Patents by Inventor Ricky Sundkvist

Ricky Sundkvist 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).

  • Adjustment of ignition timing at cut out
    Patent number: 9938955
    Abstract: An internal combustion engine (1) may include a combustion chamber (41) into which a mixture (40) of fuel and air is supplied, a spark plug (50) disposed proximate to the combustion chamber (41) to ignite the mixture (40) by generating a spark such that ignition of the mixture drives a piston (6) operably coupled to a crank portion (12) of the engine (1), a speed sensor (102) configured to determine engine speed, and an electronic control unit (100) configured to control operation of the spark plug (50). The electronic control unit (100) may be configured to initiate a speed limitation operation in response to engine speed reaching a cut out speed threshold and to control ignition timing within an operating band (320) of ignition angles prior to engine speed reaching the cut out speed threshold. The speed limitation operation may include skipping application of sparks.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: April 10, 2018
    Assignee: HUSQVARNA AB
    Inventors: Johan Assargård, Ricky Sundkvist, Stefan Wixe, Martin Axelsson
  • ADJUSTMENT OF IGNITION TIMING AT CUT OUT
    Publication number: 20160237977
    Abstract: An internal combustion engine (1) may include a combustion chamber (41) into which a mixture (40) of fuel and air is supplied, a spark plug (50) disposed proximate to the combustion chamber (41) to ignite the mixture (40) by generating a spark such that ignition of the mixture drives a piston (6) operably coupled to a crank portion (12) of the engine (1), a speed sensor (102) configured to determine engine speed, and an electronic control unit (100) configured to control operation of the spark plug (50). The electronic control unit (100) may be configured to initiate a speed limitation operation in response to engine speed reaching a cut out speed threshold and to control ignition timing within an operating band (320) of ignition angles prior to engine speed reaching the cut out speed threshold. The speed limitation operation may include skipping application of sparks.
    Type: Application
    Filed: September 22, 2014
    Publication date: August 18, 2016
    Inventors: Johan Assargård, Ricky Sundkvist, Stefan Wixe, Martin Axelsson
  • Harness for portable tools
    Patent number: D502803
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: March 15, 2005
    Assignee: Aktiebolaget Electrolux
    Inventors: Mikael Racov, Ricky Sundkvist, Evalena Sandberg
  • Harness for portable tools
    Patent number: D503276
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: March 29, 2005
    Assignee: Aktiebolaget Electrolux
    Inventors: Mikael Racov, Ricky Sundkvist, Evalena Sandberg