JAMES CLEMENS NAPIER
Pilots at Cartulina Rd, San Diego, CA

License number
California A1367416
Issued Date
Feb 2016
Expiration Date
Feb 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
4333 Cartulina Rd, San Diego, CA 92124

Professional information

James Napier Photo 1

Apparatus For Removing Contaminants From Heated Gases

US Patent:
4600414, Jul 15, 1986
Filed:
Dec 20, 1984
Appl. No.:
6/684051
Inventors:
Arthur G. Metcalfe - National City CA
James C. Napier - San Diego CA
William A. Compton - San Diego CA
Assignee:
Solar Turbines Incorporated - San Diego CA
International Classification:
B01D 4508
US Classification:
55290
Abstract:
Methods of and apparatus for removing contaminants from heated gases by impact separation. The contaminants are collected by adhering them to a moving surface, and they are thereafter removed from that surface.


James Napier Photo 2

Low Noise Exhaust Ducting System

US Patent:
8371521, Feb 12, 2013
Filed:
Mar 15, 2007
Appl. No.:
11/724644
Inventors:
James C. Napier - San Diego CA, US
Jay M. Francisco - Chula Vista CA, US
Assignee:
Pratt & Whitney - East Hartford CT
International Classification:
B64D 41/00, F02K 1/00, F02G 1/00
US Classification:
244 58, 60 395, 60770, 60 3915, 60 3912
Abstract:
An exhaust duct system for a gas turbine engine that mounts within a tail cone of an aircraft, comprises an exhaust exit that exits one side of the tail cone offset from the axial centerline of the tail cone and an exhaust duct that couples the engine to the offset exhaust exit, with a straight section of the exhaust duct extending from the exhaust exit for a length that corresponds to at least one diameter of the exhaust duct.


James Napier Photo 3

Arrangement For Maintaining Flow To An Air Inlet Of An Auxiliary Power Unit Assembly

US Patent:
2012017, Jul 12, 2012
Filed:
Jan 6, 2011
Appl. No.:
12/985537
Inventors:
Jay M. Francisco - Chula Vista CA, US
James C. Napier - San Diego CA, US
International Classification:
F02C 7/32, F02C 7/047
US Classification:
60779, 60 39093
Abstract:
An example auxiliary power unit air inlet assembly includes a noise attenuating component disposed within a conduit. The conduit is configured to communicate a first flow of fluid to an auxiliary power unit. A second flow of fluid is communicated to the noise attenuating component. The second flow of fluid limits formation of ice in the conduit. The first flow of fluid is different than the second flow of fluid.


James Napier Photo 4

Exhaust Silencer With Baffles

US Patent:
8596568, Dec 3, 2013
Filed:
Apr 26, 2011
Appl. No.:
13/094179
Inventors:
Jay M. Francisco - Chula Vista CA, US
James C. Napier - San Diego CA, US
Assignee:
Hamilton Sundstrand Corporation - Windsor Locks CT
International Classification:
B64C 1/40, B64C 23/00
US Classification:
244 1N, 244 58
Abstract:
An exhaust silencer assembly includes an exhaust duct and an exhaust silencer. The exhaust silencer is disposed about the exhaust duct and has a plurality of solid baffles and at least one perforated baffle The exhaust silencer assembly is disposed downstream of an auxiliary power unit and at least partially attenuates the downstream noise of the combustion gases that result from operation of the auxiliary power unit. In one embodiment, at least one of the plurality of solid baffles is disposed to extend axially between generally radially extending solid baffles, perforated baffle(s), or partially perforated baffles. The axially extending solid baffle allows for cavity depth variation in the silencer to optimize tuning of particular frequencies from the auxiliary power unit.


James Napier Photo 5

Turbine Inlet Silencer

US Patent:
5491308, Feb 13, 1996
Filed:
Apr 9, 1992
Appl. No.:
7/866142
Inventors:
James C. Napier - San Diego CA
Robert G. Thompson - San Diego CA
Assignee:
Sundstrand Corporation - Rockford IL
International Classification:
E04F 1704
US Classification:
181224
Abstract:
In order to reduce noise transmission through the air inlet duct (16) of a turbine engine (10), the air inlet duct (16) provides a non-linear path defined by a bend (24) for air from a source, and the turbine engine (10) includes a sound attenuation assembly (26) in the form of a splitter dissipative silencer disposed near the bend (24) in the air inlet duct (16). More specifically, the turbine engine (10) is such that the splitter dissipative silencer (26) can be formed as a modular assembly (42) removably securable near the bend (24) in the air inlet duct (16) upstream of a radial compressor (12) for removal and/or replacement or availability as an optional component of the turbine engine (10).


James Napier Photo 6

Rotor With Asymmetric Blade Spacing

US Patent:
2012028, Nov 15, 2012
Filed:
May 13, 2011
Appl. No.:
13/107374
Inventors:
Loc Quang Duong - San Diego CA, US
Xiaolan Hu - San Diego CA, US
Nagamany Thayalakhandan - San Diego CA, US
Bo Zheng - San Diego CA, US
Benjamin E. Fishler - San Diego CA, US
Gao Yang - San Diego CA, US
Anthony C. Jones - San Diego CA, US
James C. Napier - San Diego CA, US
Jay M. Francisco - Chula Vista CA, US
Assignee:
HAMILTON SUNDSTRAND CORPORATION - Windsor Locks CT
International Classification:
F01D 5/22
US Classification:
416185
Abstract:
A turbine apparatus comprises a rotor with a hub section defined about a rotational axis and a plurality of blades attached to the hub section. The plurality of blades comprises a first group having a first angular spacing in a first circumferential sector of the rotor, and a second group having a second angular spacing in a second circumferential sector of the rotor. The first angular spacing is different from the second angular spacing, and the rotor blades are asymmetric about the rotational axis.


James Napier Photo 7

Detection Of Oil In Turbine Engine Bleed Air

US Patent:
6957569, Oct 25, 2005
Filed:
Apr 15, 2004
Appl. No.:
10/826636
Inventors:
James C. Napier - San Diego CA, US
Wayne A. Johnson - La Jolla CA, US
Stanley C. Mickaelian - El Cajon CA, US
Assignee:
Hamilton Sundstrand Corporation - Windsor Locks CT
International Classification:
G01M015/00
US Classification:
73116
Abstract:
A method of measuring the presence of oil in turbine bleed air that uses an aerosol sampler/size classifier to do a comparative measurement of the engine bleed air to the ambient air entering the engine on a real time basis by comparing quantity and size distribution of suspended particles of engine inlet air with suspended particles in the bleed air throughout the normal operating schedule of the engine and determining the presence of oil in the bleed air when the quantity and size distribution of suspended particles in the bleed air exceeds the quantity and size distribution of suspended particles in the engine inlet air by a predetermined amount.


James Napier Photo 8

Bearing Housing Cooling System

US Patent:
2012032, Dec 20, 2012
Filed:
Jun 20, 2011
Appl. No.:
13/164092
Inventors:
Xinwen Xiao - San Diego CA, US
James C. Napier - San Diego CA, US
Gao Yang - SanDiego CA, US
Loc Quang Duong - San Diego CA, US
Steven R. Falconer - Escondido CA, US
Assignee:
Hamilton Sundstrand Corporation - Windsor Locks CT
International Classification:
F02C 7/12
US Classification:
415180
Abstract:
A cooling system for the rear bearing capsule of a turbine in a gas turbine engine supported by an exhaust cone attached to multiple exit guide vanes that extend radially from the exhaust cone to an exhaust housing, comprises: an inlet air flow path through each guide vane between a source of cool ambient air and the rear bearing capsule; and at least one discharge air flow path that receives air from the inlet air flow path through each guide vane and passes the air through the exhaust cone from the rear bearing capsule to a high velocity gas flow path in the exhaust housing.


James Napier Photo 9

Automatic Engine Noise Reduction

US Patent:
2013017, Jul 11, 2013
Filed:
Jan 10, 2012
Appl. No.:
13/347147
Inventors:
Stacey H. Light - San Diego CA, US
James C. Napier - San Diego CA, US
Assignee:
HAMILTON SUNDSTRAND CORPORATION - Windsor Locks CT
International Classification:
F02C 9/00
US Classification:
60773, 60 3924
Abstract:
A method of reducing engine noise for an engine under little or low load conditions includes the steps of: establishing an engine idle speed for the engine when the engine has less than a predetermined minimum level of load; measuring the level of load on the engine; measuring the speed of the engine; and reducing the speed of the engine to the engine idle speed if the measured level of load on the engine is less than the predetermined minimum level of load and the measured speed of the engine is greater than the engine idle speed.


James Napier Photo 10

Methods Of Removing Contaminants From Heated Gases

US Patent:
4568365, Feb 4, 1986
Filed:
Oct 13, 1982
Appl. No.:
6/434103
Inventors:
Arthur G. Metcalfe - National City CA
James C. Napier - San Diego CA
William A. Compton - San Diego CA
Assignee:
Solar Turbines Incorporated - San Diego CA
International Classification:
B01D 4508
US Classification:
55 96
Abstract:
Methods of and apparatus for removing contaminants from heated gases by impact separation. The contaminants are collected by adhering them to a moving surface, and they are thereafter removed from that surface.