Patents by Inventor Karen E. Bevan

Karen E. Bevan 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).

  • Patent number: 8910614
    Abstract: A combustion system comprises a supercharger with an operating range from an idled condition up to a maximum rotations per minute (RPM) of its drive shaft. An engine in the system has an engine operating range from an idled condition up to a maximum RPM of its crank shaft, the engine having at least one airflow demand for each RPM in the engine operating range for providing peak torque output. A continuously variable transmission (CVT) is connected to the drive shaft for transmitting a variable amount of rotational energy to operate the supercharger. The control system controls the transmitting of the CVT based on the at least one airflow demand for each RPM in the engine operating range such that the supercharger variably pumps air across the operating range as the engine operates across the engine operating range.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: December 16, 2014
    Assignee: Eaton Corporation
    Inventors: Karen E. Bevan, Daniel Robert Ouwenga
  • Patent number: 8763586
    Abstract: An engine system includes a throttle valve configured to variably open and close to selectively restrict a volume of air flow. The engine system also includes a supercharger comprising an air inlet, an air outlet, a rotatable drive shaft and rotors associated with the drive shaft, wherein the supercharger is sized to have a flow rate that substantially prevents backwards leaking of air flow. The engine system further includes a combustion engine comprising combustion chambers and an associated rotatable crank shaft and a continuously variable transmission (CVT) configured to variably transfer rotational energy between the drive shaft and the crank shaft.
    Type: Grant
    Filed: May 27, 2013
    Date of Patent: July 1, 2014
    Assignee: Eaton Corporation
    Inventors: Daniel Robert Ouwenga, Karen E. Bevan
  • Publication number: 20140123939
    Abstract: A combustion system comprises a supercharger with an operating range from an idled condition up to a maximum rotations per minute (RPM) of its drive shaft. An engine in the system has an engine operating range from an idled condition up to a maximum RPM of its crank shaft, the engine having at least one airflow demand for each RPM in the engine operating range for providing peak torque output. A continuously variable transmission (CVT) is connected to the drive shaft for transmitting a variable amount of rotational energy to operate the supercharger. The control system controls the transmitting of the CVT based on the at least one airflow demand for each RPM in the engine operating range such that the supercharger variably pumps air across the operating range as the engine operates across the engine operating range.
    Type: Application
    Filed: January 14, 2014
    Publication date: May 8, 2014
    Applicant: Eaton Corporation
    Inventors: Karen E. Bevan, Daniel Robert Ouwenga
  • Publication number: 20130255627
    Abstract: An engine system includes a throttle valve configured to variably open and close to selectively restrict a volume of air flow. The engine system also includes a supercharger comprising an air inlet, an air outlet, a rotatable drive shaft and rotors associated with the drive shaft, wherein the supercharger is sized to have a flow rate that substantially prevents backwards leaking of air flow. The engine system further includes a combustion engine comprising combustion chambers and an associated rotatable crank shaft and a continuously variable transmission (CVT) configured to variably transfer rotational energy between the drive shaft and the crank shaft.
    Type: Application
    Filed: May 27, 2013
    Publication date: October 3, 2013
    Applicant: Eaton Corporation
    Inventors: Daniel Robert Ouwenga, Karen E. Bevan
  • Patent number: 8469000
    Abstract: An engine system includes a throttle valve configured to variably open and close to selectively restrict a volume of air flow. The engine system also includes a supercharger comprising an air inlet, an air outlet, a rotatable drive shaft and rotors associated with the drive shaft, wherein the supercharger is sized to have a flow rate that substantially prevents backwards leaking of air flow. The engine system further includes a combustion engine comprising combustion chambers and an associated rotatable crank shaft and a continuously variable transmission (CVT) configured to variably transfer rotational energy between the drive shaft and the crank shaft.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: June 25, 2013
    Assignee: Eaton Corporation
    Inventors: Daniel Robert Ouwenga, Karen E. Bevan
  • Publication number: 20110203550
    Abstract: An engine system includes a throttle valve configured to variably open and close to selectively restrict a volume of air flow. The engine system also includes a supercharger comprising an air inlet, an air outlet, a rotatable drive shaft and rotors associated with the drive shaft, wherein the supercharger is sized to have a flow rate that substantially prevents backwards leaking of air flow. The engine system further includes a combustion engine comprising combustion chambers and an associated rotatable crank shaft and a continuously variable transmission (CVT) configured to variably transfer rotational energy between the drive shaft and the crank shaft.
    Type: Application
    Filed: February 24, 2010
    Publication date: August 25, 2011
    Applicant: EATON CORPORATION
    Inventors: Daniel Ouwenga, Karen E. Bevan