Bjoern O Schenk

US Patent:

6409473, Jun 25, 2002

Filed:

Jun 27, 2000

Appl. No.:

09/604386

Inventors:

E-June Chen - Scottsdale AZ
Bjoern Schenk - Phoenix AZ
Ramesh Bapat - Mesa AZ
I. Gene Fowkes - Tempe AZ
Brian Gracias - Phoenix AZ
Taison Ku - Tempe AZ
Josef Paluch, II - Avondale AZ

Assignee:

Honeywell International, Inc. - Morris Township NJ

International Classification:

F01D 102

US Classification:

415191, 4152094, 4152101

Abstract:

An assembly comprising a ceramic vane with a metal housing cast around the ends of the vane. The ceramic vane has dovetailed shaped grooves along its edges that extend from the vanes leading edge to its trailing edge. The housing is comprised of two spaced apart walls each having dovetailed protrusions for mating with the dovetail grooves in the vaness edges. Upon the casting of the walls to the vane at least one surface of each dovetail groove comes in contact with at least one surface of the dovetail protrusion. A crushable coating is disposed between the vanes edges and the dovetail protrusions.

US Patent:

6431781, Aug 13, 2002

Filed:

Jun 15, 2000

Appl. No.:

09/594915

Inventors:

Bjoern Schenk - Phoenix AZ

Assignee:

Honeywell International, Inc. - Morristown NJ

International Classification:

F16B 900

US Classification:

403 29, 403 30, 403273, 416244 A

Abstract:

A joint assembly for coupling a ceramic member to a metal member is comprised of a ceramic shaft portion attached to the ceramic member; a slotted shrink fitter formed of a first metal and disposed around and in torque transmitting contact with the ceramic shaft portion to define a first interface surface therebetween; and a sleeve formed of a second metal disposed around and in torque transmitting contact with the shrink fitter to define a second interface surface therebetween. Either the shrink fitter or the sleeve attached to the metal member. The coefficient of thermal expansion of the second metal is relatively low compared to that of the first metal and the diameters of the first interface, (d ), and the second interface, (d ), are determined from the equation, d / =( - )/(- ) where , and are the coefficients of thermal expansion of the ceramic, the first metal and the second metal respectively. A compliant sleeve is disposed the ceramic shaft portion and the slotted shrink fitter.

US Patent:

6672786, Jan 6, 2004

Filed:

Jun 4, 2002

Appl. No.:

10/164024

Inventors:

Bjoern Schenk - Phoenix AZ

Assignee:

Honeywell International Inc. - Morristown NJ

International Classification:

F16B 900

US Classification:

403 30, 403 29, 403273, 416244 A

Abstract:

A joint assembly for coupling a ceramic member to a metal member is comprised of a ceramic shaft portion attached to the ceramic member; a slotted shrink fitter formed of a first metal and disposed around and in torque transmitting contact with the ceramic shaft portion to define a first interface surface therebetween; and a sleeve formed of a second metal disposed around and in torque transmitting contact with the shrink fitter to define a second interface surface therebetween. Either the shrink fitter or the sleeve attached to the metal member. The coefficient of thermal expansion of the second metal is relatively low compared to that of the first metal and the diameters of the first interface, (d ), and the second interface, (d ), are determined from the equation, d /d =( - )/( - ) where , and are the coefficients of thermal expansion of the ceramic, the first metal and the second metal respectively. A compliant sleeve is disposed the ceramic shaft portion and the slotted shrink fitter.

US Patent:

6736401, May 18, 2004

Filed:

Dec 19, 2001

Appl. No.:

10/027573

Inventors:

Vincent Chung - Tempe AZ
Arun Kumar - Chandler AZ
Bjoern Schenk - Phoenix AZ
Adrian R. Allan - Chandler AZ

Assignee:

Honeywell International, Inc. - Morristown NJ

International Classification:

F01D 1102

US Classification:

277355, 277548

Abstract:

A ceramic finger seal for use between a housing and a combustor liner to inhibit air passage therebetween and for use in fluid sealing between a rotating shaft and a housing circumscribing the rotating shaft. The ceramic finger seal has at least two annular diaphragm members constructed of two or more diaphragm segments bonded end to end by ceramic cement or other high temperature joining compounds. The diaphragm members may be partitioned into a generally continuous inner diameter portion and a segmented outer diameter portion or the reverse thereof. The segmented portion includes finger elements spaced uniformly apart forming gaps therebetween and extend radially outward or inward terminating in a foot portion. The rolled edge on the finger is formed by laser cutting to prevent gouging of the combustor liner surface.

US Patent:

6881027, Apr 19, 2005

Filed:

Jul 30, 2003

Appl. No.:

10/631946

Inventors:

Reinhard M. Klaass - Orem UT, US
Donald I. Takeuchi - Tempe AZ, US
Bjoern Schenk - Phoenix AZ, US

Assignee:

Honeywell International, Inc. - Morristown NJ

International Classification:

F01D025/16

US Classification:

415104, 415229, 415230

Abstract:

The complex mechanical gear trains and lubrication systems of conventional engine configurations are eliminated by using combinations of hydrodynamic air foil bearings, hydrodynamic solid geometry carbon seals/bearings, magnetic bearings, and electrical starter/generators that can also act as bearings to support the high speed shafts of gas turbine engines. The various bearing types and the starter/generators are arranged in such a way as to share peak loads experienced by the engine shaft during maximum aircraft maneuvers. This results in a minimal bearing and engine size.

US Patent:

6977233, Dec 20, 2005

Filed:

Jul 15, 2003

Appl. No.:

10/621168

Inventors:

Chien-Wei Li - Livingston NJ, US
Bjoern Schenk - Phoenix AZ, US
James V. Guiheen - Madison NJ, US

Assignee:

Honeywell International, Inc. - Morristown NJ

International Classification:

C04B035/577
C04B035/596

US Classification:

501 92, 501 972, 501 974, 264683

Abstract:

Sintered silicon nitride products comprising predominantly β-silicon nitride grains in combination with from about 0. 1 to 30 mole % silicon carbide, and grain boundary secondary phases of scandium oxide and scandium disilicate. Such products have high fracture toughness, resistance to recession, and resistance to oxidation at temperatures of at least 1500 C. Methods for preparing sintered silicon nitride products are also disclosed.

US Patent:

7115319, Oct 3, 2006

Filed:

Oct 8, 2003

Appl. No.:

10/682752

Inventors:

Derek Raybould - Denville NJ, US
Chien-Wei Li - Livingston NJ, US
Thomas E. Strangman - Prescott AZ, US
Bjoern Schenk - Phoenix AZ, US

Assignee:

Honeywell International, Inc. - Morristown NJ

International Classification:

B32B 18/00
B32B 15/04

US Classification:

428450, 428446, 428448, 428336, 428698, 428701, 428702, 2282629

Abstract:

A component comprising a silicon-based substrate and a braze-based protective coating disposed on the silicon-based substrate. The braze-based coating comprises a brazed layer, wherein the brazed layer comprises at least one intermetallic compound. A scale layer may be formed on the brazed layer. An environmental barrier coating may be disposed directly on the brazed layer or directly on the scale layer. A thermal barrier coating may be disposed on the environmental barrier coating. Methods for making a Si-based component having a braze-based protective coating are also disclosed.

US Patent:

7251942, Aug 7, 2007

Filed:

Jun 29, 2004

Appl. No.:

10/880820

Inventors:

Kevin S. Dittmar - Phoenix AZ, US
David H. Edmonds - Tempe AZ, US
Bjoern Schenk - Phoenix AZ, US
Yogendra Y. Sheoran - Scottsdale AZ, US

Assignee:

Honeywell International Inc. - Morristown NJ

International Classification:

F02C 7/06
F02C 7/18
F02C 7/275

US Classification:

60788, 60785, 60728, 60 3983

Abstract:

An auxiliary power unit (APU) includes a compressor, a turbine, a combustor, and a starter-generator unit all integrated within a single containment housing. The turbine has an output shaft on which the compressor is mounted, and the starter-generator unit is coupled to the turbine output shaft without any intervening gears. The rotating components are all rotationally supported within the containment housing using bearings that do not receive a flow of lubricating fluid.