RONGCHANG XIN
Engineers in Bristol, VA
License number
Virginia 0402034756
Issued Date
Jan 18, 2001
Expiration Date
Jan 31, 2003
Category
Professional Engineer License
Type
Professional Engineer
Address
Address
Bristol, VA
Professional information
Pressure Equalization System And Method
US Patent:
6823686, Nov 30, 2004
Filed:
Jul 12, 2002
Appl. No.:
10/194501
Inventors:
Eugene Chumley - Abingdon VA
Larry G. Pippin - Bristol VA
Pantelis V. Hatzikazakis - Kingsport TN
William Z. Sun - Arkadelphia AR
Timothy M. Wampler - Bluff City TN
Charles E. Zimmerman - Bristol TN
Rongchang Xin - Bristol VA
David T. Monk - Bristol VA
Larry G. Pippin - Bristol VA
Pantelis V. Hatzikazakis - Kingsport TN
William Z. Sun - Arkadelphia AR
Timothy M. Wampler - Bluff City TN
Charles E. Zimmerman - Bristol TN
Rongchang Xin - Bristol VA
David T. Monk - Bristol VA
Assignee:
Bristol Compressors, Inc. - Bristol VA
International Classification:
F25B 4100
US Classification:
621963, 622285, 62510, 417299, 417435, 417440, 4182012
Abstract:
A pressure equalization method and system is provided for starting a compressor while maintaining the condenser at a high pressure and includes a valve and a bleed port. The compressor has a compressor inlet for receiving a fluid at a first pressure and a compressor outlet for discharging the fluid at a second pressure, and is operable to compress the fluid from the first pressure to the second pressure. The valve is proximate to and in fluid communication with the compressor outlet and is movable to an open position when the compressor is operating to permit the fluid at the second pressure to flow through the valve and is movable to a closed position when the compressor stops operating to prevent backflow of the fluid at the second pressure through the valve toward the compressor inlet. The bleed port is upstream of the valve and in fluid communication with the compressor inlet to equalize the pressure of the fluid contained in the compressor when the compressor stops operating.
Compressors For Providing Automatic Capacity Modulation And Heat Exchanging System Including The Same
US Patent:
2002018, Dec 12, 2002
Filed:
Jan 29, 2002
Appl. No.:
10/058147
Inventors:
Joe Loprete - Bristol TN, US
David Monk - Bristol VA, US
Eugene Chumley - Abindon VA, US
Tyrone Simerly - Johnson City TN, US
John Narney - Bristol VA, US
Mark Trent - Bristol VA, US
Panteleimon Hatzikazakis - Kingsport TN, US
Tom Goodnight - Williston SC, US
Rongchang Xin - Bristol VA, US
Robert Douglas - Bristol VA, US
David Monk - Bristol VA, US
Eugene Chumley - Abindon VA, US
Tyrone Simerly - Johnson City TN, US
John Narney - Bristol VA, US
Mark Trent - Bristol VA, US
Panteleimon Hatzikazakis - Kingsport TN, US
Tom Goodnight - Williston SC, US
Rongchang Xin - Bristol VA, US
Robert Douglas - Bristol VA, US
International Classification:
F04B039/00
US Classification:
417/313000
Abstract:
A compressor for providing automatic capacity modulation is disclosed. The compressor comprises a compression chamber, a compressing member, a reexpansion area, a flow passage, a valve member, and a biasing member. The flow passage is in fluid communication with the compression chamber and the reexpansion area. In one position, the valve member permits flow through the flow passage and in a second position it prevents flow. The valve member is subjected to a first operating condition of fluid on one side and a second operating condition of the fluid on the other side. The biasing member exerts a biasing force on the valve member. When the first operating condition reaches a predetermined point relative to the second operating condition, the valve member moves and effects a change in the capacity of the compressor.