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. 03, 2002
Filed:
Apr. 12, 1999
Klaus Arold, Sindelfingen, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
The invention relates to a heating or air-conditioning system and method for ventilating an occupant compartment of a vehicle having a climatic box in which a heat exchanger is accommodated, through which air can flow, and in which at least one air mixing chamber is constructed, which has an air inflow opening for warm air flowing through the heat exchanger and an air inflow opening for cold air flowing around the heat exchanger as well as outlet openings for mixed air, of which at least one outflow opening is arranged on the bottom in the air mixing chamber and at least one outflow opening is arranged on top in the air mixing chamber, and having closing members controlling the opening cross-sections of the inflow openings. For achieving a temperature gradient between the lower and the upper outflow opening, the closing member for the cold-air inflow opening is constructed in two parts such that an upper closing member part completely covers the upper dimension area and a lower closing member part completely covers the lower dimension area of the cold-air inflow opening, and the two closing member parts are controlled such that, in every closing member position, the lower closing member part covers a larger opening cross-section of the cold-air inflow opening than the upper closing member part.