Patents by Inventor Ricardo Martinez-Botas

Ricardo Martinez-Botas 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: 10378369
    Abstract: A turbine is provided with a turbine rotor blade, and a turbine housing having a scroll part extending along a circumferential direction of the turbine rotor blade. The scroll part is configured such that an A/R ratio of a flow passage area A to a distance R between an axis of the turbine rotor blade and a flow passage center of the scroll part has a concave distribution at least in a part of a graph where an abscissa represents a circumferential position around the axis of the turbine rotor blade and an ordinate represents the A/R ratio.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: August 13, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takao Yokoyama, Seiichi Ibaraki, Ricardo Martinez-Botas, Mingyang Yang
  • Patent number: 10240612
    Abstract: A centrifugal compressor is disclosed. The centrifugal compressor comprises an inlet and an impeller comprising a hub and blades. The inlet is for conveying flow to the impeller comprising guide means and is arranged to guide the flow through the inlet to induce swirl in the flow adjacent tips of the blades, the direction of swirl being the direction of rotation of the blades, without substantially disturbing flow adjacent the hub.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: March 26, 2019
    Assignee: Imperial Innovations Limited
    Inventors: Mingyang Yang, Ricardo Martinez-Botas
  • Patent number: 10161302
    Abstract: A variable flow-restricting turbine assembly for a turbocharger includes a housing, a turbine mounted for rotation in the housing, and a variable flow-restrictor. The variable flow-restrictor includes a first series of angularly-distributed flow-restrictor portions distributed around the turbine wheel and located in an exhaust flow path to the wheel, and a second series of angularly-distributed flow-restrictor portions distributed around the first series and located in the exhaust path. At least one of the first and second series is rotatable in the housing to vary the relative angular positions of the first and second series. The restrictor portions are arranged such that the first portions align with the second portions at each of a plurality of relative angular positions to open flow channels between the portions and such that they misalign between those positions to close the flow channels.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: December 25, 2018
    Assignee: Imperial Innovations Limited
    Inventors: Ricardo Martinez-Botas, Harminder Flora, Srithar Rajoo, Apostolos Pesiridis, Colin Copeland
  • Publication number: 20180156060
    Abstract: A flow-control assembly for guiding a flow of fluid having a variable mass flow rate onto a turbine comprising: a turbine comprising a blade and configured to rotate about an axis of rotation; and a flow-guidance element in fluid communication with the turbine and comprising a flow-guiding vane and configured to guide a flow of fluid at a relative fluid flow angle to rotate the turbine about the axis of rotation; wherein the flow-guidance element is configured to rotate about the same axis of rotation as the turbine so as to alter the variation of the relative fluid flow angle at turbine ingress arising from varying mass flow rate in the flow of fluid.
    Type: Application
    Filed: June 8, 2016
    Publication date: June 7, 2018
    Inventors: Ricardo Martinez-Botas, Kun Cao
  • Patent number: 9845770
    Abstract: An asymmetric double-entry turbine is provided with a turbine housing that includes a first volute, a second volute and a turbine receiving bore. The first volute has a first exhaust gas inlet and a first exhaust gas outlet. The second volute has a second exhaust gas inlet and a second exhaust gas outlet. The turbine receiving bore is in fluid communication with the first exhaust gas outlet and the second exhaust gas outlet for conducting a flow of exhaust gas from the first exhaust gas outlet and the second exhaust gas outlet out in an axial direction. The first exhaust gas outlet has an angular opening amount of more than 180 degrees around the turbine receiving bore. The second exhaust gas outlet has an angular opening amount of less than 180 degrees around the turbine receiving bore.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: December 19, 2017
    Assignee: Imperial Innovations Limited
    Inventors: Ricardo Martinez-Botas, Masakazu Sakai
  • Publication number: 20160319683
    Abstract: A turbine is provided with a turbine rotor blade, and a turbine housing having a scroll part extending along a circumferential direction of the turbine rotor blade. The scroll part is configured such that an A/R ratio of a flow passage area A to a distance R between an axis of the turbine rotor blade and a flow passage center of the scroll part has a concave distribution at least in a part of a graph where an abscissa represents a circumferential position around the axis of the turbine rotor blade and an ordinate represents the A/R ratio.
    Type: Application
    Filed: January 5, 2015
    Publication date: November 3, 2016
    Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., IMPERIAL INNOVATIONS LTD
    Inventors: Takao YOKOYAMA, Seiichi IBARAKI, Ricardo MARTINEZ-BOTAS, Mingyang YANG
  • Patent number: 9388707
    Abstract: A flow control device for a turbocharger, the flow control device comprising a variably restricting flow restrictor for restricting flow in a turbocharger inlet by a variable amount, the flow control device being arranged such that the flow restrictor position varies flow restriction in response to force acting on a surface of the flow restrictor caused by a pressure pulse in a flow direction, the flow restrictor being biased in a direction opposed to the flow direction.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: July 12, 2016
    Assignee: IMPERIAL INNOVATIONS LIMITED
    Inventors: Ricardo Martinez-Botas, Srithar Rajoo, Apostolos Pesiridis, Harminder Flora
  • Publication number: 20160131154
    Abstract: A centrifugal compressor is disclosed. The centrifugal compressor comprises an inlet and an impeller comprising a hub and blades. The inlet is for conveying flow to the impeller comprising guide means and is arranged to guide the flow through the inlet to induce swirl in the flow adjacent tips of the blades, the direction of swirl being the direction of rotation of the blades, without substantially disturbing flow adjacent the hub.
    Type: Application
    Filed: May 9, 2014
    Publication date: May 12, 2016
    Inventors: Mingyang Yang, Ricardo Martinez-Botas
  • Publication number: 20160084156
    Abstract: A variable flow-restricting turbine assembly for a turbocharger is disclosed. The assembly comprises a housing, a turbine mounted for rotation in the housing, and a variable flow-restrictor. The variable flow-restrictor comprises a first series of angularly-distributed flow-restrictor portions distributed around the turbine wheel and located in an exhaust flow path to the wheel, and a second series of angularly-distributed flow-restrictor portions distributed around the first series and located in the exhaust path. At least one of the first and second series is rotatable in the housing to vary the relative angular positions of the first and second series. The restrictor portions are arranged such that the first portions align with the second portions at each of a plurality of relative angular positions to open flow channels between the portions and such that they misalign between those positions to close the flow channels.
    Type: Application
    Filed: May 13, 2014
    Publication date: March 24, 2016
    Inventors: Ricardo Martinez-Botas, Harminder Flora, Srithar Rajoo, Apostolos Pesiridis, Colin Copeland
  • Publication number: 20160025044
    Abstract: An asymmetric double-entry turbine is provided with a turbine housing that includes a first volute, a second volute and a turbine receiving bore. The first volute has a first exhaust gas inlet and a first exhaust gas outlet. The second volute has a second exhaust gas inlet and a second exhaust gas outlet. The turbine receiving bore is in fluid communication with the first exhaust gas outlet and the second exhaust gas outlet for conducting a flow of exhaust gas from the first exhaust gas outlet and the second exhaust gas outlet out in an axial direction. The first exhaust gas outlet has an angular opening amount of more than 180 degrees around the turbine receiving bore. The second exhaust gas outlet has an angular opening amount of less than 180 degrees around the turbine receiving bore.
    Type: Application
    Filed: March 14, 2014
    Publication date: January 28, 2016
    Inventors: Ricardo Martinez-Botas, Masakazu Sakai
  • Patent number: 8904784
    Abstract: A flow control device for a turbocharger (100) includes a flow restrictor (102) with a variable position for variably restricting flow in a turbocharger inlet. A controller (312) controls the position of the flow restrictor based on sensed pressure (300) in the turbocharger inlet (301).
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: December 9, 2014
    Assignee: Imperial Innovations Limited
    Inventors: Apostolos Pesiridis, Ricardo Martinez-Botas, Srithar Rajoo, Harminder Flora
  • Publication number: 20110072815
    Abstract: A flow control device for a turbocharger (100) includes a flow restrictor (102) with a variable position for variably restricting flow in a turbocharger inlet. A controller (312) controls the position of the flow restrictor based on sensed pressure (300) in the turbocharger inlet (301).
    Type: Application
    Filed: December 6, 2005
    Publication date: March 31, 2011
    Applicant: IMPERIAL INNOVATIONS INNOVATIONS LIMITED
    Inventors: Apostolos Pesiridis, Ricardo Martinez-Botas, Srithar Rajoo, Harminder Flora
  • Publication number: 20100293942
    Abstract: A flow control device for a turbocharger, the flow control device comprising a variably restricting flow restrictor for restricting flow in a turbocharger inlet by a variable amount, the flow control device being arranged such that the flow restrictor position varies flow restriction in response to force acting on a surface of the flow restrictor caused by a pressure pulse in a flow direction, the flow restrictor being biased in a direction opposed to the flow direction.
    Type: Application
    Filed: April 18, 2008
    Publication date: November 25, 2010
    Applicant: IMPERIAL INNOVATIONS LIMITED
    Inventor: Ricardo Martinez-Botas