David A Kwok

US Patent:

7815148, Oct 19, 2010

Filed:

Sep 26, 2006

Appl. No.:

11/527009

Inventors:

David W. Kwok - La Mirada CA, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

B64D 37/00
B64D 37/32
B64D 41/00
H01M 8/04

US Classification:

244135R, 244 58

Abstract:

A fuel system for an aircraft is disclosed. The fuel system comprises a fuel tank and a fuel reformer for receiving fuel from the fuel tank. The system includes a hydrogen fuel cell array for receiving hydrogen from the fuel reformer. The system further includes mechanism for providing an inerting gas from the fuel system to the fuel tank.

US Patent:

8033497, Oct 11, 2011

Filed:

Jun 2, 2008

Appl. No.:

12/131655

Inventors:

David W. Kwok - La Mirada CA, US
Blaine Knight Rawdon - San Pedro CA, US
John Anthony Skorupa - Huntington Beach CA, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

B64B 1/62

US Classification:

244 5, 244 97

Abstract:

An airship comprises a shell, a gas storage system, an air storage system, a cargo storage system, a heating system, and a propulsion system. The shell encompasses a volume. The gas storage system is located within the volume, wherein the gas storage system is capable of storing a lighter than air gas. The air storage system is located within the volume, wherein the air storage system is capable of storing heated air. The heating system is capable of heating air. The propulsion system is capable of propelling the shell during flight.

US Patent:

20070257154, Nov 8, 2007

Filed:

May 5, 2006

Appl. No.:

11/418856

Inventors:

David Kwok - La Mirada CA, US
David Smith - Santa Ana CA, US
John Smith - Buena Park CA, US

Assignee:

THE BOEING COMPANY - Chicago IL

International Classification:

B64D 39/00

US Classification:

24413500A

Abstract:

A lightning protection system, method and aircraft are provided for reducing the flammability of jet fuel spilled during an in-flight refueling operation between a supplying aircraft and a receiving aircraft. An inert gas is injected adjacent to a refueling interface in order to displace oxygen in the fuel-air mixture and thereby reduce the ability of the fuel vapor to ignite upon occurrence of an ignition source such as lightning. The refueling system may comprise a boom or a hose and drogue type device.

US Patent:

20090159110, Jun 25, 2009

Filed:

Mar 18, 2008

Appl. No.:

12/050849

Inventors:

David W. Kwok - La Mirada CA, US
James P. Huang - Huntington Beach CA, US
John A. Skorupa - Huntington Beach CA, US
John W. Smith - Buena Park CA, US

International Classification:

H01L 35/02

US Classification:

136205

Abstract:

A thermoelectric generation system for turbine engines and the like has at least one thermoelectric generator disposed proximate the turbine engine such that waste heat from the turbine engine can be converted into electricity. Vehicle performance and efficiency can be enhanced by mitigating the need for mechanically driven electric power generators, which undesirably drain power from the turbine engine thus adversely affect the vehicle's performance.

US Patent:

20110108080, May 12, 2011

Filed:

Nov 6, 2009

Appl. No.:

12/613897

Inventors:

David W. Kwok - La Mirada CA, US
Jack W. Mauldin - Long Beach CA, US
James P. Huang - Huntington Beach CA, US
Namsoo P. Kim - Bellevue WA, US

International Classification:

H01L 35/30

US Classification:

136205

Abstract:

A thermoelectric generator assembly may comprise a frame that may include a first frame member and a second frame member. The first frame member and the second frame member are adapted to retain one or more thermoelectric generator devices in position therebetween for transferring heat energy through the one or more thermoelectric generator devices from a heat source to a heat sink to generate electrical energy. The thermoelectric generator assembly may also include a spacer positioned between the first frame member and the second frame member. A power bus may be included to provide the electrical energy generated by the one or more thermoelectric generator devices for powering an electrical device.

US Patent:

20120118345, May 17, 2012

Filed:

Nov 15, 2010

Appl. No.:

12/927466

Inventors:

Michael F. Stoia - Rancho Santa Margarita CA, US
David W. Kwok - La Mirada CA, US
James P. Huang - Huntington Beach CA, US

International Classification:

H01L 35/30

US Classification:

136205

Abstract:

Disclosed is an improved thermoelectric component, a method for thermal integration of the improved thermoelectric component in an environment having thermally distinct zones, and a thermoelectric generation system. In general, the thermoelectric component includes a thermoelectric device having opposing surfaces for arrangement in comparatively hot and cold environments, and an extended surface mounted in close proximity to at least one of the opposing surfaces, the extended surface being a layer of porous material having at least a portion immersed in at least one of the hot or cold environments.

US Patent:

20130205798, Aug 15, 2013

Filed:

Feb 15, 2012

Appl. No.:

13/397436

Inventors:

David W. Kwok - La Mirada CA, US
James P. Huang - Irvine CA, US
Jack W. Mauldin - Mill Creek WA, US

International Classification:

F02C 6/00

US Classification:

60783, 60784

Abstract:

In one embodiment, a gas turbine engine assembly comprises an engine assembly disposed about a longitudinal axis, a core nozzle positioned adjacent the engine assembly to direct a core flow generated by the engine assembly, a fan nozzle surrounding at least a portion of the core nozzle to direct a fan flow, wherein the core nozzle defines a plenum to receive a portion of the core stream flow from the core nozzle and a thermoelectric generator assembly positioned in the plenum. Other embodiments may be described.

US Patent:

20170038238, Feb 9, 2017

Filed:

Aug 5, 2015

Appl. No.:

14/818701

Inventors:

- Chicago IL, US
David W. Kwok - La Mirada CA, US
David M. Smith - Santa Ana CA, US

Assignee:

THE BOEING COMPANY - Chicago IL

International Classification:

G01F 23/00
G01F 9/00

Abstract:

A method for fuel quantity gauging that measures the quantity of liquid fuel in a fuel tank directly without the need to accurately locate fuel heights throughout the fuel tank using multiple fuel gauging probes. The method may comprise the following steps performed while fuel is flowing out of the fuel tank: (a) changing a volume of gas in the fuel tank (e.g., by injecting or venting gas) during a time interval; (b) measuring a rate of change of the volume of gas in the fuel tank during the time interval; (c) measuring a rate of flow of fuel out of the fuel tank during the time interval; (d) measuring a first pressure and a first temperature of the gas in the fuel tank at the start of the time interval; (e) measuring a second pressure and a second temperature of the gas in the fuel tank at the end of the time interval; and (f) calculating a quantity of fuel in the fuel tank based on the measurement data acquired in steps (c) through (f). Step (f) is performed by a processing unit.