The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 11, 2001
Filed:
Mar. 06, 2000
Steven M. Felber, Eagan, MN (US);
Timothy J. Kensok, Minnetonka, MN (US);
Ron S. Ragland, Minneapolis, MN (US);
Leisha J. Rotering, Minneapolis, MN (US);
Timothy J. Smith, Minneapolis, MN (US);
Russell A. Straate, Plymouth, MN (US);
Brad A. Terlson, Maple Grove, MN (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A ventilation system for ventilating fresh air to a conditioned space, the system capable of supplying substantially more air to the space than is removed by the system in order to prevent depressurization inside the space. Passing through the unit housing is an inflow chamber, an outflow chamber, and a make-up air duct. Two blowers, an intake blower and an exhaust blower, are placed within the inflow chamber and the outflow chamber in order to motivate inflow and outflow currents of air. A damper acts to open and close the make-up air duct. When the damper is in an open position and the intake blower operates at a higher speed than the exhaust blower the system increases the air pressure within the conditioned space. A heat transfer wheel is disposed within both the inflow chamber and the outflow chamber to exchange heat between the two currents of air. A pre-heater is placed in the make-up air duct to be used in cold weather conditions to heat the air which bypasses the heat recovery wheel. The system can also include a desiccant wheel and regenerative heater in order to provide the function of dehumidification.