Patents by Inventor James Yi

James Yi 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: 20110162621
    Abstract: A combustion system for a direct-injection, spark-ignition engine is disclosed. A side-mounted fuel injector located outboard the intake valves directs multiple fuel jets into a shallow, spherical bowl formed in a domed piston. Both good mixing to facilitate good air utilization with early injection and an ignitable mixture at the spark plug with late injection to facilitate cold start are provided with such a combustion system. Because the bowl is smooth and shallow, the surface area of the combustion chamber is less than with a deeper bowl of complicated shape. Lowering surface area in the combustion chamber leads to improved fuel economy.
    Type: Application
    Filed: June 24, 2010
    Publication date: July 7, 2011
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Zheng Xu, Jianwen James Yi, Steven Wooldridge, David Bruce Reiche, Neal James Corey, Stephen George Russ, Steven Paul Penkevich, Claudia Olivia Iyer
  • Publication number: 20110041801
    Abstract: A method for engine starting is provided. The method may include performing idle-stop operation, and during a subsequent re-start, applying multi-strike ignition operation for a first combustion cycle. In this way, improved engine starting may be achieved with reduced emissions.
    Type: Application
    Filed: October 29, 2010
    Publication date: February 24, 2011
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Alex O'Connor Gibson, Jianwen James Yi, Brad Alan VanDerWege, Joseph Norman Ulrey, Cindy Zhou, Steven Todd Wooldridge, David Reiche
  • Publication number: 20100300404
    Abstract: A method for operation of a vehicle having an internal combustion engine is provided. The internal combustion engine may include one or more combustion chambers, a fuel delivery system including a direct fuel injector coupled to each combustion chamber, an ignition system including one or more spark plugs coupled to each combustion chamber, a piston disposed within each combustion chamber, and an intake and an exhaust valve coupled to each combustion chamber, the internal combustion engine providing motive power to the vehicle. The method may include discontinuing combustion operation within the internal combustion engine responsive to idle-stop operation. The method may further include, during a direct-start, performing multi-strike ignition operation per combustion cycle via one or more selected spark plug(s) for at least a first combustion cycle in a combustion chamber following the discontinuation of combustion operation, the one or more selected spark plug(s) coupled to the combustion chamber.
    Type: Application
    Filed: May 28, 2009
    Publication date: December 2, 2010
    Applicant: Ford Global Technologies, LLC
    Inventors: Alex O'Connor Gibson, Jianwen James Yi, Brad Alan VanDerWege, Joseph Norman Ulrey, Cindy Zhou, Steven Todd Wooldridge, David Reiche
  • Patent number: 7827975
    Abstract: A method for operation of a vehicle having an internal combustion engine is provided. The internal combustion engine may include one or more combustion chambers, a fuel delivery system including a direct fuel injector coupled to each combustion chamber, an ignition system including one or more spark plugs coupled to each combustion chamber, a piston disposed within each combustion chamber, and an intake and an exhaust valve coupled to each combustion chamber, the internal combustion engine providing motive power to the vehicle. The method may include discontinuing combustion operation within the internal combustion engine responsive to idle-stop operation. The method may further include, during a direct-start, performing multi-strike ignition operation per combustion cycle via one or more selected spark plug(s) for at least a first combustion cycle in a combustion chamber following the discontinuation of combustion operation, the one or more selected spark plug(s) coupled to the combustion chamber.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: November 9, 2010
    Assignee: Ford Global Technologies, LLC
    Inventors: Alex O'Connor Gibson, Jianwen James Yi, Brad Alan VanDerWege, Joseph Norman Ulrey, Cindy Zhou, Steven Todd Wooldridge, David Reiche
  • Patent number: 7720593
    Abstract: A system and method for controlling operation of a multiple cylinder direct injection internal combustion engine include injecting fuel directly into the combustion chamber during the exhaust stroke at high engine speeds and loads to reduce the effect of intake airflow on the injection spray and improve fuel-air mixture homogeneity.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: May 18, 2010
    Assignee: Ford Global Technologies, LLC
    Inventors: Jianwen James Yi, Steven Todd Wooldridge, George Carver Davis
  • Publication number: 20090093950
    Abstract: A system and a method of facilitating fuel vaporization in a directly injected internal combustion engine are provided. As one example, the method comprises: closing an exhaust valve of the cylinder; opening an intake valve after the exhaust valve has closed; moving a piston of the cylinder away from top dead center between the closing of the exhaust valve and the opening of the intake valve to expand the cylinder volume and reduce a pressure within the cylinder to below a pressure of an air intake manifold of the cylinder; and initiating an injection of fuel directly into the cylinder via an in-cylinder injector after the exhaust valve has closed.
    Type: Application
    Filed: October 4, 2007
    Publication date: April 9, 2009
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Jianwen James Yi, Claudia Olivia Iyer, FooChern Ting, George Carver Davis
  • Publication number: 20090088945
    Abstract: A system and method for controlling operation of a multiple cylinder direct injection internal combustion engine include injecting fuel directly into the combustion chamber during the exhaust stroke at high engine speeds and loads to reduce the effect of intake airflow on the injection spray and improve fuel-air mixture homogeneity.
    Type: Application
    Filed: October 2, 2007
    Publication date: April 2, 2009
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Jianwen James Yi, Steven Todd Wooldridge, George Carver Davis
  • Patent number: 7418940
    Abstract: A system and method for operating an internal combustion engine include injecting fuel through a plurality of fuel jets of a fuel injector directly into a corresponding cylinder with at least a first plurality jets oriented to primarily support operation in a stratified mode and a second plurality of jets oriented to primarily support operation in a homogeneous mode. The first plurality of jets is oriented to spray fuel generally downward toward the piston bowl and the second plurality of jets is oriented to spray fuel generally across the cylinder toward the exhaust valves. The spray jets reduce or eliminate valve, liner, and piston wetting while providing good mixing in homogeneous mode and good combustion stability for light stratified charge during cold starts to achieve desired targets for feedgas emissions and combustion efficiency.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: September 2, 2008
    Assignee: Ford Global Technologies, LLC
    Inventors: Jianwen James Yi, Claudia Olivia Iyer, Brad Alan VanDerWege, Steven Wooldridge
  • Publication number: 20080153182
    Abstract: A method of performing a thermal process using a bake plate of a track lithography tool. The bake plate includes a plurality of heater zones. The method includes providing a first drive signal to a first electrode in electrical communication with a process surface of the bake plate. The first electrode is associated with a first heater zone of the plurality of heater zones and each of the plurality of heater zones is adapted to receive a control voltage. The method also includes moving a semiconductor substrate toward the process surface of the bake plate, receiving a first response signal from the first electrode, processing the first response signal to determine a first capacitance value associated with a first gap between the first electrode and a first portion of the semiconductor substrate, and providing a measurement signal related to the first capacitance value.
    Type: Application
    Filed: July 13, 2007
    Publication date: June 26, 2008
    Applicant: SOKUDO CO., LTD
    Inventors: Harald Herchen, Brian C. Lue, Kim Vellore, Erica Renee Porras, James Yi Liu
  • Publication number: 20080004895
    Abstract: A method for providing toxin information and recommendations includes receiving toxin content data for at least one ingredient. The toxin content data may include the type and amount for toxins found in the ingredient. The ingredient is classified based on the toxin content data and a predetermined allowable toxin amount for the ingredient. Based on the classification of the ingredient, ingredient storage information is displayed. In addition, ingredient use information may be displayed based on the toxin content data.
    Type: Application
    Filed: May 11, 2007
    Publication date: January 3, 2008
    Inventors: James Yi, Gary Fischer, Frank Yin, William Craig
  • Patent number: 7186215
    Abstract: A lifting tool for use with a standard rib or chest retractor device where the tool acts to obliquely lift and spread open an incision, the chest wall and ribs, the tool having a pair of extended hook members disposed generally parallel and co-planarly on a mounting flange member.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: March 6, 2007
    Inventors: James Yi, Jay Taub
  • Publication number: 20040092797
    Abstract: A lifting tool for use with a standard rib or chest retractor device where the tool acts to obliquely lift and spread open an incision, the chest wall and ribs, the tool having a pair of extended hook members disposed generally parallel and co-planarly on a mounting flange member.
    Type: Application
    Filed: June 24, 2003
    Publication date: May 13, 2004
    Inventors: James Yi, Jay Taub
  • Patent number: 6725828
    Abstract: A system and method for controlling combustion in a direct injection spark ignition internal combustion engine inject fuel directly into a combustion chamber in a wide-angle, hollow-cone spray to form a vortex that draws fuel vapor out of the spray to form a combustible fuel-air mixture at a spark location outside the hollow-cone spray. Various piston combustion bowl configurations further enhance the stability of the vortex and reduce fuel impingement on the piston surface while providing a desired compression ratio. Cylinder airflow is controlled to produce substantial swirl flow resulting in a more compact fuel cloud around the spark location to reduce over-mixing and improve robustness to cycle-to-cycle variation in the mixing process.
    Type: Grant
    Filed: June 17, 2003
    Date of Patent: April 27, 2004
    Assignee: Ford Global Technologies, LLC
    Inventors: Zhiyu Han, Claudia Olivia Iyer, Ruben Humberto Munoz Pascua, Brad Alan VanDerWege, Jianwen James Yi