FR2817331A1 - AIR SUPPLY TERMINAL DEVICE FOR AIR CONDITIONING PREMISES - Google Patents

Abstract

This device (10) comprises a supply air chamber (11) from which exit nozzles (12a1 ...) through which a supply air flow (L1) is sent into an adjacent mixing chamber ( B1) and has an opening for the passage of a circulating air flow (L2) from the room to the outside, this air flow (L2) being brought to join the supply air flow ( L1) inside the chamber (B1) and the combined flow then leaving the device.Application in particular to the ventilation of premises.

Description

TERMINAL AIR SUPPLY DEVICE

  The invention relates to a terminal device

supply air supply.

  The introduction of room air into the supply air upstream of the room space has already been used in many applications. Habitually

  the air is circulated by a conditioning unit

  air operation. Said air circulation passing through an air conditioning unit results in a loss of energy, increases the migration of impurities from one room to another and increases their accumulation in the

conduits or pipes.

  The present invention relates to a new type of supply air terminal device, in which the circulating air is mixed in an internal mixing chamber with the fresh supply air without heating

  nor cooling of the circulating air.

  The internal circulation of air in the device

  tif is a way to avoid costly solutions for

  recirculating air, using the ter-

  minimum supply air supply and simultaneously prevent impurities from being transferred from a

room to another.

  The device is characterized in that

  - the primary air is blown into the device

positive by means of nozzles,

  - the secondary air in the room is introduced into the

  positive using controlled traffic routes,

  - the secondary air flow is implemented medium-

  using the primary air induction effect

  mayor, - the primary air and the secondary air are mixed inside the device before the air is evacuated from the device to enter the space of the room, - the secondary air ratio can be adjusted using an internal control part located in the device

  supply air supply terminal, either manual-

  either through the use of an electric motor

cudgel,

  - the engine is controlled using a control device

  separate command or control algorithm, - the device can also function as a condensing device, and in this case it is equipped

  a condensate drainage system.

  When the device includes a

  control or adjustment of the induction ratio, the device

  tif can be used to regulate the air speed in the room and therefore to regulate the conditions of

  comfort regardless of the supply air flow

tion.

  The terminal supply air supply device

  tion is characterized in that the supply air jet, which it produces, behaves almost like an isothermal jet,

  which has the effect that in a cooling situation

  It is possible to prevent the air jet from feeding

  tation descends directly into the occupied area and therefore significantly avoids the risk of the appearance of a draft or draft, and in a heating situation, it is possible to avoid stratification adverse temperature in the ceiling. The behavior of the induction supply air terminal device also guarantees efficient mixing of the room air and high ventilation efficiency. Given these characteristics, the terminal device for inducing supply air is particularly suitable for

  operating situations, in which the air

  the mayor used as the supply air is much colder or warmer than the air in the room. Temperature

  supply air can vary greatly in different

  annuity operating situations of the installation, or the volume of the supply air, i.e.

  primary air flow, may vary during operation

  tioning. The terminal air supply device

  tation according to the invention, which achieves a strong induction of the circulating air, can be used for example in the following cases: - in cases where unheated supply air is used as primary air, - in hot air production systems, - in installations, in which cold storage units are used to standardize the level of consumption of peak consumption of electric energy around the clock, in variable air volume systems, to guarantee

  that the configuration of the air jet remains unchanged inde

  depending on the primary air volume, - in standard air volume systems, to adjust comfort conditions by adjusting the induction ratio. According to the invention, a new type of supply air terminal device is indicated, which comprises a supply air chamber, from which the supply air is led to pass through a nozzle. or preferably several high-speed nozzles for entering an internal mixing chamber contained in the device, which has the effect that said flow of supply air induces a flow of circulating air leaving the chamber to join a flow supply air into the mixing chamber. The flow of circulating air is therefore driven in a way

  assisted by the flow of supply air, for penetration

  enter the mixing chamber, and the air flow

  biné leaves the device. The combined air flow moves freely in the space of the room and passes through a flow interstice which extends over the entire length of the device or passes through a round or annular flow opening without any perforated surface, or so that there is a slow descent of the air flow. The device is therefore effective and can be used to circulate large volumes of air in the room. The circulating air flow is neither heated nor cooled by a heat exchanger, but the circulating air flow arrives from the space of the

  part and directly joins the primary air flow.

  In the device arranged in accordance with the invention, the air is sent from the space of the room in a manner induced by the flow of supply air to join the latter, and the flow of Combined air is sent from the mixing chamber into the room space through a gap or an elongated flow opening. Under these conditions, there is no provision for a perforated plate-like structure or any such system reducing the speed of the air flow on the discharge side of the mixing chamber. However, it is possible to use guide parts guiding

  flow or changing the shape of the flow stream.

  In this application, the flow of air directed from the supply air chamber through a nozzle or preferably a plurality of nozzles, is designated as the primary air flow, i.e. say the supply air flow, while the air flow induced by the primary air flow exhausted from the room space is designated as the flow

  circulating air, i.e. the secondary air flow

dary.

  In a terminal air supply device

  mentation, in which the supply air is sent via a supply air chamber and in which the room air is circulated using a device, the control of the induction ratio

  becomes necessary in some applications. That means

  it is possible to control the ratio between the volumes of the circulating air flow and the flow

supply air.

  For the implementation of the above-mentioned control, it is proposed in the present invention to use a separate device for controlling the induction ratio. In an advantageous embodiment, the device for controlling the induction ratio is formed by

  a structure, in which the circulating air flow comes from

  The space in the room is regulated by controlling the position of openings in a movable openwork plate, which is arranged in connection with a fixed openwork plate, and this in a certain relation to the openings provided in a plate openwork located in a fixed position. Under these conditions, the circulating air flow can be throttled at its entry into the device for introducing the circulating air flow on the supply side, and in this way the induction ratio between the flows is thus rule. The control can also be carried out by adjusting the combined air flow formed by the supply air flow and the circulating air flow. The more the combined air flow is throttled, the lower the induction ratio, i.e. the air volume of the circulating air flow becomes lower than that of the air flow d primary air. According to the present invention, the control device can also be located on the supply side of a side chamber, and therefore the circulation path of the circulating air flow is controlled for example by a plate movable in one direction linear, and simultaneously this circulating air flow is regulated and the induction distance is modified. The control plate can be located in the direction of the other guide wall of the mixing chamber and can be moved in its direction, for example at

  using a motor or manual remote control.

  Apart from the solutions mentioned above

  induction ratio control, you can also use

  a control device which is formed by a set of nozzles arranged in two separate rows

  and supplying fresh air from the supply chamber

  tion, the nozzles of the first row being produced with a larger cross-sectional flow area

  than that of the nozzles located in the second row. In comparison

  port with said nozzles, there is provided a control device formed by an openwork plate used to adjust

  the flow between the rows of said nozzles.

  More specifically, the invention relates to a supply air supply device, characterized in that (a) the terminal supply air supply device includes an air chamber and several nozzles extending from this chamber or a nozzle gap, allowing the introduction of a supply air flow

  in a mixing chamber inside the device

tif, and

  (b) that the terminal supply air supply device

  tion includes a flow opening located on one side of the device, through which a flow of circulating air is discharged from a room, which has the effect that said flow of circulating air is

  guided so as to join the air flow

  mentation by being induced by the air flow

  and that the air flows combine in the mixing chamber inside the device

  and that the combined air flow constituted by the flow

  supply air and circulating air flow

  culant is brought out of the device.

  According to another characteristic of the invention,

  the mixing chamber opens out through a circulation gap

lation in the space of the room.

  According to another characteristic of the invention, the device comprises a supply air chamber, and a side plate located at a distance from this chamber, and the device is open at its upper part and at its

  bottom so that it includes openings

  traffic patterns in the upper and lower parts

  of the device, which has the effect that the mixing chamber is open at its upper part and at its lower part, and the supply air chamber includes a nozzle gap or nozzles located on a surface

  side and through which the air flow

  tion is directed into the mixing chamber, which

  effect that the flow of supply air induces a flow

  air flowing through air openings

  culation to enter the mixing chamber, and the combined air flow formed from the supply air flow and the circulating air flow is evacuated from the device through the opening to enter the bedroom

mixture.

  According to another characteristic of the invention, the side plate comprises an associated rotary control register arranged so as to pivot around a pivot of

  so as to adjust the induction ratio between the flows

  ments. According to another characteristic of the invention, the device for adjusting the induction ratio is formed by a device in which a side plate is

  movable relative to the supply air chamber.

  According to another characteristic of the invention, the device comprises a mixing chamber situated between the supply air chamber and the side plate and in which the supply air flow is directed, and said air flow supply extends along a flow of circulating air from the room to

  join the latter in the mixing chamber in step-

  health through a flow opening formed in the plate

  side, and the combined air flow is exhausted from the

  positive obliquely upwards, preferably close

from the ceiling.

  According to another characteristic of the invention, there is provided a control register, which can be brought by pivoting into different control positions and the

  control register is associated with the air tube

  near the nozzles, which means that the damper functions as a control device

  to set the induction ratio between flows.

  According to another characteristic of the invention,

  the supply air chamber includes side plates

  Rales located on both sides, which results in a flow path between the supply air chamber and the side plate and the side chamber

  has, in its upper part, a hatch opening

  Lement for the flow of circulating air and the flow of supply air is guided from the supply air chamber by nozzles down towards the lower flow opening, which has for effect that the supply air flow causes the circulating air flow to flow so as to join it and the combined air flow is caused to pass through

  the flow opening and exit the device.

  According to another characteristic of the invention, the equipment used as an induction ratio control device includes a second register, which is

  mounted on a side surface of the air chamber

  mentation, which allows to control the induction ratio between flows, by means of rotation

from the registry.

  According to another characteristic of the invention, the terminal supply air supply device includes a supply air chamber and the supply air supply terminal device is an open structure at its level. upper part and closed on the sides and includes two partition walls, which has the effect that each lateral chamber of the device is limited by a

  side plate of the device and by a partition wall

  tion, and between the partition walls there is a discharge opening, from which the combined air flow formed from the supply air flow and the circulating air flow leaves the device, the supply air chamber includes nozzles, which are directed from the area between the central partition walls of the device in the direction of the exhaust opening, which results in the supply air flow is directed downward, which flow of supply air causes the flow of circulating air to join it first in the side chamber and further to exit the side chamber in the direction of the center of the device, and the combined air flow is evacuated from the device between the partition walls, by

the discharge opening.

  According to another characteristic of the invention, the device for controlling the induction ratio is a control register which is arranged so as to pivot around a pivot associated with the supply air chamber.

  and the control register is used to set the ratio

  induction port between the circulating air flow and

the supply air flow.

  According to another characteristic of the invention, the device for controlling the induction ratio is a

  device in which the partition walls are arranged

  ses so as to be close to the air chamber and away from it, to adjust the induction ratio between the flows. According to another characteristic of the invention,

  the supply air supply terminal device

  takes a supply air chamber and a nozzle gap or more nozzles extending from this chamber for the flow of supply air and opening into the side chamber, and that the terminal supply device d supply air is a closed structure on the sides and at its upper part and comprising side plates and air guide parts, which has the effect that in the device there is between the guide parts of the located on both sides of the central axis of the device, a path

  free flow below the supply air chamber

  tation for the flow of circulating air arriving from the room to enter the side chamber, which has

  effect that in the device the air chamber

  tion includes a nozzle interstice or nozzle interstices for directing the flow of supply air into the side chamber and inducing the flow of circulating air using said air flow from the space

  from the room to send it to the side chamber.

  According to another characteristic of the invention,

  the device includes a control device for the report

  induction port between the circulating air flow and the supply air flow, which control device is used to adjust the ratio, in which the supply air and the circulating air are present in

the combined air flow.

  According to another characteristic of the invention, the device for controlling the induction ratio is mounted

  between the air guide parts.

  According to another characteristic of the invention, the device for controlling the induction ratio includes an openwork plate located in a fixed position and another mobile openwork plate, which has the effect that under the effect of the movement of the openwork plate mobile it is possible to adjust the position of the openings of the openwork plate movable with respect to the openings of the openwork plate located in a fixed position, and it is also possible to adjust the total flow area in cross section for the flow air circulating through the perforated plates. According to another characteristic of the invention, the lateral chamber includes a device for controlling the

  induction report, which is formed by a register of com-

  rotary drive, which can be released and blocked

  flow into the side chamber.

  According to another characteristic of the invention, the device for controlling the induction ratio is mounted in the upper part of the lateral chamber at one of its edges so as to release and block a

  circulation path entering the lateral chamber.

  According to another characteristic of the invention, the device for controlling the induction ratio is a rectilinear plate, which is moved in a linear direction either manually or by means of the use

an electric motor.

  According to another characteristic of the invention,

  the control device is a rotary damper.

  According to another characteristic of the invention, the device for controlling the induction ratio is formed by a control plate comprising flow openings blocking and freeing a flow path towards the nozzles, which are arranged in two rows separated and have different cross-sectional flow surfaces, which means that the induction ratio control device can be used to control the flow through the

  nozzles having the cross-sectional flow area

  largest dirty, or through the nozzles having the smallest cross-sectional flow area, and thus adjust the speed of the primary air flow and the projection diagram inside the side chamber, and therefore also the induction effect of said primary air flow on the secondary air flow. According to another characteristic of the invention,

  the supply air supply terminal device

  takes side plates and a cover plate and includes an inner tube below it

  supply having a circular cross-section

  laire, and there is provided inside this chamber, a rotary control tube and, in the latter, flow openings on both sides of the central vertical axis, which has the effect that by rotating the rotary control tube, its position relative to the nozzles arranged in two separate rows can be controlled, the nozzles having a flow area in cross section different from that of the nozzles located in the other row, which has the effect that '' using the tube

  It is possible to control the penetration

  trant in the nozzles separate rows of nozzles and control the speed of the supply air flow entering the side chamber, and also the effect of induction of the supply air flow on

  the flow of circulating air, which arrives following the tra-

  flow jet to join the primary air flow

  mayor. According to another characteristic of the invention,

  the control register is combined with the air chamber

  mentation via a pivot point, the control register being able to be brought by pivoting in different control positions so as to regulate the induction ratio between the circulating air flow and the air flow power. According to another characteristic of the invention, the device for controlling the induction ratio is formed

  by a structural entity which is movable towards the dis-

  positive air intake terminal and can be separated from the latter and which includes air guiding parts and a structure connecting these parts, which causes the circulating air flow to move between the parts

  air guide to join the primary air flow

mayor.

  Other features and advantages of the pre-

  sente invention will emerge from the description given below

  after reference to the accompanying drawings, on the-

  which: - Figure 1A shows an axonometric view of a terminal device for supplying air

  according to the invention, which is open at its lower part

  superior and closed at its upper part and on the sides; - Figure lB is a cross-sectional view taken along line I-I in Figure lA; - Figure 1C shows a terminal supply air supply device equipped with an induction ratio control device; - Figure 1D is a cross-sectional view taken along line II-II in Figure lC; - Figure 1E is a separate axonometric view of the structure of the induction ratio control device; - Figure 2 shows an embodiment of the induction ratio control device according to the invention, the control device being arranged in a side chamber B1; FIG. 3A represents a third advantageous embodiment of the device for controlling the induction ratio, which is mounted on a side wall of the side chamber, that is to say in the air guiding part, so as to close and open the flow path terminating in the side chamber; - Figure 3B is an axonometric view of a movement mechanism for the control register of a control device according to Figure 3A;

  - Figure 3C shows an embodiment

  tion of the invention, in which a separate rotary control register is provided, which can be used to adjust the induction ratio between the flow of fresh air and the flow of circulating air, the register being mounted so as to be able to rotate at a pivot which is situated on a lateral surface of the supply air chamber; FIG. 3D represents a device according to the invention, in which outlet nozzles from the chamber

  with supply air direct the flow of supply air

  tation towards the ceiling of a room, which has the effect that due to the coanda effect the flow rises to the ceiling and the flow of supply air causes the flow of air circulating with it from the center of the room;

  - Figure 4A shows an embodiment

  tion of an induction ratio adjustment device, which

  includes two rows of nozzles for primary air flow

  mayor, which has the effect that the flow ratio is adjusted between the nozzles of the rows of nozzles using a control plate located in the supply chamber

  for the primary air flow, which plate

  mande includes respective drainage openings

  views for the different nozzles of the two rows of nozzles; - Figure 4B shows a part X1 of Figure 4A; - Figure 5 shows an embodiment of the induction ratio control device, in which the supply air chamber for the primary air flow includes, on two sides of a central vertical axis, two rows nozzles, whose nozzles have different cross-sectional flow surfaces and the air flow towards the nozzles is regulated by an internal tube having flow openings, by means of a rotation of this tube, which has so that depending on the tube rotation trough, the flow through is regulated in nozzles of different rows

  nozzles, and that in this way the speed of the flow of supply air into the mixing chamber is controlled and by

  therefore the induction ratio between the supply air flow and the circulating air flow is adjusted;

  - Figure 6A shows an embodiment

  tion of the invention, in which the circulating air flow

  the bottom is directed from the top into the mixing chamber to join the supply air flow, and the combined air flow is led to pass through the bottom flow gap of the mixing chamber to enter in the space of the room; - Figure 6B shows the device Figure 6A equipped with the induction ratio control device;

  - Figure 7A shows an embodiment

  tion, in which the flow of circulating air is directed from the side of the device to enter the chamber

  mixing so as to join the air flow

  mentation; - Figure 7B shows the device of Figure 7A equipped with the induction ratio control device;

  - Figure 8A shows a form of embodiment

  tion of the invention, in which the supply air flow is directed by the nozzles directly downwards from the supply air chamber, in the direction of the central flow opening T2 , while the circulating flow air is directed from the top into the side chamber and further from the side so as to join the supply air flow, which has the effect that the flow combined air is brought down into the device; - Figure 8B shows the device of Figure 8A equipped with the induction ratio control device; - Figure 9A shows a closed model at its upper part and on the sides and in which each side chamber B1 is limited by a partition wall

  and a side wall, and in which the air flow circulates

  the bottom is directed from the bottom so as to join the supply air flow in the central part of the device in the space between the two partition walls, and the combined air flow is directed towards the down and out of the device; - Figure 9B shows the device of Figure 9A equipped with the induction ratio control device; and - Figures 1OA-10J illustrate from which

  way the embodiments of the devices of a ter-

  minimum supply air supply indicated above are arranged in the space of a room, the figures being vertical cross sections of the room space and

  showing different configurations of the supply air jet

  tation with different positions and variants of the devices.

  Some forms of realization will be described below.

  advantageous sation of the invention. The invention includes a supply air chamber for the supply air,

  from which fresh supply air is available

  tributed by means of the nozzles in an internal mixing chamber of the device, in which the flow of circulating air is also directed from the space of the room, being induced by the flow of supply air mentioned . In the most advantageous embodiment

  of the invention, the supply air chamber includes more

  several nozzles arranged side by side and preferably mounted so as to form one or more rows of nozzles. An embodiment in which the nozzles are replaced by one or more elongated nozzle interstices is also possible in the context of

the invention.

  FIG. 1A is an axonometric view of the arrangement

  Terminal for supply air supply 10. Figure

  lA represents a model, which is closed at its upper part

  lower and on the sides and in which one or more internal mixing chambers B1 of the device are delimited by side plates lo0b and end plates lOd, and of which an end wall l0d is shown in view partially broken away in the figure lA to show the internal structures. In addition, upwards the mixing chamber (s) B1 are limited by the lower wall 111 of the supply air chamber 11. Consequently, the structure shown in FIG. 1A opens only at the bottom to open into the space H of a room, as shown in the figure. Fresh air is directed through the supply duct to be introduced into the supply chamber 11, from which

  the air continues to be directed by nozzles 12a1, 12a2 ...

  to be introduced into lateral chambers or mixing chambers B1 of the device, on both sides of the vertical central axis Y1 of the device. The figure shows nozzles 12a1, 12a2 ... of the supply air chamber 11, through which air is introduced into the side chambers B1. It is the most advantageous embodiment of the invention. In the context of the invention, it is also possible to produce an embodiment in which the different nozzles 12a1, 12a2 are replaced by a flow gap. In this application, the expression supply air which designates the air, which is directed from the supply air chamber 11 by means of the nozzles, into the mixing chamber B1 and which induces an air flow L2 from the

  piece H towards the mixing chamber B1. The DISCHARGE

  The supply air is also referred to as the primary air flow. The circulating air flow T2 induced by the supply air flow L1 is also designated as the secondary air flow. As shown in FIG. 1A, the terminal supply air supply device 10 includes between the air guiding parts 13, delimiting lateral chambers B1 in the central zone of the device and below the supply air chamber 11, a

  free flow path El for circulating air flow

  lant L2. For the flow of circulating air L2 from the room there is provided a free flow path T1 penetrating into lateral chambers B1 from the central part of the

  device. Said air flow L2, i.e. the flow

  Lement of secondary air, is driven by the primary air flow L1 from the nozzles 12al, 12a2 ... of the supply chamber 11. In the side chambers B1, the air flows L1, L2 are combined and the combined air flow L1 + L2 is arranged so as to flow in the direction of the side being guided by the air guide parts 13 located in the lower part of the frame R and by the side plates lob of the supply air supply terminal device 10. The flow L1 + L2 enters, through a gap or an opening T2, into the space of the room so that its speed does not

  essentially does not decrease. The terminal device

  provided with supply air has no heat exchanger to heat or cool the air flow

flowing L2.

  The device shown in the figure may include an arrangement such as the device 15 for controlling the induction ratio, in which an assembly 130, which includes parts 13 for guiding the air and a connection structure disposed between these parts, including flow openings 16b or such a structure for the circulating air flow L3, can be moved as a structural component towards the supply air chamber 11 and be moved away from it as shown by the arrow MI . This displacement makes it possible to adjust the induction ratio Q2 / Q1 between the flows L2 and L1. In the figure, the reference numeral 130 designates the mobile assembly. Figure 1B is a cross-sectional view taken along line I-I in Figure 1A of a first advantageous embodiment of the invention. FIG. 1B is also valid as a cross-sectional view for devices, in which the terminal device for supplying air has a square cross section or a circular cross section. The air supply terminal device 10 comprises a supply air chamber 11 for supplying fresh supply air, from which the air is directed by nozzles 12a1, 12a2 ... into the side chamber or mixing chamber B1 of the device and also in the space H of the room. In the embodiment shown in the figure, the terminal device for supplying air is a structure closed on its sides and at its upper part. With the aid of the supply air flow L1, the circulating air L2 is induced from below the device to enter the lateral chamber B1. The combined air flow L1 + L2 is caused to move away from the lateral chamber and to go to the side from the device, preferably at the level of the

  roof of the building, such as at ceiling level.

  Therefore the device can be located in such a way with respect to the level of the ceiling that the lower parts of the frame of the device are located at the level of the ceiling, towards which the combined air flow L1, L2 is directed. The terminal supply air supply device 10 includes a free flow path E1 for the flow of circulating air L2 entering the lateral air chamber B1 from the supply air chamber 11 and centrally so that the flow of circulating air L2 can be directed to both sides of the central axis Y1 of the device. The terminal supply air supply device 10 comprises in the supply air chamber a flow gap or, according to the most advantageous embodiment, several nozzles 12a1, 12a2 ... arranged side by side. side by side and from which the guided fresh supply air induces the flow of circulating air L2 so that it circulates centrally in the device following the free flow path El below the supply air chamber 11 to enter the

  side chamber B1. In side chamber B1, the

  L1 + L2 elements are combined, and the combined air flow L1 + L2 is directed to the side from the device,

ceiling level direction.

  As shown in the figure, the supply air chamber 11 closes the device 10 at its upper part. The side plates lob and the end plates l0d of the frame R of the device close the latter

  on the coast. The device has a flow path

  O1 for the combined air flow L1 + L2 between the

  air guide tie 13 and side wall lob, from

  shot from side chamber B1 and continuing towards the level of the ceiling, in the chamber space. The side plates of the frame R of the device and the parts 13 for guiding the air delimit the chambers B1 on the side of the device. An air guide portion 13 and side plates lob are shaped so that the combined air flow L1 + L2 flows in a horizontal direction to the side and preferably in

  direction of the level of the ceiling and along it.

* Preferably an openwork plate 16bl is available

  between the air guide parts 13 of the device, which has the effect that the circulating air flow L1 guided by the perforated plate is further guided in

  side chambers B1. As described above

  ment, the combined air flow L1 + L2 is guided from the device, preferably with the air from the parts 13 guided by the latter in a horizontal direction to the side. The device is symmetrical about the axis

vertical center Y1.

  In this context, we refer to the figures

  10A-10J, which represent different positions of arrangement

  terminal supply air in the space

  of the room. Therefore, even if a form of achievement

  advantageous tion of the ceiling has been indicated previously, the device can also be used in a wall position or in a position at floor level or be

  freely mounted. The same goes for other agencies-

  of devices presented in this application.

  FIGS. 1C, 1D and 1E show an embodiment which is similar to that shown in FIGS. 1A and 1B, except that the device is

  equipped with a control device 15 for adjusting the speed

  induction port between the L2 and L1 flows.

  To control the Q2 / Q1 induction ratio between

  flows L1 and L2, the embodiment represented

  shown in FIG. 1B includes, between the parts 13 of guide

  air leveling, a device 15 for controlling the induction ratio, which is used to regulate the volume of flow of circulating air L2. Therefore the report

  Q2 / Q1 is adjusted, Q2 being the volume of the

  L2 circulating air, while Q1 is the volume

  flow of the supply air flow, i.e.

  say the primary air flow L1. With devices according to the invention, the maximum induction ratio Q2 / Q1 is typically located in a range between 2 and 6. The device 15 for controlling the induction ratio of the embodiment shown in the figures 1C, 1D and 1E is formed by a structure of perforated plates. The structure includes a second perforated plate 16a2 movable relative to a first perforated plate 16a1 located in a fixed position (the arrow S1 indicates the

  linear displacement), which means that the openings

  tures a1, a2 ..., b1, b2 ... in the perforated plates 16a1, 16a2 can be arranged in overlapping positions, which has the effect that the total cross-sectional flow area passing through the structure

  surface area of the opening can be ordered, and the drain-

  air circulating L2 crossing the surface of the opening

  ture can thus be adjusted. Under certain conditions

  service the L2 drain can be completely closed.

  Figure 2 shows an alternative embodiment similar to that shown in Figure lC

  except that here each side chamber B1 includes a device

  control unit 15 for controlling the induction ratio

  between flows L1 and L2. In the form of realization

  tion shown in Figure 2, the control device

  15 is formed by an elongated register 17, which can be sup-

  pivotally carried by a hinge 18 in different control positions in the chamber B1. Under the effect of the rotation of an eccentric element 19, the

  register 17 is moved and different positions of com-

  mande are obtained for the register 17. FIG. 3A represents an embodiment of the invention, in which the control device 15

  the induction ratio used to adjust the induction ratio

  tion between the circulating air flow L2 and the primary air flow L1 is formed by an elongated plate 20, which

  is moved in a linear direction so that

  sea and open an E1 flow path for flow

  circulating air L2 entering the mixing chamber B1.

  The plate 20 of the control device 15 closes and opens a

  flow path entering the lateral chamber B1.

  The plate 20 is located on an edge of the lateral chamber B1 in the upper part of the chamber B1. Under the effect of the displacement of the plate 20 coming in different control positions, the flow L2 is throttled and simultaneously the length of the path of the flow L2 is affected and consequently the induction distance is modified, namely the distance over which the flow of supply air L1 induces the flow of circulating air L2. Figure 3B is an axonometric view of the structure shown in Figure 3A. The plate 20 can be positioned in different positions relative to the plate 13. The screw R1 is arranged in a groove ul formed in the plate 20 to be mounted on this plate, that is to say on the guide part 13 in its mounting hole. Figure 3C shows an embodiment of the invention, which is otherwise similar to the embodiment shown in Figure 3A and in Figure 3B except that the plate 20 is formed by a rotary damper 30 which rotates around a pivot point N1 located near the nozzles 12al, 12a2 on a

  lateral surface of the supply air chamber 11.

  Figure 3D shows a supply air supply terminal device according to the invention, which includes nozzles 12al, 12a2 which open from a supply air chamber, which has the effect that flow

  supply air L1 is directed by the direct nozzles

  so as to be close to the Ka ceiling in the room, in which due to the coanda effect, air circulates along the ceiling. L1 supply air flow

  induces a flow of circulating air L2 in the center inside

  of the device, and the induction ratio Q2 / Q1 between the flows L2 and L1 is adjusted by a device 15 for adjusting the induction ratio, which includes a damper 20 pivoting around a pivot point N1 in the chamber supply air 11. The structure is symmetrical by

  relative to the vertical central axis Y1.

  FIG. 4A represents an embodiment of the invention, in which the device 15 for controlling the induction ratio is mounted in connection with nozzles 12a1, 12a2 ..., 12b1, 12b2 ... so that on the supply side of the nozzles (relative to the flow L1) there is an openwork plate 24, which can be brought into different covering positions relative to the supply openings J1, J2 ..--., nI, n2 nozzles

12a1, 12a2, 12b1, 12b2.

  Figure 4B shows part X1 of the figure

  4A on a larger scale. By moving the plate

  command 24 in a linear direction as shown by an arrow S1, the position of the openings fl, f2, tl, t2 in the control plate 24 is affected with respect to feed openings 1, J2 * .., nl, n2 ... rows of nozzles 12al, 12a2 ..., 12bl, 12b2 ... When in

  in addition to the nozzles 12a1, 12a2 ..., 12bl, 12b2 ... are chosen

  sies in a desired position with respect to each other, it is possible by modifying the flow between the

  rows of nozzles to obtain the desired projection profiles

  tion and the speed of the primary air flow L1 deli-

  controlled by the primary air flow nozzles and therefore the desired induction ratio between the

  L1 and L2 flows. In the embodiment shown

  shown in FIG. 4A, the supply air chamber 11 includes two rows of nozzles arranged side by side, a row of nozzles formed by the nozzles 12a1, 12a2 ..., the flow area in cross section of the nozzles being greater than the cross-sectional flow area 12b1, 12b2 ... in the lower row of nozzles. Furthermore, the nozzles 12a1, 12a2 ... extend further inside the side chamber B1 than the lower nozzles 12b1,

  12b2 ... By moving the perforated plate 24 in one direction

  linear position as shown by the arrow S1 in FIG. 4B, the air flow through the nozzles 12a1, 12a2 ... 12b1, 12b2 ... is adjusted. Thus by moving the plate

  openwork 24 in a linear direction (arrow S1) relative to

  port at supply openings g1, g2 ..--. ni, n2, the supply air flow L1 is throttled and is

set as desired.

  FIG. 5 represents an embodiment of the terminal supply air supply device according to the invention, in which the supply air chamber 11

  is formed by a structure with a cross-section

  circular, and including on both sides of the central axis Y1 of the nozzles 12a1, 12a2 ..., 12b1, 12b2 ..., but such that, as shown in the figure, the nozzles 12b1, 12b2. .. having the smallest cross-sectional flow area are located on the left side above the row of nozzles 12a1, 12a2 ... having the largest cross-sectional flow area, and on this the order of the nozzles is opposite to that on the right side of the central axis Y1, that is to say that the row of nozzles 12b1,

  12b2 ... having the cross-sectional flow area

  the smallest side is located below the row of nozzles 12a1, 12a2 ... having the largest cross-sectional flow area. Inside the feed chamber 11 in the device 15 for adjusting the induction ratio, there is provided a rotary adjustment tube 27 comprising flow openings f1, f2 10 ... t1, t2 .. for nozzles 12a1, 12a2 ...., 12b1, 12b2 located on both sides of the central axis Y1. Thus by rotating the adjustment tube 27, it is possible to adjust the supply air so that it circulates for example as shown in the figure only through the nozzles 12a1, 12a2 ... having the surface of largest cross-section flow, or in nozzles 12b1,

  12b2 ... having the cross-sectional flow area

  smallest versal. In this way the flow speed

  L1 and the projection profile in the side chamber

  rale B1 can be adjusted and the induction ratio of said flow L1 to flow L2 can thus be adjusted. By controlling the flow L1 it is therefore possible to control the induction ratio between the flows

  L2 and L1 as desired. The inner tube

  Mention 11 having a circular cross section is arranged in the center inside the structure. In

  the embodiment shown in the figure, the

  positive includes an upper ceiling plate 10c connected

  in the side plates llb, which has the effect that the structure is formed as shown in the figure in the form of a structure open upwards

  and closed on the sides and at the bottom.

  Figure 6A shows an embodiment

  of the invention, in which the terminal terminal device

  born of supply air includes a supply air chamber

  tation 11 and, on its sides, a side plate lob, which has the effect that a flow path 40 remains for the flow of circulating air L2 between the side plate lob and the supply air chamber 11 The device is open at its upper part and at its bottom and comprises flow openings T1 and T2 formed in the upper and lower parts of the device.

  device, T1 flow openings for the flow-

  air circulating L2 and flow openings T2

  for the combined air flow L1 + L2 leaving the device

  tif. Thanks to the nozzles 12a1, 12a2 ..., 12b1, 12b2 ... located on the lateral surface of the supply air chamber 11 and located in rows over the lengthwise extent of the device in the air flow supply air, the primary air flow L1 is guided in the mixing chamber B1 below the flow path 40. Said

  primary air flow L1 induces a circulating air flow

  lant L2 coming from the opening T1 and following the flow path 40 to enter the mixing chamber B1 and the combined air flow L1 + L2 is directed laterally from the device being guided by said plate

  side lob and a part 13 for guiding the air of the

  operative part. In the context of the invention it is possible to adjust the induction ratio between the flows L2 and L1 by arranging the central part 130 for guiding

  the flow of the structure so that it is displaced

  cable with respect to the supply air chamber 11. Such an embodiment may also be possible within the framework of the invention, in which the side plates lob of the device are arranged so as to be movable relative to the chamber supply air

  11. The transfer is indicated by MI arrows.

  FIG. 6B shows an embodiment, in which the side plate lob of the device includes a rotary control register 30 as a device for controlling the induction ratio Q2 / Q1. The control register 30 is mounted so as to be able to rotate around a pivot point N1. The command can be executed either manually or using a motor using a remote operation. By modifying the position of the control register 30, the induction ratio between

the flows L2 and L1.

  Figure 7A shows an embodiment of the invention, which is particularly suitable for mounting on a wall J. As shown in the figure, the supply air chamber 11 includes in the same manner as in the form of previous embodiment, rows of nozzles 12a1, 12a2 ... and 12b1, 12b2 ..., which has the effect that the flow of supply air L1, preferably fresh supply air, is guided by nozzles of the rows of nozzles to enter the mixing chamber B1, and said primary air flow L1 is entrained along the path of air circulating from the part H, the flow of air circulating is indicated by

  arrows L2 in the figure. Said circulating air flow

  lant L2 or the secondary air flow is guided so as to join the flow L1 in the mixing chamber B1 through the elongated flow opening 31 formed in the side plate lob of the device. The device includes end plates 10d. The combined air flow L1 + L2 is discharged from the device obliquely upwards and preferably near the ceiling D in the chamber H, the combined air flow L1 + L2 rising towards the ceiling under the coanda effect and circulating in the direction of the space of the room, which is close to the ceiling D. FIG. 7B represents an embodiment otherwise similar to that represented in FIG. 7A, except that in this embodiment, the control register 30 operating as a device 15 for adjusting the induction ratio is mounted near the

  rows of nozzles and in turn rotates around the strong point

  mant pivot N1. Consequently by rotating the control register 30, it is possible to control the induction ratio Q2 / Q1, that is to say the ratio with which the flow L1 performs an induction or a draw along the flow of air circulating L2 from the space H of the room. The pivot N1 is mounted in the lateral surface of the supply air chamber 11. The register 30 can pivot either manually or by means of a remote control using a motor, preferably by an electric motor. Figure 8A shows an embodiment

  of the invention, in which the terminal terminal device

  born of supply air includes a supply air chamber

  side 11 and this on both sides of the central axis Y1, side plates lob, which has the effect that between each side plate lob and the supply air chamber 11 there remains a flow path 40 for the air flow circulating L2 from the room space or through this device. Therefore, as shown in the figure, the device is open both at its upper part

  and at its bottom and includes hatch openings

  T1 for the air flow circulating L2 in the par-

  upper part of the device as shown in the figure, and the central flow opening T2 in the lower part of the device for the combined air flow formed from the supply air flow and the flow of circulating air L1 + L2. The nozzles 12a1, 12a2 30 ..., 12b1, 12b2 ..., which are located in the two rows of nozzles, directly deliver the air flow L1 downwards as shown in the figures. Using the supply air flow L1, a circulating air flow L2 is induced from the space H of the room. The combined air flow L1 + L2 descends from the

  device according to the embodiment shown

shown in the figure.

  Such an embodiment of the device 15 for adjusting the induction ratio is possible within the scope of the invention, side blocks 10b being mounted so as to be movable relative to the supply air chamber 11 as is represented by

arrows M1 in the figure.

  Figure 8B shows a control register

  30 as a device 15 for adjusting the induction ratio

  tion, which register is mounted so as to rotate around the pivot point N1, which has the effect that the point

  forming pivot N1 is located in the supply air chamber

  tation 11 on the lateral surface of this chamber. In fact-

  By turning the damper manually or with the help of a motor, the induction ratio between the L1 and L2 flows can be adjusted. FIG. 8B also shows such an embodiment with lines formed by dashes, and instead of a rotary register 30, the register can be moved in a linear direction on the wall

  side of the supply air chamber either manual-

  either with the help of a motor to adjust the speed

  induction port between the L2 and L1 flows.

  Figure 9A shows an embodiment of the invention, in which, as shown

  in the figure, the terminal air supply device

  mentation 10 includes a structure open both to its

  top and sides. The inner tube

  description 11 includes nozzles 12a1, 12a2 ...; 12b1, 12b2 30 ... which are located in two rows and, as shown in the figure, direct the flow of supply air L1 downwards from the device. As shown in the figure, the device includes an opening

  lower supply T1 for circulating air flow

  lant L2 and a lower discharge opening T2 for

  the combined air flow L1 + L2. Therefore, the flow-

  supply air L1 directed from the nozzles induces a flow of circulating air L2 penetrating first of all into the side chamber B1 between a separation plate 33 and a side plate lo0b and also in the path of free flow E1 between the separation plate 33 and the supply air chamber 11 to join the supply air flow L1. Thus the circulating air flow L2 pivots in a direction close to 180 after joining the supply air flow L1. The combined air flow L1 + L2 circulates between the partition plates 33 in the center of the device

and down.

  Such an embodiment is possible within the framework of the invention, in which the device 15 for controlling the induction ratio is formed by movable separation plates 33, which are mounted so as to be movable towards the air chamber. 11 and from the latter. The arrows M1 represent

  said transfer and the adjustment of the induction ratio.

  As shown in Figure 9B, a

  control register 30 is located between the separating plate

  ration 33 and the supply air chamber as a control device 15 used to adjust the induction ratio between the flows L2 and L1, the damper 30 being mounted so as to be able to pivot around a point

  forming pivot L1 from the supply air chamber

  tion 11 in a manner controlled manually or by a remote control using a motor, for example an electric motor. By rotating the register 30, it is possible to adjust the induction ratio Q2 / Q1 between the flows L2 and L1. With the device according to the invention, an induction ratio Q2 / Q1 is obtained which is typically located

  in a range between 2 and 6.

  Figures 10A-10J show some posi-

  advantageous tions of devices according to the invention. The devices according to the invention can be located in the ceiling of the room or at a distance such that they are close to the ceiling Ka of the room, or devices 10 can be placed on a wall or in the floor La. Like this is shown in Figure 10A, the supply air supply terminal device 10 is mounted in the ceiling Ka of the room and is arranged to direct the flow of supply air L1 + L2 two sides of the central axis of the device near the ceiling. The devices represented in the forms of

  FIG. 1A and FIG. 6A are shown

  especially requested for the device shown in Figure A.

  Figure 0lB shows an embodiment

  tion, in which flow jets L1 + L2 are directed

  on both sides of the axis A of the device obliquely down in the space of the room. For example,

  devices shown in FIGS. 1A and 9A are suitable

  nent for the embodiment corresponding to Figure 0lB.

  Figure 10C shows an embodiment

  tion, which projects the blowing air jet L1 + L2 onto a

  side of the device only and near the ceiling.

  For example, the devices shown in FIG. 1A and in FIG. 7A are suitable for the embodiment

corresponding to FIG. 10C.

  FIG. 10D represents an embodiment of the invention, which projects by blowing the air jet

  supply L1 + L2 directly downwards, and the

  sitive is mounted at a certain distance from the ceiling. The solutions of the ceiling devices in FIG. 8A and the

  FIG. 9A are suitable for the embodiment shown

felt in the figure.

  Figure 10E shows an embodiment

  tion, in which the supply air jet is directed on both sides and in which the devices are located at a certain distance from the ceiling. The devices according to FIG. 1A and FIG. 6A are suitable for the embodiment shown in this figure. FIG. 10F shows an embodiment of a floor, in which the device is located below the floor and is arranged so as to blow the jets of supply air in two directions opposite to the

  level of the floor surface. The corresponding devices

  according to figures lA, 6A and 7A are suitable for the shape

  shown in this figure.

  Figure 10G shows an embodiment

  tion, which projects the jet of supply air from the floor directly upwards. The devices according to FIGS. 8A and 9A are particularly suitable for

  the solution according to the invention of this figure.

  Figure 10H shows the device in a wall mounting position, and the device projects the supply air jet directly in the direction perpendicular to the wall. The devices shown in Figures 7A, 8A and 9A are particularly suitable for

  the embodiment of this figure.

  Figure 0lI shows a wall embodiment, in which the device performs a blowing

  obliquely near the ceiling. The devices shown

  shown in Figures 7A, 8A and 9A are particularly suitable for the air supply shown in this figure. FIG. 10J shows an embodiment of the invention, in which the air is directed from the terminal device for supplying supply air in a direction parallel to the surface of the wall, and the device is located at a lower part of the wall. The device according to FIG. 7A is particularly suitable for producing an air supply illustrated in FIG. J. It is obvious that in the positions mentioned above, a device can be used, which includes a device for controlling the induction ratio, in the

  previously mentioned positions.

Claims (24)

  1. Terminal supply air supply device   tion (10), characterized in that (a) the terminal supply air supply device includes an air chamber (11) and several nozzles (12a1, 12a2 ...; 12b1, 12b2 ...) starting from this chamber or a nozzle gap, allowing the introduction of a supply air flow (L1) into a mixing chamber (B1) inside the device, and   (b) that the terminal supply air supply device   tion includes a flow opening (T1) located on one side of the device, through which a circulating air flow (L2) is discharged from a room, which has the effect that said circulating air flow is   guided so as to join the air flow   mentation (L1) by being induced by the flow of supply air (L1), and that the air flows combine in the mixing chamber (B1) inside the device and that the flow d Combined air (L1 + L2) constituted by the supply air flow (L1) and the circulating air flow (L2) is brought out of the device.   2. Terminal supply air supply device   tion according to claim 1, characterized in that the   mixing chamber (B1) opens through a circulation gap   culation (T2) in the space (H) of the room.   3. Terminal supply air supply device   tion according to either of claims 1 and 2,   characterized in that the device comprises a supply air chamber (11), and a side plate (10b) located at a distance from this chamber, and that the device   is open at its upper part and at its lower part so that it includes circulation openings (T1, T2) in the upper and lower parts of the device.   positive, which results in the mixing chamber (B1)   is open at its upper part and at its lower part   and that the supply air chamber (11) includes a nozzle gap or nozzles (12a1, 12a2 ...; 12b1, 12b2 ...) located on a lateral surface and through which the flow of supply air (L1) is directed into the mixing chamber (B1), which has the effect   that the flow of supply air (L2) induces a flow   lement of air flowing through circulation openings (T1) to enter the mixing chamber (B1), and that the combined air flow (L1 + L2) formed of the supply air flow ( L1) and the circulating air flow (L2) is evacuated from the device by the opening   (T2) to enter the mixing chamber (B1).   4. Terminal supply air supply device   tion according to the preceding claim, characterized in that the side plate (lob) comprises an associated rotary control register (30) arranged so as to pivot around a pivot (N1) so as to adjust the induction ratio between flows (L! and L2).   5. Terminal supply air supply device   tion according to any one of claims 1 to 3,   characterized in that the device (15) for adjusting the speed   induction port is formed by a device in which   a side plate (lob) is movable (arrow M1) relative to   port to the supply air chamber (11).   6. Terminal supply air supply device   tion according to claim 1, characterized in that the device comprises a mixing chamber (B1) situated between the supply air chamber (11) and the plate   lateral (lob) and in which the air flow   mentation (L1) is directed, and that said supply air flow (L1) extends along a circulating air flow (L2) from the room to join the latter in the mixture (B1) passing through a flow opening (31) formed in the side plate (lob), and the combined air flow (L1 + L2) is discharged from the device obliquely upward, preferably at near the ceiling.   7. Terminal supply air supply device   tion according to claim 6, characterized in that there is provided a control register (30), which can be pivoted into different control positions and that the control register (30) is associated with the air chamber d 'supply (11) near the nozzles (12a1, 12a2 ...; 12b1, 12b2 ...), which causes the register to function as a control device for adjusting   the induction ratio between the flows (L1, L2).   8. Terminal supply air supply device   tion according to claim 1, characterized in that the   supply air chamber (11) includes side plates   lales (lob) located on both sides, which has the effect that a flow path (40) remains present between the supply air chamber (11) and the side plate (lob) and that the side chamber ( B1) has, in its upper part, a flow opening (T1) for the circulating air flow (L2) and that the supply air flow (L2) is guided from the air chamber d '' supply (11) by nozzles (12a1, 12a2 ...; 12b1,   12b2 ...) down towards the lower opening   flow (T2), which has the effect that the flow-   supply air (L1) causes the circulating air flow (L2) to flow so as to join it and the combined air flow (L1i + L2) is caused to pass through   the flow opening (T2) and exit the device.   9. Terminal supply air supply device   tion according to claim 7, characterized in that the equipment used as an induction ratio control device includes a second register (30), which is   mounted on a side surface of the air chamber   mentation (11), which makes it possible to control the induction ratio between the flows (L2 and L1), by means of the rotation of the register (30).   10. Terminal air supply device   tation according to claim 1, characterized in that the terminal supply air supply device includes a supply air chamber (11) and that the terminal supply air supply device is a structure open at its upper part and closed on the sides and includes two partition walls (33), which has the effect that each side chamber (B1) of the device is limited by a side plate (10lb) of the device and by a partition wall (33), and between the partition walls (33) there is a discharge opening (T2), from which the combined air flow (L1,   L2) formed by the supply air flow and the flow   ment of circulating air leaves the device, that the supply air chamber (11) includes nozzles, which are directed from the zone between the central partition walls (33) of the device in the direction of the discharge opening   (T2), which results in the supply air flow   tation (L1) is directed downwards, which flow of supply air (L1) causes the flow of circulating air (L2) to join it first in the side chamber (B1) and further to exit the side chamber (B1) towards the center of the device, and the combined air flow (L1i + L2) is evacuated from the device between the partition walls (33), through the discharge opening (T2 ).   11. Terminal air supply device   tation according to claim 10, characterized in that the device (15) for controlling the induction ratio is a control register (30) which is arranged so as to pivot around a pivot (N1) associated with the chamber supply air (11) and that the control damper (30) is   used to adjust the induction ratio between the flow   circulating air (L2) and the supply air flow tion (L1).   12. Terminal air supply device   tation according to claim 10, characterized in that the device (15) for controlling the induction ratio is a device in which the partition walls (33) are arranged so as to be brought towards the supply air chamber ( 11) and to be discarded, to settle   the induction ratio between the flows (L2 and L1).   13. Terminal air supply device   tation according to claim 1, characterized in that the   supply air terminal device (10) including   takes a supply air chamber and, a nozzle gap or several nozzles (12a1, 12a2) extending from this chamber for the supply air flow (L1) and opening into the side chamber ( B1), and that the terminal supply air supply device is a structure closed on the sides and at its upper part and comprising side plates (lob) and air guiding parts (13), which has the effect that in the device there is between the air guiding parts (13) located on both sides of the central axis (Y1) of the device, a free flow path (E1) below of the supply air chamber (11) for the flow of circulating air (L1) arriving from the part (H) to enter the lateral chamber (B1), which has the effect that in the device the chamber supply air (11) includes a nozzle gap or nozzle gaps (12al, 12a2 ...; 12b1, 12b2 ...) for directing the flow or supply air (L1) in the side chamber (B1) and induce the flow of circulating air (L1) using said air flow (L1) from space (H) room for   send it to the side chamber (B1).   14. Terminal air supply device   tation according to claim 13, characterized in that it includes a control device (15) for the induction ratio between the circulating air flow (L2) and the supply air flow (L1) , which control device is used to adjust the ratio, in which the supply air (L1) and the circulating air (L2) are   present in the combined air flow (L1, L2).   15. Terminal air supply device   tation according to claim 13, characterized in that the device (15) for controlling the induction ratio is   mounted between the air guide parts (13).   16. Terminal air supply device   tation according to claim 15, characterized in that the device (15) for controlling the induction ratio includes a perforated plate (16a1) located in a fixed position and another movable perforated plate (16a2), which has the effect that under the effect of the displacement of the movable open plate (16a2) it is possible to adjust the position of the openings (a1, a2 ...) of the movable open plate relative to the openings (b1, b2 ...) of the perforated plate (16a1) located in a fixed position, and it is also possible to adjust the total flow area in cross section for the flow of circulating air (L2) through the perforated plates (16a1, 16a2).   17. Terminal air supply device   tation according to claim 14, characterized in that the lateral chamber (B1) includes a device (15) for controlling the induction ratio, which is formed by a rotary control register (17), which can be brought to release and block the flow (L1, L2) in the side chamber (B1).   18. Terminal air supply device   tation according to claim 14, characterized in that the device (15) for controlling the induction ratio is mounted in the upper part of the lateral chamber (B1)   at one of its edges so as to release and block   quer a circulation path (14) entering the side chamber (B).   19. Terminal air supply device   tation according to claim 18, characterized in that the device (15) for controlling the induction ratio is a rectilinear plate (20) which is moved in a linear direction (arrow S1) either manually or by means of   the use of an electric motor.   20. Terminal air supply device   tation according to claim 18, characterized in that the   control device (15) is a rotary damper (30).   21. Terminal air supply device   tation according to claim 14, characterized in that the device (15) for controlling the induction ratio is   formed by a control plate (24) comprising openings   flow tures (fl, f2 ..-, tl, t2 ...) blocking and releasing a flow path in the direction of nozzles (12a1, 12a2 ...; 12b1, 12b2 ...), which are arranged in   two separate rows and have drainage surfaces   ment in cross section different from each other, which has the effect that the device (15) for controlling the   induction ratio can be used to adjust the flow   through the nozzles (12a1, 12a2 ...) having the largest cross-sectional flow area, or through the nozzles (12b1, 12b2 ...) having the largest cross-sectional flow area small, and thus adjust the speed of the primary air flow (L1) and the projection diagram inside the side chamber (B1), and therefore also the induction effect of said air flow primary (L1) on   the secondary air flow (L2).   22. Terminal air supply device   tation according to claim 14, characterized in that the   supply air terminal device (10) including   takes side plates (lob) and a cover plate   ture (10c) and comprises, below the latter, a supply air chamber (26) having a circular cross section, and that there is provided inside this chamber, a rotary control tube ( 27) and, in the latter, flow openings (flf2 ...; t1, t2 ...) on both sides of the central vertical axis (Y1), which has the effect that by rotating the rotary control tube (27), its position relative to the nozzles (12a1, 12a2 ...; 12b1, 12b2 ...) arranged in two separate rows, the nozzles (12a1, 12a2 ...) can be controlled flow area in cross section different from that of the nozzles (12b1, 12b2 ...) located in the other row, which has the effect that by using the   control it is possible to control the penetration   trant in the nozzles (12a1, 12a2 ...; 12b1, 12b2 ...) separate rows of nozzles and control the speed of the supply air flow (L1) entering the side chamber (B1) , and also the effect of induction of the supply air flow (L1) on the circulating air flow (L2), which arrives by following the path   flow (E1) to join the primary air flow mayor (Ll).   23. Terminal air supply device   tation according to claim 14, characterized in that the control damper (30) is joined to the supply air chamber by means of a pivot point   (L1), the control register being able to be brought by pivo-   in different control positions so that   adjust the induction ratio between the circulating air flow   bottom (L2) and the supply air flow (L1).   24. Terminal supply air supply device   tion according to claim 14, characterized in that the device (15) for controlling the induction ratio is formed by a structural entity (103) which is movable towards the terminal air supply device and can be moved away from it last and which includes parts (13) for guiding the air and a structure connecting these parts,   which has the effect that the circulating air flow moves between the parts (13) for guiding the air in order to join the primary air flow (L1).