Patents by Inventor Peter V. Woon

Peter V. Woon 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: 6408625
    Abstract: An electric power generation system is disclosed, which includes a back-up electric power generator driven by a four-cycle internal combustion engine. The engine includes a plurality of reciprocating cylinders each rotatably coupled to a crankshaft, which drives the electric power generator. The engine also includes a compressor along an intake pathway to deliver pressurized air to the cylinders and a turbine along an exhaust pathway to power the compressor when driven by exhaust discharged from the cylinders. The engine is prepared to accept a generator load by increasing boost pressure provided by the compressor. This increase is accomplished by skip-firing the cylinders in a selected pattern, retarding ignition timing for the cylinders, or a combination of these techniques. A unique skip-fueling control pattern is also disclosed.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: June 25, 2002
    Assignee: Cummins Engine Company, Inc.
    Inventors: Peter V. Woon, Axel O. Zur Loye, Larry J. Brackney, Jay F. Leonard, Eric K. Bradley, Terry M. Vandenberghe, Jacqueline M. Yeager, Julie A. Wagner, Greg A. Moore
  • Patent number: 5890470
    Abstract: A constant horsepower throttle progression control system and method. In order to improve driveability of a vehicle compared to prior art engine controllers, the present invention operates an engine so as to either produce a constant (or nearly constant) output horsepower at all engine speeds for any throttle position, or so as to produce an output horsepower equal to a predetermined percentage of the range between full rated power and motoring horsepower at all engine speeds for any throttle position. The predetermined percentage may or may not be equal to the percentage of full throttle represented by the throttle position, and may or may not be linearly related thereto.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: April 6, 1999
    Assignee: Cummins Engine Company, Inc.
    Inventors: Peter V. Woon, Axel O. zur Loye
  • Patent number: 5617726
    Abstract: EGR induction supercharged or turbocharged internal combustion engine having EGR and EGR cooling in which EGR cooling is obtained through jacket water coolers and/or an air-to-air aftercooler. EGR induction is obtained via either low pressure (ambient) induction to the system intake, or via venturi or passive pump induction into the pressurized intake. Bypassing of the EGR cooler is used to reduce condensation and fouling in the EGR cooler and to provide warmer air to reduce light load and cold ambient hydrocarbon production. A passive or catalyzed particulate trap and crankshaft driven supercharger boosting system are provided to address engine response deterioration and particulate increase problems associated with EGR.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: April 8, 1997
    Assignee: Cummins Engine Company, Inc.
    Inventors: Todd A. Sheridan, A. S. Ghuman, Angie R. May, Rod Radovanovic, John M. Janssen, Peter V. Woon
  • Patent number: 5142868
    Abstract: A turbocompound engine having a power turbine bypass valve and a control module for controlling opening and closing of the bypass valve. The control module opens the bypass valve for various operating conditions, such as at high altitudes, low speed/high load, and transient load conditions for improved engine operation.
    Type: Grant
    Filed: November 30, 1990
    Date of Patent: September 1, 1992
    Assignee: Cummins Engine Company, Inc.
    Inventors: Peter V. Woon, Amarjit Ghuman, Rodoljub Radovanovic, Brian E. Walsham, Steven C. Francis
  • Patent number: 4939466
    Abstract: A diesel engine exhaust system is provided with a particulate trap for collecting the products of incomplete combustion during the engine power cycle. A sensing mechanism including an electrode downstream of the trap and a signal generating circuit provides a positive indication of occurrence of regeneration of the trap. Charged particles generated during regeneration induce a charge of the electrode, that charge activates the signal generating circuit and it, in turn, produces an indication external of the exhaust system that trap regeneration is occurring. That indication can be in the operator's compartment.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: July 3, 1990
    Assignee: Board of Control of Michigan Technological University
    Inventors: John H. Johnson, Peter V. Woon