Patents by Inventor Pawel TWAROWSKI

Pawel TWAROWSKI 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).

  • Centrifugal compressors with integrated intercooling
    Patent number: 10731664
    Abstract: A compressor comprising: a casing; an upstream impeller and a downstream impeller for rotation in the casing; a diaphragm comprised of an internal portion and an external portion; an upstream diffuser fluidly coupled to an outlet of the upstream impeller; a return channel fluidly coupled to the upstream diffuser and to an inlet of the downstream impeller, the return channel has a plurality of return-channel blades connecting the internal and external diaphragm portions; and a downstream diffuser fluidly coupled to an outlet of the downstream impeller is disclosed. A first coolant passage is in the internal diaphragm portion and extends around an inner core, the first coolant passage being in heat-exchange relationship with the upstream diffuser and the return channel. A second coolant passage and third coolant passage are separated by a second inner core in the external diaphragm portion and in a heat-exchange relationship with the return channel and the downstream diffuser.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: August 4, 2020
    Assignee: NUOVO PIGNONE TECHNOLOGIE SRL
    Inventors: Giuseppe Iurisci, Christian Aalburg, Giuseppe Sassanelli, Luciano Mei, Simon Schoewel, Pawel Twarowski, Marek Watrobski
  • CENTRIFUGAL COMPRESSORS WITH INTEGRATED INTERCOOLING
    Publication number: 20170306979
    Abstract: A compressor comprising: a casing; an upstream impeller and a downstream impeller for rotation in the casing; a diaphragm comprised of an internal portion and an external portion; an upstream diffuser fluidly coupled to an outlet of the upstream impeller; a return channel fluidly coupled to the upstream diffuser and to an inlet of the downstream impeller, the return channel has a plurality of return-channel blades connecting the internal and external diaphragm portions; and a downstream diffuser fluidly coupled to an outlet of the downstream impeller is disclosed. A first coolant passage is in the internal diaphragm portion and extends around an inner core, the first coolant passage being in heat-exchange relationship with the upstream diffuser and the return channel. A second coolant passage and third coolant passage are separated by a second inner core in the external diaphragm portion and in a heat-exchange relationship with the return channel and the downstream diffuser.
    Type: Application
    Filed: August 27, 2015
    Publication date: October 26, 2017
    Inventors: Giuseppe IURISCI, Christian AALBURG, Giuseppe SASSANELLI, Luciano MEI, Simon SCHOEWEL, Pawel TWAROWSKI, Marek WATROBSKI