Patents by Inventor Guangrui G. Zhu

Guangrui G. Zhu 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).

  • Connecting rod lubrication apparatus
    Patent number: 10415630
    Abstract: An apparatus includes a connecting rod having a surface that defines an opening to receive a pin for coupling the connecting rod to a piston at a first end of the connecting rod. The surface includes a groove arrangement to collect, retain and distribute lubrication fluid in the space between the pin and the inner surface. The surface can be formed by the connecting rod or a bushing in an opening of the connecting rod.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: September 17, 2019
    Assignee: Cummins Inc.
    Inventor: Guangrui G. Zhu
  • CONNECTING ROD LUBRICATION APPARATUS
    Publication number: 20180031029
    Abstract: An apparatus includes a connecting rod having a surface that defines an opening to receive a pin for coupling the connecting rod to a piston at a first end of the connecting rod. The surface includes a groove arrangement to collect, retain and distribute lubrication fluid in the space between the pin and the inner surface. The surface can be formed by the connecting rod or a bushing in an opening of the connecting rod.
    Type: Application
    Filed: October 9, 2017
    Publication date: February 1, 2018
    Inventor: Guangrui G. Zhu
  • Connecting rod lubrication apparatus
    Patent number: 9810257
    Abstract: An apparatus includes a connecting rod having a surface that defines an opening to receive a pin for coupling the connecting rod to a piston at a first end of the connecting rod. The surface includes a groove arrangement to collect, retain and distribute lubrication fluid in the space between the pin and the inner surface. The surface can be formed by the connecting rod or a bushing in an opening of the connecting rod.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: November 7, 2017
    Assignee: Cummins Inc.
    Inventor: Guangrui G. Zhu
  • CONNECTING ROD LUBRICATION APPARATUS
    Publication number: 20150159688
    Abstract: An apparatus includes a connecting rod having a surface that defines an opening to receive a pin for coupling the connecting rod to a piston at a first end of the connecting rod. The surface includes a groove arrangement to collect, retain and distribute lubrication fluid in the space between the pin and the inner surface. The surface can be formed by the connecting rod or a bushing in an opening of the connecting rod.
    Type: Application
    Filed: February 19, 2015
    Publication date: June 11, 2015
    Inventor: Guangrui G. Zhu