Patents by Inventor Craig A. Bettenhausen

Craig A. Bettenhausen 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).

  • Electronic trim for a variable delivery pump in a hydraulic system for an engine
    Publication number: 20060120877
    Abstract: Electronically controlled variable delivery pumps produce output based upon a control signal generated by an electronic control module. The electronic control module includes programming that acknowledges that each pump may have performance characteristics that deviate from a hypothetical nominal pump. Actual pump performance characteristics are then programmed into the electronic control module so that pump control signals are customized or electronically trimmed to suit the performance characteristics of that individual pump. The performance characteristics of the individual pump are gained through testing. The electronic pump trimming strategy of the present invention is particularly applicable to hydraulic systems, such as fuel injection systems, used in internal combustion engines.
    Type: Application
    Filed: November 4, 2005
    Publication date: June 8, 2006
    Inventors: Craig Bettenhausen, Bryan Nelson, Larry Mitzelfelt
  • Electronic trim for a variable delivery pump in a hydraulic system for an engine
    Patent number: 6986646
    Abstract: Electronically controlled variable delivery pumps produce output based upon a control signal generated by an electronic control module. The electronic control module includes programming that acknowledges that each pump may have performance characteristics that deviate from a hypothetical nominal pump. Actual pump performance characteristics are then programmed into the electronic control module so that pump control signals are customized or electronically trimmed to suit the performance characteristics of that individual pump. The performance characteristics of the individual pump are gained through testing. The electronic pump trimming strategy of the present invention is particularly applicable to hydraulic systems, such as fuel injection systems, used in internal combustion engines.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: January 17, 2006
    Assignee: Caterpillar Inc.
    Inventors: Craig A. Bettenhausen, Bryan E. Nelson, Larry R. Mitzelfelt, Jr.
  • Electronic trim for a variable delivery pump in a hydraulic system for an engine
    Publication number: 20030194326
    Abstract: Electronically controlled variable delivery pumps produce output based upon a control signal generated by an electronic control module. The electronic control module includes programming that acknowledges that each pump may have performance characteristics that deviate from a hypothetical nominal pump. Actual pump performance characteristics are then programmed into the electronic control module so that pump control signals are customized or electronically trimmed to suit the performance characteristics of that individual pump. The performance characteristics of the individual pump are gained through testing. The electronic pump trimming strategy of the present invention is particularly applicable to hydraulic systems, such as fuel injection systems, used in internal combustion engines.
    Type: Application
    Filed: April 12, 2002
    Publication date: October 16, 2003
    Inventors: Craig A. Bettenhausen, Bryan E. Nelson, Larry R. Mitzelfelt