Jason V Shaffer

US Patent:

20210332823, Oct 28, 2021

Filed:

Jul 9, 2021

Appl. No.:

17/371642

Inventors:

- Elyria OH, US
Timothy Carritte - Avon Lake OH, US
Jason V. Shaffer - Avon Lake OH, US

International Classification:

F04D 15/02
B60T 17/02
B60T 17/00

Abstract:

A compressed air supply apparatus for heavy vehicles includes a service reservoir, an air dryer in communication with the service reservoir, a purge reservoir in communication with the air dryer, a compressor for delivering compressed air through the air dryer preferentially to the purge reservoir and then to the service reservoir and a controller. The controller interrupts the charge cycle of the compressor in response to a moisture accumulation value being equal to or exceeding a wetness threshold value and the pressure in the service reservoir being within a predetermined pressure range. The controller then initiates a modified purge cycle of the air dryer, which includes iteratively regenerating the air dryer with air from the purge reservoir until at least one of the moisture accumulation value is less than the wetness threshold value and the pressure in the service reservoir is outside the predetermined pressure range.

US Patent:

20200277959, Sep 3, 2020

Filed:

Feb 28, 2019

Appl. No.:

16/288625

Inventors:

- Elyria OH, US
Timothy Carritte - Avon Lake OH, US
Jason V. Shaffer - Avon Lake OH, US

International Classification:

F04D 15/02
B60T 17/00
B60T 17/02

Abstract:

A controller apparatus is provided for a compressed air system. The controller apparatus comprises a control output for transmitting a control signal to interrupt a charge cycle of an associated compressor in a loading state. The controller apparatus further comprises control logic capable of initiating an interrupted charge cycle of the compressor based upon a moisture accumulation value indicative of the extent of moisture accumulated in an associated air dryer during the charge cycle of the compressor in the loading state.

US Patent:

20170167376, Jun 15, 2017

Filed:

Dec 15, 2015

Appl. No.:

14/969067

Inventors:

- Schenectady NY, US
Michael Anthony Cocca - Atlanta GA, US
Alston Ilford Scipio - Mableton GA, US
Sanji Ekanayake - Mableton GA, US
Jason Brian Shaffer - Smyrna GA, US

International Classification:

F02C 6/06
F01D 25/30
H02K 7/18
F02C 6/18
F02C 3/04

Abstract:

A power plant includes a turbine having a plurality of turbine stages and an extraction port in fluid communication with one or more of the turbine stages. The extraction port provides a flow path for a stream of combustion gas to flow out of the turbine. An exhaust duct is disposed downstream from the turbine and receives exhaust gas from the turbine. The exhaust duct is fluid communication with the extraction port. A coolant injection system injects a coolant into the stream of combustion gas to provide cooled combustion gas to the exhaust duct. The cooled combustion gas flows into the exhaust duct at a temperature that is higher than a temperature of the exhaust gas, thereby increasing the temperature of the exhaust gas within the exhaust duct. The increase in thermal energy may be used to produce steam downstream from the exhaust duct.

US Patent:

20170167379, Jun 15, 2017

Filed:

Dec 15, 2015

Appl. No.:

14/969142

Inventors:

- Schenectady NY, US
Sanji Ekanayake - Mableton GA, US
Jason Brian Shaffer - Smyrna GA, US
Joseph Philip Klosinski - Kennesaw GA, US
George Vargese Mathai - Atlanta GA, US

International Classification:

F02C 6/08
F01D 25/30
H02K 7/18
F02C 6/18
F02C 3/04

Abstract:

A power plant includes a compressor, a combustor downstream from the compressor and a turbine disposed downstream from the combustor. The compressor includes a compressor extraction port. The turbine includes a turbine extraction port that is in fluid communication with a hot gas path of the turbine and which provides a flow path for a stream of combustion gas to flow out of the turbine. An exhaust duct is disposed downstream from the turbine and receives exhaust gas from the turbine. A static mixer coupled to the turbine extraction port and to the compressor extraction port cools the stream of combustion gas upstream from the exhaust duct. The cooled combustion gas flows into the exhaust duct at a higher temperature than the exhaust gas and mixes with the exhaust gas within the exhaust duct to provide a heated exhaust gas mixture to a heat exchanger downstream from the exhaust duct.

US Patent:

20150322866, Nov 12, 2015

Filed:

May 12, 2014

Appl. No.:

14/274885

Inventors:

- Schenectady NY, US
Robert Frank Hoskin - Atlanta GA, US
Jason Brian Shaffer - Atlanta GA, US
Sanji Ekanayake - Atlanta GA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02C 9/18
F02C 7/18

Abstract:

The present application provides a gas turbine engine for low turndown operations. The gas turbine engine may include a compressor with a compressor bleed air flow, a turbine compartment with a turbine compartment air flow, a turbine, and an eductor. The eductor blends the compressor bleed air flow and the turbine compartment air flow into a blended air flow for use in cooling the turbine.