Patents by Inventor James M. Cleeves

James M. Cleeves 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: 9745915
    Abstract: An internal combustion engine is provided. Facing pistons eliminate a cylinder head, thereby reducing heat losses through a cylinder head. Facing pistons also halve the stroke that would be required for one piston to provide the same compression ratio, and the engine can thus be run at higher revolutions per minute and produce more power. An internal sleeve valve is provided for space and other considerations. A combustion chamber size-varying mechanism allows for adjustment of the minimum size of an internal volume to increase efficiency at partial-power operation. Variable intake valve operation is used to control engine power.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: August 29, 2017
    Assignee: PINNACLE ENGINES, INC
    Inventor: James M. Cleeves
  • Patent number: 9650951
    Abstract: An internal combustion engine can include a piston moving in a cylinder and a junk head disposed opposite the piston head in the cylinder. The junk head can optionally be moveable between a higher compression ratio position closer to a top dead center of the piston and a lower compression ratio position further from the top dead center position of the piston. At least one intake port can deliver a fluid comprising inlet air to a combustion chamber within the cylinder. Combustion gases can be directed out of the combustion volume through at least one exhaust port. One or both of the intake port and the exhaust port can be opened and closed by operation of a sleeve valve that at least partially encircles the piston. Related articles, systems, and methods are described.
    Type: Grant
    Filed: October 10, 2011
    Date of Patent: May 16, 2017
    Assignee: PINNACLE ENGINES, INC.
    Inventors: James M. Cleeves, Simon David Jackson, Michael Hawkes, Michael A. Willcox
  • Publication number: 20170097091
    Abstract: An inverted combustion engine is described herein that can reduce or eliminate the amount of oil that leaks into a combustion volume of a combustion chamber. In some implementations, at least one piston of the combustion engine includes a crown that faces the combustion volume and a cavity on an opposing side of the crown that is configured to collect and contain oil that has entered the combustion chamber.
    Type: Application
    Filed: October 5, 2016
    Publication date: April 6, 2017
    Inventors: James M. Cleeves, Simon David Jackson, Joshua Raimond
  • Patent number: 9528402
    Abstract: Energy to speed heating of a catalyst associated with an internal combustion engine can be provided in the form of sensible energy (heat) via hot combustion products. In some variations, timing of opening and/or closing of an exhaust valve can be manipulated to increase sensible heat delivered to the catalyst in the exhaust gases.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: December 27, 2016
    Assignee: Pinnacle Engines, Inc.
    Inventors: James M. Cleeves, Michael A. Willcox
  • Publication number: 20160356235
    Abstract: A programmable processor receives engine speed data for an engine. The programmable processor calculates a work corresponding to a component of the engine. The calculated work is based on a change in the engine speed data over a range. A predicted work value is read from a table based on an engine speed and first metric. A value is transmitted to a control system when the calculated work is not the predicted work value. The value, when implemented by the control system, reduces a difference between the predicted work value and the calculated work for the component.
    Type: Application
    Filed: June 8, 2016
    Publication date: December 8, 2016
    Inventors: Michael Anthony Willcox, Brede Kolsrud, James M. Cleeves
  • Publication number: 20160215718
    Abstract: Implementations of the current subject-matter include systems, methods, and techniques that assist with controlling of injected fuel and spark timing across a range of operating conditions. For example, a prediction technique can be used to predict variation in combustion cylinder wall and internal metal temperatures over time, thereby enabling the likely effect of one of the calculated temperatures on airflow and hence on combustion to be assessed. The obtained information can be used to adjust fuel flow or spark timing in accordance with the predicted temperature variation from steady state conditions.
    Type: Application
    Filed: January 22, 2016
    Publication date: July 28, 2016
    Inventors: Michael A. Willcox, Brede Kolsrud, James M. Cleeves
  • Patent number: 9316150
    Abstract: Diesel opposed piston engines, optionally with variable compression ratio and/or turbocharging, can provide improved fuel efficiency by adapting a compression ratio of the engine in accordance with an engine load such that larger compression ratios are used for smaller loads and smaller compression ratios are used for larger loads. Turbocharging can provide improved efficiency at the smaller compression ratio operating conditions. Optionally, one or more current engine parameters can be modified to maintain a peak combustion chamber temperature below a threshold temperature at which an acceptable level of nitrogen oxide pollutants (NOX) is expected to be formed. One or more swirl inducing features can be included on piston crowns in an opposed piston engine. Methods, systems, articles of manufacture, etc. are described.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: April 19, 2016
    Assignee: Pinnacle Engines, Inc.
    Inventor: James M. Cleeves
  • Patent number: 9267486
    Abstract: An internal combustion engine is operable in an efficiency mode providing a first power output range between zero and a transition power output and in a power mode providing a second power output range between the transition power output and a maximum power output. The efficiency mode can include a first ignition timing and a first air/fuel ratio of the mixture to avoid premature auto-ignition, and the power mode can include a second ignition timing and a second air/fuel ratio of the mixture to avoid premature auto-ignition of the mixture. To further enable knock free operation of such an engine, turbulence can be imparted to the mixture to promote a faster burn duration and high temperatures that may lead to premature auto-ignition of the mixture can be avoided.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: February 23, 2016
    Assignee: Pinnacle Engines, Inc.
    Inventors: James M. Cleeves, Michael A. Willcox, Simon David Jackson, Nicholas Manov
  • Patent number: 9243578
    Abstract: Fuel efficiency of small carbureted engines can be improved through the use of a fuel shut off valve that ceases fuel flow in the carburetor upon determination that the engine throttle has been closed and the engine is not at or near an idle condition.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: January 26, 2016
    Assignee: Pinnacle Engines, Inc.
    Inventors: James M. Cleeves, Michael Hawkes
  • Patent number: 9214243
    Abstract: A three-dimensional memory is provided that includes a first memory level and a second memory level monolithically formed above the first memory level. The first memory level includes a first steering element coupled in series with and vertically stacked above or below a first non-volatile state change element. The second memory level includes a second steering element coupled in series with and vertically stacked above or below a second non-volatile state change element. Other aspects are also provided.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: December 15, 2015
    Assignee: SanDisk 3D LLC
    Inventors: Mark G. Johnson, Thomas H. Lee, Vivek Subramanian, Paul Michael Farmwald, James M. Cleeves
  • Patent number: 9206749
    Abstract: Various embodiments of methods and systems for varying the compression ratio in opposed-piston engines are disclosed herein. In one embodiment, an opposed-piston engine can include a first phaser operably coupled to a first crankshaft and a second phaser operably coupled to a corresponding second crankshaft. The phase angle between the crankshafts can be changed to reduce or increase the compression ratio in the corresponding combustion chamber to optimize or at least improve engine performance under a given set of operating conditions.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: December 8, 2015
    Assignee: Pinnacle Engines, Inc.
    Inventor: James M. Cleeves
  • Patent number: 9194288
    Abstract: An internal combustion engine can include a combustion volume within a cylinder of an internal combustion engine. The combustion volume can be defined at least by a cylinder wall and a first piston in the cylinder. A swirl port can deliver a fluid into the combustion volume via a swirl port outlet such that the delivered fluid is directed around a periphery of the cylinder with a fluid velocity disposed at a predetermined angle away from tangential to a curve of the cylinder wall to generate a swirling motion in the combustion volume.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: November 24, 2015
    Assignee: Pinnacle Engines, Inc.
    Inventors: James M. Cleeves, Simon D. Jackson, Michael A. Willcox
  • Patent number: 9175609
    Abstract: An internal combustion engine can be operated in response to a received first throttle control input in a first operating regime that includes delivering a first air-fuel mixture having a first air/fuel ratio to a combustion volume to deliver a first output power in a first output power range between zero and a transition output power level. The engine can be operated in response to a received second throttle control input in a second operating regime that includes delivering a second air/fuel ratio richer than the first air/fuel ratio to the combustion volume to deliver a second output power in a second output power range between the transition output power level and a maximum output power level.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: November 3, 2015
    Assignee: Pinnacle Engines, Inc.
    Inventors: James M. Cleeves, Michael Hawkes
  • Patent number: 9171857
    Abstract: There is provided a monolithic three dimensional array of charge storage devices which includes a plurality of device levels, wherein at least one surface between two successive device levels is planarized by chemical mechanical polishing.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: October 27, 2015
    Assignee: SANDISK 3D LLC
    Inventors: Thomas H. Lee, Vivek Subramanian, James M. Cleeves, Igor G. Kouznetsov, Mark G. Johnson, Paul Michael Farmwald
  • Patent number: 9016255
    Abstract: A sleeve valve with a valve body that at least partially encircles at least one piston that moves in a reciprocating manner can, at least partially define with the at least one piston a combustion chamber of an internal combustion engine. A valve actuation mechanism can move the sleeve valve between an open position and a closed position to control flow through a port of the internal combustion engine. The sealing edge of the sleeve valve can be urged against a valve seat by an urging force generated by the valve actuation mechanism when the sleeve valve is moved to the closed position. At least one of the sleeve valve and the valve seat can include a valve assistance feature that assists the valve actuation mechanism in resisting forces generated by the internal combustion engine in opposition to the urging force. Related articles, systems, and methods are described.
    Type: Grant
    Filed: October 10, 2011
    Date of Patent: April 28, 2015
    Assignee: Pinnacle Engines, Inc.
    Inventors: James M. Cleeves, Michael Hawkes
  • Publication number: 20150096514
    Abstract: Various types of valve systems are disclosed herein. In one embodiment, a positive control reciprocating sleeve valve system for use with an internal combustion engine includes opening and closing rockers controlled by corresponding opening and closing cam lobes. In one aspect of this embodiment, interference can be designed into the valve control system to provide additional “hold-closed” force to hold the valve against its seat during a portion of the engine cycle. In another aspect of this embodiment, positive control valve systems can include compliant components and systems, hydraulic systems, pneumatic systems, and/or mechanical spring systems to control valve lash, facilitate sealing, etc.
    Type: Application
    Filed: December 15, 2014
    Publication date: April 9, 2015
    Inventors: James M. Cleeves, Michael Hawkes, William H. Anderson
  • Patent number: 8981457
    Abstract: There is provided a monolithic three dimensional array of charge storage devices which includes a plurality of device levels, wherein at least one surface between two successive device levels is planarized by chemical mechanical polishing.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: March 17, 2015
    Assignee: SanDisk 3D LLC
    Inventors: Thomas H. Lee, Vivek Subramanian, James M. Cleeves, Mark G. Johnson, Paul Michael Farmwald, Igor G. Kouznetzov
  • Publication number: 20150059694
    Abstract: An internal combustion engine can be operated in response to a received first throttle control input in a first operating regime that includes delivering a first air-fuel mixture having a first air/fuel ratio to a combustion volume to deliver a first output power in a first output power range between zero and a transition output power level. The engine can be operated in response to a received second throttle control input in a second operating regime that includes delivering a second air/fuel ratio richer than the first air/fuel ratio to the combustion volume to deliver a second output power in a second output power range between the transition output power level and a maximum output power level.
    Type: Application
    Filed: November 10, 2014
    Publication date: March 5, 2015
    Inventors: James M. Cleeves, Michael Hawkes
  • Publication number: 20150053031
    Abstract: A gear assembly can include a biasing apparatus, which can include a hydraulic biasing member. The biasing apparatus can be activated to urge a scissor gear tooth of a scissor gear toward a second gear tooth of a second gear. The urging of the scissor gear tooth toward the second gear tooth can close a backlash gap between a first gear tooth of a first gear and the second gear tooth of the second gear.
    Type: Application
    Filed: August 21, 2014
    Publication date: February 26, 2015
    Inventors: Michael A. Willcox, James M. Cleeves, Dimitri Bassis, Kyle Langlands
  • Publication number: 20150044833
    Abstract: There is provided a monolithic three dimensional array of charge storage devices which includes a plurality of device levels, wherein at least one surface between two successive device levels is planarized by chemical mechanical polishing.
    Type: Application
    Filed: September 23, 2014
    Publication date: February 12, 2015
    Inventors: Thomas H. Lee, Vivek Subramanian, James M. Cleeves, Igor G. Kouznetsov, Mark G. Johnson, Paul Michael Farmwald