WO2022042974A1 - Control valve and line system - Google Patents

Control valve and line system Download PDF

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Publication number
WO2022042974A1
WO2022042974A1 PCT/EP2021/070887 EP2021070887W WO2022042974A1 WO 2022042974 A1 WO2022042974 A1 WO 2022042974A1 EP 2021070887 W EP2021070887 W EP 2021070887W WO 2022042974 A1 WO2022042974 A1 WO 2022042974A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
housing
valve member
drive
control valve
Prior art date
Application number
PCT/EP2021/070887
Other languages
German (de)
French (fr)
Inventor
Domenico Solazzo
Thomas Gustav SCHÜRFELD
Original Assignee
Woco Industrietechnik 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
Application filed by Woco Industrietechnik Gmbh filed Critical Woco Industrietechnik Gmbh
Publication of WO2022042974A1 publication Critical patent/WO2022042974A1/en

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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
    • F16K5/04—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 cylindrical surfaces; Packings therefor
    • F16K5/0442—Spindles and actuating 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
    • F16K27/065—Construction of housing; Use of materials therefor of taps or cocks with cylindrical 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
    • F16K31/043—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F16K31/535—Mechanical actuating means with toothed gearing for rotating valves

Definitions

  • the present invention relates to a control valve, in particular a fluid valve, for adjusting a fluid flow, in particular in a motor vehicle. Furthermore, the present invention provides a line system for a motor vehicle, in particular for cooling an engine or for providing an anode and/or cathode current in a fuel cell.
  • valve members that cooperate with valve seats.
  • Flow cross sections of lines through which the fluid flow flows are assigned to the valve seats.
  • the valve members can be positioned within the line.
  • Electromagnetic drives with electric motors are increasingly being used to position the valve members.
  • a rotor of the electromagnet is driven, which is connected to the valve member via coupling elements such as an actuating rod.
  • the actuating rod is guided through a housing opening in the line in order to connect the electromagnetic drive, which is arranged outside of the line, for actuating the valve member to the latter in terms of force transmission.
  • a water valve with a water-carrying line section in which a valve member is arranged, which can be adjusted to close and release the line section by means of a translationally movable actuating rod.
  • An electric motor is provided to actuate the actuating rod, wherein the stator of the electric motor is arranged in a separate housing part and the rotor is connected in terms of force transmission to the actuating rod in such a way that a rotation of the rotor is converted into a translational movement of the actuating rod.
  • the rotor and stator are separated from each other by a non-magnetic sleeve.
  • an additional housing plug is provided for connecting the two housing parts.
  • EP 2909515 Bi there is the sealing problem described above and the associated energy losses. Furthermore, the construction of the water valve according to EP 2909515 Bi is complex and requires a large amount of space transverse to the water flow direction.
  • a control valve for adjusting a fluid flow in particular in a motor vehicle
  • the control valve can also be designed or referred to as a fluid valve.
  • Generic control valves are used, for example, in motor vehicles, in particular in the motor vehicle engine area and/or in the motor vehicle battery area in motor vehicles operated by electric motors, for their thermal management, i.e. for distributing, mixing, shutting off and the like of fluid flows, such as coolant flows.
  • the control valve includes a fluid-carrying fluid housing.
  • the fluid housing can have a fluid channel.
  • the fluid housing can have a fluid inlet connector and a fluid outlet connector for coupling to a line system of a motor vehicle.
  • the fluid can enter the fluid housing via the fluid inlet connection and leave it again via the fluid outlet connection.
  • a valve chamber, in which a valve member can be moved to close and at least partially open the fluid housing, in particular the fluid channel, can be located between the fluid inlet connection and the fluid outlet connection, viewed in the flow direction of the fluid.
  • the control valve also includes an adjustable valve member which is rotatable about a rotational control axis in order to close and at least partially open the fluid housing, in particular the fluid channel.
  • the valve member can therefore also be referred to as a rotary piston or be designed.
  • the space in which the valve member can rotate about its rotational adjustment axis can be referred to as the valve space.
  • At least one seal can be arranged between the valve member and the valve housing, which seal ensures tightness when the valve member or the control valve is in the closed state.
  • the rotational adjustment axis is arranged essentially perpendicularly to the direction of flow of the fluid through the fluid housing and/or to the longitudinal extension of the fluid housing, in particular the fluid inlet and fluid outlet connections.
  • the valve member can be mounted in such a way that there is essentially only one degree of freedom of rotational movement of the valve member.
  • the control valve also comprises an electromagnetic drive with a rotor coupled to the valve member in a positive and/or non-positive manner and with a stator associated with the rotor.
  • the electromagnetic drive can be an electric motor, for example.
  • the stator is housed in a drive housing that is hermetically separated from the fluid housing.
  • the rotor could also be accommodated in the separate drive housing.
  • the other component of the rotor and stator, in particular the rotor can be accommodated in the fluid housing.
  • the drive housing can be referred to as that housing part of the control valve that essentially accommodates the components of the electromagnetic drive.
  • the drive housing can also be manufactured separately from the fluid housing and be provided as a preassembled unit including the electromagnetic components of the drive.
  • a non-contact, contact-free power transmission from the drive to the valve member is implemented.
  • an actuating or valve rod extending through the housing parts, which frictionally connects the drive to the valve member, and in particular transmits a rotational drive force of the drive into a rotational movement of the actuator.
  • seals There is no need for seals.
  • a Another advantage is that the control valve is significantly more efficient compared to the prior art. The frictional forces occurring between the actuating or valve rod and its seal relative to the housing parts no longer have to be overcome when actuating the valve member in the case of contact-free and non-contact power transmission.
  • a control valve in particular a fluid valve, is provided for adjusting a fluid flow, in particular in a motor vehicle.
  • the control valve includes a fluid-carrying fluid housing.
  • the fluid housing can have a fluid channel.
  • the fluid housing can have a fluid inlet connector and a fluid outlet connector for coupling to a line system of a motor vehicle.
  • the fluid can enter the fluid housing via the fluid inlet connection and leave it again via the fluid outlet connection.
  • a valve chamber, in which a valve member can be moved to close and at least partially open the fluid housing, in particular the fluid channel, can be located between the fluid inlet connection and the fluid outlet connection, viewed in the flow direction of the fluid.
  • the control valve also includes a valve member that can be adjusted, in particular rotated about a rotational adjustment axis, to close and at least partially open the fluid housing, in particular the fluid channel.
  • the valve member can be designed as a rotary piston.
  • the space in which the valve member can rotate about its rotational control axis or can be displaced along its translation control axis can be referred to as the valve space.
  • At least one seal can be arranged between the valve member and the valve housing, which seal ensures tightness when the valve member or the control valve is in the closed state.
  • the rotational adjustment axis is arranged essentially perpendicularly to the direction of flow of the fluid through the fluid housing and/or to the longitudinal extension of the fluid housing, in particular the fluid inlet and fluid outlet connections.
  • the control valve comprises an electromagnetic drive with a positive and / or non-positively coupled to the valve member and from the drive actuated rotor.
  • the rotor is arranged in the fluid housing in such a way that, at least in the open state of the valve member, the fluid flow flows around the rotor.
  • the coupling points between the rotor and the valve member are lubricated by fluid, in particular permanently, at least in the open state of the valve member.
  • the second measure according to the invention also makes it possible to dispense with an actuating or valve rod extending through the fluid housing and the drive housing and the sealing problems associated therewith.
  • the rotor is non-rotatably coupled to the valve member. It can thus be ensured that the rotary drive force of the electromagnetic drive is transmitted without loss to the valve member in order to position it, in particular to close it or at least partially open it.
  • the valve member can be rotatable about a rotational adjustment axis for adjustment. Accordingly, the valve member can be designated or designed as a rotary piston.
  • the valve member can, for example, be arranged in a fixed or stationary manner with respect to its axial position in relation to the rotational adjustment axis. For example, there can be only one degree of freedom of rotational movement of the valve member.
  • the valve member is rotatably mounted with respect to the drive housing and the fluid housing.
  • the valve member is mounted on the drive housing and the fluid housing via a respective bearing, in particular a rotary bearing.
  • the bearings can be realized by a bearing journal on the valve member side and a bearing depression on the housing part side, which engage in one another.
  • the valve member has a bearing pin which faces the fluid housing and which interacts with a bearing depression on the fluid housing side.
  • the valve housing can have a bearing recess facing the drive housing, which is connected to a drive housing-side Bearing pin interacts.
  • the bearings can be in axial alignment with one another and/or oriented along the rotational adjustment axis.
  • the bearings are arranged in particular in the fluid housing in such a way that fluid flows permanently around them. In this way, the bearings can be continuously lubricated. No additional lubricant supply is required. Lubrication can only be realized via the fluid flow that is flowing anyway.
  • the rotor and a stator of the electromagnetic drive and possibly a bearing for mounting the valve member on the drive housing, such as a bearing pin are arranged at the same height in relation to the rotational adjustment axis.
  • the installation space in the direction of the rotational adjustment axis can be kept as small as possible.
  • the bearing can be surrounded radially with respect to the rotational adjustment axis by the rotor, which in turn can be radially surrounded with respect to the rotational adjustment axis by the stator.
  • the fluid housing and the drive housing are integrally connected to one another.
  • the integral connection can be achieved, for example, by welding, in particular laser welding or friction welding, or soldering. Due to the integral connection of the housing parts, additional sealing measures, in particular sealing elements, can be dispensed with.
  • the fluid housing and drive housing are attached to one another by means of laser welding, with the radially inner component, for example the fluid housing, being made of a laser-absorbing material or material, in particular plastic material, while the radially outer component, for example the drive housing, is made of a laser-transparent material or material , In particular made of plastic material.
  • the fluid housing and the drive housing are free of a passage connecting the fluid housing and the drive housing, in particular for a passage that transmits the driving force of the drive to the valve member Power transmission component, such as an adjusting rod. It is thus possible to completely insulate or hermetically separate the drive housing from the fluid housing. This means that there are no weak points with regard to the sealing or tightness of the housing parts.
  • the drive housing is closed with a cover, in particular with a material connection.
  • the cover can have or carry an electrical connection point, such as an electrical device plug.
  • the cover with the electrical connection point ensures simple assembly or electrical connection to an energy source and/or a simple electrical connection, for example to a control unit, in particular of the motor vehicle.
  • the cover can hermetically seal the drive housing. They can be attached to one another, for example, by means of laser welding or friction welding, with laser welding making sure that the radially inner component, for example the cover, is made of a laser-absorbing material, in particular plastic material, while the radially outer component, for example the drive housing, is made of a laser-transparent material Material, in particular plastic material, is produced.
  • a gas-permeable membrane that is liquid-repellent can be used here.
  • the gas-permeable membrane can be arranged, for example, in the drive housing or in the cover.
  • the membrane can be clamped at the edge, ie radially on the outside in relation to the axis of rotation of the rotary piston, and/or can be positioned in a lattice cage for mechanical protection.
  • the lattice cage can be part of the cover.
  • the membrane can have a round or square shape.
  • the membrane is welded in, especially from the inside, and possibly protected with a lattice cage. In principle, it must also be ensured that the membrane is fixed fluid-tight in the cover or in the lattice cage. Furthermore, the membrane should be selected so that its membrane surface is used for gas exchange and keeps moisture away.
  • the drive is coupled in a force-transmitting manner to the valve member via a planetary gear. It it was found that sealing elements between the valve member and the fluid housing may be necessary in order to ensure the desired tightness in the various valve positions of the control valve. The resulting increased effort required to actuate the control valve member can be compensated for by providing a planetary gear.
  • the planetary gear makes it possible to use inexpensive and/or low-power electromagnetic drives.
  • the planetary gear is arranged in particular in such a way that fluid flows around it, in particular permanently, at least when the valve member is in the open state.
  • the open state of the valve member in particular continuous lubrication of the planetary gear, in particular of the components of the planetary gear that mesh with one another, can be made possible.
  • the planetary gear has planet wheels which are rotatably mounted on the valve member or the drive housing and interact with an external ring gear arranged on the valve member, the fluid housing or the drive housing to move the control member.
  • the valve member or the drive housing can have bearing journals oriented in particular in the direction of rotation of the valve member, which are particularly integrally formed on the valve member or the drive housing and relative to which the planet wheels are rotatably mounted.
  • the planet gears can have a shaft which is connected in a rotationally fixed manner to the planet gears and which is rotatably accommodated or mounted in a corresponding bearing in the valve member.
  • the outer ring gear is introduced into the valve member, the fluid housing or the drive housing, in particular made in one piece with the fluid housing, valve member or drive housing.
  • an inner wall of the fluid housing, the drive housing or the valve member can be provided with the outer ring gear.
  • the fluid housing can be sealed off from the drive housing with a cover, in particular in a fluid-tight manner, preferably hermetically.
  • the planet gears can run on bolts located in the drive housing. In return, a groove can be provided in the valve member, in which the bolts can run freely.
  • a line system for a motor vehicle in particular for cooling an engine or for providing an anode and/or cathode current in a fuel cell
  • the line system includes a control valve according to one of the aspects described above or exemplary embodiments.
  • the line system can be used, for example, to connect a fluid source, in particular a coolant source, to a motor vehicle component to be cooled and/or to be supplied with the fluid.
  • Figure i shows a perspective view of an exemplary embodiment of a control valve according to the invention
  • FIG. 2 shows a plan view of the control valve according to FIG. 1;
  • FIG. 3 is a sectional view of the control valve of Figures 1 and 2 along the line
  • Figure 4 is a sectional view of the control valve of Figures 1 to 3 along the line
  • FIG. 5 shows a further exemplary embodiment of a control valve according to the invention.
  • FIG. 6 shows a sectional view of the control valve of FIG. 5 along the line VI-VI in FIG. 5;
  • FIG. 7 shows a further exemplary embodiment of a control valve according to the invention.
  • FIG. 8 shows a sectional view of the control valve of FIG. 5 along the line VIII--VIII in FIG. 7;
  • FIG. 9 shows a further exemplary embodiment of a control valve according to the invention.
  • Figure io is a sectional view of the control valve of Figure 9 along the line X-X in Figure 9.
  • control valve (1) is used, for example, in a motor vehicle for its thermal management and is used to distribute, mix, shut off and/or adjust fluid flows.
  • the control valve (1) in particular a fluid valve, essentially comprises the following main components: an electromagnetic drive (3); a fluid-carrying housing (5); and an adjustable valve member (7) for closing and at least partially releasing the fluid housing (5) (see Figure 3).
  • the fluid housing (5) comprises a fluid inlet connection (9, 11) and a fluid outlet connection (11, 9) for connection to a line system, for example a motor vehicle.
  • the connectors (9, 11) are designed as hollow, cylindrical tube sections and extend along a common longitudinal axis A. Viewed in the direction of flow, between the fluid inlet connector and the fluid outlet connector (9, 11) is a valve chamber (13), which is the area inside the fluid housing (5) constitutes, in which the valve member (7) can move during an actuating movement.
  • the fluid housing (5) is firmly and cohesively connected to a drive housing (15) of the electromagnetic drive (3).
  • the drive housing (15) in turn has a cover (17) which is firmly and cohesively connected to the drive housing (15) and has an electrical connection point (19).
  • the drive housing (15) including the cover (17) sits essentially centrally on the valve chamber area (13) of the fluid housing (5).
  • the cover (17) hermetically seals the drive housing (15).
  • the attachment to each other can be done, for example, by means of laser welding or hoop welding, with laser welding it being important to ensure that the radially inner component, here the cover (17) is made of a laser-absorbing material, in particular plastic material, while the radially outer component, here the drive housing (15) is made of a laser-transparent material, in particular a plastic material.
  • the control valve (1) according to FIGS. 1 to 4 is used, for example, to set a fluid flow, such as a coolant flow, entering via the fluid inlet connection (9, 11), i.e. a fluid volume, in particular coolant volume, exiting via the fluid outlet connection of the control valve (1). , set.
  • the control valve can open, close or partially release the full flow cross-section within the fluid valve (5), depending on requirements or adjustments, which can be made, for example, by higher-level control electronics, such as motor vehicle electronics.
  • the electrical connection can be made, for example, via the electrical connection point (19).
  • FIG. 2 shows a plan view of the control valve (1) according to FIG. 1.
  • a line III-III is also drawn in FIG. 2, according to which the sectional view according to FIG. 3 is generated.
  • the functioning of the control valve (1) is described in more detail with reference to FIG.
  • control valve (7) is housed inside the fluid housing (5) and is mounted so as to be rotatable about an axis of rotation which is indicated by the reference numeral (R).
  • the control valve (7) according to the exemplary embodiments is a rotary piston.
  • the rotary piston has a central bore (21) which is aligned with respect to a fluid passage (23) defined by the fluid housing (5) in order to permit fluid flow through the control valve (1).
  • the fluid channel (23) is formed by the tubular fluid inlet connection (9, 11), the tubular
  • Fluid outlet connection (11, 9) and the inner bore (21) of the valve member (7) can be arranged between the valve member (7) and the inner wall of the fluid housing (5) in order to ensure tightness in the closed position (5).
  • the seals (25, 27) are arranged in the area of a valve seat (29) of the fluid housing (5), which cooperates with the valve member (7) to close and in particular to open the fluid channel (23).
  • the fluid housing (5) comprises an annular flange (31) extending away from the cylindrical outer lateral surfaces of the fluid inlet and fluid outlet connections (9,11) and at least partially delimiting the valve chamber (13), on which the Drive housing (15) is seated.
  • a front end (33) of the annular flange (31) is materially connected to the drive housing (15), in particular welded.
  • the drive housing (15) is closed in the direction of the fluid housing (5).
  • the drive housing (15) has a shell shape.
  • the fluid housing (5) is open to the environment in the area of the annular flange (31), in particular in the direction of the drive housing (15) and is closed by the latter, in particular hermetically sealed. In this respect, the fluid housing (5) is hermetically separated from the drive housing (15). Fluid from the fluid housing (5) cannot get into the drive housing (15).
  • the essential components of the electromagnetic drive (3) are accommodated within the drive housing (15), apart from the rotor (35), which is accommodated within the fluid housing (5).
  • the stator (37) in particular consisting of the coil (39) and yoke (41), indicated in Figure 4, is oriented essentially perpendicular to the axis of rotation (R) and the rotor (35) surrounds radially on the outside.
  • the rotor (35) arranged in the fluid area is positively and/or non-positively coupled to the valve member (7) in order to communicate the rotary drive force generated by the electromagnetic drive (3) to the valve member for actuating the same.
  • the power transmission between the stator (37) and the rotor (35) takes place without contact and without contact, namely by magnetism.
  • a printed circuit board (40) is also provided.
  • the rotatable mounting of the rotary piston valve member (7) can also be seen in FIG.
  • the rotatable mounting is realized via rotary bearings (41, 43), through which the axis of rotation (R) runs.
  • the advantage of the embodiment according to FIG. 3 is that the radial bearings (41, 43) are located in the fluid area, that is, at least in the open valve member state, the fluid flows or flows around them. This entails reliable, in particular permanent, lubrication of the bearings (41, 43).
  • the bearings (41, 43) are realized by peg-recess engagement structures.
  • the bearing (41) of the valve member (7) on the valve housing (5) takes place via a bearing pin (45) on the valve member side, which engages in a bearing recess on the fluid housing side.
  • the bearing (43) on the drive housing side is realized via the bearing pin (49) on the drive housing side, which is divided into a valve member-side bearing recess (51) engages. It has been found according to the invention that even when the rotor (35) and stator (37) are hermetically separated, there is reliable power transmission between the electromagnetic actuator (3) and the control valve (7) to be actuated.
  • control valve (1) can be made significantly more compact and additional sealing measures can be dispensed with. Another advantage is that a significantly more efficient and less expensive control valve (1) can be created. Less expensive and/or less powerful electromagnetic actuators (3) can be used.
  • FIG. 4 shows a further partial sectional view of the control valve (1), which was generated using the line IV-IV from FIG.
  • the sectional view according to FIG. 4 essentially serves to illustrate the structure of the electromagnetic drive (3).
  • the electromagnetic drive (3) which is an electric motor, for example, consists of three stator units (37), each of which includes a yoke (41) and a coil (39) wound around it.
  • the stator units (37) are arranged concentrically with respect to the central valve member (7) and the rotor (35) which is non-rotatably connected to the valve member.
  • the electromagnetic drive (3) is connected to the valve member (7) via a planetary gear, which is generally indicated by the number (53).
  • a planetary gear which is generally indicated by the number (53).
  • a first embodiment of a control valve (1) according to the invention with a planetary gear (53) for force-transmitting coupling between drive (3) and valve member (7) is described.
  • the driving force provided by the drive (3) is communicated via the rotor (35) to the planetary gear (53), whose output toothing drives the valve member (7).
  • the output toothing has a central sun wheel (55), three planetary wheels (57) rotating around the sun wheel (55) and an outer ring gear (59).
  • the planet gears (57) mesh both with the sun gear (55) and with the outer ring gear (59), which is arranged on the valve member side, in particular is introduced or incorporated into the valve member (7).
  • the outer ring gear (59) can be made in one piece with the valve member (7).
  • the valve member (7) comprises an annular base (73) extending radially outwards and an adjoining, circumferential annular flange (71) which is oriented essentially perpendicular to the base (73) and on the radial inside of which the outer ring (59) is formed is.
  • the base (73) and the annular flange (71) are designed in such a way that the annular flange (71) can surround or enclose the planetary gears (53) radially on the outside, so that the planetary gears (53) are essentially completely and circumferentially separated from the valve member (7 ) are bordered.
  • the driving force is transmitted from the rotor (35) to the sun gear (55), which is mounted on a bearing journal (61) of the valve member (7).
  • the bearing journal (61) is arranged essentially coaxially to the axis of rotation R.
  • the driven sun gear (55) drives the planetary gears (57), which are supported on the outer rim (59) and drive the valve member (7), i. H. set in a rotational movement around the axis of rotation R.
  • the planet gears (57) are in turn rotatably mounted with respect to the valve member (7) and the drive housing (15) via bearing journals (65) on the drive housing side.
  • the bearing journals (65) on the drive housing extend downward parallel to the axis of rotation R in the direction of the fluid housing (5).
  • the bearing journals (65) on the drive housing each project into a recess formed in the valve member (7), which acts as a bearing (67) for the bearing journals (65).
  • the bearings (67) also guide the valve member (7) relative to the drive housing (15) during its rotational movement.
  • FIGS. 7 and 8 or 9 and 10 differ from the embodiment of FIGS. 5 and 6 in the output toothing.
  • One difference is that the planet gears (57) are rotatably mounted with respect to the bearing journals (63) on the valve member side, which are oriented essentially parallel to the axis of rotation R.
  • the drive housing (15) of the embodiments of FIGS. 7 and 8 or 9 and 10 therefore has no bearing journals (65) on the drive housing side.
  • the annular base (73) of the valve member (7) according to Figures 7 to 10 is dimensioned smaller in the radial direction than the base (73) of the valve member (7) according to Figure 5. Furthermore, the valve member (7) of Figures 7 to 10 does not include one Ring flange (71) which has the output gearing.
  • the drive housing (15) comprises a toothed flange (77) which extends parallel to the axis of rotation R in the direction of the fluid housing (5) and on which the output toothing is formed radially on the inside.
  • the drive housing (15) can be inserted or pushed telescopically into the fluid housing (5) by means of the toothed flange (77). For example, assembly can take place with the formation of a press fit between the drive housing (15) and the fluid housing (5).
  • the outer ring (59) is part of the fluid housing (5).
  • the annular flange (31) opens into a fastening flange (75) which, on its radial inner side, encloses the outer rim (59) to form the output toothing with the planet gears (53).
  • the drive housing (15) is not pushed or inserted telescopically into the fluid housing (5), but, essentially analogously to the embodiment according to Figure 3, on a front end (33) of the annular flange (31 ) or the mounting flange (75).
  • a cover (69) designed essentially as a flat plate is used to fix the position of the planet gears (57) in the planetary gear (53).
  • the outer rim (59) can be arranged on the cover side (not shown) or on the fluid housing side (FIGS. 9 and 10), namely on an inner wall of the fluid housing (5).
  • the outer ring gear (59) can be made in one piece with the fluid housing (5).
  • the fluid housing (5) and drive housing (15) as well as the drive housing (15) and cover (17) are fastened to one another by means of laser welding.
  • the substantially flat cover (17) can be adapted to a dimension of the drive housing (15) in terms of its dimension transverse to the axis of rotation R, in particular such that the cover (17) is flush with the drive housing (15).
  • the cover (17) has a peripheral welding flange (79) which bears against an inside (81) of the drive housing (15) and is welded to it.
  • the radially inner component, here the drive housing (15) is made of a laser-absorbing material, in particular plastic material
  • the radially outer component, here the cover (17) is made of a laser-transparent material, in particular a plastic material.
  • the fluid housing and drive housing are also attached to one another by means of laser welding, with the radially inner component, namely the fluid housing (5), being made from a laser-absorbing material, in particular plastic material, while the radially outer component, namely the drive housing (15), is made from a laser-transparent material, in particular a plastic material.
  • the drive housing (15) has a welding flange (83) to be positioned radially on the outside in relation to the fluid housing (5), and the fluid housing (5) has a welding flange (83) with respect to the welding flange (83) to be positioned radially on the inside.

Abstract

The present invention relates to a control valve (1), more particularly a fluid valve, for setting a fluid flow more particularly of a motor vehicle, comprising a fluid-guiding fluid housing (5), an adjustable valve member (7) which can be rotated about a rotation adjustment axis (R) to close and at least partially release the fluid housing, and an electromagnetic drive (3) with a rotor (35) which is coupled in an interlocking and/or frictional manner to the valve member and with a stator (37) allocated to the rotor, the stator being accommodated in a drive housing (15) which is hermetically separated from the fluid housing.

Description

Stellventil und Leitungssystem Control valve and piping system
Die vorliegende Erfindung betrifft ein Stellventil, insbesondere ein Fluidventil, zum Einstellen einer Fluidströmung insbesondere eines Kraftfahrzeugs. Des Weiteren stellt die vorliegende Erfindung ein Leitungssystem für ein Kraftfahrzeug, insbesondere zum Kühlen eines Motors oder zum Bereitstellen eines Anoden- und/oder Kathodenstroms in einer Brennstoffzelle, bereit. The present invention relates to a control valve, in particular a fluid valve, for adjusting a fluid flow, in particular in a motor vehicle. Furthermore, the present invention provides a line system for a motor vehicle, in particular for cooling an engine or for providing an anode and/or cathode current in a fuel cell.
Zum Einstellen einer Fluidströmung in einem Fluidkreislauf ist es bekannt, mit Ventilsitzen kooperierende Ventilglieder zu verwenden. Dabei sind den Ventilsitzen Durchflussquerschnitten von Leitungen zugeordnet, die von der Fluidströmung durchströmt werden. Zum wenigstens teilweise Öffnen oder Schließen der Durchflussquerschnitte können die Ventilglieder innerhalb der Leitung gestellt werden. Zum Stellen der Ventilglieder werden vermehrt elektromagnetische Antriebe mit Elektromotoren eingesetzt. Dabei wird in der Regel ein Rotor des Elektromagneten angetrieben, der über Koppelelemente, wie eine Stellstange, mit dem Ventilglied verbunden ist. Die Stellstange ist dabei durch eine Gehäuseöffnung in der Leitung geführt, um den außerhalb der Leitung angeordneten elektromagnetischen Antrieb zum Stellen des Ventilglieds mit diesem stellkraftübertragungsgemäß zu verbinden. Darin ist zum einen nachteilig, dass eine aufwändige Abdichtung im Bereich der Gehäuseöffnung sichergestellt sein muss. Zum anderen ist damit hoher Energieverbrauch verbunden. Dies hängt insbesondere damit zusammen, dass hohe Reibungskräfte überwunden werden müssen, die durch die Abdichtung zwischen Stellstange und Gehäuseöffnung resultieren. To adjust a fluid flow in a fluid circuit, it is known to use valve members that cooperate with valve seats. Flow cross sections of lines through which the fluid flow flows are assigned to the valve seats. To at least partially open or close the flow cross sections, the valve members can be positioned within the line. Electromagnetic drives with electric motors are increasingly being used to position the valve members. As a rule, a rotor of the electromagnet is driven, which is connected to the valve member via coupling elements such as an actuating rod. The actuating rod is guided through a housing opening in the line in order to connect the electromagnetic drive, which is arranged outside of the line, for actuating the valve member to the latter in terms of force transmission. On the one hand, it is disadvantageous that a complex seal has to be ensured in the area of the housing opening. On the other hand, this involves high energy consumption. This is particularly related to the fact that high frictional forces that result from the seal between the actuating rod and the housing opening have to be overcome.
Aus EP 2909515 Bi ist ein Wasserventil mit einem Wasser führenden Leitungsabschnitt bekannt, in dem ein Ventilglied angeordnet ist, das zum Schließen und Freigeben des Leitungsabschnitts mittels einer translatorisch bewegbaren Stellstange stellbar ist. Zum Betätigen der Stellstange ist ein Elektromotor vorgesehen, wobei der Stator des Elektromotors in einem separaten Gehäuseteil angeordnet ist und der Rotor kraftübertragungsgemäß mit der Stellstange derart verbunden ist, dass eine Rotation des Rotors in eine translatorischen Bewegung der Stellstange umgewandelt wird. Der Rotor und der Stator sind durch eine unmagnetische Hülse voneinander getrennt. Ferner ist ein zusätzlicher Gehäusepfropfen zum Verbinden der beiden Gehäuseteile vorgesehen. In dem Pfropfen ist eine zentrale Durchgangsöffnung für die Stellstange eingebracht. Bei EP 2909515 Bi existiert die oben beschriebene Dichtungsproblematik sowie die damit verbundenen Energieverluste. Ferner ist die Konstruktion des Wasserventils gemäß EP 2909515 Bi aufwendig und bedarf eines hohen Bauraums quer zur Wasserströmungsrichtung. From EP 2909515 Bi a water valve with a water-carrying line section is known, in which a valve member is arranged, which can be adjusted to close and release the line section by means of a translationally movable actuating rod. An electric motor is provided to actuate the actuating rod, wherein the stator of the electric motor is arranged in a separate housing part and the rotor is connected in terms of force transmission to the actuating rod in such a way that a rotation of the rotor is converted into a translational movement of the actuating rod. The rotor and stator are separated from each other by a non-magnetic sleeve. Furthermore, an additional housing plug is provided for connecting the two housing parts. A central passage opening for the actuating rod is introduced into the stopper. In EP 2909515 Bi, there is the sealing problem described above and the associated energy losses. Furthermore, the construction of the water valve according to EP 2909515 Bi is complex and requires a large amount of space transverse to the water flow direction.
Es ist Aufgabe der vorliegenden Erfindung, die Nachteile aus dem bekannten Stand der Technik zu überwinden, insbesondere ein Stellventil mit verringertem Energieverbrauch und/oder verringertem Bauraumbedarfbereitzustellen. It is the object of the present invention to overcome the disadvantages of the known prior art, in particular to provide a control valve with reduced energy consumption and/or reduced installation space requirements.
Diese Aufgabe wird durch die Merkmale der unabhängigen Ansprüche gelöst. This object is solved by the features of the independent claims.
Danach ist ein Stellventil zum Einstellen einer Fluidströmung insbesondere eines Kraftfahrzeugs bereitgestellt. Das Stellventil kann auch als Fluidventil ausgestaltet sein bzw. bezeichnet werden. Gattungsgemäße Stellventile werden beispielsweise in Kraftfahrzeugen, insbesondere im Kraftfahrzeugmotorbereich und/oder im Kraftfahrzeugbatteriebereich bei elektromotorisch betriebenen Kraftfahrzeugen, zu deren Thermomanagement eingesetzt, das heißt zum Verteilen, Mischen, Absperren und dergleichen von Fluidströmungen, wie Kühlmittelströmungen. According to this, a control valve for adjusting a fluid flow, in particular in a motor vehicle, is provided. The control valve can also be designed or referred to as a fluid valve. Generic control valves are used, for example, in motor vehicles, in particular in the motor vehicle engine area and/or in the motor vehicle battery area in motor vehicles operated by electric motors, for their thermal management, i.e. for distributing, mixing, shutting off and the like of fluid flows, such as coolant flows.
Das Stellventil umfasst ein fluidführendes Fluidgehäuse. Das Fluidgehäuse kann einen Fluidkanal aufweisen. Desweiteren kann das Fluidgehäuse einen Fluideintrittsstutzen und einen Fluidaustrittsstutzen zum Koppeln an ein Leitungssystem eines Kraftfahrzeugs aufweisen. Über den Fluideintrittsstutzen kann das Fluid in das Fluidgehäuse gelangen und es über den Fluidaustrittsstutzen wieder verlassen. Zwischen Fluideintrittsstutzen und Fluidaustrittsstutzen in Strömungsrichtung des Fluids betrachtet kann sich ein Ventilraum befinden, in dem ein Ventilglied zum Schließen und wenigstens teilweise Freigeben des Fluidgehäuses, insbesondere des Fluidkanals, bewegbar ist. Das Stellventil umfasst ferner ein stellbares Ventilglied, das zum Schließen und wenigstens teilweise Freigeben des Fluidgehäuses, insbesondere des Fluidkanals, um eine Rotationsstellachse rotierbar ist. Das Ventilglied kann demnach auch als Drehkolben bezeichnet werden beziehungsweise ausgebildet sein. Insbesondere kann derjenige Raum, in dem sich das Ventilglied um seine Rotationsstellachse rotieren kann, als Ventilraum bezeichnet werden. Zwischen dem Ventilglied und dem Ventilgehäuse kann wenigstens eine Dichtung angeordnet sein, die im Schließzustand des Ventilglieds beziehungsweise des Stellventils die Dichtigkeit sicherstellt. Beispielsweise ist die Rotationsstellachse im Wesentlichen senkrecht zur Strömungsrichtung des Fluids durch das Fluidgehäuse und/oder zur Längserstreckung des Fluidgehäuses, insbesondere des Fluideintritts- und des Fluidaustrittsstutzens angeordnet. Beispielsweise kann das Ventilglied so gelagert sein, dass im Wesentlichen ausschließlich ein Drehbewegungsfreiheitsgrad des Ventilglieds besteht. The control valve includes a fluid-carrying fluid housing. The fluid housing can have a fluid channel. Furthermore, the fluid housing can have a fluid inlet connector and a fluid outlet connector for coupling to a line system of a motor vehicle. The fluid can enter the fluid housing via the fluid inlet connection and leave it again via the fluid outlet connection. A valve chamber, in which a valve member can be moved to close and at least partially open the fluid housing, in particular the fluid channel, can be located between the fluid inlet connection and the fluid outlet connection, viewed in the flow direction of the fluid. The control valve also includes an adjustable valve member which is rotatable about a rotational control axis in order to close and at least partially open the fluid housing, in particular the fluid channel. The valve member can therefore also be referred to as a rotary piston or be designed. In particular, the space in which the valve member can rotate about its rotational adjustment axis can be referred to as the valve space. At least one seal can be arranged between the valve member and the valve housing, which seal ensures tightness when the valve member or the control valve is in the closed state. For example, the rotational adjustment axis is arranged essentially perpendicularly to the direction of flow of the fluid through the fluid housing and/or to the longitudinal extension of the fluid housing, in particular the fluid inlet and fluid outlet connections. For example, the valve member can be mounted in such a way that there is essentially only one degree of freedom of rotational movement of the valve member.
Erfindungsgemäß umfasst das Stellventil ferner einen elektromagnetischen Antrieb mit einem mit dem Ventilglied form- und/oder kraftschlüssig gekoppelten Rotor und einem dem Rotor zugeordneten Stator. Der elektromagnetische Antrieb kann beispielsweise ein Elektromotor sein. Der Stator ist in einem Antriebsgehäuse untergebracht, das von dem Fluidgehäuse hermetisch getrennt ist. Alternativ könnte auch der Rotor in dem getrennten Antriebsgehäuse untergebracht sein. Dabei kann jeweils die andere Komponente von Rotor und Stator, insbesondere der Rotor, in dem Fluidgehäuse untergebracht sein. Das Antriebsgehäuse kann als dasjenige Gehäuseteil des Stellventils bezeichnet werden, das im Wesentlichen die Komponenten des elektromagnetischen Antriebs unterbringt. Das Antriebsgehäuse kann ferner separat von dem Fluidgehäuse herstellt sein und als Vormontageeinheit inkl. den elektromagnetischen Komponenten des Antriebs bereitgestellt sein. Mittels des elektromagnetischen Antriebs und der hermetischen Trennung der Gehäuseteile, also von Fluid- und Antriebsgehäuse, ist eine berührungslose, kontaktfreie Kraftübertragung von Antrieb auf Ventilglied realisiert. Beispielsweise bedarf es keiner sich durch die Gehäuseteile erstreckenden Stell- beziehungsweise Ventilstange, die den Antrieb kraftschlüssig mit dem Ventilglied verbindet, insbesondere eine Rotationsantriebskraft des Antriebs in eine Rotationsbewegung des Stellglieds überträgt. Dadurch kann zum einen ein deutlich einfacherer und kompakterer Aufbau des Stellventils erreicht werden. Es kann auf Abdichtungen verzichtet werden. Ein weiterer Vorteil besteht darin, dass das Stellventil im Vergleich zum Stand der Technik deutlich effizienter ist. Die zwischen der Stell- beziehungsweise Ventilstange und deren Abdichtung gegenüber den Gehäuseteilen auftretenden Reibungskräfte müssen bei der kontaktfreien und berührungslosen Kraftübertragung nicht mehr beim Stellen des Ventilglieds überwunden werden. According to the invention, the control valve also comprises an electromagnetic drive with a rotor coupled to the valve member in a positive and/or non-positive manner and with a stator associated with the rotor. The electromagnetic drive can be an electric motor, for example. The stator is housed in a drive housing that is hermetically separated from the fluid housing. Alternatively, the rotor could also be accommodated in the separate drive housing. In this case, the other component of the rotor and stator, in particular the rotor, can be accommodated in the fluid housing. The drive housing can be referred to as that housing part of the control valve that essentially accommodates the components of the electromagnetic drive. The drive housing can also be manufactured separately from the fluid housing and be provided as a preassembled unit including the electromagnetic components of the drive. By means of the electromagnetic drive and the hermetic separation of the housing parts, that is to say the fluid and drive housing, a non-contact, contact-free power transmission from the drive to the valve member is implemented. For example, there is no need for an actuating or valve rod extending through the housing parts, which frictionally connects the drive to the valve member, and in particular transmits a rotational drive force of the drive into a rotational movement of the actuator. As a result, on the one hand, a significantly simpler and more compact design of the control valve can be achieved. There is no need for seals. A Another advantage is that the control valve is significantly more efficient compared to the prior art. The frictional forces occurring between the actuating or valve rod and its seal relative to the housing parts no longer have to be overcome when actuating the valve member in the case of contact-free and non-contact power transmission.
Gemäß einem weiteren Aspekt der vorliegenden Erfindung, der mit den vorhergehenden Aspekten und beispielhaften Ausführungen kombinierbar ist, ist ein Stellventil, insbesondere Fluidventil, zum Einstellen einer Fluidströmung, insbesondere eines Kraftfahrzeugs, bereitgestellt. According to a further aspect of the present invention, which can be combined with the preceding aspects and exemplary embodiments, a control valve, in particular a fluid valve, is provided for adjusting a fluid flow, in particular in a motor vehicle.
Das Stellventil umfasst ein fluidführendes Fluidgehäuse. Das Fluidgehäuse kann einen Fluidkanal aufweisen. Desweiteren kann das Fluidgehäuse einen Fluideintrittsstutzen und einen Fluidaustrittsstutzen zum Koppeln an ein Leitungssystem eines Kraftfahrzeugs aufweisen. Über den Fluideintrittsstutzen kann das Fluid in das Fluidgehäuse gelangen und es über den Fluidaustrittsstutzen wieder verlassen. Zwischen Fluideintrittsstutzen und Fluidaustrittsstutzen in Strömungsrichtung des Fluids betrachtet kann sich ein Ventilraum befinden, in dem ein Ventilglied zum Schließen und wenigstens teilweise Freigeben des Fluidgehäuses, insbesondere des Fluidkanals, bewegbar ist. The control valve includes a fluid-carrying fluid housing. The fluid housing can have a fluid channel. Furthermore, the fluid housing can have a fluid inlet connector and a fluid outlet connector for coupling to a line system of a motor vehicle. The fluid can enter the fluid housing via the fluid inlet connection and leave it again via the fluid outlet connection. A valve chamber, in which a valve member can be moved to close and at least partially open the fluid housing, in particular the fluid channel, can be located between the fluid inlet connection and the fluid outlet connection, viewed in the flow direction of the fluid.
Das Stellventil umfasst ferner ein Ventilglied, das zum Schließen und wenigstens teilweise Freigeben des Fluidgehäuses, insbesondere des Fluidkanals, stellbar ist, insbesondere um eine Rotationsstellachse rotierbar ist. Das Ventilglied kann als Drehkolben ausgebildet sein. Insbesondere kann derjenige Raum, in dem sich das Ventilglied um seine Rotationsstellachse rotieren oder entlang seiner Translationsstellachse verlagern kann, als Ventilraum bezeichnet werden. Zwischen dem Ventilglied und dem Ventilgehäuse kann wenigstens eine Dichtung angeordnet sein, die im Schließzustand des Ventilglieds beziehungsweise des Stellventils die Dichtigkeit sicherstellt. Beispielsweise ist die Rotationsstellachse im Wesentlichen senkrecht zur Strömungsrichtung des Fluids durch das Fluidgehäuse und/oder zur Längserstreckung des Fluidgehäuses, insbesondere des Fluideintritts- und des Fluidaustrittsstutzens angeordnet. The control valve also includes a valve member that can be adjusted, in particular rotated about a rotational adjustment axis, to close and at least partially open the fluid housing, in particular the fluid channel. The valve member can be designed as a rotary piston. In particular, the space in which the valve member can rotate about its rotational control axis or can be displaced along its translation control axis can be referred to as the valve space. At least one seal can be arranged between the valve member and the valve housing, which seal ensures tightness when the valve member or the control valve is in the closed state. For example, the rotational adjustment axis is arranged essentially perpendicularly to the direction of flow of the fluid through the fluid housing and/or to the longitudinal extension of the fluid housing, in particular the fluid inlet and fluid outlet connections.
Erfindungsgemäß umfasst das Stellventil einen elektromagnetischen Antrieb mit einem mit dem Ventilglied form- und/oder kraftschlüssig gekoppelten und von dem Antrieb betätigten Rotor. Der Rotor ist gemäß dem zweiten erfindungsgemäßen Aspekt derart in dem Fluidgehäuse angeordnet, dass, zumindest im geöffneten Zustand des Ventilglieds, der Rotor von der Fluidströmung umströmt ist. Durch die Unterbringung des Rotors in dem Fluidbereich, also einem vom Fluidgehäuse definierten, mit Fluid umströmten Fluidgehäuseabschnitt, kann ein besonders kompaktes Stellventil generiert werden. Ventilglied und Rotor können kompakt und bauraumsparend form- und/oder kraftschlüssig aneinander gekoppelt sein. Durch die Anordnung im Fluidströmungsbereich des Rotors sind die Kopplungsstellen zwischen Rotor und Ventilglied zumindest im geöffneten Zustand des Ventilglieds, insbesondere permanent, von Fluid geschmiert. Auch die zweite erfindungsgemäße Maßnahme ermöglicht es, auf eine sich durch das Fluidgehäuse und das Antriebsgehäuse erstreckende Stell- beziehungsweise Ventilstange und die damit verbundenen Abdichtungsprobleme verzichten zu können. According to the invention, the control valve comprises an electromagnetic drive with a positive and / or non-positively coupled to the valve member and from the drive actuated rotor. According to the second aspect of the invention, the rotor is arranged in the fluid housing in such a way that, at least in the open state of the valve member, the fluid flow flows around the rotor. By accommodating the rotor in the fluid area, ie a fluid housing section defined by the fluid housing and around which fluid flows, a particularly compact control valve can be generated. The valve member and rotor can be coupled to one another in a compact and space-saving manner in a positive and/or non-positive manner. Due to the arrangement in the fluid flow area of the rotor, the coupling points between the rotor and the valve member are lubricated by fluid, in particular permanently, at least in the open state of the valve member. The second measure according to the invention also makes it possible to dispense with an actuating or valve rod extending through the fluid housing and the drive housing and the sealing problems associated therewith.
In einer beispielhaften Ausführung der vorliegenden Erfindung ist der Rotor drehfest mit dem Ventilglied gekoppelt. Somit kann sichergestellt sein, dass die Drehantriebskraft des elektromagnetischen Antriebs verlustfrei auf das Ventilglied übertragen wird, um dieses zu stellen, insbesondere zu schließen oder wenigstens teilweise zu öffnen. Alternativ oder zusätzlich kann das Ventilglied zum Stellen um eine Rotationsstellachse rotierbar sein. Das Ventilglied kann demnach als Drehkolben bezeichnet beziehungsweise ausgestaltet sein. Das Ventilglied kann beispielsweise bezüglich seiner axialen Position in Bezug auf die Rotationsstellachse fest beziehungsweise stationär angeordnet sein. Beispielsweise kann ausschließlich ein Drehbewegungsfreiheitsgrad des Ventilglieds bestehen. In an exemplary embodiment of the present invention, the rotor is non-rotatably coupled to the valve member. It can thus be ensured that the rotary drive force of the electromagnetic drive is transmitted without loss to the valve member in order to position it, in particular to close it or at least partially open it. Alternatively or additionally, the valve member can be rotatable about a rotational adjustment axis for adjustment. Accordingly, the valve member can be designated or designed as a rotary piston. The valve member can, for example, be arranged in a fixed or stationary manner with respect to its axial position in relation to the rotational adjustment axis. For example, there can be only one degree of freedom of rotational movement of the valve member.
In einer weiteren beispielhaften Ausführung der vorliegenden Erfindung ist das Ventilglied bezüglich des Antriebsgehäuses und des Fluidgehäuses rotatorisch gelagert. Beispielsweise ist das Ventilglied über je eine Lagerung, insbesondere ein Rotationslager, an dem Antriebsgehäuse und dem Fluidgehäuse gelagert. Beispielsweise können die Lagerungen durch einen ventilgliedseitigen Lagerungszapfen und eine gehäuseteilseitige Lagerungsvertiefung, die ineinander eingreifen, realisiert sein. Beispielsweise besitzt das Ventilglied einen dem Fluidgehäuse zugewandten Lagerungszapfen, der mit einer fluidgehäuseseitigen Lagerungsvertiefung zusammenwirkt. Desweiteren kann das Ventilgehäuse eine dem Antriebsgehäuse zugewandte Lagerungsvertiefung aufweisen, die mit einem antriebsgehäuseseitigen Lagerungszapfen zusammenwirkt. Die Lagerungen können sich in axialer Flucht zueinander befinden und/oder entlang der Rotationsstellachse orientiert sein. In a further exemplary embodiment of the present invention, the valve member is rotatably mounted with respect to the drive housing and the fluid housing. For example, the valve member is mounted on the drive housing and the fluid housing via a respective bearing, in particular a rotary bearing. For example, the bearings can be realized by a bearing journal on the valve member side and a bearing depression on the housing part side, which engage in one another. For example, the valve member has a bearing pin which faces the fluid housing and which interacts with a bearing depression on the fluid housing side. Furthermore, the valve housing can have a bearing recess facing the drive housing, which is connected to a drive housing-side Bearing pin interacts. The bearings can be in axial alignment with one another and/or oriented along the rotational adjustment axis.
Gemäß einer beispielhaften Weiterbildung des erfindungsgemäßen Stellventils sind die Lagerungen derart insbesondere in dem Fluidgehäuse angeordnet, das sie permanent von Fluid umströmt sind. Auf diese Weise können die Lagerungen kontinuierlich geschmiert werden. Es bedarf keiner zusätzlichen Schmiermittelzuführung. Die Schmierung kann ausschließlich über die ohnehin strömende Fluidströmung realisiert werden. According to an exemplary development of the control valve according to the invention, the bearings are arranged in particular in the fluid housing in such a way that fluid flows permanently around them. In this way, the bearings can be continuously lubricated. No additional lubricant supply is required. Lubrication can only be realized via the fluid flow that is flowing anyway.
Gemäß einer weiteren beispielhaften Ausführung der vorliegenden Erfindung sind der Rotor und ein Stator des elektromagnetischen Antriebs und ggf. eine Lagerung zum Lagern des Ventilglieds an dem Antriebsgehäuse, wie ein Lagerungszapfen, in Bezug auf die Rotationsstellachse auf gleicher Höhe angeordnet. Auf diese Weise kann insbesondere der Bauraum in Rotationsstellachsenrichtung möglichst gering gehalten werden. Mit anderen Worten kann die Lagerung radial in Bezug auf die Rotationsstellachse von dem Rotor umgeben sein, der wiederum radial in Bezug auf die Rotationsstellachse von dem Stator umgeben sein kann. According to a further exemplary embodiment of the present invention, the rotor and a stator of the electromagnetic drive and possibly a bearing for mounting the valve member on the drive housing, such as a bearing pin, are arranged at the same height in relation to the rotational adjustment axis. In this way, in particular, the installation space in the direction of the rotational adjustment axis can be kept as small as possible. In other words, the bearing can be surrounded radially with respect to the rotational adjustment axis by the rotor, which in turn can be radially surrounded with respect to the rotational adjustment axis by the stator.
In einer weiteren beispielhaften Ausführung des erfindungsgemäßen Stellventils sind das Fluidgehäuse und das Antriebsgehäuse stoffschlüssig miteinander verbunden. Die stoffschlüssige Verbindung kann beispielsweise durch Schweißen, insbesondere Laserschweißen oder Reibschweißen, oder Löten erreicht werden. Durch die stoffschlüssige Verbindung der Gehäuseteile kann auf zusätzliche Abdichtmaßnahmen, insbesondere Abdichtelemente, verzichtet werden. In einer beispielhaften Ausführung sind Fluidgehäuse und Antriebsgehäuse mittels Laserschweißen aneinander befestigt, wobei das radial innere Bauteil, beispielsweise das Fluidgehäuse aus einem laserabsorbierenden Material oder Werkstoff, insbesondere Kunststoffmaterial, hergestellt ist, während das radial äußere Bauteil, beispielsweise das Antriebsgehäuse aus einem lasertransparenten Material oder Werkstoff, insbesondere aus Kunststoffmaterial, hergestellt ist. In a further exemplary embodiment of the control valve according to the invention, the fluid housing and the drive housing are integrally connected to one another. The integral connection can be achieved, for example, by welding, in particular laser welding or friction welding, or soldering. Due to the integral connection of the housing parts, additional sealing measures, in particular sealing elements, can be dispensed with. In an exemplary embodiment, the fluid housing and drive housing are attached to one another by means of laser welding, with the radially inner component, for example the fluid housing, being made of a laser-absorbing material or material, in particular plastic material, while the radially outer component, for example the drive housing, is made of a laser-transparent material or material , In particular made of plastic material.
Gemäß einer weiteren beispielhaften Ausführung des erfindungsgemäßen Stellventils sind das Fluidgehäuse und das Antriebsgehäuse frei von einer das Fluidgehäuse und das Antriebsgehäuse verbindenden Durchführung insbesondere für eine die Antriebskraft des Antriebs auf das Ventilglied übertragende Kraftübertragungskomponente, wie eine Stellstange. Somit ist es möglich, das Antriebsgehäuse vollständig von dem Fluidgehäuse zu isolieren beziehungsweise hermetisch abzutrennen. Damit sind keine Schwachstellen in Bezug auf die Abdichtung beziehungsweise Dichtigkeit der Gehäuseteile vorhanden. According to a further exemplary embodiment of the control valve according to the invention, the fluid housing and the drive housing are free of a passage connecting the fluid housing and the drive housing, in particular for a passage that transmits the driving force of the drive to the valve member Power transmission component, such as an adjusting rod. It is thus possible to completely insulate or hermetically separate the drive housing from the fluid housing. This means that there are no weak points with regard to the sealing or tightness of the housing parts.
In einer weiteren beispielhaften Ausführung der vorliegenden Erfindung ist das Antriebsgehäuse insbesondere stoffschlüssig mit einem Deckel verschlossen. Beispielsweise kann der Deckel eine elektrische Anschlussstelle, wie einen elektrischen Gerätestecker, aufweisen oder tragen. Der Deckel mit der elektrischen Anschlussstelle gewährleistet eine einfache Montage beziehungsweise elektrische Anbindung an eine Energiequelle und/oder eine einfache elektrische Verbindung, beispielsweise zu einer Steuereinheit, insbesondere des Kraftfahrzeugs. Der Deckel kann das Antriebsgehäuse hermetisch abschließen. Die Aneinanderbefestigung kann beispielsweise mittels Laserschweißen oder Reibschweißen erfolgen, wobei beim Laserschweißen darauf zu achten ist, dass das radial innere Bauteil, beispielsweise der Deckel aus einem laserabsorbierenden Werkstoff, insbesondere Kunststoffmaterial, hergestellt ist, während das radial äußere Bauteils, beispielsweise das Antriebsgehäuse aus einem lasertransparenten Werkstoff, insbesondere Kunststoffmaterial, hergestellt ist. In einer beispielhaften Ausführung kann es möglich sein, das abgeschlossene Antriebsgehäuse atmungsaktiv auszugestalten. Dabei kann eine gaspermeable Membran eingesetzt werden, die flüssigkeitsabweisend ist. Die gaspermeable Membran kann beispielsweise im Antriebsgehäuse oder im Deckel angeordnet sein. Die Membran kann randseitig, also in Bezug auf die Rotationsachse des Drehkolbens radial außenseitig, eingespannt sein und/oder zum mechanischen Schutz in einem Gitterkäfig positioniert sein. Beispielsweise kann der Gitterkäfig Teil des Deckels sein. Es ist grundsätzlich möglich, die Membran beliebig zu platzieren, wobei sicherzustellen ist, dass die Membran umfänglich eingespannt ist. Die Membran kann eine runde oder eckige Form aufweisen. Beispielsweise wird die Membran eingeschweißt, insbesondere von innen, und möglicherweise mit einem Gitterkäfig geschützt. Grundsätzlich ist ferner sicherzustellen, dass die Membran fluiddicht im Deckel, bzw. im Gitterkäfig, fixiert ist. Ferner ist die Membran so wählen, dass dessen Membranfläche zum Gasaustausch dient und Feuchtigkeit fernhält. In a further exemplary embodiment of the present invention, the drive housing is closed with a cover, in particular with a material connection. For example, the cover can have or carry an electrical connection point, such as an electrical device plug. The cover with the electrical connection point ensures simple assembly or electrical connection to an energy source and/or a simple electrical connection, for example to a control unit, in particular of the motor vehicle. The cover can hermetically seal the drive housing. They can be attached to one another, for example, by means of laser welding or friction welding, with laser welding making sure that the radially inner component, for example the cover, is made of a laser-absorbing material, in particular plastic material, while the radially outer component, for example the drive housing, is made of a laser-transparent material Material, in particular plastic material, is produced. In an exemplary embodiment, it may be possible to make the enclosed drive housing breathable. A gas-permeable membrane that is liquid-repellent can be used here. The gas-permeable membrane can be arranged, for example, in the drive housing or in the cover. The membrane can be clamped at the edge, ie radially on the outside in relation to the axis of rotation of the rotary piston, and/or can be positioned in a lattice cage for mechanical protection. For example, the lattice cage can be part of the cover. In principle, it is possible to place the membrane anywhere, but it must be ensured that the membrane is clamped all around. The membrane can have a round or square shape. For example, the membrane is welded in, especially from the inside, and possibly protected with a lattice cage. In principle, it must also be ensured that the membrane is fixed fluid-tight in the cover or in the lattice cage. Furthermore, the membrane should be selected so that its membrane surface is used for gas exchange and keeps moisture away.
In einer weiteren beispielhaften Ausführung des erfindungsgemäßen Stellventils ist der Antrieb mit dem Ventilglied über ein Planetengetriebe kraftübertragend gekoppelt. Es wurde herausgefunden, dass Dichtungselemente zwischen Ventilglied und Fluidgehäuse notwendig sein können, um die gewünschte Dichtigkeit in den verschiedenen Ventilstellungen des Stellventils zu gewährleisten. Der dabei resultierende erhöhte Kraftaufwand zum Betätigen des Stell-Ventilglieds kann durch das Vorsehen eines Planetengetriebes kompensiert werden. Insbesondere ist es mittels des Planetengetriebes möglich, auf kostengünstige und/oder leistungsarme elektromagnetische Antriebe zurückzugreifen. In a further exemplary embodiment of the control valve according to the invention, the drive is coupled in a force-transmitting manner to the valve member via a planetary gear. It it was found that sealing elements between the valve member and the fluid housing may be necessary in order to ensure the desired tightness in the various valve positions of the control valve. The resulting increased effort required to actuate the control valve member can be compensated for by providing a planetary gear. In particular, the planetary gear makes it possible to use inexpensive and/or low-power electromagnetic drives.
In einer beispielhaften Weiterbildung des erfindungsgemäßen Stellventils ist das Planetengetriebe insbesondere derart angeordnet, dass es wenigstens im geöffneten Zustand des Ventilglieds, insbesondere permanent, von Fluid umströmt ist. Somit kann eine wenigstens im geöffneten Zustand des Ventilglieds, insbesondere kontinuierliche, Schmierung des Planetengetriebes, insbesondere der ineinander kämmenden, Komponenten des Planetengetriebes, ermöglicht werden. In an exemplary development of the control valve according to the invention, the planetary gear is arranged in particular in such a way that fluid flows around it, in particular permanently, at least when the valve member is in the open state. Thus, at least in the open state of the valve member, in particular continuous lubrication of the planetary gear, in particular of the components of the planetary gear that mesh with one another, can be made possible.
In einer weiteren beispielhaften Weiterbildung des erfindungsgemäßen Stellventils weist das Planetengetriebe Planetenräder auf, die drehbar an dem Ventilglied oder dem Antriebsgehäuse gelagert sind und zum Bewegen des Stellglieds mit einem an dem Ventilglied, dem Fluidgehäuse oder dem Antriebsgehäuse angeordneten Außenzahnkranz Zusammenwirken. Beispielsweise kann das Ventilglied oder das Antriebsgehäuse insbesondere in Rotationsrichtung des Ventilglieds orientierte Lagerzapfen aufweisen, die insbesondere einstückig an das Ventilglied oder das Antriebsgehäuse angeformt sind und gegenüber denen die Planetenräder drehbar gelagert sind. Die Planetenräder können alternativ eine drehfest mit den Planetenrädern verbundene Welle aufweisen, die in einer entsprechenden Lagerung im Ventilglied rotierbar aufgenommen beziehungsweise gelagert sind. Beispielsweise ist der Außenzahnkranz in das Ventilglied, das Fluidgehäuse oder das Antriebsgehäuse eingebracht, insbesondere aus einem Stück mit Fluidgehäuse, Ventilglied oder Antriebsgehäuse hergestellt. Mit anderen Worten kann eine Innenwand des Fluidgehäuses, des Antriebsgehäuses oder des Ventilglieds mit dem Außenzahnkranz versehen sein. Ferner kann das Fluidgehäuse zum Antriebsgehäuse hin mit einer Abdeckung insbesondere fluiddicht, vorzugsweise hermetisch, abgeschlossen sein. Die Planetenräder können auf Bolzen laufen, die im Antriebsgehäuse sitzen. Im Ventilglied kann im Gegenzug eine Nut vorgesehen sein, in der die Bolzen frei laufen können. Gemäß einem weiteren Aspekt der vorliegenden Erfindung, der mit den vorhergehenden Aspekten und beispielhaften Ausführungen kombinierbar ist, ist ein Leitungssystem für ein Kraftfahrzeug, insbesondere zum Kühlen eines Motors oder zum Bereitstellen eines Anoden- und/oder Kathodenstroms in einer Brennstoffzelle, bereitgestellt. Das Leitungssystem umfasst ein Stellventil gemäß einem der zuvor beschriebenen Aspekte beziehungsweise beispielhaften Ausführungen. Das Leitungssystem kann beispielsweise dazu dienen, eine Fluidquelle, insbesondere eine Kühlmittelquelle, mit einer zu kühlenden und/oder mit dem Fluid zu versorgenden Kraftfahrzeugkomponente zu verbinden. In a further exemplary development of the control valve according to the invention, the planetary gear has planet wheels which are rotatably mounted on the valve member or the drive housing and interact with an external ring gear arranged on the valve member, the fluid housing or the drive housing to move the control member. For example, the valve member or the drive housing can have bearing journals oriented in particular in the direction of rotation of the valve member, which are particularly integrally formed on the valve member or the drive housing and relative to which the planet wheels are rotatably mounted. Alternatively, the planet gears can have a shaft which is connected in a rotationally fixed manner to the planet gears and which is rotatably accommodated or mounted in a corresponding bearing in the valve member. For example, the outer ring gear is introduced into the valve member, the fluid housing or the drive housing, in particular made in one piece with the fluid housing, valve member or drive housing. In other words, an inner wall of the fluid housing, the drive housing or the valve member can be provided with the outer ring gear. Furthermore, the fluid housing can be sealed off from the drive housing with a cover, in particular in a fluid-tight manner, preferably hermetically. The planet gears can run on bolts located in the drive housing. In return, a groove can be provided in the valve member, in which the bolts can run freely. According to a further aspect of the present invention, which can be combined with the preceding aspects and exemplary embodiments, a line system for a motor vehicle, in particular for cooling an engine or for providing an anode and/or cathode current in a fuel cell, is provided. The line system includes a control valve according to one of the aspects described above or exemplary embodiments. The line system can be used, for example, to connect a fluid source, in particular a coolant source, to a motor vehicle component to be cooled and/or to be supplied with the fluid.
Bevorzugte Ausführungen sind in den Unter ansprüchen angegeben. Preferred embodiments are specified in the dependent claims.
Im Folgenden werden weitere Eigenschaften, Merkmale und Vorteile der Erfindung mittels Beschreibung bevorzugter Ausführungen der Erfindung anhand der beiliegenden beispielhaften Zeichnungen deutlich, in denen zeigen: In the following, further properties, features and advantages of the invention are made clear by means of a description of preferred embodiments of the invention using the accompanying exemplary drawings, in which:
Figur i eine perspektivische Ansicht einer beispielhaften Ausführung eines erfindungsgemäßen Stellventils; Figure i shows a perspective view of an exemplary embodiment of a control valve according to the invention;
Figur 2 eine Draufsicht auf das Stellventil gemäß Figur 1; FIG. 2 shows a plan view of the control valve according to FIG. 1;
Figur 3 eine Schnittansicht des Stellventils der Figuren 1 und 2 gemäß der LinieFigure 3 is a sectional view of the control valve of Figures 1 and 2 along the line
III-III in Figur 2; III-III in Figure 2;
Figur 4 eine Schnittansicht des Stellventils der Figuren 1 bis 3 gemäß der LinieFigure 4 is a sectional view of the control valve of Figures 1 to 3 along the line
IV-IV in Figur 3; IV-IV in Figure 3;
Figur 5 eine weitere beispielhafte Ausführung eines erfindungsgemäßen Stellventils; FIG. 5 shows a further exemplary embodiment of a control valve according to the invention;
Figur 6 eine Schnittansicht des Stellventils der Figur 5 gemäß der Linie VI -VI in Figur 5; FIG. 6 shows a sectional view of the control valve of FIG. 5 along the line VI-VI in FIG. 5;
Figur 7 eine weitere beispielhafte Ausführung eines erfindungsgemäßen Stellventils; FIG. 7 shows a further exemplary embodiment of a control valve according to the invention;
Figur 8 eine Schnittansicht des Stellventils der Figur 5 gemäß der Linie VIII- VIII in Figur 7; Figur 9 eine weitere beispielhafte Ausführung eines erfindungsgemäßen Stellventils; und FIG. 8 shows a sectional view of the control valve of FIG. 5 along the line VIII--VIII in FIG. 7; FIG. 9 shows a further exemplary embodiment of a control valve according to the invention; and
Figur io eine Schnittansicht des Stellventils der Figur 9 gemäß der Linie X-X in Figur 9. Figure io is a sectional view of the control valve of Figure 9 along the line X-X in Figure 9.
In der folgenden Beschreibung beispielhafter Ausführungen erfindungsgemäßer Stellventile anhand der beiliegenden Figuren ist ein erfindungsgemäßes Stellventil im Allgemeinen mit der Bezugsziffer (1) versehen. Das erfindungsgemäße Stellventil (1) wird beispielsweise im Kraftfahrzeug zu dessen Thermomanagement eingesetzt und dient dazu, Fluidströmungen zu verteilen, zu mischen, abzusperren und/oder einzustellen. In the following description of exemplary embodiments of control valves according to the invention with reference to the attached figures, a control valve according to the invention is generally provided with the reference number (1). The control valve (1) according to the invention is used, for example, in a motor vehicle for its thermal management and is used to distribute, mix, shut off and/or adjust fluid flows.
Das Stellventil (1), insbesondere Fluidventil, umfasst im Wesentlichen die folgenden Hauptkomponenten: Einen elektromagnetischen Antrieb (3); ein fluidführendes Gehäuse (5); und ein stellbares Ventilglied (7) zum Schließen und wenigstens teilweise Freigeben des Fluidgehäuses (5) (siehe Figur 3). The control valve (1), in particular a fluid valve, essentially comprises the following main components: an electromagnetic drive (3); a fluid-carrying housing (5); and an adjustable valve member (7) for closing and at least partially releasing the fluid housing (5) (see Figure 3).
Das Fluidgehäuse (5) umfasst einen Fluideintrittsstutzen (9, 11) und einen Fluidaustrittsstutzen (11, 9) zum Anschließen an ein Leitungssystem, beispielsweise eines Kraftfahrzeugs. Die Stutzen (9, 11) sind als hohle, zylindrische Rohrabschnitte ausgebildet und erstrecken sich entlang einer gemeinsamen Längsachse A. In Strömungsrichtung betrachtet zwischen Fluideintrittsstutzen und Fluidaustrittsstutzen (9, 11) befindet sich ein Ventilraum (13), der denjenigen Bereich im Inneren des Fluidgehäuses (5) ausmacht, in dem sich das Ventilglied (7) bei einer Stellbewegung bewegen kann. Das Fluidgehäuse (5) ist fest und stoffschlüssig mit einem Antriebsgehäuse (15) des elektromagnetischen Antriebs (3) verbunden. Das Antriebsgehäuse (15) wiederum weist einen Deckel (17) auf, der mit dem Antriebsgehäuse (15) fest und stoffschlüssig verbunden ist sowie eine elektrische Anschlussstelle (19) aufweist. Das Antriebsgehäuse (15) inklusive Deckel (17) sitzt im Wesentlichen zentral auf dem Ventilraumbereich (13) des Fluidgehäuses (5). Der Deckel (17) schließt das Antriebsgehäuse (15) hermetisch ab. Die Aneinanderbefestigung kann beispielsweise mittels Laserschweißen oder Reifschweißen erfolgen, wobei beim Laserschweißen darauf zu achten ist, dass das radial innere Bauteil, hier der Deckel (17) aus einem laserabsorbierenden Werkstoff, insbesondere Kunststoffmaterial, hergestellt ist, während das radialäußere Bauteils, hier das Antriebsgehäuse (15) aus einem lasertransparenten Werkstoff, insbesondere Kunststoffmaterial, hergestellt ist. The fluid housing (5) comprises a fluid inlet connection (9, 11) and a fluid outlet connection (11, 9) for connection to a line system, for example a motor vehicle. The connectors (9, 11) are designed as hollow, cylindrical tube sections and extend along a common longitudinal axis A. Viewed in the direction of flow, between the fluid inlet connector and the fluid outlet connector (9, 11) is a valve chamber (13), which is the area inside the fluid housing (5) constitutes, in which the valve member (7) can move during an actuating movement. The fluid housing (5) is firmly and cohesively connected to a drive housing (15) of the electromagnetic drive (3). The drive housing (15) in turn has a cover (17) which is firmly and cohesively connected to the drive housing (15) and has an electrical connection point (19). The drive housing (15) including the cover (17) sits essentially centrally on the valve chamber area (13) of the fluid housing (5). The cover (17) hermetically seals the drive housing (15). The attachment to each other can be done, for example, by means of laser welding or hoop welding, with laser welding it being important to ensure that the radially inner component, here the cover (17) is made of a laser-absorbing material, in particular plastic material, while the radially outer component, here the drive housing (15) is made of a laser-transparent material, in particular a plastic material.
Das Stellventil (1) gemäß der Figuren 1 bis 4 dient beispielsweise dazu, eine über den Fluideintrittsstutzen (9, 11) eintretende Fluidströmung, wie eine Kühlmittelströmung, einzustellen, das heißt, ein über den Fluidaustrittsstutzen des Stellventils (1) austretendes Fluidvolumen, insbesondere Kühlmittelvolumen, einzustellen. Beispielsweise kann das Stellventil den vollen Strömungsquerschnitt innerhalb des Fluidventils (5) öffnen, verschließen oder teilweise freigeben, je nach Bedarf oder Einstellung, die beispielsweise durch eine übergeordnete Stellelektronik, wie eine Kraftfahrzeugelektronik, erfolgen kann. Die elektrische Verbindung kann beispielsweise über die elektrische Anschlussstelle (19) erfolgen. The control valve (1) according to FIGS. 1 to 4 is used, for example, to set a fluid flow, such as a coolant flow, entering via the fluid inlet connection (9, 11), i.e. a fluid volume, in particular coolant volume, exiting via the fluid outlet connection of the control valve (1). , set. For example, the control valve can open, close or partially release the full flow cross-section within the fluid valve (5), depending on requirements or adjustments, which can be made, for example, by higher-level control electronics, such as motor vehicle electronics. The electrical connection can be made, for example, via the electrical connection point (19).
Figur 2 zeigt eine Draufsicht auf das Stellventil (1) gemäß Figur 1. In Figur 2 ist ferner eine Linie III-III eingezeichnet, gemäß welcher die Schnittansicht nach Figur 3 generiert ist. Anhand von Figur 3 wird die Funktionsweise des Stellventils (1) näher beschrieben. FIG. 2 shows a plan view of the control valve (1) according to FIG. 1. A line III-III is also drawn in FIG. 2, according to which the sectional view according to FIG. 3 is generated. The functioning of the control valve (1) is described in more detail with reference to FIG.
Wie bereits beschrieben wurde, ist im Inneren des Fluidgehäuses (5) das Stellventil (7) untergebracht und rotierbar um eine Rotationsachse, die mit der Bezugsziffer (R) angedeutet ist, rotierbar gelagert. Bei dem Stellventil (7) gemäß den beispielhaften Ausführungen handelt es sich um einen Drehkolben. Der Drehkolben weist eine zentrale Bohrung (21) auf, die zum Zulassen einer Fluidströmung durch das Stellventil (1) in Bezug auf einen von dem Fluidgehäuse (5) begrenzten Fluidkanal (23) ausgerichtet ist. Der Fluidkanal (23) wird in der geöffneten Ventilstellung gebildet durch den rohrartigen Fluideintrittsstutzen (9, 11), den rohrartigenAs has already been described, the control valve (7) is housed inside the fluid housing (5) and is mounted so as to be rotatable about an axis of rotation which is indicated by the reference numeral (R). The control valve (7) according to the exemplary embodiments is a rotary piston. The rotary piston has a central bore (21) which is aligned with respect to a fluid passage (23) defined by the fluid housing (5) in order to permit fluid flow through the control valve (1). In the open valve position, the fluid channel (23) is formed by the tubular fluid inlet connection (9, 11), the tubular
Fluidaustrittsstutzen (11, 9) und die Innenbohrung (21) des Ventilglieds (7). Zwischen dem Ventilglied (7) und der Innenwandung des Fluidgehäuses (5) kann eine oder mehrere Dichtungen (25, 27) angeordnet sein, um die Dichtigkeit in der Schließstellung (5) sicherzustellen. Beispielsweise sind die Dichtungen (25, 27) im Bereich eines Ventilsitzes (29) des Fluidgehäuses (5) angeordnet, der mit dem Ventilglied (7) zum Schließen und insbesondere zum Öffnen des Fluidkanals (23) zusammenwirkt. Fluid outlet connection (11, 9) and the inner bore (21) of the valve member (7). One or more seals (25, 27) can be arranged between the valve member (7) and the inner wall of the fluid housing (5) in order to ensure tightness in the closed position (5). For example, the seals (25, 27) are arranged in the area of a valve seat (29) of the fluid housing (5), which cooperates with the valve member (7) to close and in particular to open the fluid channel (23).
Das Fluidgehäuse (5) umfasst einen sich von den zylindrischen Außenmantelflächen der Fluideintritts- beziehungsweise Fluidaustrittsstutzen (9,11) wegerstreckenden und wenigstens teilweise den Ventilraum (13) begrenzenden Ringflansch (31), auf dem das Antriebsgehäuse (15) sitzt. Beispielsweise ist ein stirnseitiges Ende (33) des Ringflansches (31) mit dem Antriebsgehäuse (15) stoffschlüssig verbunden, insbesondere verschweißt. Das Antriebsgehäuse (15) ist in Richtung des Fluidgehäuses (5) geschlossen. Insbesondere weist das Antriebsgehäuse (15) eine Schalenform auf. Das Fluidgehäuse (5) ist im Bereich des Ringflansches (31) zur Umgebung hin offen, insbesondere in Richtung des Antriebsgehäuses (15) hin offen und durch dieses verschlossen, insbesondere hermetisch abgedichtet. Insofern ist das Fluidgehäuse (5) von dem Antriebsgehäuse (15) hermetisch abgetrennt. Fluid aus dem Fluidgehäuse (5) kann nicht in das Antriebsgehäuse (15) gelangen. The fluid housing (5) comprises an annular flange (31) extending away from the cylindrical outer lateral surfaces of the fluid inlet and fluid outlet connections (9,11) and at least partially delimiting the valve chamber (13), on which the Drive housing (15) is seated. For example, a front end (33) of the annular flange (31) is materially connected to the drive housing (15), in particular welded. The drive housing (15) is closed in the direction of the fluid housing (5). In particular, the drive housing (15) has a shell shape. The fluid housing (5) is open to the environment in the area of the annular flange (31), in particular in the direction of the drive housing (15) and is closed by the latter, in particular hermetically sealed. In this respect, the fluid housing (5) is hermetically separated from the drive housing (15). Fluid from the fluid housing (5) cannot get into the drive housing (15).
Innerhalb des Antriebsgehäuses (15) sind die wesentlichen Komponenten des elektromagnetischen Antriebs (3) aufgenommen, bis auf den Rotor (35), welcher innerhalb des Fluidgehäuses (5) untergebracht ist. In Figur (3) ist zu erkennen, dass der Stator (37), insbesondere bestehend aus Spule (39) und Joch (41), angedeutet in Figur 4, im Wesentlichen senkrecht zur Rotationsachse (R) orientiert ist und den Rotor (35) radial außenliegend umgibt. Der im Fluidbereich angeordnete Rotor (35) ist form- und/oder kraftschlüssig mit dem Ventilglied (7) gekoppelt, um die von dem elektromagnetischen Antrieb (3) generierte Drehantriebskraft dem Ventilglied zum Betätigen desselben mitzuteilen. Die Kraftübertragung zwischen Stator (37) und Rotor (35) erfolgt berührungslos und kontaktfrei, nämlich durch Magnetismus. Desweiteren ist eine Leiterplatte (40) vorgesehen. The essential components of the electromagnetic drive (3) are accommodated within the drive housing (15), apart from the rotor (35), which is accommodated within the fluid housing (5). In Figure (3) it can be seen that the stator (37), in particular consisting of the coil (39) and yoke (41), indicated in Figure 4, is oriented essentially perpendicular to the axis of rotation (R) and the rotor (35) surrounds radially on the outside. The rotor (35) arranged in the fluid area is positively and/or non-positively coupled to the valve member (7) in order to communicate the rotary drive force generated by the electromagnetic drive (3) to the valve member for actuating the same. The power transmission between the stator (37) and the rotor (35) takes place without contact and without contact, namely by magnetism. A printed circuit board (40) is also provided.
Die drehbewegliche Lagerung des Drehkolben-Ventilglieds (7) ist ebenfalls in Figur 3 ersichtlich. Über Rotationslager (41, 43), durch die die Rotationsachse (R) verläuft, ist die drehbewegliche Lagerung realisiert. Vorteilhaft an der Ausführung gemäß Figur 3 ist, dass sich die Radiallager (41, 43) im Fluidbereich befinden, das heißt, zumindest im geöffneten Ventilgliedzustand von der Fluidströmung umströmt beziehungsweise umspült sind. Dies bringt eine zuverlässige, insbesondere permanente, Schmierung der Lagerungen (41 ,43) mit sich. The rotatable mounting of the rotary piston valve member (7) can also be seen in FIG. The rotatable mounting is realized via rotary bearings (41, 43), through which the axis of rotation (R) runs. The advantage of the embodiment according to FIG. 3 is that the radial bearings (41, 43) are located in the fluid area, that is, at least in the open valve member state, the fluid flows or flows around them. This entails reliable, in particular permanent, lubrication of the bearings (41, 43).
In Figur 3 sind die Lagerungen (41, 43) durch Zapfen-Vertiefungs-Eingriffstrukturen realisiert. Die Lagerung (41) des Ventilglieds (7) an dem Ventilgehäuse (5) erfolgt über einen ventilgliedseitigen Lagerungszapfen (45), welcher in eine fluidgehäuseseitige Lagerungsvertiefung eingreift. Die antriebsgehäuseseitige Lagerung (43) ist über antriebsgehäuseseitigen Lagerungszapfen (49) realisiert, welcher in eine ventilgliedseitige Lagerungsvertiefung (51) eingreift. Es hat sich erfindungsgemäß herausgestellt, dass selbst bei der hermetischen Abtrennung von Rotor (35) und Stator (37) eine zuverlässige Kraftübertragung zwischen dem elektromagnetischen Stellantrieb (3) und dem zu betätigenden Stellventil (7) erfolgt. Der konstruktive Aufbau ist dadurch deutlich vereinfacht, das Stellventil (1) kann deutlich kompakter hergestellt werden und es kann auf zusätzliche Abdichtmaßnahmen verzichtet werden. Ein weiterer Vorteil besteht darin, dass ein deutlich effizienteres und kostengünstigeres Stellventil (1) geschaffen werden kann. Es kann auf kostengünstigere und/oder leistungsärmere elektromagnetische Stellantriebe (3) zurückgegriffen werden. In FIG. 3, the bearings (41, 43) are realized by peg-recess engagement structures. The bearing (41) of the valve member (7) on the valve housing (5) takes place via a bearing pin (45) on the valve member side, which engages in a bearing recess on the fluid housing side. The bearing (43) on the drive housing side is realized via the bearing pin (49) on the drive housing side, which is divided into a valve member-side bearing recess (51) engages. It has been found according to the invention that even when the rotor (35) and stator (37) are hermetically separated, there is reliable power transmission between the electromagnetic actuator (3) and the control valve (7) to be actuated. This significantly simplifies the structural design, the control valve (1) can be made significantly more compact and additional sealing measures can be dispensed with. Another advantage is that a significantly more efficient and less expensive control valve (1) can be created. Less expensive and/or less powerful electromagnetic actuators (3) can be used.
In Figur 4 ist eine weitere Teil-Schnittansicht des Stellventils (1) gezeigt, welche anhand der Linie IV-IV aus Figur 3 erzeugt wurde. Die Schnittansicht gemäß Figur 4 dient im Wesentlichen zur Veranschaulichung des Aufbaus des elektromagnetischen Antriebs (3). In Figur 4 ist zu erkennen, dass der elektromagnetische Antrieb (3) der beispielsweise eine Elektromotor ist, aus drei Stator-Einheiten (37) besteht, die jeweils ein Joch (41) und eine darum gewickelte Spule (39) umfassen. Die Stator-Einheiten (37) sind konzentrisch bezüglich des zentralen Ventilglieds (7) und des mit dem Ventilglied drehfest verbundenen Rotors (35) angeordnet. FIG. 4 shows a further partial sectional view of the control valve (1), which was generated using the line IV-IV from FIG. The sectional view according to FIG. 4 essentially serves to illustrate the structure of the electromagnetic drive (3). It can be seen in FIG. 4 that the electromagnetic drive (3), which is an electric motor, for example, consists of three stator units (37), each of which includes a yoke (41) and a coil (39) wound around it. The stator units (37) are arranged concentrically with respect to the central valve member (7) and the rotor (35) which is non-rotatably connected to the valve member.
In weiteren beispielhaften Ausführungen des erfindungsgemäßen Stellventils (1) gemäß den Figuren 5 bis 8 ist der elektromagnetische Antrieb (3) mit dem Ventilglied (7) über ein Planetengetriebe verbunden, das im Allgemeinen mit der Ziffer (53) angedeutet ist. In der folgenden Beschreibung wird im Wesentlichen ausschließlich auf die sich in Bezug auf die vorhergehenden Ausführungen ergebenden Unterschiede eingegangen.In further exemplary embodiments of the control valve (1) according to the invention as shown in FIGS. 5 to 8, the electromagnetic drive (3) is connected to the valve member (7) via a planetary gear, which is generally indicated by the number (53). In the following description, essentially only the differences that arise in relation to the previous statements will be discussed.
Unter Bezugnahme auf die Figuren 5 und 6 wird ein erstes Ausführungsbeispiel eines erfindungsgemäßen Stellventils (1) mit einem Planetengetriebe (53) zur kraftübertragenden Kopplung zwischen Antrieb (3) und Ventilglied (7) beschrieben. Die von dem Antrieb (3) bereitgestellte Antriebskraft wird über den Rotor (35) dem Planetengetriebe (53) mitgeteilt, dessen Abtriebsverzahnung das Ventilglied (7) antreibt. Gemäß den Figuren 5 und 6 weist die Abtriebsverzahnung ein mittiges Sonnenrad (55), drei um das Sonnenrad (55) umlaufende Planetenräder (57) und einen Außenzahnkranz (59) auf. Dabei kämmen die Planetenräder (57) sowohl mit dem Sonnenrad (55) als auch mit dem Außenzahnkranz (59), der ventilgliedseitig angeordnet ist, insbesondere in das Ventilglied (7) eingebracht oder eingearbeitet ist. Mit anderen Worten kann der Außenzahnkranz (59) aus einem Stück mit dem Ventilglied (7) hergestellt sein. Das Ventilglied (7) umfasst eine sich nach radial außen erstreckende ringförmige Basis (73) und einen daran anschließenden, umlaufenden Ringflansch (71), der im Wesentlichen senkrecht zur Basis (73) orientiert ist und an dessen radialer Innenseite der Außenkranz (59) ausgebildet ist. Die Basis (73) und der Ringflansch (71) sind so ausgebildet, dass der Ringflansch (71) die Planetenräder (53) radial außen umgreifen bzw. einfassen kann, sodass die Planetenräder (53) im Wesentlichen vollständig und umlaufend von dem Ventilglied (7) eingefasst sind. With reference to Figures 5 and 6, a first embodiment of a control valve (1) according to the invention with a planetary gear (53) for force-transmitting coupling between drive (3) and valve member (7) is described. The driving force provided by the drive (3) is communicated via the rotor (35) to the planetary gear (53), whose output toothing drives the valve member (7). According to FIGS. 5 and 6, the output toothing has a central sun wheel (55), three planetary wheels (57) rotating around the sun wheel (55) and an outer ring gear (59). The planet gears (57) mesh both with the sun gear (55) and with the outer ring gear (59), which is arranged on the valve member side, in particular is introduced or incorporated into the valve member (7). In other words, the outer ring gear (59) can be made in one piece with the valve member (7). The valve member (7) comprises an annular base (73) extending radially outwards and an adjoining, circumferential annular flange (71) which is oriented essentially perpendicular to the base (73) and on the radial inside of which the outer ring (59) is formed is. The base (73) and the annular flange (71) are designed in such a way that the annular flange (71) can surround or enclose the planetary gears (53) radially on the outside, so that the planetary gears (53) are essentially completely and circumferentially separated from the valve member (7 ) are bordered.
Zunächst wird die Antriebskraft von dem Rotor (35) auf das Sonnenrad (55) übertragen, welches an einem Lagerungszapfen (61) des Ventilglieds (7) gelagert ist. Der Lagerungszapfen (61) ist im Wesentlichen koaxial zur Rotationsachse R angeordnet. Das angetriebene Sonnenrad (55) treibt die Planetenräder (57) an, die sich am Außenkranz (59) abstützen und das Ventilglied (7) antreiben, d. h. in eine Rotationsbewegung um die Rotationsachse R versetzen. Die Planetenräder (57) sind wiederum über antriebsgehäuseseitige Lagerzapfen (65) drehbar bezüglich des Ventilglieds (7) und des Antriebsgehäuses (15) gelagert. Die antriebsgehäuseseitigen Lagerzapfen (65) erstrecken sich parallel zur Rotationsachse R nach unten in Richtung des Fluidgehäuses (5). Die antriebsgehäuseseitigen Lagerzapfen (65) ragen in je eine in dem Ventilglied (7) ausgebildete Aussparung, die als Lagerung (67) für die Lagerzapfen (65) wirkt. Die Lagerungen (67) führen zusätzlich das Ventilglied (7) relativ zu dem Antriebsgehäuse (15) bei dessen Rotationsbewegung. First, the driving force is transmitted from the rotor (35) to the sun gear (55), which is mounted on a bearing journal (61) of the valve member (7). The bearing journal (61) is arranged essentially coaxially to the axis of rotation R. The driven sun gear (55) drives the planetary gears (57), which are supported on the outer rim (59) and drive the valve member (7), i. H. set in a rotational movement around the axis of rotation R. The planet gears (57) are in turn rotatably mounted with respect to the valve member (7) and the drive housing (15) via bearing journals (65) on the drive housing side. The bearing journals (65) on the drive housing extend downward parallel to the axis of rotation R in the direction of the fluid housing (5). The bearing journals (65) on the drive housing each project into a recess formed in the valve member (7), which acts as a bearing (67) for the bearing journals (65). The bearings (67) also guide the valve member (7) relative to the drive housing (15) during its rotational movement.
Die Ausführungsformen der Figuren 7 und 8 bzw. 9 und 10 unterscheiden sich von der Ausführungsform der Figuren 5 und 6 durch die Abtriebsverzahnung. Ein Unterschied besteht darin, dass die Planetenräder (57) bezüglich ventilgliedseitigen Lagerzapfen (63) drehbar gelagert sind, die im Wesentlichen parallel zur Rotationsachse R orientiert sind. Das Antriebsgehäuse (15) der Ausführungen der Figuren 7 und 8 bzw. 9 und 10 weist somit keine antriebsgehäuseseitigen Lagerzapfen (65) auf. The embodiments of FIGS. 7 and 8 or 9 and 10 differ from the embodiment of FIGS. 5 and 6 in the output toothing. One difference is that the planet gears (57) are rotatably mounted with respect to the bearing journals (63) on the valve member side, which are oriented essentially parallel to the axis of rotation R. The drive housing (15) of the embodiments of FIGS. 7 and 8 or 9 and 10 therefore has no bearing journals (65) on the drive housing side.
Daraus ergibt sich ein weiterer Unterschied bezüglich der Struktur des Ventilglieds (7). Die ringförmige Basis (73) des Ventilglieds (7) gemäß den Figuren 7 bis 10 ist in Radialrichtung kleiner bemessen als die Basis (73) des Ventilglieds (7) gemäß Figur 5. Ferner umfasst das Ventilglied (7) der Figuren 7 bis 10 keinen Ringflansch (71), welcher die Abtriebsverzahnung aufweist. In Figur 7 ist zu erkennen, dass das Antriebsgehäuse (15) einen sich parallel zur Rotationsachse R in Richtung des Fluidgehäuses (5) erstreckenden Verzahnungsflansch (77) umfasst, an welchem radial innenseitig die Abtriebsverzahnung ausgebildet ist. Mittels des Verzahnungsflansches (77) kann das Antriebsgehäuse (15) teleskopartig in das Fluidgehäuse (5) eingesetzt bzw. eingeschoben sein. Beispielsweise kann die Montage unter Ausbildung einer Presspassung zwischen Antriebsgehäuse (15) und Fluidgehäuse (5) erfolgen. This results in another difference in the structure of the valve member (7). The annular base (73) of the valve member (7) according to Figures 7 to 10 is dimensioned smaller in the radial direction than the base (73) of the valve member (7) according to Figure 5. Furthermore, the valve member (7) of Figures 7 to 10 does not include one Ring flange (71) which has the output gearing. In FIG. 7 it can be seen that the drive housing (15) comprises a toothed flange (77) which extends parallel to the axis of rotation R in the direction of the fluid housing (5) and on which the output toothing is formed radially on the inside. The drive housing (15) can be inserted or pushed telescopically into the fluid housing (5) by means of the toothed flange (77). For example, assembly can take place with the formation of a press fit between the drive housing (15) and the fluid housing (5).
In den Figuren 9 und 10 ist der Außenkranz (59) Teil des Fluidgehäuses (5). Der Ringflansch (31) mündet in einen Befestigungsflansch (75), der an seiner radialen Innenseite den Außenkranz (59) zur Bildung der Abtriebsverzahnung mit den Planetenrädern (53) umfasst. Im Unterschied zur Ausführungsform der Figuren 7 und 8 wird das Antriebsgehäuse (15) nicht teleskopartig in das Fluidgehäuse (5) eingeschoben bzw. eingesetzt, sondern, im Wesentlichen analog zur Ausführung gemäß Figur 3, auf ein stirnseitiges Ende (33) des Ringflansches (31) bzw. des Befestigungsflansches (75) aufgesetzt. In Figures 9 and 10, the outer ring (59) is part of the fluid housing (5). The annular flange (31) opens into a fastening flange (75) which, on its radial inner side, encloses the outer rim (59) to form the output toothing with the planet gears (53). In contrast to the embodiment of Figures 7 and 8, the drive housing (15) is not pushed or inserted telescopically into the fluid housing (5), but, essentially analogously to the embodiment according to Figure 3, on a front end (33) of the annular flange (31 ) or the mounting flange (75).
In den Figuren 9 und 10 ist ferner zu erkennen, dass eine im Wesentlichen als ebene Platte ausgebildete Abdeckung (69) dazu ist, die Position der Planetenräder (57) im Planetengetriebe (53) zu fixieren. Dabei kann der Außenkranz (59) abdeckungsseitig (nicht dargestellt) oder fluidgehäuseseitig (Figur 9 und 10) angeordnet sein, nämlich an einer Innenwand des Fluidgehäuses (5) eingebracht sein. Mit anderen Worten kann der Außenzahnkranz (59) aus einem Stück mit dem Fluidgehäuse (5) hergestellt sein. It can also be seen in FIGS. 9 and 10 that a cover (69) designed essentially as a flat plate is used to fix the position of the planet gears (57) in the planetary gear (53). The outer rim (59) can be arranged on the cover side (not shown) or on the fluid housing side (FIGS. 9 and 10), namely on an inner wall of the fluid housing (5). In other words, the outer ring gear (59) can be made in one piece with the fluid housing (5).
In den beispielhaften Ausführungen der Figuren 5 bis 10 sind Fluidgehäuse (5) und Antriebsgehäuse (15) sowie Antriebsgehäuse (15) und Deckel (17) jeweils mittels Laserschweißen aneinander befestigt. Der im Wesentlichen ebene Deckel (17) kann bezüglich seiner Dimension quer zur Rotationsachse R an eine Abmessung des Antriebsgehäuses (15) angepasst sein, insbesondere derart, dass der Deckel (17) bündig an das Antriebsgehäuse (15) anschließt. Zum Verschweißen mit dem Antriebsgehäuse (15) weist der Deckel (17) einen umlaufenden Schweißflansch (79) auf, der an einer Innenseite (81) des Antriebsgehäuses (15) anliegt und mit diesem verschweißt wird. Das radial innere Bauteil, hier das Antriebsgehäuse (15), ist aus einem laserabsorbierenden Werkstoff, insbesondere Kunststoffmaterial, hergestellt, während das radial äußere Bauteil, hier der Deckel (17), aus einem lasertransparenten Werkstoff, insbesondere Kunststoffmaterial, hergestellt ist. In the exemplary embodiments of FIGS. 5 to 10, the fluid housing (5) and drive housing (15) as well as the drive housing (15) and cover (17) are fastened to one another by means of laser welding. The substantially flat cover (17) can be adapted to a dimension of the drive housing (15) in terms of its dimension transverse to the axis of rotation R, in particular such that the cover (17) is flush with the drive housing (15). For welding to the drive housing (15), the cover (17) has a peripheral welding flange (79) which bears against an inside (81) of the drive housing (15) and is welded to it. The radially inner component, here the drive housing (15) is made of a laser-absorbing material, in particular plastic material, while the radially outer component, here the cover (17), is made of a laser-transparent material, in particular a plastic material.
Ferner sind auch Fluidgehäuse und Antriebsgehäuse mittels Laserschweißen aneinander befestigt, wobei erneut das radial innere Bauteil, nämlich das Fluidgehäuse (5), aus einem laserabsorbierenden Werkstoff, insbesondere Kunststoffmaterial, hergestellt ist, während das radial äußere Bauteil, nämlich das Antriebsgehäuse (15), aus einem lasertransparenten Werkstoff, insbesondere Kunststoffmaterial, hergestellt ist. Um die Verschweißung von Fluidgehäuse (5) und Antriebsgehäuse (15) zu ermöglichen, weist das Antriebsgehäuse (15) einen radial außenseitig in Bezug auf das Fluidgehäuse (5) zu positionierenden Schweißflansch (83) auf und das Fluidgehäuse (5) einen in Bezug auf den Schweißflansch (83) radial innenseitig zu positionierenden Schweißflansch (85). Furthermore, the fluid housing and drive housing are also attached to one another by means of laser welding, with the radially inner component, namely the fluid housing (5), being made from a laser-absorbing material, in particular plastic material, while the radially outer component, namely the drive housing (15), is made from a laser-transparent material, in particular a plastic material. In order to enable the fluid housing (5) and drive housing (15) to be welded, the drive housing (15) has a welding flange (83) to be positioned radially on the outside in relation to the fluid housing (5), and the fluid housing (5) has a welding flange (83) with respect to the welding flange (83) to be positioned radially on the inside.
Die in der vorstehenden Beschreibung, den Figuren und den Ansprüchen offenbarten Merkmale können sowohl einzeln als auch in beliebiger Kombination für die Realisierung der Erfindung in den verschiedenen Ausgestaltungen von Bedeutung sein. The features disclosed in the above description, the figures and the claims can be important both individually and in any combination for the implementation of the invention in the various configurations.
BEZUGSZEICHENLISTE i Stellventil REFERENCE NUMBER LIST i Control Valve
3 Elektromagnetischer Antrieb 3 Electromagnetic drive
5 Fluidgehäuse 5 Fluid Housing
7 Ventilglied 7 valve member
9,n Fluideintritts- beziehungsweise Fluidaustrittsstutzen9,n fluid inlet or fluid outlet nozzle
13 Ventilraum 13 valve space
15 Antriebsgehäuse 15 drive housing
17 Deckel 17 cover
19 elektrischer Anschlussstelle 19 electrical connection point
21 Fluidbohrung 21 fluid bore
23 Fluidkanal 23 fluid channel
25, 27 Dichtung 25, 27 seal
29 Ventilsitz 29 valve seat
31 Ringflansch 31 annular flange
33 stirnseitiges Ende 33 front end
35 Rotor 35 rotors
37 Stator 37 stator
39 Spule 39 coil
42 Joch 42 yoke
40 Leiterplatte 40 circuit board
41, 43 Lagerung 41, 43 storage
45, 49 Lagerungszapfen 45, 49 bearing pins
47, 51 Lagerungsvertiefung 47, 51 storage indentation
53 Planetengetriebe 53 planetary gears
55 Sonnenrad 55 sun gear
57 Planetenrad 57 planet wheel
59 Außenkranz 59 outer wreath
61 ventilgliedseitiger Lagerungszapfen 61 valve member side bearing journal
63 ventilgliedseitiger Lagerzapfen 63 valve member side bearing journal
65 antriebsgehäuseseitiger Lagerzapfen 65 drive housing side bearing journal
67 ventilgliedseitige Lagerung 67 bearing on the valve member side
69 Abdeckung 69 cover
71 Ringflansch 71 ring flange
73 Basis 75 Befestigungsflansch 73 base 75 mounting flange
77 Verzahnungsflansch 77 spline flange
79 Schweißflansch des Deckels 79 Welding flange of the cover
81 Innenseite 81 inside
83, 85 Schweißflansch von Antriebsgehäuse und Fluidgehäuse 83, 85 Welding flange of drive housing and fluid housing
A Längsachse A longitudinal axis
R Rotationsstellachse R rotation adjustment axis

Claims

ANSPRÜCHE EXPECTATIONS
1. Stellventil (1), insbesondere Fluidventil, zum Einstellen einer Fluidströmung insbesondere eines Kraftfahrzeugs, umfassend: 1. Control valve (1), in particular a fluid valve, for adjusting a fluid flow, in particular in a motor vehicle, comprising:
- ein Fluid führendes Fluidgehäuse (5); - A fluid-carrying fluid housing (5);
- ein stellbares Ventilglied (7), das zum Schließen und wenigstens teilweise Freigeben des Fluidgehäuses um eine Rotationsstellachse (R) rotierbar ist; und - an adjustable valve member (7) which is rotatable about a rotational adjustment axis (R) for closing and at least partially releasing the fluid housing; and
- einen elektromagnetischen Antrieb (3) mit einem mit dem Ventilglied (7) form- und/oder kraftschlüssig gekoppelten Rotor (35) und einem dem Rotor (35) zugeordneten Stator, wobei der Stator (37) in einem Antriebsgehäuse (15) untergebracht ist, das von dem Fluidgehäuse (5) hermetisch getrennt ist. - An electromagnetic drive (3) with a rotor (35) positively and/or non-positively coupled to the valve member (7) and a stator associated with the rotor (35), the stator (37) being accommodated in a drive housing (15). , which is hermetically separated from the fluid housing (5).
2. Stellventil (1), insbesondere nach A, insbesondere Fluidventil, zum Einstellen einer Fluidströmung insbesondere eines Kraftfahrzeugs, umfassend: 2. Control valve (1), in particular according to A, in particular fluid valve, for adjusting a fluid flow, in particular in a motor vehicle, comprising:
- ein Fluid führendes Fluidgehäuse (5); - A fluid-carrying fluid housing (5);
- ein Ventilglied (7), das zum Schließen und wenigstens teilweise Freigeben des Fluidgehäuses stellbar ist; und - a valve member (7) which is adjustable for closing and at least partially releasing the fluid housing; and
- einen elektromagnetischen Antrieb (3) mit einem mit dem Ventilglied (7) form- und/oder kraftschlüssig gekoppelten und von dem Antrieb (3) betätigten Rotor, der derart in dem Fluidgehäuse (5) angeordnet ist, dass zumindest im geöffneten Zustand des Ventilglieds der Rotor (35) von der Fluidströmung umströmt ist. - An electromagnetic drive (3) with a rotor which is positively and/or non-positively coupled to the valve member (7) and actuated by the drive (3), which rotor is arranged in the fluid housing (5) in such a way that at least in the open state of the valve member the fluid flow flows around the rotor (35).
3. Stellventil (1) nach einem der vorstehenden Ansprüche, wobei der Rotor (35) drehfest mit dem Ventilglied (7) gekoppelt ist und/oder wobei das Ventilglied (7) zum Stellen um eine Rotationsstellachse (R) rotierbar ist. 3. Control valve (1) according to one of the preceding claims, wherein the rotor (35) is rotatably coupled to the valve member (7) and / or wherein the valve member (7) is rotatable about a rotational control axis (R) for setting.
4. Stellventil (1) nach einem der vorstehenden Ansprüche, wobei das Ventilglied (7) bezüglich des Antriebsgehäuses und des Fluidgehäuses rotatorisch gelagert ist, wobei insbesondere das Ventilglied (7) über je eine Lagerung, insbesondere ein Rotationslager, an dem Antriebsgehäuse (15) und dem Fluidgehäuse (5) gelagert ist. Stellventil (1) nach Anspruch 4, wobei die Lagerungen derart insbesondere in dem Fluidgehäuse (5) angeordnet sind, dass sie permanent von Fluid umströmt sind. Stellventil (1) nach einem der vorstehenden Ansprüche, wobei der Rotor und ein Stator (37) des elektromagnetischen Antriebs und ggf. eine Lagerung zum Lagern des Ventilglieds an dem Antriebsgehäuse (15) in Bezug auf die Rotationsstellachse (R) auf gleicher Höhe angeordnet sind. Stellventil (1) nach einem der vorstehenden Ansprüche, wobei das Fluidgehäuse (5) und das Antriebsgehäuse (15) stoffschlüssig miteinander verbunden sind. Stellventil (1) nach einem der vorstehenden Ansprüche, wobei das Fluidgehäuse (5) und das Antriebsgehäuse (15) frei von einer das Fluidgehäuse (5) und das Antriebsgehäuse (15) verbindenden Durchführung insbesondere für eine die Antriebskraft des Antriebs auf das Ventilglied (7) übertragende Kraftübertragungskomponente, wie eine Stellstange, sind. Stellventil (1) nach einem der vorstehenden Ansprüche, wobei das Antriebsgehäuse (15) insbesondere stoffschlüssig mit einem Deckel verschlossen ist, wobei insbesondere der Deckel eine elektrische Anschlussstelle, wie einen elektrischen Gerätestecker, aufweist. Stellventil (1) nach einem der vorstehenden Ansprüche, wobei der Antrieb (3) mit dem Ventilglied (7) über ein Planetengetriebe kraftübertragend gekoppelt ist. Stellventil (1) nach Anspruch 10, wobei das Planetengetriebe derart insbesondere in dem Fluidgehäuse (5) angeordnet ist, dass es permanent von Fluid umströmt ist. Stellventil (1) nach Anspruch 10 oder 11, wobei das Planetengetriebe Planetenräder aufweist, die drehbar an dem Ventilglied (7) oder dem Antriebsgehäuse (15) gelagert sind und zum Bewegen des Ventilglieds (7) mit einem an dem Ventilglied (7), dem Fluidgehäuse (5) oder dem Antriebsgehäuse (15) angeordneten Außenzahnkranz Zusammenwirken, wobei insbesondere der Außenzahnkranz in das Ventilglied (7), das Fluidgehäuse (5) oder das Antriebsgehäuse (15) eingebracht ist. Leitungssystem für ein Kraftfahrzeug, insbesondere zum Kühlen eines Motors oder zum Bereitstellen eines Anoden- und/oder Kathodenstroms in einer4. Control valve (1) according to any one of the preceding claims, wherein the valve member (7) is rotatably mounted with respect to the drive housing and the fluid housing is, in particular the valve member (7) via a respective bearing, in particular a rotary bearing, on the drive housing (15) and the fluid housing (5) is mounted. Control valve (1) according to Claim 4, in which the bearings are arranged in particular in the fluid housing (5) in such a way that fluid flows permanently around them. Control valve (1) according to one of the preceding claims, wherein the rotor and a stator (37) of the electromagnetic drive and, if necessary, a bearing for mounting the valve member on the drive housing (15) are arranged at the same height in relation to the rotational control axis (R). . Control valve (1) according to one of the preceding claims, wherein the fluid housing (5) and the drive housing (15) are materially connected to one another. Control valve (1) according to one of the preceding claims, wherein the fluid housing (5) and the drive housing (15) are free of a passage connecting the fluid housing (5) and the drive housing (15), in particular for a driving force of the drive on the valve member (7 ) transmitting power transmission component, such as an adjusting rod. Control valve (1) according to one of the preceding claims, wherein the drive housing (15) is in particular materially closed with a cover, the cover in particular having an electrical connection point, such as an electrical appliance plug. Control valve (1) according to one of the preceding claims, in which the drive (3) is coupled to the valve member (7) in a force-transmitting manner via a planetary gear. Control valve (1) according to claim 10, wherein the planetary gear is arranged in particular in the fluid housing (5) in such a way that fluid flows permanently around it. Control valve (1) according to claim 10 or 11, wherein the planetary gear has planetary gears which are rotatably mounted on the valve member (7) or the drive housing (15) and for moving the valve member (7) with a valve member (7), the Fluid housing (5) or the drive housing (15) arranged external toothed ring interact, in particular the external toothed ring in the valve member (7), the fluid housing (5) or the drive housing (15) is introduced. Line system for a motor vehicle, in particular for cooling an engine or for providing an anode and/or cathode current in a
Brennstoffzelle, umfassend ein Stellventil (1) nach einem der vorstehenden Ansprüche. Fuel cell, comprising a control valve (1) according to any one of the preceding claims.
PCT/EP2021/070887 2020-08-28 2021-07-26 Control valve and line system WO2022042974A1 (en)

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DE102020122602.0 2020-08-28
DE102020122602 2020-08-28
DE102021103590.2A DE102021103590A1 (en) 2020-08-28 2021-02-16 Control valve and piping system
DE102021103590.2 2021-02-16

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Publication number Priority date Publication date Assignee Title
WO2020207574A1 (en) * 2019-04-10 2020-10-15 Pierburg Gmbh Rotary slide valve for a motor vehicle
DE102022111976A1 (en) 2022-05-12 2023-11-16 Woco Industrietechnik Gmbh Control valve and pipe system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2428645Y (en) * 2000-01-08 2001-05-02 胡彬 Rotary conic-core pulse electromagnetic valve
WO2018137952A1 (en) * 2017-01-24 2018-08-02 Pierburg Gmbh Rotary slide valve
WO2020134613A1 (en) * 2018-12-24 2020-07-02 浙江三花汽车零部件有限公司 Ball valve

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2996900B1 (en) 2012-10-16 2015-08-07 Sonceboz Sa VALVE HAVING POLYPHASE LINEAR ACTUATOR FOR HIGH PRESSURE DOSING

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2428645Y (en) * 2000-01-08 2001-05-02 胡彬 Rotary conic-core pulse electromagnetic valve
WO2018137952A1 (en) * 2017-01-24 2018-08-02 Pierburg Gmbh Rotary slide valve
WO2020134613A1 (en) * 2018-12-24 2020-07-02 浙江三花汽车零部件有限公司 Ball valve

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