NL2027745B1

NL2027745B1 - Wind hood and ventilated enclosed space provided with such wind hood

Info

Publication number: NL2027745B1
Application number: NL2027745A
Authority: NL
Inventors: Joseph Mathijs Kurvers Richard; Johannes Hendrikus Pijnenburg Kris
Original assignee: Fancom Bv
Priority date: 2021-03-12
Filing date: 2021-03-12
Publication date: 2022-09-27
Also published as: EP4305356A1; CA3212698A1; WO2022191711A1

Abstract

A wind hood is provided for a ventilation inlet of a ventilated space, the wind hood comprising a housing with a hood outlet, a ﬁrst hood inlet, a second hood inlet, wherein at least one air-ﬂow path is provided between the hood outlet and the ﬁrst hood inlet, the hood outlet and the second hood inlet, and between the first hood inlet and the second hood inlet.

Description

P129434NL00 Title: Wind hood and ventilated enclosed space provided with such wind hood

TECHNICAL FIELD The invention relates to a wind hood for a ventilation inlet of a ventilated space, comprising a housing with a hood outlet and a first hood inlet wherein at least one air-flow path is provided between the hood outlet and the first hood inlet.

BACKGROUND Barns are used for holding livestock or growing plants or flowers. A barn typically comprises a number of walls which support a roof. Between the walls and the roof, a ventilated space for holding animals or plants is obtained. For allowing an air-flow into the ventilated space of the barn, one or more ventilation inlets are provided through the walls and/or the roof. For allowing an air-flow out of the ventilated space of the barn, one or more ventilation outlets are provided through the walls and/or the roof. Ventilation of the ventilated space may be performed by allowing the aix- flow into the ventilated space as well as allowing the air-flow out of the ventilated space, thereby replacing air in the ventilated space with fresh outside air. Outside air may comprise more oxygen and less CO2 than the air inside the ventilated space, for example due to the presence of animals in the ventilated space.

For controlling ventilation of the ventilated space in the barn, a ventilation system is provided. The ventilation system may comprise one or more fans for displacing air. Using the fans, an air-flow through a ventilation inlet and/or a ventilation outlet may be constituted.

In use, the ventilation inlets are exposed to the environment outside the barn. Outside the barn, wind may present causing air-flows as displacements of air. If wind would flow into a ventilation inlet directly, the ventilation system may be unable to control the ventilation of the ventilation space due to the uncontrollable air-flow caused by the wind. To prevent the wind from flowing direct into a ventilation inlet, a wind hood is used.

A typical wind hood comprises a housing with an air inlet and an air outlet. The air outlet is aligned with the ventilation inlet of the barn, and the air inlet is oriented downwards toward the ground. Typically, wind does not flow upwards directly into the air inlet, and as such, the ventilation inlet is protected by the wind hood from direct influx of wind.

SUMMARY It has been observed that a drawback of known wind hoods may be that they can have a large air flow resistance, or drag, between the hood inlet and the hood outlet. The air flowing through these wind hoods can be turbulent, especially at higher wind velocities. This may require the fans of the ventilation system to use more power to constitute sufficient ventilation of the ventilated space, or may result in an undesired high level of ventilation. It has been observed that in known wind hoods, pressure may build up inside the housing of the wind hood for example due to high wind velocities or sudden gusts of wind. It has been observed that this pressure build-up may negatively impact flow of air into the barn, and/or make it harder to maintain a preferred air flow by the ventilation system. An object of the present disclosure is to provide a wind hood, in which, while maintaining the advantages, the disadvantages mentioned are diminished at least in part. In particular, the disclosure contemplates providing a wind hood with improved air flow capacity and/or which is less sensitive to high wind velocities or sudden gusts of wind. A first aspect of the disclosure relates to a wind hood for a ventilation inlet of a ventilated space, comprising a housing with a hood outlet and a first hood inlet wherein at least one air-flow path is provided between the hood outlet and the first hood inlet. The housing further comprises a second hood inlet, and at least one air-flow path is provided between the hood outlet and the second hood inlet, and at least one air-flow path is provided between the first hood inlet and the second hood inlet.

When a second hood inlet is present in the wind hood housing, at least three flow-paths for air are provided: from the first hood inlet to the hood outlet, from the second hood inlet to the hood outlet and from the first hood inlet to the second hood inlet. By virtue of the air-flow path between the first hood inlet and the second hood inlet, pressure built up in the housing due to wind may be reduced as excess pressure may leave the housing through the second hood inlet. Without the pressure build-up, or with a reduced pressure build-up, the ventilation system may be disturbed less by the wind outside the barn.

In general, an air-flow path may be defined as a confined space, conduit or funnel through which air may flow. An air-flow path may for example be confined by a part of a housing or an air flow guidance member. An air-flow path may be a three-dimensional volume in which other matter is absent such that air may flow through the volume in any direction.

In general, a hood inlet or hood outlet may be any through-hole through the housing, or may be formed by any opening in the housing or by local absence of the housing. The first hood inlet and the second hood inlet may be similarly shaped, or may have a different shape and/or flow-through area. The flow-through area of a hood inlet or hood outlet may be delimited by a perimeter, which perimeter may have any shape, such as rectangular, square, circular, any other polygon, or any combination thereof. The perimeter may for example be formed at least partially by the housing and/or part of the barn through which a ventilation inlet is provided, such as a wall or roof. Apart from the hood outlet, first hood inlet, and the second hood inlet, the housing may be substantially air-tight, in particular when connected to the wall or roof of the barn.

Throughout this disclosure, the first hood inlet and the second hood inlet may be referred to as the hood inlets. In use, one of the hood inlets may thus be an inlet for air, and the other of the hood inlets may be an outlet for air out of the housing of the wind hood.

Instead of a barn, the wind hood may be readily applied to any other ventilation inlet of any other building, such as a factory, industrial building, agricultural building such as a greenhouse, a dwelling, apartment building, or any other building in general.

In further embodiments, the first hood inlet and the second hood inlet may face in different directions out of the housing. Facing in different directions may imply that a normal vector of a flow-through area of the first hood inlet oriented away from the housing does not intersect with a flow- through area of the second hood inlet.

When the first hood inlet and the second hood inlet face in different directions out of the housing, only one hood inlet may directly face the direction of the wind. As such, the other hood inlet may act as an outlet for excess pressure built up in the housing. In general, a hood inlet or hood outlet may face in a direction corresponding to a normal vector of a flow- through area of said hood inlet or hood outlet. When a perimeter surrounding a hood inlet or a hood outlet does not define a flat flow-through area, the normal vector may be an average normal vector of the non-flat flow-through area.

As a particular option, the first hood inlet and the second hood inlet may face in opposite directions. Facing in opposite directions implies that a normal vector of a flow-through area of the first hood inlet oriented away from the housing is approximately parallel or parallel to a normal vector of a flow-through area of the second hood inlet oriented away from the housing. For example, the hood inlets may in use face sideways — i.e.

parallel or approximately parallel to the horizon - up and down —1.e. parallel or approximately parallel to the gravity vector - or in any other angle relative to the horizon.

The ventilation system may comprise a control valve for 5 controlling a flow-through area of a ventilation inlet of the barn, or for at least controlling a flow of air through the ventilation inlet. Especially when the control valve is in a substantially closed position, the pressure build-up in the wind hood may be high if no second hood inlet is provided, since air cannot easily flow through the ventilation inlet and thus not through the hood outlet which is fluid communication with the ventilation inlet.

As an option, the hood outlet may be positioned between the first hood inlet and the second hood inlet. As a result, the air-flow path between the first hood inlet and the second hood inlet may pass the hood outlet. The air-flow path between the first hood inlet and the second hood inlet and the air-flow path between the first hood inlet and the second hood inlet may as such partially overlap. For air flowing into the first hood inlet, the second hood inlet may be further downstream than the hood outlet.

As a further option, which as other options may be readily applied to any embodiment of the wind hood, the first hood inlet may be oriented at an angle relative to the hood outlet — i.e. the flow-through area of the first hood inlet is not parallel to the flow-through area of the hood outlet. To guide air-flow between the first hood inlet and the hood outlet, the wind hood may further comprise one or more air guidance members.

An air guidance member may on its own or for example together with the housing and/or any other air guidance member(s) form a conduit through which air may flow. When the first hood inlet is oriented at an angle relative to the hood outlet, no straight air-flow path may be present between the first hood inlet and the hood outlet. An air guidance member may guide the air flow between the first hood inlet and the hood outlet.

As an even further option, multiple air flow guidance members may be positioned in the housing, and as such multiple, in particular separate, air-flow paths may be provided between the first hood inlet and the hood outlet. The multiple air-flow paths may be constrained by one or more air flow guidance members and the housing.

Any air flow guidance member may be embodied as an insert connectable to the housing. Any air flow guidance member may extend between a top cover and a bottom cover of the housing. Any air flow guidance member may extend approximately from a flow through area of one of the hood inlets to a flow through area of the hood outlet.

By guiding an air-flow with the one or more air flow guidance member, a more laminar air-flow may be obtained. A more laminar air-flow may result in less resistance for air to move through the wind hood.

The housing may comprise a top cover, a bottom cover opposite to the top cover, and a front cover extending between the top cover and the bottom cover. Top and bottom here refers to the state of the housing in use, i.e. when the wind hood is connected to wall or roof of a barn. The hood outlet may be positioned opposite to the front cover between the top cover and the bottom cover. Hence, in use, the front cover may be positioned opposite to the ventilation inlet of the wall or roof.

When at least part of the front cover protrudes into housing towards the hood outlet, the front cover may act as an air guidance member for guiding air towards the hood outlet. Furthermore, the protruding part may prevent, optionally together with other air guidance members, a straight air-flow path between the hood inlets.

In embodiments, the housing of the wind hood may be shaped such that it can be nested with other housings before being installed. By having nestable wind hood housings, it may be possible to transport the wind hoods to the customer more space-efficient. When inserts or air guidance members are used, these may be separately connectable to the housing such that they do not affect the optional nesting properties of the housing.

In embodiments the wind hood can be made from plastic and for example by an injection moulding or vacuum forming process. Using plastic can result in a sufficiently strong and durable product while remaining relatively lightweight and economical.

The wind hood housing may be oblique to prevent sunlight from passing through the housing and as another option UV-resistant to prevent degradation of material properties such as strength and colour due to the effects of sunlight to which the housing may be exposed in use.

In further embodiments, the wind hood comprises an air filter arranged to remove particles from air flowing through the filter. More specifically, the air filter or air filters may be positioned in or on the housing, in one or more of the air-flow paths through the housing. As such, air passing over an air-flow path may pass through filter, and particulates may be filtered out of the air before the air reaches the ventilation inlet. An air filter may for example be mounted in front of a hood inlet or hood outlet.

A wind hood may further comprise one or more light blocking elements positioned inside the housing for limiting or preventing transmission of light between the first hood inlet and the hood outlet. As such, a different day-and-night rhythm may be achieved in the ventilated space. Any air guidance member may also act as a light blocking element.

In embodiments, the wind hood is placed over the ventilation inlet of a ventilation inlet in a wall or roof of the ventilated space. Placing the wind hood at least partially over the ventilation inlet limits or restricts wind from directly entering the ventilated space through the ventilation inlet.

As second aspect provides an architectural element for a barn, such as a wall, a door, a window, or a roof. The architectural element comprises a ventilation inlet through the architectural element and may be provided with a wind hood according to the first aspect, connected to the architectural element, wherein the ventilation inlet is in fluid communication with the hood outlet of the wind hood. Being in fluid communication, air may flow between the hood outlet of the wind hood and the ventilation inlet of the architectural element.

The architectural element may be provided with an air-flow valve for controlling an air flow through the ventilation inlet, wherein the air-flow valve may be positioned on an opposite side of the architectural element than the wind hood or on the same side of the architectural element than the wind hood. The air-flow valve may be part of a ventilation system of a barn.

The first hood inlet and/or the second hood inlet may be oriented substantially perpendicular to the architectural element. In particular, the hood inlets may be positioned in the left and right sides of the architectural element — wherein left and right are defined as one were standing in front of the architectural element.

The ventilated space may be comprised by a barn for keeping livestock such as chickens, pigs or cows. To ensure good livestock health and development, the climate in such a barn needs to be closely controlled. One way this can be done is by ensuring sufficient ventilation. However, to much ventilation may not be preferred, for example when the air outside the barn is too cold.

A third aspect provides a barn for keeping livestock or flora such as plants or flowers. The barn comprises multiple walls and a roof, at least one of which is an architectural element according to the second aspect. A ventilated space is provided between the walls and the roof.

In use, the walls may be positioned upright in a vertical direction oriented towards the roof. A normal vector of a flow-through area of the first hood inlet and/or the second hood inlet may be oriented at an angle relative to the vertical direction, and 1s in particular perpendicular to the vertical direction.

In a particular embodiment, at least one of the walls or the roof comprises a ventilation outlet, the barn further comprising a ventilation system comprising one or more fans for constituting an air-flow through the at least one ventilation outlet.

Using the ventilation system, air may be forced out of the ventilated space of the barn using for example one or more fans, ventilators, or other air displacement devices, for example placed in the roof of the barn. When air gets transported out of the ventilated space, the pressure inside the ventilated space can become locally lower than the pressure outside the ventilated space. The pressure outside the ventilated space may be the atmospheric pressure, and the pressure difference between the ventilated space and the outside may result in an air flow into the ventilated space, through one or more wind hoods.

It will be appreciated that different options disclosed in conjunction with one of the aspects may be readily applied to embodiments of the other aspects. In particular, any wind hood according to the first aspect may be used for any architectural element and any barn.

BRIEF DESCRIPTION OF THE DRAWINGS The aspects will be further elucidated on the basis of the exemplary embodiments that are represented in the drawings. In the drawings: Fig. 1A shows in a schematic top view an example of a barn; Fig. 1B shows the barn in a schematic front view; Figs. 2A and 2B shown different perspective views of a particular embodiment of a wind hood; Fig. 3A shows a side view of a wall of a barn; Fig. 3B shows a cross-sectional view over the line A-A’ shown in Fig. 3A; and Fig. 4 shows a detailed view of a bottom part of a wind hood.

DETAILED DESCRIPTION OF THE FIGURES Fig. 1A shows in a schematic top view an example of a barn 100, comprising four walls 102 positioned in a rectangle. Between the walls 102, a ventilated space 104 is provided. Fig. 1B shows the barn 100 in a schematic front view, showing a wall 102 and a roof 106 supported by the walls 102.

As an example, two walls 102 of the barn comprise two ventilation inlets 108 each. The walls are examples of architectural elements. Positioned in front of each ventilation inlet 108 is a wind hood 200.

As an example, a ventilation outlet 110 is provided by the roof

106. A ventilation system comprising a fan 112 is used to constitute an air- flow 114 from outside the barn 100, into the ventilated space 104 through the wind hood 200 and the ventilation inlet 108, and out of the ventilated space 104 through the ventilation outlet 110.

In general, in the figures, an air-flow is indicated with a swivelled dotted arrow, the arrow indicating an example of the direction of the air- flow.

In the top view of Fig. 1A, it is shown that a wind hood 200 comprises a first hood inlet 202 and a second hood inlet 204. As an example, in Fig. 1A, an air-flow 206 is shown flowing into the wind hood 200 via the first hood inlet 202. The air-flow then splits up in to a partial air-flow 206’ entering the ventilated space 104, and an excess air-flow 206” exiting the wind hood 200 through the second hood inlet 204.

The wind hood 200 will be elaborated on further in the following figures. In particular, the detailed section view of Fig. 3B is indicated in Fig. 1A by the dashed circle.

It will be appreciated that a barn 100 may comprise any number of walls, ventilation inlets, ventilation outlets, and wind hoods. Merely as an option, in the embodiment of Fig. 1A, wind hoods 200 are positioned on opposite walls 102. For clarity of figures 1A and 1B, not all wind hoods are provided with reference numerals.

A wind hood 200 may be placed over a ventilation inlet 108 and may be fixed to the wall 102 using for example plugs, screws, bolts or other fixation materials.

Figs. 2A and 2B shown different perspective views of a particular embodiment of a wind hood 200. In particular, Fig. 2A shows a top, left side and a front of the wind hood 200, and Fig. 2B shows a top, left side, and a back of the wind hood 200.

The wind hood 200 comprises a housing 201, which may be formed out of an integral part, or separated connected parts. In the particular example of Figs. 2A and 2B, the housing 201 is formed from a bottom part 220 and a top part 222. The bottom part 220 provides a bottom cover 224, and part of a front cover 226’. The top part 222 provides a top cover 228 and part of the front cover 226”. The top cover 228 is positioned opposite to the bottom cover 224. The front cover 226 is positioned opposite to the hood outlet 230.

As a particular option, the bottom part 220 and the top part 222 may be substantially similarly shaped. For example, the same mould may be used to produce the bottom part 220 and the top part 222. The bottom part 220 and the top part 222 may be connected air-tightly.

Fig. 2A and Fig. 2B shown the first hood inlet 202, which is constrained between outer edges of the top cover 228, front cover 226, and the bottom cover 224. The hood outlet 230, shown in Fig. 2B, is constrained between outer edges of the top cover 228 and the bottom cover 224.

As an example, a flow-through area of the first hood inlet 202 corresponds to a substantial part of a side area of the wind hood 200. Similarly, as another example, a flow-through area of the hood outlet 230 corresponds to a substantial part of a rear area of the wind hood 200. As such, a compact design of the wind hood 200 may be achieved.

The wind hood housing 202 may be made out of any material that is sufficiently strong to be attached to a wall or roof without collapsing and is sufficiently resilient against the weather effects the wind hood is exposed to, such as low temperatures, UV radiation from sun light and impact due to hail. Such a material can be a plastic, more particular a thermoplastic or a thermosetting polymer.

As an option depicted for example in Figs. 2A and 2B, a plurality of inserts 232 as air guidance members are positioned in the wind hood housing 201. The inserts 232 in these examples extend between the top cover 228 and the bottom cover 224. These inserts 232 are connectable to the bottom part 220 and the top part 222, and during transport, the inserts 232 may thus be transported separately from the bottom part 220 and the top part 222. The bottom part 220 and top part 222 may be transported nested into each other.

The inserts 232 are shown substantially convex, and approximately resembling a quarter circle. The quarter circle corresponds to the feature that the hood inlets 202, 204 are positioned perpendicular to the hood outlet 208.

As an option for example visible in Fig. 2A and Fig. 3B, part of the front cover 226” protrudes inwards towards the hood outlet 230. This protruding part form an air guidance member and is arranged to guide air flow from the hood inlets to the hood outlet 208. Furthermore, by virtue of the protruding part 226”, a straight air-flow path between the first hood inlet 202 and the second hood inlet 204 is prevented. An example of an air- flow path 260 between the first hood inlet 202 and the second hood inlet 204 and guided by the protruding part 226” of the front cover is depicted in Fig. 3B.

As shown in Fig. 2A, a bottom part 220 and/or a top part 222 may comprise a mounting rim 221 which may be used for mounting the wind hood 200 to a wall or roof. As another option, one or more mounting flanges

223 may be provided at or near a hood inlet such as the first hood inlet 202. Using the mounting flange 223, an air filter may be mounted in front of a hood inlet.

In general, one or more air filters may be positioned in or adjacent to at least one of the air-flow paths provided between the hood outlet and the first hood inlet, the hood outlet and the second hood inlet, and between the first hood inlet and the second hood inlet.

One or more air filters may be positioned outside the housing 202, for example in front of one or more of the first hood inlet, second hood inlet and the hood outlet and may as such be adjacent to an air-flow through the housing.

In may be preferred to have all or at least a substantial part of an air-flow flowing through an air filter.

When an air filter is positioned outside the housing 202, replacing or maintaining the air filter may be more convenient compared to when an air filter is positioned inside the housing 202. An air filter inside the housing 202 may however be protected better from outside influences.

Fig. 3A shows a side view of a wall 102 of a barn, with at an outer side 240 a wind hood mounted 200. At an opposite side of the wall 102, i.e. at a side of the ventilated space 104, an air-flow valve 242 is mounted.

The air-flow valve 242 comprise a hinged panel 244, which may hinge between a closed position in which no or substantially no flow of air is allowed through the air-flow valve 242 and an open position wherein the panel 244 does not or only partially restricts air flowing through the air-flow valve 242. In Fig. 3A, the panel 244 1s shown in an open position.

An example of an air-flow valve is disclosed in EP3142480, which provides a particularly good throw also with a low air-flow through the valve.

Fig. 3B shows a cross-sectional view over the line A-A’ shown in Fig. 3A.

The wind hood 200 shown in Fig. 3B comprises a plurality of inserts, of which only a first insert 232’ and a second insert 232” have been provided with a reference numeral.

The first insert 232’ and the second insert 232” are associated with the first hood inlet 202, as they are positioned in a halve of the wind hood 200 closest to the first hood inlet 202. Inserts associated with a hood inlet may be positioned at approximately equal distances from each other.

When wind flows past the wall 102 in a direction from the first hood inlet 202 to the second hood inlet 204, wind may enter the wind hood 200 via the first hood inlet 202. A first air-flow path 262 is provided between the first hood inlet 202 and the hood outlet 208, of which a first part is constrained between the front cover 226 and the first insert 232’. An excess air-flow path 260 allows any excess air to flow out of the wind hood 200 via the second hood inlet 204, which in use now has become a second hood outlet.

A second air-flow path 264 is provided between the first hood inlet 202 and the hood outlet 208. In particular, the second air-flow path 264 is constrained between the first insert 232’ and the second insert 232”. By virtue of the second air-flow path 264, air is guided towards the hood outlet 208 which may result in a more laminar flow of air.

A flow-through area for air between the first insert 232’ and the second insert 232” may be constant or approximately constant for an air flow flowing between the first insert 232’ and the second insert 232”. As such, turbulences in the air flow may be avoided.

Although the inserts have been depicted as continuous sheets in the figures, in other examples, one or more inserts may not extend fully between a hood inlet and a hood outlet.

As shown in Fig. 3B, the hood outlet 208 may be positioned between the first hood inlet 202 and the first hood outlet 204. The wind hood 200 may even be substantially symmetric in this top section view.

The inserts 232 shown in Fig. 3B may block light entering the wind hood 200 via the hood inlets from reaching the hood outlet 208. In particular, light cannot travel in any straight line between the flow-through area of any hood inlet to the hood outlet 208.

Fig. 4 shows a detailed view of a bottom part 220 of a wind hood

200. For clarity of the figure, the top part has been omitted. Illustrated by squares, a perimeter of a first flow-through area 252 of the first hood inlet 202 and a perimeter of a second flow-through area 254 of the second hood inlet 202 are depicted. The flow-through areas 252, 254 are delimited by the bottom part 220 and the omitted top part. In use, the flow-through areas 252, 254 may also be delimited by the wall or roof to which the wind hood is mounted.

A first normal vector 256 is associated with the first flow-through area 252, and a second normal vector 258 is associated with the second flow- through area 254. Fig. 4 shows that the first hood inlet 202 and the second hood inlet 204 may face in different directions out of the housing 201 —i.e.

the first normal vector 256 and the second normal vector 258 may diverge. In this particular embodiment, the first hood inlet 202 and the second hood inlet 204 even face in opposite directions — i.e. the first normal vector 256 and the second normal vector 258 are parallel or approximately parallel and point in opposite directions.

In use, the first normal vector 256 and the second normal vector 258 may be approximately parallel to a ground surface on which the barn is positioned — i.e. approximately perpendicular to the gravity vector.

In the description above, it will be understood that when an element such as layer, cover, insert, member, or part is referred to as being “on” or “onto” another element, the element is either directly on the other element, or intervening elements may also be present.

Furthermore, aspects may also be embodied with less components than provided in the embodiments described here, wherein one component carries out multiple functions. Just as well may the invention be embodied using more elements than depicted in the Figures, wherein functions carried out by one component in the embodiment provided are distributed over multiple components.

It is to be noted that the figures are only schematic representations of embodiments and are given by way of non-limiting examples.

For the purpose of clarity and a concise description, features are described herein as part of the same or separate embodiments, however, it will be appreciated that combination of all or some of the features described are also envisioned.

Claims

ConclusiesConclusions

1. Winddrukkap voor een ventilatie-inlaat van een geventileerde ruimte, de winddruk omvattende een behuizing met: - een drukkapuitlaat; - een eerste drukkapinlaat; - een tweede drukkapinlaat; waarbij ten minste een luchtstroompad is voorzien tussen: - de drukkapuitlaat en de eerste drukkapinlaat; - de drukkapuitlaat en de tweede drukkapinlaat; en - tussen de eerste drukkapinlaat en de tweede drukkapinlaat.Wind pressure hood for a ventilation inlet of a ventilated space, the wind pressure hood comprising a housing with: - a pressure hood outlet; - a first pressure cap inlet; - a second pressure cap inlet; wherein at least one airflow path is provided between: - the pressure hood outlet and the first pressure hood inlet; - the pressure hood outlet and the second pressure hood inlet; and - between the first pressure cap inlet and the second pressure cap inlet.

2. Winddrukkap volgens conclusie 1, waarbij de eerste drukkapinlaat en de tweede drukkapinlaat in verschillende richtingen uit de behuizing gericht zijn.Wind pressure hood according to claim 1, wherein the first pressure hood inlet and the second pressure hood inlet are directed out of the housing in different directions.

3. Winddrukkap volgens conclusie 1 of 2, waarbij de eerste drukkapinlaat en de tweede drukkapinlaat in tegengestelde richtingen gericht zijn.Wind pressure hood according to claim 1 or 2, wherein the first pressure hood inlet and the second pressure hood inlet are oriented in opposite directions.

4. Winddrukkap volgens een der voorgaande conclusies, waarbij de drukkapuitlaat tussen de eerste drukkapinlaat en de tweede drukkapinlaat gepositioneerd is.A wind pressure hood according to any one of the preceding claims, wherein the pressure hood outlet is positioned between the first pressure hood inlet and the second pressure hood inlet.

5. Winddrukkap volgens een der voorgaande conclusies, waarbij de eerste drukkapinlaat onder een hoek relatief tot de drukkapuitlaat is georiënteerd, en waarbij de winddrukkap voorts een luchtgeleidingslid voor geleiden van lucht tussen de eerste drukkapinlaat en de drukkapuitlaat omvat.A wind pressure hood according to any one of the preceding claims, wherein the first pressure hood inlet is oriented at an angle relative to the pressure hood outlet, and wherein the wind pressure hood further comprises an air guide member for guiding air between the first pressure hood inlet and the pressure hood outlet.

6. Winddrukkap volgens een der voorgaande conclusies, waarbij: - de behuizing een bovenbedekking, een onderbedekking tegenover de bovenbedekking, en een voorbedekking uitstrekkend tussen de bovenbedekking en onderbedekking omvat; en - de drukkapuitlaat tegenover de voorbedekking tussen de bovenbedekking en onderbedekking is gepositioneerd.Wind pressure hood according to any one of the preceding claims, wherein: - the housing comprises a top cover, a bottom cover opposite the top cover, and a front cover extending between the top cover and bottom cover; and - the pressure hood outlet is positioned opposite the front cover between the top cover and bottom cover.

7. Winddrukkap volgens conclusie 6, waarbij ten minste een deel van de voorbedekking de behuizing in uitpuilt richting de drukkapuitlaat.The wind pressure hood of claim 6, wherein at least a portion of the front cover bulges out into the housing toward the pressure hood outlet.

8. Winddrukkap volgens een der voorgaande conclusies, voorts omvattende een of meer lichtblokkeerelementen gepositioneerd in de behuizing voor limiteren van transmissie van licht tussen de eerste drukkapinlaat en de drukkapuitlaat.A wind pressure hood according to any one of the preceding claims, further comprising one or more light blocking elements positioned in the housing for limiting transmission of light between the first pressure hood inlet and the pressure hood outlet.

9. Winddrukkap volgens een der voorgaande conclusies, voorts omvattende een luchtfilter gepositioneerd in of naast ten minste een van de luchtstroompaden voorzien tussen: - de drukkapuitlaat en de eerste drukkapinlaat; - de drukkapuitlaat en de tweede drukkapinlaat; en - tussen de eerste drukkapinlaat en de tweede drukkapinlaat.Wind pressure hood according to any one of the preceding claims, further comprising an air filter positioned in or adjacent to at least one of the airflow paths provided between: - the pressure hood outlet and the first pressure hood inlet; - the pressure hood outlet and the second pressure hood inlet; and - between the first pressure cap inlet and the second pressure cap inlet.

10. Architecturaal element voor een stal, zoals een muur of een dak, omvattende een ventilatie-inlaat door het architecturaal element en voorzien van een winddrukkap volgens een der voorgaande conclusies verbonden met het architecturaal element, waarbij de ventilatie-inlaat in vloeistofverbinding met de drukkapuitlaat van de winddrukkap staat.An architectural element for a stable, such as a wall or a roof, comprising a ventilation inlet through the architectural element and comprising a wind pressure hood according to any one of the preceding claims connected to the architectural element, wherein the ventilation inlet is in fluid communication with the pressure hood outlet of the wind pressure hood.

11. Architecturaal element volgens conclusie 10, voorzien van een luchtstroomklep voor regelen van een luchtstroom door de ventilatie-inlaat, waarbij de luchtstroomklep op een tegengestelde zijde van het architecturaal element gepositioneerd is dan de winddrukkap.An architectural element according to claim 10, comprising an airflow valve for controlling an airflow through the ventilation inlet, the airflow valve being positioned on an opposite side of the architectural element than the wind pressure hood.

12. Architecturaal element volgens conclusies 10 of 11, waarbij de eerste drukkapinlaat en de tweede drukkapinlaat in hoofdzaak haaks op het architecturaal element zijn georiënteerd.An architectural element according to claims 10 or 11, wherein the first pressure hood inlet and the second pressure hood inlet are oriented substantially perpendicular to the architectural element.

18. Een stal voor houden van vee, omvattende meerdere muren en een dak, waarvan ten minste ene een architecturaal element volgens een der conclusies 10-12 is, waarbij tussen de muren en het dak een geventileerde ruimte is voorzien.A livestock shed comprising a plurality of walls and a roof, at least one of which is an architectural element according to any one of claims 10-12, wherein a ventilated space is provided between the walls and the roof.

14. Stal volgens conclusie 13, waarbij de muren in een verticale richting rechtopstaand richting het dak zijn gepositioneerd, en een normaalvector van een doorstroomoppervlak van de eerste drukkapinlaat onder een hoek relatief tot de verticale richting is georiënteerd, en in het bijzonder haaks op de verticale richting staat.A stable according to claim 13, wherein the walls are positioned upright in a vertical direction towards the roof, and a normal vector of a flow area of the first pressure hood inlet is oriented at an angle relative to the vertical direction, and in particular perpendicular to the vertical. direction.

15. Stal volgens conclusie 13 of 14, waarbij ten minste een van de muren of het dak een ventilatie-uitgang omvat, de stal voorts omvattende een ventilatiesysteem omvattende een of meer ventilatoren voor voorzien van een luchtstroom door de ten minste ene ventilatie uitgang.A stable according to claim 13 or 14, wherein at least one of the walls or the roof comprises a ventilation exit, the stable further comprising a ventilation system comprising one or more fans for providing an airflow through the at least one ventilation exit.