Patents by Inventor Daniel M. Schum

Daniel M. Schum 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).

  • EXHUAST CATALYST LIGHT-OFF IN AN OPPOSED-PISTON ENGINE
    Publication number: 20240060455
    Abstract: In an opposed-piston engine which includes a catalytic aftertreatment device in its exhaust system an exhaust gas condition indicating a catalyst temperature of the aftertreatment device is monitored. When the catalyst temperature is near or below a light-off temperature, a catalyst light-off procedure is executed to elevate the temperature of the catalyst.
    Type: Application
    Filed: October 26, 2023
    Publication date: February 22, 2024
    Applicant: ACHATES POWER, INC.
    Inventors: AHMAD GHAZI, DANIEL M. SCHUM, FABIEN G. REDON, SAMRAT M. PATIL
  • Exhaust catalyst light-off in an opposed-piston engine
    Patent number: 11815042
    Abstract: In an opposed-piston engine which includes a catalytic aftertreatment device in its exhaust system an exhaust gas condition indicating a catalyst temperature of the aftertreatment device is monitored. When the catalyst temperature is near or below a light-off temperature, a catalyst light-off procedure is executed to elevate the temperature of the catalyst.
    Type: Grant
    Filed: January 4, 2022
    Date of Patent: November 14, 2023
    Assignee: Achates Power, Inc.
    Inventors: Ahmad Ghazi, Daniel M. Schum, Fabien G. Redon, Samrat M. Patil
  • EXHAUST CATALYST LIGHT-OFF IN AN OPPOSED-PISTON ENGINE
    Publication number: 20220128012
    Abstract: In an opposed-piston engine which includes a catalytic aftertreatment device in its exhaust system an exhaust gas condition indicating a catalyst temperature of the aftertreatment device is monitored. When the catalyst temperature is near or below a light-off temperature, a catalyst light-off procedure is executed to elevate the temperature of the catalyst.
    Type: Application
    Filed: January 4, 2022
    Publication date: April 28, 2022
    Applicant: ACHATES POWER, INC.
    Inventors: Ahmad Ghazi, DANIEL M. SCHUM, FABIEN G. REDON, SAMRAT M. PATIL, I
  • Exhaust catalyst light-off in an opposed-piston engine
    Patent number: 11242809
    Abstract: In an opposed-piston engine which includes a catalytic aftertreatment device in its exhaust system an exhaust gas condition indicating a catalyst temperature of the aftertreatment device is monitored. When the catalyst temperature is near or below a light-off temperature, a catalyst light-off procedure is executed to elevate the temperature of the catalyst.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: February 8, 2022
    Assignee: Achates Power, Inc.
    Inventors: Ahmad Ghazi, Daniel M. Schum, Fabien G. Redon, Samrat M. Patil
  • EXHAUST CATALYST LIGHT-OFF IN AN OPPOSED-PISTON ENGINE
    Publication number: 20200347791
    Abstract: In an opposed-piston engine which includes a catalytic aftertreatment device in its exhaust system an exhaust gas condition indicating a catalyst temperature of the aftertreatment device is monitored. When the catalyst temperature is near or below a light-off temperature, a catalyst light-off procedure is executed to elevate the temperature of the catalyst.
    Type: Application
    Filed: May 1, 2019
    Publication date: November 5, 2020
    Applicant: ACHATES POWER, INC.
    Inventors: Ahmad GHAZI, Daniel M. SCHUM, Fabien G. REDON, Samrat M. PATIL
  • Mass airflow sensor monitoring using supercharger airflow characteristics in an opposed-piston engine
    Patent number: 10598104
    Abstract: In an air handling system of an opposed-piston engine, mass airflow sensor operation is monitored by comparing mass airflow measured by the sensor with mass airflow through a supercharger.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: March 24, 2020
    Assignee: ACHATES POWER, INC.
    Inventors: Vadiraj Kulkarni, Daniel M. Schum
  • MASS AIRFLOW SENSOR MONITORING USING SUPERCHARGER AIRFLOW CHARACTERISTICS IN AN OPPOSED-PISTON ENGINE
    Publication number: 20180223750
    Abstract: In an air handling system of an opposed-piston engine, mass airflow sensor operation is monitored by comparing mass airflow measured by the sensor with mass airflow through a supercharger.
    Type: Application
    Filed: February 3, 2017
    Publication date: August 9, 2018
    Applicant: ACHATES POWER, INC.
    Inventors: VADIRAJ KULKARNI, DANIEL M. SCHUM
  • Maintaining EGR flow in a uniflow-scavenged, two-stroke cycle, opposed-piston engine
    Patent number: 9926867
    Abstract: In a turbocharged, uniflow-scavenged, two-stroke cycle, opposed-piston engine, transient changes in engine operating conditions initiate modes of air handling operation during which reversal of EGR flow in a high pressure EGR loop of the air handling system is prevented by operating one or more air handling devices to increase resistance to exhaust flow in the engine.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: March 27, 2018
    Assignee: ACHATES POWER, INC.
    Inventors: Daniel M. Schum, Arunandan Sharma