Larry Steven James
Engineers at Mt Ephraim Rd, Adamstown, MD
License number
Colorado 19068
Issued Date
Feb 19, 1982
Renew Date
Mar 1, 2010
Expiration Date
Oct 31, 2013
Type
Professional Engineer
Address
Address
1749 Mount Ephraim Rd, Adamstown, MD 21710
Professional information
Multifluid Heat Pump System
US Patent:
4796437, Jan 10, 1989
Filed:
Oct 23, 1987
Appl. No.:
7/111635
Inventors:
Larry S. James - Adamstown MD
International Classification:
F25B 700
US Classification:
62 79
Abstract:
An economical heat pump system which uses a multifluid heat exchanger and the basic components of conventional heat pump systems including, as appropriate, a desuperheat exchanger. The invention may be operated in two conventional refrigerant flow configurations including heat pump space heating and cooling and simultaneous hot water heating via the desuperheater. The use of a multifluid heat exchanger allows the two refrigerant flow configurations to have nine operational modes. In one flow configuration the refrigerant is from the compressor, through the desuperheater, through a reversing valve, through the outdoor heat exchanger, through an expansion device, through the indoor heat exchanger and back to the compressor via the reversing valve. In the second configuration, the refrigerant flow is from the compressor, through the desuperheater, through the reversing valve, through the indoor heat exchanger, through an expansion device, through the outdoor heat exchanger and back to the compressor. In the four basic operational modes associated with the two refrigeration flow configurations (e. g.