Air vent for a passenger car

Abstract

An air ventilation system includes a housing having a first end portion, a second end portion, and a middle portion, the middle portion having an inlet. A faceplate is mounted to the housing. The faceplate includes a first end portion, a second end portion, an upper edge portion, and a lower edge portion. A blade system includes a first blade extending along the upper edge portion and a second blade extending along the lower edge portion. A control system is operatively connected to the blade system. The control system is configured to rotate the first blade about a first blade axis and the second blade about a second blade axis to selectively guide airflow from the inlet between the upper edge and the upper edge portion, and between the lower edge and the lower edge portion.

Description

Technical Field

[0001] The information provided in this section is for the purpose of presenting the general background of this disclosure. To the extent described in this section, the work of the currently named inventors and aspects that may not otherwise be described as prior art at the time of filing are neither explicitly nor implicitly considered as prior art to this disclosure.

[0002] This disclosure relates to the field of vehicles, and more specifically, to air vents for passenger cars. Background Technology

[0003] The vehicle includes an environmental control system operable to maintain a comfortable temperature in the passenger compartment. Passenger compartment surfaces, such as the dashboard surface and center console surface, generally include air vents that direct regulated airflow into the passenger compartment. The air vents are adjustable, allowing passengers to direct airflow to specific areas of the passenger compartment.

[0004] In many cases, air vents are bidirectional, allowing for upward, downward, and left-right adjustments. Due to their adjustability, air vents are generally large and very noticeable to occupants, occupying a significant area of ​​space on the dashboard and other passenger compartment surfaces. Summary of the Invention

[0005] According to one aspect of this disclosure, an air ventilation system includes a housing having a first end portion, a second end portion, and an intermediate portion having an upper edge and a lower edge extending between the first end portion and the second end portion. The intermediate portion includes an inlet. A faceplate is mounted to the housing. The faceplate includes a first end portion, a second end portion, an upper edge portion extending between the first end portion and the second end portion, and a lower edge portion extending between the first end portion and the second end portion. A blade system is pivotally mounted to the faceplate. The blade system includes a first blade extending along the upper edge portion between the first end portion and the second end portion and a second blade extending along the lower edge portion between the first end portion and the second end portion. A control system is mounted to the faceplate and operatively connected to the blade system. The control system is configured to rotate the first blade about a first blade axis extending between the first end portion and the second end portion, and to rotate the second blade about a second blade axis extending between the first end portion and the second end portion, to selectively guide airflow from the inlet between the upper edge and the upper edge portion and between the lower edge and the lower edge portion.

[0006] Among other features, the first blade includes a first blade tip, a second blade tip, and a first intermediate blade portion, the first intermediate blade portion including a first gear element, and the second blade includes a third blade tip, a fourth blade tip, and a second intermediate blade portion, the second intermediate blade portion including a second gear element.

[0007] Among other features, the control system includes gears rotatably mounted to the face plate, the gears being operatively connected to a first gear element and a second gear element.

[0008] Among other features, the control system includes a control element operatively connected to the gear, the control element being operable to rotate the gear and to pivot the first and second blades about corresponding axes of the first and second blade axes.

[0009] Among other features, the faceplate includes an opening that receives a control element.

[0010] Among other features, the back panel is mounted to the face panel, and gears are rotatably supported between the back panel and the face panel.

[0011] Among other features, the first gear element includes a first worm gear, and the second gear element includes a second worm gear.

[0012] Among other features, the faceplate includes a first mounting element at a first end portion and a second mounting element at a second end portion, the faceplate being configured to pivot relative to the housing about the first and second mounting elements.

[0013] Among other features, the middle portion of the housing includes a first curvature defined between the inlet and the upper edge and a second curvature defined between the inlet and the lower edge.

[0014] Among the other features, the first curvature includes a first concave curvature, and the second curvature includes a second concave curvature.

[0015] According to this disclosure, an airflow control system for an air vent includes a faceplate comprising a first end portion, a second end portion, an upper edge portion extending between the first and second end portions, and a lower edge portion extending between the first and second end portions. A blade system is pivotally mounted to the faceplate. The blade system includes a first blade extending along the upper edge portion between the first and second end portions and a second blade extending along the lower edge portion between the first and second end portions. The control system is mounted to the faceplate and operatively connected to the blade system. The control system is configured to rotate the first blade about a first blade axis extending between the first and second end portions and to rotate the second blade about a second blade axis extending between the first and second end portions to selectively direct air above the upper edge portion and below the lower edge portion.

[0016] Among other features, the first blade includes a first blade tip, a second blade tip, and a first intermediate blade portion, the first intermediate blade portion including a first gear element, and the second blade includes a third blade tip, a fourth blade tip, and a second intermediate blade portion, the second intermediate blade portion including a second gear element.

[0017] Among other features, the control system includes gears rotatably mounted to the face plate, the gears being operatively connected to a first gear element and a second gear element.

[0018] Among other features, the control system includes a control element operatively connected to the gear, the control element being operable to rotate the gear and to pivot the first and second blades about corresponding axes of the first and second blade axes.

[0019] Among other features, the faceplate includes an opening for receiving control elements.

[0020] Among other features, the back panel is mounted to the face panel, and gears are rotatably supported between the back panel and the face panel.

[0021] Among other features, the first gear element includes a first worm gear, and the second gear element includes a second worm gear.

[0022] Among other features, the housing supports the face plate and includes a first end, a second end, and a middle portion, the middle portion having an upper edge and a lower edge extending between the first end and the second end. The middle portion includes an inlet.

[0023] Among other features, the face panel includes a first mounting element at a first end portion and a second mounting element at a second end portion, the first mounting element being connected to a first end of the housing and the second mounting element being connected to a second end of the housing, the face panel being configured to pivot relative to the housing about the first and second mounting elements.

[0024] According to this disclosure, a vehicle includes a body, a plurality of wheels supporting the body, a passenger compartment defined within the body, and an air ventilation system disposed within the passenger compartment. The air ventilation system includes a housing having a first end portion, a second end portion, and a middle portion having an upper edge and a lower edge extending between the first and second end portions. The middle portion includes an inlet. A face panel is mounted to the housing. The face panel includes a first end portion, a second end portion, an upper edge portion extending between the first and second end portions, and a lower edge portion extending between the first and second end portions. A blade system is pivotally mounted to the face panel. The blade system includes a first blade extending along the upper edge portion between the first and second end portions and a second blade extending along the lower edge portion between the first and second end portions. A control system is mounted to the face panel and operatively connected to the blade system. The control system is configured to rotate the first blade about a first blade axis extending between the first end portion and the second end portion, and to rotate the second blade about a second blade axis extending between the first end portion and the second end portion, so as to selectively guide the air flowing from the inlet between the upper edge and the upper edge portion and between the lower edge and the lower edge portion.

[0025] Option 1. An air ventilation system, comprising:

[0026] A housing, the housing including a first end, a second end, and a middle portion, the middle portion having an upper edge and a lower edge extending between the first end and the second end, the middle portion including an inlet;

[0027] A face plate mounted to a housing, the face plate including a first end portion, a second end portion, an upper edge portion extending between the first end portion and the second end portion, and a lower edge portion extending between the first end portion and the second end portion;

[0028] A blade system, pivotally mounted to a faceplate, the blade system comprising a first blade extending along an upper edge portion between a first end portion and a second end portion, and a second blade extending along a lower edge portion between the first end portion and the second end portion; and

[0029] A control system, mounted to a faceplate and operatively connected to a blade system, is configured to rotate the first blade about a first blade axis extending between the first end portion and the second end portion, and to rotate the second blade about a second blade axis extending between the first end portion and the second end portion, to selectively guide airflow from the inlet between the upper edge and the upper edge portion and between the lower edge and the lower edge portion.

[0030] Option 2. The air ventilation system according to Option 1, wherein the first blade includes a first blade end, a second blade end and a first intermediate blade portion, the first intermediate blade portion includes a first gear element, and the second blade includes a third blade end, a fourth blade end and a second intermediate blade portion, the second intermediate blade portion including a second gear element.

[0031] Option 3. The air ventilation system according to Option 2, wherein the control system includes a gear rotatably mounted to the face plate, the gear being operatively connected to a first gear element and a second gear element.

[0032] Option 4. The air ventilation system according to Option 3, wherein the control system includes a control element operatively connected to a gear, the control element being operable to rotate the gear and to pivot the first blade and the second blade about corresponding axes of the first blade axis and the second blade axis.

[0033] Option 5. The air ventilation system according to Option 4, wherein the face panel includes an opening for receiving control elements.

[0034] Option 6. The air ventilation system according to Option 4 further includes: a back plate mounted to the face panel, with gears rotatably supported between the back plate and the face panel.

[0035] Option 7. The air ventilation system according to Option 2, wherein the first gear element includes a first worm gear, and the second gear element includes a second worm gear.

[0036] Option 8. The air ventilation system according to Option 1, wherein the face panel includes a first mounting element at the first end portion and a second mounting element at the second end portion, the face panel being configured to pivot relative to the housing about the first mounting element and the second mounting element.

[0037] Option 9. The air ventilation system according to Option 1, wherein the middle portion of the housing includes a first curvature defined between the inlet and the upper edge and a second curvature defined between the inlet and the lower edge.

[0038] Option 10. The air ventilation system according to Option 9, wherein the first curvature includes a first concave curvature, and the second curvature includes a second concave curvature.

[0039] Option 11. An airflow control system for an air vent, comprising:

[0040] A face plate, the face plate including a first end portion, a second end portion, an upper edge portion extending between the first end portion and the second end portion, and a lower edge portion extending between the first end portion and the second end portion;

[0041] A blade system, pivotally mounted to a faceplate, the blade system comprising a first blade extending along an upper edge portion between a first end portion and a second end portion, and a second blade extending along a lower edge portion between the first end portion and the second end portion; and

[0042] A control system, mounted to the faceplate and operatively connected to the blade system, is configured to rotate the first blade about a first blade axis extending between the first end portion and the second end portion, and to rotate the second blade about a second blade axis extending between the first end portion and the second end portion, to selectively direct air above the upper edge portion and below the lower edge portion.

[0043] Option 12. The airflow control system according to Option 11, wherein the first blade includes a first blade end, a second blade end, and a first intermediate blade portion, the first intermediate blade portion including a first gear element, and the second blade includes a third blade end, a fourth blade end, and a second intermediate blade portion, the second intermediate blade portion including a second gear element.

[0044] Option 13. The airflow control system according to Option 12, wherein the control system includes a gear rotatably mounted to the face plate, the gear being operatively connected to the first gear element and the second gear element.

[0045] Option 14. The airflow control system according to Option 13, wherein the control system includes a control element operatively connected to a gear, the control element being operable to rotate the gear and to pivot the first blade and the second blade about corresponding axes of the first blade axis and the second blade axis.

[0046] Option 15. The airflow control system according to Option 14, wherein the face panel includes an opening for receiving control elements.

[0047] Option 16. The airflow control system according to Option 14 further includes: a back plate mounted to the face panel, with gears rotatably supported between the back plate and the face panel.

[0048] Option 17. The airflow control system according to Option 12, wherein the first gear element includes a first worm gear, and the second gear element includes a second worm gear.

[0049] Option 18. The airflow control system according to Option 11 further includes: a housing supporting a face plate, the housing including a first end, a second end, and a middle portion, the middle portion having an upper edge and a lower edge extending between the first end and the second end, the middle portion including an inlet.

[0050] Option 19. The airflow control system according to Option 18, wherein the face panel includes a first mounting element at a first end portion and a second mounting element at a second end portion, the first mounting element being connected to a first end of the housing and the second mounting element being connected to a second end of the housing, the face panel being configured to pivot relative to the housing about the first mounting element and the second mounting element.

[0051] Option 20. A vehicle comprising:

[0052] Body;

[0053] Multiple wheels that support the vehicle body;

[0054] Passenger compartment, which is confined within the vehicle body, and

[0055] An air ventilation system, installed in the passenger compartment, includes:

[0056] A housing, the housing including a first end, a second end, and a middle portion, the middle portion having an upper edge and a lower edge extending between the first end and the second end, the middle portion including an inlet;

[0057] A face plate mounted to a housing, the face plate including a first end portion, a second end portion, an upper edge portion extending between the first end portion and the second end portion, and a lower edge portion extending between the first end portion and the second end portion;

[0058] A blade system, pivotally mounted to a faceplate, the blade system comprising a first blade extending along an upper edge portion between a first end portion and a second end portion, and a second blade extending along a lower edge portion between the first end portion and the second end portion; and

[0059] A control system, mounted to a faceplate and operatively connected to a blade system, is configured to rotate the first blade about a first blade axis extending between the first end portion and the second end portion, and to rotate the second blade about a second blade axis extending between the first end portion and the second end portion, to selectively guide airflow from the inlet between the upper edge and the upper edge portion and between the lower edge and the lower edge portion.

[0060] Other areas of application of this disclosure will become apparent from the detailed description, claims, and drawings. The detailed description and specific examples are intended for illustrative purposes only and are not intended to limit the scope of this disclosure. Attached Figure Description

[0061] This disclosure will be understood more fully from the detailed description and accompanying drawings, in which:

[0062] Figure 1 This is a partial perspective view of the left side of a vehicle including a passenger compartment with an air ventilation system, according to this disclosure;

[0063] Figure 2 This is a perspective view of an air vent for a vehicle, including a base plate and a front plate, according to the present disclosure;

[0064] Figure 3 Based on this disclosure Figure 2 A partial exploded view of the air vent;

[0065] Figure 4 Based on this disclosure Figure 2 A cross-sectional perspective view of the air vent;

[0066] Figure 5 Based on this disclosure Figure 2 Exploded view of the face plate and blades of the air vent;

[0067] Figure 6 This is a cross-sectional side view of the air vent according to this disclosure;

[0068] Figure 7 This is a glass view of the face panel of the air vent according to this disclosure; and

[0069] Figure 8 This is a perspective view of the air vent blades and control knob according to the present disclosure;

[0070] Figure 9A It is based on the first orientation of this disclosure. Figure 2 A cross-sectional side view of the blades of the air vent;

[0071] Figure 9B It is based on the second orientation of this disclosure Figure 2 A cross-sectional side view of the blades of the air vent;

[0072] Figure 9C It is based on the third orientation of this disclosure Figure 2 A cross-sectional side view of the blades of the air vent;

[0073] Figure 10A It is based on the first orientation of this disclosure. Figure 2 A cross-sectional side view of the face panel of the air vent;

[0074] Figure 10B It is based on the second orientation of this disclosure Figure 2 A cross-sectional side view of the faceplate of the air vent; and

[0075] Figure 10C It is based on the third orientation of this disclosure Figure 2 A cross-sectional side view of the face panel of the air vent.

[0076] In the accompanying drawings, reference numerals may be used repeatedly to identify similar and / or identical elements. Detailed Implementation

[0077] refer to Figure 1 The vehicle 10 includes a body 12 supported on a plurality of wheels 14. The vehicle 10 includes a passenger compartment 16 in which an instrument panel 18 is mounted. The vehicle 10 includes an environmental control system (not shown) that is selectively operated to regulate the passenger compartment 16. A cooling system directs airflow into the passenger compartment to create a selected environment for the passengers. The airflow enters the passenger compartment 16 via an air ventilation system 20, which includes a first air vent 22 and a second air vent 24 mounted to the instrument panel 18. Additional air vents may be located in other areas of the vehicle 10, including seat surfaces, console surfaces, floor surfaces, etc.

[0078] Now refer to Figure 2 , Figure 3 and Figure 4 Describing the first air vent 22, it should be understood that the second air vent 24 includes a similar structure. The first air vent 22 includes a housing 26 that can be integrated into the instrument panel 18 and the face panel 28. As will be described in more detail herein, the face panel 28 allows passengers to control the direction and force of airflow through the environmental control system. Figure 3As shown, the housing 26 includes a first end 30 and a second end 32. A first face panel support 34 is disposed at the first end 30, and a second face panel support 36 is disposed at the second end 32.

[0079] The housing 26 also includes an intermediate portion 38 extending between the first end 30 and the second end 32. The intermediate portion 38 includes an opening 40 defining an inlet 42. The opening 40 is shown in the form of an elongated slot (also not separately labeled) having a curved end (not separately labeled). However, it should be understood that the geometry of the opening 40 can vary. The inlet 42 includes an inner end 44 provided with a seal 46, which can engage with a conduit (not shown) connected to an environmental control system.

[0080] The housing 26 is also shown as including an upper edge 50 and an upper edge 54 extending between a first end 30 and a second end 32. The intermediate portion 38 includes a first guide surface 58 having a first curvature and a second guide surface 64 having a second curvature. The first guide surface 58 extends from the inlet 42 to the upper edge 49, and the second guide surface 64 extends from the inlet 42 to the lower edge 54.

[0081] According to one aspect of this disclosure, the first curvature is a first concave curvature, and the second curvature is a second concave curvature. The first guide surface 58 and the second guide surface 64 shape the airflow passing through the air ventilation system 20. Although the first and second curvatures appear similar, it should be understood that different geometries can be used for airflow shaping in a particular passenger compartment.

[0082] According to this disclosure, the first curvature and the second curvature help to shape the airflow through the first air vent 22. More specifically, the air ventilation system 20 relies on the Coanda effect, which is the tendency of a fluid to remain attached to any type of surface. According to this disclosure, air passing through the inlet 42 will flow along the first guide surface 58 toward the upper edge 49 and along the second guide surface 64 toward the lower edge 54.

[0083] Continue to refer to Figure 3 The face plate 28 includes a first end portion 90 and a second end portion 92. The face plate 28 is also shown to include an upper edge portion 94 and a lower edge portion 96. The upper edge portion 94 and the lower edge portion 96 extend between the first end portion 90 and the second end portion 92.

[0084] The face panel 28 includes an outer curved surface 98. The face panel 28 is also shown as including a first mounting element 104 having a first pin 106 disposed at a first end portion 90 and a second mounting element 108 having a second pin 110 disposed at a second end portion 92. The first pin 106 extends through a first support opening 112 formed in the first face panel support 34, and the second pin 110 extends through a second support opening 114 formed in the second face panel support 36. With this configuration, the face panel 28 can pivot relative to the housing 26 about a central pivot axis “PA”. The pivot axis PA extends between the first end portion 90 and the second end portion 92. More specifically, the pivot axis PA extends between the first support opening 112 and the second support opening 114.

[0085] According to this disclosure, the face plate 28 includes an opening 118 formed in the curved surface 98. Figure 5 A faceplate 28 supports a blade system 134, which pivots to control the direction of airflow through the first air vent 22, as will be described in more detail herein. The blade system 134 is pivotally mounted between a first support member 136 located at a first end portion 90 of the faceplate 28 and a second support member 138 located at a second end portion 92 of the faceplate 28. The first support member 136 also supports a first mounting element 104, and the second support member 138 also supports a second mounting element 108.

[0086] refer to Figure 4 , Figure 5 and Figure 6 And continue to refer to Figure 3 The blade system 134 includes a first blade 140 and a second blade 142. The first blade 140 is pivotally supported between a first support member 136 and a second support member 138 and extends along an upper edge portion 94, and the second blade 142 is pivotally supported between the first support member 136 and the second support member 138 along a lower edge portion 96.

[0087] More specifically, the first blade 140 includes a first blade end 146 connected to the first support member 136, a second blade end 148 connected to the second support member 138, and a first intermediate blade portion 150. Similarly, the second blade 142 includes a third blade end 154 connected to the first support member 136, a fourth blade end 156 connected to the second support member 138, and a second intermediate blade portion 158. Figure 7 and Figure 8 As shown and continue to refer to Figure 5The first blade 140 includes a first gear element 164 centrally arranged along the first intermediate blade portion 150, and the second blade 142 includes a second gear element 166 centrally arranged along the second intermediate blade portion 158. The first gear element 164 includes a first worm gear 168, and the second gear element 166 includes a second worm gear 170.

[0088] According to this disclosure, the blade system 134 is connected to the propeller control system 174. For example... Figure 6 , Figure 7 and Figure 8 As shown, the propeller control system 174 includes a gear 180 operatively connected to a first worm gear 168 and a second worm gear 170. The gear 180 includes a first shaft 182 and a second shaft 184. The first shaft 182 is connected to a control knob 186 that extends through an opening 118 in the faceplate 28. The second shaft 184 is connected to a backplate 190 (…) connected to the faceplate 28. Figure 5 Support. More specifically, the back plate 190 includes a shaft support 192 that receives the second shaft 184. With this configuration, the gear 180 is rotatably supported between the face plate 28 and the back plate 190 and can be actuated by turning the control knob 186.

[0089] According to this disclosure, rotating the control knob 186 in a first direction (e.g., counterclockwise) causes the gear 180 to interact with the first worm gear 168 and the second worm gear 170, thereby causing the first blade 140 and the second blade 142 to rotate inward about corresponding axes of the first and second blade axes, such as... Figure 9A As shown in the diagram, the inward rotation of the first blade 140 and the second blade 142 causes the air passing through the air ventilation system 20 to diffuse. That is, the air passing through the inlet 42 follows the contours of the first guide surface 58 and the second guide surface 64 between the upper edge 49 and the upper edge portion 94 and between the lower edge 54 and the lower edge portion 96, thereby creating a wide airflow.

[0090] like Figure 9B As shown, rotating the control knob 186 in a second direction (e.g., clockwise) causes the first blade 140 and the second blade 142 to be substantially perpendicular to the airflow. With this orientation, the airflow through the air ventilation system 20 is substantially straight. Finally, further clockwise rotation of the control knob 186 causes the first blade 140 and the second blade 142 to rotate outwards, as... Figure 9C As shown, this results in a more concentrated airflow passing through the first air vent 22.

[0091] In addition to controlling the nature of the airflow (e.g., between diffused and concentrated airflow), the faceplate 28 can, as Figure 10A Rotate upwards as shown. Figure 10B Centered as shown, and / or as Figure 10C The downward rotation shown controls the height of the airflow. At this point, it should be understood that the air ventilation system 20 according to this disclosure provides selective and controllable air discharge without requiring a large and very noticeable vent.

[0092] The foregoing description is illustrative in nature and is in no way intended to limit this disclosure, its application, or use. The broad teachings of this disclosure can be implemented in various forms. Therefore, while this disclosure includes specific examples, its true scope should not be so limited, as other modifications will become apparent upon examination of the drawings, specification, and appended claims. It should be understood that one or more steps within a method may be performed in a different order (or simultaneously) without altering the principles of this disclosure. Furthermore, while each of the embodiments described above is described as having certain features, any one or more of those features described with reference to any embodiment of this disclosure may be implemented in and / or combined with features of any other embodiment, even if such combinations are not explicitly described. In other words, the described embodiments are not mutually exclusive, and substitutions of one or more embodiments for each other remain within the scope of this disclosure.

[0093] Various terms are used to describe spatial and functional relationships between elements (e.g., between modules, circuit elements, semiconductor layers, etc.), including “connected,” “joined,” “linked,” “adjacent,” “next to,” “on top,” “above,” “below,” and “set.” Unless explicitly described as “direct,” when describing the relationship between first and second elements in the above disclosure, the relationship can be a direct relationship in which no other intermediate elements exist between the first and second elements, or an indirect relationship in which one or more intermediate elements exist between the first and second elements (spatially or functionally). As used herein, the phrase “at least one of A, B, and C” should be interpreted as meaning logic using the non-exclusive logic “OR” (A or B or C) and should not be interpreted as meaning “at least one of A, at least one of B, and at least one of C.”

[0094] When the terms “about” or “substantially” are used in conjunction with numerical values ​​in this specification, they are intended to indicate that the associated numerical values ​​include manufacturing or operational tolerances (e.g., ±10%) near the stated numerical values. Furthermore, when the terms “generally” and “substantially” are used in conjunction with geometry, they are intended to indicate that precision of the geometry is not required, but the range of shapes is within the scope of this disclosure. Moreover, regardless of whether numerical values ​​or shapes are modified with “about,” “generally,” or “substantially,” it should be understood that these values ​​and shapes should be interpreted to include manufacturing or operational tolerances (e.g., ±10%) near the stated numerical values ​​or shapes.

[0095] The terms “a” and “an” do not indicate a limitation of quantity, but rather the presence of at least one of the referenced items. Unless the context clearly indicates otherwise, the term “or” means “and / or”. Throughout the specification, the reference to “an aspect” means that a particular element described in connection with that aspect (e.g., a feature, structure, step, or characteristic) is included in at least one aspect described herein and may or may not be present in other aspects. Furthermore, it should be understood that the described elements may be combined in suitable manner in each aspect.

[0096] When an element, such as a layer, film, region, or substrate, is referred to as "on another element," it can be directly on that other element or there may be intermediate elements present. In contrast, when an element is referred to as "directly on another element," there are no intermediate elements present.

[0097] In a diagram, the direction of the arrows typically indicates the flow of information (e.g., data or instructions) of interest. For example, when components A and B exchange various types of information, but the information transmitted from component A to component B is relevant to the diagram, the arrow may point from component A to component B. This unidirectional arrow does not imply that no other information is transmitted from component B to component A. Furthermore, for information sent from component A to component B, component B may send a request for the information or an acknowledgment of receipt of the information to component A.

Claims

1. An air ventilation system, comprising: A housing, the housing including a first end, a second end, and a middle portion, the middle portion having an upper edge and a lower edge extending between the first end and the second end, the middle portion including an inlet; A face plate mounted to a housing, the face plate including a first end portion, a second end portion, an upper edge portion extending between the first end portion and the second end portion, and a lower edge portion extending between the first end portion and the second end portion; A blade system pivotally mounted to a faceplate, the blade system comprising a first blade extending along an upper edge portion between a first end portion and a second end portion and a second blade extending along a lower edge portion between the first end portion and the second end portion; as well as A control system, mounted to a faceplate and operatively connected to a blade system, is configured to rotate the first blade about a first blade axis extending between the first end portion and the second end portion, and to rotate the second blade about a second blade axis extending between the first end portion and the second end portion, to selectively guide airflow from the inlet between the upper edge and the upper edge portion and between the lower edge and the lower edge portion.

2. The air ventilation system according to claim 1, wherein, The first blade includes a first blade end, a second blade end, and a first intermediate blade portion, the first intermediate blade portion including a first gear element, and the second blade includes a third blade end, a fourth blade end, and a second intermediate blade portion, the second intermediate blade portion including a second gear element.

3. The air ventilation system according to claim 2, wherein, The control system includes gears rotatably mounted to the face plate, the gears being operatively connected to a first gear element and a second gear element.

4. The air ventilation system according to claim 3, wherein, The control system includes a control element operatively connected to a gear, the control element being operable to rotate the gear and to pivot the first blade and the second blade about corresponding axes of the first blade axis and the second blade axis.

5. The air ventilation system according to claim 4, wherein, The faceplate includes an opening for receiving control elements.

6. The air ventilation system according to claim 4, further comprising: The back plate is mounted to the face plate, and gears are rotatably supported between the back plate and the face plate.

7. The air ventilation system according to claim 2, wherein, The first gear element includes a first worm gear, and the second gear element includes a second worm gear.

8. The air ventilation system according to claim 1, wherein, The faceplate includes a first mounting element at the first end portion and a second mounting element at the second end portion, the faceplate being configured to pivot about the first mounting element and the second mounting element relative to the housing.

9. The air ventilation system according to claim 1, wherein, The middle portion of the housing includes a first curvature defined between the inlet and the upper edge and a second curvature defined between the inlet and the lower edge.

10. The air ventilation system according to claim 9, wherein, The first curvature includes a first concave curvature, and the second curvature includes a second concave curvature.

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