Patents by Inventor Lakshmanudu KURVA

Lakshmanudu KURVA 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).

  • Method of assembling a set of impellers through tie rods impeller and turbomachine
    Patent number: 10823179
    Abstract: A set of impellers that are axially adjacent to each other and that have respective axial through holes are assembled. At least a first and a second axial tie rods are used. At least one connection element being axially adjacent to two impellers respectively at its two sides and having an axial through hole is provided. The connection element is used for securing, at one side of its axial through hole, an end of the first axial tie rod and, at the other side of its axial through hole, an end of the second axial tie rod. Typically, the connection element is one of the impellers of the set.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: November 3, 2020
    Assignee: NUOVO PIGNONE SRL
    Inventors: Kalyan Kumar Venkatachalam, Lakshmanudu Kurva, Manuele Bigi
  • Multistage compressor and method for operating a multistage compressor
    Patent number: 9903374
    Abstract: A multi-stage compressor is described, comprising a rotor having a plurality of axially stacked impellers and a tie rod extending through the stacked impellers and holding the impellers together. A gas compression path extends from a compressor inlet to a compressor outlet and through the impellers. A flow channel is provided between the tie rod and the stacked impellers. The flow channel develops along at least a portion of the tie rod. Hot gas is diverted from the compression path and flows through the flow channel to heat the tie rod during startup of the compressor.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: February 27, 2018
    Assignee: Nuovo Pignone Srl
    Inventors: Bhaskara Kosamana, Manuele Bigi, Kalyankumar V, Lakshmanudu Kurva, Massimiliano Borghetti, Marco Formichini
  • METHOD OF ASSEMBLING A SET OF IMPELLERS THROUGH TIE RODS IMPELLER AND TURBOMACHINE
    Publication number: 20160319820
    Abstract: A set of impellers that are axially adjacent to each other and that have respective axial through holes are assembled. At least a first and a second axial tie rods are used. At least one connection element being axially adjacent to two impellers respectively at its two sides and having an axial through hole is provided. The connection element is used for securing, at one side of its axial through hole, an end of the first axial tie rod and, at the other side of its axial through hole, an end of the second axial tie rod. Typically, the connection element is one of the impellers of the set.
    Type: Application
    Filed: December 16, 2014
    Publication date: November 3, 2016
    Inventors: Kalyan Kumar VENKATACHALAM, Lakshmanudu KURVA, Manuele BIGI
  • MULTISTAGE COMPRESSOR AND METHOD FOR OPERATING A MULTISTAGE COMPRESSOR
    Publication number: 20150316064
    Abstract: A multi-stage compressor is described, comprising a rotor having a plurality of axially stacked impellers and a tie rod extending through the stacked impellers and holding the impellers together. A gas compression path extends from a compressor inlet to a compressor outlet and through the impellers. A flow channel is provided between the tie rod and the stacked impellers. The flow channel develops along at least a portion of the tie rod. Hot gas is diverted from the compression path and flows through the flow channel to heat the tie rod during startup of the compressor.
    Type: Application
    Filed: December 16, 2013
    Publication date: November 5, 2015
    Applicant: Nuovo Pignone Srl
    Inventors: Bhaskara KOSAMANA, Manuele BIGI, Kalyankumar V, Lakshmanudu KURVA, Massimiliano BORGHETTI, Marco FORMICHINI