Patents Assigned to Delavan Inc.
  • ADDITIVE MANUFACTURE OF ELECTRICALLY CONDUCTIVE MATERIALS
    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
  • BULK METALLIC GLASS COMPONENTS
    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
  • Multipoint fuel injection arrangements
    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
  • Active purge mechanism with backflow preventer for gas turbine fuel injectors
    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
  • VARIABLE ANGLE SPRAY CONE INJECTION
    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
  • AIRBLAST INJECTORS
    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
  • Swirl slot relief in a liquid swirler
    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
  • Compensating for thermal expansion via controlled tube buckling
    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
  • Impulse duty cycle valves
    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
  • ADDITIVE MANUFACTURE OF INTERIOR PASSAGES
    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
  • AIR ENTRANCE EFFECT
    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
  • Retention feature for fuel injector nozzle
    Patent number: 9581121
    Abstract: A nozzle for a fuel injector can include an outer air swirler having an inner surface with the outer air swirler having a groove on the inner surface and a prefilmer located concentrically within the outer air swirler with the prefilmer having at least one detent finger to engage the groove on the inner surface of the outer air swirler. The nozzle can also include a fuel swirler located concentrically within the prefilmer and configured to convey fuel to a forward end of the nozzle with the fuel swirler having at least one tab extending axially at an aft end, and an inner air swirler having a cylindrical forward end located concentrically within the fuel swirler and an aft support extending radially outward to contact the outer air swirler with the cylindrical forward end contacting at least one tab of the fuel swirler to hold the fuel swirler in place.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: February 28, 2017
    Assignee: Delavan Inc.
    Inventors: Jason Ryon, Mark Caples, John David Canny, Nicole L. Nelson
  • Double swirl chamber swirlers
    Patent number: 9573146
    Abstract: A swirler for swirling fluid in a nozzle has a swirler body. The swirler body defines an inlet end, an outlet end opposed to the inlet end, and a circumferential periphery. The circumferential periphery extends axially from the inlet end to the outlet end. The outlet end defines a first swirl chamber. The inlet end defines a second swirl chamber.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: February 21, 2017
    Assignees: Delavan Inc, Delavan Limited
    Inventors: Lev A. Prociw, Frank Whittaker, Neil Smith
  • Three-piece airblast fuel injector
    Patent number: 9574776
    Abstract: A fuel system includes an external cool air source, and a fuel injector. The fuel injector includes a fuel circuit, an outer air circuit, an inner air circuit, and an outlet. The fuel circuit receives liquid fuel from a fuel inlet. The outer air circuit receives cool air from the cool air source and substantially surrounds the fuel circuit. The inner air circuit is in fluid communication with the outer air circuit and a portion of the fuel circuit substantially surrounds the inner air circuit. The outlet provides atomized fuel from the fuel circuit, outer air circuit and inner air circuit to a combustor.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: February 21, 2017
    Assignee: Delavan Inc.
    Inventors: Philip Buelow, Nicole L. Nelson
  • Continuous ignition systems
    Patent number: 9567912
    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: Grant
    Filed: January 31, 2014
    Date of Patent: February 14, 2017
    Assignee: Delavan Inc
    Inventors: Lev A. Prociw, Jason A. Ryon, Steven J. Myers
  • IMAGE CONDUIT FOR FUEL NOZZLE ASSEMBLIES
    Publication number: 20170038073
    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: August 7, 2015
    Publication date: February 9, 2017
    Applicant: Delavan Inc
    Inventor: Bruce D. Paradise
  • Integrated heat shield
    Patent number: 9556795
    Abstract: A fuel injector for a gas turbine engine includes a nozzle tip assembly having a substantially monolithically formed nozzle body. The nozzle body has an annular outlet chamber for issuing a spray from the nozzle tip. A feed channel is in fluid communication with the outlet chamber through a feed passage. A heat shield void substantially surrounds the feed channel(s).
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: January 31, 2017
    Assignee: Delavan Inc
    Inventors: Jason A. Ryon, Brett A. Pfeffer, Matthew R. Donovan, Philip E. Buelow
  • High temperature fuel manifold for gas turbine engines
    Patent number: 9556796
    Abstract: A segment of a fluid manifold includes a flexible thermal shield with an insulation space defined inboard of the thermal shield to provide thermal isolation from conditions external to the thermal shield. The thermal shield includes a helically corrugated metal tube having opposed first and second ends. An outer collar is threaded to an end of the helically corrugated metal tube. The outer collar includes a crimped portion and an uncrimped portion. The uncrimped portion is spaced apart from the corrugated helical metal tube more than the crimped portion to define a vent between the outer collar and the corrugated helical metal tube in venting communication with the insulation space to vent hot gases.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: January 31, 2017
    Assignee: Delavan Inc
    Inventor: Daniel Edward Bleeker
  • BRAZE JOINTS
    Publication number: 20160375516
    Abstract: A method of manufacturing includes depositing a first braze material to a first joint location between a first component having a first coefficient of thermal expansion and an intermediate component. The first component is fitted to the intermediate component at room temperature at the first joint location. A second braze material is deposited to a second joint location between the intermediate component and a second component having a second coefficient of thermal expansion. The second component is fitted to the intermediate component at room temperature at the second joint location. The intermediate component has a coefficient of thermal expansion between the first coefficient of thermal expansion and the second coefficient of thermal expansion.
    Type: Application
    Filed: June 25, 2015
    Publication date: December 29, 2016
    Applicant: Delavan Inc
    Inventor: Jerry Logsdon
  • BRAZE CLADDING
    Publication number: 20160325369
    Abstract: A method of manufacturing includes depositing a predetermined amount of braze material directly to a joint location of a first component and joining the first component to a second component at the braze joint location. The method also optionally includes depositing a predetermined amount of braze material directly to a joint location of the second component. Machining down the braze material on each of the first and second components can be used to provide a preformed braze joint.
    Type: Application
    Filed: May 5, 2015
    Publication date: November 10, 2016
    Applicant: DELAVAN INC
    Inventors: Lev A. Prociw, Jason A. Ryon, Steven J. Myers, Michael J. Bronson