Patents by Inventor Ruonan Sun

Ruonan Sun 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).

  • Publication number: 20240117078
    Abstract: A block polymer, a lithiated block polymer, and a preparation method and application thereof are provided. A block polymer has a structure shown in B-C-B-A, where A represents a polymer block A, B represents a polymer block B, and C represents a polymer block C. The polymer block A is polymerized from alkenyl formic acid monomers. The polymer block B is polymerized from aryl vinyl monomers. The polymer block C is polymerized from acrylate monomers. The lithiated block polymer is a lithiated product of the block polymer. The block polymer and the lithiated block polymer can be used as lithium-ion battery binder.
    Type: Application
    Filed: February 8, 2021
    Publication date: April 11, 2024
    Applicants: Envision Dynamics Technology (Jiangsu) Co., Ltd., Envision Intelligent Innovation Dynamics Technology (Shanghai) Ltd.
    Inventors: Difeng WEI, Hao LI, Ruonan LI, Huayu SUN
  • Patent number: 8055432
    Abstract: A HCCI engine with a model reference adaptive feedback control system maintains stable HCCI combustion during speed/load transitions by: (1) estimating the maximum rate of pressure rise (MRPR), for each cycle, from an extra-cylinder sensor metric, such as a crankshaft dynamics or knock sensor metric, via statistical vector-to-vector correlation; (2) periodically self-tuning the vector-to-vector correlation; (3) applying knowledge base models to guide cycle-to-cycle adjustments of fuel quantity and other engine parameters, to maintain a target MRPR value.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: November 8, 2011
    Assignee: The United States of America as represented by the Administrator of the U.S. Environmental Protection Agency
    Inventors: Ruonan Sun, Xiaoguo Tang
  • Publication number: 20100031924
    Abstract: A HCCI engine with a model reference adaptive feedback control system maintains stable HCCI combustion during speed/load transitions by: (1) estimating the maximum rate of pressure rise (MRPR), for each cycle, from an extra-cylinder sensor metric, such as a crankshaft dynamics or knock sensor metric, via statistical vector-to-vector correlation; (2) periodically self-tuning the vector-to-vector correlation; (3) applying knowledge base models to guide cycle-to-cycle adjustments of fuel quantity and other engine parameters, to maintain a target MRPR value.
    Type: Application
    Filed: August 7, 2008
    Publication date: February 11, 2010
    Inventors: Ruonan Sun, Xiaoguo Tang
  • Patent number: 6910459
    Abstract: An internal combustion engine is adapted for operation with homogeneous combustion and compression ignition. The engine includes plural cylinders with the piston in each cylinder defining the main combustion chamber and connected to a crankshaft for reciprocating motion rotatably driving the crankshaft. An auxiliary combustion chamber and an inlet passage are formed in the engine head for each of the cylinders with a control valve for controlling communication between the main combustion chamber and the auxiliary combustion chamber and an inlet valve for controlling communication between the main combustion chamber and the inlet passage. The inlet valve is driven with rotation of the crankshaft, while the drive for the combustion control valve is independent of angular position of the crankshaft and has its own controller for timing its opening and closing to provide controlled homogeneous combustion.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: June 28, 2005
    Assignee: The United States of America as represented by the Administration of the U.S. Environmental Protection Agency
    Inventors: Ruonan Sun, Karl H. Hellman, Charles L. Gray
  • Publication number: 20040237928
    Abstract: An internal combustion engine is adapted for operation with homogeneous combustion and compression ignition. The engine includes plural cylinders with the piston in each cylinder defining the main combustion chamber and connected to a crankshaft for reciprocating motion rotatably driving the crankshaft. An auxiliary combustion chamber and an inlet passage are formed in the engine head for each of the cylinders with a control valve for controlling communication between the main combustion chamber and the auxiliary combustion chamber and an inlet valve for controlling communication between the main combustion chamber and the inlet passage. The inlet valve is driven with rotation of the crankshaft, while the drive for the combustion control valve is independent of angular position of the crankshaft and has its own controller for timing its opening and closing to provide controlled homogeneous combustion.
    Type: Application
    Filed: May 30, 2003
    Publication date: December 2, 2004
    Inventors: Ruonan Sun, Karl H. Hellman, Charles L. Gray