ROBERT E STABLEY
Engineers in Yoe, PA
License number
Pennsylvania PE023392E
Category
Engineers
Type
Professional Engineer
Address
Address
Yoe, PA 17313
Professional information
System And Method For Detecting Rotating Stall In A Centrifugal Compressor
US Patent:
2004003, Feb 26, 2004
Filed:
Aug 14, 2003
Appl. No.:
10/641277
Inventors:
Robert Stabley - Dallastown PA, US
Gregory Beaverson - York PA, US
James Bender - York Haven PA, US
Gregory Beaverson - York PA, US
James Bender - York Haven PA, US
Assignee:
York International Corporation - York PA
International Classification:
F04D027/02
US Classification:
415/001000, 415/013000
Abstract:
A system and method is provided for detecting and controlling rotating stall in the diffuser region of a centrifugal compressor. The process begins with the detection or sensing of acoustic energy associated with the onset of rotating stall. A pressure transducer is placed in the gas flow path downstream of the impeller, preferably in the compressor discharge passage or the diffuser, to measure the sound or acoustic pressure phenomenon. Next, the signal from the pressure transducer is processed either using analog or digital techniques to determine the presence of rotating stall. Rotating stall is detected by comparing the detected energy amount, which detected energy amount is based on the measured acoustic pressure, with a predetermined threshold amount corresponding to the presence of rotating stall. Finally, an appropriate corrective action is taken to change the operation of the centrifugal compressor in response to the detection of rotating stall.
Method For Detecting Rotating Stall In A Compressor
US Patent:
7905702, Mar 15, 2011
Filed:
Mar 23, 2007
Appl. No.:
11/690222
Inventors:
Robert E. Stabley - Dallastown PA, US
Assignee:
Johnson Controls Technology Company - Holland MI
International Classification:
F01D 25/04
US Classification:
415118, 415 1, 415914
Abstract:
A system and method is provided for detecting and controlling rotating stall in the diffuser region of a compressor. A pressure transducer is placed in the gas flow path downstream of the impeller, preferably in the compressor discharge passage or the diffuser, to measure the sound or acoustic pressure phenomenon. Next, the signal from the pressure transducer is processed either using analog or digital techniques to determine the presence of rotating stall. Rotating stall is detected by comparing the detected energy amount, which detected energy amount is based on the measured acoustic pressure, with a predetermined threshold amount corresponding to the presence of rotating stall. Finally, an appropriate corrective action is taken to change the operation of the compressor in response to the detection of rotating stall.
System And Method For Stability Control In A Centrifugal Compressor
US Patent:
7356999, Apr 15, 2008
Filed:
Oct 10, 2003
Appl. No.:
10/683772
Inventors:
Robert Edward Stabley - Dallastown PA, US
Wanda Jean Miller - Harrisburg PA, US
Wanda Jean Miller - Harrisburg PA, US
Assignee:
York International Corporation - York PA
International Classification:
F25B 1/00, F25B 49/00, F01B 25/00, F01D 17/00
US Classification:
622283, 622285, 415 47, 415119, 415146, 415148
Abstract:
A stability control algorithm is provided for a centrifugal compressor. The stability control algorithm is used to control a variable geometry diffuser and a hot gas bypass valve (when provided) in response to the detection of compressor instabilities. The stability control algorithm can adjust the position of a diffuser ring in the variable geometry diffuser in response to the detection of a surge condition or a stall condition. In addition, the diffuser ring in the variable geometry diffuser can be adjusted to determine an optimal position of the diffuser ring. The stability control algorithm can also be used to open a hot gas bypass valve in response to the detection of continued surge conditions.
Method For Detecting Rotating Stall In A Compressor
US Patent:
8337144, Dec 25, 2012
Filed:
Dec 3, 2010
Appl. No.:
12/960024
Inventors:
Robert E. Stabley - Dallastown PA, US
E. Curtis Eichelberger - Harrisburg PA, US
E. Curtis Eichelberger - Harrisburg PA, US
Assignee:
Johnson Controls Technology Company - Holland MI
International Classification:
F01D 25/04
US Classification:
415118, 415 1, 415914
Abstract:
A system and method is provided for detecting and controlling rotating stall in the diffuser region of a compressor. A pressure transducer is placed in the gas flow path downstream of the impeller, preferably in the compressor discharge passage or the diffuser, to measure the sound or acoustic pressure phenomenon. Next, the signal from the pressure transducer is processed either using analog or digital techniques to determine the presence of rotating stall. Rotating stall is detected by comparing the detected energy amount, which detected energy amount is based on the measured acoustic pressure, with a predetermined threshold amount corresponding to the presence of rotating stall. Finally, an appropriate corrective action is taken to change the operation of the compressor in response to the detection of rotating stall.
Control System
US Patent:
2012010, Apr 26, 2012
Filed:
Jun 4, 2010
Appl. No.:
13/375986
Inventors:
Steven T. Sommer - York PA, US
Curtis Christian Crane - York PA, US
Florin Iancu - Silver Spring MD, US
John Trevino, JR. - York PA, US
Robert E. Stabley - Dallastown PA, US
Gregory K. Beaverson - York PA, US
Eric J. Smyder - York Haven PA, US
Patrick C. Marks - York PA, US
Rudy Chervil - Mountville PA, US
Curtis Christian Crane - York PA, US
Florin Iancu - Silver Spring MD, US
John Trevino, JR. - York PA, US
Robert E. Stabley - Dallastown PA, US
Gregory K. Beaverson - York PA, US
Eric J. Smyder - York Haven PA, US
Patrick C. Marks - York PA, US
Rudy Chervil - Mountville PA, US
Assignee:
JOHNSON CONTROLS TECHNOLOGY COMPANY - Holland MI
International Classification:
F04D 27/02, F04B 49/06
US Classification:
417 441, 415 1
Abstract:
A control system is provided that can identify the occurrence of a single surge cycle in centrifugal compressor using various methods and devices. Once the occurrence of a single surge cycle is identified, the control system can take remedial action to respond to the surge cycle, such as by adjusting the position of a variable geometry diffuser, and restore the centrifugal compressor to stable operation.
Control System
US Patent:
2008025, Oct 16, 2008
Filed:
Apr 14, 2008
Appl. No.:
12/102459
Inventors:
Mark R. Bodell - York PA, US
Robert E. Stabley - Dallastown PA, US
Wanda J. Miller - Mequon PA, US
Robert E. Stabley - Dallastown PA, US
Wanda J. Miller - Mequon PA, US
International Classification:
F04D 27/02, F25B 1/04
US Classification:
415 13, 415 1, 62498
Abstract:
A stability control algorithm is provided for a centrifugal compressor. The stability control algorithm is used to control a variable geometry diffuser and a hot gas bypass valve (when provided) in response to the detection of compressor instabilities. The stability control algorithm can adjust the position of a diffuser ring in the variable geometry diffuser in response to the detection of a surge condition or a stall condition. The diffuser ring in the variable geometry diffuser can be adjusted to determine an optimal position of the diffuser ring. The stability control algorithm can also be used to open a hot gas bypass valve in response to the detection of continued surge conditions.