US 12,251,990 B2
Air vent device for a ventilation system of a vehicle
Måns Pihlsgård, Gothenburg (SE); and Johan Setterberg, Gothenburg (SE)
Assigned to Ningbo Geely Automobile Research & Dev. Co., Ltd., Ningbo (CN)
Filed by Ningbo Geely Automobile Research & Development Co., Ltd., Ningbo (CN)
Filed on Jul. 23, 2021, as Appl. No. 17/384,296.
Application 17/384,296 is a continuation of application No. PCT/CN2020/074273, filed on Feb. 4, 2020.
Claims priority of application No. 19156081 (EP), filed on Feb. 7, 2019.
Prior Publication US 2021/0347231 A1, Nov. 11, 2021
Int. Cl. B60H 1/34 (2006.01)
CPC B60H 1/345 (2013.01) [B60H 2001/3471 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An air vent device for a ventilation system of a vehicle, the device comprising:
a pipe forming an air channel through which an airflow flows,
a mouth at an end of the pipe that discharged the airflow into a compartment of the vehicle; and
a diffuser arranged in the mouth for disturbing the airflow discharged into the compartment, wherein the diffuser has a portion made of a flexible material arranged to cover a part of a cross-section area of the air channel and the diffuser portion is expandable for varying the size of the covered part of the cross-section area of the air channel, the diffuser is foldable between an unfolded state in which the diffuser portion covers a major part of the cross-section area of the air channel and a folded state in which the diffuser portion covers a minor part of the cross-section area of the air channel, and the diffuser portion is displaceable in a longitudinal direction of the pipe for adjustment of the distance between the diffuser portion and the mouth of the pipe while maintaining the air channel cross-section area covered by the diffuser portion;
wherein the diffuser further comprises:
an inner shaft and an outer shaft, the inner shaft and the outer shaft being arranged concentrically relative to each other and one of the inner shaft or the outer shaft telescopically slides relative to the other of the inner shaft or the outer shaft, and
pivotable link arms, each pivotable link arm having a first end connected to the diffuser portion and a second end pivotally connected to the telescopically sliding one of the inner shaft or the outer shaft to move the pivotable link arms to shift the diffuser portion between the folded and the unfolded states.