Patents Assigned to Delavan Inc.
  • Patent number: 10144061
    Abstract: A globule for an additive manufacturing process includes a plurality of additive manufacturing stock particles respectively having a submicron size. A binder fixes the plurality of submicron size additive manufacturing stock particles to one another such that the particles form a globule having a size of less than fifty microns.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: December 4, 2018
    Assignee: Delavan Inc.
    Inventor: Sergey Mironets
  • Patent number: 10132500
    Abstract: An injector includes a fuel distributor with a first fluid inlet and a first fluid outlet, with a first fluid circuit for fluid communication between the first fluid inlet and the first fluid outlet. The fuel distributor includes a second fluid inlet and a second fluid outlet, with a second fluid circuit for fluid communication between the second fluid inlet and outlet. The fuel distributor defines a spray axis. The first and second fluid outlets can be radially adjacent and/or can be substantially aligned axially relative to the spray axis, e.g., for issuing multiple different fuels from substantially the same outlet.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: November 20, 2018
    Assignee: DELAVAN INC.
    Inventors: Jason A. Ryon, Lev A. Prociw
  • Patent number: 10099325
    Abstract: A method for manufacturing a heat exchanger structure includes additively forming a top layer of a header after disposing a corrugated core within the header to retain the corrugated core within the header. Additively forming the top layer can include filling the corrugated core with powder until a suitable layer of powder overlays the corrugated core and the header and sintering the powder to form the top layer of the header.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: October 16, 2018
    Assignee: Delavan Inc.
    Inventors: Matthew Donovan, Sergey Mironets
  • Patent number: 10094352
    Abstract: A nozzle for injecting liquid includes a nozzle body defining a plurality of injection point orifices and an annular prefilmer positioned downstream of the injection point orifices for prefilming impingement of spray from the injection point orifices on the prefilmer. A swirl antechamber can be defined upstream of the injection point orifices for supplying a swirling liquid flow to the injection point orifices for impingement of a swirling flow on the prefilmer.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: October 9, 2018
    Assignee: Delavan Inc.
    Inventors: Philip E. O. Buelow, Jason A. Ryon, John E. Short
  • Publication number: 20180252411
    Abstract: A fuel nozzle for a gas turbine engine includes a feed arm including a fuel passage for issuing a spray of fuel. A nozzle assembly is fixed at an upstream end of the feed arm having a fuel inlet in fluid communication with the fuel passage. A fiber optic cable is configured to collect burner radiation for a pyrometer input and has a first end centered within an optical connector of the nozzle assembly and a second end exposed from the spray outlet. The fiber optic cable fitted within the feed arm and nozzle assembly has a permanent bend radius preformed in the fiber optic cable. The bend radius can be equal to or greater than the minimum bend radii for the fiber optic cable to serve as a wave guide in wavelengths for monitoring combustion.
    Type: Application
    Filed: May 4, 2018
    Publication date: September 6, 2018
    Applicant: Delavan Inc.
    Inventor: Bruce D. Paradise
  • Patent number: 10041679
    Abstract: A combustor for a gas turbine engine includes an inner combustor wall and an outer combustor wall radially outboard of the inner combustor wall. The inner and outer combustor walls define a combustion space therebetween with an upstream inlet and a downstream outlet. A combustor dome connects between inner and outer combustor walls at the upstream inlet of the combustion space. The combustor dome includes a plurality of circumferentially spaced apart nozzles and a plurality of tiles mounted to the combustor dome to fluidly separate a downstream side of the combustor dome from an upstream side of the combustor dome.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: August 7, 2018
    Assignee: DELAVAN INC
    Inventor: Lev A. Prociw
  • Patent number: 10041171
    Abstract: A particulate for an additive manufacturing technique includes metallic particulate bodies with exterior surfaces bearing a polymeric coating. The polymeric coating is conformally disposed over the exterior surface that prevents the underlying metallic body from oxidation upon exposure to the ambient environment by isolating the metallic particulate bodies from the ambient environment. Feedstock materials for additive manufacturing techniques, and methods of making such feedstock, are also disclosed.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: August 7, 2018
    Assignee: Delavan Inc.
    Inventors: Ying She, Michael A. Klecka, Tahany I. El-Wardany, Anais Espinal, Wayde R. Schmidt, Sameh Dardona
  • Patent number: 10029307
    Abstract: An additive manufacturing build plate system includes a plate body defining a build surface and a rear surface opposite the build surface. A peripheral surface extends between the rear surface and the build surface. At least one gripping feature is defined in the peripheral surface, extending inwardly into the plate body between the build surface and the rear surface.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: July 24, 2018
    Assignee: DELAVAN INC
    Inventors: Lukas Shea, Joseph Samo
  • Patent number: 10005239
    Abstract: A support structure for an additive manufacturing system includes a support body with a support body material and an interface disposed on the support body with an interface material. The interface material has a ductile-to-brittle transition temperature that is higher than the ductile-to-brittle temperature of the support body material for selectively fracturing the interface material to separate an additively manufactured article from the support body.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: June 26, 2018
    Assignee: Delavan Inc.
    Inventors: Kiley J. Versluys, Sergey Mironets
  • Patent number: 10001280
    Abstract: One embodiment includes a fuel injector for a gas turbine engine. The fuel injector has an inlet fitting for receiving fuel. The fuel injector also has an outlet fitting for delivering fuel through a nozzle to a combustor of the gas turbine engine. An injector support extends between the inlet fitting and the outlet fitting and has an internal bore therethrough. A fuel tube extends from the inlet fitting through the internal bore of the injector support to the outlet fitting. The injector support has a greater coefficient of thermal expansion than the fuel tube. At room temperature the fuel tube is under compressive stress such that the fuel tube is buckled. As a result of differential thermal expansion of the fuel tube and the injector support during engine operation the fuel tube is relieved of compressive stress.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: June 19, 2018
    Assignee: Delavan Inc.
    Inventor: Mark Caples
  • Patent number: 9989257
    Abstract: A fuel system includes a fuel supply system. A plurality of fuel nozzles are connected in fluid communication with the fuel supply system to supply fuel from a fuel source to be issued for combustion from the fuel nozzles. A cooling system is included, wherein at least one of the fuel nozzles includes a cooling circuit in addition to a fuel circuit for issuing fuel from the fuel supply system for combustion. The cooling circuit includes an inlet and an outlet. The inlet is in fluid communication with the cooling system for circulation of coolant through the cooling circuit and back to the cooling system out the outlet of the cooling circuit for cooling the fuel circuit with the fuel circuit staged off.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: June 5, 2018
    Assignee: Delavan Inc
    Inventors: Lev A. Prociw, Timothy Griffith
  • Patent number: 9989187
    Abstract: A strain reliever for a hollow tube is disclosed. The strain reliever has a fitting dimensioned to fit at a tube segment and a tapered sleeve extending from the fitting. The tapered sleeve is configured to surround the tube segment and to provide relief of strain imposed by forces exerted on the tube. Strain relievers having helical conic and slotted tapered sleeves are also described.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: June 5, 2018
    Assignee: Delavan Inc.
    Inventors: Randy Siders, Brandon Phillip Williams, David H. Bretz
  • Patent number: 9988721
    Abstract: A method includes additively manufacturing an article in an inert environment, removing the article from the inert environment and placing the article in a non-inert environment, allowing at least a portion the article to oxidize in the non-inert environment to form an oxidized layer on a surface of the article, and removing the oxidized layer (e.g., to smooth the surface of the article). The method can further include relieving stress in the article (e.g., via heating the article after additive manufacturing).
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: June 5, 2018
    Assignee: Delavan, Inc.
    Inventors: Sergey Mironets, William L. Wentland, Matthew Donovan, Thomas J. Ocken, Robert Bianco
  • Patent number: 9976486
    Abstract: A method for producing a device having at least one internal feature includes manufacturing an internal volume of the internal features out of a first material, disposing the internal volume in a parent material that has a higher melting point than the first material, causing the internal volume to melt within the parent material, and allowing at least a portion of the first material to diffuse into the parent material, thereby leaving behind the at least one internal feature within the parent material.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: May 22, 2018
    Assignee: Delavan Inc.
    Inventors: Sergey Mironets, Matthew Donovan
  • Patent number: 9976745
    Abstract: A fuel nozzle for a gas turbine engine includes a feed arm including a fuel passage for issuing a spray of fuel. A nozzle assembly is fixed at an upstream end of the feed arm having a fuel inlet in fluid communication with the fuel passage. A fiber optic cable is configured to collect burner radiation for a pyrometer input and has a first end centered within an optical connector of the nozzle assembly and a second end exposed from the spray outlet. The fiber optic cable fitted within the feed arm and nozzle assembly has a permanent bend radius preformed in the fiber optic cable. The bend radius can be equal to or greater than the minimum bend radii for the fiber optic cable to serve as a wave guide in wavelengths for monitoring combustion.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: May 22, 2018
    Assignee: Delavan Inc.
    Inventor: Bruce D. Paradise
  • Publication number: 20180111063
    Abstract: A fuel stabilization system for removing oxygen from fuel includes an accumulator disposed along a fuel line, the accumulator includes a fuel inlet and a fuel outlet and a heat source disposed in thermal communication with the fuel in or upstream of the fuel inlet of the accumulator to increase the temperature of the fuel within the accumulator. The accumulator is configured to allow oxygen deposits to form therein as a result of the temperature increase of the fuel.
    Type: Application
    Filed: October 25, 2016
    Publication date: April 26, 2018
    Applicant: Delavan Inc
    Inventors: Stephen E. Tongue, Jonathan Rheaume, Haralambos Cordatos
  • Patent number: 9939155
    Abstract: A swirler includes a swirler body and a plurality of axial swirl vanes extending radially outward from the swirler body. At least one of the swirler body or vanes includes a spring channel defined therethrough. A fuel injector for a gas turbine engine can include an inner air swirler and/or outer air swirler as described above.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: April 10, 2018
    Assignee: Delavan Inc.
    Inventors: Brett A. Pfeffer, Jason A. Ryon
  • Patent number: 9925723
    Abstract: An additive manufacturing system includes a build platform and an illuminator disposed on opposite sides of a powder carrier relative to gravity. The powder carrier has a movement envelop that intersects the beam path and includes a material that is translucent to radiation emitted by the illuminator such that the emitted radiation traverses the powder carrier and fuses powder from a powder bed carried by the powder carrier with a substrate overlying the powder carrier and suspended from the build platform.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: March 27, 2018
    Assignee: Delavan Inc.
    Inventor: Sergey Mironets
  • Patent number: 9909999
    Abstract: An inspection method include introducing a mixture of expanding foam and a particulate material into a region of interest of an object, fixing the powder within the region of the interest relative to the object, and acquiring image data of the object and particulate mixture using an x-ray source and an x-ray detector. The particulate has a density that is greater than the density of a material forming the object to provide contrast between the region of interest and the object in an image generated using the image data.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: March 6, 2018
    Assignee: Delavan Inc.
    Inventors: Eric Karlen, William L. Wentland
  • Patent number: 9901944
    Abstract: An atomizer includes an atomizer body with a plurality of air passages defined therethrough from an upstream end of the atomizer body to a downstream end thereof. The air passages together define an air circuit through the atomizer body. A fuel circuit is defined in the atomizer body extending from a fuel inlet to a respective fuel outlet opening into each air passage. The air passages can be arranged circumferentially about a central axis defined by the atomizer body. The fuel circuit can include a manifold extending circumferentially about the atomizer body in fluid communication with a fuel opening in each respective air passage.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: February 27, 2018
    Assignee: DELAVAN INC
    Inventors: Jason A. Ryon, Philip E. Buelow, Steven L. Smith, Lev A. Prociw