Patents Assigned to Delavan Inc.
  • Patent number: 9897321
    Abstract: A nozzle includes a nozzle body defining a longitudinal axis. The nozzle body includes an air passage having a radial swirler and a converging conical cross-section. A fuel circuit is radially outboard from the air passage with respect to the longitudinal axis. The fuel circuit extends from a fuel circuit inlet to a fuel circuit annular outlet. The fuel circuit includes a plurality of helical passages to mitigate gravitational effects at low fuel flow rates. Each helical passage of the fuel circuit opens tangentially with respect to the fuel circuit annular outlet into an outlet of the air passage.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: February 20, 2018
    Assignee: Delavan Inc.
    Inventor: Lev Alexander Prociw
  • Patent number: 9863638
    Abstract: An air shroud for a nozzle includes an air shroud body defining an inlet and an outlet in fluid communication with one another to allow an outer airflow to issue therefrom, the air shroud body defining a downstream surface. A plurality of air wipe channels are defined within the air shroud body, wherein each of the plurality of air wipe channels is in fluid communication with at least one of a plurality of air wipe outlets and air wipe inlets. Each air wipe outlet is defined in the downstream surface of the air shroud body such that air can flow through each air wipe outlet and wipe the downstream surface of the air shroud body.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: January 9, 2018
    Assignee: Delavan Inc.
    Inventor: Matthew R. Donovan
  • Patent number: 9850579
    Abstract: A feedstock for a cold spray process includes a plurality of globule bodies. The globule bodies include a plurality of discrete particles bonded to one another to define porous globule bodies. The bonds between the particles are of sufficient strength such that the globule bodies can retain both the body integrity as well as the body shape when the body experiences acceleration from a conveying gas in a cold spray technique. Methods of making the feedstock and globule bodies are also described.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: December 26, 2017
    Assignee: Delavan, Inc.
    Inventors: Sergey Mironets, Thomas J. Martin, Aaron T. Nardi, Alexander Staroselsky
  • Patent number: 9835334
    Abstract: A nozzle includes a nozzle body defining longitudinal axis with a liquid circuit extending axially in a downstream direction from a liquid inlet to a spray orifice, and an air circuit, e.g. an inner air circuit, extending axially downstream from an upstream air inlet to an air outlet proximate the spray orifice. An air swirler, e.g., an inner air swirler is mounted in the air circuit, wherein at least a portion of the air swirler is flush with or protrudes axially upstream relative to the air inlet.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: December 5, 2017
    Assignee: Delavan Inc.
    Inventors: Jason A. Ryon, Philip E. Buelow
  • Patent number: 9765894
    Abstract: A dynamic seal assembly is disclosed for use in a valve having an upstream pressure side and a downstream pressure side, the dynamic seal assembly including an annular seal member having a generally C-shaped cross-section and including opposed upstream and downstream legs defining an internal cavity with an opening facing toward the upstream pressure side of the valve, wherein the upstream leg has a radial length that is greater than a radial length of the downstream leg and includes a retaining foot that extends angularly away from the upstream leg in an upstream direction at an angle of between about 0° and 90°, and a metallic spring is disposed within the internal cavity of the seal member for providing a constant sealing force to the seal member.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: September 19, 2017
    Assignee: DELAVAN INC
    Inventors: Neal A. Thomson, Andy W. Tibbs
  • Patent number: 9765972
    Abstract: A fuel injector for a gas turbine engine includes a monolithic nozzle body that defines within its interior one or more fuel circuits. Each fuel circuit includes an inlet, an outlet orifice, a main passage fluidly coupling the inlet with the outlet orifice, and a branch passage connected to the main passage. The branch passage connects to the main passage downstream of the inlet and upstream of the outlet orifice to form an effective metering flow area that is smaller than the flow area of the outlet orifice.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: September 19, 2017
    Assignee: Delavan Inc.
    Inventor: Gregory Zink
  • Patent number: 9745936
    Abstract: A nozzle for injecting liquid includes a nozzle body defining a flow channel and a swirl ante-chamber in fluid communication with the flow channel. An injection point orifice is defined in the swirl ante-chamber. The flow channel feeds into the swirl ante-chamber to impart a tangential flow component on fluids entering the swirl ante-chamber to generate swirl on a spray issuing from the injection point orifice. A second flow channel can be included in fluid communication with the swirl ante-chamber. The second flow channel feeds into the swirl ante-chamber in cooperation with or in opposition to the first flow channel. The first flow channel, second flow channel, and swirl ante-chamber are configured and adapted to adjust spray angle of a spray issuing from the injection point orifice by varying flow apportionment among the first and second flow channels.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: August 29, 2017
    Assignee: Delavan Inc
    Inventors: Jason Allen Ryon, Philip E. O. Buelow, John Earl Short
  • Patent number: 9724709
    Abstract: A swirl element for swirling fluid in a nozzle has a swirler body. The swirler body defines a feed channel including an axially oriented channel surface and a swirl chamber in fluid communication with the feed channel. The swirl chamber defines a radially oriented swirler surface substantially normal to the channel surface. The swirl chamber and the axially oriented channel are in fluid communication through a tangential slot for imparting swirl on fluids passing from the feed channel into the swirl chamber. The tangential slot includes a smoothly rounded surface transitioning from the channel surface to the swirler surface for providing a smooth, substantially separation free transition in fluid flow from the channel into the swirl chamber.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: August 8, 2017
    Assignees: Delavan Inc, Delavan Limited
    Inventors: Lev A. Prociw, Neil Smith, Frank Whittaker
  • Patent number: 9689571
    Abstract: A nozzle is provided including a fuel swirler having an outer wall, an interior wall, and a fuel flow path configured to receive a fuel flow. The fuel flow path extends from adjacent and inlet end of the nozzle to a discharge end of the nozzle and is arranged between the outer wall and the interior wall. The fuel flow path includes a first inlet portion and a volute. The first inlet portion is generally offset from a center of the fuel swirler.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: June 27, 2017
    Assignee: DELAVAN INC.
    Inventors: Jason Ryon, Philip Buelow
  • Publication number: 20170128981
    Abstract: A method of forming a bulk metallic glass (BMG) cladding includes bringing a BMG material to a temperature lower than or equal to the crystallization temperature of the BMG material, and at least in some embodiments greater than or equal to the glass transition temperature of the BMG material and. The method also includes depositing the BMG material onto a substrate with interlock surface features such that the BMG material interlocks with the interlock surface features of the substrate.
    Type: Application
    Filed: November 9, 2015
    Publication date: May 11, 2017
    Applicant: DELAVAN INC
    Inventors: Paul Sheedy, Sonia Tulyani, Neal Magdefrau
  • Publication number: 20170129009
    Abstract: A method of additive manufacturing includes depositing a layer of absorptive material onto a workpiece, depositing a layer of additive manufacturing stock powder onto the workpiece, and fusing the stock powder to the workpiece using a focused energy source at a wavelength wherein the absorptive material has a higher absorptivity at the wavelength of the focused energy source than the absorptivity of the stock powder at that wavelength. The focused energy source can be a laser, e.g., with a 1064 nm wavelength, for example.
    Type: Application
    Filed: November 9, 2015
    Publication date: May 11, 2017
    Applicant: DELAVAN INC
    Inventors: Vijay Jagdale, Tahany I. El-Wardany, Wayde R. Schmidt
  • Patent number: 9644844
    Abstract: A multipoint fuel injection system includes a plurality of fuel manifolds. Each manifold is in fluid communication with a plurality of injectors arranged circumferentially about a longitudinal axis for multipoint fuel injection. The injectors of separate respective manifolds are spaced radially apart from one another for separate radial staging of fuel flow to each respective manifold.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: May 9, 2017
    Assignee: Delavan Inc.
    Inventor: Lev Alexander Prociw
  • Patent number: 9638422
    Abstract: A fuel injector for a gas turbine engine includes an injector body having a feed arm with a nozzle body mounted thereto. A fuel conduit fluidly connects a fuel inlet portion of the feed arm to a fuel circuit in the nozzle body to form a fuel path through the injector body and an insulative gap is defined between the fuel conduit and an inside of the feed arm wall to thermally insulate the fuel path of the injector body. An aperture through the feed arm wall provides fluid communication between the insulative gap and ambient conditions existing on an outside of the feed arm wall.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: May 2, 2017
    Assignee: Delavan Inc.
    Inventors: Troy Hall, Mark Alan Caples
  • Publication number: 20170108223
    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: Application
    Filed: October 16, 2015
    Publication date: April 20, 2017
    Applicant: Delavan Inc
    Inventors: Jason A. Ryon, Lev A. Prociw
  • Publication number: 20170108222
    Abstract: A method of issuing a spray cone from a nozzle includes modulating flow to two separate first and second fluid circuits, each connected to a common injection point orifice to vary spray angle on a substantially hollow spray cone over time to create a full spray cone. Modulating can include controlling first and second flow modulators, connected to the first and second fluid circuits, respectively, to coordinate oscillating flow rate modulation of both of the first and second fluid circuits. Controlling can include controlling the oscillating flow rate modulation for the first flow modulator to be out of phase with, to be in antiphase with, to be vertically shifted in magnitude relative to, and/or to have an amplitude that is equal to that of the second flow modulator.
    Type: Application
    Filed: October 16, 2015
    Publication date: April 20, 2017
    Applicant: Delavan Inc
    Inventors: Jason A. Ryon, Philip E. Buelow, John E. Short
  • Patent number: 9625146
    Abstract: A swirler for inducing swirl on a liquid flow includes a swirler body defining a downstream end and an upstream end; a plurality of axial slots on an external surface of the swirler body, each of the plurality of axial slots having a slot entrance and a slot exit; and a slot relief at the slot exit. Each of the plurality of axial slots are helical and configured to impart swirl on the liquid flow as the liquid flow traverses through each of the slots.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: April 18, 2017
    Assignee: DELAVAN INC.
    Inventors: Steve Myers, Jason Ryon, Robert Fogarty
  • Patent number: 9625155
    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: January 3, 2014
    Date of Patent: April 18, 2017
    Assignee: Delavan Inc.
    Inventor: Mark Caples
  • Patent number: 9617919
    Abstract: A valve includes a valve housing having a fluid inlet and a fluid outlet with a longitudinal axis defined through the valve housing. The valve also includes a toggle mechanism configured and adapted to cycle flow from the fluid inlet to the fluid outlet through a plurality of different flow rates in response to repeated impulses. The toggle mechanism is also configured to hold flow rate steady between impulses.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: April 11, 2017
    Assignee: Delavan Inc.
    Inventors: Brandon P. Williams, Neal A. Thomson
  • Publication number: 20170080543
    Abstract: A method of additive manufacturing includes additively forming a workpiece. The workpiece defines an interior passage therethrough with a passage surface. Additively forming the workpiece includes additively forming a beam running through the interior passage spaced apart from the passage surface. The method also includes surface treating the passage surface using abrasive flow machining wherein an abrasive flow machining fluid is forced to flow between the beam and the passage surface. The beam can be removed from the workpiece after surface treating the passage surface.
    Type: Application
    Filed: September 22, 2015
    Publication date: March 23, 2017
    Applicant: Delavan Inc
    Inventor: Thomas J. Ocken
  • Publication number: 20170082288
    Abstract: A nozzle includes a nozzle body defining longitudinal axis with a liquid circuit extending axially in a downstream direction from a liquid inlet to a spray orifice, and an air circuit, e.g. an inner air circuit, extending axially downstream from an upstream air inlet to an air outlet proximate the spray orifice. An air swirler, e.g., an inner air swirler is mounted in the air circuit, wherein at least a portion of the air swirler is flush with or protrudes axially upstream relative to the air inlet.
    Type: Application
    Filed: September 18, 2015
    Publication date: March 23, 2017
    Applicant: Delavan Inc
    Inventors: Jason A. Ryon, Philip E. Buelow