HOMOGENIZATION VALVE

Description

[0001] The present invention relates to a homogenizing valve according to the preamble of claim 1 and to a further homogenizing valve according to the preamble of claim 19.

[0002] Homogenizing valves of this type, known, for example, from US 6,502,979 B1 or JP S62,1444 A, serve to uniformly separate the different components in fruit juices, dairy products, or the like, and to distribute them homogeneously within the medium. For this purpose, the medium to be homogenized is passed under high pressure (usually greater than 150 bar) over a shearing edge, behind which the medium expands, thereby effectively breaking down fruit fibers in fruit juice or fat droplets in emulsions such as milk. US 6502,979 discloses a homogenizing valve according to the preamble of claims 1 and 19.

[0003] Especially when using high pressures for homogenization, large adjustment forces are necessary to set a homogenization gap in the homogenization valve. These large adjustment forces result from the operating pressure acting on pressurized surfaces of the valve body in the adjustment direction.

[0004] The object of the present invention is to provide a homogenizing valve whose valve body can be controlled or moved with significantly lower adjusting forces.

[0005] This problem is solved by a homogenizing valve having the features of claim 1.

[0006] The homogenizing valve according to the invention for a medium to be homogenized under system pressure has a valve housing with an inlet channel and an outlet channel for the medium.

[0007] The homogenizing valve further comprises a valve seat arranged in the valve housing with a receptacle through which a valve body extends movably in the direction of its longitudinal axis.

[0008] A pressure chamber connected to the inlet channel is molded into the valve seat recess and / or the outer surface of the valve body.

[0009] Furthermore, an actuating unit is provided, which is operatively connected to the valve body. The axial position of the valve body within the mounting can be adjusted using this actuating unit. Axial movement is defined as movement axially to an imaginary central axis of the mounting.

[0010] By moving the valve body in the valve seat, the flow resistance from the inlet channel to the outlet channel can be adjusted.

[0011] Between the inner wall of the valve seat forming the intake and the valve body, on both sides of the pressure chamber, viewed in the direction of displacement of the valve body, a shear gap is formed by a knife edge and a conically shaped wall area opposite the knife edge, and an expansion chamber is formed, which is provided downstream in the direction of flow behind the shear gap and is connected to the outlet channel.

[0012] By arranging such a shear gap on both sides of the pressure chamber, virtually no net force acts on the movable valve body in the direction of the longitudinal axis of the valve body, which corresponds to the direction of movement of the valve body.

[0013] Accordingly, the shear gap can be adjusted with extremely little effort by moving the valve body using the actuating unit.

[0014] Advantageous embodiments of the invention are the subject of the dependent claims.

[0015] According to an advantageous embodiment, the length of a first knife edge near the actuating unit is greater in the circumferential direction than the length of a second knife edge, which is located away from the actuating unit.

[0016] This allows for extremely easy installation of the valve body into the valve seat in the axial direction.

[0017] According to a preferred embodiment, the knife edges are doubly conical when viewed in the direction of the longitudinal axis of the valve body. According to a first preferred embodiment, the knife edges are positioned on an outer surface of the valve body between areas of the receptacle that are conically shaped in the direction of displacement of the valve body.

[0018] In particular, the shaping of the knife edges on the outer surface of the valve body is possible in an extremely precise manner during the shaping of the valve body.

[0019] In another design variant, the knife edges are formed as a separate component attached to the outer surface of the valve body. This design allows the valve body components to be manufactured from different materials. In particular, the knife edges can be made of a particularly hard material to further increase their service life.

[0020] According to an alternative design variant, a reverse arrangement is also conceivable, in which the knife edges are positioned on an inner surface of the valve seat between conically shaped areas of the outer surface of the valve body in the direction of displacement of the valve body.

[0021] Both design variants allow for easy adjustment of the shear gap by moving the valve body in the valve seat.

[0022] According to a further preferred embodiment, guide surfaces are provided on the inner surfaces of the valve seat and the outer surfaces of the valve body, wherein grooves connected to the respective expansion chamber are provided on the guide surfaces of the valve seat and / or the valve body.

[0023] The grooves cause an additional counter-flow of the expanded medium by channeling the medium as it enters the grooves from the expansion chamber.

[0024] According to a preferred embodiment, the grooves extend linearly parallel to the direction of movement of the valve body. A curved groove configuration is also conceivable.

[0025] According to a preferred embodiment, the grooves are formed into the guide surfaces of the valve body.

[0026] In an alternative design variant, the grooves are formed into the guide surface of the valve seat.

[0027] According to a further preferred embodiment, the guide surfaces of the valve body and the valve seat are conically shaped in the direction of the longitudinal axis of the valve body.

[0028] In an alternative design variant, the guide surfaces of the valve body and the valve seat are cylindrically shaped in the direction of the longitudinal axis of the valve body.

[0029] This design variant allows for even more precise guidance of the valve body in the valve seat.

[0030] According to another preferred embodiment, channels connected to the outlet are provided in the valve housing downstream of the valve body.

[0031] According to a preferred embodiment, these channels lead into a mixing area of ​​the outlet or a mixing chamber upstream of the outlet, wherein a nozzle is arranged upstream in each of the channels, the jet direction of which is aligned with each other.

[0032] These nozzles allow for a mutual flow of the already expanded medium, which further increases the quality of homogenization.

[0033] In another preferred embodiment, the diameter of the conically shaped receptacle and the part of the valve body with a conically shaped outer surface increases towards the actuating unit.

[0034] The valve seat is preferably installed in a recess of the valve housing in a way that prevents movement.

[0035] It is also conceivable, as an alternative design variant, to form the valve seat as part of the valve housing.

[0036] In another preferred embodiment, an elastic assembly is arranged between the actuating unit and the valve body.

[0037] The elastic assembly, preferably designed as a spring assembly with at least two disc springs, thus enables the simple prevention of clogging in the pressure chamber, since when the operating pressure rises, the valve body is briefly moved towards the actuating unit to relieve the pressure due to the different surface areas of the knife edges on both sides of the pressure chamber, which briefly increases the gap height until the initial operating pressure in the pressure chamber is reached again and consequently the valve body is automatically pushed back into its initial position by the force of the elastic assembly.

[0038] Another alternative embodiment of a homogenizing valve according to the invention has a valve housing with an outlet channel for the medium and a valve seat arranged in the valve housing along a displacement axis with an at least partially conically shaped receptacle in which a valve body fixed to the valve housing with an at least partially conically shaped outer shell surface and an inlet channel is mounted.

[0039] A pressure chamber is connected to the inlet channel, which is molded into the receptacle of the valve seat and / or the outer surface of the valve body.

[0040] The valve seat is operatively connected to an actuating unit. The flow of the medium from the inlet channel to the outlet channel can be regulated here by the interaction of the valve body and the valve seat.

[0041] Here too, between the inner wall of the valve seat forming the intake and the valve body, in the direction of displacement of the valve body, a shear gap is formed on both sides of the pressure chamber by a knife edge and a wall area shaped conically opposite it, and in the direction of flow downstream behind the shear gap an expansion chamber connected to the outlet channel is formed.

[0042] In this design variant as well, the central feeding of the medium to be homogenized through the valve body into the pressure chamber, from where the medium flows further over the knife edges in the direction of movement of the valve body, results in an adjustment of the shear gap that requires very little force, here by moving the valve seat.

[0043] Preferred embodiments are explained in more detail below with reference to the accompanying drawings. They show: Figure 1 shows a schematic sectional view through an embodiment of a homogenizing valve according to the invention with a fixed valve seat and an axially movable valve body; Figure 2 shows one of the Figure 1 corresponding sectional view with top view of an uncut valve body, Figure 3 one of the Figure 1 Figure 4 shows a corresponding sectional view of another embodiment of a homogenizing valve with additional nozzles; Figure 5 shows an isometric close-up view of an embodiment of a valve body with molded-on knife edges and grooved guide surfaces; Figure 5 shows a sectional view through the valve body. Figure 4 shown valve body inserted into a valve seat, Figure 6 an isometric sectional view through a valve seat with knife edges and guide surfaces arranged in the receiving space with grooves provided therein, Figure 7 a sectional view through the in Figure 6shown valve seat with valve body inserted therein with conically shaped outer surface, Figures 8 and 9 Figures 5 and 7 corresponding sectional views through further embodiments of valve seats and valve bodies received therein, Figure 10 a schematic sectional view of a further embodiment of a homogenizing valve according to the invention with movable valve seat and fixed valve body and Figure 11 one of the Figure 1 Corresponding representation of a further embodiment of a homogenizing valve according to the invention with an additional elastic component between the valve body and the actuating unit.

[0044] In the following figure descriptions, terms such as top, bottom, left, right, front, back, etc., refer exclusively to the exemplary representation and position of the homogenizing valve, valve housing, valve seat, valve body, knife edges, expansion chamber, and the like as chosen in the respective figures. These terms are not to be understood as restrictive; that is, these references may change due to different operating positions, mirror-symmetrical design, or similar factors.

[0045] In Figure 1 Reference numeral 1 denotes a total embodiment of a homogenizing valve according to the invention.

[0046] The homogenizing valve 1 has a valve body 2 with an inlet channel 21 and an outlet channel 22 for the medium to be homogenized.

[0047] A valve seat 4 is arranged in the valve housing 2. The valve seat 4 has a receptacle 42 through which a valve body 3 of the homogenizing valve 1 extends movably in the direction of its longitudinal axis L.

[0048] The valve seat 4 can be used as shown in Figure 1 shown to be designed as a separate component which is installed in the valve housing 2 and is sealed against the valve housing 2 by means of static high-pressure seals 13.

[0049] It is also conceivable to form the valve seat 4 as a single piece with the valve housing 2.

[0050] The receptacle 42 of the valve seat 4 is designed as a through-opening through which a valve area 33 of the valve body 3 extends.

[0051] Using an adjusting unit 5, for example in the form of a manually rotatable screw, as is the case in Figure 1 As shown, the axial position of the valve body 3 in the receptacle 42 is adjustable.

[0052] In the illustrated embodiment, the actuating unit 5 is screwed into a guide housing 6, the body 61 of which is firmly screwed to the valve housing 2 by means of fixing screws 62.

[0053] In the embodiment shown here, the guide housing 6 has a receptacle 63 that extends into a receptacle in the valve housing 2. The inner surfaces of this receptacle 63 serve as guide surfaces for a head 31 of the valve body 3, whose guide sleeve 312 forms sliding surfaces that are displaceable on the inner surface of the receptacle 63 of the guide housing 6 in the direction of the longitudinal axis L of the valve body 3. The longitudinal axis L is also the (imaginary) central axis of the receptacle 42.

[0054] To seal the head 31 of the valve body 3 against the inner walls of the receptacle 63 of the guide housing 6, the guide sleeve 312 of the head 31 of the valve body 3 is provided with a seal receptacle groove 313 in which a dynamic low-pressure seal 12 is received.

[0055] The end face 311 of the head 31 of the valve body 3 serves as a contact surface for an end face of the actuating unit 5.

[0056] What next in the Figure 1 and 2 As shown, a pressure chamber 7 connected to the inlet channel 21 is formed in the recess 42 of the valve seat 4 and / or the outer surface 33 of the valve body 3.

[0057] During the Figure 1 and 2 In the illustrated embodiment, the receptacle 42 of the valve seat 4 is widened in a ring shape around a pressure chamber inlet channel 41 to form the pressure chamber 7.

[0058] Between the inner wall of the valve seat 4 forming the receptacle 42 and the valve body 3, as shown in the Figure 1 and 2 As further shown, on both sides of the pressure chamber 7 a shear gap is formed by a knife edge 8a, 8b and a conically shaped wall area opposite this, and downstream in the flow direction behind the shear gap an expansion chamber 9 connected to the outlet channel 22 is formed.

[0059] Since the medium to be homogenized is introduced into the pressure chamber 7 under high pressure, in particular more than 150 bar, via the inlet channel 21, the knife edges 8a, 8b provided on both sides of the pressure chamber 7 ensure that virtually no force is exerted on the movable valve body 3 by the high-pressure medium in the direction of movement of the valve body 3, i.e. in the direction of a longitudinal axis L.

[0060] The shear gap is adjusted by moving the valve body 3 relative to the valve seat 4. The shear gap dimension between the knife edges 8a, 8b and the conically shaped wall areas is the same for both sides.

[0061] Depending on the medium to be homogenized, a preferred setting of the gap dimension is preferably in a range between 0.01 mm and 0.1 mm.

[0062] In all of the illustrated embodiments, the circumferential length of the knife edge 8a closest to the actuating unit 5 is greater than the length of the knife edge 8b furthest from the actuating unit 5. Accordingly, the inner diameter of the receptacle 42 in the area near the actuating unit 5 is larger than the inner diameter of the receptacle 42 furthest from the actuating unit 5.

[0063] The knife edges 8a, 8b are preferably double conical, with a front flank narrowing the shear gap from the pressure chamber 7, a short section of constant radial width adjoining this in the direction of the longitudinal axis L of the valve body 3 and a rear flank adjoining this section, widening the shear gap towards the expansion chamber 9.

[0064] While in the Figures 1 - 5 In the illustrated embodiments of the homogenizing valve 1, the knife edges 8a, 8b are positioned on an outer surface of the valve body 3 between conically shaped areas of the receptacle 42 in the direction of displacement of the valve body 3. Figures 6 and 7 In the illustrated embodiment, the valve area 33' of the valve body 3 is linearly conical.

[0065] The knife edges 8a, 8b are positioned here on an inner surface of the valve seat 4 forming the receptacle 42 between conically shaped areas of the outer surface of the valve body 3 in the direction of displacement of the valve body 3.

[0066] The ring-shaped expansion chamber 9 is also present in the Figures 6 and 7 The illustrated embodiment is formed into the inner wall of the valve seat 4' forming the receptacle 42'.

[0067] In both versions, the knife edges 8a, 8b can be attached to the respective component, i.e., to the valve body 3, during the process described below. Figures 1 to 5 shown embodiment variant or molded onto the valve seat 4 or designed as a separate component that is attached to the valve body 3 or to the valve seat 4.

[0068] What next in the Figures 2 and 4As can be clearly seen, guide surfaces 34, 35, 43, 44 are provided on the inner surfaces of the valve seat 4 and the outer surfaces of the valve body 3, wherein grooves 10 connected to the respective expansion chamber 9 are provided on the guide surfaces 43, 44 of the valve seat 4 or guide surfaces 34, 35 of the valve body 3.

[0069] These grooves 10 are located in the Figures 1 - 5 In the illustrated embodiment of the homogenizing valve 1, the grooves are incorporated into the guide surfaces 34, 35 of the valve body 3. The grooves 10 preferably extend linearly parallel to the direction of movement of the valve body 3.

[0070] As in Figure 6 As can be clearly seen, in the alternative design variant of the homogenizing valve 1, the grooves 10 are formed into the guide surfaces 43, 44 of the valve seat 4.

[0071] What next in the Figures 1 to 8As can be seen, the guide surfaces 34, 35, 43, 44 of the valve body 3 and the valve seat 4 are conically shaped in the direction of the longitudinal axis L of the valve body 3.

[0072] At the in Figure 9 In the exemplary further embodiment shown, the guide surfaces 34‴, 35‴, 43‴ and 44‴ are cylindrical, wherein the diameter of the valve body 3 and, correspondingly, the receptacle 42 of the valve seat 4 in the area of ​​the guide surfaces 34, 43‴ is larger than the diameter in the area of ​​the guide surfaces 35‴, 44‴.

[0073] The design of these guide surfaces 34‴, 35‴, 43‴, 44‴ as cylindrical surfaces enables a further improved guidance of the valve body 3 in the valve seat 4, because in this case the guide surfaces are in sliding contact with the receptacle 42 in every position of the valve body 3.

[0074] What's next in the Figure 3In the embodiment shown, channels 23, 24 are preferably provided in the valve housing 2 downstream of the valve body 3, which are connected to the outlet 22.

[0075] These channels 23, 24 lead into a mixing area of ​​the outlet 22 or a mixing chamber 25 upstream of the outlet, so that the medium to be homogenized is brought together again in the mixing area of ​​the outlet 22 or in the mixing chamber 25 upstream of it after expansion in the two expansion chambers 9 by mutual flow.

[0076] Preferably, a nozzle 11 is arranged in each of the channels 23, 24, wherein the jet directions of the nozzles 11 are aligned such that the two media streams guided through the respective nozzles 11 collide at an accelerated rate in the mixing area of ​​the outlet 22 or in the mixing chamber 25 upstream of it.

[0077] Furthermore, a mutual flow of partial flows of the medium also takes place in the two expansion chambers 9, there in the transition area to the grooves 10, through which the medium is discharged from the area of ​​the valve body 3 into the channels 23, 24.

[0078] It is also conceivable, as exemplified in the Figure 8 As shown, the position of the knife edges 8a, 8b and the guide surfaces 34, 35, 43, 44 is to be swapped, so that the medium, after entering the pressure chamber, is first guided through the grooves 10 and then only via the knife edges 8a, 8b into the respective expansion chambers 9.

[0079] At the in Figure 10In the further embodiment shown, an elastic assembly 15 is arranged between the actuating unit 5 and the valve body 3. This elastic assembly 15, designed here as a spring assembly with several, in particular at least two, disc springs, serves to ensure that, in the event of an excessively high operating pressure during operation, for example due to a blockage in the pressure chamber 7, the valve body 3 shifts against the force of the elastic assembly 15 to relieve the pressure, thereby increasing the gap height until the operating pressure returns to its initial value, so that the valve body 3 is pressed back into its initial position by the elastic assembly 15.

[0080] The movement of the valve body 3 against the force of the elastic assembly 15 occurs due to the difference between the area of ​​the knife edge 8a on the side of the pressure chamber 7 near the actuating unit 5 and the area of ​​the knife edge 8b on the side of the pressure chamber 7 furthest from the actuating unit 5, wherein the area of ​​the knife edge 8a on the side of the pressure chamber 7 near the actuating unit 5 is larger than the area of ​​the knife edge 8b on the side of the pressure chamber 7 furthest from the actuating unit 5.

[0081] In this case, adjusting the actuating unit 5 primarily allows for an adjustment of the holding force of the elastic assembly 15.

[0082] A further variant of such a homogenizing valve 100 is described in Figure 11 depicted.

[0083] In this embodiment, the valve housing 120 is designed with outlet channels 122, 123 for the medium. A valve seat 140 is provided in the valve housing 120, arranged along a displacement axis L, and also with a receptacle 142 that is at least partially conical. A valve body 130, fixed to the valve housing 120 in this case, is mounted in this receptacle. The valve body has an outer surface 133 that is at least partially conical and an inlet 131.

[0084] The inlet 131 is designed here as a channel formed along the longitudinal axis from an end face into the valve body, from the end of which several channels branch off radially or nearly radially into a pressure chamber 170, which is formed in the receptacle 142 of the valve seat 140 and / or the outer surface 133 of the valve body 130. The pressure chamber 170 is also designed in an annular groove shape, as in the Figures 1 to 9The illustrated design variants. The material recess for forming the pressure chamber 170 is preferably provided in the valve body 130.

[0085] Furthermore, in this embodiment, an actuating unit 150 is operatively connected to the valve seat 140. The medium flow from the inlet 131 to the outlet channel 122 in the valve housing 120 can be regulated by moving the valve seat 140 relative to the valve body 130, which is fixedly mounted on the valve housing 120.

[0086] Here too, between the inner wall of the valve seat 140 forming the intake 142 and the valve body 130 in the displacement direction of the valve body 130, a shear gap is formed on both sides of the pressure chamber 170 by a knife edge 8a, 8b and a wall area shaped conically opposite it, and downstream in the flow direction behind the shear gap an expansion chamber 9 connected to the outlet channel 122 is formed.

[0087] Furthermore, in this embodiment variant, 9 grooves 10 are provided downstream of the expansion chambers, which can be formed either on the outer surface 133 of the valve body 130 or on the inner surface of the valve seat 140 forming the receptacle 142.

[0088] In the illustrated embodiment, the knife edges 8a, 8b are formed by the edges of the outer surface 133 of the valve body 130 at the transition to the expansion chambers 9. Reference symbol list

[0089] 1 Homogenizing valve 2 Valve housing 21 Inlet channel 22 Output channel 23 Channel 24 Channel 25 Mixing chamber 26 Ring chamber 3 Valve body 31 Head 311 End face 312 Guide sleeve 313 Sealing groove 32 Transition area 33 Valve area 34, 34', 34" Guide surface 35, 35', 35" Guide surface 36 Guide pin 4 Valve seat 41 Pressure chamber inlet channel 42 Receptacle 43, 43', 43" Guide surface 5 Actuating unit 51 Thread 52 Guide holder 6 Guide housing 61 Body 62 Fixing screw 63 Mount 7 Pressure chamber 8a, b Knife edge 9 Expansion chamber 10 Groove 11 Nozzle 12 Dynamic low-pressure seal 13 Static high-pressure seal 14 Low-pressure seal 15 Elastic assembly 100 homogenizing valve 120 Valve housing 121 Low pressure chamber 122 Outlet channel 123 Outlet channel 130 Valve body 131 Inlet 132 Neck 133 Outer surface 134 Head 135 Conical area 140 Valve seat 141 Conical section 142 Receptacle 143 Guide surface 144 Head 145 Channel 160 Guide housing 161 Body 162 Fixing screw 163 Valve seat receptacle x, y direction L longitudinal axis

Claims

1. Homogenizing valve (1) for a medium to be homogenized which is under system pressure, comprising, - a valve housing (2) having at least one inlet channel (21) and at least one outlet channel (22) for the medium, - a valve seat (4) arranged in the valve housing (2) with a receptacle (42) through which a valve body (3) extends movably in the direction of its longitudinal axis (L), - a pressure chamber (7) which is connected to the inlet channel (21) and is formed in the receptacle (42) of the valve seat (4) and / or the outer jacket surface (33) of the valve body (3), - an adjustment unit (5) which is operatively connected to the valve body (3) and with which the axial position of the valve body (3) in the receptacle (42) can be adjusted, - a flow resistance within the receptacle (42) can be regulated by displacing the valve body (3) in the valve seat (4), characterized in that - between the inner wall of the valve seat (4) forming the receptacle (42) and the valve body (3), a shear gap, formed by a blade edge (8a, 8b) and a wall region which is conically shaped relative thereto, is formed in each case on both sides of the pressure chamber (7) in the direction of displacement of the valve body (3), and an expansion chamber (9) connected to the outlet channel (22) is formed downstream of the shear gap in the direction of flow.

2. Homogenizing valve (1) according to claim 1, characterized in that the length of a first of the blade edges (8a) close to the adjustment unit (5) is greater in the circumferential direction than the length of a second of the blade edges (8b) which is arranged at a distance from the adjustment unit (5).

3. Homogenizing valve (1) according to claim 1 or 2, characterized in that the blade edges (8a, 8b) are double-conical in shape when viewed in the direction of the longitudinal axis (L) of the valve body (3).

4. Homogenizing valve (1) according to one of claims 1 to 3, characterized in that the blade edges (8a, 8b) are positioned, in particular integrally formed or fastened, on an outer jacket surface of the valve body (3) between conically shaped regions of the receptacle (42) in the direction of displacement of the valve body (3).

5. Homogenizing valve (1) according to one of claims 1 to 3, characterized in that the blade edges (8a, 8b) are positioned on an inner surface of the valve seat (4) between regions of the outer jacket surface of the valve body (3) which are conically shaped in the direction of displacement of the valve body (3), in particular are integrally formed or fastened.

6. Homogenizing valve (1) according to one of the preceding claims, characterized in that guide surfaces (34, 35, 43, 44) are provided on the inner surfaces of the valve seat (4) and outer jacket surfaces of the valve body (3), wherein grooves (10) connected to the respective expansion chamber (9) are provided on the guide surfaces (34, 35, 43, 44) of the valve seat (4) and / or of the valve body (3).

7. Homogenizing valve (1) according to claim 6, characterized in that the grooves (10) extend linearly parallel to the direction of movement of the valve body (3).

8. Homogenizing valve (1) according to claim 6, characterized in that the grooves (10) extend in a curved manner with respect to the direction of movement of the valve body (3).

9. Homogenizing valve (1) according to one of claims 6 to 8, characterized in that the grooves (10) are formed in the guide surfaces (33, 34) of the valve body (3).

10. Homogenizing valve (1) according to one of claims 6 to 8, characterized in that the grooves (10) are formed in the guide surfaces (43, 44) of the valve seat (4).

11. Homogenizing valve (1) according to one of claims 6 to 10, characterized in that the guide surfaces (34, 35, 43, 44) of the valve body (3) and the valve seat (4) are conically shaped in the direction of the longitudinal axis (L) of the valve body (3).

12. Homogenizing valve (1) according to one of claims 6 to 10, characterized in that the guide surfaces (34, 35, 43, 44) of the valve body (3) and the valve seat (4) are cylindrically shaped in the direction of the longitudinal axis (L) of the valve body (3).

13. Homogenizing valve (1) according to one of the preceding claims, characterized in that channels (23, 24) connected to the outlet (22) are provided in the valve housing (2) downstream of the valve body (3).

14. Homogenizing valve (1) according to claim 13, characterized in that the channels (23, 24) open into a mixing region of the outlet (22) or a mixing chamber (25) upstream of the outlet.

15. Homogenizing valve (1) according to one of the preceding claims, characterized in that a diameter of the conically shaped receptacle (42) and of the part of the valve body (3) formed with a conically shaped outer jacket surface (33) is designed to increase towards the adjustment unit (5).

16. Homogenizing valve (1) according to one of the preceding claims, characterized in that the valve seat (4) is installed in a receptacle of the valve housing (2) in such a way that it cannot move or is designed as a component of the valve housing (2).

17. Homogenizing valve (1) according to one of the preceding claims, characterized in that an elastic unit (15) is arranged between the adjustment unit (5) and the valve body (3).

18. Homogenizing valve (1) according to claim 17, characterized in that the elastic unit (15) is designed as a spring assembly having at least two disk springs.

19. Homogenizing valve (100) for a medium to be homogenized which is under system pressure, comprising, - a valve housing (120) with at least one outlet channel (122, 123) for the medium, - a valve seat (140) arranged in the valve housing (120) along an axis of displacement (L) and having an at least partially conically shaped receptacle (142) in which a valve body (130) fixed to the valve housing (120) is mounted with an at least partially conically shaped outer jacket surface (133) and an inlet channel (131), - a pressure chamber (170) connected to the inlet channel (134), which is formed in the receptacle (42) of the valve seat (140) and / or the outer jacket surface (133) of the valve body (130), - an adjustment unit (150) operatively connected to the valve seat (140), - a flow resistance within the receptacle (142) can be regulated by displacing the valve body (130) in the valve seat (140), characterized in that - a shear gap formed by a blade edge (8a, 8b) and a wall region which is conically shaped relative thereto is formed between the inner wall of the valve seat (140) forming the receptacle (42) and the valve body (130) on both sides of the pressure chamber (170) in the direction of displacement of the valve body (130), and an expansion chamber (9) connected to the outlet channel (22) is formed downstream of the shear gap in the direction of flow.