DE1866869U - AIR CONDITIONING UNIT. - Google Patents

Description

»IpUnc Egon Prince RA. 827 622 * 12/27 G2

Munich-Pas ing, December 27, 1962

SpWngo O ^ rbd Quiet Coin Posing

TeIc ^ n 30227 Posfschoc'di'o. Munich 117Q78

IH 326 / 36d Gm

lOUVEAüX ATELIERS LEBRHI (Societe Anonyme) Rue Mouzin, 37 Limy / Belgium

Our reference: I.

, '"Air conditioner"

The subject of the control is a. Air conditioner for installation in an air conditioning system with a fan-fed distribution circuit for the primary air to which several Air conditioners are connected.

With such an air conditioning system, it is possible to close the primary air supply to the devices at will. If a large number of air conditioning units are suddenly shut down, the pressure in the main distribution line decreases closed, which increases the amount of primary air in the units that have remained in operation.

Destination Lei / Sm

The aim of the innovation is the creation of an air conditioner, in which the incoming primary air volume is largely independent of the pressure in the main distribution line is.

According to the invention, this is achieved in that at the inlet of the air conditioning unit a pivotable axis is provided Flap is arranged such that the primary air entering the device, flowing around the flap, on the Flap exerts a torque that a counter-torque generating elastic device is provided which one that depends on the pressure difference in front of and behind the flap defining certain position of the flap, the elastic device and the]? shape of the flap so sized are that the pressure behind the flap and the amount of primary air flowing through the device are approximately constant, and that a damper with a large time constant is provided for damping the movement of the flap.

The inflation is explained below with reference to the Drawing explained by way of example.

The drawing shows a schematic longitudinal section of the Primary air supply line 1 of an air conditioner. The primary air flows through this line in the direction of the arrow 2 and flows around a flap pivotable about an axis 5,

Which

which has two sections 3 and 4 with unequal area, which lie in a plane passing through the axis 5, so that the air exerts a torque on the flap 3, 4 exercises. A lever 6 is attached to the axle 5 outside the supply line. This lever 6 is in a The shoe position is withdrawn by a spring 7 and is connected to a damper 8.

If p. is the pressure in front of the flap and p _{2 is} the pressure behind it, Se is the cross-section of the supply line, Sc is the cross-section of the entire flap and * f is the angle between section 4 and the horizontal, the cross-section So of the opening that remains open is the same

So = Se - Sc.sin * f

and since "is a fine guarding function of the pressure difference P ₁ -P ₂ , So is a decreasing function of the pressure difference P-] -P2»

Since, on the other hand, the amount of air flowing through an opening is proportional to the cross section So of the opening and increases with the pressure difference in front of and behind the opening p ^ - P ₂ , this single rotary flap, which is retracted by a spring, can automatically adjust the flow rate to an approximately constant value be achieved. For this purpose, it is sufficient to design the spring 7 in a suitable manner and the shape of the flap

and

and to choose the tension of the spring accordingly. In order to prevent the valve from vibrating, its movement braked by a damper 8 with a large time constant. The leather 7 can be adjusted to allow the amount of primary air of the device "can be changed as required.

Protection claims

Claims (2)

A.827G22-27.1Ze2 protection claims 1.) Air conditioning unit for installation in an air conditioning system with one of a fan-fed distribution circuit for the primary air to which several air conditioning units are connected, characterized in that, that a flap (5-4) pivotable about an axis (5) is arranged at the entrance of the air-conditioning unit is that the primary air entering the device and flowing around the flap exerts a torque on the flap, that a counter-torque generating elastic device (7) is provided, which one of the pressure difference in front of and behind the flap depending on the specific position of the flap, the elastic means and the lorm of the flap are dimensioned so that the pressure behind the flap and that flowing through the apparatus Primary air volume are approximately constant, and that a damper (8) with a large time constant for damping the Movement of the flap is provided. 2.) Air conditioner according to claim 1, characterized in that the flap has two sections (3, 4) of unequal surface which lie in a plane passing through the axis (5), and that the elastic device has a leather (7) which ai attacks a lever (6) attached to the axis (5). Note: This document {S ^ rsibimg um! Sehutecmspr.) Is the zdetet submitted; you wetefrt vcn ds? W «, version of the original zi ·;.>: - ^: -. Vwr -'- iroj ob. DK; .-ecMSiche % i * s <: * jr, $ the deviation is rwht g? r,; '- The ψ! 5ριϊ · ΐίφΦ • «.- rjs-efw.i'-i ■' · - r " ■■ , - t - .. flr <?; - "<* fr dt»; Λκ .- :. · ί * .Λ '. Sre; .jti; «n iideoimi ur.-b ...- · - ■ eii Iniersssas g-isöhrenff « eingsbsl-.zfs *«. hn. On request wfe-dsn hiievc-n auojt Fofc * cpk »n ?; '.- .. {l: · delivered to the usual praises. Deufschas Patentamt, Ge