Chi M Ho

US Patent:

6684878, Feb 3, 2004

Filed:

Oct 11, 2001

Appl. No.:

09/974526

Inventors:

Chi Ming Ho - Simpsonville SC
Alan Dale Abbott - Manlius NY

Assignee:

Carrier Corporation - Syracuse NY

International Classification:

F24H 300

US Classification:

126110R, 126116 R, 126113, 126 99 R

Abstract:

An outdoor condensing furnace is provided with a condensate drain line which passes through the heat exchange compartment and to a location within the building where it can be discharged at temperatures above freezing. During heating operation, the drain line is maintained at temperatures above freezing such that the condensate will not freeze, and if condensate is trapped in the drain line and freezes during periods of nonheating operation, then it will be quickly thawed when heating operation is resumed. In an alternate embodiment, a drain pan is placed in direct contact with the primary heat exchanger and the condensate is routed to drain pan to be vaporized. Another embodiment provides for routing of the condensate from the condensing heat exchanger, through a flue pipe, and to a drain site which is at above freezing ambient conditions.

US Patent:

7324203, Jan 29, 2008

Filed:

Feb 8, 2005

Appl. No.:

10/906196

Inventors:

Chi Ming Ho - Medina OH, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

G01N 21/00

US Classification:

356437, 356432, 356440, 422 8209

Abstract:

A method for in-situ monitoring of an emission product includes transmitting a light, tuning the light to a first wavelength, receiving the light at a second location, varying the light from the first wavelength to a second wavelength during a first period, measuring a first absorption line and a first non-absorbing baseline signal during the first period, switching the light to a third wavelength, varying the light from the third wavelength to a fourth wavelength over a second period, and measuring a second absorption line and a second non-absorbing baseline signal during the second period. The light is transmitted from a first location by a tunable light source and received at a second location. The light passes along an optical path through the emission product between the first and second locations. The first wavelength corresponds to the first absorption line of the emission product.

US Patent:

20030077551, Apr 24, 2003

Filed:

Oct 19, 2001

Appl. No.:

10/045994

Inventors:

Ninev Zia - Indianapolis IN, US
Chi Ho - Simpsonville SC, US
Brian Reeves - West Point IN, US

International Classification:

F23Q003/00
F23D014/58
F23D014/62

US Classification:

431/354000, 431/264000, 431/286000

Abstract:

An inshot gas burner having an overall length of less than four inches that is capable of delivering between 5,000 and 5,800 Btus per unit length of burner per hour. The burner venturi section with a flame retainer positioned at its outlet that produces a firing rate of at least 9,900 Btus per inch of diffuser length.

US Patent:

20100215480, Aug 26, 2010

Filed:

Feb 25, 2009

Appl. No.:

12/392526

Inventors:

David Leach - Simpsonville SC, US
Jason Nathaniel Cook - Greenville SC, US
Chi Ming Ho - Simpsonville SC, US

Assignee:

GENERAL ELECTRIC COMPANY - Schenectady NY

International Classification:

F01D 17/00

US Classification:

415145, 701100

Abstract:

Systems and methods for controlling compressor extraction air flows from a compressor of a turbine system during engine turn down are provided. In one embodiment, a method for controlling compressor extraction air flows from a compressor of a turbine system during turn down includes a control unit monitoring one or more operating parameters of a turbine system associated with an exit temperature of a combustor of the turbine system. The method further includes the control unit detecting one or more operating parameters meeting or exceeding a threshold associated with a decrease in the exit temperature of the combustor. In response to detecting one or more operating parameter meeting or exceeding the threshold, a control signal is transmitted to at least one variable orifice located in the turbine system causing at least one variable orifice to alter at least one extraction air flow from the compressor.

US Patent:

20150033750, Feb 5, 2015

Filed:

Jul 31, 2013

Appl. No.:

13/955933

Inventors:

- Schenectady NY, US
Chi Ming Ho - Simpsonville SC, US
Harold Lamar Jordan - Greenville SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02C 9/28

US Classification:

60773, 60 39281

Abstract:

A power system includes a gas turbine configured to rotate a shaft to supply power to an electricity grid and a controller configured to detect a change in a speed of the shaft and to adjust a formula for controlling a fuel supplied to a combustor of the gas turbine based on detecting a changing shaft speed.