Louis P Chiappetta

US Patent:

7393388, Jul 1, 2008

Filed:

May 13, 2005

Appl. No.:

11/128571

Inventors:

Louis J. Spadaccini - Manchester CT, US
Harry Cordatos - Colchester CT, US
Thomas Gregory Tillman - West Hartford CT, US
Alexander G. Chen - Ellington CT, US
Louis Chiappetta - South Windsor CT, US
James R. Irish - Vernon CT, US
Foster Phillip Lamm - South Windsor CT, US
Stephen R. Jones - Columbia CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B01D 53/22
B01D 63/10

US Classification:

96 6, 96 7, 96 11, 96 12, 96 13, 96 14, 95 46, 95 54, 210640, 2104971, 21050021

Abstract:

A deoxygenator includes a plurality of permeable membranes spirally wound about an exhaust tube for removing dissolved oxygen from a hydrocarbon fuel. The permeable membrane is spirally wrapped about the exhaust tube and defines fuel passages and exhaust passages. The fuel passages and exhaust passages alternate such that each fuel passage is bounded on each adjacent side by an exhaust passage. An oxygen partial pressure differential is generated across the permeable membrane to draw dissolved oxygen from fuel in the fuel passage. The dissolved oxygen is then communicated through openings about the circumference of the exhaust tube and out the deoxygenator.

US Patent:

7582137, Sep 1, 2009

Filed:

Jan 18, 2006

Appl. No.:

11/334587

Inventors:

Alexander G. Chen - Ellington CT, US
Louis J. Spadaccini - Manchester CT, US
Louis Chiappetta - South Windsor CT, US
Haralambos Cordatos - Colchester CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B01D 53/22

US Classification:

95 46, 95 54, 96 6, 96 7, 96 11, 96 12, 55524, 210640

Abstract:

A device for use in a fluid system includes a flow perturbation element within a fluid channel. The flow perturbation element has a gas permeable surface for removing dissolved gas from passing fluid. A gas permeable membrane is coated on the gas permeable surface and allows the dissolved gas transport out of passing fluid into a gas-removal channel. The gas permeable membrane may be coated on the fuel perturbation elements using any of a variety of methods.

US Patent:

7824470, Nov 2, 2010

Filed:

Jan 18, 2006

Appl. No.:

11/334126

Inventors:

Louis Chiappetta - South Windsor CT, US
Louis J. Spadaccini - Manchester CT, US
He Huang - Glastonbury CT, US
Mallika Gummalla - Longmeadow MA, US
Dochul Choi - Lexington MA, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B01D 53/22

US Classification:

95 54, 95 46, 95262, 96 6, 96 7, 96 11, 96215, 96220, 210640, 210490, 366338

Abstract:

A fuel system for an energy conversion device includes a deoxygenator system with a multitude of flow impingement elements which are interleaved to provide a fuel channel with intricate two-dimensional flow characteristics. The flow impingement elements break up the boundary layers and enhance the transport of oxygen from the core of the of the fuel flow within the fuel channel to the oxygen permeable membrane surfaces by directing the fuel flow in a direction normal to the oxygen permeable membrane. The rapid mixing of the relatively rich oxygen core of the fuel with the relatively oxygen-poor flow near the oxygen permeable membrane enhances the overall removal rate of oxygen from the fuel. Because this process can be accomplished in fuel channels of relatively larger flow areas while maintaining laminar flow, the pressure drop sustained is relatively low.

US Patent:

8127829, Mar 6, 2012

Filed:

Sep 6, 2006

Appl. No.:

11/516402

Inventors:

Daniel R. Sabatino - East Hampton CT, US
Scott F. Kaslusky - West Hartford CT, US
Hayden M. Reeve - West Hartford CT, US
Louis J. Spadaccini - Manchester CT, US
Louis Chiappetta - South Windsor CT, US
He Huang - Glastonbury CT, US
David R. Sobel - West Hartford CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

F28F 7/00
F02C 6/00

US Classification:

165 803, 165146, 165181

Abstract:

A heat exchanger includes one or more passages and one or more metal foam sections adjacent the passage to promote an exchange of heat relative to the passage. The metal foam section includes a nominal thermal conductivity gradient there though to provide a desirable balance of heat exchange properties within the metal foam section.

US Patent:

20020088179, Jul 11, 2002

Filed:

Mar 5, 2002

Appl. No.:

10/091223

Inventors:

Roger Lesieur - Enfield CT, US
Donald Szydlowski - Ellington CT, US
Thomas Barber - West Hartford CT, US
Louis Chiappetta - South Windsor CT, US
William Peschke - Manchester CT, US

International Classification:

C01B003/32
B01J008/02

US Classification:

048/198700, 048/1970FM, 048/127900, 422/195000, 422/211000, 422/190000

Abstract:

A tubular fuel gas-steam reformer assembly, preferably an autothermal reformer assembly, for use in a fuel cell power plant, includes a fuel-steam vaporizer, a fuel-steam and air mixing station, and a catalyst bed. The catalyst bed can include catalyzed alumina pellets, or a monolith such as a foam or honeycomb body which is preferably formed from a high temperature material such as a steel alloy, or from a ceramic material. The fuel-steam mixture is vaporized in the vaporizer and then passes into the mixing station. The mixing station comprises a plurality of mixing tubes which open into the catalyst bed. The mixing tubes extend through a manifold and include openings which interconnect the interior of the tubes with the manifold. The openings have axes which are perpendicular to the axis of each of the mixing tubes, and are positioned on the tubes at locations which are dictated by the diameter of the mixing tubes and which will ensure thorough mixing of the air and fuel-steam streams. A preferred mode of operation involves introducing the fuel-steam stream into the mixing tubes from the vaporizer and feeding the air into the manifold. The p between the air supply and the fuel-steam stream is relatively small.

US Patent:

20080098894, May 1, 2008

Filed:

Nov 1, 2006

Appl. No.:

11/590945

Inventors:

Daniel R. Sabatino - East Hampton CT, US
Peter G. Smith - Wallingford CT, US
Louis Chiappetta - South Windsor CT, US
Jeremiah C. Lee - Coventry CT, US
Robert Hans Schlinker - Canton CT, US

International Classification:

B01D 53/22

US Classification:

96 6

Abstract:

A fuel delivery system includes a fuel stabilization unit that receives vibratory energy for mixing fuel within fuel passages to improve the removal of dissolved oxygen from an oxygen containing fuel. A vibration generator transmits vibratory energy into the fuel stabilization unit to induce mixing of fuel. Vibratory energy is directed into the fuel to create enhanced mixing by inducing large-scale secondary flow motions that circulates fuel from a center flow area toward an oxygen permeable surface to improve overall fuel deoxygenation as more of the fuel is placed in adjacent contact with the oxygen permeable membranes.

US Patent:

20120052452, Mar 1, 2012

Filed:

Aug 2, 2011

Appl. No.:

13/196418

Inventors:

Louis Chiappetta - South Windsor CT, US
Scott A. Liljenberg - Wethersfield CT, US
Meredith B. Colket - Simsbury CT, US
Shiling Zhang - East Hartford CT, US

Assignee:

Carrier Corporation - Farmington CT

International Classification:

F24H 3/02
F23N 1/02

US Classification:

431 12, 126116 R

Abstract:

An ignition system for a multi-burner heat exchanger assembly, a furnace, and a method using same are disclosed. The assembly may include a plurality of adjacent heat exchanger tubes, with a burner associated with each tube. All the burners may be lit with a single igniter and no source of secondary air. To do so, each of the burners may be provided so as to generate a swirling exit flow of combustion gases. One or more carryover tubes may also be connected between adjacent pairs of heat exchanger tubes or adjacent pairs of burners. The swirling flow generated by the burners causes hot combustion gases to move through the carryover tubes to thus carry the flame from one burner to the next. Not only can a single igniter be used, but a single flame sensor as well, while at the same time reducing nitrogen oxide emissions.

US Patent:

61419540, Nov 7, 2000

Filed:

May 18, 1998

Appl. No.:

9/080485

Inventors:

William A. Sowa - Simsbury CT
Donald W. Kendrick - Manchester CT
Louis M. Chiappetta - South Windsor CT

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

F02C 720

US Classification:

60 3906

Abstract:

A premixing fuel injector for an industrial gas turbine engine includes an axially extending centerbody (58) and a pair of radially offset scrolls (18) bounding a mixing chamber (24). The leading end (28) of each scroll cooperates with the trailing end (34) of the neighboring scroll to define an intake slot (42) for admitting a stream of primary combustion air (44) tangentially into the mixing chamber. Fuel injection passages extend along each intake slot for injecting jets (76a, 76b) of primary fuel into the incoming airstream (44). The injector is operable in a prescribed or normal state, and in a degraded state associated with the presence of undesirable combustion inside the mixing chamber. The fuel injection passages are oriented and positioned so that the fuel jets issuing therefrom are ineffective at sustaining the undesirable combustion for more than a limited interval of time. In one embodiment of the invention, the injection passages are positioned so that the trailing end (34) of the neighboring scroll acts as a physical barrier to limit radial penetration of the fuel jets when the injector operates in the degraded state.