Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 7410342 | Airfoil support A blade or a vane preferably used in a gas turbine engine, the blade or vane being formed of a metallic core or insert with a ceramic airfoil surface bonded to the metallic insert. The insert includes a series of concave and convex portions arranged along the outer ... | 08/12/2008 |
| 7121796 | Nozzle-cooling insert assembly with cast-in rib sections A cooling insert/nozzle assembly for use in gas turbines or similar machinery includes a nozzle having inner and outer ribs with cast-in “T” sections and “L” sections, respectively, at the end of the ribs in which air flow enters the nozzle. The assembly fur... | 10/17/2006 |
| 7093359 | Composite structure formed by CMC-on-insulation process A method of manufacturing a composite structure uses a layer of an insulating material (22) as a mold for forming a substrate of a ceramic matrix composite (CMC) material (24). The insulating material may be formed in the shape of a cylinder (10... | 08/22/2006 |
| 7070386 | Airfoil insert with castellated end Provided is an airfoil insert for discharging an increased volume of cooling air. The insert comprises a perforated, tubular-shaped body with a first end for introducing the cooling air. A second end located opposite the first end and discharges an increased volume ... | 07/04/2006 |
| 6986644 | Hard material impeller and methods and apparatus for construction Methods of producing impeller castings from very hard materials are disclosed in which the formation of a selectively configured core produces an impeller casting that does not need to be machined to receive the drive shaft and eliminates the need for employing a le... | 01/17/2006 |
| 6964557 | Methods and apparatus for coupling a component to a turbine engine blade A metering plate includes a body having a first end and a second end, at least one opening extending through the body, and at least one projection extending outwardly from the body. The body is configured to be resistance welded to at least one of a turbine engine b... | 11/15/2005 |
| 6742984 | Divided insert for steam cooled nozzles and method for supporting and separating divided insert A pair of hollow elongated leg sections are disposed in one or more of the nozzle vane cavities of a nozzle stage of a gas turbine. Each leg section has an outer wall portion with apertures for impingement-cooling of nozzle wall portions in registration with the out... | 06/01/2004 |
| 6610385 | Integral surface features for CMC components and method therefor A component formed at least in part by a CMC material and equipped with an integrally-formed surface feature, such as an airflow enhancement feature in the form of a turbulator or flow guide. The CMC material comprises multiple sets of tows woven together... | 08/26/2003 |
| 6539627 | Method of making turbulated cooling holes A component for use in a flow path of a gas turbine engine. The component includes a body having an exterior surface mountable in the gas turbine engine so the exterior surface is exposed to gases flowing through the flow path of the engine. The body has ... | 04/01/2003 |
| 6453557 | Method of joining a vane cavity insert to a nozzle segment of a gas turbine An insert containing apertures for impingement cooling a nozzle vane of a nozzle segment in a gas turbine is inserted into one end of the vane. The leading end of the insert is positioned slightly past a rib adjacent the opposite end of the vane through w... | 09/24/2002 |
| 6339879 | Method of sizing and forming a cooling hole in a gas turbine engine component A method for accurately sizing and forming the cooling holes of an air-cooled gas turbine engine component on which a protective diffusion coating will be deposited. The method generally entails drilling a hole in a surface region of a substrate, and then... | 01/22/2002 |
| 6265022 | Process of plugging cooling holes of a gas turbine component Process of plugging cooling holes (4) of a gas turbine component (1) with an external surface (7), having a cavity (2) and a plurality of cooling holes (4) before coating the gas turbine component (4), characterised in that mask material (6) is applied to... | 07/24/2001 |
| 6227801 | Turbine engine having improved high pressure turbine cooling A turbine engine having improved high pressure turbine cooling is disclosed. In the engine, relatively cool intermediate pressure (P2x) air is diverted from a region of a compressor section and over a high work turbine blade at a lower static pressure tha... | 05/08/2001 |
| 6193465 | Trapped insert turbine airfoil A gas turbine engine airfoil is manufactured by forming an internal retention seat in two complementary airfoil parts. An insert is fabricated for retention in the seat. The two parts are assembled with the insert disposed in the seat therebetween. The pa... | 02/27/2001 |
| 6120244 | Structure and method for inserting inserts in stationary blade of gas turbine An insert inserting structure and a method for enabling a stationary blade of a gas turbine to withstand high temperatures of even 1500 C. in order to realize a 150° C. class gas turbine is provided. In a stationary blade of a gas turbine including a hol... | 09/19/2000 |
| 5755031 | Method for attaching a rotor blade to an integrally bladed rotor A method for replacing a rotor blade on an integrally bladed rotor having a disk is provided, comprising the steps of: (a) removing a damaged rotor blade, leaving a stub portion of the rotor blade extending out from the disk, the stub portion of the rotor... | 05/26/1998 |
| 5511309 | Method of manufacturing a turbine airfoil with enhanced cooling Cooling of a turbine airfoil such as a turbine stator vane in a gas turbine engine is enhanced by the provision of additional cooling air through a secondary air inlet communicating with a medial portion of an internal, serpentine cooling air passage.... | 04/30/1996 |
| 5448829 | Hollow titanium blade manufacturing A titanium gas injection tube 18 is located within a counterbore (16) in the blade (10) halves which are to be bonded and formed. An internal stainless steel sleeve (24) is placed in the counterbore inside the titanium tube to resist bonding forces. An ex... | 09/12/1995 |
| 5145315 | Gas turbine vane cooling air insert A gas turbine stationary vane is provided having cooling air inserts and an inpingement plate attached to the outer shroud of the vane. The inserts extend only a short distance above their mounting surface on the outer shroud so that there is adequate acc... | 09/08/1992 |
| 4447466 | Process for making plasma spray-cast components using segmented mandrels Gas turbine engine superalloy airfoils and other components having unique microstructures and novel combinations of physical properties are produced rapidly and economically by the method of the invention which uses the low pressure/high velocity plasma s... | 05/08/1984 |
| 4440834 | Process for the manufacture of turbine blades cooled by means of a porous body and product obtained by the process The cavity of a hollow turbine has its bottom equipped with a temporary means of obturation and is filled with a mixture of metal chips and a powder consisting of low melting metals, said mixture being subjected to a heating operation in order to join the... | 04/03/1984 |
| 4418455 | Method of manufacturing a fluid cooled blade or vane A fluid cooled blade or vane for use in a gas turbine or like apparatus is disclosed herein. The blade or vane includes an elongated open ended skin of predetermined cross-sectional configuration, a number of spaced cooling tubes located within and extend... | 12/06/1983 |
| 4370789 | Fabrication of gas turbine water-cooled composite nozzle and bucket hardware employing plasma spray process In the method for fabrication of water-cooled composite nozzle and bucket hardware for high temperature gas turbines, a high thermal conductivity copper alloy is applied, employing a high velocity/low pressure (HV/LP) plasma arc spraying process, to an as... | 02/01/1983 |
| 4283822 | Method of fabricating composite nozzles for water cooled gas turbines A method of fabricating a composite nozzle for water-cooled, high temperature gas turbines is provided wherein the nozzle comprises a thermally conducting copper core, a top endwall, a bottom endwall, metal tubing through which water may pass embedded in ... | 08/18/1981 |
| 4249291 | Method for forming a liquid cooled airfoil for a gas turbine A method for forming a liquid cooled airfoil for a gas turbine is disclosed. A plurality of holes are formed at spaced locations in an oversized airfoil blank. A pre-formed composite liquid coolant tube is bonded into each of the holes. The composite tube... | 02/10/1981 |
| 4195396 | Method of forming an airfoil with inner and outer shroud sections An improved method of forming inner and outer sections of a shroud with an airfoil extending between them includes forming the airfoil and shrouds in sections. An upper or convex section of an airfoil is formed with a radially inner section of the shroud ... | 04/01/1980 |
| 4185369 | Method of manufacture of cooled turbine or compressor buckets Methods are disclosed for more practical construction of liquid-cooled buckets able to efficiently transport heat energy from the inside of the airfoil skin surface in contact with hot gas to the outer surface of preformed tubes recessed into the bucket c... | 01/29/1980 |
| 4137619 | Method of fabricating composite structures for water cooled gas turbine components A method is provided for fabricating complex composite components for water-cooled, high temperature gas turbines. Each component comprises a core, a thermally conducting layer of copper bonded to the core, metal tubing through which water may pass embedd... | 02/06/1979 |
