MARTIN L DOLL JR
Real Estate Commission in York, PA
License number
Pennsylvania RS149354A
Category
Real Estate Commission
Type
Real Estate Salesperson-Standard
Address
Address
York, PA 17403
Personal information
See more information about MARTIN L DOLL JR at radaris.comName
Address
Phone
278 Amad Dr, York, PA 17403
278 Amad Dr, York, PA 17403
278 Amad Dr, York, PA 17403
38 Baltimore St, Codorus, PA 17311
38 Baltimore St, Spring Grove, PA 17362
Professional information
Pressure Ratio Unload Logic For A Compressor
US Patent:
2007014, Jun 28, 2007
Filed:
May 31, 2006
Appl. No.:
11/421078
Inventors:
Curtis Crane - York PA, US
Martin Doll - York PA, US
Glenn Nickey - New Oxford PA, US
Martin Doll - York PA, US
Glenn Nickey - New Oxford PA, US
Assignee:
JOHNSON COLTROLS TECHNOLOGY COMPANY - Holland MI
International Classification:
F25B 49/00
US Classification:
062228400
Abstract:
A method is disclosed for controlling a discharge pressure of a compressor relative to a suction pressure of the compressor. The discharge pressure and suction pressure of the compressor are monitored and compared with a predetermined maximum pressure ratio of discharge pressure to suction pressure. If the pressure ratio of discharge pressure to suction pressure exceeds a predetermined pressure ratio limit less than the maximum pressure ratio, a controller unloads the compressor. The predetermined pressure ratio limit is determined relative to the measured suction pressure. The discharge pressure and suction pressure are further monitored and the compressor is inhibited from being reloaded for a predetermined time delay. After the predetermined time delay has elapsed, the compressor is reloaded only if i) the discharge pressure falls below a predetermined reload pressure and ii) the chiller system requires additional cooling capacity.
System And Method For Detecting Decreased Performance In A Refrigeration System
US Patent:
2006004, Mar 2, 2006
Filed:
Aug 25, 2004
Appl. No.:
10/926155
Inventors:
Martin Doll - York PA, US
John Hansen - Spring Grove PA, US
John Hansen - Spring Grove PA, US
Assignee:
YORK INTERNATIONAL CORPORATION - York PA
International Classification:
G01K 13/00, F25D 17/02, F25B 15/00
US Classification:
062129000, 062201000
Abstract:
Systems and methods are provided for detecting performance degradation in a refrigeration system. Specifically, the present invention provides systems and methods for detecting, at a very early stage, a low refrigerant charge and degradation in condenser performance of a refrigeration system.