CN104633888B

CN104633888B - Method and apparatus for passively controlling air stream

Info

Publication number: CN104633888B
Application number: CN201410637445.0A
Authority: CN
Inventors: 丹尼斯·R·迪茨; 约翰·罗伯特·哈勒尔; 德怀特·蕾·沙克尔福德
Original assignee: American Aldes Ventilation Corp
Current assignee: American Aldes Ventilation Corp
Priority date: 2013-11-08
Filing date: 2014-11-06
Publication date: 2019-11-19
Anticipated expiration: 2034-11-06
Also published as: CN104633888A

Abstract

Show a kind of system and method, be used to provide the exhaust of substantial constant volume perhaps vent air terminal system for controlling exhaust and/or returning air flow velocity rate in the system with central fan or ventilation blower.System and method permission carrys out section district by district as needed in non-demand region or region-by-region carries out air stream regulation or control or ventilation is required in demand region.In one embodiment, the system uses at least one constant air stream controllers or adjuster for being located in air throttle.In one embodiment, terminal device encompasses multiple sub-pipes, each has airflow modifier.At least one sub-pipes has air throttle.When the air throttle is opened, the maximum air flow across the terminal device is the sum of permitted maximum air flow of the adjuster.

Description

Method and apparatus for passively controlling air stream

The related application of cross reference

The application is that the part of the US Pat Appl Ser No.12/783826 submitted on May 20th, 2010 is continued, It is the US Pat Appl Ser No.11/318682 submitted on December 27th, 2005, is used as United States Patent (USP) No.7766734 now The division of announcement, applicant require the equity of its submitting day earlier.

Technical field

1. invention field

The present invention relates to a kind of methods and apparatus for controlling air stream, and more particularly to a kind of method and set It is standby, it is used to control the central discharge air of fan auxiliary and/or the air distribution in returning air ventilating system.

Background technique

2. related fields explanation

Be commonly used for from building or structure for example bathroom, public lavatory, family kitchen, office region and other areas The central ventilated fan and ventilation blower that air purpose is removed or be discharged in domain, will be simultaneously from being connected in this when fan is run Air is removed in fixation entrance terminal device on the draught fan of centre.No matter the fan is intermittent duty or continuous operation, only Simply because one or more of regions never need to remove heating in the space of ventilation and be adjusted there is ventilation requirement Air, as a result, which results in additional energy consumptions.

Pervious effort is to be restricted to central fan or ventilating system by opening and closing terminal device It only divulges information to using area, which results in the fluctuations of air pressure in pipeline, and have eventually led to and removed or be transmitted to one Or the variation of multiple regions or the air capacity of section.Which results in rate of venting excessive in some regions and it is excessive with can and The improper ventilation in other regions successively results in the problem of the indoor air quality correlation of difference and cannot expire in some cases The smallest building code calls of foot.

Central fan speed or revolving speed per minute (RPM) are controlled to prevent the ventilation in partition system excessive or logical The bad problem of wind is difficult, expensive, and is usually inefficient in the past.Typical control method for fan includes monitoring master The number of pipeline pressure or open area, to determine required air stream total amount.But, however it remains the problem of be to control The air stream of whole system cannot ensure correct and/or constant air mass flow at each region lateral.

In addition, the rate of air stream is by using variable at each region or lateral in control air supply system Volume of air (VAV) terminal device is completed.These VAV terminal devices are designed to change air stream rate, to respond temperature Degree needs.Although VAV terminal device has air flow control in the ability of constant level, they have typically used electricity Dynamic or air control unit, has monitored the region air throttle that difference is sent to across the pipeline pressure of conduit and by signal.This Power source that a little control devices need to distinguish, part respectively, and on being directly connected to solar term valve actuator etc., to allow to ring Answering property subregion air flow control.If the VAV control device runs out of steam, it will also lose the ability of its control air stream.

So it is desirable that a kind of system and method, the central discharge air system and/or return for controlling fan auxiliary are empty Air distribution in gas ventilating system the two, is conducive to overcome the problems, such as the one or more of the prior art.

Summary of the invention

So the target of one embodiment of this invention is to provide a kind of ventilation terminal device system and device, there is collection At main region control air throttle, regulated and controled air stream, with responding to switch, dehumidifier, optical sensor, action sensor, CO²Sensor etc..

One target of another embodiment is to provide a kind of ventilation terminal device and system, with pressure independence Flow control apparatus, be integrated into main flow control, can be air throttle in one embodiment.

Another target of another embodiment of the present invention is to provide a kind of flow control apparatus and system, becomes being exposed to When the pipeline pressure of change, by air stream regulation to a substantially constant level.

The yet another object of another embodiment of the present invention is to provide a kind of flow control apparatus and system, as master Control device work is come when permitting air to flow to scheduled desired level, machinery is removed from air stream.

The yet another object of another embodiment of the present invention is to provide a kind of control device, for being placed in air stream In by air stream regulate and control or control arrive substantially constant or scheduled maximum rate.

The yet another object of another embodiment is to provide a kind of system and method, with first control device, It is by flow control or regulation to the first substantial constant or scheduled rate, while another volume control device is by flow Control regulates and controls to the second scheduled horizontal or rate.

The yet another object of another embodiment of the present invention is to provide at least one or multiple flow control apparatus, It does not need direct electric or pneumatic power source, but only regulates and controls to arrive respectively by air stream using only system pipeline pressure First and/or second scheduled level.

The yet another object of another embodiment of the present invention is to provide Minimum Flow Control device, in main flow control Device processed cannot start allow to increase air stream or it run out of steam when by continuous service.

The yet another object of another embodiment of the present invention is to provide a kind of Ventilation Control component and system, can It is easy maintenance and/or is removed from terminal device shell, appointed without be connected thereto the terminal device and the component What pipeline or ventilation axle of motor separation.

The yet another object of another embodiment of the present invention is to provide a kind of system, sufficiently small to be installed to floor And/or between ceiling structure, such as by the 16 " components that supercentral nominal 10 " joist is constituted.

The yet another object of another embodiment of the present invention is to provide a kind of component, and it uses by 120 volts, 24 Volt, 12 volts or 220 volts of AC or the air throttle driving motor of other suitable supply voltage energy supplies.

The yet another object of another embodiment of the present invention is to provide a kind of device, reduces or eliminates and is described The needs of type periodic maintenance, this is required for past mechanical or electric system.

The yet another object of another embodiment of the present invention is to provide a kind of device, can readily be mounted on a little In fiery or specified non-ignition ceiling or wall component.

The yet another object of another embodiment of the present invention is to provide a kind of device, will reduce required central wind It fans horsepower demand and is beneficial to through fan whole in the reduction system or ventilation blower demand come energy saving.

On the one hand, a kind of embodiment of the invention includes that a kind of region controls exhaust terminal equipment, and it includes have The shell of the first opening being connected on pipeline and the second opening being connected with to aerated area, the shell is by air stream along pre- Determine path and be directed to outlet from entrance, and is hinged to the shell to control the air between the region and fan or ventilation blower The air throttle of stream is used for air throttle in closed position (air throttle becomes to be located at predefined paths here) and open position (air throttle allows the air stream along predefined paths here) driving, to respond the engine of engine control signal and be located at Airflow modifier in the predefined paths, the airflow modifier have regulated and controled when air throttle is in the closed position along predetermined The air stream in path.

On the other hand, another embodiment of the present invention includes that a kind of region controls ventilating system, multiple for having To which in the building of aerated area, which, for generating the fan unit of air stream, is connected at least one comprising at least one Multiple pipelines of a fan unit；Multiple regions control exhaust terminal equipment, are connected respectively to the every of multiple pipelines On a, and each relating operation with multiple regions, multiple region control exhaust terminal equipment each includes to have connection To pipeline entrance and with the shell of the multiple outlet being connected to aerated area of at least one, air throttle is pivotally connected to The air throttle of the shell, response engine control signal come that (here, air throttle allows at least in closed position and open position Air stream between one fan unit and the multiple regions of at least one, and enter to be divulged information more described at least one A region) between drive the engine of air throttle, and the airflow modifier in air flow path, the airflow modifier For regulating and controlling the air stream rate along room and the air flow path between at least one fan unit.

On the other hand, another embodiment of the present invention is kept in the ventilating system with multiple pipelines comprising a kind of The method of substantial constant air stream, this method include that step passively regulates and controls the sky in first rate across multiple pipeline Air-flow, and make air stream with the second rate pass through multiple pipeline at least one, to respond desired signal, also cross it The air stream continuation of his multiple pipelines is flowed with first rate.

In still further aspect, another embodiment of the present invention includes a kind of for controlling across being connected to ventilation blower On multiple pipelines air stream method, it includes step allow air stream passed through at an essentially constant rate from ventilation blower At least one multiple pipeline and the rate for allowing air stream to need pass through at least one multiple pipeline to certain area Domain, which is greater than the substantially constant rate, to respond desired signal.

In still further aspect, another embodiment of the present invention includes that a kind of regulation of offer region-by-region air stream will Air stream regulates and controls the method to substantially constant level, passes through it includes step and (does not need to divulge information here with the region Air stream) connected multiple terminal devices air flow control in first rate substantially constant, and need sky of divulging information wherein The region of air-flow passes through the air flow control of the terminal device in the second rate (it is higher than the first rate), with What response air stream needed needs rate.

In still further aspect, another embodiment of the present invention is to provide a kind of for regulating and controlling to building with fan The method for building the air stream of the multiple regions of object, it includes steps to transport each association of master selector and the multiple regions Row arrangement regulates and controls the air stream between each multiple regions and the fan, and by least one constant air flow Adjuster and each master selector relating operation are arranged, to regulate and control each multiple regions and the fan Between air stream so that when the master selector allows need of one of described multiple regions between the fan Air stream is sought, at least one described constant air throttle regulator controls or regulated and controled air stream, so that more described in obtaining The air stream at least other regions in a region is substantially invariable.

In still further aspect, another embodiment of the present invention is to provide a kind of each of multiple regions in structure In, by the method for air stream regulation to substantially constant level, the structure includes air flow generator and at least one pipe Road, for passing through flow communication, and the side between each multiple regions and the air flow generator Method includes that step makes sky in any region air stream of needs level (need exist for be purportedly) of the multiple regions Air-flow reaches the level of needs, and other regions of the multiple regions (are needed not be at the level of needs here Air stream) in air stream regulation to substantially constant level.

In still further aspect, another embodiment of the present invention includes a kind of system, for regulating and controlling to have multiple areas Air stream in the structure in domain, and the system includes air flow generator and multiple terminal devices is and described more Each of a region is respectively connected with, and the air flow generator is connected to the pipe of each multiple terminal devices Road is connected respectively to multiple master selectors in the multiple terminal devices (for so that in one of described multiple regions Air stream be in the level needed, to respond demand) and between each of being located at the multiple regions multiple the One constant air throttle regulator, and the air flow generator is multiple by the air flow generator and those others Air stream between region (not needing demand air stream here) regulates and controls to the first scheduled level.

On the other hand, another embodiment includes motion valve assemblage, is used for ventilating system, which sends out with air stream Raw device, the terminal device being connected with to aerated area, and for air flow generator to be connected to the pipeline on terminal device, it should Motion valve assemblage includes: carrier, the air throttle being pivotally connected on a carrier, be installed on carrier in closed position and Drive the engine of the air throttle between open position, and the motion valve assemblage is separable fixation, and can be from The system removes, without decomposing or dismantling the pipeline or terminal device.

In still further aspect, another embodiment of the present invention includes a kind of region control for air distribution system Terminal device processed, the region controlling terminal equipment include to be hinged to the shell for receiving the entrance and exit of air stream The shell and the air throttle between entrance and exit, for driving the air throttle between open and closed positions Engine, at least one the first airflow modifier (its not with the air throttle arranged in series), at least one second air stream tune It saves device (itself and the air throttle arranged in series), wherein when air throttle is in the closed position, at least one first air stream tune It saves device control or the air stream of predetermined minimum amount is allowed to pass through shell, and when air throttle is in an open position, this is at least One the second airflow modifier cooperates with to control or allow scheduled maximum at least one first airflow modifier Air stream pass through the shell, the scheduled the maximum amount of air stream across the region controlling terminal equipment be at least one first The maximum air flow rate of airflow modifier and the sum of the maximum air flow rate of at least one the second airflow modifier.

In still further aspect, another embodiment of the present invention includes a kind of system, for regulating and controlling to have multiple areas Air stream in the structure in domain, the system include the multiple terminal devices being connected respectively at each of multiple region, and being used for will Air flow generator is connected at least one pipeline in each of multiple terminal devices, and multiple terminal device each includes tool There is the shell of the entrance and exit for receiving air stream, be hinged to the shell and the air throttle between entrance and exit, For driving the engine of the air throttle between open and closed positions, which needs, and is located at The first airflow modifier of at least one of each of multiple terminal device, with air throttle arranged in series at least one Two airflow modifiers, wherein at least one first airflow modifier control or allow the first predetermined amount air stream and The air throttle and at least one second airflow modifier cooperate at air throttle at least one first airflow modifier It is controlled when open position or the air stream of the second predetermined amount is allowed to pass through the shell, the air stream of second predetermined amount passes through Multiple terminal device, the air stream of second predetermined amount are the maximum air flow rates of at least one the first airflow modifier The sum of with the maximum air flow rate of at least one the second airflow modifier.

On the other hand, another embodiment of the present invention includes a kind of region in the structure with multiple regions Control system, the area control system include the multiple terminal devices being connected respectively with each of multiple region, multiple end End equipment be used to receive the air stream from air flow generator, and multiple terminal device each includes to have for receiving sky The shell of the entrance and exit of air-flow is hinged to the shell and the air throttle between entrance and exit, in open position The engine that the air throttle is driven between closed position is set, which needs, at least with air throttle parallel arrangement One the first airflow modifier, at least one second airflow modifier with air throttle arranged in series, wherein working as air throttle When in the closed position, which allows air stream to be in the first scheduled level, He Dangjie When air valve is in an open position, which cooperates with at least one second airflow modifier comes Air stream is allowed to be in the second scheduled level.

These are illustrative targets.Other targets and advantage of the invention will be from following specification, attached drawing and additional Claim and become apparent.

Detailed description of the invention

Fig. 1 is a perspective view, which show a kind of embodiment of the invention, illustrates that the wind for having the axis of centres will be combined Fan or ventilation blower are combined with one or more terminal devices to use, the terminal device and region or section each to be divulged information It is connected；

Fig. 2 is the fragment figure of another embodiment of the present invention, which show a kind of system, the system uses ventilation blower with The one or more terminal devices being combined；

Fig. 3 is a kind of fragment figure of the variable ventilation fan or exhaust system of embodiment according to the present invention；

Fig. 4 is a kind of enlarged drawing of embodiment, which show shell, ventilation shaft and multiple constant air controllers or Person's adjuster etc.；

Fig. 5 is segment and sectional view, and which show the different features of embodiment shown in Fig. 4, also shows solar term There is valve the hole for receiving air flow controller perhaps adjuster to also show in air flow controller or adjuster Air throttle after being received in hole in shade, and the air throttle is by by engine driving to opening Position and start；

Fig. 6 is the assembling figure of embodiment shown in Figure 4 and 5；

Fig. 7 A-7B shows a kind of embodiment of the invention, also shows the air of each pipeline relative to shown in Stream, multiple air streams are to pressure difference characteristic curve；

Fig. 8 A-8B is the figure of another embodiment of the present invention, which show be located at air throttle in air flow controller or Person's adjuster and correlation curve, but all do not arrange air flow controller or adjuster in any pipeline；

Fig. 9 A-9B shows another embodiment of the present invention, which show with the identical of multiple solid air throttles, Each connected constant air stream controller or adjuster comprising being located in the pipeline being connected with each air throttle；

Figure 10 A-10B shows the constant air throttle regulator of the prior art and the spherical controller or tune of the prior art Save the different characteristic curves of device (Figure 10 A) and casement (va in-type) controller or adjuster (Figure 10 B)；

Figure 11 shows the purposes of the terminal device of type shown in the Figure 4 and 5 being mounted on central compressed axis, and further Show pressure of the open pipe being connected with terminal device shell aperture into the axis of centres；

Figure 12 A-12B shows another embodiment of the present invention, here primary and secondary grade and three class control or adjuster The various combination of feature can be used in different combinations, and embodiment shown in Figure 12 A-12B is representative example； Figure 13 A-13D shows another embodiment, and which show multiple sub-pipes in terminal device, with sub-pipes and often The connected air throttle of one of at least one airflow modifier in a sub-pipes.

Specific embodiment

Referring now to Fig. 1-3, a kind of region control ventilating system or passive flow system 10 are used for building In 12, for example, multilayer commercial building (Fig. 1), multilayer condominium or apratment building (Fig. 2), residential architecture (Fig. 3).The system 10 mentions A kind of system, apparatus and method are supplied, for being that multiple sections or region 14 are provided in required air stream in a manner of aftermentioned The required air stream of rate and passive air stream in passive air stream rate.

The system 10 includes that at least one fan 16 (Fig. 1 and 3) or system 10 may include ventilation blower 17, such as one A or multiple more mouthfuls of ventilation blower series (" MPV "), range of models MPV ventilation blower, by being located at Sarasota, the 4521 the of Fla The American Aides Ventilation Corporation of 19 block E. is provided.It should be understood that other suitable ventilations Machine or fan also can be used, and the present invention is not restricted to these specific model type.

System 10 further includes multiple pipelines 18, is directly connected at least one fan 16 or ventilation blower 17, As shown in Figures 2 and 3, it is either connected on the main ventilation pipeline or axis 20 being connected at least one fan 16 or ventilation blower 17 (Fig. 1 and 11).Multiple pipeline 18 is each connected at least one or multiple regions control exhaust terminal equipment 22, until Few one is and 14 relating operation of each region to be divulged information.Although embodiment shown in Fig. 1-3 is shown and each area The connected single region in domain 14 controls exhaust terminal equipment 22 it should be appreciated that multiple region greater than one controls exhaust Terminal device 22 can be connected with each region 14.Although it is not shown, the building, structure, dwelling or building Each region or section 14 in 12 are not necessarily to multiple regions control exhaust terminal equipment 22 described in one or more, Although in a preferred embodiment, the multiple region control exhaust terminal equipment 22 of at least one is and each region 14 be connected.

Equally, although figure shown in Fig. 2, which is shown, is directly connected to each multiple region control row via pipeline 18 More mouthfuls of ventilation blowers 17 on gas terminal device 22, but region control exhaust terminal equipment 22 also can be directly connected to main lead to It on wind axis 20 or main pipe such as pipeline 18 (Fig. 1), is extended from main ventilation axis 20.It is selectable, such as Figure 11 institute Show, terminal device 22 can be located in the axis, have open duct extensions or flange 30, in a kind of embodiment In be at least 22 inches.It should be noted that the duct extensions or flange 30 have the end being connected on terminal device 22 The 30a and interior zone 20c for axis 20 open end 30b.It should be understood that the interior zone 20c of axis 20 is with interior Pressure is generated or is provided by least one fan 16 or ventilation blower 17.

With reference to Fig. 4-6, the different details of one of multiple regions control exhaust terminal equipment 22 will now be described.It should be understood that every A multiple vent regions terminal device 22 includes essentially identical part, although they are not necessarily identical with each other, such as hereafter will As apparent.Each region control exhaust terminal equipment 22 includes box-shaped casing 24, with multiple flanges 26 With 28.Flange 26 and 28 provides the means being installed to shell 24 in structure, such as is installed to the ceiling or room of building 12 The supercentral adjacent 10 " joist in 16 " either 22 " in top is adjacent perhaps between framework or in the wall 29 of building 12 Between wall bone (not shown) (Fig. 1), or (Figure 11) is installed on the wall 23 of axis 20.

As shown in figs. 4 and 6, shell 24 is usually rectangle, and includes duct extensions or flange 30, is used for shell 24 are connected on pipeline 18 and for communicating with the opening 32 entered in region 34 defined by shell 24.Pipeline flanges 30 are usual It is connected on pipeline 18, as shown in Figure 6.But as previously mentioned, terminal device 22 can be installed on axis 20, and The end 30b of pipeline flanges 30 can interior zone 20c to the axis of centres 20 it is open.Shell 24 further includes grid or lid Son 36, the second opening 38 for covering shell 24.Second opening 38 is connected or communicates with region or section 14.

System 10 further includes air throttle valve or motion valve assemblage 40, related to Fig. 5 will describe now.Group Part 40 includes generally U-shaped in cross-section element or carrier 42, has the L bracket 44 being welded or fixed to thereon.Hole 46 and 48 Typical load and reception drive shaft 50, are attached to and are driven by 52 pivot of engine, and the operation of engine 52 is connected to out It closes on 54, as shown.Switch 54 can be for example on wall, such as the wall switch on the wall 29 of Fig. 1, with 14 phase of region Even.When the into or out region 14 of user, switch 54 can be the manual wall switch or engine 52 started by user Can connect and respond following at least one: action sensor manually controls, time controller, optical sensor, position sensing Device, CO²Sensor or existing other indicators or sensor.

The generally u-shaped element or carrier 42 are contained in the region 34 of shell 24 (Fig. 4), and with multiple screws 56 It is fixed between shell wall 24a and 24b, as shown.It should be noted that component 40 further includes main trafficdirector, It is air throttle 58 in diagram, is fixed to by welding, screw or other suitable means in the drive shaft 50 of engine 52. Air throttle 58 be it is shaft-driven by 52 pivot of engine, start switch 54 to respond user, such as from the closed to open position It sets.It should be understood that engine 52 is that operation is connected on power source, it is AC power source (not shown) in one embodiment, Such as 12V, 24V, 120V or 220VAC, but DC power source also can be used.When switch 54 starts to open position by user When, engine 52 is provided energy, and pivot drives air throttle 58 from the closed to open position, such as the shade institute of Fig. 5 Show.

It should be noted that air throttle 58 is that the operation of opening 32 in surface 24c with shell 24 is connected and is adjacently positioned (Fig. 4).First side 58a of air throttle 58 may include the foam or other sealing materials being fixed to the upper by binder, Come when air throttle 58 is in closed position shown in fig. 6, the surface 24c by air throttle relative to shell 24 is sealed.It is noted that Be component 40 include spring or multiple springs 70, act on the engaging portion 42b of generally u-shaped element or carrier 42 on Air throttle 58 is perhaps pushed up or is biased in the side of the arrow A of Fig. 5 on the 58b of surface by the flat elements of air throttle 58, So that being biasing in the closed position shown in Fig. 6 of air throttle 58.Engine 52 is within any required period by air throttle 58 are maintained on open position, are the periods that engine 52 works.

In a kind of embodiment shown in Fig. 4,5 and the 9A-9B, component 40 can further include switch 62, installation Onto the flat site of generally u-shaped bracket 42 shown in Figure 4 and 5 or ledge 42c.The operation of switch 62 is connected at least one row On air fan 16 or ventilation blower 17, so that when air throttle 58 starts from closed position shown in fig. 6 or drives to open position When setting (in Fig. 5 shown in shade), the first side 58a of air throttle 58 starts the lever or switch that are connected on power source (not shown) 62.When switch 62 triggers, scavenger fan 16 perhaps ventilation blower 17 become energy response thus cause pipeline 18 or axis 20 In air increase.When air throttle 58 returns to closed position, such as when switch 54 is moved to closed position by user, Fig. 9 A Closed position is driven or started to the air throttle 58 in embodiment shown in 9B to close opening 32 and release switch 62, is come At least one fan 16 or ventilation blower 17 is caused to be closed.

One feature and advantage of this design shown in Fig. 4-5 are that it is easy to carry out component 40 maintenance or in its peace It is removed after dress, may require that a large amount of maintenance although not believing that.

Return to Fig. 9 A-9B, it is shown that a kind of embodiment, here ventilation blower 17 or at least one fan 16 only when with Connection when family starts switch 54 to open position.On the contrary, hereafter embodiment shown in Fig. 7 A-7B and Fig. 8 A-8B does not have Have using switch 62 and starts at least one fan 16 or ventilation blower 17.In these embodiments, at least one fan 16 Either ventilation blower 17 provides constant air flow in pipeline 18,19 or axis 20.But when the air throttle 58 in system 10 exists When opening in these illustrative embodiments, at least one fan 16 or ventilation blower 17 reduce or increase to pipe-line system resistance Add the demand of air stream to respond, and fan or ventilation blower speed is caused to increase automatically, thus with response and usually The mode known results in the increase of air stream in axis 20 and pipeline 18.

Referring to fig. 4-6, component 40 further include at least one or multiple airflow modifiers 71 and 73 (Fig. 6) and/ Or 72 and 74 (Fig. 1-5).In one embodiment, airflow modifier 71 and 73 is that integrated constant dynamic air stream is adjusted Device, such as constant air throttle regulator CAR I and CAR II are obtained from America Ai Dishi ventilation equipment company, Florida 34234-2124, Sarasota, north gate 4537 (American Aldes Ventilation Corporation, 4537Northgate Court, Sarasota, Fla.34234-2124).As shown in Figures 4 and 5, it is noted that air throttle 58 Comprising the hole as defined by interior zone or opening 59, as shown.The diameter of the inner wall 58d of air throttle 58 is sized to connect Airflow modifier 72 is received, as shown.As shown, spherical type constant air throttle regulator, such as Fig. 6 institute can be used Those of show adjuster 71 and 73, and they are obtained also from America Ai Dishi ventilation equipment company (American Aldes Ventilation Corporation)。

It should be understood that constant air throttle regulator 72 and 74 may include different specifications in preferred embodiments, and And they both provide constant air stream regulation.Such as constant air throttle regulator 72 and 74 provides perseverance by blade 72a Fixed air stream regulates and controls (Fig. 4), is used to come in a generally known manner 59 (Fig. 5) of at least part of closing opening.On the contrary, permanent Determine airflow modifier 71 and 73 (Fig. 6) to provide by the expansion of constant air throttle regulator ball 71a and 73a respectively Constant air stream regulation, and in a generally known manner.As shown in Figure 6, it is noted that ball 71a and 73a are usually sand Leak shape.When the static pressure in pipeline 18 increases, the static pressure around ball 71a and 73a increases, and ball 71a and 73a is thus caused to expand And thus reduce the area around ball 71a and 73a.Substantially at the same time, it is empty when the static pressure around ball 71a and 73a increases Gas velocity degree also increases, and thereby produces constant air stream.Constant air throttle regulator 71,72,73 and 74 thus provides logical Normal or substantially constant air stream, the pressure difference in guard system 10 is not how.Figure 10 A and 10B illustrate air stream adjusting The operation characteristic of device 71,72,73 and 74.It should be understood that depending on the selected specification of user, relevant specification will change.System 10 operation will describe now relative to several examples shown in Fig. 7 A-9B.The embodiment party of Fig. 7 A-7B for ease of explanation, Case will be shown or be used in the embodiment of Fig. 1, and Fig. 8 A-8B illustrates used in the embodiment of such as Fig. 2 and Fig. 9 A- 9B illustrates used in the embodiment of such as Fig. 3.

In the embodiment shown in Fig. 7 A-9B, air throttle 58 provides main air flow regulation or control.Air throttle 58 It is to be applied in combination with the first or second adjuster 72 or 74 of at least one, as shown in Fig. 7 A-9B.In Fig. 9 A-9B institute In the embodiment shown, constant air throttle regulator 74 allows the air stream of predetermined amount and provides scheduled or maximum The substantial constant air stream of air stream rate regulates and controls.On the contrary, airflow modifier 72 provides in the signal of Fig. 8 A-8B Regulate and control in the substantial constant air stream of the air stream of predetermined amount or minimum.When adjuster 72 and 74 as illustrated in figures 7 a-b When being used together, air stream is controlled respectively or is regulated and controled both horizontal to minimum and maximum by they, and air throttle 58 is by air Flow control regulates and controls to main to need level, such as responds desired signal from the user, provides for room increased logical Air flow horizontal needed for wind.

Typical air stream is the figure under each terminal device 22 by Fig. 7 A-9B to pressure difference characteristic to illustrate. It should be understood that the air stream rate of minimum and maximum air stream rate will be respectively depending on selected airflow modifier 71,72,73 and 74 size and specification.User will depend on the selection of constant air throttle regulator 71-74 appropriate System 10 is used for environment therein or application.In a kind of illustrative embodiment shown in Fig. 7 A-7B, minimum air flow rate It may be at the magnitude of at least 10 cubic feet/mins (" CFM "), and the maximum amount of air stream rate can be less than or equal to About 400 cubic feet per minutes, but this will be different according to the application.

Return to Fig. 5, it is noted that when air throttle 58 is in closed position shown in fig. 6, air throttle 58 includes to be located at Generally rounded flat elements 58b on first plane P1.The wall of flat elements 58b is contained in constant air throttle regulator 72 When in opening 59 defined by 58d (Fig. 4), which is located in the first plane P1 or is directly in stream Enter in the air flow path of the air in the opening 32 of shell 24 (Fig. 4).When air throttle 58 is in close stance shown in Figures 5 and 6 When setting, which, which regulates and controls air stream, allows or control, arrives constant rate of speed, which is to pass through user The specification of selected constant air throttle regulator 72 indicates.It is therefore understood that when air throttle 58 is opened from closed position When moving to open position (shade of such as Fig. 5 and Fig. 7 A-7B and 8A-8B diagrammatically shown), airflow modifier 72 is by from air It removes, is thus removed from opening 32 and from the air flow path between section or region 14 and pipeline 18 minimum in flow path Or constant airflow modifier.

It should be understood that one of constant air throttle regulator 72 and 74 or two can be used with different combination, such as it is existing In the illustrative combination that will be described about Fig. 7 A-9B.It will be appreciated that be easy to indicate, the diagram of Fig. 7 A-9B show from The motion valve assemblage 40 (Fig. 4) removed in shell 24 and generally u-shaped element or carrier 42.

In the embodiment shown in Fig. 7 A-7B, constant air throttle regulator 72 is located at and each section or region 14 In connected each air throttle 58.Constant air throttle regulator 74 is located in each pipeline 18, as shown.Fig. 7 A-7B's In diagram, fan 16 is with the first fan speed continuous operation, to provide the constant draft air stream of first rate.Such as Fig. 7 A institute Show, when air is from 14 flow ipe 18 of section or region, which flows through constant air flow adjuster 72 and constant air flow Both adjusters 74.When the discharge air from fan 16 is for example pushed from each section or region 14 across pipeline 18 When, constant air throttle regulator 72 is provided to the first scheduled or minimum level constant air flow regulation.When requiring or When person needs to increase the ventilation in far field 14, such as when the user in a region 14 starts switch 54 to open position (as schemed Shown in 7B), need the air throttle 58 in region 14 by the driving of engine 52 to open position.Fan 16 perceives the demand, and Speed is increased into the second fan speed.Air throttle 58 in other far fields 14 maintains the closed position, and as shown in Figure 7 B two Shown in leftmost airflow modifier 72.These adjusters 72 are provided to the first scheduled or minimum level constant sky Gas flow optimized or regulation are indicated by the specification of those constant air throttle regulators 72.It should be noted that increasing It is partially enclosed (as shown in Figure 7 B) that blade 72a (Fig. 4) is resulted in across the air stream of those constant air throttle regulators 72, thus Air flow control or regulation are arrived into desired rate.Substantially simultaneously, it is noted that in Fig. 7 B of right hand portion, air throttle Constant air throttle regulator 72 in 58 has been started up to open position and removes from air flow path, thus allow increase from Region 14 into and through pipeline 18 air stream, it is as shown.Second constant air throttle regulator 74 by air flow control or Person's regulation is to the second scheduled maximum horizontal, and the constant air throttle regulator 72 being connected with other sections or region 14 is by air Flow control or regulation are to first or minimum level.

Therefore, the system 10 in the embodiment of Fig. 7 A-7B provides means, is used for non-required region or section 14 In air stream regulation or control to the first scheduled or minimal flow rate, and needing the need in section or region 14 Want to regulate and control during period to the first scheduled or minimum-rate and second be scheduled or maximum rate between.In other words, Constant air throttle regulator 72 in Fig. 7 A-7B is conducive to pass through the air flow control of each pipeline 18 or regulation is arrived substantially Upper constant scheduled or minimum-rate.The ventilation in region 14 (needing exist for increasing ventilation) is needed to need at those interim, Such as when user starts switch 54, air throttle 58 is had been started up to open position.As shown in Fig. 7 B rightmost component, at least one Perhaps 17 response pressure of ventilation blower reduces a fan 16 and fan speed increase causes air stream with speed that are increased or needing Rate increases, and responds thereto.Increase and pass through pipe which results in the ventilation from region 14 (needing exist for increased ventilation) Road 18, and eventually arrive at the exhaust pipe 19 being connected with building 12.Substantially simultaneously, two leftmost pipelines (when When from left to right observing in figure 7b) in the regulation of constant air throttle regulator 72 and control the air stream across pipeline 18, With therefore air stream with high to minimum air flow rate (it is indicated by selected constant air throttle regulator 72) Substantially invariable rate come it is lasting.Air stream in system 10 be by adjuster 72 and 74 each under figure illustrate 's.

When the air throttle 58 in Fig. 7 A-7B is closed, constant air throttle regulator 72 or 74 (it is with minimum maximum Air traffic specification) maximum air flow is limited or regulates and controls to arrive the specification.For example, if the constant air throttle regulator in Fig. 7 A 72 allow maximum 10 cubic feet per minutes, and constant air throttle regulator 74 allows 50 cubic feet per minute of maximum air flow Clock, then when air throttle 58 is in the closed position, in the figure shown in Fig. 7 A, air stream will be adjusted to 10 cubic feet per minutes Clock.When one of air throttle 58 in system 10 is opened, constant air throttle regulator 72 on the air throttle is mounted on by from sky Air flow path removes the air stream for going to and thus allowing in opening 32 (Fig. 4) greater than 10 cubic feet per minutes.When fan 16 or When ventilation blower 17 causes air stream to increase, the air stream regulation that adjuster 74 passes through pipeline 18 arrives aforementioned maximum to height 50 cubic feet per minute rates.Air stream to pressure characteristic be by figure relevant to air throttle 58 shown in Fig. 7 A-7B come Diagram.

Referring back to Fig. 9 A and 9B, it is shown that another illustrative embodiment.In such an implementation, 74, adjuster In pipeline 18, but adjuster 72 is not in air throttle 58.In such an implementation, air throttle 58 and wall 58d are solid , and adjuster 74 is only used only.During normal operation, when not requiring or needing to divulge information or be vented, such as permit Perhaps air throttle 58 is solid, maintains the closed position and be not passed through the ventilation of pipeline 18.Fan 16 or ventilation blower 17 provide Air stream or opening, to respond user start switch 54, cause engine 52 and drive air throttle 58 from closed position It moves to open position.When requiring or needing to be vented, user start switch 54 and air throttle 58 start switch 62 (such as preceding institute State) open fan 16 or ventilation blower 17, air stream is increased to the rate of needs.In such an implementation, Fig. 9 B Shown in air stream in two leftmost pipelines continue to and closed by solid air throttle 58.The opening section of the rightmost of Fig. 9 B Air valve 58 is open, but air flow control or regulation are arrived the above-mentioned second scheduled or maximum speed by adjuster 74 Rate.Figure related with air throttle 58 shows the airflow ratio pressure difference of this embodiment.

Fig. 8 A and 8B show an alternate embodiment.In this illustration, constant air throttle regulator 74 from It is removed in system 10.When air throttle 58 is in the closed position, adjuster 72 allows access into the minimal flow rate of pipeline 18.When When one air throttle 58 is driven by engine 52 to open position, as shown in the air throttle 58 of rightmost in Fig. 8 B, then with this The air stream for allowing not regulate and control in the connected pipeline 18 of open air throttle 58.Constant air flow tune in other air throttles 58 Section device 72 provides air flow control and regulation to the first scheduled or minimum level, if the air stream in Fig. 8 A and 8B is to pressure Shown in trying hard to.

By the embodiment of Fig. 7 A and 7B compared with the embodiment of Fig. 8 A and 8B, it is noted that with rightmost shown in Fig. 7 B The connected constant air throttle regulator 72 of pipeline 18 by empty from the guidance between the section or region 14 for entering pipeline 18 It is removed in air flow path, thus allows to increase the air stream across pipeline 18.The second constant air throttle regulator 74 in Fig. 7 B The maximum amount of air stream for passing through pipeline 18 is limited to the second predetermined amount or maximum rate, is by the constant air flow tune It saves as defined in device 74.Substantially simultaneously, in region or section 14 (not needing to divulge information here) with two Far Left pipelines 18 (such as Seen in Fig. 7 B) connected constant air throttle regulator 72 continues the amount of air stream being restricted to minimum level amount.In this regard, It should be noted that the blade 72a being connected with two leftmost pipelines is slightly closed, air stream is thus restricted to those The specification of constant air throttle regulator 72.

On the contrary, the embodiment in Fig. 8 A and 8B does not use adjuster 74.So flowing into and through of not regulating and controlling of air In the pipeline 18 for needing the region divulged information or being connected in section 14 with air throttle 58.The pipe that air throttle 58 is connected is being opened with that Without providing maximum air flow control or regulation in road 18.

It is and solid it is therefore understood that system 10 can have one or more constant air throttle regulators 72 and 74 Air throttle 58 is in different combination and permutation, has the adjuster 72 that is installed therein by the air stream in region 14 Substantial constant minimum and/or maximum horizontal is arrived in regulation or control.When needed, when user wishes in section or 14, region When as having increased air stream such as vent air stream in bathroom, air throttle 58 can start to open position from closed position It sets.

It should be understood that the adjuster 71-74 of different embodiments and feature can be mixed or be exchanged in Fig. 7 A-9B, and It provides in individual system.A kind of combination of signal is shown in Figure 12 A-12B.Such as system 10 can have air throttle 58, It is with adjuster 71 or 72, with or without adjuster 73 and 74.Some air throttles 58 can have solid flat Element 58b and do not have opening 59, similar to the air throttle in Fig. 9 B, and other air throttles 58 and adjuster 72 and 74 can be as Diagram is shown in Fig. 7 A-8B to provide.

As previously mentioned, it is understood that while having shown that 10 He of system using switch 54 (it can be started by user) Method, but other devices also can be used, air throttle 58 is driven from closed position for energizing and starting engine 52 It moves to open position.Such as any suitable device can be used to provide engine control signal, for controlling hair in system 10 Motivation 52, such as switch 54, dehumidifier or take sensor (its sensing when occupant enters or withdraws from a room), timing Device, CO²Any combination of sensor or aforementioned device.

Advantageous, a feature of shown embodiment, which is that it provides, to pass through at least one from section or region 14 Either the regulation of vent air stream or control of multiple pipelines 18 are to maximum air flow rate or smaller or in minimum and maximum Between air stream rate.It should be noted that allow be from the step of air stream of fan 16 or ventilation blower 17 using one or What multiple constant air throttle regulators 72 or 74 passively carried out.

Advantageous, foregoing embodiments provide a kind of mainstream controller or adjuster, in air throttle 58 and at least The form of one or more other flow governor or adjuster, such as constant air throttle regulator 71 and 72.These are empty Air damper can be used alone or be applied in combination with another constant air throttle regulator 73 or 74.

As previously mentioned, an advantage of the embodiment of Fig. 4-6 is the system that maintenance is much better than the prior art, because of component 40 can remove from shell 24 completely, without dismantling shell 24 or terminal 22 with any pipeline or axis.Should also Understand that constant air throttle regulator 71-74 needs seldom or do not need to safeguard, this is different from past electrically and mechanically system.

If any repairing or maintenance must be carried out, shell 24 from pipeline 18 without dismantling.Flow control apparatus Such as adjuster 72 and 74 does not need direct electric or pneumatic power source, and can be by the way that system pipeline pressure is only used only Power regulates and controls and controls air stream.Therefore, even if not arriving the power of switch 54 or engine 52, adjuster 72 and/or 74 Also will continue to regulate and control air stream.

A kind of another feature of embodiment is the small size of terminal device 22, with size 10 " × 1 " × 8 ".Terminal Equipment 22 is mountable between floor and ceiling structure, such as by 16 " those of constructed by supercentral routine joist.

Because system 10 can regulate and control as needed and control the air stream in different section or region 14, can To reduce the whole capability requirement to central fan 16 and/or ventilation blower 17, because system 10 can be in not needing region 14 The air of rate needed for constant air flow is provided and is provided in wherein needing those of increased air stream or ventilation region Stream.This can be used for lesser fan 16 or ventilation blower in system 10.

System 10 is advantageous to provide flow control apparatus, regulates and controls air stream when being exposed to the pipeline pressure of variation To constant level.

Referring now to Figure 13 A-13C, it is shown that another embodiment of the present invention.In these embodiments, identical Part is indicated with identical dash number, other than in the dash number that apostrophe (" ' ") is added to Figure 13 A-13D.

The embodiment of Figure 13 A-13D provides a kind of area control system 100, for air distribution system, exhaust or Person's ventilating system and in building 12, such as multilayer commercial building (Fig. 1), multilayer condominium or apratment building (Fig. 2), occupy It firmly builds (Fig. 3) etc..The system 10 provides a kind of system, apparatus and method, is in for being provided in mode described here The required air stream of required air stream rate and passive air stream in passive air stream rate.As front embodiment that The system 100 of sample, this embodiment may include or using at least one fan 16 ' or may include ventilation blower 17 ', Such as the more mouthfuls of one or more ventilation blower series (MPV) referred to before this.

Referring now to Figure 13 A-13D, in such an implementation, it is used for before this using region controlling terminal equipment 102 In and the air distribution system of type that refers to related to other embodiments.Such as region controlling terminal equipment 102 is used for Or be connected on existing pipeline 104, generally rectangular conventional pipeline is shown as in the shade of Figure 13 A.It is noted that Be region controlling terminal equipment 102 it is usually rectangle and comprising shell 103, there is the first wall 106, the second usually opposite wall 108, third wall 110 and the 4th wall or lid 112, as shown in Figure 13 A-13D.Shell 103 defines housing region 103a.Such as Shown in, wall 106-112 cooperates with to limit generally rectangular shell 103 and housing region 103a.In the diagram, 4th wall 112 is pivotally secured on the first wall 106 and the second wall with such as rivet or screw.4th wall 112 limits disengaging Lid, is pivotally connected to open position shown in Figure 13 A and 13D to closed position (not shown).4th wall or inlet and outlet Lid 112 may include bolt (not shown) or can be fixed to close stance by suitable fastener such as piece metallic screw In setting.In the diagram, the 4th wall or inlet and outlet lid 112 are area when being in open position shown in Figure 13 A The component of domain controlling terminal equipment 102 provides inlet and outlet.It should be noted that wall or lid 112 are between wall 106 and 108 It is pivotally connected, and can axis PA pivot rotation shown in Figure 13 A between open position and closed position (not shown) Turn.

As the embodiment before use, pipeline 18 ' may be coupled at least one or multiple regions control On terminal device 102, at least one be with it is each to aerated area 14 ' run connect.Such as the implementation before use Scheme is such, and single region controlling terminal equipment 102 can be connected with each region 14 ' it should be appreciated that greater than one Multiple region controlling terminal equipment 102 can be connected with each region 14 '.It is same and as previously mentioned, it is not building Each section or region 14 ' in object, structure or dwelling 12 ' must have one or more multiple region controlling terminals Equipment 102, although in a preferred embodiment, the multiple controlling terminal equipment 102 of at least one is and each institute State what region 14 ' was connected.In the diagram shown in Figure 13 A-13B, it is noted that region controlling terminal equipment 102 is located at and deposits It is in the existing pipeline member 104 in building, structure or dwelling 12 '.The region controlling terminal equipment 102 can directly connect It is connected to the main ventilation arbor 20 ' referred to before this above or is connected on main pipe such as pipeline 18 ', be from main ventilation axis 20 ' extensions.As using the embodiment of one or more fronts, region controlling terminal equipment 102 can be located at logical In wind axis, has and be related to the mentioned open pipe extension with the type of Figure 11 before this.

Region controlling terminal equipment 102 includes first or upstream end 102a and second or downstream 102b.It is noted that Be when wall or inlet and outlet lid 112 it is in the closed position when (but it is open at the 102b of downstream), wall 106 The inner surface 116a of inner surface 106a, the inner surface 110a of wall 110, the inner surface 108a and flange of wall 108 or protrusion 116 with The wall or the inlet and outlet collaboration of lid 112 are to provide normally closed position region controlling terminal equipment 102.With the first side The inner wall 114 of 114a and opposite second side 114b are to carry out routine for example, by welding, fastener (not shown) or binder Fixed to inner surface 106a, on 108a and 110a.It should be noted that the respective end 106b of wall 106,108 and 110 (figure 13C), the part of 108b and 110b extends beyond wall 114 to provide or limit flange extension 118, extends beyond wall 114 provide or limit mating surface, which be used to be received in pipeline 104, as shown in Figure 13 A and 13D, and Routine is fixed thereon.

The carrier strip or flange 120 (Figure 13 A and 13B) extended downwardly is routinely fixed on wall 106 and 108 and is located at end At portion 102b, and provide carrier for supporting wall or inlet and outlet lid 112 (when it is in the closed position).Although not showing Out, but the wall 106,108 and 110 and flange 118 would generally be each l-shaped cross section and have such part (not Show), extend from the side (such as in Figure 13 A) top edge 108c, be respectively inside or outside extend come for wall or Person imports and exports lid 112 and provides other carrier or seat.

In the diagram, the first section 114a (Figure 13 B) and the second section 114b limit 126 He of the first hole respectively Second hole 128.First and second holes 126 and 128 are usually circular, and be changed, sizing and size connects respectively Receive sub-pipes or duct extensions 130 and 132 generally cylindrical in shape.In figure 13a it should be noted that sub-pipes or pipeline prolong Extending portion 130 and 132 is shown with fragment figure, so that its inner part is easier to see and understand.Sub-pipes or pipeline prolong Extending portion 130 and 132 includes radial flange 130a and 132a, whole in the cylindrical part 130b, 132b usually extended respectively Body is formed, as best seen in Figure 13 C.In the cylindrical part of the extension of sub-pipes or duct extensions 130 and 132 After 130b, 132b are respectively received in hole 126 and 128, flange 130a and 132a connects with wall 114 and is located against it, such as Shown in Figure 13 C.At least one or multiple conventional fasteners 136 can be used for sub-pipes or duct extensions flange 130a and 132a is fixed on wall 114.Also can be used other for fastening means for example weld, binder etc..It is installing Afterwards, it should be noted that sub-pipes or duct extensions 130 and 132 are usually extended in parallel and are in region controlling terminal equipment 102.

Advantageous, the embodiment shows shell 103, limits pipeline, which has encompassed multiple pipelines, That is, sub-pipes or duct extensions 130 and 132.As previously mentioned, sub-pipes or duct extensions 130 and 132 can be Identical size, shape or dimension, but as shown, it should be understood that they can using different sizes, area, shape or Person's dimension.For example, they can be different length, diameter, size etc..

In the diagram, the cylindrical part 130b of sub-pipes or duct extensions 130 and 132 usually extended At least one or multiple air regulators, such as the constant air flow of previously described type are each encompassed and contained with 132b Adjuster.In this regard, it is noted that sub-pipes or duct extensions 130 and 132 separately include at least one constant sky Air damper 140 and 146 is substantially transported as described in the constant air throttle regulator for being related to foregoing embodiments before this Row.

In the diagram, sub-pipes or duct extensions 130 also include at least one air throttle 142, it includes Fixed bracket 142a (Figure 13 C) will drive the drive shaft 54a ' of engine 52 ' to be connected on air throttle 142, at the air throttle Under the control of switch 54 ', and by open position shown in the closed position shown in Figure 13 A to Figure 13 D of air throttle 142 it Between start.It is described hereafter the function and operation of air throttle 142.

It should be noted that sub-pipes or duct extensions 130 also include at least one second airflow modifier 146.Son Pipeline or duct extensions 130 and air throttle 142 and the operation of at least one the second airflow modifier 146 are similar with function In being related to described in illustrative example shown in Fig. 9 B before this.When air throttle 142 is (to be schemed by engine 52 ' from closed position When 13A) starting to open position (Figure 13 D), air stream, which is released, flows through the first sub-pipes or duct extensions 130, and The air stream is regulated and controled by least one second airflow modifier 146.It is therefore understood that air throttle 142 and extremely Few second airflow modifier 146 is concatenated, and is cooperateed with to provide cubic feet per minute to pressure difference, is similar to Shown in Fig. 9 B.

Sub-pipes or duct extensions 132 include also at least one first airflow modifier 140, and are played a role Control the air stream of the minimum and maximum amount across region controlling terminal equipment 102, or even when air throttle 142 is in Figure 13 A Shown in closed position when be also such.On the contrary, it is noted that when open position shown in air throttle 142 is in Figure 13 D, Air is also allowed to flow through sub-pipes and perhaps duct extensions 130 and passes through the maximums of sub-pipes or duct extensions 130 Air stream rate or cubic feet per minute are provided or are controlled by least one second airflow modifier 146. Therefore, when air throttle 142 is in the closed position, at least one first airflow modifier 140 controls or allows scheduled Or the air stream of minimum passes through region controlling terminal equipment 102.When air throttle 142 is in an open position (Figure 13 D), until Few second airflow modifier 146 is cooperateed with at least one first airflow modifier 140 to control or allow air For stream across region controlling terminal equipment 102, the collaboration of at least one first and second airflow modifier 140 and 146 is pre- to allow Fixed the maximum amount of air stream passes through region controlling terminal equipment 102.It is therefore understood that passing through region controlling terminal equipment Therefore 102 scheduled the maximum amount of air stream is at least the first airflow modifier 140 and at least one second air stream tune Save the sum of the maximum air flow rate of device 146.Foregoing teachings are summarized, should be readily appreciated that lower Table I:

Table I

It is therefore understood that when air throttle 142 open when, at least one second airflow modifier 146 always with solar term Valve 142 is concatenated, and is parallel at least one first airflow modifier 140, and allow to flow through region controlling terminal and set Standby 102 maximum air flow rate is at least one the first airflow modifier 140 and at least one second airflow modifier The sum of 146 maximum air flow rate.For example, if at least one first and second airflow modifier 140 and 146 are each Permission air traffic specification with 10-175 cubic feet per minute, then when air throttle 142 is in closed position shown in Figure 13 A When, the maximum air flow across region controlling terminal equipment 102 is controlled by least one the first airflow modifier 140 , and become 175 cubic feet per minutes.But if air throttle 142 has responded to the need in specific section or region 14 ' It wants and starts to open position, then become 350 cubic feet per minutes across the maximum air flow of region controlling terminal equipment 102 (175 cubic feet per minute of maximum air flow of at least one the first airflow modifier 140 adds at least one second air 175 cubic feet per minute of maximum air flow of throttle regulator 146).On the contrary, it is noted that the embodiment before herein In, airflow modifier is arranged in series, and minimum air flow adjuster is physically located solar term in one embodiment In valve 142.In such embodiments maximum air flow rate be limited to concatenated airflow modifier it is highest most Big air stream rate.

Advantageous, airflow modifier 140,146 can have identical specification, but more typically, they have not Same minimum and maximum air stream rate requirements, can be used in this embodiment.This can be conducive to region controlling terminal Equipment 102 customizes or is adapted to specific environment or structure.Such as do not using generally, but suddenly crowded with people environment or In person room (such as auditorium in building), it would be desirable to provide high maximum air flow rate allows big air Stream is across region controlling terminal equipment 102.

It should also be understood that one or more features of previously mentioned embodiment can be with implementation described in Figure 13 A-13D Scheme is used together.For example, at least a third airflow modifier can be placed in air throttle 142, be similar to Fig. 6 shown in and Shown in the embodiment.It should also be understood that other one or more airflow modifiers can be located in wall 114 or it Perhaps its in duct extensions (not shown) is the side to be similar to sub-pipes or duct extensions 130 and 132 for his sub-pipes Formula be installed among wall 114 or on.In other words, wall 114 can be used for supporting than two sub-pipes shown in Figure 13 A-13D Perhaps the more sub-pipes of duct extensions 130 132 or duct extensions.When air throttle 142 starts to open position, Air throttle 142 can star solar term threshold switch, as previously mentioned.

It should also be understood that sub-pipes or duct extensions 130,132 can use other shapes and form, and can To be same or different size.In the diagram shown in Figure 13 A-13D, the first sub-pipes or duct extensions 130 Length and diameter is greater than the second sub-pipes or duct extensions 132.Biggish diameter allows at least one second air stream tune It saves device 146 and is greater than at least one first airflow modifier 140.Selectable, the sub-pipes or duct extensions can be Identical size, or similarly can be different size.In the diagram, at least one first airflow modifier 140 be lesser, and is had than at least one lower maximum air flow rate of the second airflow modifier 146.

Referring back to Figure 13 D, it is noted that sub-pipes or duct extensions 130 include the first foam seal item 156 With the second foam seal item 158, both is the interior table that sub-pipes or duct extensions 130 are routinely attached to relativeness On face or wall 130a.It should be noted that when air throttle 142 is in the closed position, the first surface 142a of air throttle 142 (Figure 13 C) connects with the first foam seal item 156 (Figure 13 B), and usually opposite second surface 142b (Figure 13 A) and second Foam seal item 158 connects, as shown in Figure 13 A-13D.It should be understood that the first and second foam seal items 156 and 158 are along son The longitudinal axis of pipeline or duct extensions 130 slight vertical misalignment each other, so that air throttle 142 can be in open position and pass It is moved between closed position.

During use, air throttle 142 may be at common closed position (Figure 13 A), and in this case, first is empty Air damper 140 controls the air stream across region controlling terminal equipment 102.Corresponding air flow graph is shown in Figure 13 A In.For example, if at least one or multiple first airflow modifiers 140 have the regulation of 10-175 cubic feet per minute Air traffic specification.When as previously mentioned, it is desirable that when forming other air stream by switch 54 ', switch 54 ' makes engine 52 ' Open position shown in Figure 13 D is started to energy and by the closed position shown in Figure 13 A of air throttle 142.Once being in When open position, at least one second airflow modifier 146 becomes movable.It is formed by across region controlling terminal equipment 102 air stream is shown in the cubic feet per minute shown in Figure 13 D-pressure difference figure, and will allow across extremely The sum of the air stream of few one first airflow modifier 140 and at least one the second airflow modifier 146, is such as related to before this Table I is mentioned and described.

Advantageous, the system and method for the embodiment of Figure 13 A-13D allow to increase when desired the amount of maximum air flow. The feature of the embodiment of front can be used at least one or the two of sub-pipes or duct extensions 130 and 132. For example, although it is not shown, sub-pipes or duct extensions 132 also may include it is concatenated with airflow modifier 140 Air throttle, and also may include other one or more features of previously mentioned embodiment.

As previously mentioned, it should be understood that if desired, then region controlling terminal equipment 102 can have more sub-pipes Perhaps duct extensions and those sub-pipes or duct extensions may include airflow modifier and air throttle, so Before be related to described in the embodiment of Figure 13 A-13D or as described in the embodiment for being related to front.Such as other sub-pipes or Person's duct extensions (not shown) may include at least one or multiple constant air throttle regulators, arranged in series, and With or be not used together with air throttle.

Although system, apparatus and method here describe composition preferred embodiment of the invention it should be appreciated that The present invention is not limited to this accurate system, apparatus and method, and can be changed wherein, without departing from additional power Benefit requires defined the scope of the present invention.

Claims

1. a kind of region controlling terminal equipment in air distribution system, the region controlling terminal equipment includes:

Shell has the entrance for receiving air stream, and outlet；

First pipe, duct element, duct extensions or sub-pipes in the shell；

Air throttle is located in the first pipe, duct element, duct extensions or sub-pipes and is located at the entrance Between the outlet, the air throttle can move between open and closed positions；

Engine, for driving the air throttle between the open position and the closed position；

Second pipe, duct element, duct extensions or sub-pipes in the shell；

At least one first airflow modifier is located at the second pipe, duct element, duct extensions or sub-pipes In, not with the air throttle arranged in series；And

At least one second airflow modifier is located at the first pipe, duct element, duct extensions or sub-pipes In, with the air throttle arranged in series；

Wherein the region controlling terminal equipment is suitable for receiving the air stream from supply line, and the air stream passes through the area Domain controlling terminal equipment flows at least one region or flows to the region controlling terminal equipment from least one region, described At least one first airflow modifier, at least one described second airflow modifier and air throttle collaboration are to control Have and at least one described region is flowed to by the supply line or flows to the supply line from least one described region The air stream rate of air；

Wherein when the air throttle is in the closed position, the control of first airflow modifier of at least one described Or the air stream of predetermined minimum amount is allowed to pass through the shell, and when the air throttle is in the open position When, at least one described second airflow modifier cooperate with first airflow modifier of at least one described controlling or Person allows scheduled the maximum amount of air stream to pass through the shell, across the described pre- of the region controlling terminal equipment Fixed the maximum amount of air stream be at least one first airflow modifier maximum air flow rate and it is described extremely The sum of the maximum air flow rate of few second airflow modifier；

Wherein at least one described first airflow modifier is constant air throttle regulator in the pressure limit of variation；

Wherein at least one described second airflow modifier is constant air throttle regulator in the pressure limit of variation.

2. the region controlling terminal equipment in air distribution system as described in claim 1, wherein described at least one A second airflow modifier is located in pipeline, the air throttle and the pipeline relating operation, so that when described When air throttle is in the closed position, no air flows through at least one described second airflow modifier.

3. the region controlling terminal equipment in air distribution system as described in claim 1, wherein when the solar term When valve is in the closed position, the air flows through at least one described first airflow modifier, and is not passed through Second airflow modifier of at least one described.

4. the region controlling terminal equipment in air distribution system as described in claim 1, wherein when the solar term When valve is in the open position, the air flows through at least one described first airflow modifier and also flows through Second airflow modifier of at least one described, to allow the scheduled the maximum amount of air stream to pass through the region Controlling terminal equipment.

5. the region controlling terminal equipment in air distribution system as described in claim 1, wherein the air throttle It is located in common sub-pipes or duct element with second airflow modifier of at least one described.

6. the region controlling terminal equipment in air distribution system as described in claim 1, wherein described at least one A first airflow modifier is located in the sub-pipes or duct extensions in the shell, independently of the solar term Second airflow modifier of valve and at least one described.

7. the region controlling terminal equipment in air distribution system as claimed in claim 5, wherein the shell packet Containing the wall with the first hole and the second hole, at least one described first airflow modifier be used to regulate and control across described the The air stream in one hole and at least one described second airflow modifier and the air throttle be used to regulate and control across described The second hole air stream.

8. the region controlling terminal equipment in air distribution system as claimed in claim 7, wherein first pipe Road, duct element, duct extensions or sub-pipes are connected on the wall, and are connected to first hole, and at least One the first airflow modifier is located in the first pipe, duct element, duct extensions or sub-pipes.

9. the region controlling terminal equipment in air distribution system as claimed in claim 7, wherein second pipe Road, duct element, duct extensions or sub-pipes are connected on the wall, and are connected to second hole, and have Have the air throttle for being located at least one of the second pipe, duct element, duct extensions or sub-pipes or At least one first airflow modifier described in person.

10. the region controlling terminal equipment in air distribution system as claimed in claim 9, wherein the air throttle Second pipe, duct element, duct extensions or the son are all located at second airflow modifier of at least one described In pipeline.

11. the region controlling terminal equipment in air distribution system as claimed in claim 9, wherein in the shell In, the first pipe, duct element, duct extensions or sub-pipes are located at the second pipe, duct element, pipeline Extension or sub-pipes are neighbouring.

12. the region controlling terminal equipment in air distribution system as described in claim 1, wherein the region control Terminal device processed further includes at least one third airflow modifier in the air throttle.

13. the region controlling terminal equipment in air distribution system as described in claim 1, wherein described at least one The maximum air flow rate of a first airflow modifier is different from the maximum of at least one second airflow modifier Air stream rate.

14. the region controlling terminal equipment in the air distribution system as claimed in claim 13, wherein it is described at least The maximum air flow rate of one the first airflow modifier is less than the maximum of at least one second airflow modifier Air stream rate.

15. the region controlling terminal equipment in air distribution system as described in claim 1, wherein described at least one A first airflow modifier and second airflow modifier of at least one described each include that single constant air flow is adjusted Device.

16. the region controlling terminal equipment in air distribution system as described in claim 1, wherein described at least one A first airflow modifier allows to come the air stream of the minimum in the region of self-structure.

17. the region controlling terminal equipment in air distribution system as claimed in claim 16, wherein the minimum The air stream of amount is at least 10 cubic feet per minutes.

18. the region controlling terminal equipment in air distribution system as described in claim 1, wherein being opened by least one It closes to generate the engine control signal for energizing for the engine.

19. the region controlling terminal equipment in air distribution system as claimed in claim 18, wherein the switch Respond following at least one: humidity sensor manually controls, time controller, occupancy or other existing indicators.

20. the region controlling terminal equipment in air distribution system as described in claim 1, wherein the air throttle Start solar term threshold switch, to respond air throttle described in the engine driving to the open position.

21. the region controlling terminal equipment in air distribution system as described in claim 1, wherein the air throttle The spring for further including the pivot arm being connected on the engine and being installed in the pivot arm, being used for will be described Air throttle be biased on the closed position.

22. the region controlling terminal equipment in air distribution system as described in claim 1, wherein the shell limit Terminal device pipeline is made, the region controlling terminal equipment further includes:

The first pipe, duct element, duct extensions or sub-pipes in the terminal device pipeline；

The second pipe, duct element, duct extensions or sub-pipes in the terminal device pipeline；

First pipe, duct element, duct extensions or the sub-pipes wherein have at least one described first empty Air damper, for regulating and controlling the air stream across the first pipe, duct element, duct extensions or sub-pipes；

Second pipe, duct element, duct extensions or the sub-pipes wherein have at least one described second empty Air damper, for regulating and controlling the air stream across the second pipe, duct element, duct extensions or sub-pipes；

The air throttle operates connection with the second pipe, duct element, duct extensions or sub-pipes or is connected, Come so that being flowed through wherein without air stream or by the air stream that second airflow modifier of at least one described regulates and controls.

23. the region controlling terminal equipment in air distribution system as described in claim 1, wherein described at least one A first airflow modifier is located in the first pipe, duct element, duct extensions or sub-pipes, while described At least one second airflow modifier is located in the second pipe, duct element, duct extensions or sub-pipes, each First pipe, duct element, duct extensions or the sub-pipes and the second pipe, duct element, pipeline extend Portion or sub-pipes are located in the shell, so that at least one described first airflow modifier and described at least one A second airflow modifier can control the air stream across the shell.

24. the region controlling terminal equipment in air distribution system is used in as described in claim 1, described in wherein at least one At least one the first airflow modifier or second airflow modifier of at least one described be located at be mounted on it is described outer In pipeline, duct element, duct extensions or sub-pipes in shell.

25. the region controlling terminal equipment in air distribution system as claimed in claim 24, wherein the shell Usually rectangle and the pipeline, duct element, duct extensions or sub-pipes are usually cylinder.

26. the region controlling terminal equipment in air distribution system as claimed in claim 25, wherein the shell With the wall for limiting multiple holes, the region controlling terminal equipment is multiple comprising being connected with each of multiple holes Pipeline, duct element, duct extensions or sub-pipes.

27. the region controlling terminal equipment in air distribution system as claimed in claim 26, wherein described is multiple Pipeline, duct element, duct extensions or sub-pipes include two.

28. the region controlling terminal equipment in air distribution system as claimed in claim 26, wherein described is multiple Pipeline, duct element, duct extensions or sub-pipes include to be greater than two.

29. the region controlling terminal equipment in air distribution system as described in claim 1, wherein the shell limit Such region is made, is encompassed with the air throttle and at least one the described second air stream tune being attached thereto Save the first pipe, duct element, duct extensions or the sub-pipes of device and with described at least one being attached thereto The second pipe, duct element, duct extensions or the sub-pipes of a first airflow modifier.

30. a kind of for regulating and controlling the system of the air stream in the structure with multiple regions, the system includes:

The multiple terminal devices being connected respectively with each of the multiple regions；

At least one pipeline, for air flow generator to be connected to each of the multiple terminal devices；

Each multiple terminal devices include:

Shell has the entrance for receiving air stream, and outlet；

First pipe, duct element, duct extensions or sub-pipes in the shell；

Air throttle is located at the first pipe, duct element, duct extensions or sub-pipes and neutralizes positioned at the entrance Between the outlet, the air throttle can move between open and closed positions；

Engine, for driving the air throttle, the engine between the open position and the closed position Air flow requirements are responded；

Second pipe, duct element, duct extensions or sub-pipes in the shell；

At least one first airflow modifier is located in each of described multiple terminal devices；And

The wherein air stream of the first predetermined amount of at least one described first airflow modifier control or permission, and when described Air throttle be in the open position, the air throttle and at least one second airflow modifier and it is described at least One the first airflow modifier cooperates with to control or allow the air stream of the second predetermined amount to pass through the shell, described The air stream of second predetermined amount pass through the multiple terminal devices, the air stream of second predetermined amount be it is described at least The maximum air flow rate of one the first airflow modifier and the maximum of at least one second airflow modifier are empty The sum of airflow rate；

31. it is as claimed in claim 30 for regulating and controlling the system of the air stream in the structure with multiple regions, wherein each The multiple terminal devices include the wall with first passage, and first airflow modifier of at least one described has regulated and controled stream Air stream through the first passage.

32. it is as claimed in claim 31 for regulating and controlling the system of the air stream in the structure with multiple regions, wherein each The multiple terminal devices include the wall with second channel, when the air throttle is in the open position, institute The second airflow modifier of at least one stated has regulated and controled the air stream for flowing through the second channel.

33. it is as claimed in claim 32 for regulating and controlling the system of the air stream in the structure with multiple regions, wherein described First passage limited by the first pipe, duct element, duct extensions or sub-pipes and described second is logical Road is limited by the second pipe, duct element, duct extensions or sub-pipes.

34. it is as claimed in claim 32 for regulating and controlling the system of the air stream in the structure with multiple regions, wherein each The multiple terminal devices include the first pipe for being connected to the wall and limiting the first passage, Duct element, duct extensions or sub-pipes, and be connected to the wall and limit the described of the second channel Second pipe, duct element, duct extensions or sub-pipes, at least one described second airflow modifier and the section Air valve is located at together in the second pipe, duct element, duct extensions or sub-pipes, the air throttle be with it is described Second pipe, duct element, duct extensions or sub-pipes relating operation so that when the air throttle is in described Closed position when, no air flows through at least one described second airflow modifier.

35. it is as claimed in claim 30 for regulating and controlling the system of the air stream in the structure with multiple regions, wherein working as institute When the air throttle stated is in the closed position, the air flows through at least one described first airflow modifier, And it is not passed through at least one described second airflow modifier.

36. it is as claimed in claim 30 for regulating and controlling the system of the air stream in the structure with multiple regions, wherein working as institute When the air throttle stated is in the open position, the air stream of the first part of the multiple terminal devices is flowed through Through first airflow modifier of at least one described, and flow through the sky of the second part of the multiple terminal devices Air-flow is described to allow the air stream of second predetermined amount to pass through through second airflow modifier of at least one described Multiple terminal devices.

37. it is as claimed in claim 30 for regulating and controlling the system of the air stream in the structure with multiple regions, wherein described At least one first airflow modifier be located in the pipeline, duct element, duct extensions or sub-pipes, independently of Second airflow modifier of air throttle and at least one described.

38. it is as claimed in claim 30 for regulating and controlling the system of the air stream in the structure with multiple regions, wherein described Shell include the wall with first passage and second channel, first airflow modifier of at least one described be used to regulate and control Across the air stream of the first passage and at least one first airflow modifier and at least one described Two airflow modifiers be used to regulate and control the air stream across the second channel.

39. it is as claimed in claim 38 for regulating and controlling the system of the air stream in the structure with multiple regions, wherein described First pipe, duct element, duct extensions or sub-pipes to be connected on the wall and limit described first logical Road and at least one first airflow modifier are located at the first pipe, duct element, duct extensions or sub-pipes In.

40. it is as claimed in claim 39 for regulating and controlling the system of the air stream in the structure with multiple regions, wherein described Second pipe, duct element, duct extensions or sub-pipes be connected on the wall and limit the second channel, And there is the section for being located at least one of the second pipe, duct element, duct extensions or sub-pipes First airflow modifier of air valve or at least one described.

41. it is as claimed in claim 40 for regulating and controlling the system of the air stream in the structure with multiple regions, wherein in institute In the shell stated, the first pipe, duct element, duct extensions or sub-pipes are usually to be adjacently positioned, and have There is such axis, is typically parallel to the axis of the second pipe, duct element, duct extensions or sub-pipes.

42. it is as claimed in claim 30 for regulating and controlling the system of the air stream in the structure with multiple regions, wherein described At least one the first airflow modifier maximum air flow rate different from second air stream of at least one described adjust The maximum air flow rate of device.

43. it is as claimed in claim 42 for regulating and controlling the system of the air stream in the structure with multiple regions, wherein described At least one the first airflow modifier maximum air flow rate be less than second airflow modifier of at least one described Maximum air flow rate.

44. it is as claimed in claim 30 for regulating and controlling the system of the air stream in the structure with multiple regions, wherein described At least one the first airflow modifier and second airflow modifier of at least one described each include with different The single constant air throttle regulator of minimum air flow rate.

45. it is as claimed in claim 30 for regulating and controlling the system of the air stream in the structure with multiple regions, wherein switching Respond following at least one: humidity sensor manually controls, time controller, occupancy or other existing indicators.

46. it is as claimed in claim 30 for regulating and controlling the system of the air stream in the structure with multiple regions, wherein described The air throttle spring that further includes the pivot arm for being connected to the engine and be mounted in the pivot arm, be used for The air throttle is biased to the closed position.

47. it is as claimed in claim 30 for regulating and controlling the system of the air stream in the structure with multiple regions, wherein each The multiple terminal devices include can around the pivot rotation lid.

48. a kind of area control system in the structure with multiple regions, the area control system includes:

The multiple terminal devices being connected respectively with each multiple regions, the multiple terminal devices, which be used to receive, to be come From the air stream of air flow generator；

Each multiple terminal devices include:

Shell has the entrance for receiving air stream, and outlet；

First pipe, duct element, duct extensions or sub-pipes in the shell；

Engine, for driving the air throttle, the engine between the open position and the closed position Demand is responded；

Second pipe, duct element, duct extensions or sub-pipes in the shell；

At least one first airflow modifier is located at the second pipe, duct element, duct extensions or sub-pipes In, it is parallel to the air throttle arrangement；

Wherein when the air throttle is in the closed position, first airflow modifier of at least one described allows Air flows to the first predeterminated level, and when the air throttle is in the open position, at least one described first Airflow modifier cooperates with to permit air to flow to the second predeterminated level with second airflow modifier of at least one described；

49. the area control system in the structure with multiple regions as claimed in claim 48, wherein described the Two predeterminated levels be maximum air flow level, and be across first airflow modifier of at least one described and it is described extremely The sum of the air stream of few second airflow modifier.

50. the area control system as claimed in claim 49 in the structure with multiple regions, wherein each described Multiple terminal devices include the wall with second channel, when the air throttle is opened, at least one described second is empty Air damper has regulated and controled the air stream for flowing through the second channel.

51. the area control system in the structure with multiple regions as claimed in claim 50, wherein described the One pipeline, duct element, duct extensions or sub-pipes limit first passage and the second channel passes through described second Pipeline, duct element, duct extensions or sub-pipes limit.

52. the area control system as claimed in claim 51 in the structure with multiple regions, wherein each described Multiple terminal devices include be connected on the wall, and limit the first passage the first pipe, Duct element, duct extensions or sub-pipes, and be connected on the wall, and limit the described of the second channel Second pipe, duct element, duct extensions or sub-pipes, second airflow modifier of at least one described and described Air throttle is located at second pipe, duct element, duct extensions or the sub-pipes together, the air throttle be with it is described Second pipe, duct element, duct extensions or sub-pipes associated operations so that when the air throttle is in institute When the closed position stated, no air flows through at least one described second airflow modifier.

53. the area control system as claimed in claim 48 in the structure with multiple regions, wherein when described When air throttle is in the closed position, the air flows through at least one described first airflow modifier, and It is not passed through at least one described second airflow modifier.

54. the area control system as claimed in claim 48 in the structure with multiple regions, wherein when described When air throttle is in the open position, flow through a part of the multiple terminal devices the air flow through it is described At least one first airflow modifier, and flow through the air stream of the second part of the multiple terminal devices Through second airflow modifier of at least one described, set with allowing the air stream of the second predetermined amount to pass through multiple terminals It is standby.

55. the area control system in the structure with multiple regions as claimed in claim 48, wherein it is described extremely Few first airflow modifier is located in pipeline, duct element, duct extensions or sub-pipes, independently of the solar term Second airflow modifier of valve and at least one described.

56. the area control system as claimed in claim 48 in the structure with multiple regions, wherein described is outer Shell include with first passage and second channel wall, first airflow modifier of at least one described be used for regulate and control across The air stream of the first passage and at least one described first airflow modifier and the air throttle and described At least one second airflow modifier be used to regulate and control the air stream across the second channel.

57. the area control system in the structure with multiple regions as claimed in claim 56, wherein described the One pipeline, duct element, duct extensions or sub-pipes are connected on the wall and limit the first passage, and At least one first airflow modifier is located in the first pipe, duct element, duct extensions or sub-pipes.

58. the area control system in the structure with multiple regions as claimed in claim 57, wherein described the Two pipelines, duct element, duct extensions or sub-pipes are connected on the wall and limit the second channel, and With the air throttle for being located at least one of the second pipe, duct element, duct extensions or sub-pipes Or first airflow modifier of at least one described.

59. the area control system as claimed in claim 58 in the structure with multiple regions, wherein described In shell, the first pipe, duct element, duct extensions or sub-pipes are usually adjacently positioned, and are had such Axis is typically parallel to the axis of the second pipe, duct element, duct extensions or sub-pipes.

60. the area control system in the structure with multiple regions as claimed in claim 48, wherein it is described extremely The maximum air flow rate of few first airflow modifier is different from least one second airflow modifier Maximum air flow rate.

61. the area control system in the structure with multiple regions as claimed in claim 60, wherein it is described extremely The maximum air flow rate of few first airflow modifier is less than second airflow modifier of at least one described most Big air stream rate.

62. the area control system as claimed in claim 48 in the structure with multiple regions, wherein each described At least one first airflow modifier and at least one described second airflow modifier include have different minimums The single constant air throttle regulator of air stream rate.

63. the area control system as claimed in claim 48 in the structure with multiple regions, wherein switch response Following at least one: humidity sensor manually controls, time controller, occupancy or existing other indicators.

64. the area control system as claimed in claim 48 in the structure with multiple regions, wherein each described Multiple terminal devices further include solar term threshold switch, be connected on the air flow generator in the system In cause air stream, the solar term threshold switch is started when the air throttle is moved to the open position.

65. the area control system being used in the structure with multiple regions as described in claim 64, wherein the section The air valve starting solar term threshold switch, to respond the engine for the air throttle driving to the open position On.

66. the area control system as claimed in claim 48 in the structure with multiple regions, wherein the section The spring that air valve further includes the pivot arm being connected on the engine and is mounted in the pivot arm, being used for will The air throttle is biased to the closed position.

67. the area control system as claimed in claim 48 in the structure with multiple regions, wherein each described Multiple terminal devices include can around the pivot rotation lid.