The invention relates to an air intake ventilator used as a part of a ventilation system in housing, public buildings and commercial constructions.

The intake ventilator known from the Polish patent No P.220016 has a sleeve of the passage channel fitted with vertical ribs. One side of the sleeve is connected to an air-inlet pocket body consisting of an air-inlet pocket chamber, the walls of which have ribs inside, and of a non-ribbed channel of an air-inlet pocket. The air-inlet pocket chamber is connected to the air-inlet pocket channel, and the shorter walls of the chamber form side closures of the air-inlet pocket chamber. On the inner surfaces of the side closures the racks of the toothed catches are located, while on the other side the sleeve is connected to an air-outlet pocket body. The construction of the air-outlet pocket body is the same as the body of the air-inlet pocket. The air-outlet pocket body is composed of air-outlet pocket chamber connected to a non-ribbed outlet channel of the air-outlet pocket. The walls of the air- outlet pocket chamber have on their inner sides air-outlet pocket ribs. The shorter of the air-outlet pocket chamber form side closures of the air-outlet pocket chambers and on the inner surface of their side closures are racks of the toothed catches. Inside inlet pocket chamber there is a grid mesh in the form of straight-diagonal grid frame, which in its lower part transforms into a mask of the frame of the grid. The longer walls of the grid frame are interconnected by transverse ribs of the frame mesh, and the shorter walls of the frame form side closures of the frame grid and said side closures are equipped with elastic tongues of the toothed catches. The longer walls of the grid frame have lateral recesses on their outer sides. In the air-outlet pocket chamber a flow regulator in the form of a rectangular bed is arranged. The bed has the same shape as the grid frame. The flow regulator transforms in its lower part into a masking rrame. i lungei interconnected by transverse ribs of the bed. The bed and the mask connected to it have a window in which a thermostatic throttle is disposed. The shorter walls of the bed form side closures of the flow regulator. The side closures are equipped with elastic tongues of the toothed catches with a projection and a slot. The longer wall of the bed has lateral cuts on its outer side. In the window, between the side closure and a partition, a thermostatic throttle is pivoted rotationally, and above it, below the ribs a pressure throttle is suspended rotationally. The partition has an opening, through which a cylindrical spigot of the thermostatic throttle passes into the chamber of the thermostat. In the surface of the spigot there is a hole, in which a curved end of the profiled spring is arranged and the second end of the spring is mounted rotationally in a hole in the side closure. The spring has a bulge which abuts a temperature sensor. The sleeve of the flow channel and the air-intake pocket connected to the channel and the air-outlet pocket enclose the window frame from the outer side forming a kind of overlay.

The intake ventilator known from the Polish patent application No. P. 407593, has a flow channel, an air-intake box and an air-outlet pocket mounted above a window frame, and the air-intake box, which is located on one side of the channel has a stub-pipe and a partition with an opening, and the partition has a flange and side closures provided with guides and guide channels and it has outer walls of the guides. On the other side of the channel there is the air-outlet box which also has a stub-pipe and a partition with an opening. The partition is provided with a flange and it has its side closures provided with guides and guide channels, and it also has outer walls of said guides. Inside the guide channels there are strips. The outer walls have vertical ribs of a coupling mechanism, and between the ribs there are fixing plates provided with cotter pins. Inside the air-intake box an air-intake pocket is situated. The pocket has a form of a frame which transforms its shape into a mask and a grid. The mask has a leap, to which a filter housing is adjacent. Inside the air-outlet box there is a flow regulator provided with a cover, a frame and a mask. The cover has a horizontal wall provided with a recess, a vertical wall and closing walls. The cover has also two peripheral ribs and a middle rib and it comprises two upper boxes. In the spaces between the peripheral ribs and the middle rib there are fittings of thermal and acoustic insulation. The frame includes an inlet stringer and an outlet stringer which are connected to each other with the peripheral and the middle rib. Said frame includes also two lower boxes. The mask is provided with a front plate, on the upper surface of which there are two peripheral ribs and one middle rib. In the space between the peripheral ribs and the middle rib there are fittings for acoustic insulation. The inner surfaces of the fittings form a channel of the flow regulator, in which a throttle is located. The known ventilator has a thermal drive assembly. The flow channel, the air-intake box and an elastic pad enclose a window frame on its outer side, forming a kind of overlay situated on the window frame. The lower edge of the air-intake box is included in the top surface of the outer cavity of the window, while the bottom edge of the air-outlet box is included in the top surface of the inner cavity of the window.

A disadvantage of known and described intake ventilators is a high degree of complexity of their design and the necessity for additional insulation of an air-flow channel if the ventilator is used in a building having concrete construction of lintels of window openings, or under cold climate, which results in a significant increase in size and weight of the ventilator.

Technical problem to be solved is to develop a new design of an intake ventilator integrated in the window, which does not interfere in the constructions of windows and does not have a negative impact on the technical parameters of windows. The new intake ventilator should have a significantly simplified design, smaller dimensions and better thermal insulation from the side of the lintel of the window opening. It should be a modular construction that allows for easy replacement of components, which creates opportunities for further development. The new design of the intake ventilator should be distinguished by a special technical and functional suitability, which provides proper ventilation and, at the same time, reduces the consumption of thermal energy required for heating the ventilation air during the heating season.

The nature of the invention is characterized in that the intake ventilator according to the invention has a thick-walled shell made of a resilient material having good heat insulation. At the bottom of the thick-walled shell there is a concavity composed of an air- intake cavity, an air-outlet cavity and a flow channel recess, which is provided with a rib. The upper part of the thick-walled shell forms a plate provided with openings in which profiled ribs are disposed. The thick-walled shell has also two side walls, a closure of the air intake and a closure of the air outlet, and those elements surround the concavity on four sides. The flow channel recess is closed from below with the horizontal partition having a slanting fault, and said horizontal partition through seals adheres to an upper surface of a window rail. On the upper surface of the horizontal partition, from the side of the air-intake cavity a pressure throttle is located, while inside the air-intake cavity a thermal air-flow controller is positioned. The thermal air-flow controller consists of two profiled guides connected by means of yokes, each of the guides has a longitudinal groove and two 3 longitudinal slots. In the grooves two movable lamellar throttles are located. The throttles have openings and binders. In the slots of the guides two pairs of bars are placed. The yokes have arms with openings and they are assembled by means of screws to the brackets equipped with mounting sleeves. Moreover, the air-intake cavity is covered from the bottom with a flap provided with two guides, in which the side closures of the flap are located and said closures are provided with ribs having axles of rotation. Furthermore, the air-outlet cavity is covered from the bottom with a masking frame provided with two guides, in which there are catches of the side closures of said mask frame and said closures have ribs with transverse openings in which the axles of rotation of the throttle are mounted. The closure of the air intake from the side of the air-intake cavity has a transverse step, while the closure of the air outlet in its cross-sectional shape is similar to right triangle, and on its hypotenuse wall from the side of the air-outlet cavity there is a transverse nest wherein a throttle is located. The slanting fault of the horizontal partition is deflected from the plane of the partition by an angle a within the range from 20° to 30°. The recess of the flow channel, which is closed with the horizontal partition having the slanting fault, creates a passage which connects the air-inlet cavity with the air-outlet cavity. The pressure throttle has the shape of a flat spread rectangle provided with protrusions disposed along opposite longer sides of the rectangle. One part of the protrusions is attached to the horizontal partition having the edge which is the rotation axle of the throttle. Between the edge, the longer side of the rectangle, and the edges of said protrusions rectangular openings are formed. During the rotation of the throttle the edges of the protrusions abut against the profiled ribs. The throttle is preferably made of a flexible material. The bars of each pair at one end are constrained in the yokes and their free ends are connected by connectors equipped with compensator of elongations to the lamellar throttles. Both lamellar throttles have relative movement Hmiters. The bars are made of a material having a high coefficient of thermal expansion. The lamellar throttles have an identical spacing of the openings, furthermore, the binders are wider than the openings. The thermal air-flow controller abuts with the flat surface of its profiled guide on the window rail and the edges of the guides of the flow abut respectively on the horizontal partition and on the horizontal surface of the transverse step. The embodiment of the flap is provided with a silencer and the flap is pivotally suspended. The axles of rotation are mounted in the openings on the arms of the yokes. Inside the guides of the flap there are brackets for a filter. The flap has a magnetic lock consisting of magnets. The brackets having the mounting sleeves are secured directly to the window rail with screws. Inside the guide of the masking frame there is a silencer which abuts on the slanting fault and on the vertical surface of the window rail. The closures of the masking frame are bolted directly to the window rail with screws.

. The intake ventilation according to the invention has surprisingly specific technical advantages, because it enables easy and simple installation of the ventilator just above the window, and in the same time it does not interfere in the structure of the window and thus does not require slits in the window frame profile and does not reduce the technical parameters of the window. The intake ventilator according to the invention has very good thermal insulation from a lintel of the window opening, and thanks to the elastic thick-walled shell it has a small height above the window frame. The invention can be applied to windows of different designs and of different widths of structural profiles. Moreover, the intake ventilator according to the invention has high mechanical strength and high rigidity. Therefore the intake ventilator according to the invention can be installed in the gap between the hole in the wall and the window frame. Another advantage of the invention is its ease of installation on the window frame, a good air-tight of the connection of the window frame and a lintel, and immunity to thermal expansion of the window frame. An additional advantage of the invention is to allow for use of a system of automatic control of two parameters, ambient air temperature and pressure difference, which provides higher comfort and higher energy efficiency. The use of flexible pressure throttle eliminated, first of all, internal noises of the working intake ventilator. The system adding the deformations of bars of the thermostatic sensors significantly increases the sensitivity of the thermal air-flow controller. Furthermore, the solution according to the invention has a modular construction that creates opportunities for f rther development and allows for easy replacement of elements determining such technical parameters as the efficiency and acoustic insulation, as well as creates the possibility of using another automatic control, including electric.

The intake ventilator according to the invention is illustrated in the accompanying drawings, in which:

Figure 1 shows the complete ventilator mounted on a window rail in axonometric view from above,

Figure 2 shows the thick-walled shell of the ventilator in an axonometric view from below, Figure 3 shows the ventilator with dismantled the thick- walled shell in a distributed axonometric view from above, Figure 4 shows a distributed axonometric view of the ventilator from below,

Figure 5 shows the ventilator with the disassembled the thick-walled shell, mounted on a window rail in axonometric view from the top side of the air intake,

Figure 6 shows the ventilator with dismantled the thick-walled shell, mounted on a window rail in axonometric view from the top side of the air outlet,

Figure 7 shows an axonometric view of the ventilator mounted on the window rail in cross section taken along the line A- A of Figure 1,

Figure 8 shows the ventilator mounted on a window rail in cross-section taken along the line A-A of Figure 1,

Figure 9 shows the thermal air flow controller in distributed axonometric view from above, Figure 10 shows the thermal air flow controller together with brackets in axonometric view from above,

Figure 11 shows the thermal air flow controller with dismantled guides in axonometric view from above,

Figure 12 shows cross-section of the embodiment of the ventilator taken along the line A-A of Figure 1

Figure 13 shows the pressure throttle in general view from above.

The intake ventilator according to the invention has a thick-walled shell 1 made of a resilient material having good thermal insulation properties, arranged at the bottom in the form of a concavity 2, which consists of an air-intake cavity 3, an air-outlet cavity 4 and a recess 5 of a flow channel and said recess has a rib 6. The upper part of the thick-walled shell 1 forms a plate 7 provided with openings 8, in which profiled ribs 8' are situated and furthermore, it has two side walls 9, a closure 10 of the air-intake and a closure 11 of the air-outlet. Said four elements form the four sides of the concavity 2. The closure 10 from the side of the air-intake cavity 3 has a transverse step 12. The shape of the closure 11 in its longitudinal section is similar to a right triangle, wherein on its hypotenuse wall from the side of air-outlet cavity 4 there is a transverse nest 13 in which a throttle 14 is situated. The flow channel recess 5 is closed from the bottom by a horizontal partition 15 having a slanting fault 16, deviating from the plane of the horizontal partition 15 at an angle a, and forms thus a passage 17 connecting the air-intake cavity 3 with the air-outlet cavity 4. The horizontal partition 15 through seals 18 abuts on the upper surface of a window rail 19. On the upper surface of the partition 15 from the side of the air-intake cavity 3 there is a pressure throttle 20 having a shape of a flat spread rectangle 21 equipped with protrusions 22 and 23 distributed along opposite long sides of the rectangle 21. The protrusions 22 are attached to the horizontal partition 15 with an edge 22', which is an axle of rotation of the throttle. Between the edge 22', the longer side of the rectangle 21 and the edges of the protrusions 22 there are rectangular openings 22". Inside the air-intake cavity 3 a thermal air-flow controller 24 is positioned and said air-flow controller consists of two profiled guides 25 and 26, each of which has a longitudinal groove 27 and longitudinal slots 28. The guides are connected together by means of yokes 29 and 30. In the grooves 27 there are movable iamellar throttles 31 and 32 having openings 33, moreover, between said openings there are binders 34. In the longitudinal slots 28 of the guides 25 and 26 two pairs of bars 35 and 36 are located respectively. The bars are made of a material of high thermal expansion. The bars of the pair 35 are clamped at one end in the yoke 29 and their free ends are connected to the lamellar throttle 31 by means of a connector 37 provided with an elongation compensator 38. On the other hand, the bars of the pair 36 are clamped at one end in the yoke 30, and their free ends are connected to the lamellar throttle 32 by means of a connector 39 provided with an elongation compensator 40. The lamellar throttles have a limiter of relative movement 41 in the form of suitably selected lengths of the throttles 31 and 32 and the guides 25 and 26. The yokes 29 and 30 have arms 42 and 43 respectively, with openings 44. The yokes are bonded by means of screws 45 to the guides 25 and 26 and to brackets 46 and 47 respectively. The brackets are equipped with their mounting sleeves 46' and 47', respectively. Said brackets 46 and 47 having the mounting sleeves 46' and 47' are secured directly to the window rail 19 using screws 45*. The thermal air-flow controller abuts with the flat surface of its guide 25 on the window rail, while the edges of the guides 25 and 26 abut on the horizontal partition 15 and on the horizontal surface of the transverse step 12, respectively. The air-intake cavity 3 is covered from the bottom with a flap 48 provided with two guides 49. Inside said guides there are side closures of flaps 50 and 51 having ribs 52 and 53 with their axles of rotation 54. The flap 48 is rotary pivoted. The axles of rotation 54 are mounted in the openings 44 of the arms 42 and 43. The flap 48 has a magnetic lock consisting of magnets 55. In the guides 49 there are also brackets 56 for a filter 57. The flap 48 restricts an inlet port 58. In the embodiment a flap 48' is provided with a silencer 59. The part of the thick-walled shell 1 which surrounds the air-intake cavity 3 together with the flap 48 and its side closures 50 and 51 form the air intake of the ventilator. The air-outlet cavity 4 is covered from the bottom with a masking frame 60 suspended on the side closures 61 and 62 which are fastened with screws 63 directly to the window rail 19. The masking frame 60 has the form of a spread profile equipped with guides 64, and the side closures 61 and 62 have catches 65 embedded in the guide 64 of the masking frame 60. Furthermore, the side closures 61 and 62 have ribs 66 and 67, respectively. Said ribs have transverse openings &s, m wmcn there are axles of rotation 69 and 70 of the throttle 14 based in the transverse nest 13. The axle of rotation 69 is provided with a lever 71 for manual control of the air flow. In addition, the side closures 61 and 62 are equipped with sleeves 72 having openings 73 in which screws 63 are mounted. The masking frame 60 has a silencer 74 which also acts as a sealing and as a thermal insulation, moreover, it has an additional thermal insulation 75. The part of the thick-walled shell 1 which surrounds the air-outlet cavity 4 together with the throttle 14, masking frame 60 and the side closures 61 and 62 form the air outlet of the ventilator.