Patents by Inventor Hanumantharao Konakanchi

Hanumantharao Konakanchi 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).

  • Fuel injector for common rail
    Patent number: 10077748
    Abstract: A fuel injector, comprising an injector body having a longitudinal axis, an injector cavity, an injector orifice at a distal end of the injector cavity, and an inlet conduit configured to supply fuel into the injector cavity, a nozzle valve in the injector cavity, a drain circuit configured to drain fuel from the injector cavity to a low pressure drain, a pilot valve in flow communication with the drain circuit, a chamber housing having an inlet passage to receive fuel from the injector cavity, a return port in flow communication with the pilot valve to drain fuel to the drain circuit, and an abutting surface surrounding the return port, and a control body slidably disposed in the chamber housing, the control body having, a distal end, a proximal end, and a longitudinal axis parallel with the injector body longitudinal axis, a first depression at the distal end defining a first control chamber in which one end of the nozzle valve is guided, a second depression at the proximal end defining a second control cha
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: September 18, 2018
    Assignee: Cummins Inc.
    Inventors: Donald J. Benson, Ahmad M. Sabri, Hanumantharao Konakanchi
  • FUEL INJECTOR FOR COMMON RAIL
    Publication number: 20160177900
    Abstract: A fuel injector, comprising an injector body having a longitudinal axis, an injector cavity, an injector orifice at a distal end of the injector cavity, and an inlet conduit configured to supply fuel into the injector cavity, a nozzle valve in the injector cavity, a drain circuit configured to drain fuel from the injector cavity to a low pressure drain, a pilot valve in flow communication with the drain circuit, a chamber housing having an inlet passage to receive fuel from the injector cavity, a return port in flow communication with the pilot valve to drain fuel to the drain circuit, and an abutting surface surrounding the return port, and a control body slidably disposed in the chamber housing, the control body having, a distal end, a proximal end, and a longitudinal axis parallel with the injector body longitudinal axis, a first depression at the distal end defining a first control chamber in which one end of the nozzle valve is guided, a second depression at the proximal end defining a second control cha
    Type: Application
    Filed: December 23, 2014
    Publication date: June 23, 2016
    Inventors: Donald J. Benson, Ahmad M. Sabri, Hanumantharao Konakanchi