Patent · US Expired

Motor vehicle heating and/or air conditioning device with improved air mixing

US6231437A · kind A · utility

11Cited by
3References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 21, 1999
Grant dateMay 15, 2001
Priority date
Expiry dateDec 21, 2019

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB60H2001/00721
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

A motor-vehicle heating and/or air conditioning device has a cold-air duct, a hot-air duct housing a heating radiator, a mixing chamber communicating with respective air outlets of the ducts and a mixing means. The mixing means has at least one flap of drum type which, in the "hot" position, closes off the outlet of the cold-air duct, and, in the "cold" position, closes off the outlet of the hot-air duct. The shutter wall of the flap includes at least one recess such that, when the flap is shifted from the "hot" position to the "cold" position, a cold airflow can pass through the recess so as to encounter a hot airflow.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.