Patents by Inventor David L. Lueders

David L. Lueders 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).

  • Internal combustion engine with dual-channel cylinder liner cooling
    Patent number: 11549459
    Abstract: A cylinder liner is provided that includes a cylinder bore capable of housing a piston, a top end having an annular flange, a first cylindrical section, a second cylindrical section, and an annular ridge that separates the first cylindrical section and the second cylindrical section. When employed in an a liner bore of an engine bock, the cylinder liner provides for two channels that allow for coolant to be supplied to the cylinder liner.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: January 10, 2023
    Assignee: Caterpillar Inc.
    Inventors: Allen Yao Chen, Aaron Gary Heintz, Jason Lee Van Farowe, Thomas L. Atwell, David L. Lueders, John W. Milem, Suresh Babu Chennagowni, Khairul Hassan
  • Internal combustion engine with top-down cooling
    Patent number: 11149679
    Abstract: An internal combustion engine having an engine block and one or more cylinder heads. The engine block houses a plurality of cylinder liners and includes a cylinder liner coolant jacket below an upper planar surface of the engine block and in fluid communication with the plurality of cylinder liners. The one or more cylinder heads are attached to the upper planar surface of the engine block and each of the one or more cylinder heads including one or more cylinder head coolant jackets and one or more downward coolant passages extending from the one or more cylinder head coolant jackets to the cylinder liner coolant jacket for delivering coolant from the one or more cylinder head coolant jackets to the cylinder liner coolant jacket.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: October 19, 2021
    Assignee: Caterpillar Inc.
    Inventors: Allen Yao Chen, Aaron Gary Heintz, Jason Lee Van Farowe, Thomas L. Atwell, David L. Lueders, John W. Milem, Phani Chandar Reddy Konatham, Suresh Babu Chennagowni, Khairul Hassan, Parthipan Subramanian
  • INTERNAL COMBUSTION ENGINE WITH DUAL-CHANNEL CYLINDER LINER COOLING
    Publication number: 20210254578
    Abstract: A cylinder liner is provided that includes a cylinder bore capable of housing a piston, a top end having an annular flange, a first cylindrical section, a second cylindrical section, and an annular ridge that separates the first cylindrical section and the second cylindrical section. When employed in an a liner bore of an engine bock, the cylinder liner provides for two channels that allow for coolant to be supplied to the cylinder liner.
    Type: Application
    Filed: February 14, 2020
    Publication date: August 19, 2021
    Applicant: Caterpillar Inc.
    Inventors: Allen Yao Chen, Aaron Gary Heintz, Jason Lee Van Farowe, Thomas L. Atwell, David L. Lueders, John W. Milem, Suresh Babu Chennagowni, Khairul Hassan
  • INTERNAL COMBUSTION ENGINE WITH TOP-DOWN COOLING
    Publication number: 20210254577
    Abstract: An internal combustion engine having an engine block and one or more cylinder heads. The engine block houses a plurality of cylinder liners and includes a cylinder liner coolant jacket below an upper planar surface of the engine block and in fluid communication with the plurality of cylinder liners. The one or more cylinder heads are attached to the upper planar surface of the engine block and each of the one or more cylinder heads including one or more cylinder head coolant jackets and one or more downward coolant passages extending from the one or more cylinder head coolant jackets to the cylinder liner coolant jacket for delivering coolant from the one or more cylinder head coolant jackets to the cylinder liner coolant jacket.
    Type: Application
    Filed: February 14, 2020
    Publication date: August 19, 2021
    Applicant: Caterpillar Inc.
    Inventors: Allen Yao Chen, Aaron Gary Heintz, Jason Lee Van Farowe, Thomas L. Atwell, David L. Lueders, John W. Milem, Phani Chandar Reddy Konatham, Suresh Babu Chennagowni, Khairul Hassan, Parthipan Subramanian