公开(公告)号：US5081913A

公开(公告)日：1992-01-21

申请号：US525028

申请日：1990-05-18

申请人： Hubert Gervais

发明人： Hubert Gervais

IPC分类号： F04D27/00 ,  F24F11/02 ,  F24F11/04

CPC分类号： F24F11/043 ,  F04D27/00 ,  F24F11/022 ,  Y10T137/7759

摘要： An automatic ventilator closure is described which operates on the basis of an over-pressure within the conduit leading up to the ventilator outlet. Electrical interlocks control a motor to place the closure in an open or closed condition.

摘要翻译： 描述了一种自动呼吸机闭合装置，其基于通向通气机出口的导管内的过压而起作用。 电气互锁控制电机将闭合件置于打开或关闭状态。

公开(公告)号：US4498373A

公开(公告)日：1985-02-12

申请号：US485746

申请日：1983-04-18

申请人： Willard W. Dittmer ,  Mark W. Dittmer

发明人： Willard W. Dittmer ,  Mark W. Dittmer

IPC分类号： F24F7/00 ,  F24F11/04 ,  F24F13/14 ,  F24F7/007

CPC分类号： F24F11/043 ,  F24F13/1413 ,  F24F13/1486 ,  F24F7/00

摘要： In negative pressure ventilating system wherein atmospheric air is introduced along the walls of a building adjacent the roof, insulated, hinged valves provided within the associated airways rise automatically from their lower, fully closed position by the pressure of the incoming air as the inside pressure is reduced to below atmospheric. The bottoms of the valves and the surfaces upon which they rest, when closed by gravity, are contoured to reduce resistance to free air flow in the airways. A smooth, uninterrupted change of directional flow is effected by streamlining both the valves and the opposed surfaces, virtually eliminating air turbulence from the inlets to the discharge ends of the air ducts. By elimination of abrupt changes in the direction of flow the incoming air is properly controlled. The air is gradually directed along the airways downwardly and inwardly away from the ceiling and the adjacent wall such as to provide proper air distribution within the building regardless of variances in the rate of air flow. The surfaces are formed on baffling which controls air circulation within the building.

摘要翻译： 在负压通风系统中，其中大气沿着与屋顶相邻的建筑物的壁被引入，设置在相关联的气道内的绝缘的铰链阀门通过进入空气的压力自动地从其下部完全关闭位置升高，因为内部压力为 降至低于大气压。 当通过重力关闭时，阀门的底部和它们静止的表面形成轮廓，以减少对气道中的自由空气流动的抵抗力。 定向流动的平稳，不间断的变化是通过简化阀门和相对表面来实现的，实际上消除了入口到空气管道的排放端的空气湍流。 通过消除流动方向的突然变化，进入的空气被适当地控制。 空气沿着气道向下并向内远离天花板和相邻的壁逐渐引导，以便在建筑物内提供合适的空气分布，而不管空气流量的变化如何。 这些表面形成在控制建筑物内的空气循环的挡板上。

公开(公告)号：US4377968A

公开(公告)日：1983-03-29

申请号：US223324

申请日：1981-01-08

申请人： Ulric K. Gerry

发明人： Ulric K. Gerry

IPC分类号： F24F11/04 ,  F24F13/08 ,  G05D7/01 ,  F24F13/10

CPC分类号： F24F13/08 ,  F24F11/043 ,  G05D7/012 ,  F24F2013/1493 ,  Y10S251/901 ,  Y10T137/7875

摘要： The present invention relates to an arrangement for controlling fluid flow through an aperture.In one embodiment, the flow control arrangement, which may be used in association with a window to control the flow of ventilating air, comprises a strip brush composed of an array of resilient filaments firmly mounted at their root region. The free end region of the filaments define, with a fixed flange, the effective area or width of an aperture for the passage of ventilating air. Variations in the strength of the air flow incident to the array of filaments causes changes in the degree of deflection of the filaments, thus altering the effective width of the aperture and controlling the air flow through the aperture.

摘要翻译： 本发明涉及一种用于控制通过孔的流体流动的装置。 在一个实施例中，可以与用于控制通风空气流动的窗口相关联地使用的流量控制装置包括由其牢固地安装在其根部区域处的弹性细丝阵列组成的带状刷。 长丝的自由端区域用固定的法兰限定用于通风空气通过的孔的有效面积或宽度。 入射到细丝阵列的空气流的强度的变化导致长丝的偏转程度的变化，从而改变孔的有效宽度并控制通过孔的空气流。

公开(公告)号：US4277019A

公开(公告)日：1981-07-07

申请号：US148652

申请日：1980-05-12

申请人： James S. Shreve

发明人： James S. Shreve

IPC分类号： F24D19/10 ,  F24F3/044 ,  F24F11/04 ,  F24F13/14 ,  G05D23/275 ,  F24F7/06

CPC分类号： F24F11/043 ,  F24D19/1084 ,  F24F13/1426 ,  F24F3/0442 ,  G05D23/1917 ,  G05D23/275 ,  F24F2013/148

摘要： A novel fluid-flow control damper is disclosed. The damper comprises a freely pivotable closure situated in a fluid-flow conduit, such as an air duct. The closure is maintained in a closed position by a simple latching means, and may be maintained in an open condition by means of fluid flow through the conduit. Several of these dampers may be used in combination with a single fluid temperature control device, resulting in a simple, low-cost multizone heating or cooling system.

摘要翻译： 公开了一种新颖的流体流量控制阻尼器。 阻尼器包括位于诸如空气管道的流体流动管道中的可自由枢转的闭合件。 封闭件通过简单的锁定装置保持在关闭位置，并且可以通过流体流过管道而保持在打开状态。 这些阻尼器中的几个可以与单个流体温度控制装置组合使用，导致简单的低成本多区域加热或​​冷却系统。

公开(公告)号：US4002110A

公开(公告)日：1977-01-11

申请号：US574927

申请日：1975-05-06

申请人： Constantin Teodorescu ,  Ilie Chiriac ,  Ion Stelian Iacob

发明人： Constantin Teodorescu ,  Ilie Chiriac ,  Ion Stelian Iacob

IPC分类号： F04F5/16 ,  F04F5/44 ,  F04F5/48 ,  F24F7/06 ,  F24F11/04 ,  F24F13/26 ,  F24F13/10

CPC分类号： F04F5/44 ,  F04F5/16 ,  F04F5/48 ,  F24F11/043 ,  F24F13/26 ,  F24F7/065 ,  Y10T137/7903

摘要： Gasodynamic ventilation device consisting of a prime ejection channel provided with a nozzle for the introduction of the operative fluid and a secondary ejection channel mounted coaxially with a prime ejection channel provided at the upstream end with an admission inlet for the ambient air provided with a silencing screen. The primary and secondary channels are provided with vanes so that the two channels are separated by a section which constitutes the inlet for the admission of ambient air.In a first modified construction of the secondary channel is provided a shield griller in a second variant the secondary channel is provided with automatic obturating members consisting of a front wall being constructed as a flap and two lateral walls, the entire obturator being pivotally mounted.

摘要翻译： 气动换气装置由主喷射通道组成，该主喷射通道设置有用于引入工作流体的喷嘴和与上游端设置的主喷射通道同轴安装的辅助喷射通道，其具有设置有沉积屏幕的环境空气的入口入口 。 主通道和第二通道设有叶片，使得两个通道被构成用于进入环境空气的入口的部分分开。

公开(公告)号：US6131463A

公开(公告)日：2000-10-17

申请号：US918408

申请日：1997-08-26

申请人： Robert H. Morris

发明人： Robert H. Morris

IPC分类号： F24F7/00 ,  F24F11/04 ,  G01L7/00

CPC分类号： F24F11/043 ,  F24F2007/001 ,  F24F2011/0042

摘要： A system for optimizing the flow of air through a fume hood by dynamically controlling the air flow to provide a stable vortex in the vortex chamber of the hood, the optimum condition for minimizing backflow of fume-laden air through the hood doorway. A highly-sensitive pressure sensor disposed at a critical location in the vortex chamber sidewall senses minute variations in vortex pressure indicative of turbulence and sends signals via a transducer to an analog controller which uses proportional integral and adaptive gain algorithms to formulate output signals to an actuator which adjusts dampers in the hood to change the airflow into the vortex. The system operates in feedback mode and seeks a minimum in the amplitude of the sidewall pressure variations, indicating that turbulence has been eliminated and that a stable vortex exists. The pressure sensor signals can also be directed to an alarm to signal an off-standard and potentially dangerous condition.

摘要翻译： 通过动态地控制空气流量以在发动机罩的涡流室中提供稳定的涡流来优化通过通风橱的空气流的系统，这是使通过发动机罩门口的含烟空气回流最小化的最佳条件。 设置在涡流室侧壁的关键位置的高灵敏度的压力传感器感测到指示湍流的涡流压力的微小变化，并且经由换能器将信号发送到模拟控制器，该模拟控制器使用比例积分和自适应增益算法来将输出信号配置到致动器 其调节罩中的阻尼器以将气流改变成涡流。 该系统在反馈模式下工作，并且寻求侧壁压力变化幅度的最小值，表明湍流已被消除并且存在稳定的涡流。 压力传感器信号也可以被引导到报警器来发出标准的和潜在的危险的状况。

公开(公告)号：US5365975A

公开(公告)日：1994-11-22

申请号：US215593

申请日：1994-03-22

申请人： Anthony Cote

发明人： Anthony Cote

IPC分类号： F16K17/12 ,  F24F11/04 ,  F16K11/00

CPC分类号： F16K17/12 ,  F24F11/043 ,  Y10T137/7903 ,  Y10T137/87812 ,  Y10T137/87829

摘要： A constant air pressure unit for an air handling system. The unit comprises a housing having an air inlet opening for admitting pressurized air into the housing. The housing has a top wall with a by-pass opening therein and a door is displaceably retained over the by-pass opening. The door has a predetermined load whereby the door is caused to lift away from the by-pass opening when the pressure of the air in the housing is equal to the pressure required to lift the load. The door load defines a maximum housing pressure. In the case where the pressure at the inlet opening starts to increase above the predetermined maximum housing pressure, the door lifts and by-passes the excess pressurized air and thus limits the inlet and housing pressures. In a corollary unit, an air outlet opening for releasing air is included. A pressurized airflow path is defined between the inlet opening and the outlet opening. The outlet airflow is restricted by the use of an adjustable restrictor blade which will start to increase the pressure in the housing. With the door load selected for a desired inlet pressure, the excess pressurized air is then evacuated through the by-pass opening so as to maintain a substantially constant air pressure at the inlet and thus a substantially constant inlet airflow volume rate with a variable outlet airflow volume rate.

摘要翻译： 用于空气处理系统的恒定空气压力单元。 该单元包括具有用于将加压空气进入壳体的进气口的壳体。 壳体具有在其中具有旁路开口的顶壁，并且门可移位地保持在旁路开口上。 门具有预定的负载，由此当壳体中的空气压力等于提升负载所需的压力时，使门从旁路开口离开。 门载荷限定了最大的壳体压力。 在入口处的压力开始增加到高于预定的最大外壳压力的情况下，门升高并绕过过量的加压空气，从而限制入口和壳体的压力。 在推论单元中，包括用于释放空气的出气口。 在入口和出口之间限定加压气流路径。 通过使用可调节的限制器叶片限制出口气流，其可开始增加壳体中的压力。 随着所选入口压力的门载荷被选择，然后将过量的加压空气通过旁路开口排出，以便在入口处保持基本上恒定的空气压力，从而保持具有可变出口气流的基本恒定的入​​口气流体积速率 体积率。

公开(公告)号：US4501389A

公开(公告)日：1985-02-26

申请号：US504179

申请日：1983-06-14

申请人： Stanley Kolt

发明人： Stanley Kolt

IPC分类号： F23L17/10 ,  F24F7/02 ,  F24F11/04 ,  F24F11/053 ,  F24F13/14 ,  F24F13/16

CPC分类号： F24F7/025 ,  F23L17/10 ,  F24F11/043 ,  F24F11/053 ,  F24F13/14 ,  F24F13/1413 ,  F24F13/1426 ,  F24F2013/146

摘要： An automatic temperature and pressure responsive damper assembly for use within the conduit of a ventilating system designed to exhaust the air from a confined space to the atmosphere when the confined space reaches a preselected temperature or when the pressure in the confined space is greater than that in the conduit adjacent to the atmosphere. The damper assembly includes at least one vane pivotally mounted within the conduit, preferably two, the vane or vanes being mounted so that they are movable between a generally opened position, wherein air can pass freely through the conduit, and a generally closed position, wherein air passage through the conduit is blocked. A temperature responsive drive assembly that detects the temperature within the conduit is mounted therein and acts upon the vane or vanes is provided such that a change in temperature and expansion of the temperature responsive drive assembly causes the vanes to move to their opened position. Biasing means are provided for urging the vane or vanes when subjected to the aforementioned differential in pressure to their normally closed position.

摘要翻译： 一种自动温度和压力响应阻尼器组件，用于在通风系统的管道内使用，该通风系统设计成当密闭空间达到预选温度时或当密闭空间中的压力大于密闭空间中的压力时，将空气从密闭空间排出到大气中 与大气相邻的导管。 阻尼器组件包括枢转地安装在导管内的至少一个叶片，优选地两个，叶片或叶片被安装成使得它们可以在大体上打开的位置之间移动，其中空气可以自由地通过导管和大致关闭的位置，其中 通过导管的空气通道被阻塞。 检测管道内的温度的温度响应驱动组件被安装在其中并作用在叶片或叶片上，使得温度变化和温度响应驱动组件的膨胀导致叶片移动到其打开位置。 设有偏压装置，用于在经受上述压差差到其常闭位置时推动叶片或叶片。

公开(公告)号：US4315415A

公开(公告)日：1982-02-16

申请号：US68487

申请日：1979-08-21

申请人： Roy J. Wilson

发明人： Roy J. Wilson

IPC分类号： F24F3/044 ,  F24F11/04 ,  F25D23/00

CPC分类号： F24F11/043 ,  F24F3/0442 ,  Y10S62/16 ,  Y10T137/7903

摘要： An air conditioning unit mounting curb adapted for flat roof-top mounting with provisions for ducts for passage of air to and from an air conditioning unit from and to a plurality of rooms immediately subadjacent and spaced below the roof top. The mounting curb is comprised of a rectangular outer perimeter, a closed bottom, a wall dividing the curb into two plenums, and at least one opening in one of the plenums for supply of air to the rooms and at least one opening in the second plenum for return air from said rooms. The improvement in the mounting curb comprises a bypass means between the plenums, which is responsive to pressure differential acting thereon, providing a variable air volume system. The bypass means consists of an opening in the dividing wall, a damper blade covering the opening and hingeably connected to the return air side of the dividing wall, a lever attached at one end to the damper blade and at the opposite end thereof to an axle rod, which extends through the curb. An adjustable counterweight is provided on the end of the rod to yieldably maintain the damper blade in the closed position.

摘要翻译： 一种用于平顶屋顶安装的空调单元安装路基，其具有用于将空气从空调单元通往空气单元的空气管道的空气调节装置，该空间单元直接位于屋顶顶部下方并间隔开的多个房间中。 安装路缘石由矩形的外周边，封闭的底部，将路缘石分成两个增压室的墙壁，以及在其中一个通风室中的至少一个开口，用于向房间供应空气，并在第二增压室中提供至少一个开口 用于从所述房间返回空气。 安装路缘石的改进包括在充气室之间的旁路装置，其响应于作用在其上的压力差，提供可变风量系统。 旁路装置包括分隔壁中的开口，覆盖开口并可铰接地连接到分隔壁的返回空气侧的阻尼器叶片，一端连接到阻尼器叶片并且在其相对端处连接到轴的杠杆 杆，延伸通过路缘石。 在杆的端部设置可调配重，以可靠地将阻尼叶片保持在关闭位置。

公开(公告)号：US4116213A

公开(公告)日：1978-09-26

申请号：US717346

申请日：1976-08-24

申请人： Masaaki Kamezaki

发明人： Masaaki Kamezaki

IPC分类号： F25D23/00 ,  F24F11/04 ,  F25D17/04 ,  F16K17/18

CPC分类号： F24F11/043 ,  F25D17/047 ,  Y10T137/698 ,  Y10T137/778

摘要： A regulator of air pressure within a hot or cold storage chamber which comprises a damper and frames. The damper is disposed within an opening provided at a wall of the storage chamber defining an air passage, and the frames are airtightly in contact with peripheral surfaces of the opening and the damper at the inside and outside of the storage chamber to close the air passage. The damper and either one of the frames are moveable either inside or outside direction of the storage chamber in accordance with variations of air pressure within the storage chamber to thereby release the sealing of the air passage and establish pressure equilibrium between the inside and outside of the storage chamber.

摘要翻译： 在热或冷储存室内的空气压力调节器，其包括阻尼器和框架。 阻尼器设置在设置在存储室的壁的开口中，限定空气通道，并且框架在储存室的内部和外部气密地与开口的外周表面和阻尼器接触，以关闭空气通道 。 阻尼器和框架中的任一个可以根据存储室内的空气压力的变化而在储存室的内部或外部方向上移动，从而释放空气通道的密封并建立在内部和外部之间的压力平衡 储存室。