Patents by Inventor Aleksandr E. LESIN

Aleksandr E. LESIN 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).

  • SLIDING CAM FOLLOWER
    Publication number: 20230167794
    Abstract: The present disclosure provides a high-pressure fuel pump including a barrel unit, a plunger, and a camshaft assembly having an eccentric cam lobe including a surface of the lobe. A follower is provided between the plunger and the surface of the lobe of the camshaft assembly to facilitate translation between the rotational movement of the camshaft assembly to axial movement of the plunger. The follower includes arcuate surfaces configured to mate with corresponding arcuate surfaces of the lobe of the cam shaft assembly and the plunger, respectively.
    Type: Application
    Filed: January 27, 2023
    Publication date: June 1, 2023
    Inventors: Samuel David Griffith Magnuson, Donald J. Benson, Matthew B. State, Eric A. Benham, Aleksandr E. Lesin, Karthik Sethuraman
  • TAPPET ROLLER ASSEMBLY
    Publication number: 20230003183
    Abstract: A tappet roller assembly in which a roller shoe has a roller bore shaped to receive and retain a roller. The roller is sized and configured to rotate within the roller bore. The roller shoe may have a lubricating passage extending from a peripheral surface of the roller shoe to the roller bore to lubricate the roller.
    Type: Application
    Filed: December 19, 2019
    Publication date: January 5, 2023
    Inventors: Romaine O. Edwards, Mustafa Utku Unal, Aleksandr E. Lesin, Chin-Pei Wang, Neil Jeffries, Jason R. Garcia
  • Camshaft thrust control secured by drive gear
    Patent number: 10487810
    Abstract: An apparatus and method of producing a pump including a housing and a cam received within the housing that is rotatable relative to the housing. The cam includes an axis of rotation. The pump further includes a retainer plate operable to abut the cam to restrict movement of the cam in a first direction along the axis of rotation. The pump further includes a biaser, such as a spring, operable to place a first constant force in the first direction on the retainer plate.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: November 26, 2019
    Assignee: Cummins Inc.
    Inventors: Justin Gregory Wenger, James Gregory Steinrock, Richard Duncan, Aleksandr E. Lesin, Chin-Pei Wang
  • CAMSHAFT THRUST CONTROL SECURED BY DRIVE GEAR
    Publication number: 20170167473
    Abstract: An apparatus and method of producing a pump including a housing and a cam received within the housing that is rotatable relative to the housing. The cam includes an axis of rotation. The pump further includes a retainer plate operable to abut the cam to restrict movement of the cam in a first direction along the axis of rotation. The pump further includes a biaser, such as a spring, operable to place a first constant force in the first direction on the retainer plate.
    Type: Application
    Filed: February 3, 2014
    Publication date: June 15, 2017
    Inventors: Justin Gregory WENGER, James Gregory STEINROCK, Richard DUNCAN, Aleksandr E. LESIN, Chin-Pei WANG