| (19) |
 |
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(11) |
EP 1 978 322 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
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02.07.2014 Bulletin 2014/27 |
| (43) |
Date of publication A2: |
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08.10.2008 Bulletin 2008/41 |
| (22) |
Date of filing: 24.01.2008 |
|
| (51) |
International Patent Classification (IPC):
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| (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 |
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Designated Extension States: |
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AL BA MK RS |
| (30) |
Priority: |
22.01.2008 US 17659
26.04.2007 US 789870
26.01.2007 US 698792
|
| (71) |
Applicant: Hayward Industries, Inc. |
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Elizabeth NJ 07201 (US) |
|
| (72) |
Inventors: |
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- Griffin, Ronald H.
Boonville,
North Carolina 27011 (US)
- Martin, David
Concord, North Carolina 28025 (US)
- Davidson, Carl Bennett
Mocksville, North Carolina 27028 (US)
- Shinkarev, Vintaly
Greensboro, North Carolina 27455 (US)
- Willis, Vance Elliot
Nashville, Tennessee 37209 (US)
- Mercer, Michael Damion
Nashville, Tennessee 37205 (US)
- Schardt, David L.
Franklin, Tennessee 37064 (US)
- Li, Gang
Manitowoc, Wisconsin 54220 (US)
|
| (74) |
Representative: Schmidt, Martin Peter |
|
IXAS Conseil
15, rue Emile Zola
69002 Lyon
69002 Lyon (FR) |
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| |
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| (54) |
Heat exchangers and headers therefor |
(57) A header (1010) for a heat exchanger comprising an inflow side (1018), an outflow
side (1020), a bypass chamber (1052) therebetween, and a pressure-sensitive flapper
valve (1146) proximal the bypass port. As pressure increases at the inflow side of
the header, the flapper valve (1146) opens proportionally, and, as pressure decreases
at the inflow side, the flapper valve (1146) closes proportionally. A tube-in-tube
heat exchanger (2020) including a helical tube-in-tube assembly (2046) adapted for-flow
therethrough of a plurality of fluids for heat transfer therebetween. A heat system
including an embodiment of the header and an embodiment of the tube-in-tube heat exchanger,
so as to provide a bypass of the tube-in-tube heat exchanger under a pressure condition.