Patents by Inventor Shanmukh Sarode

Shanmukh Sarode 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).

  • Piston-type positive displacement machine with a pressure-adaptive piston-cylinder interface
    Patent number: 11118681
    Abstract: A piston and cylinder assembly of an axial piston machine is disclosed which includes a cylinder having a uniform internal diameter, a cylindrical bushing press-fit against the inner surface of the cylinder and extending at least partially therein, the bushing comprising at least one circumferential groove formed on an outer surface of the bushing against the inner surface of the cylinder, a piston reciprocably disposed within the cylindrical bushing, generating a piston-bushing-interface, the piston and the bushing defining a diametrical clearance therebetween, the diametrical clearance defining a lubrication gap and a fluid-dynamic seal between the piston and the cylindrical bushing.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: September 14, 2021
    Assignee: Purdue Research Foundation
    Inventors: Lizhi Shang, Shanmukh Sarode, Andrea Vacca
  • PISTON-TYPE POSITIVE DISPLACEMENT MACHINE WITH A PRESSURE-ADAPTIVE PISTON-CYLINDER INTERFACE
    Publication number: 20200340581
    Abstract: A piston and cylinder assembly of an axial piston machine is disclosed which includes a cylinder having a uniform internal diameter, a cylindrical bushing press-fit against the inner surface of the cylinder and extending at least partially therein, the bushing comprising at least one circumferential groove formed on an outer surface of the bushing against the inner surface of the cylinder, a piston reciprocably disposed within the cylindrical bushing, generating a piston-bushing-interface, the piston and the bushing defining a diametrical clearance therebetween, the diametrical clearance defining a lubrication gap and a fluid-dynamic seal between the piston and the cylindrical bushing.
    Type: Application
    Filed: April 23, 2020
    Publication date: October 29, 2020
    Applicant: Purdue Research Foundation
    Inventors: Lizhi Shang, Shanmukh Sarode, Andrea Vacca