Patents by Inventor Matthew John Liening

Matthew John Liening 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).

  • EGR flow sensor for an engine
    Patent number: 8938961
    Abstract: A disclosed method of operating an engine may include discharging exhaust gas from at least one combustion chamber of the engine. The method may also include recirculating at least a portion of the exhaust gas to the at least one combustion chamber through an EGR system, including directing at least a portion of the exhaust gas through an EGR duct. Additionally, the method may include sensing pressure in a portion of the EGR duct by directing the pressure to a first pressure sensor via a first sensor passage having a first end connected to a portion of the EGR duct and a second end connected to the first pressure sensor, while maintaining a temperature of gas in the first sensor passage adjacent the second end at a bulk temperature of at least about 75 percent of a bulk temperature of gas in the first sensor passage at the first end.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: January 27, 2015
    Assignee: Caterpillar Inc.
    Inventors: Matthew Edward Leustek, Justin Werner McMenamy, Jeffrey S. Morris, Matthew John Liening, Joseph John Stabnik, William Lyle Schell
  • EGR with Temperature Controlled Venturi Flow Meter
    Publication number: 20130298882
    Abstract: A flow meter that may be used in an exhaust gas recirculation (EGR) system is disclosed. The EGR system may be part of an internal combustion engine or other power source. The flow meter includes a venturi that includes a body that defines an inlet section, a throat and a diverging outlet section. The flow meter also includes a sensor coupled to the venturi via a plurality of pressure passages.
    Type: Application
    Filed: May 14, 2012
    Publication date: November 14, 2013
    Applicant: CATERPILLAR, INC.
    Inventors: Joseph John Stabnik, Matthew Edward Leustek, Matthew John Liening, Jeffrey Scott Morris
  • EGR FLOW SENSOR FOR AN ENGINE
    Publication number: 20130167811
    Abstract: A method of operating an engine is disclosed. The method may include discharging exhaust gas from at least one combustion chamber of the engine. The method may also include recirculating at least a portion of the exhaust gas to the at least one combustion chamber through an EGR system, including directing at least a portion of the exhaust gas through an EGR duct. Additionally, the method may include sensing pressure in a portion of the EGR duct by directing the pressure to a first pressure sensor via a first sensor passage having a first end connected to a portion of the EGR duct and a second end connected to the first pressure sensor, while maintaining a temperature of gas in the first sensor passage adjacent the second end at a bulk temperature of at least about 75 percent of a bulk temperature of gas in the first sensor passage at the first end.
    Type: Application
    Filed: December 30, 2011
    Publication date: July 4, 2013
    Applicant: Caterpillar Inc.
    Inventors: Matthew Edward Leustek, Justin Werner McMenamy, Jeffrey S. Morris, Matthew John Liening, Joseph John Stabnik, William Lyle Schell