Patents Assigned to Delavan Inc.
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • Patent number: 10252365
    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: Grant
    Filed: June 22, 2017
    Date of Patent: April 9, 2019
    Assignee: Delavan Inc.
    Inventors: Lev Alexander Prociw, Jason A. Ryon, Steven J. Myers, Michael J. Bronson, Fouad T. Khairallah
  • Patent number: 10240792
    Abstract: A valve for regulating fluid flowing bidirectionally therethrough includes a first flow body defining a passage configured to direct fluid flow in a downstream direction defined from the inlet to the outlet. The inlet includes an enlargement configured to provide decreased resistance to fluid flow in the downstream direction relative to flow in an upstream direction opposite the downstream direction.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: March 26, 2019
    Assignee: Delavan Inc.
    Inventors: Jason A. Ryon, Chien-Jung Yu, Philip E. O. Buelow, Neal A. Thomson
  • Patent number: 10227890
    Abstract: A system for inspecting spray nozzles includes a nozzle operatively connected to a source of pressurized liquid for issuing a spray from the nozzle. The system also includes a sensor positioned to detect frequencies of resonant modes in the spray. The nozzle and sensor can each be mounted to a spray test booth. A method of inspecting a spray nozzle includes issuing a liquid from a spray nozzle as a spray and using a sensor to detect frequencies of resonant modes in the spray. The sensor can include a diaphragm and detecting frequencies can include impinging at least some of the spray on the diaphragm, and monitoring vibrations of the diaphragm.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: March 12, 2019
    Assignee: Delavan, Inc.
    Inventors: Lev A. Prociw, Jason A. Ryon
  • Patent number: 10211472
    Abstract: A fuel cell nozzle includes a fuel circuit receiver configured to receive a fuel circuit and an air circuit. At least a portion of the air circuit is integrally formed with the fuel circuit receiver. The nozzle can further include a base portion that is configured to interface with a fuel cell. The fuel circuit receiver and the air circuit can extend from the base portion.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: February 19, 2019
    Assignee: Delavan Inc.
    Inventor: Gregory A. Zink
  • Patent number: 10207325
    Abstract: A method of additive manufacturing includes building a component having a top surface, attaching the component to a powder bed fusion plate that receives the component, filling the powder bed fusion chamber so the powder is flush with the top surface of the component, and adding a first layer of powdered metal level with the top surface of the component. The method of additive manufacturing also includes fusing the first layer of powdered metal to the top surface of the component to create a fusion joint, and building up an additively manufactured body from the top surface of the component in subsequent layers.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: February 19, 2019
    Assignee: Delavan Inc.
    Inventors: Gregory Zink, Spencer Pack, Matt Donovan
  • Patent number: 10208957
    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: May 4, 2018
    Date of Patent: February 19, 2019
    Assignee: Delavan Inc.
    Inventor: Bruce D. Paradise
  • Patent number: 10202871
    Abstract: A strainer body strainer body has a conical or bullet-like shape and includes a tip portion, a midsection, and a base portion. The midsection connects the tip portion to the base portion such that the tip portion, midsection, and base portion are aligned with one another along a straining axis defined by the strainer body. The strainer body includes a plurality of layers fused to one another and angled relative to the straining axis. The plurality of layers define flow passages that extend through the strainer body to impound particulate entrained in fluid traversing the strainer body through the flow passages of the strainer body.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: February 12, 2019
    Assignee: Delavan Inc.
    Inventors: Jason A. Ryon, Brett A. Pfeffer, Mark A. Caples
  • Patent number: 10195667
    Abstract: A method includes placing an additively manufactured article having one or more internal channels in a non-reactive liquid to remove remainder powder from within the one or more internal channels, wherein the non-reactive liquid is a gas at room temperature and/or pressure. Placing the additively manufactured article in the non-reactive liquid includes can include placing the additively manufactured article in liquid nitrogen.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: February 5, 2019
    Assignee: Delavan Inc.
    Inventors: Diana Giulietti, Eric Karlen, Kiley J. Versluys
  • Patent number: 10190502
    Abstract: A method of joining includes applying braze to a braze reservoir in a first component. A second component is engaged to the first component, wherein a joint location is defined between the first and second components. A wicking structure provides flow communication from the braze reservoir to the joint location. The method also includes joining the first and second components together at the joint location by applying heat to the braze to flow the braze from the reservoir through the wicking structure to the joint location to form a braze joint at the joint location.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: January 29, 2019
    Assignee: Delavan Inc.
    Inventors: Jason A. Ryon, Lev A. Prociw
  • Publication number: 20190022673
    Abstract: A fluid spray nozzle tip can include a feed hole body that defines at least one feed hole and a spray outlet, the at least one feed hole being in direct fluid communication with the spray outlet without also being in fluid communication with an upstream spin chamber. The at least one feed hole can be a plurality of feed holes, wherein the tip further includes a pintle sealing surface body extending from the feed hole body and configured to allow a pintle to seal against a sealing surface thereof.
    Type: Application
    Filed: July 19, 2017
    Publication date: January 24, 2019
    Applicant: Delavan Inc
    Inventors: Andy W. Tibbs, Philip E. O. Buelow
  • Patent number: 10161633
    Abstract: A swirler, such as for swirling air in a fuel injector of a gas turbine engine, includes a swirler body with opposed inlet and outlet ends with a swirler wall extending therebetween along a longitudinal axis. The inlet end of the swirler body defines an inlet opening. A plurality of swirl slots is defined through a portion of the swirler wall that converges toward the longitudinal axis in a direction from the inlet opening toward the outlet end of the swirler body. The swirl slots are radially off-set with respect to the longitudinal axis for imparting swirl on a flow passing from the inlet opening, through the swirl slots, and past the outlet end of the swirler body.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: December 25, 2018
    Assignee: Delavan Inc.
    Inventors: Gary Chew, Viraphand Cholvibul, Philip E. O. Buelow, Jason Allen Ryon