Title:
AUTOMATIC FRESH AIR EXCHANGE SYSTEM
Document Type and Number:
WIPO Patent Application WO2005108872
Kind Code:
A3
Abstract:
A system and method for automatically providing a fresh air exchange to a cargo unit is disclosed. The system includes a single gas sensor, preferably a carbon dioxide sensor, for providing an input to a controller which derives the carbon dioxide and oxygen levels in the unit. The controller then compares such derived values to preselected levels and selectively opens or closes air flow into the cargo unit in order to bring and maintain the desired oxygen and carbon dioxide levels within the unit.
Inventors:
FLEMING MALCOLM N JR (US)
HOFSDAL GILBERT BARRY (US)
HOFSDAL GILBERT BARRY (US)
Application Number:
PCT/US2005/011618
Publication Date:
March 16, 2006
Filing Date:
April 07, 2005
Export Citation:
Assignee:
CARRIER CORP (US)
International Classes:
F24F3/16; F25D17/04; (IPC1-7): F24F3/16; F25D17/04
Foreign References:
| US4961322A | 1990-10-09 | |||
| US3563757A | 1971-02-16 | |||
| US6092430A | 2000-07-25 | |||
| US4566282A | 1986-01-28 | |||
| US4742761A | 1988-05-10 | |||
| US5215498A | 1993-06-01 |
Other References:
See also references of EP 1756479A4
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