Heat pump liquid heater

Details Heat pump liquid heater Heat pump liquid heater

2006-06-30

2009-06-09

Tapolcai, William E (Department: 3744)

Refrigeration

Disparate apparatus utilized as heat source or absorber

With vapor compression system

C285S139100

Reexamination Certificate

active

07543456

ABSTRACT:
A heat pump liquid heater for heating a liquid comprising: a heat pump; a liquid tank in heat communication with the heat pump, wherein the liquid tank comprises the liquid; and at least one metal condenser tube immersed into the liquid, wherein the metal condenser tube forms at least one coil. The metal condenser tube has a flattened double-tube configuration and a cross-section defined by concentric ovals such that at least a portion of the concentric ovals is in contact with one another thereby minimizing space between the flattened double-tubes. The heat pump comprises a tube-in-tube heat exchanger and a compressor, wherein the tube-in-tube heat exchanger recovers heat from refrigerant returning from the liquid tank and transfers the recovered heat to refrigerant going to the compressor thereby superheating the refrigerant.

REFERENCES:
patent: 2440372 (1948-04-01), Wilbur
patent: 4015962 (1977-04-01), Tompkins
patent: 4103509 (1978-08-01), Bottum
patent: 4173872 (1979-11-01), Amthor, Jr.
patent: 4255936 (1981-03-01), Cochran
patent: 4290275 (1981-09-01), Disco et al.
patent: 4293323 (1981-10-01), Cohen
patent: 4299098 (1981-11-01), Derosier
patent: 4320630 (1982-03-01), Uselton et al.
patent: 4330309 (1982-05-01), Robinson, Jr.
patent: 4366677 (1983-01-01), Uselton
patent: 4399664 (1983-08-01), Derosier
patent: 4404958 (1983-09-01), Boettcher
patent: 4492091 (1985-01-01), Whitwell et al.
patent: 4498622 (1985-02-01), Harnish
patent: 4517807 (1985-05-01), Harnish
patent: 4540874 (1985-09-01), Shaffer, Jr. et al.
patent: 4598557 (1986-07-01), Robinson et al.
patent: 4665712 (1987-05-01), Gehring et al.
patent: 4929001 (1990-05-01), Phillips, II
patent: 5052187 (1991-10-01), Robinson, Jr.
patent: 5213378 (1993-05-01), MacGregor
patent: 5255338 (1993-10-01), Robinson, Jr. et al.
patent: 5348037 (1994-09-01), Katchka
patent: 5495551 (1996-02-01), Robinson, Jr. et al.
patent: 5573182 (1996-11-01), Gannaway et al.
patent: 5906109 (1999-05-01), Dieckmann et al.
patent: 5946927 (1999-09-01), Dieckmann et al.
patent: 6173997 (2001-01-01), Nordstrom et al.
patent: 6212894 (2001-04-01), Brown et al.
patent: 6233958 (2001-05-01), Mei et al.
patent: 6430949 (2002-08-01), Noro et al.
patent: 6467288 (2002-10-01), Kuroki et al.
patent: 6733045 (2004-05-01), Harrington et al.
patent: 6908117 (2005-06-01), Pickett et al.
patent: 6913067 (2005-07-01), Hesse
patent: 2001/0032475 (2001-10-01), Chen et al.
patent: 2001/0048031 (2001-12-01), Noro et al.
patent: 2002/0000094 (2002-01-01), Kuroki et al.
patent: 2004/0144528 (2004-07-01), Kunimoto et al.
patent: 2005/0069423 (2005-03-01), Ebara et al.
patent: 2005/0120729 (2005-06-01), Zhang et al.
patent: 2005/0150969 (2005-07-01), Nakayama et al.
patent: 2005/0155364 (2005-07-01), Concha et al.
patent: 2005/0189431 (2005-09-01), Nakayama et al.

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