Patents by Inventor Raghavendra Venkatesh

Raghavendra Venkatesh 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).

  • Patent number: 11067191
    Abstract: The present invention relates to a top cover (5) for soft throttling valve body (2), the top cover (5) comprising one or more fluid conduits for transferring a pilot fluid flow for setting a degree of opening of a main valve situated in a soft throttling valve body to the soft throttling valve body. Furthermore, the invention relates to a soft throttling valve (1) and a method for assembling the soft throttling valve (1). The object of the invention is to allow a good control of the pilot fluid flow while protecting the soft throttling valve body from damage due to valve failure. The object is solved by having a follower arrangement arranged to throttle the pilot fluid flow depending on the degree of opening of the main valve, further having a manual opening arrangement for manually opening the main valve and/or by further preventing a step-wise opening of the main valve in less than two opening steps. A method for assembling a soft throttling valve is also disclosed.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: July 20, 2021
    Assignee: DANFOSS A/S
    Inventors: Niels P. Vestergaard, Detlef Matzen, Rajakumar Kanajam, Raghavendra Venkatesh, Torben Schack Fabricius
  • Publication number: 20200063887
    Abstract: The present invention relates to a top cover (5) for soft throttling valve body (2), the top cover (5) comprising one or more fluid conduits for transferring a pilot fluid flow for setting a degree of opening of a main valve situated in a soft throttling valve body to the soft throttling valve body. Furthermore, the invention relates to a soft throttling valve (1) and a method for assembling the soft throttling valve (1). The object of the invention is to allow a good control of the pilot fluid flow while protecting the soft throttling valve body from damage due to valve failure. The object is solved by having a follower arrangement arranged to throttle the pilot fluid flow depending on the degree of opening of the main valve, further having a manual opening arrangement for manually opening the main valve and/or by further preventing a step-wise opening of the main valve in less than two opening steps. A method for assembling a soft throttling valve is also disclosed.
    Type: Application
    Filed: October 27, 2017
    Publication date: February 27, 2020
    Inventors: Niels P. Vestergaard, Detlef Matzen, Rajakumar Kanajam, Raghavendra Venkatesh, Torben Schack Fabricius
  • Publication number: 20180128394
    Abstract: The present invention relates to a top cover (3) for a soft throttling valve body (2), to a soft throttling valve (1), and to a method for throttling a main valve of a soft throttling valve (1). A follower arrangement (8) is arranged to throttle a pilot fluid flow for setting a degree of opening of the main valve in order to allow a soft throttling of the main valve, a throttling of the pilot fluid flow depending on a degree of opening of the main valve, so as to allow for a soft throttling process of the main valve. Thus, a self-controlled throttling of pilot fluid flow driving the main valve in order to establish a partial opening of the main valve becomes possible. By that, a good prevention of pressure shocks when throttling the valve is allowed and a good control for partially opening the main valve is achieved.
    Type: Application
    Filed: March 1, 2016
    Publication date: May 10, 2018
    Applicant: Danfoss A/S
    Inventors: Aravind Vijayan, Raghavendra Venkatesh, John Arul Mike Prakash, Detlef Matzen