DE62644C - Parking device for the duct flaps of axial turbines - Google Patents

Description

IMPERIAL

PATENT OFFICE.

The present invention relates to a device for adjusting the closing flaps in the case of axle turbines, in order to shut off the water inflow when entering the ducts can.

The flaps are here by angle levers, which are at the end of the flap axis of rotation are attached, moved in such a way that the opening of the flaps by pressing down one Arm of the angle lever takes place. If the flap has reached its highest position, it is located the opening arm of the angle lever is in its lowest position and prevents it by supporting it on the turbine housing, the flap can be turned further or flipped over.

In order to prevent the flap from rotating backwards, the actuating device is designed in such a way that that every opened flap is held in its position by the next opened one will. · The last opened flap is triggered by the actuator itself on the return movement prevented.

In the accompanying drawing is:

Fig. Ι a basic outline,

Fig. 2 is a Aufrifs of the flap arrangement, and it is drawn in the positions A and -B each an open flap, at C a closed flap.

The flaps g , which can be rotated about pin d, are firmly connected to laterally attached angle levers f, the shorter arm η of which almost falls into the flap plane, while the longer arm m is approximately at right angles to it.

A roller r or any other protruding stop of any shape, rotatable around the turbine axis, in connection with the angle levers f , causes the flaps to open and close.

For the purpose of opening the flaps g , this stop r is turned in such a way that it strikes the longer arm m of the angle lever and depresses it, while, in order to bring about closure, it must strike the shorter arm η by turning in the opposite direction and depress it .

The pegs d each have a slot e, which is attached in such a way that the arm m belonging to the preceding flap and descending when it is opened can slide through it.

When this flap is lifted, the slot rotates with it and comes to rest on the top, so that the first valve cannot be closed without first closing the second more can take place.

So every single flap is held in the open position by the following one; the last, in which the arm m is shortened by so much that it can pass the pin d, the slot e of which has been folded over, is held in place by the stop r itself which rests on the lever arm.

'When the flaps are closed, the stop' r 'only needs to be pressed on the arm η until it is brought into a sufficiently inclined position, whereupon it folds itself over by its own weight and supported by the water pressure.

If pieces of wood or the like should have got into the duct and prevent a flap from closing completely, then only this one flap will not close completely; the stop r nevertheless acts on the arm η of the next and brings it to the end.

Should flaps be opened or closed at different points on the stator at the same time it is only necessary to find several corresponding to these different points To attach stops r.

Claims (1)

Patent claim: A storage device for the duct flaps of axial turbines, characterized in that an angle lever f is arranged on the flap axis of rotation, in which a stop r rotatably mounted around the turbine axis extends the longer arm m, which is approximately at right angles to the flap plane, for the purpose of opening and the shorter arm m, which is almost at right angles to the flap plane the arm η lying on the flap plane is depressed for the purpose of closing the flap, the largest opening of the flap being limited by the longer arm sitting on the turbine housing, and the flap in the open position by a slit conaxial with the axis of rotation of the following flap, the end of the arm is held nt overlapping pin d, the slot of which no longer prevents the closing of the previous flap by moving the end of the longer arm upwards after the flap on the same axis closes. For this purpose ι sheet of drawings.