| (19) |
 |
|
(11) |
EP 2 012 017 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
15.04.2009 Bulletin 2009/16 |
| (43) |
Date of publication A2: |
|
07.01.2009 Bulletin 2009/02 |
| (22) |
Date of filing: 28.03.2008 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL
PT RO SE SI SK TR |
|
Designated Extension States: |
|
AL BA MK RS |
| (30) |
Priority: |
02.07.2007 US 958063 P
21.03.2008 US 52853
|
| (71) |
Applicant: Emerson Climate Technologies, Inc. |
|
Sidney, OH 45365-0669 (US) |
|
| (72) |
Inventors: |
|
- Stover, Christopher
Versailles, Ohio 45380 (US)
- Seibel, Stephen M.
Celina, Ohio 45822 (US)
|
| (74) |
Representative: Roberts, Mark Peter |
|
J.A. Kemp & Co.
14 South Square
Gray's Inn
London WC1R 5JJ
London WC1R 5JJ (GB) |
|
| |
|
| (54) |
Capacity modulated compressor |
(57) A heat pump system may include first and second heat exchangers, a compressor, and
a fluid conduit. The compressor may include a capacity modulation system providing
first, second, and third capacities of the compressor. The second capacity may be
less than the first capacity and greater than the third capacity. The fluid conduit
may provide fluid communication between the first and second heat exchangers and the
compressor. The fluid conduit may define a first flow path from the compressor to
the first heat exchanger and from the first heat exchanger to the second heat exchanger
during a cooling mode and a second flow path from the compressor to the second heat
exchanger and from the second heat exchanger to the first heat exchanger during a
heating mode. The compressor may operate at the first capacity during the heating
mode and at the second capacity during the cooling mode.