid supply and operable between a first position, in which the fluid is not provided to a target, and a second position, in which the fluid is provided to the target. The needle includes a first needle bore, a second needle bore, and a first connector. The first needle bore is configured to receive fluid from the fluid supply. The second needle bore is aligned with the first needle bore and configured to provide fluid to the fluid supply. The first connector is in fluid communication with the second needle bore. The body includes an end, a first body bore, and a second body bore. The first body bore is configured to receive the needle. The second body bore is positioned to be contiguous with the end.
    Type: Application
    Filed: December 19, 2017
    Publication date: June 28, 2018
    Applicant: Cummins Emission Solutions Inc.
    Inventors: Anthony A. Shaull, Bradlee J. Stroia, Stephen M. Holl, Richard Davis Thomas, Michael Hays
  • Publication number: 20180171949
    Abstract: A fuel pump for an internal combustion engine is provided comprising a barrel including a central bore having a longitudinal axis, a plunger disposed partially in the central bore and movable along the longitudinal axis, a spring retainer, a first coil spring having a proximal end in contact with a first section of the barrel and a distal end in contact with the spring retainer to urge the spring retainer into engagement with a tappet assembly, an extender element coupled to the plunger, and a second coil spring having a proximal end in contact with a second section of the barrel and a distal end in contact with the extender element to urge the plunger toward the spring retainer, wherein the extender element includes a counter-bore to couple the extender element to the plunger.
    Type: Application
    Filed: May 14, 2015
    Publication date: June 21, 2018
    Applicant: CUMMINS INC.
    Inventors: Anthony A. Shaull, Lester L. Peters, Brian M. Watson, Roberto M. Munoz
  • Publication number: 20180156175
    Abstract: The present disclosure generally relates to a pumping element of a fuel pump for an internal combustion engine wherein the pumping element comprises a pumping chamber and a check valve assembly having a first insert including a passage in flow communication with a fuel outlet, and a second insert being disposed adjacent the pumping chamber, the second insert including a bore in flow communication with a fuel inlet, a plurality of through holes in flow communication with the pumping chamber, and an inlet check valve plunger disposed in the bore for movement between an opened position wherein inlet fuel from the fuel inlet flows past the inlet check valve plunger through the plurality of through holes to the pumping chamber and a closed position wherein outlet fuel from the pumping chamber flows through the plurality of through holes past the inlet check valve plunger to the passage of the first insert.
    Type: Application
    Filed: December 15, 2015
    Publication date: June 7, 2018
    Applicant: CUMMINS INC.
    Inventors: Anthony A. Shaull, Tunji Adejumo, Luke Allen Jones, Yip Kwok, John D. Lane, David M. Rix, Wesley R. Thayer
  • Publication number: 20180135578
    Abstract: A system for preventing rotation of a tappet includes a tappet having an outer casing and a central axis which is configured to reciprocate linearly along the central axis. The outer casing includes a flat portion having a length along the central axis and having a width. Additionally, the system includes a lock bar fixed in position relative to the linear oscillation of the outer casing. The lock bar is positioned in proximity to the flat portion of the outer casing. Upon rotation of the outer casing about the central axis, the lock bar is configured to come into contact with the cuter casing and inhibit additional rotation of the outer casing.
    Type: Application
    Filed: March 31, 2016
    Publication date: May 17, 2018
    Inventor: Anthony A. Shaull
  • Publication number: 20170298887
    Abstract: Fueling systems and methods are disclosed. Various fueling systems may comprise a single fuel pump configured to supply fuel to a first fuel rail at a first fuel pressure along a first fuel circuit and configured to supply fuel to a second fuel rail at a second fuel pressure along a second fuel circuit, wherein the first fuel rail and second fuel rail are arranged in parallel, and the first fuel circuit is independent of the second fuel circuit.
    Type: Application
    Filed: April 13, 2016
    Publication date: October 19, 2017
    Inventors: Lester L. Peters, Bradlee J. Stroia, Anthony Shaull, Rodney J. Hemmerlein, Richard Davis Thomas
  • Publication number: 20170254237
    Abstract: Systems and methods including spacers comprising a first face configured to engage with a cam shaft, a second face, and a third face operationally coupled to the first face and the second face, wherein the third face is configured to displace a lubricating fluid and permit rotation of the cam shaft are disclosed.
    Type: Application
    Filed: March 1, 2016
    Publication date: September 7, 2017
    Inventors: Anthony Shaull, Rodney J. Hemmerlein, Richard Davis Thomas
  • Patent number: 9512836
    Abstract: A high-pressure fuel pump for an internal combustion engine. The high-pressure fuel pump includes an improved configuration that beneficially simplifies certain features of the high-pressure fuel pump. The fuel pump possesses an inlet check valve positioned along an inlet fuel circuit and an outlet fuel circuit of the high-pressure pump that provides a path for a low-pressure inlet fuel flow to and a path for a high-pressure output fuel flow from a pumping chamber of the fuel pump. Because of the configuration of the inlet check valve and the outlet check valve, the complexity of high-pressure fuel pump is beneficially reduced, decreasing the cost of components and assembly and improving the life and reliability of high-pressure fuel pump.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: December 6, 2016
    Assignee: Cummins Inc.
    Inventors: Anthony A. Shaull, Wesley R. Thayer
  • Patent number: 9464631
    Abstract: A high-pressure fuel pump for an internal combustion engine. The high-pressure fuel pump includes an improved configuration that beneficially simplifies certain features of the high-pressure fuel pump. The fuel pump possesses an inlet check valve positioned along an inlet fuel circuit and an outlet fuel circuit of the high-pressure pump that provides a path for a low-pressure inlet fuel flow to and a path for a high-pressure output fuel flow from a pumping chamber of the fuel pump. Because of the configuration of the inlet check valve and the outlet check valve, the complexity of high-pressure fuel pump is beneficially reduced, decreasing the cost of components and assembly and improving the life and reliability of high-pressure fuel pump.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: October 11, 2016
    Assignee: CUMMINS INC.
    Inventors: Anthony A. Shaull, Wesley R. Thayer
  • Publication number: 20160138586
    Abstract: A fuel pump is disclosed wherein a substantially cylindrical plunger bore is provided with an annular drain groove fluidically coupled to a drain duct. A pump plunger is driven by a drive system located in a separate mechanical compartment that holds a reservoir of lubricating oil. An annular seal is provided adjacent the drain groove substantially at the end of the bore and retained in position by a seal support. Exemplary embodiments provide the drain groove and seal as being positioned immediately adjacent one another so that the seal forms a lower wall of the drain groove.
    Type: Application
    Filed: October 5, 2015
    Publication date: May 19, 2016
    Inventors: John D. Crofts, Scott R. Simmons, Wesley R. Thayer, Bela Doszpoly, David M. Rix, Anthony A. Shaull, David L. Buchanan
  • Patent number: 9151289
    Abstract: A fuel pump is disclosed wherein a substantially cylindrical plunger bore is provided with an annular drain groove fluidically coupled to a drain duct. A pump plunger is driven by a drive system located in a separate mechanical compartment that holds a reservoir of lubricating oil. An annular seal is provided adjacent the drain groove substantially at the end of the bore and retained in position by a seal support. Exemplary embodiments provide the drain groove and seal as being positioned immediately adjacent one another so that the seal forms a lower wall of the drain groove.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: October 6, 2015
    Assignee: Cummins Inc.
    Inventors: John D. Crofts, Scott R. Simmons, Wesley R. Thayer, Bela Doszpoly, David M. Rix, Anthony A. Shaull, David L. Buchanan
  • Publication number: 20150275892
    Abstract: A high-pressure fuel pump for an internal combustion engine is described. The high-pressure fuel pump includes an improved configuration that beneficially simplifies certain features of the high-pressure fuel pump. More specifically, the disclosure provides for an inlet check valve positioned along an inlet fuel circuit and an outlet fuel circuit of the high-pressure pump that provides a path for a low-pressure inlet fuel flow to and a path for a high-pressure output fuel flow from a pumping chamber of the fuel pump. Because of the configuration of the inlet check valve and the outlet check valve, the complexity of high-pressure fuel pump is beneficially reduced, decreasing the cost of components and assembly and improving the life and reliability of high-pressure fuel pump.
    Type: Application
    Filed: June 15, 2015
    Publication date: October 1, 2015
    Applicant: Cummins Inc.
    Inventors: Anthony A. SHAULL, Wesley R. THAYER
  • Patent number: 9086041
    Abstract: A fuel injector includes a piezoelectric actuation mechanism and a sensor configuration to measure the condition of the actuation mechanism as well as an associated fuel rail. The sensor configuration includes a piezoelectric sensor with an output signal with significantly reduced distortion that accurately reflects control signals provided to the piezoelectric actuation mechanism.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: July 21, 2015
    Assignee: CUMMINS INTELLECTUAL PROPERTY, INC.
    Inventors: Syed S. Jalal, Douglas W. Memering, Richard E. Reisinger, Edward B. Manring, Jesus Carmona-Valdes, Anthony A. Shaull, Shankar C. Venkataraman, William D. Daniel, Viktor K. Walter, Lawrence C. Melton
  • Patent number: 8863727
    Abstract: This disclosure provides a fuel injector system and method in which the timing of events in during period of fuel injection of a piezoelectric-actuated fuel injector are estimated based on sensed forces within the injector. The force sensor is positioned between a piezoelectric actuator and a hydraulic link assembly mechanically coupled with the piezoelectric actuator, and the force sensor operable to output a signal corresponding to forces between the piezoelectric actuator and the hydraulic link assembly. From information contained in the sensor output signal, timing in the injection period of at least one fueling characteristic based can be estimated to allow for adjusting fuel injector characteristics to compensate for variations affecting fuel injection, such as manufacturing tolerances, environmental conditions, and deterioration/wear.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: October 21, 2014
    Assignee: Cummins Intellectual Property, Inc.
    Inventors: Syed S. Jalal, Douglas W. Memering, Richard E. Reisinger, Edward Benjamin Manring, Jesus Carmona-Valdes, Anthony A. Shaull, Shankar Venkataraman, William David Daniel
  • Publication number: 20140193281
    Abstract: A high-pressure fuel pump for an internal combustion engine is described. The high-pressure fuel pump includes an improved configuration that beneficially simplifies certain features of the high-pressure fuel pump. More specifically, the disclosure provides for an inlet check valve positioned along an inlet fuel circuit and an outlet fuel circuit of the high-pressure pump that provides a path for a low-pressure inlet fuel flow to and a path for a high-pressure output fuel flow from a pumping chamber of the fuel pump. Because of the configuration of the inlet check valve and the outlet check valve, the complexity of high-pressure fuel pump is beneficially reduced, decreasing the cost of components and assembly and improving the life and reliability of high-pressure fuel pump.
    Type: Application
    Filed: January 8, 2013
    Publication date: July 10, 2014
    Applicant: CUMMINS INC.
    Inventors: Anthony A. SHAULL, Wesley R. THAYER