DE1085385B - Device for controlling a liquid or gas flow through several jointly pivotable closing flaps - Google Patents

Description

The present invention relates to a device for controlling a liquid or gas flow through a line with a series of closure flaps which are jointly pivotable in the line on pivot pins by an actuating device and which, in the fully open position, lie parallel to the flow. Such devices are known. According to the invention, the closure flaps are made of flexible material. Their front and rear edges are adjusted by the actuating device in such a way that the closing flaps are bent into an S-shape in cross-section in the fully closed position. This achieves the special technical progress that the distance between the closing flaps is gradually larger or smaller than ¹ S and in this way the flow through the line can be adjusted to a greater or lesser extent without the formation of eddies. So far, rigid flaps have been used in such devices, which are rotatably mounted in a line. It was therefore not possible to bend or bend these flaps. The same also applies to such closure flaps which, although S-shaped, are also rigid. For the first time it is possible with the device according to the invention to regulate the strength of the flow without turbulence occurring in the line. In the device according to the invention, namely, the front and rear edges of the closure flaps always run in the direction of the flow in all operating positions and therefore offer no resistance. In all known devices, the throttle and closure flaps are always at an angle to the flow, so that a strong vortex is generated. In the device according to the invention there is thus also the particular advantage that no energy losses occur, as is the case with the known devices. In the device according to the invention, the flow opening can be changed in any desired manner, but without influencing or disturbing the flow itself in any way.

According to the invention, the line in which the closure flaps are located is diagonal opposite bulges provided to a stop for the flaps in completely closed To create position. In the device according to the invention are to change the curvature the closure flaps are provided with flat actuating rods with guide slots which can be moved from the outside for laterally protruding pins on the front and rear edges of the flaps that simultaneously guided in a number of guide slots located on opposite housing walls will.

Control device

a liquid or gas stream

through several jointly pivotable

Flaps

Applicant:

Fuel Firing Limited,

Rex Couvelas Farnham,

Woodley, Reading, Berkshire,

and Edward Francis Daniel Webb,

Wokingham, Berkshire (UK)

Representative: Dr. W. Germershausen, patent attorney, Frankfurt / M., Neue Mainzer Str. 53

Rex Couvelas Farnham, Woodley, Reading, Berkshire, and Edward Francis Daniel Webb, Wokingham,

Berkshire (Great Britain) have been named as the inventor

Further details of the invention are explained in more detail with reference to the drawings as follows:

Fig. 1 is a section on the line 1-1 of Fig. 2 showing the control means according to the invention with the flaps in the closed position;

Fig. 2 is a cross-sectional view taken on line 2-2 of Fig. 1;

FIG. 3 is a section along line 3-3 of FIG. 4 and shows a variant of the control means according to FIG Invention with the flaps in full open position;

FIG. 4 is a cross section taken along line 4-4 of FIG. 3.

In the embodiment of the invention shown in Fig. 1 and 2, a number of flexible

009 550/199

seed flaps 1 horizontally at a distance from each other in a liquid or gas line 2 attached of rectangular cross-section. The flaps 1 extend rectangular in shape extend over the entire width of the line 2 and can be pivoted approximately in its center by means of the pivot pin 3 stored on the side walls of the line 2.

The actuating rods 9, 9 a and 10, 10 a are attached in such a way that their ends extend through slots in the guide plates 12 and 13 forming part of the line 2 into the housing parts 14 and 15, which extend above and below the line 2 are provided. The housing parts 14 and 15 with their partitions 34 and 35 serve to close off the actuating parts and to prevent liquid or gas from escaping from the line.

A hydraulically or manually operated operating rod 16, one end of which extends into a cylinder 36, extends at the other end through a seal 17 in the housing part 15 and is firmly connected to the lower ends of the operating rods 9, 9 a via a connecting part 37, so that the latter are movable in the vertical direction. The vertical movement is transmitted to the actuating rods 10, 10a through the connecting lever 18, 18 α , which is pivotably mounted in its center 19, 19 a in the housing part 14 and rotatable with its ends 20, 20 a and 21, 21a with the upper ends of the Operating rods 9.9 α and 10.10 a are connected.

In the closed position, the flaps 1 are bent in such a way that they are S-shaped in cross section are and assume the position shown in Fig. 1, in which the top and bottom closure flap Place against stops 23 which are formed by bulges 22 in line 2.

To open the line and allow the passage of liquid or gas, the operating rod 16 and with it the operating rods 9, 9 a moved down in the direction of arrow 24, whereby the connecting lever 18, 18 α pivot about their center and the operating rods 10, 10 a in Direction of arrow 25 move upwards. During this movement, they slide along the leading and trailing edges Laterally projecting pins 6 and 7 in the guide slots attached to the flaps 8 and 11 until the flaps 1 are bent straight in the fully open position and, as in FIG. 1 is shown in dashed lines at 26, lie parallel to the direction of flow.

In the variant embodiment shown in FIGS. 3 and 4, the flaps 1 are parallel in one Distance from one another in the liquid or gas line 2 of rectangular cross-section by means of pivot pins 3 stored. The pivot pins 3 extend through the walls of the line 2 and are square provided ends 26 on which double-armed guide levers 27 are attached.

The pins 28 and 29 provided on the front and rear edges of the closure flaps 1 protrude through guide slots 30 in the side walls of the line 2 and engage in slots of the guide lever 27 a.

Lever 31 are mounted with one end on the square of the ends 26 of the pivot 3 and at the other end pivotally connected to rods 32. These latter are via a connector 38 connected to a hydraulically or manually operated operating rod 32 a, which with her the other end in a cylinder 39 is enough. The guide lever 27, the lever 31 and the rods 32 can be housed in tight boxes or housings 40 to prevent leakage of liquid or gas the line 2 to prevent.

If the operating rod 32 α and, with it, the rods 32 are moved in the vertical direction, this is effected this is a sliding of the pins 28 and 29 in the guide slots 30 and consequently bending or Stretching the flaps 1 while opening or closing the line in the same way as in the in Fig. 1 and 2 embodiment shown has been described.

The line 2 has bulges 41 which have the stops 42 against which the top and the bottom flap is in the closed position.

It can therefore be seen that the flaps in each position between the fully open and closed Position have a uniformly curved surface and consequently a uniform flow allow the liquid or gas through the line without causing turbulence.

The invention is not limited to particular means for actuating the closure flaps, so that any other suitable means may be used for this purpose, provided that it leads to one uniform curvature of the flaps leads.

Claims (1)

Patent claims: 1. Device for controlling a liquid or gas flow through a line with a Series of pivots pivoted together in the conduit by an actuator arranged closing flaps, which are parallel to the flow in the fully open position, thereby characterized in that the flaps (1) are made of flexible material and their front and trailing edges are adjusted by the actuator in such a way that the Shutters (1) are bent in the closed position in cross-section S-shaped. 2. Apparatus according to claim 1, characterized in that the line (2) diagonally opposite Bulges (22) to form a stop (23) for the outermost closure flaps (1) in the closed position. 3. Apparatus according to claim 1 and 2, characterized in that the actuating device to change the curvature of the flaps (1) two pairs by one outside the Line attached operating rod (16) and connecting lever (18, 18 α) movable flat operating rods (9, 9 a, 10, 10 a) with guide slots (8) for the front and rear edges of the closure flaps (1) laterally projecting pins (6, 7) are arranged, which at the same time in a series of guide slots (11) located on opposite housing walls will. 4. Apparatus according to claim 1 and 2, characterized in that the actuating device to change the curvature of the flaps outside the conduit (2) on each pivot end (26) of the flaps (1) a double-armed guide lever (27) with in the vicinity slots located at its ends into the slots on the leading and trailing edges of the flaps (1) laterally protruding pins (28, 29), which are simultaneously guided in guide slots (30) arranged in opposite side walls of the line (2), engage and outside the line at each pivot end (26) a lever (31) is attached with one end, while the other end is articulated with it a rod (32) is connected, which is movable via an operating rod (32 a). Considered publications: German Patent Specifications No. 815 876, 629 162, 470 For this purpose 2 sheets of drawings