Patents by Inventor Randy E. Herold

Randy E. Herold 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).

  • Air handling control for opposed-piston engines with uniflow scavenging
    Patent number: 9708989
    Abstract: In an air handling system of a uniflow-scavenged, two-stroke cycle opposed-piston engine, one or more engine operating state parameters are sensed, numerical values of air handling parameters based on trapped conditions in a cylinder of the engine at the last port closing of an engine operating cycle are determined in response to the sensed parameters, the numerical values are evaluated, and one or more of the numerical values is adjusted in response to the evaluation. The adjusted numerical values are used to control charge air flow and EGR flow in the air handling system.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: July 18, 2017
    Assignee: ACHATES POWER, INC.
    Inventors: Randy E. Herold, Nishit Nagar, Fabien G. Redon
  • Air handling control for opposed-piston engines with uniflow scavenging
    Patent number: 9695763
    Abstract: In an air handling system of a uniflow-scavenged, two-stroke cycle opposed-piston engine, one or more engine operating state parameters are sensed, numerical values of air handling parameters based on trapped conditions in a cylinder of the engine at the last port closing of an engine operating cycle are determined in response to the sensed parameters, the numerical values are evaluated, and one or more of the numerical values is adjusted in response to the evaluation. The adjusted numerical values are used to control charge air flow and EGR flow in the air handling system.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: July 4, 2017
    Assignee: ACHATES POWER, INC.
    Inventors: Randy E. Herold, Nishit Nagar, Fabien G. Redon
  • Air Handling Control For Opposed-Piston Engines With Uniflow Scavenging
    Publication number: 20160076468
    Abstract: In an air handling system of a uniflow-scavenged, two-stroke cycle opposed-piston engine, one or more engine operating state parameters are sensed, numerical values of air handling parameters based on trapped conditions in a cylinder of the engine at the last port closing of an engine operating cycle are determined in response to the sensed parameters, the numerical values are evaluated, and one or more of the numerical values is adjusted in response to the evaluation. The adjusted numerical values are used to control charge air flow and EGR flow in the air handling system.
    Type: Application
    Filed: November 20, 2015
    Publication date: March 17, 2016
    Applicant: ACHATES POWER, INC.
    Inventors: Randy E. Herold, NISHIT NAGAR, FABIEN G. REDON
  • Air Handling Control For Opposed-Piston Engines With Uniflow Scavenging
    Publication number: 20160053674
    Abstract: In an air handling system of a uniflow-scavenged, two-stroke cycle opposed-piston engine, one or more engine operating state parameters are sensed, numerical values of air handling parameters based on trapped conditions in a cylinder of the engine at the last port closing of an engine operating cycle are determined in response to the sensed parameters, the numerical values are evaluated, and one or more of the numerical values is adjusted in response to the evaluation. The adjusted numerical values are used to control charge air flow and EGR flow in the air handling system.
    Type: Application
    Filed: November 2, 2015
    Publication date: February 25, 2016
    Applicant: ACHATES POWER, INC.
    Inventors: RANDY E. HEROLD, NISHIT NAGAR, FABIEN G. REDON
  • Air handling control for opposed-piston engines with uniflow scavenging
    Patent number: 9206751
    Abstract: In an air handling system of a uniflow-scavenged, two-stroke cycle opposed-piston engine, one or more engine operating state parameters are sensed, numerical values of air handling parameters based on trapped conditions in a cylinder of the engine at the last port closing of an engine operating cycle are determined in response to the sensed parameters, the numerical values are evaluated, and one or more of the numerical values is adjusted in response to the evaluation. The adjusted numerical values are used to control charge air flow and EGR flow in the air handling system.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: December 8, 2015
    Assignee: ACHATES POWER, INC.
    Inventors: Randy E. Herold, Nishit Nagar, Fabien G. Redon
  • Fuel injector support constructions for direct injection opposed-piston engines
    Patent number: 8997710
    Abstract: An opposed-piston internal combustion engine with one or more ported cylinders and uniflow scavenging includes fuel injectors supported at compound angles with respect to the cylinders in order to directly inject spray patterns of fuel in opposing directions through the side walls of the cylinders.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: April 7, 2015
    Assignee: Achates Power, Inc.
    Inventors: Randy E. Herold, Brendan M. Lenski, Fabien G. Redon
  • Air Handling Control for Opposed-Piston Engines with Uniflow Scavenging
    Publication number: 20140373814
    Abstract: In an air handling system of a uniflow-scavenged, two-stroke cycle opposed-piston engine, one or more engine operating state parameters are sensed, numerical values of air handling parameters based on trapped conditions in a cylinder of the engine at the last port closing of an engine operating cycle are determined in response to the sensed parameters, the numerical values are evaluated, and one or more of the numerical values is adjusted in response to the evaluation. The adjusted numerical values are used to control charge air flow and EGR flow in the air handling system.
    Type: Application
    Filed: June 25, 2013
    Publication date: December 25, 2014
    Inventors: Randy E. Herold, Nishit Nagar, Fabien G. Redon
  • Fuel injector support constructions for direct injection opposed-piston engines
    Publication number: 20120080007
    Abstract: An opposed-piston internal combustion engine with one or more ported cylinders and uniflow scavenging includes fuel injectors supported at compound angles with respect to the cylinders in order to directly inject spray patterns of fuel in opposing directions through the side walls of the cylinders.
    Type: Application
    Filed: May 16, 2011
    Publication date: April 5, 2012
    Applicant: Achates Power, Inc.
    Inventors: Randy E. Herold, Brendan M. Lenski, Fabien G. Redon