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: 8651086
    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 4, 2013
    Date of Patent: February 18, 2014
    Assignee: Pinnacle Engines, Inc.
    Inventor: James M. Cleeves
  • Publication number: 20140007840
    Abstract: Carburetor features, which can include but are not limited to varying slope angles in different sections of a multi-sectioned carburetor needle, can provide combustion mixtures to an engine that include a fuel-air ratio that is variable independent of the rate of air flow through the carburetor. Related methods, systems, articles of manufacture, etc. are described.
    Type: Application
    Filed: July 9, 2013
    Publication date: January 9, 2014
    Inventors: James M. Cleeves, Simon David Jackson
  • Publication number: 20140000567
    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: Application
    Filed: July 2, 2013
    Publication date: January 2, 2014
    Inventor: James M. Cleeves
  • Publication number: 20130314970
    Abstract: A pillar-shaped memory cell is provided that includes a steering element, and a non-volatile state change element coupled in series with the steering element. Other aspects are also provided.
    Type: Application
    Filed: July 29, 2013
    Publication date: November 28, 2013
    Applicant: SanDisk 3D LLC
    Inventors: Mark G. Johnson, Thomas H. Lee, Vivek Subramanian, Paul Michael Farmwald, James M. Cleeves
  • Patent number: 8573178
    Abstract: A sleeve valve assembly. The assembly includes a valve seat, a sleeve valve and an oil path-defining piece. The sleeve valve includes a distal end with a cavity. The distal end contacts the valve seat when the sleeve valve is located in a closed position. The oil path-defining piece includes an inlet port, an outlet port and a plurality of cooling passages. The flange of the sleeve valve is slidably in contact with the oil path-defining piece such that cooling fluid travelling into the inlet port and through the cooling passages enters into the cavity before exiting out the exit port.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: November 5, 2013
    Assignee: Pinnacle Engines, Inc.
    Inventor: James M Cleeves
  • Patent number: 8544445
    Abstract: A system and method are disclosed for fabricating and running an engine in two modes. The first mode is an efficiency mode having a high compression ratio and efficiency for low to medium loads. The second mode is a power mode having high power density for higher loads. The system may use a lean mixture in the efficiency mode, which mixture is made richer for more power in the power mode. The system may also use ignition timing to allow the efficiency mode and the high power mode to be at the same mixture.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: October 1, 2013
    Assignee: Pinnacle Engines, Inc.
    Inventors: James M. Cleeves, Nicholas Manov, Michael A. Willcox, Simon David Jackson
  • Publication number: 20130220279
    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: Application
    Filed: April 8, 2013
    Publication date: August 29, 2013
    Applicant: Pinnacle Engines, Inc.
    Inventor: James M. Cleeves
  • Patent number: 8503215
    Abstract: A memory cell is provided that includes a steering element, and a non-volatile state change element coupled in series with the steering element. The steering element and state change element are disposed in a vertically-oriented pillar. Other aspects are also provided.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: August 6, 2013
    Assignee: SanDisk 3D LLC
    Inventors: Mark G. Johnson, Thomas H. Lee, Vivek Subramanian, Paul Michael Farmwald, James M. Cleeves
  • Patent number: 8365697
    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: June 4, 2009
    Date of Patent: February 5, 2013
    Assignee: Pinnacle Engines, Inc.
    Inventor: James M. Cleeves
  • Publication number: 20130009230
    Abstract: A die is formed with different and optimized critical dimensions in different device levels and areas of those device levels using photolithography and etch techniques. One aspect of the invention provides for a memory array formed above a substrate, with driver circuitry formed in the substrate. A level of the memory array consists of, for example, parallel rails and a fan-out region. It is desirable to maximize density of the rails and minimize cost of lithography for the entire memory array. This can be achieved by forming the rails at a tighter pitch than the CMOS circuitry beneath it, allowing cheaper lithography tools to be used when forming the CMOS, and similarly by optimizing lithography and etch techniques for a device level to produce a tight pitch in the rails, and a more relaxed pitch in the less-critical fan-out region.
    Type: Application
    Filed: September 13, 2012
    Publication date: January 10, 2013
    Inventors: James M. Cleeves, Roy E. Scheuerlein
  • Publication number: 20120330534
    Abstract: Based on one or more monitored operation parameters of an internal combustion engine, a set of engine operation conditions necessary to provide combustion stability in a combustion volume of the engine, optimized fuel efficiency, and minimized production of pollutants such as nitrogen oxides, carbon monoxide, and unburned hydrocarbons can be determined. The new set of engine operation conditions can be dynamically implemented in response to changing engine loads and changing engine speeds to maintain a combustion mixture and combustion conditions within a combustion chamber of the engine constrained flammability limits, pollutant generation rates, and fuel efficiency considerations. Related articles, systems, and methods are described.
    Type: Application
    Filed: June 27, 2012
    Publication date: December 27, 2012
    Inventors: James M. Cleeves, Michael A. Willcox
  • Patent number: 8283706
    Abstract: A die is formed with different and optimized critical dimensions in different device levels and areas of those device levels using photolithography and etch techniques. One aspect of the invention provides for a memory array formed above a substrate, with driver circuitry formed in the substrate. A level of the memory array consists of, for example, parallel rails and a fan-out region. It is desirable to maximize density of the rails and minimize cost of lithography for the entire memory array. This can be achieved by forming the rails at a tighter pitch than the CMOS circuitry beneath it, allowing cheaper lithography tools to be used when forming the CMOS, and similarly by optimizing lithography and etch techniques for a device level to produce a tight pitch in the rails, and a more relaxed pitch in the less-critical fan-out region.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: October 9, 2012
    Assignee: SanDisk 3D LLC
    Inventors: James M. Cleeves, Roy E. Scheuerlein
  • Publication number: 20120250396
    Abstract: A memory cell is provided that includes a steering element, and a non-volatile state change element coupled in series with the steering element. The steering element and state change element are disposed in a vertically-oriented pillar. Other aspects are also provided.
    Type: Application
    Filed: June 19, 2012
    Publication date: October 4, 2012
    Inventors: Mark G. Johnson, Thomas H. Lee, Vivek Subramanian, Paul Michael Farmwald, James M. Cleeves
  • Publication number: 20120223380
    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: May 10, 2012
    Publication date: September 6, 2012
    Applicant: SanDisk 3D LLC
    Inventors: Thomas H. Lee, Vivek Subramanian, James M. Cleeves, Andrew J. Walker, Christopher J. Petti, Igor G. Kouznetzov, Mark G. Johnson, Paul Michael Farmwald, Brad Herner
  • Patent number: 8208282
    Abstract: A memory cell is provided that includes a first conductor, a second conductor, a steering element that is capable of providing substantially unidirectional current flow, and a state change element coupled in series with the steering element. The state change element is capable of retaining a programmed state, and the steering element and state change element are vertically aligned with one another. Other aspects are also provided.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: June 26, 2012
    Assignee: SanDisk 3D LLC
    Inventors: Mark G. Johnson, Thomas H. Lee, Vivek Subramanian, Paul Michael Farmwald, James M. Cleeves
  • Publication number: 20120158273
    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: Application
    Filed: January 5, 2012
    Publication date: June 21, 2012
    Applicant: PINNACLE ENGINES, INC.
    Inventors: James M. Cleeves, Michael A. Willcox, Simon David Jackson, Nicholas Manov
  • Publication number: 20120111293
    Abstract: A cam can rotate on a camshaft of an internal combustion engine. A rocker arm that actuates a valve of the internal combustion engine can include a rocker pivot connection point located on a distal side of a valve component from a proximate end of the rocker arm that is deflected by action of the cam. The rocker arm can include a contact point located between the rocker pivot point and the proximate end. The contact point can act on the valve component to actuate the valve. The rocker pivot connection point can be translated such that it is closer to or further from the cam. This translation can be used to vary valve lift and/or valve timing. The cam can have a three-dimensional profile to provide different actuation distance of the rocker arm. Systems, methods, and articles of manufacture consistent with one or more of these features are described.
    Type: Application
    Filed: October 10, 2011
    Publication date: May 10, 2012
    Inventors: James M. Cleeves, Michael Hawkes
  • Publication number: 20120090298
    Abstract: Features relating to engine efficiency and emissions controls are described. Systems, methods, articles or manufacture and the like can include features relating to integrated muffler and emissions controls for engine exhaust, water-injected internal combustion engine with an asymmetric compression and expansion ratio, controlled combustion durations for HCCI engines, piston shrouding of sleeve valves, low element count bearings, improved ports, and premixing of fuel and exhaust.
    Type: Application
    Filed: October 11, 2011
    Publication date: April 19, 2012
    Inventor: James M. Cleeves
  • Publication number: 20120085319
    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. Related methods, systems, and article of manufacture are described.
    Type: Application
    Filed: October 10, 2011
    Publication date: April 12, 2012
    Inventors: James M. Cleeves, Michael Hawkes
  • Publication number: 20120085314
    Abstract: An amount of inlet air can be delivered to a combustion volume of an internal combustion engine via an air inlet port, and delivery of an amount of a fuel from a compressed fuel reservoir to the combustion volume can be controlled via a pressurized fuel inlet port positioned to the deliver the amount of the fuel directly into the combustion volume separately from the air inlet port. The amount of the fuel can be controlled relative to the amount of the inlet air to create an air-fuel mixture within the combustion volume having a target air/fuel ratio. In other aspects, a vehicle chassis can be designed to incorporate a compressed fuel reservoir as a structural part of the chassis. Methods, system, and articles of manufacture relating to these features are described.
    Type: Application
    Filed: October 10, 2011
    Publication date: April 12, 2012
    Inventor: James M. Cleeves