Patents Assigned to Delavan Inc.
  • Fluid valves
    Patent number: 10487957
    Abstract: A fluid valve use in a turbomachine in a high temperature location includes a fluid inlet, a fluid outlet, a fluid circuit defined between the fluid inlet and the fluid outlet, and a solenoid including a solenoid casing. The solenoid is disposed between the fluid inlet and fluid outlet. The solenoid is configured to move a valve member between a closed position, at least one partially open position (e.g., any number of suitable positions), and a fully open position to selectively meter fluid flow through the fluid circuit. The fluid valve can include a valve casing, wherein the solenoid and valve member are disposed in the valve casing.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: November 26, 2019
    Assignee: Delavan Inc.
    Inventors: Daniel E. Bleeker, Francis P. Marocchini
  • Prevention of deposits on engine components
    Patent number: 10486167
    Abstract: A fuel and/or lubricant system for an engine can include an engine component configured to be in fluid communication with the fuel and/or lubricant, and an alternating current (AC) source electrically connected to the engine component to create an electric field of alternating polarity to subject particles within the fuel and/or lubricant to dielectrophoresis as the fuel and/or lubricant passes through the electric field to prevent deposits from forming on the engine component. In certain embodiments, the engine component can be a filter screen configured to filter the fuel and/or lubricant to subject particles within the fuel and/or lubricant to dielectrophoresis as the fuel and/or lubricant passes through the filter screen.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: November 26, 2019
    Assignee: Delavan Inc.
    Inventors: Rhonda R. Willigan, Haralambos Cordatos
  • Flange bending support
    Patent number: 10480790
    Abstract: An injector includes a mounting flange having a mounting lug with fastener bore therethrough that passes through the mounting flange. A support beam extends along an outer surface of the mounting flange from the mounting lug to a hub of the mounting flange. The support beam includes an outer surface spaced apart from the outer surface of the mounting flange and two opposed lateral surfaces each extending from the outer surface of the support beam toward the outer surface of the mounting flange. The outer surface of the support beam includes a contour and/or the support beam includes a stiffening beam that is wider than the width between the opposed lateral surfaces of the support beam.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: November 19, 2019
    Assignee: Delavan Inc.
    Inventors: Jacob Greenfield, Dustin Andrew Borror, Mark A. Caples
  • Variable angle multi-point injection
    Patent number: 10480472
    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: August 15, 2017
    Date of Patent: November 19, 2019
    Assignee: Delavan Inc.
    Inventors: Jason A. Ryon, Philip E. O. Buelow, John Earl Short
  • Injector fittings
    Patent number: 10436448
    Abstract: An injector includes a feed arm extending from an inlet fitting to a nozzle body opposite the inlet fitting. The nozzle body includes a spray outlet in fluid communication with the inlet fitting for issuing a spray of fluid supplied at the inlet fitting. The inlet fitting of the feed arm includes a receptacle therein for receiving a fluid supply manifold inside the inlet fitting of the feed arm.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: October 8, 2019
    Assignee: Delavan Inc.
    Inventors: Jason A. Ryon, Brett A. Pfeffer, Mark A. Caples, Daniel E. Bleeker
  • Dynamic valve seal having retaining features
    Patent number: 10428957
    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: September 15, 2017
    Date of Patent: October 1, 2019
    Assignee: Delavan Inc.
    Inventors: Andy W. Tibbs, Neal A. Thomson
  • Hydraulic plug
    Patent number: 10400932
    Abstract: A method of manufacturing a hydraulic plug includes providing a shell comprising a circumferential wall, a sealed end, an open end and a cylindrical cavity opening to the open end is provided. The open end of the shell is wider externally than the sealed end. A head of an expander is inserted into the cavity. The head of the expander has a convex contact surface which is rounded in an axial direction (A) of the cavity. A region of the shell adjacent its open end is plastically deformed causing material from the circumferential wall of the shell to be displaced radially inward around the head of the expander to form a constricted opening retaining the expander within the cavity. The deforming reshapes an internal surface of the cavity from a cylindrical to a non-linear shaped ramp leading up to a constricted opening.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: September 3, 2019
    Assignee: DELAVAN INC.
    Inventors: Marcin Cis, Piotr Sawicki
  • Smoke and soot removal systems for additive manufacturing
    Patent number: 10399323
    Abstract: An intake manifold for an additive manufacturing system includes a body defining a flow channel therein. The body includes an inlet end defining an inlet configured to intake gas and/or particles from a build area of the additive manufacturing system, and an outlet end defining an outlet that is fluidly connected to the inlet through the flow channel. The outlet is configured to be in fluid communication with an uptake manifold of the additive manufacturing system. The intake manifold also includes at least one mount extending from the outlet end of the body that is configured to rotatably mount the body to the uptake manifold.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: September 3, 2019
    Assignee: Delavan Inc.
    Inventor: Matthew Donovan
  • Fuel nozzles
    Patent number: 10385809
    Abstract: A nozzle includes a nozzle body defining a longitudinal axis. The nozzle body has an air passage, a fuel circuit radially outboard from the air passage with respect to the longitudinal axis, and a cooling circuit. The fuel circuit extends from a fuel circuit inlet to a fuel circuit annular outlet. The fuel circuit is defined between a fuel circuit inner wall and a fuel circuit outer wall. At least a portion of the fuel circuit outer wall is radially outboard from the fuel circuit inner wall with respect to the longitudinal axis. A cooling circuit is defined within at least one of the fuel circuit inner wall or the fuel circuit outer wall. The cooling circuit extends from an axial position proximate the fuel circuit inlet to an axial position proximate the fuel circuit outlet.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: August 20, 2019
    Assignee: Delavan Inc.
    Inventor: Lev A. Prociw
  • Thermal management for injectors
    Patent number: 10378446
    Abstract: An injector for a gas turbine engine includes a feed arm including a primary and a secondary fluid passage. An inlet assembly is fixed at an upstream end of the feed arm having at least one inlet in fluid communication with the primary and the secondary fluid passages. A tip assembly is fixed at a downstream end of the feed arm having a fluid outlet in communication with the primary and secondary fluid passages for issuing a spray of fluid. The primary and secondary fluid passages are monolithically formed within the feed arm. At least one of the primary and secondary fluid passages includes a nonlinear section configured to provide increased residence time for cooling fluid in the first and second fluid passages.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: August 13, 2019
    Assignee: Delavan Inc
    Inventor: Mark A. Caples
  • Fuel staging
    Patent number: 10364751
    Abstract: A fuel injector includes a feed arm with an inlet end and a nozzle body extending from the feed arm at an end opposite the inlet end. The nozzle body defines a prefilming chamber that opens into an annular outlet orifice for issuing a spray therefrom. A plurality of fuel circuits is defined from the inlet end of the feed arm to the prefilming chamber of the nozzle body. Each fuel circuit in the plurality of fuel circuits can include a single respective inlet opening at the inlet end of the feed arm, with a single respective conduit extending through the feed arm and nozzle body from the single respective inlet opening to a single respective outlet slot feeding into the prefilming chamber.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: July 30, 2019
    Assignee: Delavan Inc
    Inventors: Jason A. Ryon, Philip E. Buelow, Lev A. Prociw
  • Staged dual fuel radial nozzle with radial liquid fuel distributor
    Patent number: 10344981
    Abstract: A nozzle includes a nozzle body defining a longitudinal axis and including a primary distributor and a secondary distributor. The primary distributor has an inner air passage fed by a radial swirler; a first fuel circuit radially outboard from the inner air passage with respect to the longitudinal axis; a second fuel circuit radially outboard from the first fuel circuit with respect to the longitudinal axis, wherein each of the first fuel circuit and the second fuel circuit extends from a respective fuel circuit inlet to a respective annular fuel circuit outlet; and an outer air passage defined between a fuel circuit outer wall and an outer air passage wall, wherein the outer air passage is a converging non-swirling outer air passage. The secondary distributor similar to the primary distributor is downstream of the primary distributor with respect to the longitudinal axis.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: July 9, 2019
    Assignee: Delavan Inc.
    Inventors: Lev Alexander Prociw, Jason A. Ryon
  • DEPOSITION OF BRAZE PREFORM
    Publication number: 20190201995
    Abstract: A method of manufacturing includes depositing a braze filler adjacent to a void between a first component and a second component thus holding the components in position before brazing. The first and second components are heated to melt and flow the braze filler into the void. A braze joint is formed between the first and second components by cooling the braze filler. Depositing the braze filler can include laser cladding the braze filler to the first and/or second components adjacent the void. The method also optionally includes welding the first and second components in position with the braze filler adjacent to the void. The braze filler may be deposited as a powder, cold spray, melted brazed filament, spherical ball or any other suitable form.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 4, 2019
    Applicant: Delavan Inc.
    Inventors: Lev Alexander Prociw, Jason A. Ryon, Steven J. Myers, Michael J. Bronson, Fouad T. Khairallah
  • Flow through cylindrical bores
    Patent number: 10317073
    Abstract: A flow directing apparatus for directing fluid flow includes a flow body defining a bore therethrough configured and adapted to direct fluid flowing therethrough. The bore includes an outlet and an opposed inlet with an enlargement, formed as a countersink and/or a chamfer using a suitable boring device. The enlargement is configured and adapted to reduce sensitivity to entrance-edge conditions for the bore.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: June 11, 2019
    Assignee: Delavan Inc.
    Inventors: Philip E. O. Buelow, Jason Ryon, Steve J. Myers
  • Injectors for multipoint injection
    Patent number: 10309651
    Abstract: An injector for a multipoint combustor system includes an inner air swirler which defines an interior flow passage and a plurality of swirler inlet ports in an upstream portion thereof. The inlet ports are configured and adapted to impart swirl on flow in the interior flow passage. An outer air cap is mounted outboard of the inner swirler. A fuel passage is defined between the inner air swirler and the outer air cap, and includes a discharge outlet between downstream portions of the inner air swirler and the outer air cap for issuing fuel for combustion. The outer air cap defines an outer air circuit configured for substantially unswirled injection of compressor discharge air outboard of the interior flow passage.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: June 4, 2019
    Assignee: DELAVAN INC
    Inventors: Lev Alexander Prociw, Jason Ryon
  • Flow devices and methods of making the same
    Patent number: 10294864
    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: May 21, 2018
    Date of Patent: May 21, 2019
    Assignee: Delavan Inc.
    Inventors: Sergey Mironets, Matthew Donovan
  • Airblast nozzle with upstream fuel distribution and near-exit swirl
    Patent number: 10295186
    Abstract: A nozzle is provided including a nozzle body having an upstream end and a downstream end aligned about a central axis. A discharge portion is positioned adjacent the downstream end. A bore extends inwardly from the downstream end over the length of the discharge portion. An opening is formed in the nozzle body adjacent the discharge portion. The opening is fluidly connected to the bore to provide an interior air flow passage. A main fuel channel extends from the upstream end to the discharge portion. At least one fuel flow branch extends through the discharge portion between the bore and an outer surface of the nozzle body. The fuel flow branch is fluidly coupled to the main fuel conduit to provide a fuel flow passage. The outer air cap is positioned about the outer surface of the discharge portion of the nozzle body to form an exterior air flow passage.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: May 21, 2019
    Assignee: DELAVAN INC. OF DES MOINES IA
    Inventor: Gregory Zink
  • Systems for quality monitoring of additive manufacturing
    Patent number: 10295502
    Abstract: A system for quality monitoring of additive manufacturing includes an acoustic emission (AE) sensor configured to be attached to an additive manufacturing substrate and to output a sensor signal indicative of acoustic vibrations received at the AE sensor and an AE module. The AE module is configured to receive the sensor signal from the AE sensor and process the sensor signal to determine at least one characteristic of an additive manufacturing process and/or an additively manufactured article.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: May 21, 2019
    Assignee: Delavan Inc.
    Inventors: Patrick L. Clavette, Michael A. Klecka, Aaron T. Nardi, Greg C. Ojard
  • Swirlers
    Patent number: 10288292
    Abstract: A swirler includes a swirler body defining a longitudinal axis. A stack of swirler plates is assembled to the swirler body stacked in a direction along the longitudinal axis. Each of the swirl plates defines a vane portion. The swirler plates are mounted rotated circumferentially about the longitudinal axis relative to neighboring ones of the swirler plates so the vane portions form a swirler vane.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: May 14, 2019
    Assignee: Delavan Inc
    Inventor: Jason A. Ryon
  • Additive manufacture of electrically conductive materials
    Patent number: 10265771
    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: Grant
    Filed: November 9, 2015
    Date of Patent: April 23, 2019
    Assignee: Delavan Inc.
    Inventors: Vijay Jagdale, Tahany I. El-Wardany, Wayde R. Schmidt