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:
Mar. 14, 2000
Filed:
Sep. 08, 1998
Yong Il Kwon, Plymouth, MI (US);
Dennis Anthony Vermette, Westland, MI (US);
Sean Patrick Cavanaugh, Farmington Hills, MI (US);
Hiroki Yanase, Dearborn, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
An air handling system for use in an air conditioning system of an automotive vehicle includes a housing which defines an air passage. The air handling system includes a blower disposed in the housing, an evaporator disposed in the housing for cooling air which passes through it. A heater core is also disposed in the housing downstream from the evaporator for heating the air as it is passed through it. The air handling system also includes a temperature blend door system having a first temperature blend door disposed in a bypass passage defined between the evaporator and the air outlets of the housing. The first temperature blend door is pivotable about a central axis from a closed position to an open position. A shoulder is formed in the housing for sealingly engaging a first end of the first blend door when the blend door is in a fully closed position and for controlling the amount of air flowing passed the first end as the first temperature blend door is pivoted toward a fully opened position. A second temperature blend door is disposed in the passage between the heater core and the evaporator. The first and second temperature blend doors move in an coordinated motion according to a predetermined strategy.