JAMES E BENDER
Engineers in York Haven, PA
License number
Pennsylvania PE026628E
Category
Engineers
Type
Professional Engineer
Address
Address
York Haven, PA 17370
Professional information
System And Method For Detecting Rotating Stall In A Centrifugal Compressor
US Patent:
6857845, Feb 22, 2005
Filed:
Aug 14, 2003
Appl. No.:
10/641277
Inventors:
Robert Edward Stabley - Dallastown PA, US
Gregory Keith Beaverson - York PA, US
James Edwin Bender - York Haven PA, US
Gregory Keith Beaverson - York PA, US
James Edwin Bender - York Haven PA, US
Assignee:
York International Corporation - York PA
International Classification:
F01D025/04
US Classification:
415 1, 415118, 415914
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.
Compressor Discharge Muffler
US Patent:
7578659, Aug 25, 2009
Filed:
Jan 31, 2005
Appl. No.:
11/047552
Inventors:
William Joseph Fox - Dover PA, US
Robert Stanley Miller - Chambersburg PA, US
James Edwin Bender - York Haven PA, US
Robert Stanley Miller - Chambersburg PA, US
James Edwin Bender - York Haven PA, US
Assignee:
York International Corporation - York PA
International Classification:
F04B 53/00, F01N 7/00
US Classification:
417312, 181238
Abstract:
A discharge muffler () in an HVAC&R system () includes a plurality of tubes () of predetermined length that are disposed at a predetermined spacing in substantially mutual axial alignment by a plate (). The tubes () are secured adjacent to a compressor discharge () to minimize pressure reduction, improve flow characteristics and improve efficiency of the HVAC&R system ().