WO2022161899A1 - Soupape - Google Patents

Soupape Download PDF

Info

Publication number
WO2022161899A1
WO2022161899A1 PCT/EP2022/051438 EP2022051438W WO2022161899A1 WO 2022161899 A1 WO2022161899 A1 WO 2022161899A1 EP 2022051438 W EP2022051438 W EP 2022051438W WO 2022161899 A1 WO2022161899 A1 WO 2022161899A1
Authority
WO
WIPO (PCT)
Prior art keywords
opening
valve
valve element
bypass
connection
Prior art date
Application number
PCT/EP2022/051438
Other languages
German (de)
English (en)
Inventor
Michael Weiler
Andras VIGH
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE102022200593.7A external-priority patent/DE102022200593A1/de
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to KR1020237028600A priority Critical patent/KR20230130140A/ko
Priority to CN202280012138.6A priority patent/CN116761952A/zh
Publication of WO2022161899A1 publication Critical patent/WO2022161899A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/10—Means for additional adjustment of the rate of flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/12—Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve

Definitions

  • the invention relates to a valve for controlling fluid flow.
  • Valves for controlling a fluid flow are already known.
  • the object of the invention is to provide an improved valve for controlling fluid flow.
  • a valve is to be provided which enables better controllability of the mass flow.
  • the proposed valve can be used to control a mass flow, in particular a fluid flow, preferably a fluid, for example a refrigerant.
  • the valve is preferably an expansion valve, in particular for use in a refrigerant circuit, in particular in a vehicle.
  • the valve has a housing with at least a first and a second connection opening. The connection openings open into a valve space that is formed within the housing.
  • a valve element is mounted in the valve chamber so that it can rotate about an axis of rotation.
  • the valve element has a channel which is designed, for example, as an in particular cylindrical through-bore which opens into the outer surface of the valve element with a first and a second through-opening.
  • at least one blind recess is made in the outer surface at a distance from the at least one, in particular all, through-openings.
  • valve element is arranged to be rotatable about an axis of rotation in the housing via a drive element.
  • the valve element advantageously has at least one bypass opening.
  • the bypass hole is formed on the outer surface of the valve element.
  • several, in particular four, bypass openings are formed.
  • the bypass openings are each connected to the channel by means of a bypass channel.
  • the bypass channels open into the channel.
  • the cross section of the bypass opening is advantageously smaller than the cross section of the through opening.
  • the cross section of the bypass openings is advantageously smaller than the cross section of the smallest passage opening.
  • the result is a valve whose hydraulic cross-sectional area increases or decreases monotonously in a rotational angle range, in particular substantially.
  • a plurality of angle of rotation ranges are preferably formed, in each of which, in particular essentially, the hydraulic cross-sectional area monotonically increases or decreases.
  • Such a course over a rotation angle range, which is essentially linear in particular, is required in order to control the expansion in modern heat pump systems and the associated refrigerant circuits in motor vehicles.
  • connection openings each have a valve seat which in particular seals the connection openings from an intermediate space.
  • the Valve seat in particular a sealing ring.
  • the sealing ring is made in particular from a plastic, in particular a sealing material, in particular a rubber.
  • the intermediate space is formed between the valve element and the housing, in particular the inner wall of the housing. An undesired flow around is advantageously prevented.
  • the valve seat advantageously has the same shape as the peripheral edge of the connection opening on which it is arranged.
  • the valve seat is also important in order to enable the valve to be completely blocked. This is the case in particular when there is no overlap between the connection opening and through-opening, bypass opening or blind recess.
  • the bag recesses have no direct connection with one of the through-openings.
  • the sack recess and the through-opening are formed at a distance from one another.
  • The, in particular all, sack recesses and the, in particular all, through-openings are each formed in particular in the outer surface of the valve element.
  • the bag recesses in particular all of them, have no connection, in particular a direct connection, to the channel.
  • the sack recess forms a pocket.
  • the blind recess can also be designed as a blind hole. Designed as a blind hole, the blind recess has a cylindrical part.
  • the sack recess extends on the outer surface of the valve member.
  • the blind recess advantageously has a first overlap with one of the connection openings and a second overlap with the intermediate space in at least one rotational angle range, in particular in one rotational angle, and creates a connection between the first connection opening and the intermediate space.
  • This connection allows fluid flow and regulation.
  • the valve seat is formed between the first and second covers. In particular, the monotonously falling or rising cross section can be generated over a rotation angle range in this way.
  • the floor is preferably divided into at least a first and a second floor section.
  • the first floor section and the second floor section have different depths and shapes.
  • the first partial base section is essentially concave and the second partial base section is essentially convex in relation to the center of the valve element.
  • the first sub-section of the floor faces the passage opening that is closer.
  • the depth of the bag recess is preferably limited in such a way that there is no connection to the channel.
  • bypass openings in particular more than 8, preferably more than 20, are formed.
  • the bypass openings are arranged in groups. At least two bypass openings are preferably formed above or below the blind hole. In particular, the distance between the individual bypass openings varies.
  • the shape of the bypass openings preferably varies.
  • bypass channels have a cylindrical basic shape.
  • the bypass channels are advantageously made by means of bores.
  • the bypass opening and the associated bypass channel are designed in particular as a bore.
  • at least two bypass channels are formed, which have different cross sections. It is advantageous that the cylindrical channels are easier to produce.
  • bypass channels have a cross-sectional area corresponding to the bypass opening into which they open.
  • the cross-sectional area is preferably only scaled smaller towards the channel.
  • valve element has a driver. Furthermore, the blind recesses are formed between two bypass openings, with one of the bypass openings on the side of the valve element facing the driver and on the side of the driver is arranged away directed side of the valve element, and that in particular the two bypass openings have the same distance from the bag recess.
  • a particularly advantageous development is that the opening cross section of the valve seat is smaller than the cross section of the connection opening, and that the valve seat in particular therefore limits the hydraulic opening cross section.
  • An advantageous further development is that a connection opening, a through-opening, at least one blind recess and at least one bypass opening are arranged in relation to the axis of rotation in such a way
  • the bag recess has a first overlap with the first connection opening and a second overlap with the intermediate space and establishes a connection between the first connection opening and the intermediate space
  • connection opening, a through-opening, at least one blind recess and at least one bypass opening are arranged in relation to the axis of rotation in such a way
  • the bag recess has a first overlap with the first connection opening and a second overlap with the intermediate space and establishes a connection between the first connection opening and the intermediate space, • wherein for the rotational position range of the valve member, as the rotational angle of the valve member increases, the first lap increases while the second lap decreases, and
  • connection opening, a through-opening, at least one blind recess and at least one bypass opening are arranged in relation to the axis of rotation in such a way
  • the bag recess has a first overlap with the first connection opening and a second overlap with the intermediate space and establishes a connection between the first connection opening and the intermediate space
  • FIG. 1 shows a schematic sectional view of a valve with a spherical valve element
  • Figure 2 shows a schematic partial section in the circumferential direction of
  • FIG. 3 is a perspective view of the valve element according to the invention.
  • FIG. 4 shows a side view of the valve element according to the invention
  • FIG. 5 shows a sectional view of the valve element according to the invention
  • Figure 6 is a side view of the valve element
  • Figure 7 shows the sectional view A-A of the valve element according to the invention
  • FIG. 8 shows detail F enlarged
  • FIG. 9 shows a plan view of the valve element according to the invention.
  • Figure 10 shows the sectional view H-H of the valve element according to the invention
  • Figure 16 - 16a in a schematic representation a diagram for a characteristic curve of the hydraulic opening cross erseh nittes of the valve depending on the angle of rotation of the valve element and
  • FIG. 17 shows an alternative embodiment of the bypass openings.
  • Figures 1 to 2 show schematic sectional views of a valve 1. The shapes and relationships shown here are only examples. In particular, FIGS. 1 to 2 are intended to clarify the position of the individual elements in relation to one another. The detailed configuration according to the invention, in particular of the valve element 4 according to the invention, is shown from FIG.
  • FIG. 1 shows a valve 1 in a schematic sectional view, which has a housing 2 with a valve chamber 3 .
  • An intermediate space 21 is formed between the valve element 4 and the housing 2 .
  • the intermediate space 21 forms a volume through which a flow can flow between the valve element 4 and the housing 2.
  • the valve element 4 can be flowed at least partially through the intermediate space 21.
  • the valve element 4 is connected to a drive element 6 , in particular a shaft or axle, which is coupled to a drive 7 .
  • the drive element 6 is sealed off from the housing 2 so that the passage of the drive element 6 is sealed off from the intermediate space 21 .
  • the valve element 4 can be rotated about the axis of rotation 5 with the aid of the drive element 6 with the aid of the drive 7 , which is designed, for example, as an electric actuator or as an electric control element, in particular as a stepping motor.
  • the valve element 4 has a spherical outer surface 8 .
  • the valve space 3 has an inner wall 9 .
  • the inner wall 9 can also be rectangular or have any other shape.
  • the inner wall 9 can also have a shape adapted to the valve element 4 .
  • the interior space can preferably also be rectangular, in particular square.
  • the housing 2 delimits the valve chamber 3 with the inner wall.
  • a frame which surrounds the valve element 4 is formed in the valve chamber.
  • the housing 2 has a first connection 61a, which runs from the outside of the housing 2 to the valve chamber 3 and opens into the valve chamber 3 with a first connection opening 10a.
  • a first valve seat 71a is formed around the first connection opening 10a, against which the outer surface 8 of the valve element bears in a sealing manner.
  • the first valve seat 71a can in particular be designed as a substantially ring-shaped sealing element which forms a sealing interface between the housing 2 and the valve element 4 .
  • the first connection opening 10a can be designed, for example, in the form of a bore with a circular cross section.
  • the housing 2 has a second connection 61b, which runs from the outside of the housing 2 to the valve chamber 3 and opens into the valve chamber 3 with a second connection opening 10b.
  • the second connection opening 10b can be formed, for example, as a bore with a circular cross section.
  • a second valve seat 71b can be formed around the second connection opening 10b, against which the outer surface 8 of the valve element 4 bears in a sealing manner.
  • the second valve seat 71b can in particular be designed as a substantially ring-shaped sealing element which forms a sealing interface between the housing 2 and the valve element 4 .
  • first port 10a and the second port 10b are arranged on one axis.
  • the axis is perpendicular to the axis of rotation 5.
  • first and the second connection opening 10a, 10b can also be arranged at a fixed angle to one another. They can also be formed at an angle to the axis of rotation 5 .
  • valve seats 71a and 71b The shape of the valve seats 71a and 71b is adapted to the connection openings 10a, 10b and the through openings 13a, 13b described below, the bypass openings 35, 35a, 35b, 36, 36a, 36b and the bag recesses 15, 15a, 15b.
  • the valve seats 71a, 71b each have a first partial area which is in particular ring-shaped. In the case of an annular configuration, the first partial area is also referred to as the inner ring.
  • the first portion 72 is to the housing 2 and the valve element.
  • the second portion 73 is optional and protrudes radially.
  • the second partial area 73 is also referred to as the outer ring in the case of an annular configuration.
  • the second partial area 73 is preferably not in contact with the valve element 4 and the housing 2 .
  • a sealing ring is formed, which is arranged in such a way that no fluid flow can flow between the first partial area 72 and the housing.
  • the sealing ring is formed radially on the outside.
  • the valve element 4 has a channel 12 .
  • the channel 12 extends from a first through-opening 13a to a second through-opening 13b and in particular vice versa.
  • the channel 12 is preferably formed perpendicularly to the axis of rotation.
  • the first and second through openings 13a, 13b are arranged on the outer surface 8 of the valve element 4.
  • FIG. In the illustrated embodiment, channel 12 is in the form of a straight bore.
  • the channel 12 is designed, for example, as a cylindrical, continuous blind recess.
  • the channel 12 can also have other shapes.
  • the first and the second passage opening 13a, 13b cannot be arranged on a plane which runs perpendicularly to the axis of rotation 5 and/or on an axis through the center of the valve element 4.
  • the sizes and shapes of the through openings 13a, 13b can be designed differently. An elliptical, rectangular or free shape is also conceivable.
  • the shape, in particular the cross section, of the channel 12 is preferably adapted to the shape of the passage openings. This means that with round through-openings 13, 13a, 13b, a channel 12 with a round cross-section advantageously results.
  • FIG. 2 shows schematic partial sections of the inner wall 9 of the valve chamber 3.
  • the first connection opening 10a is surrounded by the annular valve seat 71a, in particular its first partial area 72.
  • the second connection opening 10b can also be surrounded by a second annular valve seat 71b, in particular its first partial area 72.
  • the inner wall 9 of the Analogous to the outer surface 8 of the valve element 4 , the valve chamber 3 has essentially a spherical shape.
  • FIG. 3 shows a perspective view of a valve element 4 according to the invention.
  • the valve element 4 can be arranged in the housing 2 so as to be rotatable about the axis of rotation 5 .
  • the axis of rotation 5 is shown as an example.
  • the basic shape of the valve element 4 is in particular rotationally symmetrical.
  • the valve element 4 has an essentially spherical basic shape. According to a development of the invention, the valve element 4 can also have an essentially cylindrical basic shape.
  • the valve element 4 has a driver 34 .
  • the driver 34 is formed instead of a ball segment on the side of the valve element 4 facing the drive 7 .
  • the essentially spherical valve element 4 is in particular cut around a spherical segment on the side facing the drive.
  • the area of this ball segment is preferably designed as a driver 34, or the driver 34 is formed in this area.
  • the valve element 4 thus has an essentially spherical shape with a recess in the area of the driver 34 .
  • the driver 34 has in particular a driver element.
  • the entrainment element is designed here, for example, as a groove, in particular a fitting groove.
  • the drive element 7 can engage in the driver element with a correspondingly designed interface. In this case, the interface is designed to correspond to the driver element.
  • the driver 34 enables the rotational movement of the drive 7 to be passed on to the valve element 4 .
  • the valve element 4 has an essentially spherical outer surface 8 .
  • An exception to the spherical outer surface 8 is, for example, the area of the driver 34. Furthermore, in the case of the valve element 4, a ball segment is cut off on the side opposite the driver 34. This area is also an exception to the essentially spherical outer surface 8.
  • an outer surface 8 which is essentially spherical.
  • an outer surface 8 results, which has a spherical outer surface 8 with an imaginary addition of the two segments of a spherical circle.
  • the valve element 4 has in the outer surface 8 two spaced through openings 13a and 13b. Only the passage opening 13a is shown in FIG. 3, since the further passage opening 13b, covered by the valve element 4, is formed on the back.
  • the region of the second through-opening 13b and thus the second through-opening 13b is of mirror-symmetrical design.
  • the cross section of the through-openings 13a, 13b is, for example, circular. Depending on the selected embodiment, the through openings 13a and 13b can also have any other desired cross section.
  • a channel 12 connects the through openings 13a and 13b to one another.
  • the channel 12 is, in particular, configured in the shape of a cylinder. Further configurations have already been explained in the description of FIGS.
  • the channel 12 preferably has the same cross section as at least one of the through-holes 13a, 13b. a
  • the outer surface 8 has at least one bypass opening 35 .
  • two bypass openings 35 and 36 are formed.
  • valve element 4 has a first bypass opening 35 and a second bypass opening 36 in the outer surface 8 .
  • the first bypass opening 35 is arranged on the, in particular upper, hemisphere facing the driver 34 .
  • the second bypass opening 36 is arranged on the other, in particular the lower, hemisphere.
  • the first bypass opening 35 with respect to the axis of rotation 5 is arranged above the bag recess 15 .
  • the second bypass opening 36 is arranged below the bag recess 15 with respect to the axis of rotation 5
  • bypass openings 35a and 36a are each connected to the channel 12 by means of a bypass channel 37,38.
  • the bypass openings 35a, 36a are assigned to the through-opening 13a. The assignment is made on the basis that the bypass openings 35a, 36a are closer to the through-opening 13a than to the through-opening 13b.
  • At least one further bypass opening 35b in particular two bypass openings 35b and 36b, are formed. These are assigned to the second passage opening 13b and are therefore not visible in FIG.
  • the valve element 4 is, in particular, of mirror-symmetrical design. Thus, all information relating to through-openings 13a and the bypass openings 35a, 36a associated with them and the blind recess 15a also relate to the bypass openings 35b, 36b and blind recess 15b associated with the second through-opening 13b.
  • At least one bypass opening has a triangular basic shape with rounded corners.
  • a blind hole 15a is formed in the outer surface 8.
  • the blind recess 15a is also associated with the through-opening 13a.
  • the sac hole 15 extends on the outer surface 8 of the valve element 4.
  • the sac hole 15 has a varying depth.
  • the sack recess 15 has no connection to the channel 12 and/or one of the bypass openings and/or a through-opening 13.
  • the sack recess 15 only extends on the surface, ie the outer surface.
  • the bag recess has the form of a groove or a surface notch.
  • the sac recess extends on an imaginary circular line on the outer surface 8 of the essentially spherical valve element 4.
  • the sac recess 15 extends a few millimeters deep into the valve element 4.
  • the sac recess 15 can in particular be designed as a channel-shaped element and have an essentially rectangular cross section exhibit.
  • the bag recess 15 has essentially rounded edges.
  • the first bag recess 15 has the shape of a rectangular surface, which is arranged essentially perpendicularly to the axis of rotation 5 .
  • the sack recess extends in particular along a line of intersection between an imaginary plane that runs perpendicularly to the axis of rotation 5 and the outer surface 8. This line of intersection also forms in particular the central axis 26 of the sack recess 15.
  • the blind hole 15a extends in the circumferential direction.
  • the blind recess 15a runs in a plane which is perpendicular to the axis of rotation 5 of the valve element 4 .
  • the sack recess is aligned centrally with respect to the axis of rotation 5 in relation to the through-opening 13a.
  • the central axis 26 of the bag recess 15a runs perpendicular to the axis of rotation 5 and is formed in relation to the axis of rotation 5 at the level of the center of the first through-opening 13a.
  • the blind recess 15a is arranged at a distance from the first through-opening 13a.
  • the bag recess does not protrude into the through opening 13a.
  • a separator 27 is formed therebetween.
  • the bag recess 15a can also have other shapes and/or be arranged at a different height relative to the first passage opening 13a.
  • the edge facing the through-opening is formed obliquely.
  • the edge has a profile that is based on the tangent of the through-opening 13 in this area.
  • FIG. 4 shows the side view of the valve element 4 according to the invention.
  • the channel 12 is straight. The viewer of the figure can thus see through the valve element 4 by means of the channel 12 .
  • the valve element 4 has a diameter 100 of 24.05 mm, for example. According to the application, this diameter could also be 24.025 to 24.075 mm, in particular 20 to 30 mm.
  • the diameter 102 of the through opening 13a and/or 13b is 10.25 mm, but could also be 10.2 to 10.3 mm, in particular 10 to 10.5 mm, within the meaning of the application.
  • the distance 104 between the center point of the through opening 13a and the lower edge of the valve element 4 is between 7.9 and 8.1 mm, in particular 8 mm.
  • the distance 106 between the upper edge of the valve element 4 and the center is between 10.45 and 10.55 mm, in particular 10.5 mm.
  • the width 108 of the driver 34 is between 17.9 and 18.1 mm, in particular 18 mm.
  • the driver element has a width 110 of essentially 2 mm.
  • the bag recess 15a has an extension 102, parallel to the axis of rotation, between 2.1 and 2.35 mm, in particular 2.25 mm.
  • the view in FIG. 4 can just as well show the through opening 13b instead of 13a and the blind recess 15b instead of 15a and so on.
  • FIG. 5 shows the sectional view B-B from FIG. Bypass ducts 37a, 38a to bypass ports 35a and 36a and how these communicate with duct 12 are shown. If the section plane B-B in Figure 4 is viewed in the opposite direction, the bypass channels 37b and 38b result instead of the bypass channels 37a and 38a. The through-opening 13b would then also be visible on the right and the through-opening 13a on the left.
  • the side view is shown in FIG. 6, with the valve element 4 being turned to the left in relation to FIG.
  • the bag recess 15a has an extension 112, parallel to the axis of rotation, between 2.1 and 2.35 mm, in particular 2.25 mm. A further rotation of 180 degrees would result in the same view. However, the bypass openings 35b and 36b and the blind recess 15b would be visible here.
  • the bypass openings 35 , 36 are formed at a distance from the bag recess 15 and at a distance from the associated through-opening 13 .
  • the distance 130 between the central axis 26 of the bag recess 15 and the bypass opening 35 (here 35a) is between 3.2 and 3.3 mm, in particular 3.25 mm.
  • the distance between the central axis 26 of the bag recess 15 and the bypass opening 36 is in particular the same.
  • the central axis 26 forms an axis of symmetry for the design of the bypass openings 35 and 36.
  • FIG. 7 shows the sectional view A-A from FIG. It can be seen here that the bypass ducts 37a and 37b open into the duct 12 .
  • FIG. 8 shows detail F from FIG. This is a sectional view through one of the bag recesses 15a.
  • the bag recess 15b is mirrored accordingly.
  • the blind recess 15 can have different depths along the direction of rotation of the valve element 4 with which they are introduced into the outer surface 8 of the valve element 4 .
  • the depth of the bag recess 15 can increase in the direction of the through-opening 13 .
  • the cross-sectional areas and the depths of the bag recess 15 are designed in such a way that a desired hydraulic opening cross-section is achieved.
  • the hydraulic flow cross section is referred to as the hydraulic opening cross section.
  • the blind recess 15 establishes a connection between the connection opening 10 and the intermediate space 21 .
  • the blind recess 15 is designed in particular as a groove in the surface 8 of the valve element 4 .
  • the bag recess 15a has different depths.
  • the bag recess 15 has a bottom 16a.
  • the floor 16a is divided at least into a first floor section 17a and a second floor section 18a.
  • the first bottom section 17a and the second bottom section 18a are at distances from the surface 8 and are shaped.
  • the first bottom section 17a is essentially concave and the second bottom section 18a is essentially convex in relation to the center 45 (FIG. 7) of the valve element 4 .
  • the first partial bottom section 17a with its concave shape results from an imaginary circular area with a radius 150 between 2 and 6 mm, preferably 3.95 mm.
  • the center point of the imaginary circular area lies outside of the valve element 4 .
  • the second bottom section 18a with its convex shape results from an imaginary circular area with a radius 152 of between 9.95 and 10.05 mm, preferably 10 mm.
  • the center point of the imaginary circle is offset from the center point of the valve element 45 .
  • the distance from the center parallel to port 12 is 2.235 mm and perpendicular to port 12 is 1.25 mm from the center 45 of the valve member.
  • the center 45 and the distances therefrom are all in one plane.
  • the distance between the bag recess 15a and the passage opening 13a is between 1.1 mm and 1.2 mm, in particular 1.1245 mm. There is no direct connection between the bag recess 15 and the through-opening 13.
  • the pocket recess extends in the circumferential direction from the point of intersection of the longitudinal axis of the channel 12 with the outer surface over an angle 156 of 71 to 72.5 degrees, in particular 71.76 degrees.
  • the top view of the valve element 4 is shown in FIG.
  • the angle 160 is between 45 and 49 degrees, in particular 47 degrees.
  • the sectional view H-H from FIG. 9 is shown in FIG. 10a.
  • the angle 170 describes the inclination of the bypass channels 37a, 37b, 38a, 38b relative to the center axis or a plane that is formed from the two center axes 26 of the bag recesses 15a and 15b.
  • valve element 4 is considered here starting from the connection opening 10a. When viewed from the port opening, the view is the same due to its symmetry. Furthermore, the valve seat 71a is also shown in order to illustrate which hydraulic opening cross sections result. It should be noted that in particular the partial area 72 of the valve seat 71a can bear against the valve element 4 and the housing 2 . The partial area 73 does not touch the housing 2 . The valve seat 71a is located at the port 10a. Due to the mirrored design of the valve element 4, all of the designs relating to 15, 35, 36 relate to the elements 15a, 15b and 35a, 35b and 36a, 36b.
  • the valve seat 71 is composed of two rings.
  • the inner ring 72 serves in particular to seal between the connection opening and the intermediate space. It is also in contact with the valve element 4 and the housing 2 .
  • the outer ring 73 is not in contact with the valve element 4 . It is preferably in contact with the housing 2 .
  • FIG. 11 shows the first connection opening 10a with the first valve seat 71a.
  • the gap 21 is adjacent to the outer surface 8 outside the valve seat 71a of the first port 10a.
  • the housing 2 is not shown to simplify the illustration.
  • the passage opening 13a of the valve element 4 overlaps with the connection opening 10a. So that a maximum throughflow is achieved, the overlap between through-opening 13a and connection opening 10a is 100%.
  • the fluid flows, in particular for the most part, via the connection opening 10a, the passage opening 13a, the channel 12, the passage opening 13b and the connection opening 10b through the valve.
  • the valve seat 71a and the valve seat 71b prevent a flow of fluid into the intermediate space 21.
  • bypass openings 35a, 36a overlap with the intermediate space 21.
  • bag recess 15 overlaps with the intermediate space 21 .
  • the valve is fully open.
  • the resulting mass flow is shown at position 50 in FIG. If the valve element 4 is moved further relative to the position in FIG. 11, in particular rotated further, the hydraulic opening cross section between the first connection opening 10a and the through-opening 13a decreases. Moving on is equivalent to increasing the angle of rotation. Furthermore, it results that the blind recess 15a has a first overlap with the first connection opening 10a and a second overlap with the intermediate space 21 and creates a connection between the first connection opening 10a and the intermediate space 21 .
  • connection opening 10a there is a connection via the first connection opening 10a, the blind recess 15a, the intermediate space 21, the blind recess 15b (which are associated with the second through-opening 13b).
  • connection opening 10a there is a connection via the connection opening 10a, the through-opening 13a, the channel 12, the through-opening 13b and the connection opening 10b.
  • FIG. 12 shows the valve element 4 of FIG. 11 with a rotational position of the valve element 4 in which the valve element 4 has been rotated by an angular range, in particular 25 to 35 degrees, preferably 30 degrees, in the direction of rotation compared to the position in FIG. There is an increase in the angle of rotation of the valve element 4 in Figure 12 compared to the position in Figure 11.
  • the blind recess 15a has a first overlap with the first connection opening 10a and a second overlap with the intermediate space 21 and creates a connection between the first connection opening 10a and the intermediate space 21 .
  • the first overlap has increased and the second overlap has decreased.
  • the second through hole 13a communicates with the second connection hole 10a. Both have an overlap. However, compared to the overlap according to FIG. 11, the overlap has decreased as the valve element 4 rotates. Furthermore, the two bypass openings 35, 36 overlap with the valve seat 71a. Thus, in this situation, a connection via the first connection opening 10a, the first through opening 13a, the channel 12, the second through opening 13b and the second connection opening 10b is opened. Furthermore, there is a connection via the connection opening 10a, the blind recess 15a, the intermediate space 21, the blind recess 15b, the connecting opening 10b. A mass flow can thus flow through the valve 1 . The resulting mass flow is shown at position 52 in FIG. The hydraulic cross-section is smaller than with the rotation angle of 0° according to Figure 11, or point 50.
  • valve element 4 is turned in such a way that there is already a minimal overlap of the bypass openings 35a, 36a with the connection opening 10a. With further turning, the overlap and thus the cross section would increase.
  • the overall cross section between the position according to FIG. 11 and FIG. 12 has decreased monotonously, in particular linearly.
  • FIG. 13 shows the valve element 4 of FIG. 11 with a rotational position of the valve element 4 in which the valve element 4 has been moved further in the direction of rotation compared to the position of FIG. 12 by an angular range, in particular 15 to 25 degrees, preferably 20 degrees.
  • the bag recess 15 overlaps with the first connection opening 10a. However, it does not overlap with the intermediate space 21 .
  • the area of the bag recess 15 not covered by the connection opening 10a is covered by the valve seat 71a. Thus, there is no fluid flow across the sac cavity 15.
  • the registration with the gap has decreased with increasing rotation until there was none.
  • the first through-opening 13a has a minimal overlap with the connection opening 10a. With a further spin, the overlap would continue to decrease and disappear.
  • the two bypass openings 35a, 36a overlap with the connection opening 10a.
  • a connection via the first connection opening 10a, the bypass openings 35a, 36a, the channel 12, the bypass openings 35b, 36b (which are associated with the second through-opening 13b) is possible.
  • a mass flow can thus flow through the valve 1 .
  • the resulting mass flow is shown at position 54 in FIG.
  • the overall cross-section between the position according to FIG. 12 and FIG. 13 has essentially decreased monotonically, in particular linearly.
  • FIG. 14 shows the valve element 4 of FIG. 11 with a rotational position of the valve element 4 in which the valve element 4 has been moved further by an angular range in the direction of rotation compared to the position of FIG.
  • the bag recess 15a overlaps with the first connection opening 10a. Furthermore, the bag recess 15a overlaps with the intermediate space 21 . A fluid flow results via the blind recess 15a.
  • the second passage opening 13a is no longer connected to the second connection opening 10a. There is no overlap.
  • the two bypass openings 35a, 36a overlap with the connection opening 10a.
  • the overlaps decrease compared to the overlap in FIG.
  • a connection via the first connection opening 10a, the bypass openings 35a, 36a, the channel 12, the bypass openings 35b, 36b (which are associated with the second through-opening 13b) is possible.
  • a mass flow can flow through the valve 1 .
  • the resulting mass flow is shown at position 56 in FIG.
  • a connection is possible via the first connection opening 10a, the blind recess 15, the intermediate space 21, the blind recess 15a (which is associated with the second through-opening 13b).
  • a mass flow can flow through the valve 1 .
  • the resulting mass flow is shown at position 56 in FIG.
  • valve element 4 If the valve element 4 is moved further with respect to the position in FIG. 14, a hydraulic opening cross section between the first connection opening 10a only overlaps with the bag recess 15a. Accordingly, there is a flow of fluid through the blind recess 15a.
  • the first passage opening 13a, the intermediate space 21, the bag recess 15, the bypass openings 35, 36 and the first connection opening 10a are designed in such a way that between the rotational positions of the valve element 4 according to FIGS. 11 to 15 there is a decrease in the hydraulic opening cross nothing done.
  • the decrease in the hydraulic opening cross-section occurs linearly with the increase in the angle of rotation in the direction of rotation. This decrease is shown in FIG.
  • valve element 4 is identical in the area of the first passage opening 13a and in the area of the second passage opening 13b, with identical bag recesses 15 and bypass openings 35, 36 being arranged on both passage openings 13a, 13b.
  • the valve element 4 thus has at least one through-opening, one blind recess and at least one bypass opening twice on a circumference of the outer surface 8 .
  • the bag recesses are arranged mirror-symmetrically to the axis of rotation 5 of the valve element 4 .
  • FIG. 16 shows a diagram for a characteristic curve 64 of a hydraulic opening cross section of valve 1 as a function of an angular position of valve element 4.
  • the x axis corresponds to the angle of rotation and the y axis to the opening cross section in mm 2 .
  • the valve element can be scaled as desired, resulting in scaled cross-sectional values.
  • the characteristic curve 64 represents the sum of the hydraulic opening cross section for the first passage opening, the bag recess 15 and the bypass opening 35, 36. It therefore represents the resulting total cross section.
  • valve element 4 has an angle of 0 degrees.
  • valve element 4 has an angle of 30 degrees.
  • valve element 4 has an angle of 50 degrees.
  • valve element 4 has an angle of 70 degrees.
  • 110 degrees the valve is fully closed.
  • the details are exemplary and can vary within the scope of the invention.
  • the passage opening 13a and the connection opening 10a have a maximum overlap.
  • the opening cross-section is maximum.
  • the overlapping of the through opening 13a and the connection opening 10a decreases, in particular linearly.
  • the bypass ports are inactive. There is a further connection via the bag recess 12. Between the points 50 and 52 there is an essentially linear course.
  • point 54 is part of a monotonous decrease from point 52 to 56, or part of a monotonous increase from point 56 to point 52.
  • a corresponding configuration is found in FIG. 16a.
  • FIG. 1 An alternative embodiment is shown in FIG.
  • a plurality of bypass openings are formed instead of a single bypass opening 35a and a single bypass opening 36a.
  • Several bypass openings are formed above and/or below the bag recess.
  • the bypass openings are, in particular, designed to be circular. Elliptical shapes are also conceivable within the scope of the invention.
  • Each bypass opening and the associated bypass channel preferably form a through hole.
  • the bypass channel has a cylindrical design.
  • the bypass openings and bypass channels are preferably produced by means of a bore.
  • the number, shape and position of the bypass openings are designed in such a way that the cross section increases or decreases monotonously in relation to the course of the angle of rotation.
  • the bypass openings are preferably formed symmetrically above and below the bag recess, with the central axis 26 forming the mirror axis.
  • the individual bypass openings generate an identical cross-sectional increase and decrease in relation to the angle of rotation as the bypass openings 35 and 36 of FIGS. 1 to 10. It is advantageous that bores can be produced more cost-effectively.
  • the bypass openings and bypass channels are composed of several individual bores. In particular, the production takes place through several bores.
  • bypass openings and bypass channels are produced by means of drilling and milling.
  • valve element 4 All of the configurations of the valve element 4 described are used to linearize the hydraulic opening behavior of the through-openings with the aid of the bag recesses.
  • the valve can be used, for example, in a refrigeration circuit, in particular in a heat pump system of a vehicle.
  • the bag recesses represent so-called expansion recesses.
  • the first connection opening is aligned with the second connection opening and can thus be connected to one another with almost no pressure losses by means of a straight through-bore formed in the valve element.
  • the first and/or the second port can be connected to the line with the higher pressure.
  • the proposed valve makes it possible for the at least one blind recess and the through bore or the through openings to have no direct connection in the valve element, although a hydraulic connection can be established between the at least one blind recess and the through bore by the formation of the intermediate space.
  • a desired opening behavior of the valve in particular a desired increase in the hydraulic opening cross-section with the decrease or increase in the angle of rotation of the valve element, can thus be established by a corresponding superposition.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)

Abstract

Soupape (1), en particulier soupape de détente, pour réguler un flux de fluide, en particulier dans un circuit frigorifique d'un véhicule, comprenant un corps (2) pourvu d'au moins une première et une deuxième ouverture de raccordement (10, 10a, 10b) qui débouchent dans une chambre de soupape (3) du corps (2), dans laquelle un élément de soupape (4) est monté rotatif autour d'un axe de rotation (5), lequel élément de soupape (4) présente au niveau d'une surface extérieure (8) deux ouvertures de passage (13a, 13b) espacées l'une de l'autre qui sont reliées l'une à l'autre par un canal (12), au moins un évidement borgne (15, 15a, 15b) étant ménagé dans la surface extérieure (8) de l'élément de soupape (4). Selon l'invention, la surface extérieure (8) de l'élément de soupape (4) présente au moins une ouverture de dérivation (35, 35a, 35b, 36, 36a, 36b) qui est reliée au canal (12) par un canal de dérivation (37, 37a, 37b, 38, 38a, 38b), ladite ouverture de dérivation (35, 35a, 35b, 36, 36a, 36b) présentant une section transversale inférieure à celle de l'ouverture de passage (13a, 13b).
PCT/EP2022/051438 2021-01-28 2022-01-24 Soupape WO2022161899A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020237028600A KR20230130140A (ko) 2021-01-28 2022-01-24 밸브
CN202280012138.6A CN116761952A (zh) 2021-01-28 2022-01-24 阀

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102021200786.4 2021-01-28
DE102021200786 2021-01-28
DE102022200593.7 2022-01-20
DE102022200593.7A DE102022200593A1 (de) 2021-01-28 2022-01-20 Ventil

Publications (1)

Publication Number Publication Date
WO2022161899A1 true WO2022161899A1 (fr) 2022-08-04

Family

ID=80123175

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2022/051438 WO2022161899A1 (fr) 2021-01-28 2022-01-24 Soupape

Country Status (2)

Country Link
KR (1) KR20230130140A (fr)
WO (1) WO2022161899A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006002375U1 (de) * 2006-02-15 2006-04-20 Festo Ag & Co. Kugelhahn
US20160125962A1 (en) * 2013-05-31 2016-05-05 Commissariat A L'energie Atomique Et Aux Energies Alternatives System for Regulating a Liquid in a Circuit
US20160369908A1 (en) * 2015-06-18 2016-12-22 Sensus Usa Inc. Ball Valve Assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006002375U1 (de) * 2006-02-15 2006-04-20 Festo Ag & Co. Kugelhahn
US20160125962A1 (en) * 2013-05-31 2016-05-05 Commissariat A L'energie Atomique Et Aux Energies Alternatives System for Regulating a Liquid in a Circuit
US20160369908A1 (en) * 2015-06-18 2016-12-22 Sensus Usa Inc. Ball Valve Assembly

Also Published As

Publication number Publication date
KR20230130140A (ko) 2023-09-11

Similar Documents

Publication Publication Date Title
DE69911079T2 (de) Fahrzeugrolldämpfung
DE102020202520A1 (de) Verteilventil und Kühlsystem
DE112014002468T5 (de) Leichtgängiges Dichtungsverfahren für ein Temperaturregelventil
DE102006024841B4 (de) Elktromagnetische Stellvorrichtung
DE102017215830A1 (de) Rotationsdämpfer und Sitzanordnung
DE19857068A1 (de) Stossdämpfer mit einem in zwei Richtungen wirkenden Ventil und einem strömungseinschränkenden Kanal, der parallel zu dem Ventil angeordnet ist
DE19805478C2 (de) 3/3-Wegeventil
DE3905636A1 (de) Schieberventil
WO2023117706A1 (fr) Procédé de fabrication d'un élément d'étanchéité, élément d'étanchéité et utilisation d'un élément d'étanchéité fabriqué selon un tel procédé
DE102022200593A1 (de) Ventil
DE102015200187A1 (de) Ventilvorrichtung in einem Kraftfahrzeug und Verfahren zur Herstellung
DE102019126035B4 (de) Ventilvorrichtung
DE19542200C2 (de) Servoventil
WO2022161899A1 (fr) Soupape
EP4008936A1 (fr) Soupape de commande d'un écoulement de fluide
DE3211068A1 (de) Servolenkung
WO2020182921A9 (fr) Dispositifs de clapet destinés à une pompe à membrane
DE102021213409A1 (de) Ventil zur Steuerung eines Fluidstroms
DE202018106532U1 (de) Ventil zur Steuerung eines Flusses eines Fluids
DE102017117988A1 (de) Pneumatische oder hydraulische Vorrichtung
DE102020106437B4 (de) Fluidsteuereinrichtung, insbesondere als Teil einer hydraulischen Lenkeinheit
DE102017222699B4 (de) Unterseeventil mit nicht-kreisförmigen Metallgleitdichtungen
DE3243403C2 (fr)
DE3932269A1 (de) Druckbegrenzungsventil
DE102005015628B4 (de) Ventil

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22701598

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 202280012138.6

Country of ref document: CN

ENP Entry into the national phase

Ref document number: 20237028600

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 1020237028600

Country of ref document: KR

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22701598

Country of ref document: EP

Kind code of ref document: A1