An airflow direction adjuster 1 comprises a housing 3 attachable to a panel of the vehicle (e.g. automobile). An air guide 5, ideally including louvres 51, is moveably attached to a downstream section of the housing, and a valve 7 (i.e. damper) is arranged in an upstream section of the housing. A manually-operated rotary knob 2 is rotatably connected to the air guide and is coupled to the valve via a cardan joint 6 and control shaft 8 to adjust an airflow rate when the knob is rotated by a vehicle occupant (e.g. by 90 degrees to fully close the valve from a fully open position). There is ideally only one cardan joint that comprises first and second yokes 62,68 and a cross bearing 61 having first 63 and second 67 pairs of diametrically opposite arms having the same radial length, their radial length being greater than their width. A slotted guide (11, figure 6) may couple the valve to the control shaft so the valve opens/closes with rotation of the shaft. The air guide may be pivotally attached to a cylindrical sleeve 4 that rotatably attaches to the housing.
Airflow direction adjuster
2022-12-07
Patent
Electronic Resource
English
IPC: | B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht |