초록 ▼

A valve (1) has a valve housing (2) with an inlet (3) and outlet (4), a valve body (5), provided with an essentially cylindrical passage (6) and pivotally mounted in the housing (2). Essentially plane walls, defining chambers between them and provided with through openings (11; 11') are arranged in

A valve (1) has a valve housing (2) with an inlet (3) and outlet (4), a valve body (5), provided with an essentially cylindrical passage (6) and pivotally mounted in the housing (2). Essentially plane walls, defining chambers between them and provided with through openings (11; 11') are arranged in the passage (6). Upon opening the valve the inlet connects solely with one chamber, which via wall openings and intermediate chambers connects with the chamber opposite and the latter with the outlet. During the successive opening sequence of the valve more and more chambers and finally all chambers are made to connect with the inlet and the outlet respectively. The device has at least one pair of intersecting walls (8a, 8b; 9a, 9b, 10a, 10b). These are located in the passage (6), so that two opposing chambers (K1, K4; k1, k9) situated nearest to the inlet (3) and the outlet (4) respectively lie symmetrically in relation to a center plane, in which the central axis (6a) of the passage is situated during the rotational movement vice-versa (5) between the opened and the closed position and vice-versa.

대표청구항 ▼

1. Device in a valve (1) comprising a valve housing (2) with inlet (3) and outlet (4) preferably arranged directly opposite one another on opposite sides of the housing (2) and in the valve housing (2), between the inlet (3) and the outlet (4), a valve body (5), provided with an essentially cylindri

1. Device in a valve (1) comprising a valve housing (2) with inlet (3) and outlet (4) preferably arranged directly opposite one another on opposite sides of the housing (2) and in the valve housing (2), between the inlet (3) and the outlet (4), a valve body (5), provided with an essentially cylindrical passage (6) and pivotally mounted in the housing (2) so that with the valve (1) in the fully open position the passage (6) together with the inlet (3) and outlet (4) lie in line with one another, essentially plane walls, defining chambers between them and provided with through openings (11; 11') being arranged in the passage (6), and the inlet, at the commencement of the valve opening movement, connecting solely with one chamber, which via wall openings and intermediate chambers connects with the chamber opposite and the latter with the outlet, with more and more chambers and finally all chambers being made to connect with the inlet and the outlet respectively during the successive opening sequence of the valve, characterised in that the device comprises at least one pair of intersecting walls (8a, 8b; 9a, 9b, 10a, 10b), which are located in the passage (6), so that two opposing chambers (K1,K4;k1,k9) situated nearest to the inlet and the outlet respectively lie symmetrically in relation to a centre plane, in which the central axis (6a) of the passage is situated during the rotational movement of the valve body (5) between the open and the closed position and vice-versa, so that a flow of medium flowing into the chamber (K1; k1) lying nearest to the inlet by way of the openings (11; 11') in the walls (8a, 8b; 9a, 9b, 10a, 10b) is divided up into a plurality of medium flows, which are combined in the chamber (K4; k9) situated nearest to the outlet, resulting in a pressure gradient. 2. Device according to claim 1, characterised in that the device has two pairs of intersecting walls (9a, 9b, 10a, 10b), which are in parallel pairs and the lines of intersection (9c, 10c) of which are situated on either side of and parallel with the centre-line (6a) of the passage (6). 3. Device according to claim 1, characterised in that the openings (11) are slit-shaped. 4. Device according to claim 3, characterised in that the slits are uniformly inclined in relation to the central axis of the passage, preferably in such a way that in the case of two adjacent walls they form a right angle with one another. 5. Device according to claim 1, characterised in that the openings (11') are circular ducts. 6. Method in a valve (1) with a valve housing (2) with a valve body (5), pivotally mounted therein and with an essentially cylindrical passage (6), which with the valve (1) in the fully open position lies in line with inlet (3) and outlet (4) located on opposite sides of the housing, characterised in that at least one pair of intersecting, essentially plane walls (8a, 8b; 9a, 9b, 10a, 10b) are located in the passage (6) and are provided with through-flow openings (11; 11'), the walls (8a, 8b; 9a, 9b, 10a, 10b) being oriented so that two opposing chambers (K1, K4; k1-k9), defined by intersecting plane walls and by the cylindrical wall of the passage, are situated symmetrically in relation to the inlet (3) and the outlet (4), a flow of medium being introduced into the chamber (K1; k1) situated nearest to the inlet to be divided up via the openings (11; 11') in the walls (8a, 8b; 9a, 9b, 10a, 10b) into a plurality of medium flows so as to produce a pressure gradient, which are then combined in the chamber (K4; k9) situated nearest to the outlet. 7. Method according to claim 6, characterised in that two pairs of intersecting walls (9a, 9b, 10a, 10b) are located with walls in parallel pairs and that these are aligned so that the intersecting walls or lines of intersection (9c, 10c) are located on either side of and parallel with the centre-line (6a) of the passage.