JP2007298418A - Cross wind blower - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cross wind blower capable of restraining a velocity of testing wind from being deviated over a parallel direction. <P>SOLUTION: The cross wind blower has a partitioning part 50 for partitioning two diffusing ports 36 arrayed parallel-directionally. The partitioning part 50 is formed of a first recess 51 and a second recess 52 to provide a zig-zagged corrugated shape of cross-sectional shape. A boundary position between the adjacent two diffusing ports 36 is shifted along a parallel direction Z, by the two recesses 51, 52, a flow velocity is restrained from getting low, as to blown gas diffused from the vicinity of the partitioning part. The blown gases diffused respectively from two adjacent duct bodies are easy to be mixed so as to restrain the velocity of the testing wind from being deviated over the parallel direction X. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cross wind blower for performing a cross wind stability test of a vehicle.

  FIG. 26 is a cross-sectional view showing a part of the crosswind fan 1 of the prior art. The crosswind air blower 1 is a device for performing a stability test by crosswind on the traveling vehicle 3. The cross-wind blower 1 has a plurality of blowers 2. The air blowing means 2 are arranged along the predetermined parallel direction X and are adjacent to the test paths 4 extending in the parallel direction X, respectively. The blown gas blown by each blower 2 travels in the horizontal orthogonal direction Y perpendicular to the test path 4. A test wind simulating a cross wind traveling in the orthogonal direction Y can be created by the blown gas blown by each blowing means 2. A cross wind blowing stability test method is disclosed in Non-Patent Document 1, for example.

  Each blowing means 2 is disposed in a cylindrical cylindrical portion 5. The cylindrical part 5 is connected to a rectangular cylindrical part 6 having a rectangular cylindrical shape. The rectangular cylindrical portion 6 has a larger diameter in the parallel direction than the cylindrical portion 5. The rectangular cylindrical portions 6 provided for each blowing means 2 are arranged adjacent to each other in the parallel direction X. By providing the rectangular tube portion 6, the blown gas blown from the blowing means 2 is spread in the parallel direction X.

  For example, six rectangular cylinders 6 having a parallel direction X dimension of about 3 m are arranged adjacent to each other in the parallel direction X, so that the air blowing region 9 having a parallel direction X dimension of 18 m can be formed in the test path 4. In the entire blowing area 9, the test wind advances in the orthogonal direction Y over the parallel direction X. By running the vehicle 3 in the parallel direction X and passing the air blowing area 9 formed on the test path 4, the stability of the vehicle 3 due to cross wind can be tested.

  In addition, examples of fluid experimental devices for blowing gas to a test body include a rotary wind tunnel, a suction wind tunnel, and a blow-out wind tunnel. The prior art regarding a rotary wind tunnel is disclosed by patent document 1, for example. Further, for example, Patent Document 2 discloses a conventional technique related to a blow-out type wind tunnel. Such a conventional wind tunnel device has a small area in which gas can be sprayed and cannot be used for the cross wind stability test. The cross-wind blower of the prior art has a completely different configuration from the wind tunnel device, and is realized by a plurality of blowers arranged in the parallel direction in order to enlarge the region in which the gas can be blown in the parallel direction.

Automotive Standard (JASO Z108, 2004 minor revision) Automotive-Crosswind stability test method Japanese Patent Laid-Open No. 7-83789 JP 2003-65890 A

  Since the cross-wind blower of the prior art has a configuration in which a plurality of blowers are simply arranged in the parallel direction X, there is a bias in the speed of the test wind in the parallel direction X. Specifically, among the test winds, the flow rate 7b of the blown gas blown through the vicinity of the wall surface of the rectangular tube part 6 passes through the vicinity of the central axis L2 of the rectangular tube part 6 and is blown out. The velocity is lower than the flow rate 7a (7b <7a).

  On the other hand, the crosswind that is blown to the vehicle that is actually traveling often has a uniform velocity distribution in the parallel direction X that is the vehicle traveling direction. Therefore, in order to perform the cross wind stability test with high accuracy, a cross wind blower that can suppress the deviation of the speed of the test wind in the parallel direction X is desired.

  An object of the present invention is to provide a cross wind blower that can suppress the deviation of the speed of the test wind across the parallel direction.

The present invention is a cross wind blower used for a cross wind stability test of a vehicle,
A plurality of blowing means capable of blowing a blowing gas;
A plurality of duct bodies that are provided for each blowing means and are formed in a cylindrical shape alongside in a predetermined parallel direction, and the blown gas blown by the corresponding blowing means is crossed in the intersecting direction. A plurality of duct bodies each formed with an outlet for blowing out,
Two duct bodies adjacent to each other in the parallel direction share a partition that partitions the first air outlet formed in one duct body in the parallel direction and the second air outlet formed in the other duct body in the parallel direction,
The partition portion has a first recess portion whose surface facing the first air outlet is recessed in the other side in the parallel direction with respect to a virtual surface extending in the partition direction perpendicular to the parallel direction and the intersecting direction, and a surface facing the second air outlet. The cross-wind blower is characterized in that second concave portions that are recessed in one side in the parallel direction with respect to the virtual plane are formed alternately in the partition direction.

  According to the present invention, the blowing gas blown by each blowing means passes through the internal space of the corresponding duct body and is blown out from the outlet. Since the air outlets of the duct bodies are arranged in the parallel direction, a test wind is generated by the blown air blown out from the duct bodies over a wide range extending in the parallel direction and proceeding in the intersecting direction intersecting the parallel direction. Can do.

  In the present invention, adjacent air outlets are partitioned by a partitioning portion. As for the 1st recessed part part of a partition part, the surface which faces a 1st blower outlet is dented in the other side of a parallel direction rather than the said virtual surface. Moreover, as for the 2nd recessed part part of a partition part, the surface which faces a 2nd blower outlet is dented in the parallel direction one side rather than the said virtual surface. As a result, the boundary position between the first air outlet and the second air outlet can be shifted in the parallel direction between the first concave portion and the second concave portion, and the flow velocity of the blown gas blown out from the vicinity of the partition portion is reduced. Can be suppressed. Further, it is possible to easily mix the blown gas blown from the two adjacent duct bodies. Thereby, compared with the case where the boundary line of a 1st blower outlet and a 2nd blower outlet extends along the said virtual surface, the bias | inclination of the speed of the test wind over a parallel direction can be suppressed.

Further, the present invention is a cross wind blowing device used for a cross wind stability test of a vehicle,
A plurality of blowing means capable of blowing a blowing gas;
A plurality of duct bodies that are provided for each blowing means and are formed in a cylindrical shape alongside in a predetermined parallel direction, and the blown gas blown by the corresponding blowing means is crossed in the intersecting direction. A plurality of duct bodies each formed with an outlet for blowing out;
With respect to the crossing direction, other ducts that are arranged downstream of the duct body in the flow direction of the blown gas and that are at least part of the blown gas blown out from the outlet of the duct body of interest are adjacent to the duct body of interest. It is a cross wind blower characterized by including the external guide means which guides in the parallel direction toward the blowing gas blown out from the body.

  According to the present invention, the blowing gas blown by each blowing means passes through the internal space of the corresponding duct body and is blown out from the outlet. Since the air outlets of the duct bodies are arranged in the parallel direction, respectively, the test air traveling in the intersecting direction intersecting the parallel direction is generated over a wide area extending in the parallel direction by the blown gas blown from each duct body. Can do.

  In the present invention, the blown gas is guided by the external guide means, so that at least a part of the blown gas blown from the outlet of the duct body to be noticed is blown out from the outlet of the duct body adjacent to the duct body to be noticed. Proceed toward the blown gas. As a result, it is possible to positively mix the blown gas blown from the two adjacent duct bodies, and to suppress the deviation of the speed of the test wind across the parallel direction.

Further, the present invention is a cross wind blowing device used for a cross wind stability test of a vehicle,
A plurality of blowing means capable of blowing a blowing gas;
A plurality of duct bodies that are provided for each blowing means and are formed in a cylindrical shape alongside in a predetermined parallel direction, and the blown gas blown by the corresponding blowing means is crossed in the intersecting direction. A plurality of duct bodies each formed with an outlet for blowing out;
Jet subdividing means that is arranged in the outlet forming portion where the outlet is formed and has a plurality of small openings having an opening dimension in the parallel direction smaller than the opening dimension in the parallel direction of the outlet. It is a cross wind blower characterized by including.

  According to the present invention, the blowing gas blown by each blowing means passes through the internal space of the corresponding duct body and is blown out from the outlet. Since the air outlets of the duct bodies are arranged in the parallel direction, a test wind is generated by the blown air blown out from the duct bodies over a wide range extending in the parallel direction and proceeding in the intersecting direction intersecting the parallel direction. Can do.

  In the present invention, the blown gas passes through the opening having an opening size smaller than the opening size of the blower outlet, so that the blown gas is blown out with respect to the blown gas blown out as compared with the case where the blown gas is blown directly from the blower outlet. Therefore, the longitudinal dimension of the potential core of the jet can be shortened. As a result, fluctuations in the speed distribution in a region close to the cross wind blower can be reduced, and deviations in the speed of the test wind over the parallel direction can be suppressed.

  According to the first aspect of the present invention, the first recessed portion and the second recessed portion are alternately formed in the partitioning direction in the partitioning portion that partitions the two adjacent blowing ports, Compared to the case where the boundary position with the second air outlet extends along the virtual plane, it is possible to suppress the deviation of the speed of the test wind across the parallel direction. In this way, the test wind can be brought closer to the crosswind that will be blown to the running vehicle by reducing the bias of the wind speed of the test wind caused by using multiple duct bodies, and the accuracy of the crosswind stability test Can be improved.

  According to the second aspect of the present invention, it is possible to easily mix the blown gas blown from the two adjacent duct bodies by the external guide means, and to suppress the deviation of the speed of the test wind across the parallel direction. it can. In this way, the test wind can be brought closer to the crosswind that will be blown to the running vehicle by reducing the bias of the wind speed of the test wind caused by using multiple duct bodies, and the accuracy of the crosswind stability test Can be improved.

  According to the third aspect of the present invention, it is possible to suppress the deviation of the velocity of the test wind across the parallel direction by accelerating the disappearance of the jet blown out from the outlet by the jet subdividing means. In this way, the test wind can be brought closer to the crosswind that will be blown to the running vehicle by reducing the bias of the wind speed of the test wind caused by using multiple duct bodies, and the accuracy of the crosswind stability test Can be improved.

  FIG. 1 is a cross-sectional plan view showing a part of the cross air blower 20 according to the first embodiment of the present invention. FIG. 2 is a side sectional view showing the cross air blower 20. FIG. 3 is a plan view showing the cross air blower 20. 1 is a view as seen from the section line II in FIG. 2, and FIG. 2 is a view as seen from the section line II-II in FIG.

  The crosswind fan 20 is a device for performing a crosswind stability test. As shown in FIG. 3, in the cross wind stability test, a test wind 26 corresponding to the cross wind is blown to the vehicle 25 traveling on the test road 24 by the cross wind blower 20. Next, it is a test for examining a traveling behavior such as a lateral deviation of the vehicle 25 caused by the test wind blown. The test road 24 extends in a straight line along a predetermined vehicle traveling direction. The cross wind blower 20 blows the test wind that travels across the vehicle traveling direction onto the vehicle 24 traveling on the test road 24. The cross wind blower 20 is disposed 6 m away from the test path 24 in a direction orthogonal to the vehicle traveling direction. The crosswind stability test method is defined in the automotive standard (JASO Z108).

  The cross wind blower 20 includes a plurality of blowers 21. The plurality of blowers 21 are respectively arranged facing the test path 24 and are arranged in a line along a predetermined parallel direction X. The parallel direction X is a direction extending in parallel to the vehicle traveling direction. In this specification, the direction from the upstream in the vehicle travel direction to the downstream in the parallel direction X is referred to as a parallel direction one X1, and the direction from the downstream in the vehicle travel direction to the upstream in the parallel direction X is referred to as the other parallel direction X2. Therefore, the parallel direction one X1 and the vehicle traveling direction coincide. A direction that is orthogonal to the parallel direction X and extends horizontally is referred to as an orthogonal direction Y. The direction proceeding from the cross air blower 20 to the test path 24 is referred to as the orthogonal direction one Y1, and the direction opposite to the orthogonal direction one Y1 is referred to as the orthogonal direction other Y2. Accordingly, one of the orthogonal directions Y1 is a direction from the upstream to the downstream in the flow direction of the blown gas, and is the flow direction of the blown gas. A direction perpendicular to the parallel direction X and the orthogonal direction Y is referred to as a partition direction Z. In the present embodiment, the partition direction is set to the vertical direction.

  In the present embodiment, the blower 21 is realized by an axial flow blower. As shown in FIGS. 1 and 2, each blower 21 has a blower 22 and a duct body 23. The air blowing means 22 is a means capable of blowing gas, and includes an impeller 30 serving as a moving blade, and a rotary drive 31 that rotationally drives the impeller 30 around the rotation axis L22. The rotation axis L22 is set for each of the air blowing means 22, extends in the orthogonal direction Y, and is arranged at intervals in the parallel direction X.

  The rotation drive unit 31 is realized by an electric motor, and more specifically, is realized by an AC electric motor whose rotation speed can be varied steplessly and controlled by inverter drive. By rotating the impeller 30 around the rotation axis L22 by the rotary drive 31, the gas in the other direction Y2 orthogonal to the impeller 30 is sucked toward the impeller 30 and from the impeller 30 in the orthogonal direction Y1. Is blown out. In this way, the blowing means 22 can blow the gas in one direction Y1 in the orthogonal direction.

  The duct body 23 is formed in a cylindrical shape and serves as a casing body that houses the air blowing means 22. Moreover, the duct body 23 becomes a blower outlet formation body for blowing out the blowing gas blown by the blowing means 22. The duct body 23 is fixed to a predetermined installation body such as a floor surface. The duct body 23 is generally formed in a cylindrical shape, and includes a cylindrical portion 32, a connecting cylindrical portion 33, and a rectangular cylindrical portion 34. The duct body 23 is arranged in the order of the cylindrical portion 32, the connecting cylindrical portion 33, and the rectangular cylindrical portion 34 as it proceeds in the orthogonal direction one Y1.

  The cylindrical portion 32 is formed in a cylindrical shape in which both end portions 32 a and 32 b in the orthogonal direction are opened, and supports the blowing unit 22. The cylindrical portion 32 is formed in a cylindrical shape that is coaxial with the rotation axis L <b> 22 set in the blowing means 22. The diameter of the cylindrical portion 32 is formed to be slightly larger than the diameter of the impeller 30. The other end Y <b> 2 side 32 a in the orthogonal direction of the cylindrical portion 32 is open and formed, and forms a suction port 35 of the blower 21.

  The connecting cylinder portion 33 is formed in a cylindrical shape in which both end portions 33 a and 33 b in the orthogonal direction are opened, and connects the cylindrical portion 32 and the rectangular cylinder portion 34. The other end Y2 side end 33a in the orthogonal direction of the connecting cylinder part 33 is connected to the one end Y1 side 32b in the orthogonal direction of the cylindrical part 32, and the one end Yb side 33b in the orthogonal direction of the connecting cylinder part 33 is It continues to the other end Y2 side 34a in the orthogonal direction.

  The rectangular cylindrical portion 34 is formed in a cylindrical shape in which both ends 34 a and 34 b in the orthogonal direction are opened, and faces the test path 24. The rectangular cylindrical portion 34 is formed in a square frame shape by the four side walls 16, 17, 18, and 19. The rectangular tube portion 34 is formed coaxially with the central axis of the cylindrical portion 32. One end 34 b in the orthogonal direction of the rectangular cylinder 34 is formed to be open and form an outlet 36 of the blower 21.

  The four side walls 16 to 19 of the rectangular cylinder part 34 define the air outlet 36. Of the four wall surfaces 16 to 19, the pair of side walls 16 and 17 that are opposed to each other with an interval in the partition direction Z extend in the parallel direction X. Of these two side walls 16, 17, the side wall 16 disposed below is the lower wall 16, and the side wall 17 disposed above is the upper wall. The other pair of wall surfaces 18 and 19 facing each other with an interval in the parallel direction X extend in the partition direction Z. Of these two wall surfaces 18 and 19, the side wall 18 arranged in the parallel direction one X1 becomes the parallel direction one X1 side wall 18, and the side wall 19 arranged in the parallel direction other X2 becomes the parallel direction other X2 side wall 19.

  In the present embodiment, as shown in FIG. 1, the opening dimension H2 in the parallel direction X of the rectangular cylindrical part 34 is formed larger than the inner diameter dimension H1 of the cylindrical part 32 (H2> H1). As shown in FIG. 2, the opening dimension H3 in the partitioning direction of the rectangular cylinder part 34 is formed smaller than the inner diameter dimension H1 of the cylindrical part 32 (H3 <H1). Therefore, as shown in FIG. 1, in the connecting cylinder portion 33, the dimension in the parallel direction of the opening increases in diameter θ1 and the dimension in the partitioning direction of the opening decreases in diameter θ2 as it proceeds in the orthogonal direction Y1. In the present embodiment, the inner diameter dimension H1 of the cylindrical portion 32 is selected to be about 2.7 m. Further, the opening dimension H2 in the parallel direction X of the rectangular cylindrical portion 34 is selected to be about 3 m, and the opening dimension H3 in the partition direction Z is selected to be about 2.0 m.

In the duct body 23, an internal space 37 is formed so that gas can pass in the orthogonal direction Y from the suction port 35 formed in the cylindrical portion 32 to the blowout port 36 formed in the rectangular tube portion 34. The blower 21 can suck the gas outside the duct body from the suction port 35 and blow it out from the blowout port 36 by rotating the impeller 30 of the blower unit 22. In this Embodiment, the air blower 21 can blow off blowing gas from the blower outlet 36 with the flow velocity of 20 m / sec. The air blowing means 22 can generate a wind pressure of 50 mmAq (490 kPa) with an air volume of 120 m ³ / sec.

  By arranging the rectangular cylindrical portions 34 of the duct bodies 23 in the parallel direction X in a state where they are in contact with each other, the blown gas can be blown to a wide area in the parallel direction X. Specifically, the cross-wind blower 20 can blow the blown gas over the blow area 27 whose cross section perpendicular to the orthogonal direction Y is rectangular. The parallel direction dimension of the blower area 27 is a dimension obtained by multiplying the parallel direction dimension H2 of the rectangular cylindrical portion 34 by the number (n) of the blowers 21 (H2 × n). In addition, the partition direction dimension of the air blowing area 27 is the partition direction Z dimension of the partition direction dimension H3 of the rectangular tube portion 34. As described above, the air blowing region 27 has a rectangular cross-sectional shape perpendicular to the vertical elevation.

  In the present embodiment, the cross wind blower 20 has five blowers 21. In this case, the cross-wind blower 20 can blow the blown gas in the orthogonal direction Y over the rectangular blow area 27 having a parallel dimension of approximately 15 m (= 3 × 5 m) and a partition dimension of approximately 2 m. . In this way, by blowing the blown gas over the blowing region 24 extending in a wide range in the parallel direction X, it is possible to blow a test wind simulating a cross wind to the traveling vehicle. Moreover, the number of the air blowers 21 which the cross wind blower 20 has is not restricted to this. For example, the number may be 15 or more.

  Moreover, each air blower 21 has a wind direction changing means for changing the wind direction of the test wind. By the wind direction changing means, the cross wind blowing device 20 can blow the blown gas in a direction crossing the parallel direction X. The wind direction changing means includes a wind direction changing member 40 and an angular displacement driving device 41 for driving the wind direction changing member 40 to be angularly displaced. As shown in FIG. 2, the wind direction changing member 40 is arranged in one direction Y <b> 1 perpendicular to the duct body 23. In other words, the wind direction changing member 40 is disposed below the rectangular cylinder portion 34 in the duct body 23 in the flow direction of the blown gas.

  FIG. 4 is a front view showing a part of the wind direction changing member 40 and the angular displacement driving device 41. FIG. 5 is a plan view showing a part of the wind direction changing member 40. In FIG. 5, a state where each wind direction changing member 40 is arranged at the reference position is indicated by a solid line, and a state where each wind direction changing member 40 is angularly displaced from the reference position is indicated by a two-dot chain line.

  The wind direction changing means has a plurality of wind direction changing members 40. Each of the wind direction changing members 40 is formed in a rectangular plate shape, and is arranged with an interval in the parallel direction X. Each wind direction changing member 40 extends in the partition direction Z in the longitudinal direction, and extends between the lower wall 16 and the upper wall 17 of the duct body 23. The wind direction changing member 40 is supported by the duct body 23 so as to be angularly displaceable around a predetermined angular displacement axis L40. In the present embodiment, the angular displacement axis L40 passes through the other end Y2 end in the orthogonal direction of the wind direction changing member 40.

  In the reference state in which each wind direction changing member 40 is located at a predetermined reference position, the width direction of the wind direction changing member 40 extends in parallel to the orthogonal direction Y. At the reference position, each wind direction changing member 40 is formed in a tapered shape in which the dimension in the thickness direction, in other words, the dimension in the parallel direction becomes smaller as it proceeds from the other Y2 end in the orthogonal direction to the one in the orthogonal direction Y1. In a state where each wind direction changing member 40 is displaced from the reference state by a predetermined inclination angle α around the angular displacement axis L40, the width direction of the wind direction changing member 40 is inclined at the inclination angle α with respect to the orthogonal direction Y. In the present embodiment, each wind direction changing member 40 is configured to be angularly displaceable about the angular displacement axis L40 within an angle range of ± 30 degrees from the reference state. As a result, the blown gas can be blown along any direction that intersects the parallel direction X.

  When the blown gas blown out from the duct body 23 collides with the wind direction changing member 40, it advances along the surface of the wind direction changing member 40. Therefore, in the reference state in which the wind direction changing member 40 is parallel to the orthogonal direction Y, the blown gas flows in the orthogonal direction Y. On the other hand, in a state where the wind direction changing member 40 is inclined with respect to the orthogonal direction Y, the blown gas flows while being inclined with respect to the orthogonal direction Y. In this way, the wind direction changing member 40 guides the blown gas.

  In this Embodiment, each wind direction change member 40 is each connected by the parallel link mechanism. The parallel link mechanism includes a plurality of first link members 42 that individually connect the wind direction changing members 40 and a second link member 43 that connects the first link members 42 so as to be angularly displaceable. . The first link member 42 is configured to be rotatable around the angular displacement axis L40. By displacing the second link member 43, each wind direction changing member 40 together with the first link member 42 is angularly displaced about the angular displacement axis L40.

  The angular displacement drive unit 41 angularly drives the second link member 43 around a parallel axis L43 parallel to the angular displacement axis L40, whereby each wind direction changing member 40 is angularly displaced in conjunction with each other. In the present embodiment, the angular displacement drive machine 41 is realized by an electric motor, and the output shaft of the motor and the second link member 43 are connected via a connecting rod 44.

  By angularly driving the output shaft of the motor of the angular displacement driving device 41, each wind direction changing member 40 can be angularly driven around the corresponding angular displacement axis L40. The blower 21 includes an angle sensor that detects an angular displacement amount with respect to the reference position of the wind direction changing member 40. In the present embodiment, the angle sensor is realized by an encoder that detects the amount of rotation of the output shaft of the angular displacement driver 41.

  FIG. 6 is a block diagram showing an electrical configuration of the cross air blower 20. As described above, each blower 21 includes the rotation drive 31, the inverter circuit 45 for driving the rotation drive 31, the angular displacement drive 41, and the angle sensor 46 that detects the angular position of the wind direction changing member 40. Respectively. In addition to the plurality of blowers 21, the cross wind blower 20 includes a control unit 47 that individually gives a control command to each blower 21.

  The control means 47 has an input unit to which a command from the worker is input, and a rotation command is input from the worker through the input unit. When the rotation command is input, the control unit 47 gives the rotation command including the set rotation speed to the inverter circuit 45 of each blower 21. In response to the rotation command given from the control means 47, the inverter circuit 45 gives a drive current corresponding to the set rotation speed to the rotary drive machine 31. The rotation drive machine 31 rotates the impeller 30 at a set rotation speed when a drive current is applied from the inverter circuit 45. The cross-wind blower 20 can set the set rotation speed steplessly by rotating the rotary drive 31 by the inverter circuit 45.

  The angle sensor 46 provides angle information indicating the angle position of the wind direction changing member 40 to the control means 47. The control means 47 gives a drive command to the angular displacement drive machine 41 based on the angle information given from the angle sensor 46. The angular displacement drive machine 41 can change the wind direction of the blown gas blown from each blower 21 by driving each wind direction changing member 40 in an angular displacement manner in response to a drive command given from the control means 47. it can.

  The control means 47 is realized by a computer. The control means 47 includes a storage unit, an arithmetic processing unit, an input unit, and an output unit. The storage unit stores a predetermined operation program. The input unit gives information given from the operator, the inverter circuit 45 and the angle sensor 46 to the arithmetic processing unit. The arithmetic processing unit reads an operation program stored in the storage unit, outputs an operation result based on information provided from the input unit according to the read operation program, and provides the output result to the output unit. The output unit gives the output result given from the arithmetic processing unit to the inverter circuit 45 and the angular displacement driver 41 as a control command. For example, the storage unit includes a storage circuit such as a RAM and a ROM, and the arithmetic processing unit includes a processing circuit such as a CPU. The input unit and the output unit are composed of input / output interfaces.

  FIG. 7 is a perspective view schematically showing the rectangular cylindrical portion 34 in the duct body 23. The duct body 23 is generally formed in a cylindrical shape. The duct body 23 accommodates the corresponding air blowing means 22 in the internal space 37 and is formed with an air outlet 36 for blowing the blown gas 26 blown by the air blowing means 22 accommodated therein. The air outlets 36 of the duct bodies 23 are formed side by side in the parallel direction X, respectively.

  In the present embodiment, the two rectangular tube portions 34c and 34d adjacent to each other in the parallel direction X include a first air outlet 36c formed in one rectangular tube portion 34c and a second air tube formed in the other rectangular tube portion 34d. The partition 50 that partitions the two outlets 36d is shared. In other words, of the two adjacent rectangular tube portions 34c and 34d, the other Y2 side wall 19 in the parallel direction of the first rectangular tube portion 34c on the X1 side in the parallel direction and the second rectangular tube portion 34d on the other X2 side in the parallel direction. The parallel direction one X1 side wall 18 comprises a common partition portion 50. The partition part 50 introduces a high-speed air stream on the air blower center side into a low-speed region on the downstream side in the flow direction between the adjacent blowers 21.

  FIG. 8 is a cross-sectional view in which a part of the end portion on the Y1 side in the orthogonal direction of the partition portion 50 is cut along a cutting plane line perpendicular to the orthogonal direction Y. FIG. 9 is a cross-sectional view taken along section line IX-IX in FIG. A first recessed portion 51 and a second recessed portion 52 are formed at least at one end in the orthogonal direction on the Y1 side of the partition portion 50.

  The first concave portion 51 and the second concave portion 52 are alternately arranged in the partition direction Z, and the cross-sectional shape is formed in a zigzag corrugated plate shape. Both ends of the first recess 51 in the partition direction Z are connected to the end of the adjacent second recess 51 in the partition direction. The first concave portion 51 and the second concave portion 52 are formed in a rotationally symmetric shape. In the present embodiment, the first concave portion 51 and the second concave portion 52 are formed in an arc shape in a cross-sectional shape cut by a plane perpendicular to the orthogonal direction Y.

  The first recessed portion 51 guides the blown gas traveling in the first rectangular tube portion 34c to the other parallel direction X2 as it proceeds in the first orthogonal direction one Y1. Further, the second concave portion 52 guides the blown gas traveling in the second rectangular cylinder portion 34d to the one side X1 in the parallel direction as it proceeds in the other direction Y2 in the first orthogonal direction.

  Specifically, the first recessed portion 51 has a first blower outlet adjoining surface 53 facing the first blower outlet 36c in the other direction X2 in the parallel direction with respect to the virtual surface 54 that is perpendicular to the parallel direction X and extends in the partition direction Z. Dent. The first air outlet adjacent surface 53 of the first concave portion 51 gradually inclines toward the other side Y2 in the parallel direction as it proceeds in the first orthogonal direction Y1, and the region recessed in the other direction Y2 is the partition direction Z. To spread. In this Embodiment, the 1st blower outlet adjacent surface 53 of the 1st recessed part part 51 forms the semi-conical recess divided | segmented by cut | disconnecting a cone by the plane in alignment with the axis line. Concentration of stress can be prevented by forming the conical shape.

  Further, in the second recessed portion 52, the second air outlet adjacent surface 55 facing the second air outlet 36d is recessed in one side X1 in the parallel direction with respect to the virtual surface 54. The second blower outlet adjacent surface 55 of the second recessed portion 52 inclines toward the other side Y2 in the parallel direction as it proceeds in the first orthogonal direction one Y1, and a region recessed in the parallel direction one Y1 spreads in the partition direction Z. . In the present embodiment, the second outlet adjacent surface 55 of the second concave portion 52 forms a semiconical recess that is divided by cutting the cone along a plane along its axis.

  The deepest position P1 of the first concave portion 51 and the deepest position P2 of the second concave portion 52 are located on both sides of the virtual line 54. Here, the deepest position P1 of the first recessed portion 51 is a position that is the most recessed in the other X2 in the parallel direction in the first outlet adjacent surface 53 of the first recessed portion 51. Similarly, the deepest position P2 of the second recessed portion 52 is a position that is the most recessed in the parallel direction one X1 in the second blower outlet adjacent surface 55 of the second recessed portion 52.

  As a result, the boundary position between the first air outlet 36 c and the second air outlet 36 d can be shifted in the parallel direction X between the first concave portion 51 and the second concave portion 52, and the air is blown out from the vicinity of the partition portion 50. About blowing gas, the fall of the average flow velocity of the partition direction Z can be suppressed. Further, it is possible to easily mix the blown gas blown from the two adjacent duct bodies 34c and 34d.

  As shown in FIG. 9, in the present embodiment, the first concave portion 51 and the second concave portion 52 are set in advance from the one end surface 57 on the Y1 side in the orthogonal direction of the partition portion 50 toward the other Y2 in the orthogonal direction. It is formed with a length L1. In other words, the remaining part of the partition part 50 other than the Y1 end part in the orthogonal direction is formed in a flat shape extending along the virtual surface 54. The set length dimension L1 is set to a dimension that can sufficiently increase the flow velocity of the blown gas flowing through the recesses of the recess portions 51 and 52.

  The set depths B1 and B2 that are the lengths in the parallel direction X from the virtual surface 54 to the deepest positions P1 and P2 of the concave portions 51 and 52 on the Y1 side end surface 57 in the orthogonal direction of the partition portion 50 are The boundary position between the first outlet 36c and the second outlet 36d is set to a dimension that can sufficiently increase the amount of deviation in the parallel direction X.

  FIG. 10 is a cross-sectional view showing the cross-wind blower 20 in a simplified manner in order to explain the flow velocity distribution of the blown gas. FIG. 10 shows the velocity distribution in the parallel direction X of the blown gas, which is averaged with respect to the partition direction Z by arrows 57, and the flow velocity increases as the length of the arrows 57 increases for each position in the parallel direction X in the velocity distribution. Means that.

  In the present embodiment, the first recess portion 51 and the second recess portion 52 can shift the boundary position between the first air outlet 36c and the second air outlet 36d in the parallel direction X. Specifically, in the first concave portion 51, the boundary position is located in the other direction X2 in the parallel direction with respect to the virtual surface 54, and in the second concave portion 52, the boundary position is in one direction X1 in the parallel direction with respect to the virtual surface 54. To position. In each of the concave portions 51 and 52, the blown gas can flow along the virtual surface 55. Thereby, the fall of the flow velocity of the blowing gas blown out from the area | region of the partition part 50 can be suppressed.

  Thus, in the present embodiment, as shown in FIG. 10, the blown gas can be made to flow in one direction Y <b> 1 in the orthogonal direction even in the boundary region 56 between the adjacent blowers 21. Therefore, the velocity distribution of the blown gas can be made gentler in the parallel direction X as compared with the prior art shown in FIG.

  As described above, according to the present embodiment, the blown gas blown by each blowing means 22 passes through the internal space 37 of the corresponding duct body 23 and is blown out from the outlet 36. Since the air outlets 36 of the respective duct bodies 23 are arranged in the parallel direction X, respectively, the test winds proceeding in the orthogonal direction Y are generated over a wide area extending in the parallel direction X by the respective blown gases blown out from the respective duct bodies 23. be able to.

  Further, by forming the concave portions 51 and 52 in the partition portion 50, it is possible to suppress a decrease in the flow velocity of the blown gas blown from the vicinity of the partition portion 50. In this way, the test wind can be made closer to the crosswind that will be blown to the running vehicle by alleviating the uneven wind speed of the test wind caused by using the plurality of blowers 21. Accuracy can be improved.

  Furthermore, by alternately arranging the first concave portions 51 and the second convex portions 52, it is possible to easily mix the blown gas blown from the two adjacent duct bodies 36c and 36d. Also by this, compared with the case where the boundary of the 1st blower outlet 36c and the 2nd blower outlet 36d extends along the virtual surface 54, the bias | inclination of the speed of the test wind over the parallel direction X can be suppressed, and a cross wind stability test Accuracy can be improved.

  Moreover, in this Embodiment, the rectangular cylinder part 34 expands in diameter in the parallel direction X compared with the cylindrical part 32, and can arrange | position the cylindrical cylinder part 32 at intervals in the parallel direction X, and a crosswind test The apparatus 20 can be easily installed. Moreover, each blowing means 22 can be prevented from being undesirably disturbed by the influence of the adjacent blowing means 22 by being partitioned by the cylindrical portion 32. Further, as described above, by forming the concave portions 51 and 52 in the partition portion 50, the air is blown out from between the blowers 21 caused by expanding the diameter of the rectangular cylindrical portion 34 with respect to the cylindrical cylindrical portion 32. A decrease in the speed of the blown gas can be suppressed.

  Moreover, in this Embodiment, by arranging the blower 21 which has a diameter dimension close | similar to 2 m which is the height of the partition direction Z requested | required by the test wind in the parallel direction X, the cross wind fan 20 undesirably enlarges. It is possible to generate the necessary test wind without doing so. Moreover, while using the axial blower 21 and accommodating the ventilation means 21 in the duct body 23, the length of the duct body 23 in the orthogonal direction Y can be shortened. Further, by adopting a configuration that suppresses the unevenness of the velocity distribution, even if the length of the duct body 23 in the orthogonal direction is shortened, the unevenness of the velocity distribution can be reduced, and the cross air blower 20 can be further downsized.

  Moreover, in this Embodiment, the blower outlet adjacent surfaces 53 and 55 of each recessed part 51 and 52 are smoothly connected with the remaining part, and it inclines gradually in the parallel direction X while progressing to the orthogonal | vertical direction one Y1. Thereby, it can prevent that the boundary layer of blowing air peels from the blower outlet adjacent surfaces 53 and 55. FIG. Further, by gradually inclining in the parallel direction X, the depth of one end Y1 in the orthogonal direction of the partition 50 can be increased, and the deviation of the test wind speed across the parallel direction X can be suppressed. Furthermore, the blown gas blown out along the concave portions 51 and 52 can be expanded in the parallel direction X, and the blown gases blown out from the two adjacent duct bodies 23 can be mixed more reliably. Moreover, in this Embodiment, the partition part 50 is made common by the adjacent duct body 23, By making the partition part 50 as thin as possible, the orthogonal | vertical direction one Y1 edge part depth of the partition part 50 is made. It is possible to increase the size, and to suppress the deviation of the test wind speed across the parallel direction X.

  FIG. 11 is a diagram illustrating a modification of the partition portions 50a to 50c of the first embodiment. FIG. 11 is a cross-sectional view in which a part of the end portion X1 on the one side in the orthogonal direction of the partition portion 50 is cut along a cutting plane line perpendicular to the orthogonal direction Y. In the present embodiment, the partition 50 has a corrugated shape formed in an S shape, but is not limited thereto, and may be formed in a polygonal corrugated shape. Moreover, the 1st recessed part 51 and the 2nd recessed part 52 should just be formed, and the other partition part 50 is applicable.

  For example, as shown in FIG. 11 (1), the respective concave portions 51 and 52 of the partition portion 50a may be formed so as to form a triangular pyramid-shaped recess. Moreover, as shown in FIG. 11 (2), each recessed part 51 and 52 of the partition part 50b may be formed so that a rectangular-shaped recessed part may be formed. Moreover, as shown in FIG. 11 (3), the partition part 50c may be formed from two members. Even in this case, the deepest position P1 of the first concave portion 51 and the deepest position P2 of the second concave portion 52 are located on both sides of the virtual line 54, thereby achieving the above-described effect. be able to.

  Further, in the present embodiment, the recess formed by the concave portions 51 and 52 of the partition portion 50 increases in both the parallel direction X and the partition direction Z as it proceeds in the orthogonal direction Y1. It may be increased only in one direction. Moreover, either or both of a parallel direction X dimension and a partition direction Z dimension may be uniform as it progresses to one orthogonal direction Y1. Moreover, although it is preferable that the 1st recessed part 51 and the 2nd recessed part 52 are directly connected, the 1st recessed part 51 and the 2nd recessed part 52 may be connected via a connection part. Moreover, in this Embodiment, although it was supposed that each recessed part 51,52 was formed in the orthogonal | vertical direction one Y1 side edge part of the partition part 50, from the orthogonal | vertical direction one end part to the other end part of the partition part 50, each Concave portions 51 and 52 may be formed.

  FIG. 12 is a cross-sectional plan view showing a part of the cross wind fan 120 according to the second embodiment of the present invention. The cross wind fan 120 of the second embodiment of the present invention has a configuration similar to the cross wind fan 20 of the first embodiment. The description corresponding to the configuration of the cross air blower 120 corresponding to the cross wind blower 20 of the first embodiment is omitted, and the same reference numerals are given.

  The cross wind fan 120 of the second embodiment is different in that the arrangement of the wind direction changing member 40 is different and the partition 50 is configured to extend along the virtual plane 54. Other configurations are the same as those in the first embodiment. Is the same. Moreover, the cross wind fan 120 of 2nd Embodiment should just have the external guide means 70 mentioned later, and may be the same as 1st Embodiment about another structure.

  In the cross wind blower 120, at least one of the plurality of wind direction changing members 40 provided in the duct body 23 of interest is the external guide member 70. The external guide member 70 is arranged so that at least a part of the blown gas blown from the outlet 36 of the duct body 23 of interest is directed toward the blown gas blown from the duct body adjacent to the duct body of interest. Guide to X.

  In the present embodiment, in the duct body 23e at one end X1 in the parallel direction, among the plurality of wind direction changing members 40 provided in the duct body 23e, the plurality of wind direction changing members 40 on the other side X2 in the parallel direction are external guide members. The remaining wind direction changing member becomes the standard wind direction changing member 71. Similarly, in the duct body 23 at the other end X2 in the parallel direction, among the plurality of wind direction changing members 40 provided in the duct body 23, the plurality of wind direction changing members 40 on the X1 side in the parallel direction becomes the external guide member 70b. The remaining wind direction changing member 71 becomes the standard wind direction changing member 71.

  Further, in the duct body 23 in which the duct body 23f is adjacent to both sides in the parallel direction, among the plurality of wind direction changing members 40 provided in the duct body 23f, the plurality of wind direction changing members 40 on the one side X1 side and the other X2 side in the parallel direction. The external guide members 70 a and 70 b become the remaining wind direction changing members 71 and the remaining wind direction changing members 71.

  FIG. 13 is a diagram showing the wind direction changing member 40 in a simplified manner. FIG. 13A shows the position of the wind direction changing member 40 in the reference state. FIG. 13B is a diagram showing a state in which the wind direction changing member 40 is angularly displaced from the reference state by a predetermined inclination angle α around the angular displacement axis L40.

  As shown in FIG. 13A, the standard wind direction changing member 71 extends in parallel to the orthogonal direction Y in the reference state. The external guide members 70a and 70b are inclined at a predetermined angle ± β with respect to the orthogonal direction Y. One external guide member 70b in the parallel direction and the other external guide member 70b in the parallel direction differ in the positive / negative of the set angle ± β.

  Specifically, the external guide member 70b in the parallel direction one X1 is inclined toward the parallel direction one X1 with respect to the standard wind direction changing member 71 as it proceeds from the orthogonal direction other side end to the orthogonal direction one side end. . Further, the external guide member 70a in the other parallel direction X2 is inclined with respect to the standard wind direction changing member 71 toward the other parallel direction X1 from the other end in the orthogonal direction toward the one end in the orthogonal direction. As described above, the external guide members 70a and 70b are respectively fixed to the corresponding first link members 42 while being inclined at the set angle ± β.

  When the blown gas collides with the external guide members 70 a and 70 b and the standard wind direction changing member 71, the blown gas advances along the surfaces of the collided members 70 a, 70 b and 71. In the reference state, the blown gas blown out from the parallel direction X intermediate region of the duct body 23 in the blown gas collides with the standard wind direction changing member 71 and is guided to proceed in the orthogonal direction Y. On the other hand, the blast gas blown out from both sides of the duct body 23 in the parallel direction out of the blast gas collides with the external guide members 70a and 70b and is guided so as to proceed in the direction inclined with respect to the orthogonal direction Y. Is done. In the reference state, the blown gas guided by the external guide member 70b on the X1 side in the parallel direction proceeds in one direction Y1 in the orthogonal direction and in one direction X1 in the parallel direction. Further, the blown gas guided by the external guide member 70a on the other side X2 side in the parallel direction proceeds in one direction Y1 in the orthogonal direction and in the other direction X2 in the parallel direction.

  In this way, by guiding a part of the blown gas blown from each of the two adjacent duct bodies in the direction close to the parallel direction X, the two blown gases can be mixed positively and in parallel. The deviation of the speed of the test wind over the direction X can be suppressed. In other words, the blown gas can be guided to the adjacent area of the blown air 21 and the bias of the wind speed distribution is prevented as a whole.

  As shown in FIG. 13 (2), when the standard wind direction changing member 71 is angularly displaced at a predetermined inclination angle α with respect to the orthogonal direction Y from the reference state, the external guide members 70a and 70b are moved in the orthogonal direction Y. On the other hand, it is inclined at an angle obtained by adding a predetermined set angle ± β and an inclination angle α. As a result, even when the wind direction of the blown gas is changed by angularly displacing each wind direction changing member 40 and the wind direction of the blown gas is changed, the two blown gases can be actively mixed, Speed deviation can be suppressed.

  As described above, according to the present embodiment, the blown gas blown by each blowing means 22 passes through the internal space 37 of the corresponding duct body 23 and is blown out from the outlet 36. Since the air outlets 36 of the respective duct bodies 23 are arranged in the parallel direction X, respectively, the test winds proceeding in the orthogonal direction Y are generated over a wide area extending in the parallel direction X by the respective blown gases blown out from the respective duct bodies 23. be able to.

  Further, by providing the external guide member 70, at least a part of the blown gas blown out from the outlet 36 of the duct body 23 of interest is blown out from the outlet 36 of the duct body 23 adjacent to the duct body 23 of interest. Guidance can be directed toward the blown gas. As a result, it is possible to positively mix the blown gases blown from the two adjacent duct bodies 23, and to suppress the deviation of the speed of the test wind across the parallel direction X. In this way, the test wind can be made closer to the crosswind that will be blown to the running vehicle by reducing the bias of the wind speed of the test wind caused by using the plurality of duct bodies 23, and the crosswind stability test Accuracy can be improved.

  Further, in the present embodiment, by realizing the external guide member 70 as one of the wind direction changing members 40, even if the wind direction of the blowing gas blown from the cross wind blowing device 120 is changed, it is separately provided. Without changing the configuration, it is possible to suppress the deviation of the speed of the test wind across the parallel direction X.

  Further, the set angle ± β set for the external guide members 70a and 70b is prevented from interfering with the adjacent external guide member even if the standard wind direction changing member 71 is displaced by a predetermined inclination angle, for example, ± 30 degrees. The angle is set. Further, the set angle ± β is set so that the wind speed distribution in the parallel direction X of the test wind formed by each blown gas is at least uniform in a state where at least the blown gas reaches the test path 24.

  FIG. 14 is a diagram illustrating a cross air blower 120a according to a modification of the second embodiment. The cross wind fan 120a of the modification of 2nd Embodiment differs from the cross wind fan 120 of 2nd Embodiment in the combination of the external guide members 70a and 70b and the standard wind direction change member 71 among the wind direction change members 40. FIG. Other configurations are the same as those of the modification of the second embodiment.

  In the cross air blowing device 120 a shown in FIG. 12, among the plurality of wind direction changing members 40, only one wind direction changing member 40 arranged at the center position in the parallel direction X of the duct body 23 becomes the standard wind direction changing member 71. All the wind direction changing members 40 in the parallel direction one X1 become the external guide members 70b in the parallel direction one X1 rather than one standard wind direction changing member 71, respectively. Further, rather than one standard wind direction changing member 71, all the wind direction changing members 40 in the other parallel direction X1 are the external guide members 70a in the other parallel direction X2.

  As described above, in the modified cross wind blower 120a, all the remaining wind direction changing members 40 except the one wind direction changing member 40 arranged at the center position in the parallel direction X of the duct body 23 are external guide members 70a and 70b. Configured as

  The blown gas passing through one side X1 in the parallel direction from the center position in the parallel direction X of the duct body 23 proceeds in one side X1 in the parallel direction as it proceeds in one direction Y1 in the orthogonal direction. Further, the blown gas passing through the other side X2 in the parallel direction from the center position in the parallel direction X of the duct body 23 proceeds to the other side X2 in the parallel direction as it proceeds to the one side Y1 in the orthogonal direction. Thus, even if it is a case where blowing air is guided, the effect similar to the cross wind ventilation apparatus 120 of 2nd Embodiment mentioned above can be acquired. Further, by setting the initial angular position around the angular displacement axis L40 in the reference state of each wind direction changing member 40 so that the blown gas spreads in the parallel direction X, the wind speed distribution can be improved.

  As another modification of the second embodiment, the setting angle of each wind direction changing member 40 may be set individually. For example, each set angle set for each wind direction changing member 40 may be set to gradually increase each time the duct body 23 moves away from the center position in the parallel direction X in the parallel direction X. For example, the wind direction changing members 40 in the reference state may be arranged so as to be arranged radially.

  Further, the two configurations of the second embodiment and the first embodiment may be combined. Specifically, the recessed portions 51 and 52 are formed in the partition portion 50, and an external guide member 70 that guides the blown gas outward in the parallel direction may be provided. As a result, the effect of reducing the speed deviation in the parallel direction X can be further enhanced.

  In the present embodiment, the blown gas is guided by the external guide members 70a and 70b on both sides in the parallel direction, but the present invention is not limited to this. For example, the structure which has any one of the external guide member 70b of the parallel direction one X1 and the external guide member 70b of the other parallel direction X2 may be sufficient. In the present embodiment, the external guide member 70 is realized by the wind direction changing member 40, but may be realized by a member different from the wind direction changing member 40. The external guide means may be realized by a configuration other than the external guide member 70.

  FIG. 15 is a cross-sectional plan view showing a part of the cross wind fan 220 according to the third embodiment of the present invention. In FIG. 15, the potential core 76 is indicated by a broken line. The cross wind fan 220 of the third embodiment of the present invention has a configuration similar to the cross wind fan 20 of the first embodiment. The description corresponding to the configuration of the cross air blower 220 corresponding to the cross wind blower 20 of the first embodiment is omitted, and the same reference numerals are given.

  The cross-wind blower 220 of the third embodiment has a jet subdividing means 73 and the partition 50 is configured to extend along the virtual surface 54. Other configurations are the same as those of the first embodiment. Are the same. Moreover, the cross-wind air blower 220 of 3rd Embodiment should just have the jet flow subdivision means 73, and about another structure, either what was 1st Embodiment and 2nd Embodiment, or what combined them. It may be the same.

  The cross wind blower 220 has jet subdividing means 73. The jet subdividing means 73 is means for subdividing the jet formed in the blown gas blown out as a jet from the outlet 36. The jet subdividing means 73 is fixed to the blower outlet forming part 74 in which the blower outlet 36 is formed in the rectangular cylindrical part 33. The jet subdividing means 73 is provided for each blower 21, is formed in a plate shape extending perpendicular to the orthogonal direction Y, and closes the outlet 36.

  The jet subdividing means 73 is formed with a plurality of small openings 75 arranged in the parallel direction X having an opening dimension H4 in the parallel direction smaller than the opening dimension H2 in the parallel direction of the air outlet 36. The small opening 75 penetrates the jet subdividing means 73 in the orthogonal direction Y. The blown gas passes through the small opening 75 of the jet subdividing means 73 and is extracted from the duct body 23.

  Specifically, the jet subdividing means 73 is realized by a perforated plate or a partition plate. The perforated plate and the partition plate are formed in a plate shape to form a plurality of through holes. The perforated plate has a uniform resistance coefficient and is realized by, for example, punching metal. The partition plate has a uniform resistance coefficient, and is realized by, for example, a square mesh rectifying wire mesh.

  The small opening 75 formed in the jet subdividing means 73 is set to have such an opening diameter that the potential core 76 disappears by the predetermined allowable distance H5 from the blowout port 36 in one of the orthogonal directions Y1. In other words, the small opening 75 formed in the jet subdividing means 73 is set to have an opening diameter such that the length of the potential core 76 in the orthogonal direction Y is smaller than the allowable distance H5.

  FIG. 16 is a plan cross-sectional view showing a part of the cross air blower 10 of the comparative example. The cross wind fan 10 of the comparative example has a configuration in which the jet subdividing means 73 is removed as compared with the cross wind fan 220 of the third embodiment. In FIG. 16, the potential core 76 is indicated by a broken line.

  As shown in FIG. 16, when the jet subdividing means 73 is removed, the opening diameter H <b> 4 of the outlet 36 becomes the nozzle diameter, so the blown gas blown out from the duct body 23 has a large potential core 76. . In this case, the length H6 of the potential core 76 in the orthogonal direction Y is also increased. The speed change is large between the region where the potential core 76 is formed and the region other than the potential core 76, and the speed in the parallel direction X is biased.

  In the present embodiment, as shown in FIG. 15, the opening through which the blown gas blows out can be reduced by the jet subdividing means 73. As a result, the blown gas blown out from the duct body 23 has a small potential core 76 as compared with the comparative example. As described above, in the present embodiment, the length H5 in the orthogonal direction Y of the potential core 76 can be reduced, and the speed deviation in the parallel direction X caused by the potential core 76 can be reduced. In other words, in the present embodiment, the disappearance of the potential core 76 can be accelerated with respect to the orthogonal direction Y, and the influence of the potential core 76 can be prevented from affecting the test wind.

  As described above, in the present embodiment, the blown gas blown by each blower 22 passes through the internal space 37 of the corresponding duct body 23 and is blown out from the blowout port 36. Since the air outlets 36 of the respective duct bodies 23 are arranged in the parallel direction X, respectively, the test winds proceeding in the orthogonal direction Y are generated over a wide area extending in the parallel direction X by the respective blown gases blown out from the respective duct bodies 23. be able to.

  Further, by speeding up the disappearance of the jet flow blown from the air outlet 36 by the jet flow subdividing means 73, it is possible to suppress the deviation of the speed of the test wind across the parallel direction X. In this way, the test wind can be made closer to the crosswind that will be blown to the running vehicle by reducing the bias of the wind speed of the test wind caused by using the plurality of duct bodies 23, and the crosswind stability test Accuracy can be improved.

  In this embodiment, a plate-like body having a uniform resistance coefficient is used as the jet subdividing means 73, but the resistance coefficient may not be uniform. Further, the small opening 75 of the jet subdividing means 73 may be formed extending in the partition direction Z. Moreover, the accuracy of the cross wind stability test can be further improved by adding at least one of the configurations of the first embodiment and the second embodiment to the cross wind test apparatus 220 of the third embodiment which is the present embodiment. . For example, the cross wind test device 220 may have the jet subdividing means 73 and may further include the partition 50 having the respective concave portions 51 and 52 and the external guide member 70.

  FIG. 17 is a cross-sectional plan view showing a part of the cross wind blower 320 according to the fourth embodiment of the present invention. The cross wind fan 320 of the fourth embodiment of the present invention has a configuration similar to that of the cross wind fan 20 of the first embodiment. In the cross wind fan 320, the description corresponding to the cross wind fan 20 of the first embodiment is omitted, and the same reference numerals are given.

  The cross wind blower 320 of the fourth embodiment has an external resistor 80, and the partition 50 is configured to extend along the virtual plane 54, and the position where the wind direction changing means is provided is different. The configuration is the same as in the first embodiment. Moreover, the cross wind fan 320 of 4th Embodiment should just have the external resistor 80, and about another structure, what was combined with any one of 1st Embodiment-3rd Embodiment, or those. May be the same.

  The cross wind blower 320 of the fourth embodiment has an external resistor 80. The external resistor 80 becomes a resistance against the flow of the blown gas. The external resistor 80 is disposed so as to be spaced apart in the direction Y1 perpendicular to the respective duct bodies 23 and is disposed so as to face the entire air outlet 36 of each duct body 23. The external resistor 80 is formed with a plurality of small openings 82 aligned in the parallel direction X smaller than the air outlet 36. The small opening 82 penetrates the external resistor 80 in the orthogonal direction Y.

  Specifically, the external resistor 80 is realized by a perforated plate or a partition plate. The perforated plate and the partition plate are formed in a plate shape to form a plurality of through holes. The perforated plate has a uniform resistance coefficient and is realized by, for example, punching metal. The partition plate has a uniform resistance coefficient, and is realized by, for example, a square mesh rectifying wire mesh.

The small openings 82 formed in the external resistor 80 are set to dimensions that make the velocity distribution of the blown gas extracted from the external resistor 80 substantially uniform. The resistance coefficient of the external resistor 80 is set to a value that can improve the speed distribution and does not become excessive. Here resistance coefficient K is expressed by ^{Δp / (ρu 2/2)} . Δp is the pressure loss before and after passing through the external resistor, ρ is the gas density, and u is the flow velocity of the blown gas before passing through the external resistor 80.

  Further, the separation distance H6 that is the dimension Y in the orthogonal direction from the blower outlet 36 to the external resistor 80 is set to a distance that allows mixing of the blown gas. If the separation distance H6 is too short, the mixing effect blown out from the adjacent duct body is small.

  In the present embodiment, a part of the blown gas blown from the outlet 36 is blocked by the external resistor 80 when passing through the external resistor 80. As a result, the blown gas spreads in the parallel direction X and passes through the external resistor 80 as compared to the state where the blown gas is blown from the blower outlet 36. Since the external resistor 80 is separated from each duct body 23 in the flow direction downstream side, the blown gas can be blown also from a boundary position between the two adjacent duct bodies 23. In addition, it is possible to easily mix the air blown from the two adjacent duct bodies before the external resistor 80. As a result, it is possible to promote the uniformization of the speed in the parallel direction X of the blown gas that has passed through the external resistor 80 and to suppress the deviation in the speed of the test wind across the parallel direction X.

  In the present embodiment, the cross air blower 320 has a frame body 81 serving as a support means for supporting the external resistor 80. The frame 81 is formed in a square frame shape by four side walls. The other end of the frame body 81 in the orthogonal direction is fixed to the duct body 23. The frame body 81 is open at both ends in the orthogonal direction.

  The four side walls of the frame body 81 extend along the outer edges of the cylinders obtained by combining the rectangular cylinder portions 34 of the duct bodies 23. Of the four side walls of the frame 81, the upper wall and the lower wall face each other with an interval in the partition direction Z. The upper wall of the frame 81 extends from one side wall of the duct body 23 in the most parallel direction X1 to the other side wall in the parallel direction of the duct body 23 in the other parallel direction X2 among the plurality of duct bodies 23, It extends in the parallel direction X along the upper wall of each duct body 23. Similarly, the lower wall of the frame 81 is parallel to the other side in the parallel direction of the duct body 23 in the other parallel direction X2 from the parallel side one side wall of the duct body 23 in the most parallel direction X1 among the plurality of duct bodies 23. It extends in the parallel direction X along the lower wall of each duct body 23 to the top.

  Of the four side walls of the frame 81, the side wall in the parallel direction one X1 and the side wall in the other parallel direction X2 face each other with a gap in the parallel direction X. The side wall of the one side X1 in the parallel direction of the frame 81 extends in the partition direction Z by connecting the ends of the one side X1 in the parallel direction of the upper wall and the bottom wall of the frame 81. The side wall of the frame body 81 in the parallel direction one X1 extends along the side wall in the parallel direction of the duct body 23 in the parallel direction one X1 among the plurality of duct bodies 23. The side wall of the other side X2 in the parallel direction of the frame 81 extends in the partition direction Z by connecting the end of the other side X2 in the parallel direction of the upper wall and the lower wall of the frame 81. Further, the side wall of the other side X <b> 2 in the parallel direction of the frame body 81 extends along the other side wall in the parallel direction of the duct body 23 of the other side X <b> 2 in the parallel direction among the plurality of duct bodies 23. Thus, the frame body 81 is formed including four side walls extending along the outer edge of the total body including all the rectangular tube portions 34.

  The external resistor 80 is supported by the frame 81 so as to be separated from the outlet 36 of each duct body 23 in the orthogonal direction Y1. The external resistor 80 is formed in a plate shape extending perpendicularly to the orthogonal direction Y and closes the opening of the frame 81. Further, in the internal space of the frame body 81, the blown gas is formed to be movable in the parallel direction X. The external resistor 80 is disposed at a middle position in the orthogonal direction Y of the frame 81. As a result, even if the blown gas spreads in the parallel direction X as compared with the state where the blown gas is blown out from the blower outlet 36, it can be prevented from leaking in directions other than the orthogonal direction Y by the frame 81, and the blown gas is mixed. In the state, it can blow out from the frame 81.

  In the present embodiment, the wind direction changing member 40 is supported by the frame 81 so as to be angularly displaceable around a predetermined angular displacement axis L40. About the other structure regarding a wind direction change means, it is the same as that of 1st Embodiment. The wind direction changing means can guide the blowing gas that has passed through the external resistor 80 and change the blowing direction of the blowing gas in an arbitrary direction. The wind direction changing member 40 is disposed in the one direction Y1 orthogonal to the external resistor 80. Thus, even if the wind direction changing member 40 is angularly displaced, it is possible to prevent the wind direction changing member 40 and the external resistor 80 from interfering with each other.

  As described above, according to the present embodiment, the blown gas blown by each blowing means 22 passes through the internal space 37 of the corresponding duct body 23 and is blown out from the outlet 36. Since the air outlets 36 of the respective duct bodies 23 are arranged in the parallel direction X, respectively, the test winds proceeding in the orthogonal direction Y are generated over a wide area extending in the parallel direction X by the respective blown gases blown out from the respective duct bodies 23. be able to.

  Further, by providing an external resistor 80 that is common to each duct body 23 and promoting the mixing of the wind speed, the distribution can be improved. Specifically, the blown gas blown out from the two adjacent duct bodies 23 can be easily mixed in front of the external resistor 80. As a result, it is possible to promote the uniformization of the speed in the parallel direction X of the blown gas that has passed through the external resistor 80 and to suppress the deviation in the speed of the test wind across the parallel direction X. In this way, the test wind can be made closer to the crosswind that will be blown to the running vehicle by reducing the bias of the wind speed of the test wind caused by using the plurality of duct bodies 23, and the crosswind stability test Accuracy can be improved.

  Moreover, in this Embodiment, while providing the frame 81, while preventing the undesired leak of blowing gas, mixing of blowing gas can be performed more reliably. Further, since the wind direction changing member 40 is arranged in the one direction Y1 orthogonal to the external resistor 80, even if the wind direction changing member 40 is angularly displaced, the wind direction changing member 40 and the external resistor 80 interfere with each other. Can be prevented.

  Further, by adjusting the small opening 82 formed in the external resistor 80, it can function as the jet subdividing means 73 described above. As a result, the disappearance of the potential core blown out from the frame 81 in the orthogonal direction Y can be accelerated, and the influence of the potential core can be prevented from affecting the test wind.

  Moreover, the accuracy of the crosswind stability test can be further improved by adding at least one of the configurations of the first to third embodiments to the crosswind test device 320 of the fourth embodiment which is the present embodiment. . For example, the crosswind testing device 320 may include the external resistor 80, the partition 50 having the respective concave portions 51 and 52, and the external guide member 70.

  Further, in the present embodiment, the wind direction changing member 40 is arranged in one direction Y1 orthogonal to the external resistor 80, but the wind direction changing member 40 is arranged in the other direction Y2 orthogonal to the external resistor 80. Also good. In addition, an external resistor 80 that faces the air outlets 36 of the plurality of duct bodies 23 is provided, and the blown gas can be moved at the boundary position between the plurality of duct bodies 23 in the other direction Y2 of the external resistor 80 in the orthogonal direction. The frame body 80 may not be provided. Further, the external resistor 80 may face a part of the area without facing the entire surface of the air outlet 36 of each duct body 23. For example, the duct body 23 may be disposed only in the vicinity of the central position in the parallel direction, and the resistance coefficient of the outer portion excluding the central portion is set in comparison with the resistance coefficient set in the central portion near the central region in the parallel direction of the duct body 23 It may be small.

  FIG. 18 is a cross-sectional plan view showing a part of the cross wind fan 420 according to the fifth embodiment of the present invention. The cross wind fan 420 of the fifth embodiment of the present invention has a configuration similar to that of the cross wind fan 20 of the first embodiment. In the cross wind blower 420, the description corresponding to the cross wind blower 20 of the first embodiment is omitted, and the same reference numerals are given.

  The cross-wind blower 420 of the fifth embodiment has an internal resistor 84 and is different in that the partition 50 extends along the virtual plane 54. Other configurations are the same as those in the first embodiment. It is. Moreover, the cross wind fan 420 of 5th Embodiment should just have the internal resistor 84, and about another structure, it is any one of 1st Embodiment-4th Embodiment, or those that combined them May be the same.

  The cross wind fan 420 of the fifth embodiment has an internal resistor 84. The internal resistor 84 is disposed in the internal space 37 of the duct body 23 and serves as a resistance against the flow of the blown gas. The internal resistor 84 closes the internal space of the rectangular tube portion 34, and the edge portion is fixed by the rectangular tube portion 34. The internal resistor 84 is formed such that a plurality of small openings smaller than the air outlet 36 are arranged in at least the parallel direction X. The small opening penetrates the external resistor 80 in the orthogonal direction Y.

  Specifically, the internal resistor 84 is realized by a perforated plate or a partition plate. The perforated plate and the partition plate are formed in a plate shape to form a plurality of through holes. The perforated plate is realized by punching metal, for example. The partition plate is realized by, for example, a square mesh rectifying wire mesh. In the present embodiment, the internal resistor 84 is realized by a rectifying wire mesh. Further, in the present embodiment, the internal resistor 84 is formed in a circular arc plate shape that swells in one direction Y1 in the orthogonal direction.

  FIG. 19 is a front view showing the internal resistor 84. FIG. 20 is a front view showing a modified internal resistor 84. The resistance coefficient of the internal resistor 84 is set non-uniformly. The internal resistor 84 is formed to have a smaller resistance to the flow of the blown gas passing through the outer portion 86 than in the central portion 85. Here, the central portion 85 of the internal resistor 84 is a portion of the internal resistor 84 near the center in the parallel direction of the duct body 23. The outer portion 86 of the internal resistor 84 is a portion of the internal resistor 84 excluding the central portion 85 and is a portion near the inner surface in the parallel direction of the duct body 23.

  As shown in FIGS. 19 and 20, the internal resistor 84 is formed such that the area of the small opening 87 that penetrates the central portion 86 is smaller than the area of the small opening 88 that penetrates the outer portion 85. In other words, the internal resistor 84 is set such that the aperture ratio of the small opening set in the central portion 86 is smaller than the aperture ratio of the small opening set in the outer portion 85. The opening ratio is a value obtained by dividing the total area of the small openings by the cross-sectional area of the air outlet. As described above, the internal resistor 84 can vary the resistance coefficient of the internal resistor 84 in the parallel direction X by partially varying the aperture ratio in the parallel direction X.

  In the present embodiment, the blown gas flowing through the internal space 37 of the duct body 23 passes through the internal resistor 84. The internal resistor 84 has a smaller resistance coefficient in the outer portion 85 than in the central portion 86. As a result, as compared with the case where the internal resistor 84 is not provided, the blown gas guided to the region near the inner surface in the parallel direction of the duct body 23 increases. Thereby, the velocity deficiency of the blown gas on the inner surface in the parallel direction X of the duct body 23 can be compensated, and the deviation of the speed in the parallel direction X can be suppressed for the blown gas blown from the outlet 36 of the duct body 23.

  The small opening 87 may have a rectangular shape or a circular shape, or may have another shape. In the present embodiment, the internal resistor 84 is set so that the resistance coefficient is uniform in the partition direction Z. Therefore, the aperture ratio with respect to the partition direction Z is set to be substantially uniform for any position of the internal resistor 84.

  As described above, according to the present embodiment, the blown gas blown by each blowing means 22 passes through the internal space 37 of the corresponding duct body 23 and is blown out from the outlet 36. Since the air outlets 36 of the respective duct bodies 23 are arranged in the parallel direction X, respectively, the test winds proceeding in the orthogonal direction Y are generated over a wide area extending in the parallel direction X by the respective blown gases blown out from the respective duct bodies 23. be able to.

  Further, by providing the internal resistor 84, the velocity deficiency of the blown gas on the inner surface of the duct body 23 can be compensated, and the speed in the parallel direction X is promoted to be blown out from the air outlet 36 of the duct body 23. With respect to the blown gas, it is possible to suppress the speed deviation over the parallel direction X. As a result, the test wind can be brought closer to the cross wind that will be blown to the running vehicle, and the accuracy of the cross wind stability test can be improved.

  Further, by adjusting the small opening 82 formed in the internal resistor 84, it is possible to function as the jet subdividing means 73 described above. As a result, with respect to the orthogonal direction Y, the disappearance of the potential core blown from the outlet 36 can be accelerated, and the influence of the potential core can be prevented from affecting the test wind.

  FIG. 21 is a side view showing a modification of the internal resistor 84. In the internal resistor 84 described above, the central portion 86 and the outer portion 85 are formed by changing the aperture ratio. However, the resistance coefficient between the central portion 86 and the outer portion 85 may be changed depending on other configurations. . For example, when the internal resistor 84 is formed by stacking a plurality of perforated plates, the number of the perforated plates stacked on the central portion 86 is made larger than the number of the perforated plates stacked on the outer portion 86, thereby substantially reducing the opening. The resistance coefficient may be varied by changing the size. Accordingly, it is not necessary to prepare a plurality of types of perforated plates, and the internal resistor 84 can be configured at a low cost. Further, the resistance coefficient may be made different by changing the pipe resistance passing through the opening of the perforated plate. The internal resistor 84 may be formed so as to cover only the region near the center in the parallel direction of the duct body 23 except for the vicinity of the inner peripheral surface of the duct body 23.

  Moreover, the accuracy of the cross wind stability test can be further improved by adding at least one of the configurations of the first to fourth embodiments to the cross wind test apparatus 420 of the fifth embodiment which is the present embodiment. . For example, the crosswind test device 420 may include the internal resistor 84 and further include the partition 50 having the concave portions 51 and 52, the external guide member 70, and the jet subdividing means 73.

  FIG. 22 is a plan cross-sectional view showing a part of the cross wind fan 520 according to the sixth embodiment of the present invention. The cross wind fan 520 of the sixth embodiment of the present invention has a configuration similar to the cross wind fan 20 of the first embodiment. In the cross wind blower 520, the description corresponding to the cross wind blower 20 of the first embodiment is omitted, and the same reference numerals are given.

  The cross wind blower 520 of the sixth embodiment has an internal guide body 90, and the partition 50 is configured to extend along the virtual surface 54. Other configurations are the same as those of the first embodiment. It is. Moreover, the cross wind fan 520 of 6th Embodiment should just have the internal guide body 90, and about another structure, any one of 1st Embodiment-45th Embodiment, or those combined. May be the same.

  The cross air blower 420 of the sixth embodiment has an internal guide body 90. The internal guide body 90 is disposed in the internal space 37 of the duct body 23. The internal guide body 90 guides at least a part of the blown gas passing through the region near the center in the parallel direction of the duct body 23 to the region near the inner surface in the parallel direction of the duct body 23.

  In the present embodiment, the internal guide body 90 is realized by the rear portion 90 of the hub of the axial fan. The hub is formed in a portion that supports the impeller 30 and extends in the axial direction along the rotation axis L <b> 22 of the impeller 30. The cross-wind blower 420 is designed such that the shape of the rear portion 90 which is the Y1 side portion in the orthogonal direction of the hub guides the blown gas flowing in the region near the rotation axis L22 to the X wall surface in the parallel direction of the duct body 23. The In the present embodiment, the rear portion 90 of the hub is formed in a shape in which the corners in the parallel direction of the rectangular parallelepiped are chamfered. As a result, compared with the case where the rear portion 90 of the hub is formed in a streamline shape, the blown gas that has flowed in one direction Y1 perpendicular to the hub can reduce the flow velocity along the rotation axis L22, and the velocity distribution is not improved. Uniformity can be reduced.

  Further, the rear portion 90 of the hub is extended in one direction Y1 in the orthogonal direction. Specifically, the rear portion 90 of the hub is formed so as to extend to the connecting cylinder portion 33. Thus, the blown gas can be guided to the region near the inner periphery on both sides in the parallel direction, and the flow velocity of the wind velocity gas flowing in the region near the inner surface in the parallel direction of the duct body 23 can be improved.

  FIG. 23 is a plan cross-sectional view showing a part of a modified transverse wind blower 520a in which the rear portion 90a of the hub is deformed. FIG. 24 is a perspective view showing the rear portion 90a of the hub. The rear portion 90a of the hub may be formed in a shape other than the shape described above. For example, as shown in FIG. 23, the rear portion 90a of the hub has a guide surface 91 that moves away from the rotation axis L22 in the parallel direction X as it proceeds in the orthogonal direction Y1. By forming the guide surface 91 in this way, the blown gas can be more reliably guided to the area near the inner periphery on both sides in the parallel direction.

  As shown in FIG. 24, the rear portion 90a of the hub is formed in a tapered shape in which the dimension in the partitioning direction Z becomes thinner as the partitioning surface 92 proceeds in the orthogonal direction Y1. This prevents the flow of the blown gas in the partition direction Z from being disturbed, and the blown gas can be guided to a region near the inner periphery on both sides in the parallel direction. The rear portion 90 of the hub shown in FIG. 22 is also preferably formed in a tapered shape in which the dimension in the partition direction Z becomes thinner as it proceeds in the orthogonal direction Y1.

  FIG. 25 is a plan cross-sectional view showing a part of a cross air blower 520b that is a modification of the sixth embodiment. In the cross wind blower 520, 520a described above, the inner guide body is formed by the rear portions 90, 90a of the hub, but the inner guide body may be configured by a member different from the rear portions 90, 90a of the hub. For example, as shown in FIG. 25, the modified cross wind blower 520b forms an internal guide body by a plate-shaped guide plate 93 that is inclined with respect to the orthogonal direction Y1. At least a part of the blown gas passing through the region in the vicinity of the center of the duct body 23 in the parallel direction is guided to the region in the vicinity of the inner surface of the duct body 23 in the parallel direction by colliding with the guide plate 93. Further, an internal guide means that is an internal guide body may be realized by a configuration other than the rear portion 90, 90a of the hub or the guide plate 93.

  As described above, according to the present embodiment, the blown gas flowing in the internal space of the duct body 23 is guided to the region near the inner surface in the parallel direction of the duct body 23 by the internal guide bodies 90, 90 a, and 93. The blown gas guided to the area near the inner surface in the parallel direction increases. As a result, the velocity deficiency of the blown gas on the inner peripheral surface of the duct body 23 in the parallel direction X can be compensated, and the bias of the speed over the parallel direction X is suppressed for the blown gas blown from the outlet 36 of the duct body 23. Can do.

  As described above, in the present embodiment, the blown gas blown by each blower 22 passes through the internal space 37 of the corresponding duct body 23 and is blown out from the blowout port 36. Since the air outlets 36 of the respective duct bodies 23 are arranged in the parallel direction X, respectively, the test winds proceeding in the orthogonal direction Y are generated over a wide area extending in the parallel direction X by the respective blown gases blown out from the respective duct bodies 23. be able to.

  Further, since the internal guide bodies 90, 90a, 93 are provided, it is possible to compensate for the velocity deficiency of the blown gas on the inner peripheral surface in the parallel direction of the duct body 23, and to promote the equalization of the speed in the parallel direction X. With respect to the blown gas blown from the air outlet 36 of the body 23, the speed deviation over the parallel direction X can be suppressed. As a result, the test wind can be brought closer to the cross wind that will be blown to the running vehicle, and the accuracy of the cross wind stability test can be improved.

  Moreover, the accuracy of the cross wind stability test is further improved by adding at least one of the configurations of the first to fifth embodiments to the cross wind test apparatus 520, 520a, 520b of the sixth embodiment which is the present embodiment. can do. For example, the cross wind test device 420 may include the internal guide body 90 and further include the partition 50 having the concave portions 51 and 52, the external guide member 70, and the jet subdividing means 73.

  Each embodiment mentioned above is only the illustration of this invention, and can change a structure within the scope of the invention. For example, in this embodiment, when the first to sixth embodiments described above can be combined, they may be combined as appropriate. By combining a plurality of embodiments, it is possible to further suppress the deviation in the speed of the test wind across the parallel direction X. Moreover, even if it is 2nd-6th embodiment, the effect similar to 1st Embodiment can be acquired.

  In the present embodiment, the blowers 21 are arranged in the parallel direction X. However, the blowers 21 may be arranged in a matrix by arranging the blow airs 21 in the partition direction Z. In this case, in order to make the velocity distribution in the partition direction Z uniform, the same configuration as that in the parallel direction may be provided for the partition direction to improve the velocity distribution.

It is a plane sectional view showing a part of cross wind blower 20 which is a 1st embodiment of the present invention. It is side surface sectional drawing which shows the crosswind air blower. FIG. 3 is a plan view showing the cross air blower 20. It is a top view which shows the cross wind fan. 3 is a front view showing a part of a wind direction changing member 40 and an angular displacement driving device 41. FIG. 4 is a plan view showing a part of a wind direction changing member 40. FIG. 3 is a block diagram showing an electrical configuration of the cross air blower 20. FIG. FIG. 3 is a perspective view schematically showing a rectangular cylinder portion 34 in a duct body 23. FIG. 6 is a cross-sectional view of a part of an X1 end portion on one side in the orthogonal direction of the partition portion 50 cut along a cutting plane line perpendicular to the orthogonal direction Y. It is sectional drawing seen from the cut surface line IX-IX of FIG. It is sectional drawing which simplifies and shows the crosswind air blower 20 in order to demonstrate the flow velocity distribution of blowing air. It is a figure which shows the modification of the partition parts 50a-50c of 1st Embodiment. It is a plane sectional view showing a part of cross wind fan 120 which is a 2nd embodiment of the present invention. It is a figure which simplifies and shows the wind direction change member. It is a figure which shows the cross wind fan 120a of the modification of 2nd Embodiment. It is a plane sectional view showing a part of cross wind blower 220 which is a 3rd embodiment of the present invention. It is a plane sectional view showing a part of cross wind fan 10 of a comparative example. It is a plane sectional view showing a part of cross wind blower 320 which is a 4th embodiment of the present invention. It is a plane sectional view showing a part of cross wind blower 420 which is a 5th embodiment of the present invention. 6 is a front view showing an internal resistor 84. FIG. It is a front view which shows the internal resistor 84 of a modification.

10 is a side view showing a modified example of the internal resistor 84. FIG. It is a plane sectional view showing a part of cross wind blower 520 which is a 6th embodiment of the present invention. It is a plane sectional view showing a part of deformed cross wind blower 520a in which rear part 90a of hub is deformed. It is a perspective view which shows the rear part 90a of a hub. It is a plane sectional view showing a part of cross wind blower 520b which is a modification of a 6th embodiment. It is sectional drawing which shows a part of cross wind blower 1 of a prior art.

Explanation of symbols

20, 120, 220, 320, 420, 520 Cross-wind blower 21 Blower 22 Blower means 23 Duct body 26 Blowing gas 50 Partition 51 First concave portion 52 Second concave portion 70 External guide member 73 Jet subdividing means 80 External resistance Body 84 Internal resistor 90 Internal guide body X Parallel direction Y Orthogonal direction Z Cross direction

Claims (3)

A cross wind blower used for a cross wind stability test of a vehicle,
A plurality of blowing means capable of blowing a blowing gas;
A plurality of duct bodies that are provided for each blowing means and are formed in a cylindrical shape alongside in a predetermined parallel direction, and the blown gas blown by the corresponding blowing means is crossed in the intersecting direction. A plurality of duct bodies each formed with an outlet for blowing out,
Two duct bodies adjacent to each other in the parallel direction share a partition that partitions the first air outlet formed in one duct body in the parallel direction and the second air outlet formed in the other duct body in the parallel direction,
The partition portion has a first recess portion whose surface facing the first air outlet is recessed in the other side in the parallel direction with respect to a virtual surface extending in the partition direction perpendicular to the parallel direction and the intersecting direction, and a surface facing the second air outlet. A cross-wind blower characterized in that second concave portions that are recessed in one side in the parallel direction with respect to the virtual plane are formed alternately in the partition direction. A cross wind blower used for a cross wind stability test of a vehicle,
A plurality of blowing means capable of blowing a blowing gas;
A plurality of duct bodies that are provided for each blowing means and are formed in a cylindrical shape alongside in a predetermined parallel direction, and the blown gas blown by the corresponding blowing means is crossed in the intersecting direction. A plurality of duct bodies each formed with an outlet for blowing out;
With respect to the crossing direction, other ducts that are arranged downstream of the duct body in the flow direction of the blown gas and that are at least part of the blown gas blown out from the outlet of the duct body of interest are adjacent to the duct body of interest. A cross-wind blower characterized by comprising external guide means for guiding the blown gas blown from the body in a parallel direction. A cross wind blower used for a cross wind stability test of a vehicle,
A plurality of blowing means capable of blowing a blowing gas;
A plurality of duct bodies that are provided for each blowing means and are formed in a cylindrical shape alongside in a predetermined parallel direction, and the blown gas blown by the corresponding blowing means is crossed in the intersecting direction. A plurality of duct bodies each formed with an outlet for blowing out;
Jet subdividing means that is arranged in the outlet forming portion where the outlet is formed and has a plurality of small openings having an opening dimension in the parallel direction smaller than the opening dimension in the parallel direction of the outlet. A cross wind blower characterized by including.

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