Patents by Inventor Lev A. Prociw

Lev A. Prociw 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).

  • CONTINUOUS IGNITION SYSTEMS
    Publication number: 20140366505
    Abstract: A head assembly for an ignition system includes a head block and a plurality of igniters seated in the head block. The head block has an issue aperture and defines an issue axis, and is configured and adapted for sealably coupling with an igniter combustion chamber. The igniters are arranged about the issue aperture and include respective ignition members arranged obliquely with respect to the issue axis for igniting fuel exiting the issue aperture irrespective to orientation of the ignition system.
    Type: Application
    Filed: January 31, 2014
    Publication date: December 18, 2014
    Applicant: DELAVAN INC
    Inventors: Lev A. Prociw, Jason A. Ryon, Steven J. Myers
  • Reverse flow combustor duct attachment
    Patent number: 8864492
    Abstract: A reverse flow combustor has an inlet end. A flowpath extends downstream from the inlet end through a turn. The turn directs the flowpath radially inward and reversing an axial flow direction. A large exit duct (LED) is along the turn. A small exit duct (SED) is along the turn and joined by a joint to a mounting structure to resist separation in a first axial direction. The joint comprises: a first surface on the SED facing partially radially inward; and a mounting feature engaging the first surface.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: October 21, 2014
    Assignees: United Technologies Corporation, Pratt & Whitney Canada Corp.
    Inventors: Jun Shi, David C. Jarmon, Lee A. Hoffman, David J. Bombara, Shaoluo L. Butler, Lev A. Prociw, Aleksandar Kojovic
  • Reverse Flow Combustor Duct Attachment
    Publication number: 20120328996
    Abstract: A reverse flow combustor has an inlet end. A flowpath extends downstream from the inlet end through a turn. The turn directs the flowpath radially inward and reversing an axial flow direction. A large exit duct (LED) is along the turn. A small exit duct (SED) is along the turn and joined by a joint to a mounting structure to resist separation in a first axial direction. The joint comprises: a first surface on the SED facing partially radially inward; and a mounting feature engaging the first surface.
    Type: Application
    Filed: June 23, 2011
    Publication date: December 27, 2012
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Jun Shi, David C. Jarmon, Lee A. Hoffman, David J. Bombara, Shaoluo L. Butler, Lev A. Prociw
  • MODULAR FUEL NOZZLE AND METHOD OF MAKING
    Publication number: 20080054101
    Abstract: A modular fuel nozzle configuration is defined which permits lower-cost manufacturing operations such as injection moulding to be employed. Also described is a method of making such a component.
    Type: Application
    Filed: May 22, 2007
    Publication date: March 6, 2008
    Inventors: Lev Prociw, Joseph Brand
  • Positioning arrangement for components of a pressure vessel and method
    Publication number: 20080006641
    Abstract: The positioning arrangement comprises at least one pair of complimentary rounded recesses, each recess being provided on the mating face of the corresponding component. One ball is positioned between each pair of complementary recesses.
    Type: Application
    Filed: February 22, 2005
    Publication date: January 10, 2008
    Inventors: Lev Prociw, Aleksandar Kojovic
  • Method of computing spray parameters from optical patternation
    Publication number: 20070242871
    Abstract: The present invention provides a method of computing fuel nozzle spray parameters comprising steps of using a virtual or physical information collector which is divided into a plurality of regions to collect information relating to a spray of a fuel nozzle and analyzing the information collected in the individual regions of the collector to determine quantitative values of the spray parameters of the fuel nozzle.
    Type: Application
    Filed: March 23, 2006
    Publication date: October 18, 2007
    Inventors: Lev Prociw, Harris Shafique, Patrice Fiset
  • Calibration of optical patternator spray parameter measurements
    Publication number: 20070236693
    Abstract: The present invention provides a method of calibrating a fuel nozzle patternation system comprising steps of testing a master nozzle having desired spray characteristics in the system to determine a virtual origin of the system and then using the virtual origin to replace a fixed spatial origin of the system for testing other nozzles of the same nozzle family.
    Type: Application
    Filed: March 23, 2006
    Publication date: October 11, 2007
    Inventors: Lev Prociw, Harris Shafique, Patrice Fiset
  • Foam core heat exchanger and method
    Publication number: 20070234565
    Abstract: A method for manufacturing a heat exchanger, including forming at least one flexible heat exchanging assembly with first and second adjacent conduits defined therein, shaping the flexible heat exchanging assembly, and heating the heat exchanging assembly to transform at least a portion of the flexible heat conducting material into a rigid heat conducting material.
    Type: Application
    Filed: September 30, 2005
    Publication date: October 11, 2007
    Inventor: Lev Prociw
  • MODULAR FUEL NOZZLE AND METHOD OF MAKING
    Publication number: 20070234569
    Abstract: A modular fuel nozzle configuration is defined which permits lower-cost manufacturing operations such as injection moulding to be employed. Also described is a method of making such a component.
    Type: Application
    Filed: May 22, 2007
    Publication date: October 11, 2007
    Inventors: Lev Prociw, Joseph Brand
  • Internally mounted device for a pressure vessel
    Publication number: 20070137218
    Abstract: An assembly for sealingly mounting a device in a hole in a pressure vessel casing, the assembly transferring a load produced by pressurized fluid to the casing and retaining the stem to the casing.
    Type: Application
    Filed: December 15, 2005
    Publication date: June 21, 2007
    Inventors: Lev Prociw, Aleksandar Kojovic, Honza Stastny
  • Combustor swirler and method of manufacturing same
    Publication number: 20070137208
    Abstract: A combustor swirler for a gas turbine engine and method of manufacturing by injection moulding an inner component and an outer cylindrical component. Indentations are moulded in of the inner and outer component and sealed by the engagement of the components together to form a series of fluid flow passages.
    Type: Application
    Filed: December 20, 2005
    Publication date: June 21, 2007
    Inventors: Lev Prociw, Harris Shafique, Aleksander Kojovic
  • Fuel nozzle and manifold assembly connection
    Publication number: 20070137209
    Abstract: A fuel supply assembly for a gas turbine engine including a manifold portion with a transfer conduit, a fuel nozzle with an entry conduit and disconnectable means for retaining the transfer and entry conduits in mating engagement with one another.
    Type: Application
    Filed: December 15, 2005
    Publication date: June 21, 2007
    Inventors: Lev Prociw, Alekaandar Kojovic
  • Reduced thermal stress assembly and process of making same
    Publication number: 20070107434
    Abstract: An assembly that includes two components joined by a pre-compressed braze where the compression in the braze is progressively relieved upon relative thermal expansion of the two components. Also disclosed is a process for producing a pre-compressed braze.
    Type: Application
    Filed: November 15, 2005
    Publication date: May 17, 2007
    Inventors: Lev Prociw, Harris Shafique, Dany Gaudet
  • HELICAL CHANNEL FOR DISTRIBUTOR AND METHOD
    Publication number: 20070101727
    Abstract: A method of distributing fuel in a fuel nozzle comprises: providing at least two helical channels in the fuel nozzle, each having a channel exit port, providing a fuel inlet cavity in fluid communication with the helical channels, and flowing fuel in the fuel inlet cavity, the helical channels and the channel exit ports.
    Type: Application
    Filed: December 21, 2006
    Publication date: May 10, 2007
    Inventor: Lev Prociw
  • Nested channel ducts for nozzle construction and the like
    Publication number: 20060260317
    Abstract: A multiple conduit system for a gas turbine engine, the multiple conduit system extending between a plurality of conduit inlet and outlets. A channel, adapted for conveying fuel flow, is formed in a surface of a gas turbine engine component. The channel includes at least a first discrete conduit and a second discrete conduit. The first and second discrete conduits are each adapted to direct an independent fluid flow from respective inlets to respective outlets.
    Type: Application
    Filed: January 25, 2006
    Publication date: November 23, 2006
    Inventors: Lev Prociw, Harris Shafique, John Sokalski, Claude Pelletier
  • Fuel conveying member with heat pipe
    Publication number: 20060218926
    Abstract: A fuel conveying member in a gas turbine engine includes a heat pipe disposed in heat transfer communication with a fuel flow passage thereof, such that heat is transferred by the heat pipe from a high temperature region to a lower temperature region of the fuel flow passage.
    Type: Application
    Filed: April 1, 2005
    Publication date: October 5, 2006
    Inventors: Lev Prociw, Harris Shafique
  • Internal fuel manifold with airblast nozzles
    Publication number: 20060218925
    Abstract: A gas turbine engine internal fuel manifold has a plurality of airblast fuel nozzles in communication with an air source such that nozzle core air does not pass through the manifold.
    Type: Application
    Filed: April 1, 2005
    Publication date: October 5, 2006
    Inventors: Lev Prociw, Aleksandar Kojovic, Harris Shafique
  • Modular fuel nozzle and method of making
    Publication number: 20060208105
    Abstract: A modular fuel nozzle configuration is defined which permits lower-cost manufacturing operations such as injection moulding to be employed. Also described is a method of making such a component.
    Type: Application
    Filed: March 17, 2005
    Publication date: September 21, 2006
    Inventors: Lev Prociw, Joseph Brand
  • Low cost pressure atomizer
    Publication number: 20060175428
    Abstract: A spray device, useful for example as a fuel nozzle for gas turbine engines, comprises a body having a bore and a cap member having an orifice, the body and cap member in combination defining a chamber. Fluid passages introduce pressurized liquid into the chamber and direct a flow into the bore, thereby causing a spinning flow to be forced out through the orifice.
    Type: Application
    Filed: February 7, 2005
    Publication date: August 10, 2006
    Inventors: Lev Prociw, Joseph Brand
  • Variable arc gap plasma igniter
    Publication number: 20060175306
    Abstract: A variable arc gap plasma igniter element includes electrodes moveable relative to each other. The electrodes are preferably set to define a smaller air gap to initiate a plasma arc and later extended to obtain longer plasma arc.
    Type: Application
    Filed: February 7, 2005
    Publication date: August 10, 2006
    Inventors: Lev Prociw, Dany Gaudet