James P Downs

US Patent:

6634859, Oct 21, 2003

Filed:

Dec 10, 2001

Appl. No.:

10/006725

Inventors:

Bernhard Weigand - Filderstadt, DE
James P. Downs - Juno Beach FL

Assignee:

Alstom (Switzerland) Ltd - Baden

International Classification:

F01D 518

US Classification:

416 97R, 415115, 4151212

Abstract:

An apparatus and a process are provided for impingement cooling of a component exposed to heat in a flow machine. The component includes a wall section on at least one side of which at least one impingement air flow impinges, the air flow passing through a flow channel within a surface element arranged spaced apart from the wall section and striking against the wall section to be cooled. The flow channel has an inlet aperture and an outlet aperture, with the outlet aperture directly facing toward the wall section to be cooled, and the inlet aperture has a throughflow cross section which is smaller than the throughflow cross section of the outlet aperture.

US Patent:

8556576, Oct 15, 2013

Filed:

Sep 30, 2010

Appl. No.:

12/894476

Inventors:

John E Ryznic - Palm Beach Gardens FL, US
James P Downs - Jupiter FL, US

Assignee:

Florida Turbine Technologies, Inc. - Jupiter FL

International Classification:

F01D 5/18

US Classification:

415115, 4151995, 416 97 R

Abstract:

A micro gas turbine engine in which the turbine rotor blades are formed as an integral bladed rotor with cooling air passages formed within the blades and the rotor disk by an EDM process. an adjacent stator vane includes an air riding seal with an air cushion supplied through the vanes to provide cooling, and where the air cushion is then passed into the turbine blades and rotor disk to provide cooling for the turbine blades. With cooling of the turbine blades, higher turbine inlet temperatures for micro gas turbine engines can be produced.

US Patent:

62478966, Jun 19, 2001

Filed:

Jun 23, 1999

Appl. No.:

9/338376

Inventors:

Thomas A. Auxier - Palm Beach Gardens FL
James P. Downs - Jupiter FL
William S. Kvasnak - Guilford CT
Friedrich O. Soechting - Tequesta FL
William H. Calhoun - Akworth GA
Douglas A. Hayes - Port St. Lucie FL

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

F01D 518

US Classification:

416 97R

Abstract:

A method and apparatus for cooling a wall within a gas turbine engine is provided which comprises the steps of: (1) providing a wall having an internal surface and an external surface; (2) providing a cooling microcircuit within the wall that has a passage for cooling air that extends between the internal surface and the external surface; and (3) increasing heat transfer from the wall to a fluid flow within the passage by increasing the average heat transfer coefficient per unit flow within the microcircuit. According to one aspect, the present invention method and apparatus can be tuned to substantially match the thermal profile of the wall at hand.

US Patent:

20190041293, Feb 7, 2019

Filed:

Sep 26, 2016

Appl. No.:

15/764910

Inventors:

- Jupiter FL, US
Russell B. JONES - North Palm Beach FL, US
James P. DOWNS - Hobe Sound FL, US

Assignee:

Florida Turbine Technologies, Inc. - Jupiter FL

International Classification:

G01M 15/14

Abstract:

A system and method for testing a combustor or other component of a large industrial gas turbine engine. A test facility for testing a gas turbine engine component includes a storage reservoir, a heat exchanger () with a first fluid flow passage connected to the storage reservoir and a second fluid flow passage, a combustor () connected to the second fluid flow passage of the heat exchanger (), a hot gas stream from the combustor flowing within the second fluid flow passage, and a test component of a gas turbine engine connected to the second fluid flow passage of the heat exchanger (). The compressed air from the storage reservoir () passes through the heat exchanger () first fluid flow passage and is preheated from the hot gas stream passing through the second fluid flow passage, and the preheated compressed air from the heat exchanger () passes into the test component for testing.