Patents by Inventor Eric D. Wiebrecht

Eric D. Wiebrecht 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: 11808180
    Abstract: An engine valve actuation system includes a lifter sleeve having a control fluid slot formed therein and extending from an outer sleeve surface to an inner sleeve surface. A valve lifter is movable in a sleeve bore in the lifter sleeve and limited from rotation about a longitudinal axis. The valve lifter includes a hydraulically actuated activation-deactivation switch, and a control fluid port in continuous fluid communication with the control fluid slot.
    Type: Grant
    Filed: February 27, 2023
    Date of Patent: November 7, 2023
    Assignee: Caterpillar Inc.
    Inventors: Jeremy C. Adams, Eric D. Wiebrecht
  • Publication number: 20230139667
    Abstract: A system and method includes a driver component having a first sensor rigidly mounted therewith and configured to provide a first signal indicative of a rotation of the driver component, and a second sensor rigidly mounted relative to the driver component, a driven component, and a flexible coupler disposed between the driver component and the driven component; wherein the second sensor provides a second signal indicative of a rotation of the driven component, and a controller disposed to receive the first signal and the second signal. The controller is configured and operates to calculate a difference between the first signal and the second signal, and infer a torque variation between the driver component and the driven component based primarily on the difference between the first signal and the second signal.
    Type: Application
    Filed: October 29, 2021
    Publication date: May 4, 2023
    Applicant: Caterpillar Inc.
    Inventors: William J. Barnes, Eric D. Wiebrecht
  • Patent number: 11035333
    Abstract: A duct assembly for a fuel injector of an engine includes a base and multiple duct bodies. The base includes a number of spaced apart receptacles. Each receptacle defines a cavity with a receptacle axis, a rotational engagement surface, and an axial engagement surface. The duct bodies are correspondingly secured within the cavities. Each duct body defines an axis and a duct extending along the axis to provide a passage for a fuel jet from the fuel injector. Each duct body defines an axial alignment surface engaging the axial engagement surface of the receptacle in which it is disposed to axially align the duct body along the receptacle axis of the corresponding receptacle.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: June 15, 2021
    Assignee: Caterpillar Inc.
    Inventors: Eric D. Wiebrecht, Kenth I Svensson, Marchione T. Andre
  • Patent number: 10309277
    Abstract: A tank for a dry sump lubrication system for an internal combustion engine is disclosed. The tank includes a body having a first portion, a second portion, and defines an inner chamber. The tank also includes a filter housing integrally formed with the first portion and disposed inside the inner chamber. The filter housing is configured to receive a filter. Further, the body and the filter housing are formed by a blow molding process.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: June 4, 2019
    Assignee: Caterpillar Inc.
    Inventor: Eric D. Wiebrecht
  • Publication number: 20180195422
    Abstract: A tank for a dry sump lubrication system for an internal combustion engine is disclosed. The tank includes a body having a first portion, a second portion, and defines an inner chamber. The tank also includes a filter housing integrally formed with the first portion and disposed inside the inner chamber. The filter housing is configured to receive a filter. Further, the body and the filter housing are formed by a blow molding process.
    Type: Application
    Filed: January 9, 2017
    Publication date: July 12, 2018
    Applicant: Caterpillar Inc.
    Inventor: Eric D. Wiebrecht
  • Patent number: 8966967
    Abstract: A system for determining a health of a bearing associated with a connecting rod is provided. The system includes a sensor associated with the connecting rod and remotely disposed relative to the bearing of the connecting rod. The sensor is configured to generate a signal indicative of a temperature of the bearing. The system includes a controller communicably coupled to the sensor. The controller is configured to receive the signal indicative of the temperature of the bearing. The controller further determines a health of the bearing as a function of the signal of the temperature of the bearing.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: March 3, 2015
    Assignee: Caterpillar Inc.
    Inventors: Eric D. Wiebrecht, Colin P. Garner, Andrew M. Williams, Michael Gore
  • Patent number: 8904856
    Abstract: A system for determining a health of bearing associated with a connecting rod is provided. The system includes an oil collector placed proximate to the connecting rod and configured to receive an oil cast off from side thrust surfaces of the connecting rod during movement of the connecting rod. The system includes a sensor associated with the oil collector and configured to generate a signal indicative of a temperature of the oil cast off from the side thrust surface of the connecting rod. The system also includes a controller communicably coupled to the sensor. The controller is configured to receive the signal indicative of the temperature of the oil cast off from the side thrust surface of the connecting rod. The controller further determines the health of the bearing as a function of the signal of temperature of oil cast off from side thrust surface of the connecting rod.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: December 9, 2014
    Assignee: Caterpillar Inc.
    Inventors: Eric D. Wiebrecht, Ronald P. Maloney
  • Publication number: 20140331754
    Abstract: A system for determining a health of bearing associated with a connecting rod is provided. The system includes an oil collector placed proximate to the connecting rod and configured to receive an oil cast off from side thrust surfaces of the connecting rod during movement of the connecting rod. The system includes a sensor associated with the oil collector and configured to generate a signal indicative of a temperature of the oil cast off from the side thrust surface of the connecting rod. The system also includes a controller communicably coupled to the sensor. The controller is configured to receive the signal indicative of the temperature of the oil cast off from the side thrust surface of the connecting rod. The controller further determines the health of the bearing as a function of the signal of temperature of oil cast off from side thrust surface of the connecting rod.
    Type: Application
    Filed: May 9, 2013
    Publication date: November 13, 2014
    Applicant: Caterpillar Inc.
    Inventors: Eric D. Wiebrecht, Ronald P. Maloney
  • Publication number: 20140331753
    Abstract: A system for determining a health of a bearing associated with a connecting rod is provided. The system includes a sensor associated with the connecting rod and remotely disposed relative to the bearing of the connecting rod. The sensor is configured to generate a signal indicative of a temperature of the bearing. The system includes a controller communicably coupled to the sensor. The controller is configured to receive the signal indicative of the temperature of the bearing. The controller further determines a health of the bearing as a function of the signal of the temperature of the bearing.
    Type: Application
    Filed: May 8, 2013
    Publication date: November 13, 2014
    Applicant: Caterpillar Inc.
    Inventors: Eric D. Wiebrecht, Colin P. Garner, Andrew M. Williams, Michael Gore