DE102021000262A9 - mass flow control device - Google Patents

Abstract

In a mass flow control device (1) for controlling mass flows in a medium distribution system, comprising at least one housing with at least one housing part (2, 2a, 2b), at least one actuator (3, 4), at least one within the at least one housing part (2, 2a , 2b) rotatable or arranged valve element (7, 8, 9, 10, 307, 308, 309, 310) and at least two flow passages (235, 236, 237, 238, 239, 245, 246, 247, 248), from at least one of which serves to flow medium into the mass flow control device (1) and at least one to flow the medium out of it, the at least one actuator (3, 4) being connected to the at least one valve element (7, 8, 9, 10, 307, 308, 309, 310) can be coupled or is coupled for rotary position adjustment of the valve element (7, 8, 9, 10, 307, 308, 309, 310), the housing or the at least one housing part (2, 2a, 2b) is in direction provided with at least one collecting line (23) along its length, which is provided with at least one of the flow passages (235, 236, 237, 238, 239, 245, 246, 247, 248) or is flow-connectable or connected, wherein the at least one collecting line (23) has at least one transfer contour (26) in the direction of the has at least one valve element (7, 8, 9, 10, 307, 308, 309, 310), and the at least one valve element (7, 8, 9, 10, 307, 308, 309, 310) has at least one flow contour on the outside (71, 81, 91, 101, 381) and provided with at least one control contour (72, 82, 92, 102, 380) that can be flow-connected or is connected thereto, wherein the flow contour (71, 81, 91, 101, 381) on the outside can be or is in flow connection with one of the flow passages (235, 236, 237, 238, 239, 245, 246, 247, 248) and wherein the at least one control contour (72, 82, 92, 102, 380) of the at least one valve element (7, 8, 9, 10, 307, 308, 309, 310) can be or is in flow connection with the at least one transfer contour (26). t.

Description

The invention relates to a mass flow control device for controlling mass flows in a medium distribution system, comprising at least one housing with at least one housing part, at least one actuator, at least one valve element which can be arranged or is arranged rotatably within the at least one housing part and at least two flow passages, at least one of which is intended for the inflow of Medium is used in the mass flow control device and at least one for the outflow of the medium from this, wherein the at least one actuator can be coupled to the at least one valve element or is coupled to rotate the position of the valve element.

Mass flow control devices are known in the prior art in a wide variety of configurations. These are used to control mass flows, for example in cooling circuits or heating circuits, for example in vehicles. For example, the DE 10 2015 201 246 A1 such a control means for controlling coolant flows of a split cooling system of an internal combustion engine with a housing having at least two inlets and three outlets. A rotating body is rotatably mounted in the housing and is rotatable between a plurality of control positions and has at least one opening on the circumference and/or through the opening. The exits are arranged in different orientations around the rotating body. The rotary body is arranged in a sealed manner within a chamber of the housing such that a coolant flow entering the housing can at least partially exit through one of the outlets or is blocked from exiting, depending on the respective control position of the rotary body. The exits are arranged in a common plane around the longitudinal axis of the rotary body. In the associated control position, the rotating body is designed to jointly direct coolant streams entering through the inputs to one of the outputs and to block the respective other output at the same time. The two chambers of the housing each have a spherical shape, both chambers merging into one another and the rotary body being arranged in these chambers. The rotary body is designed as a hollow body, the wall of which has a plurality of openings in the form of through-openings.

The present invention is now based on the object of providing an improved mass flow control device compared to the prior art for controlling mass flows in a medium distribution system, in particular in a fluid system with a number of fluid circuits, such as at least one cooling circuit and/or at least one heating circuit, for example in a thermal management system in a vehicle, to be provided in which a number of different medium circuits, such as fluid circuits, can be connected to one another in order to control and distribute the medium flow or fluid flow in the fluid system in a manner desired in an application-specific manner. Different switching states with regard to the medium or fluid flowing into the mass flow control device and the medium or fluid flowing out of it should be made possible by the mass flow control device, in particular a separation and coupling of different fluid circuits.

The object is achieved for a mass flow control device for controlling mass flows in a medium distribution system, such as in fluid circuits, in particular in a cooling and/or heating circuit, according to the preamble of claim 1 in that the housing or the at least one housing part extends in the direction of its longitudinal extent is provided with at least one collecting line, which is provided with at least one of the flow passages or is or is flow-connectable, wherein the at least one collecting line has at least one transfer contour in the direction of the at least one valve element, and that the at least one valve element has at least one flow contour on the outside and with at least one is provided with this flow-connectable or -connected control contour, wherein the outside flow contour can be brought into flow connection with one of the flow passages and wherein the at least one control contour of the at least one Ven tilelements can be or is in flow connection with the at least one transfer contour. Further developments of the invention are defined in the dependent claims.

This provides a mass flow control device for controlling mass flows in a medium distribution system, such as a fluid system, in particular in a cooling circuit and/or in a heating circuit, e.g. of a vehicle, which has a housing with at least one housing part, at least one actuator, at least one within the at least a housing part which is or can be arranged rotatably and comprises at least two flow passages for medium for medium to flow into the mass flow control device and for medium to flow out of it. The at least one actuator of the mass flow control device can be or will be coupled to the at least one valve element in order to adjust its position by rotation, the at least one valve element being located within the housing or the at least one housing part is arranged. The actuator can be connected to the at least one valve element, for example, by a drive shaft arranged on the valve element. This is engaged or engageable by the actuator to rotationally drive the valve member. On its outer circumference, the valve element has one or at least one external flow contour, in particular a groove. This can be provided all the way around the valve element or only over a partial area of the outer lateral surface of the valve element. The outside flow contour of the valve element serves to receive medium that flows into the mass flow control device through a flow passage or out of it through the flow passage, and to convey it through the control contour of the valve element to the at least one transfer contour to the at least one collecting line. The valve element therefore has on its outside, ie in its jacket region, at least one control contour which is or can be brought into flow connection with the flow contour on the outside. The at least one valve element is arranged within the at least one housing part in such a way that the flow contour on the outside is brought or is in flow connection with the at least one flow passage. Thus, a medium flowing through the flow passage can flow into the flow contour on the outside and from there into the control contour of the valve element. By rotating the valve element, its control contour can be brought into flow connection with at least one transfer contour for overflowing the medium into at least one of the collecting lines. The reverse flow path is also possible from the collecting line through the at least one transfer contour into the at least one control contour of the at least one valve element, from this into the flow contour on the outside and from this into the at least one further flow passage, in order to transport the medium through this then out of the mass flow control device again to let flow out. The flow directions of the flowing medium can be the same or different in the individual flow passages and in each of the valve elements of the mass flow control device, so that the flow passages can be used both for the inflow of medium into the mass flow control device and for the outflow of medium from it. The direction of flow can thus be varied from valve element to valve element and from flow passage to flow passage, depending on the application or use of the mass flow control device.

The housing of the mass flow control device can consist of one or more housing parts that are separate in the axial direction or can be connected or connected to one another, in particular three housing parts that are or are tightly connected to one another with positive or material locking. The housing can thus be constructed in a modular manner. If only one housing part is mentioned below, this includes both the configuration as a housing made up of only one housing part and a housing composed of several housing parts.

The housing or the at least one housing part has one or more collecting lines in the direction of its longitudinal extension. These are provided with or flow-connected to at least one of the flow passages of the housing or housing part or can be flow-connected thereto. In the direction of the interior of the housing or its at least one housing part, the at least one collecting line has the at least one transfer contour, which is in flow connection with the interior of the housing or housing part. The at least one valve element is arranged in this. After the valve element has been arranged, the at least one transfer contour is positioned in the interior of the housing or the at least one housing part such that it can be brought into flow connection when the valve element is rotated with its control contour arranged on the outside. This makes it possible for medium to get, for example, from the control contour of the valve element via the transfer contour of the housing or housing part into the at least one collecting line and from there into at least one flow passage through which it can exit from the mass flow control device, which in turn is in flow connection with the inside the manifold. Of course, the flow path can also be provided in the opposite direction, i.e. initially an inflow of medium through at least one flow passage into at least one collecting line and from there through at least one transfer contour into the at least one control contour of at least one of the valve elements, from there into its external flow contour and from there through at least one flow passage out of the housing or the at least one housing part of this back out of the mass flow control device.

The at least one transfer contour can be formed, for example, as a through-opening in an outer wall of the housing or of the at least one housing part on which the at least one collecting line is arranged. The at least one collecting line of the housing part can, for example, be at least one in the longitudinal direction of the be at least one housing part extending axial channel. In particular, at least one connecting piece, which is flow-connected to the flow passage of the axial channel, can be arranged so as to project radially outwards. The at least one collecting line can be an integral part of the housing or of the at least one housing part. It is therefore not arranged as a separate pipeline on the outside of the housing or the at least one housing part of the mass flow control device, but is integrated into this/these. A unit consisting of the at least one housing part and the at least one collecting line is therefore advantageously provided. This makes it possible in particular to create a compact unit and to couple valve elements driven separately from one another by different actuators via the collecting line(s) with respect to the medium flow flowing out of or into them. When two actuators are provided, for example, the flow outlets of at least two valve elements that can be controlled separately by the two actuators can be flow-connected to one another via the at least one collecting line.

The at least one valve element can have an essentially cylindrical valve body which is provided on the outside with the outside flow contour, in particular a groove, and with the control contour which is in flow communication with it. On the one hand, the control contour can, for example, flow-connect two transfer contours and thus the collecting lines and flow passages that are flow-connected to them for the inflow or outflow of medium into/from the mass flow control device. On the other hand, the control contour can increase the switching possibilities when a freewheel is provided between two or more valve elements that are coupled to one another by appropriate design of the control contour. The latter can for example be provided with at least one wider section and at least one narrower section, e.g. essentially T-shaped, double T-shaped, Y-shaped, triangular, pear-shaped or in another shape. By providing the wider section, the flow connection of at least two transfer contours is possible on the one hand, and on the other hand a longitudinal extent of the control contour required for freewheeling between two valve elements can be created according to the rotational angle range of one valve element relative to the other. If the control contour is essentially T-shaped, for example, it has two relatively short sub-channels that are approximately perpendicular to one another, a bar-shaped channel and a transverse channel. The bar-shaped channel serves to connect the transverse channel, which is arranged approximately parallel to the outside flow contour, in particular the circumferential groove, with the latter, the transverse channel forming the said T-shape with the bar-shaped channel. Also, as already mentioned, other shapes are possible, such as a Y-shape, where also the wider section is the upper V-shaped part of the "Y" and the narrower section is the lower part of the "Y".

The flow contour on the outside can be arranged in the region of one end of the valve element. It is also possible for the outside flow contour to be arranged approximately in the middle on the outside of the valve element and for the control contours to extend on both sides, in flow connection with the outside flow contour arranged in between. The flow contour on the outside and the at least one control contour can therefore form a double T-shape, for example, with T-shaped control contours adjoining the outside flow contour on both sides. Furthermore, it is possible for several control contours to be or are arranged one behind the other or next to one another on the outside of the valve element, possibly also offset from one another over the circumference. When rotating the valve element relative to the housing part, a flow connection between the outside flow contour or groove and the flow passage for the medium can always be established. The at least one control contour of a respective valve element is purposefully brought into overlap with the at least one transfer contour or e.g. the transfer contours of two adjacent collecting lines by rotating the valve element within the housing part. Accordingly, the valve element can be brought into flow connection with its at least one control contour by rotating the valve element within the housing or the at least one housing part with the various transfer contours of the various collecting lines of the housing in order to prevent the passage of medium through the mass flow control device via the valve elements and the collecting line (en) to be able to control them in a targeted manner. In this way, a number of different medium circuits, such as fluid circuits, can be connected to one another in order to control and distribute the medium flow or fluid flow in the fluid system in a manner that is desired in an application-specific manner. Different switching states with regard to the medium flowing into the mass flow control device, such as fluid, and the medium or fluid flowing out of it can be made possible by the mass flow control device, in particular separating and coupling different medium or fluid circuits.

The transfer contours are advantageous in the longitudinal direction of the housing part in the respective Level of at least one control contour of the respective valve element, which is arranged within the housing part, arranged, for example as a through-opening in a housing wall of the housing surrounding the valve elements. The at least one flow contour on the outside of the respective valve element is accordingly advantageously arranged in the plane of a respective flow passage on the housing part, in particular the connecting piece for the flow inlet into the housing part. The flow passage can be formed in the at least one housing part as an opening which is or will be provided with a connecting piece, via which a line can be connected to the housing part, for example. The same applies to the connection pieces with which the flow passages can be provided, through which the medium can flow out of the mass flow control device.

Also advantageously, some of the flow passages are distributed over the circumference of the housing part. This can be a regular or irregular distribution. In particular, the flow passages are distributed in one plane over the circumference of the housing or the at least one housing part. For example, five flow passages distributed over the circumference of the housing part can be arranged in one plane. Lines such as hose lines or pipelines, which are part of a medium distribution system, such as a number of fluid circuits, e.g.

At least two flow passages can be arranged in a row adjacent to one another in the longitudinal or axial direction of the housing or of the at least one housing part. Accordingly, it is possible for the at least two flow passages or connecting pieces assigned to them to be arranged adjacent to one another in a row in the axial direction of the housing part. For example, two to four or even more flow passages can be arranged adjacent to one another in the axial direction of the housing part on the outside thereof. The four flow inlets, for example, can then be flow-connected to the above-mentioned five flow passages, which are distributed over the circumference of the housing, in particular in one plane, by appropriately adjusting the valve elements inside the housing part. A wide variety of switching positions for the flow connection of the flow passages for the inflow of medium and the outflow of medium are possible. Each of the flow passages is advantageously assigned a valve element or an external flow contour of the respective valve element. With four flow passages arranged in a row, for example four valve elements can be arranged inside the housing or at least one housing part of the mass flow control device, with two flow passages for example two valve elements.

In order to seal the individual valve elements from one another, it has proven to be advantageous to provide at least one sealing device on and/or between two valve elements in each case, with the at least one sealing device being used on the one hand to seal the valve elements from one another and on the other hand to seal the valve elements from the housing or the at least a housing part and/or in relation to the at least one transfer contour in this, it being possible for the valve elements to rotate within the housing or the at least one housing part. At least one sealing device is thus provided, which on the one hand allows sealing, but on the other hand still allows the valve elements to rotate within the housing or housing part. For example, protruding sealing rings can be provided on the outside end of the valve elements, which enclose at least one outside flow contour on the one hand and are adjacent to the at least one control contour on the other hand.

If at least two valve elements are provided, one of the two or two valve elements can be drive-connected to an actuator. If only one of the two valve elements is drive-connected to the actuator, this is driven in rotation by the actuator, for example via a drive shaft, and can take the further valve element with it, in particular via a connecting shaft or a further drive shaft, which is or will be connected to the at least one further valve element. The connecting shaft or additional drive shaft can have a polygonal shape in cross section in order to be able to set a specific angular alignment of the two valve elements with respect to one another and to be able to maintain this when rotating.

In order to make it possible for the additional valve element to rotate only in one rotation angle range, it has proven to be advantageous to provide freewheeling between at least two valve elements in each case. This makes it possible to rotate the first valve element by the actuator while the second valve element is still stationary and is only taken along by the first valve element after a rotation angle range has been covered and then also rotates. This allows more degrees of freedom with regard to switching positions of the valve elements and thus the mass flow control device are created. Such a freewheel can be provided by providing at least one driver contour on the first valve element driven by the at least one actuator and at least one driver contour on the second valve element. A co-rotation of the second valve element can only take place after the driver contour and the driver contour mesh, so before they mesh, the first valve element rotates by a predeterminable angle of rotation without entraining the second valve element. The provision of a connecting shaft or further drive shaft between the two valve elements can be omitted if a freewheel is provided.

It is also possible to provide two actuators arranged at two opposite ends of the housing part and a number of valve elements associated with them and driveably connectable or connected to them in the interior of the housing part in order to increase the number of switch positions of the mass flow control device. It is thus possible to arrange an actuator on each of the two opposite ends of the housing part, which is in driving connection with a valve element arranged directly adjacent there in the interior of the housing part or with one of the other valve elements arranged in the interior of the housing, and further valve elements which each with the drivable by the actuators valve elements in turn are in drive connection or can be brought to be arranged inside the housing part. Not only can the valve elements arranged directly adjacent to the actuator be drive-connected to it directly, but also those arranged further away, which in turn are or can be drive-coupled to the other valve elements inside the housing of the mass flow control device. Thus, for example, a drive shaft can extend from the actuator to the remote valve element, possibly through another valve element, which is coupled to the other valve element via driver and driver contours.

For example, in this embodiment, the flow passages can be arranged approximately in the center of the housing part, viewed in its direction of longitudinal extent, ie in a central plane of the housing part. The respective transfer contours in the housing wall of the housing or housing part surrounding the valve elements are also advantageously arranged in the plane of the position of the respective at least one control contour of a respective valve element in the interior of the housing or housing part in this embodiment. This allows the control contour of a valve element to overlap with only one transfer contour or with several transfer contours, such as two transfer contours, or with none if the respective flow passage is to be closed or no medium is to pass from it in the direction of one of the other flow passages.

A proportional distribution of the medium to be conducted through the mass flow control device is possible via the respectively set angle of rotation of the respective valve element. If, for example, four valve elements are arranged inside the housing or at least one housing part thereof, each of which is assigned to one of four flow passages, two pairs of valve elements can be formed if two actuators are provided, which are arranged at the ends of the housing or housing part , wherein two valve elements are assigned to one actuator. A wall provided with an inner opening can be arranged in the interior of the housing or housing part between the two valve elements that are not directly coupled to one of the actuators. Since no medium flows through the valve elements, but only on the outside thereof, it is sufficient to provide the respective valve elements at the end with the respective sealing device in order to seal it from the interior of the housing part. The wall extending in the interior of the housing part can therefore serve to guide or to support the respective valve element arranged in the interior of the housing. Since no medium flows there, the wall arranged in the interior of the housing part can be perforated in order to reduce the weight, as already mentioned. The wall may also serve to increase the stability of the housing or housing part if the flow passages, which are in flow connection with the collecting lines arranged on the outside of the housing part, are arranged on the outside in the region of the wall arranged on the inside. The flow passages are thus advantageously arranged in the same plane or approximately the same plane as the at least one wall arranged in the interior.

If two actuators are provided, the flow passages of at least two valve elements that can be controlled separately by the two actuators can be flow-connected to one another via the at least one collecting line. Flow-connection of the otherwise separately controllable valve elements, possibly only flanged to one another or arranged in a housing, via the at least one collecting line is possible.

In particular via at least two valves that are drive-connected to one another via a freewheel lemente, which are driven by an actuator that can drive both valve elements via a drive shaft that is connected to one of the two valve elements, is a targeted flow guidance of medium between, from and to the flow passages via the respectively set different angles of rotation of the two valve elements on the housing or at least one housing part of the mass flow control device, for example for thermal management, for example in a vehicle, based on its cooling circuits and heating circuits.

At least one single-piece or multi-piece drive shaft can be provided. Both in the design as a one-piece and as a multi-piece drive shaft, this can extend through a first valve element into at least one second valve element connected to the first valve element in order to drive the at least one second valve element through the first while providing a freewheel. The single or multi-piece drive shaft passes through the first valve element, is drivingly connected to an actuator and serves to drive the first valve element directly through the actuator and the second valve element through the first, with a one-way clutch being provided before the second valve element is also rotationally driven will. For this purpose, the one-part or multi-part drive shaft can be provided with at least one first driver contour along its longitudinal extent, which interacts with at least one driver contour on the at least one first valve element, and with at least one second driver contour, which interacts with at least one driver contour on the at least one can attack entrained second valve element. The second valve element can also rotate when the first valve element is driven by the actuator after the driver contour of the drive shaft and the driver contour of the second valve element mesh. Before the entrainment contour and entrainment contour engage, the first valve element can be rotated by a predeterminable angle of rotation without entrainment of the second valve element.

If at least two housing parts are provided or if the housing comprises at least two housing parts, these can be coupled to one another by at least one coupling device. The at least one coupling device can have at least one collecting line section, at least one flow passage for the outflow of the medium from the mass flow control device and at least one fastening device for fastening the at least one coupling device to the adjacent housing parts. Thus, when at least two housing parts are provided, which are connected to one another by the at least one coupling device, there is the possibility of arranging any number of housing parts with valve elements arranged therein in series. The collecting lines of two adjacent housing parts are flow-connected to one another by the respective collecting line sections of the coupling devices. Since the coupling devices each have at least one header line section with at least one flow passage, medium can flow from the header lines of the at least two housing parts adjacent to the respective coupling device into the header line section of the coupling device and out of the mass flow control device through its at least one flow outlet. The respective coupling device can be releasably connected to the adjacent housing parts via the at least one fastening device, such as locking tabs, which engage over the latching lugs on the housing parts and hold onto them.

• 1 eine perspektivische Ansicht einer ersten Ausführungsform einer erfindungsgemäßen Massenstromsteuerungseinrichtung mit zwei endseitig angeordneten Aktuatoren sowie vier Strömungseinlässen und fünf Strömungsauslässen,
• 2 eine Seitenansicht der Massenstromsteuerungseinrichtung gemäß 1,
• 3 eine Längsschnittansicht entlang der Linie A-A aus 2 der Massenstromsteuerungseinrichtung gemäß 1,
• 4 eine Explosionsansicht der Massenstromsteuerungseinrichtung gemäß 1,
• 5a und 5b zwei erfindungsgemäße Ventilelemente der Massenstromsteuerungseinrichtung gemäß 1 bzw. 4,
• 6 eine perspektivische Ansicht eines erfindungsgemäßen Gehäuseteils der Massenstromsteuerungseinrichtung gemäß 1,
• 7 eine Frontansicht des Gehäuseteils gemäß 6,
• 8 eine Längsschnittansicht durch den Gehäuseteil entlang der Linie B-B aus 7,
• 9 eine perspektivische Ansicht zweier aneinander zu koppelnder Ventilelemente gemäß 4,
• 10 eine perspektivische Ansicht des Gehäuseteils gemäß 6 mit Einblick in dessen Inneres und Draufsicht auf dessen innere Wandung,
• 11 eine perspektivische Ansicht einer zweiten Ausführungsform einer erfindungsgemäßen Massenstromsteuerungseinrichtung mit zwei endseitig angeordneten Aktuatoren, wobei zwei Gehäuseteile mit dazwischen eingefügten Kopplungseinrichtungen vorgesehen sind,
• 12 eine Explosionsansicht der Massenstromsteuerungseinrichtung gemäß 11,
• 13 eine perspektivische Ansicht der Massenstromsteuerungseinrichtung gemäß 11, bei der an einem Ende der Aktuator entfernt ist, und Draufsicht auf die dort aus dem Gehäuseteil herausragende Antriebswelle,
• 14a eine perspektivische Ansicht zweier erfindungsgemäßer Ventilelemente mit dazwischen angeordnetem O-Ring,
• 14b eine perspektivische vergrößerte Ansicht des einen Ventilelements mit umlaufender Nut zum Anordnen des Dichtrings in Form des O-Rings gemäß 14a,
• 15a und 15b perspektivische Ansichten eines erfindungsgemäßen Ventilelements der Massenstromsteuerungseinrichtung gemäß 1 oder 11 mit doppel-T-förmiger Steuerkontur,
• 16a und 16b perspektivische Ansichten eines erfindungsgemäßen Ventilelements der Massenstromsteuerungseinrichtung gemäß 1 oder 11 mit birnenförmiger Steuerkontur,
• 17a und 17b perspektivische Ansicht eines erfindungsgemäßen Ventilelements der Massenstromsteuerungseinrichtung gemäß 1 oder 11 mit Y-förmiger Steuerkontur,
• 18a und 18b perspektivische Ansichten eines erfindungsgemäßen Ventilelements der Massenstromsteuerungseinrichtung gemäß 1 oder 11 mit T-förmiger Steuerkontur sowie Außendichtung und Innendichtung,
• 19 eine perspektivische Detailansicht, teilweise geschnitten, der Massenstromsteuerungseinrichtung gemäß 11 mit Blick auf ein Ventilelement gemäß 15a mit doppel-T-förmiger Steuerkontur,
• 20 eine perspektivische Detailansicht, teilweise geschnitten, der Massenstromsteuerungseinrichtung gemäß 11 mit Blick auf ein Ventilelement gemäß 16a mit birnenförmiger Steuerkontur,
• 21 eine perspektivische Detailansicht, teilweise geschnitten, der Massenstromsteuerungseinrichtung gemäß 11 mit Blick auf das Ventilelement gemäß 17a mit Y-förmiger Steuerkontur,
• 22 eine perspektivische Detailansicht, teilweise geschnitten, der Massenstromsteuerungseinrichtung gemäß 11 mit Blick auf das Ventilelement gemäß 18a mit T-förmiger Steuerkontur,
• 23 eine perspektivische Ansicht eines erfindungsgemäßen einteiligen Antriebswelle mit radial von dieser abstehendem Mitnehmerabschnitt und Mitnahmekontur,
• 24 eine perspektivische Ansicht eines Teils einer mehrteiligen erfindungsgemäßen Antriebswelle mit einem radial von dieser abstehenden Mitnehmerabschnitt,
• 25 eine perspektivische Ansicht einer erfindungsgemäßen zweiteiligen Antriebswelle, umfassend zwei Antriebswellenteile gemäß 24,
• 26 eine perspektivische Ansicht zweier aneinandergekoppelter Ventilelemente gemäß 15a und 15b, durchdrungen von der Antriebswelle gemäß 23, in einer ersten Position,
• 27 eine teilweise geschnittene perspektivische Ansicht der Anordnung gemäß 26, umfassend die beiden Ventilelemente und die Antriebswelle, in einer zweiten Position vom erstem und zweitem Ventilelement und Antriebswelle,
• 28 eine perspektivische, teilweise gebrochene Ansicht der Anordnung gemäß 26 und 27, enthaltend die beiden Ventilelemente und die Antriebswelle, wobei sich das zweite Ventilelement in einer um etwa 90° gegenüber der Position in 26 und 27 gedrehten Position befindet, und
• 29 eine perspektivische, teilweise gebrochene Ansicht der Anordnung aus zwei Ventilelementen und Antriebswelle gemäß 26 in einer vierten Position von zweitem Ventilelement und Antriebswelle.

To explain the invention in more detail, an exemplary embodiment of this will be described in more detail below with reference to the drawings. These show in:

• 1 a perspective view of a first embodiment of a mass flow control device according to the invention with two actuators arranged at the ends and four flow inlets and five flow outlets,
• 2 a side view of the mass flow control device according to FIG 1 ,
• 3 a longitudinal sectional view along the line AA 2 according to the mass flow control device 1 ,
• 4 an exploded view of the mass flow control device according to FIG 1 ,
• 5a and 5b two valve elements of the mass flow control device according to the invention 1 or. 4 ,
• 6 a perspective view of a housing part of the mass flow control device according to the invention 1 ,
• 7 a front view of the housing part according to FIG 6 ,
• 8th a longitudinal sectional view through the housing part along the line BB 7 ,
• 9 a perspective view of two valve elements to be coupled to one another according to FIG 4 ,
• 10 a perspective view of the housing part according to FIG 6 with insight into it Interior and top view of its inner wall,
• 11 a perspective view of a second embodiment of a mass flow control device according to the invention with two actuators arranged at the end, wherein two housing parts are provided with coupling devices inserted between them,
• 12 an exploded view of the mass flow control device according to FIG 11 ,
• 13 a perspective view of the mass flow control device according to FIG 11 , in which the actuator is removed at one end, and top view of the drive shaft protruding from the housing part there,
• 14a a perspective view of two valve elements according to the invention with an O-ring arranged in between,
• 14b a perspective enlarged view of a valve element with a circumferential groove for arranging the sealing ring in the form of the O-ring according to 14a ,
• 15a and 15b perspective views of a valve element according to the invention of the mass flow control device 1 or 11 with double T-shaped control contour,
• 16a and 16b perspective views of a valve element according to the invention of the mass flow control device 1 or 11 with pear-shaped control contour,
• 17a and 17b perspective view of a valve element according to the invention of the mass flow control device 1 or 11 with Y-shaped control contour,
• 18a and 18b perspective views of a valve element according to the invention of the mass flow control device 1 or 11 with T-shaped control contour as well as outer seal and inner seal,
• 19 a perspective detail view, partially sectioned, according to the mass flow control device 11 with a view to a valve element according to 15a with double T-shaped control contour,
• 20 a perspective detail view, partially sectioned, according to the mass flow control device 11 with a view to a valve element according to 16a with pear-shaped control contour,
• 21 a perspective detail view, partially sectioned, according to the mass flow control device 11 with a view of the valve element according to 17a with Y-shaped control contour,
• 22 a perspective detail view, partially sectioned, according to the mass flow control device 11 with a view of the valve element according to 18a with T-shaped control contour,
• 23 a perspective view of a one-piece drive shaft according to the invention with a driver section protruding radially from it and a driver contour,
• 24 a perspective view of part of a multi-part drive shaft according to the invention with a driver section projecting radially therefrom,
• 25 a perspective view of a two-piece drive shaft according to the invention, comprising two drive shaft parts according to 24 ,
• 26 a perspective view of two valve elements coupled to one another according to FIG 15a and 15b , penetrated by the drive shaft according to 23 , in a first position,
• 27 a partially sectioned perspective view of the arrangement according to 26 , comprising the two valve elements and the drive shaft, in a second position of the first and second valve element and drive shaft,
• 28 a perspective, partially broken view of the arrangement according to 26 and 27 , containing the two valve elements and the drive shaft, the second valve element being in a position rotated by approximately 90° with respect to the position in 26 and 27 rotated position, and
• 29 12 is a perspective, partially broken view of the two valve member and drive shaft assembly of FIG 26 in a fourth position of the second valve element and drive shaft.

the 1 until 4 show a mass flow control device 1. This has a housing, which comprises a housing part 2, and two actuators 3, 4 arranged on the ends of this in the longitudinal or axial direction. Instead of just one housing part 2, the housing can also be constructed in a modular manner from a plurality of housing parts which can be connected or connected to one another in a form-fitting and/or material-locking manner, in particular in the axial direction. The housing part 2 is how in particular the 3 , 4 as 6 , 7 , 8th and 10 can be removed, designed as a hollow body. For closing the end of the Housing part 2 are lid-shaped closure elements 5, 6 are arranged at both ends. These are as details in the exploded view in 4 particularly clearly visible. The two cover-shaped closure elements 5, 6 each have cranked closure tabs 50 and 60 projecting in a star shape. This snap to arranged on the outside of the housing part 2 locking lugs 20 in the 4 , 6 and 10 can also be seen at both ends of the housing part 2 at the ends. Accordingly, a detachable connection of the cover-shaped closure elements 5, 6 on the housing part 2 can be provided. In principle, it is also possible to provide a non-detachable connection here.

The housing part 2 also has a peripheral housing wall 21 and on the outside 22 thereof five collecting lines in the form of axial channels 23 which are distributed over the circumference of the housing wall 21 and extend in the longitudinal direction of the housing part 2 . The interior 24 of a respective axial channel 23 is flow-connected to the interior 25 of the housing part, which delimits the housing wall 21, via transfer contours 26 in the form of through-openings.

On the outside 27 of the axial channels 23, the latching lugs 20 are arranged on the one hand in each case at the end, in order to be able to latch the cover-shaped closure elements 5, 6 with their closure tabs 50, 60 there. On the other hand, the five axial channels 23 each have a connecting piece 230 , 231 , 232 , 233 , 234 on their outer side 27 . These are all arranged approximately in one plane, in particular the 1 until 4 and 6 until 8th can be seen. As in the 3 and 10 As can be seen, the connecting pieces 230 to 234 are flow-connected to the interior 24 of the respective axial channel 23 via a respective flow passage 235, 236, 237, 238, 239. In the embodiment shown in the figures, the flow outlets 235 to 239 are in the form of through openings in the outer wall 240 of a respective axial channel 23 . The flow passages 235, 236, 237, 238, 239 can be used for medium to flow out or medium to flow in. The respective flow direction of the medium through these can be made dependent on the application in which the mass flow control device 1 is used.

How further in particular the 1 until 4 as 8th it can be seen that further connecting pieces 241 , 242 , 243 , 244 are provided on the outside 22 of the housing wall 21 , in an arrangement between two adjacent axial channels 23 . These are arranged next to one another approximately in a line or row in the longitudinal or axial direction of the housing part 2 . The connecting piece 241 to 244 are connected to the interior 25 of the housing part 2 via flow passages 245, 246, 247, 248, such as the 3 and 6 as 8th and 10 can be seen, as through-openings in the housing wall 21 are formed. A flow passage 245 to 248 is assigned to each connecting piece 241 to 244 . The flow passages 235, 236, 237, 238, 239 can also be used for medium to flow in or to flow out. The respective flow direction of the medium through these can be made dependent on the application in which the mass flow control device 1 is used.

In the interior 25 of the housing part 2, which is bounded by the housing wall 21, as shown in particular in the exploded view of the mass flow control device 1 in 4 can be removed, four valve elements 7, 8, 9, 10 are arranged. One of the valve elements, namely the valve element 7, is in 5b shown in the detailed view, while the valve element 8 in 5a is shown. The two valve elements 9 and 10 are in 9 to see in detail. All valve elements 7 to 10 have an essentially cylindrical valve body 70 , 80 , 90 , 100 . The valve elements 7, 8 or 9, 10 also each have an external flow contour in the form of a circumferential groove 71 or 81 or 91 or 101 and a control contour connected to this in the form of a T-shaped groove 72 or 82 or 92 and 102 respectively. Instead of the circumferential groove 71, 81, 91, 101, another flow contour on the outside can also be provided, which allows medium to flow on the outside of the valve element 7, 8, 9, 10. The T-shaped groove 72, 82, 92, 102 serves as a control contour in order to allow the medium flowing in the respective circumferential groove 72, 82, 92, 102 to continue flowing into the transfer contours 26. The T-shaped groove 72, 82, 92, 102 thus serves to control the medium flow.

Each of the valve elements 7, 8 in the 5a and 5b and correspondingly also the valve elements 9, 10, which can each be designed correspondingly to the valve elements 7, 8, each have a drive shaft 73, 83, 93, 103 at the end. On the one hand, the two valve elements 7, 8 can be drive-coupled to one another via the drive shaft 83, and on the other hand via the drive shaft 73 to the first actuator 3 of the mass flow control device 1. The drive shaft 73 thus protrudes in the assembled state, as in FIGS 1 until 3 can be seen, through an inner passage opening 51 in the cover-shaped closure element 5, so that the drive shaft 73 can be guided into the first actuator 3 and can accordingly be driven in rotation by the latter. The cover-shaped closure element 6 is with a corresponding through-opening 61 is provided, such as that 3 and 4 can be removed, so that a drive shaft 93 of the valve element 9 can protrude therethrough and be inserted into the second actuator 4 in order to be engaged and rotated by it. Correspondingly, a drive shaft 103 of the valve element 10 is drivingly coupled to the valve element 9 . Coupling via the drive shafts 83 or 103 occurs in particular only if a fixed alignment of the two valve elements to one another is to be set and maintained. For this purpose, the two drive shafts 83, 103 for connecting the respective two valve elements 7, 8 and 9, 10 have a polygonal profile in cross section, for example a hexagonal or octagonal profile.

In order to enable freewheeling between the respective valve element pairs 7, 8 and 9, 10, the valve element 7 and accordingly also the valve element 9 has a driver contour 74 and 94, which is located on the end of the respective end opposite the drive shaft 73 and 93 Valve element 7 and 9 is arranged. The respective other valve element 8 or 10 has a respective driving contour 84 or 104 on the side facing the valve element 7 or 9 . This makes it possible, when the respective valve element 7 or 9 is driven in rotation by the first and the second actuator 3, 4, to rotate only this respective valve element 7, 9, while initially the respective valve element 8 or 10 is not rotated as well. A co-rotation only takes place after a predeterminable rotation angle range has been swept over, when the respective driver contour 74 or 94 comes into engagement with the respective driver contour 84 or 104 and the respective valve element 8 or 10 thus rotates. This makes it possible to provide numerous different flow circuits in which individual flow passages 245 to 248 can be flow-connected to individual flow passages 235 to 239. Even if a freewheel is provided, the drive shafts 83 or 103 can still be provided on the valve elements 8, 10 in order to save costs, but these are then of no further importance for the freewheel variants. Furthermore, the respective drive shaft 73, 93 can also extend from the respective actuator 3, 4 into the respective valve element 7, 9 or the valve elements 8, 10 in order to drive them. The valve elements 7, 9 would then be entrained via the entraining and entraining contours 74, 84, 94, 104, which would, however, each have the opposite function, with the provision of a freewheel.

Driving contours would then be the contours 74 and 94, while the driver contours would then be the contours 84, 104.

In 9 the two valve elements 9, 10 are shown as a detailed view. It can also be seen here that the respective T-shaped groove 92, 102 of the two valve elements 9, 10 is not arranged in alignment with one another in order to be able to control different flow passages and to be able to supply them with medium. In 9 therefore only the T-shaped groove 102 can be seen. The two circumferential grooves 91, 101 as well as the driver contour 94 and driver contour 104 can also be seen, but also the two drive shafts 93, 103, with the drive shaft 103 driving the valve element 9 via the drive shaft 93 and coupling the two valve elements 9, 10 via the driver contour 94 and the driving contour 104 has no function.

All valve elements 7 to 10 are also provided on the outside with projecting sealing contours 76, 77 or 86, 87 or 96, 97 or 106, 107, which form a circumferential groove 78, 88, 98, 108 between them, in which one Gasket can be arranged (not shown). At the opposite end of the valve elements 7 to 10, these have supporting contours 75, 85, 95, 105. Due to the sealing contours 76, 77 or 86, 87 or 96, 97 or 106, 107 or the seals to be arranged in the circumferential grooves 78, 88, 98, 108 provided between them, which are respectively attached at the ends to the valve elements 7, 8 , 9, 10 are arranged, a sealing of the valve elements 7 to 10 with respect to the inside 28 of the housing wall 21 of the housing part 2 of the mass flow control device 1 is possible. The respective sealing contours of the valve elements 7 to 10 are designed in such a way that on the one hand a fluid or medium-tight seal with respect to the inner side 28 of the housing wall 21, but on the other hand a rotation of the valve elements within the housing wall 21 of the housing part 2 of the mass flow control device is still possible. Additional sealing elements 260 are provided for sealing the transfer contours 26 with respect to the respective valve element 7, 8, 9, 10 (see Fig 4 ). These sealing elements 206 lie on the respective cylindrical valve body 70, 80, 90, 100 of the valve elements 7, 8, 9, 10, which is also provided with the respective control contour or T-shaped groove 72, 82, 92, 102.

A wall 29 provided with an inner opening is arranged in the interior 25 of the housing part 2 between the two valve elements 8 , 10 which are not directly coupled to one of the actuators 3 , 4 . This has an inner through opening 129 . The wall 29 can be used to guide or support the respective valve elements 8, 10 arranged in the interior 25 of the housing part 2 and to increase the stability of the housing part 2 precisely in the plane in which the connecting pieces 230 to 234 are arranged.

Medium, such as a fluid, can flow into the respective circumferential grooves 71, 81, 91, 101 of the valve elements 7 to 10 via the connection pieces 241 to 244 and accordingly the flow passages 245 to 248. The respective circumferential grooves 71, 81, 91, 101 of the valve elements 7-10 are oriented to be in flow communication with the flow passages 245-248. From the respective circumferential groove 71, 81, 91, 101, the medium reaches the T-shaped groove 72, 82, 92, 102, which is flow-connected to this respective circumferential groove. Via the respective first and second actuator 3, 4, the valve elements 7 to 10 with regard to their respective control contour, i.e. their T-shaped groove 72, 82, 92, 102, in flow connection with the transfer contours 26 of the axial channels 23, which are designed as collecting lines for collecting medium, and via the flow passages 235, 236, 237, 238, 239 can be flow-connected to the connecting pieces 230 to 234. Depending on the position of the respective T-shaped groove or control contour of each valve element 7 to 10, medium can thus flow through one or more of the flow passages 235 to 239 in order to convey medium through the associated connection piece 230 to 234 into various lines connected there, the Can be part of a fluid system, such as a cooling circuit or a heating circuit, to allow access. Respective lines of a fluid system, in particular a cooling circuit or a heating circuit, can also be connected to the connecting pieces 241 to 244 and accordingly to the flow passages 245 to 248 assigned to them, so that mass flows within the respective fluid circuits are controlled in the desired form via the mass flow control device 1 be able.

Instead of in the 1 until 10 With the four flow passages 245 to 248 arranged in a row and five flow passages 235 to 239 arranged in a plane around the circumference of the housing part 2, it is of course also possible to provide more or fewer flow passages for the inflow and outflow of medium into or out of the mass flow control device 1. Advantageously, each flow passage is assigned a respective valve element with its outside flow contour, such as the circumferential groove, only one circumferential groove or some other outside flow contour that allows medium to flow on the outside of the respective valve element. Instead of forming a groove, a different shape of the flow contour on the outside can also be selected, which correspondingly enables medium to flow. Instead of the T-shape of the control contour, a different shape can be selected that enables a targeted, controlled inflow of medium from the circumferential groove or external flow contour of the respective valve element into a respective transfer contour that leads into a respective collecting line. Thus, at least partial flow around the valve elements, but no flow through them with medium in the mass flow control device 1 is provided. As a result, media streams can be controlled more quickly and in a more targeted manner. Furthermore, a very compact and stable configuration of the mass flow control device is possible. Instead of two actuators, only one actuator can also be provided, which drives, for example, more than just two valve elements, it being possible for a respective freewheel to be provided between each two valve elements.

In the 11 until 13 a further embodiment of the mass flow control device 1 is shown. In this embodiment variant, it has a housing formed from two housing parts, a first housing part 2a and a second housing part 2b. At their opposite ends are the two housing parts 2a and 2b, as in the embodiment according to FIG 1 , With the first actuator 3 and the second actuator 4 provided. In contrast to the embodiment according to 1 Flow passages 235 to 239 and connection pieces 230 to 234 connected to them are not arranged along the collecting lines or axial channels 23, but rather separate coupling devices 300 are provided between the respective collecting lines or axial channels 23 of the two housing parts 2a and 2b. The coupling devices 300 each have a header line section 323 which is interposed between the adjacent header lines or axial channels 23 of the two housing parts 2a and 2b in order to provide a flow connection between the header lines or axial channels 23 of the two housing parts 2a, 2b. This can in particular 11 and 13 be taken particularly well.

The respective coupling device 300 has a connecting piece 330 in addition to the collecting line section 323 . In order to be able to establish a flow connection between the interior of the collecting line section 323 and the inner cavity of the respective connecting piece 330, there is a flow passage (not visible in the figures) in the collecting line section 323 for flow-connecting the inner cavity of the collecting line section 323 and the inner cavity of the connecting piece 330 provided. Furthermore, the coupling device 300 has two locking tabs 350, 351. These are used to connect the coupling devices 300 with the the housing parts 2a and 2b, wherein the housing parts 2a and 2b, similar to the housing part 2 according to 1 , are provided with locking lugs 20 in the area of the respective collecting lines or axial channels 323 at the end, on the outside thereof. The locking tabs 350, 351 can on the locking lugs 20 on the manifolds or axial channels 23 of the two adjacent housing parts 2a and 2b, such as in particular 11 and 13 can be removed particularly well, are locked. The locking lugs 20, which are each arranged in the end area of the housing parts 2a and 2b, can best be seen in the exploded view of the mass flow control device 1 in 12 be removed.

The positioning of the coupling devices 300 with their connecting pieces 330 along the mass flow control device corresponds to the positioning of the connecting pieces 230 to 234 of the mass flow control device 1 according to FIG 1 , so that the medium can flow out of the connection piece 330 of the coupling devices 300 from the mass flow control device 1 or can flow into it, as of course also in the embodiment according to FIG 11 until 13 a reverse flow direction of the mass flows in the mass flow control device 1 is possible.

As in particular continues the exploded view in 12 can be seen, the respective header line section 323 has connecting sections 322, 324 that protrude at the ends and engage or engage in the header lines 23 of the housing parts 2a and 2b to enable a sealed connection to the header lines or axial channels 23 of the two adjacent housing parts 2a and 2b . In the area of the connecting sections 322, 324, sealing elements can be arranged for further sealing.

As also in particular in 12 can be seen, two valve elements 307, 308 and 309, 310 are arranged in the two housing parts 2a and 2b.

In the 14a until 18b different design variants for the valve elements 307, 308 or 309, 310 are shown, in each case by way of example using the valve element 307 or in 14a of the valve elements 307 and 308. The design variants of the valve elements differ from one another in terms of the shape of their respective control contour. In the embodiment variant according to FIGS. 14a and 14b, the control contour 380 is double-T-shaped, as is the case in the embodiment variant according to FIG 15a and 15b . In the variant according to 16a and 16b is the shape of the control contour 380 pear-shaped, in the embodiment according to 17a and 17b Y-shaped and in the variant according to 18a and 18b T-shaped. Other shapes of the control contour 380 are of course also possible.

In the 19 until 22 are the different design variants of valve elements that are shown in the 14a until 18b are shown in enlarged detail, inserted into the mass flow control device 1, here in particular the housing part 2a thereof. In 19 is the valve element 307 with the double-T-shaped control contour 380, as in the 14a , 14b and 15a , 15b is shown to see in 20 the pear-shaped control contour 380 of the valve element 307 according to the 16a and 16b , in 21 the Y-shaped control contour 380, as for the valve element 307 in the 17a and 17b is shown, and in 22 the T-shaped control contour 380, as for the valve element 307 in the 18a and 18b is shown. In the 19 until 22 part of the housing part 2a is shown broken away in order to see the respective valve element 307 and here in particular its respective control contour 380. It can be seen here that the control contour of the valve element 307 is positioned in such a way that the transfer contours or passage openings 26 a respective collecting line or a respective axial channel 23 can flow-connect. The respective control contour 380 fluidly connects two adjacent collecting lines or axial channels 23 of the housing part 2a of the mass flow control device 1 to one another.

The in the 14a until 18b The valve elements 307, 308 shown and the valve elements 309, 310, which can be designed accordingly, each have a circumferential groove 381 as a flow contour which is in flow communication with the respective control contour 380, a cylindrical valve body 382 and two sealing contours 383, 384 spaced apart from one another interposed circumferential groove 385 for inserting an outer seal in the form of a sealing ring 390, as in particular 14a and 18a , 18b can be removed. An inner seal 391 can also be arranged inside the respective valve element 307, 308 or 309, 310 (not shown), as is shown by way of example 18a can be removed particularly well. The inner seal 391 serves to seal against a drive shaft 360, which is passed through the valve elements 307, 308 or 309, 310, as is the case, for example 28 can be removed.

Like the 14a , 14b as 16a and 17a can also be found, white The valve elements 307, 308 or 309, 310 have a segment-shaped opening 386 on the inside at the level of the circumferential groove 381 or flow contour on the outside or in the transition to the sealing contour 383 in the area of the end face of the respective valve element, and opposite to this a segment-shaped element 387 on. The segment-shaped element 387 protrudes at the end face of the respective valve element 307, 308 or 309, 310 inside the latter. The segment-shaped opening 386 and the segment-shaped element 387 serve to drive the valve elements 307, 308 or 309, 310 in rotation via the respective drive shaft 360, which is actuated by the respective actuators 3, 4.

Instead of a drive shaft formed on each of the valve elements, as is the case with the valve elements 7, 8, 9, 10, two drive shafts 360 are provided for actuating the valve elements 307, 308 or 309, 310. Such a drive shaft 360 is shown in the detailed view in FIG 23 refer to. This is in the in 23 The embodiment variant shown is formed in one piece and has a polygonal section 361 at one end, which can be guided into the first actuator 3 or the second actuator 4 and drive-coupled to it, thus being rotationally driven by it. An annular projecting stop 362 is arranged or formed on the outside of the drive shaft 360 adjacent to the polygonal section 361 . A projecting, plate-like section 363 is provided at a distance from this, which has a segmental recess 364 as a driving contour. This serves to engage a corresponding segment-shaped element 387 of a respective valve element 307 or 309 in order to actuate the valve element 307 or 309, ie to be able to drive it in rotation by the respective actuator 3 or 4.

At a distance from the plate-like section 363, a segment-shaped projecting driver section 365 is also formed on the outside of the drive shaft 360. This segment-shaped driver section 365 is used to drive the two valve elements 308, 310 in rotation after they have run through a freewheel. The drive shaft 360 makes it possible, via the driver section 365, to drive the respective valve element 308 or 310 with freewheel, as is the case 26 until 29 can be removed particularly well. 26 shows the engagement of the segment-shaped element 387 of the valve element 307 engaging in the segment recess 364 of the plate-shaped section 363 of the drive shaft 360. If the drive shaft 360 is driven in rotation by the actuator 3, it accordingly takes the valve element 307 due to the engagement of the driving contour 387 in the segment recess 364 of the plate-shaped section 363 of the drive shaft 360 with. The control contour 380 can accordingly be flow-connected to the corresponding transfer contours or passage openings 26 and thus to collecting lines or axial channels 23 of the housing part 2a (see 19 until 22 ).

In 27 A second position of the valve element 307 and the drive shaft 360 can be seen, with the segment-shaped element 387 of the valve element 307 no longer engaging in the segment recess 364 of the plate-shaped section 363 of the drive shaft 360 . The driver section 365 of the drive shaft 360 is in the in 27 shown position also disengaged from the valve element 308, so that it is not driven in rotation by the drive shaft 360 or by the actuator 3 to be connected thereto, and is therefore not twisted together with the valve element 307.

in the in 28 Positioning of the drive shaft 360 and the two valve elements 307 and 308 shown, the positioning of the valve element 307 is the same as in FIG 27 . However, the valve element 308 was compared to the positioning in the 26 and 27 rotated relative to the valve element 307 by actuation via the driver section 365 of the drive shaft 360 . The driver section 365 acts on the segment-shaped element 387 of the valve element 308 or has according to 28 attacked on this one, since in the in 28 In the broken representation shown, the driver section 365 is again disengaged from the segment-shaped element 387 as the driver contour of the valve element 308 .

in the in 29 shown positioning of the drive shaft 360 and the two valve elements 307, 308, the valve element 308 was twisted even further, so that its control contour 380 is opposite to the positioning in 28 as well as the 26 and 27 is in a new position. In this, other collecting lines or axial channels 23 of the corresponding housing part 2a of the mass flow control device 1, which in 29 is not shown to be fluidly connected.

The comparison of 26 until 29 It can thus be seen on the one hand that drive shaft 360 extends through both valve elements 307, 308 or through both valve elements 309, 310, and that it is possible to drive valve element 308 or 310 remote from actuator 3 or 4 with freewheeling , thus the valve element 308 or 310 can be actuated with freewheel by the drive shaft 360, i.e. it does not automatically rotate when the valve element 307 or 309 rotates if the respective valve element 307 or 309 is actuated by the drive shaft by the respective actuator 3 or 4 is pressed.

Instead of a one-piece or one-piece drive shaft 360 as shown in 23 and in the 26 until 29 is shown as an example, a multi-part, for example two-part drive shaft 460, as shown in 25 shown can be provided. The drive shaft 460 consists of two, in particular, identical drive shaft parts 461, 462. These are plugged into one another at the ends, as in 25 to see. Each of the two drive shaft parts 461, 462 has an end polygonal section 463 and a cylindrical hollow body section 464 accordingly. In order to enable the drive shaft part 462 to be plugged into one another in a rotationally fixed manner and, accordingly, to rotate with it when the drive shaft part 461 is driven, the cylindrical, hollow body section 464 is advantageously also provided with a polygonal shape in its inner cavity that is opposite to the outer shape of the polygonal section 463 and receives it in a form-fitting manner. The polygonal section 463 of the drive shaft part 462 engages in the cylindrical hollow body section 464 of the drive shaft part 461 in a form-fitting manner, so that I can follow the two-piece drive shaft 25 results.

In addition to the polygonal section 463, the two drive shaft parts 461, 462 each have a circumferential collar 465 with a segment section 466 projecting from it. After the two drive shaft parts 461, 462 have been joined or plugged together, the two segment sections 466 are offset at an angle to one another in the longitudinal direction of the resulting two-part or two-part drive shaft 460, such as in particular 25 can be removed. The segment recess 364 and the driver section 365 on the one-piece or one-piece drive shaft 360 according to FIG 23 are offset at an angle to one another in the longitudinal direction in order to enable freewheeling of the valve element 308 or 310 which is remote from the actuator. Accordingly, the segment sections 466 on the drive shaft parts 461, 462 are offset by an angle to one another. The segment sections 466 on the two drive shaft parts 461, 462 in turn serve to interact with driving contours on the respective valve elements 307, 308 or 309, 310.

In addition to a two-part drive shaft 460, the drive shaft can also include more than two drive shaft parts, for example, be composed of three, four or more parts, depending on how many valve elements are to be driven via the drive shaft or how many valve elements are inside the housing or the housing parts 2a , 2b of the mass flow control device 1 are or are to be arranged. Via the offset segment sections 466 on the individual drive shaft parts of the drive shaft 460 plugged together in this way, rotary driving of the first drive shaft part is then possible on the one hand, which engages with the actuator 3 or 4 via its polygonal section 463. On the other hand, with freewheeling via the further segment sections 466 on the other drive shaft parts, it is possible to drive the further valve element(s) in rotation, which are plugged or joined to the first valve element, for example the valve element 307 or 309, with freewheeling.

In addition to the embodiments of a mass flow control device for controlling mass flows in a medium distribution system described above and shown in the exemplary embodiment, numerous others can be provided in which at least one housing with at least one housing part, at least one actuator, at least one within the at least one housing part can be rotated arranged valve element and at least two flow passages are provided, of which at least one serves for the inflow of medium into the mass flow control device and at least one for the outflow of the medium from it, wherein the at least one actuator for driving one of the valve elements, i.e. for adjusting its rotational positions within the Housing part, provided and can be drive-coupled to this, the housing part in the direction of its longitudinal extension at least one collecting line which can be flow-connected to flow outlets or -composite en, and the at least one collecting line has at least one transfer contour in the direction of the at least one valve element arranged in the interior of the housing part. The at least one valve element is provided with an outside flow contour for medium to flow around and at least one control contour that can be flow-connected or flow-connected to the outside flow contour, wherein the outside flow contour can be brought into flow connection with a respective flow passage and the control contour with at least one of the transfer contours in the housing part can be brought into flow connection.

Reference List

1

mass flow control device

2

housing part

2a

first housing part

2 B

second housing part

3

first actuator

4

second actuator

5

lid-shaped closure element

6

lid-shaped closure element

7

valve element

8th

valve element

9

valve element

10

valve element

20

detent

21

housing wall

22

outside

23

manifold/axial duct

24

Interior of 23

25

interior of 2

26

transfer contour/access opening

27

outside

28

inside

29

wall

50

locking tab

51

passage opening

60

locking tab

61

passage opening

70

cylindrical valve body

71

circumferential groove

72

T-shaped groove

73

drive shaft

74

carrier contour

75

support contour

76

sealing contour

77

sealing contour

78

circumferential groove

80

cylindrical valve body

81

circumferential groove

82

T-shaped groove

83

drive shaft

84

driving contour

85

support contour

86

sealing contour

87

sealing contour

88

circumferential groove

90

cylindrical valve body

91

circumferential groove

92

T-shaped groove

93

drive shaft

94

carrier contour

95

support contour

96

sealing contour

97

sealing contour

98

circumferential groove

100

cylindrical valve body

101

circumferential groove

102

T-shaped groove

103

drive shaft

104

driving contour

105

support contour

106

sealing contour

107

sealing contour

108

circumferential groove

129

inner passage opening

230

connecting piece

231

connecting piece

232

connecting piece

233

connecting piece

234

connecting piece

235

flow passage

236

flow passage

237

flow passage

238

flow passage

239

flow passage

240

outer wall of 23

241

connecting piece

242

connecting piece

243

connecting piece

244

connecting piece

245

flow passage

246

flow passage

247

flow passage

248

flow passage

260

sealing element

300

coupling device

307

valve element

308

valve element

309

valve element

310

valve element

322

connection section

323

manifold section

324

connection section

330

connecting piece

350

locking tab

351

locking tab

360

drive shaft

361

polygonal section

362

annular stop

363

plate-like section

364

segment recess

365

flight section

380

control contour

381

Circumferential groove/flow contour

382

cylindrical valve body

383

sealing contour

384

sealing contour

385

circumferential groove

386

Driver contour / segment-shaped opening

387

Driving contour / segment-shaped element

390

Sealing ring/outer seal

391

inner seal

460

drive shaft

461

driveshaft part

462

driveshaft part

463

polygonal section

464

cylindrical hollow body portion

465

collar

466

segment section

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 102015201246 A1 [0002]

Claims (15)

Mass flow control device (1) for controlling mass flows in a medium distribution system, comprising at least one housing with at least one housing part (2, 2a, 2b), at least one actuator (3, 4), at least one within the at least one housing part (2, 2a, 2b ) rotatable or arranged valve element (7, 8, 9, 10, 307, 308, 309, 310) and at least two flow passages (235, 236, 237, 238, 239, 245, 246, 247, 248), of which at least one serves for the inflow of medium into the mass flow control device (1) and at least one for the outflow of the medium from it, wherein the at least one actuator (3, 4) is connected to the at least one valve element (7, 8, 9, 10, 307, 308, 309, 310) can be coupled or is coupled for rotating the position adjustment of the valve element (7, 8, 9, 10, 307, 308, 309, 310), characterized in that the housing or the at least one housing part (2, 2a, 2b) in Direction of its longitudinal extension with at least one collecting line (23) which is provided with at least one of the flow passages (235, 236, 237, 238, 239, 245, 246, 247, 248) or can be flow-connected or is connected, the at least one collecting line (23) having at least one transfer contour (26) in the direction of the at least one valve element (7, 8, 9, 10, 307, 308, 309, 310), and that the at least one valve element (7, 8, 9, 10, 307, 308, 309, 310 ) is provided with at least one flow contour (71, 81, 91, 101, 381) on the outside and with at least one control contour (72, 82, 92, 102, 380) that can be or is connected to this flow contour, wherein the flow contour (71, 81 , 91, 101, 381) can be or is in flow connection with one of the flow passages (235, 236, 237, 238, 239, 245, 246, 247, 248) and wherein the at least one control contour (72, 82, 92, 102 , 380) of the at least one valve element (7, 8, 9, 10, 307, 308, 309, 310) with the at least one transfer contour (26) in flow connection ng can be brought or is. Mass flow control device (1) after claim 1 , characterized in that the at least one valve element (7, 8, 9, 10, 307, 308, 309, 310) has a substantially cylindrical valve body (70, 80, 90, 100, 382) which is connected to the at least one outside Flow contour (71, 81, 91, 101, 381), in particular a circumferential groove, and which is provided with at least one control contour (72, 82, 92, 102, 380) that can be brought or is in flow connection with it. Mass flow control device (1) after claim 1 or 2 , characterized in that the control contour (72, 82, 92, 102, 380) is provided with at least one wider section and at least one narrower section, in particular essentially T-shaped, double-T-shaped, Y-shaped, triangular, pear-shaped. Mass flow control device (1) according to one of the preceding claims, characterized in that the at least one collecting line (23) is at least one axial channel extending in the longitudinal or axial direction of the at least one housing part (2, 2a, 2b). Mass flow control device (1) according to one of the preceding claims, characterized in that the at least one collecting line (23) is an integral part of the housing or of the at least one housing part (2, 2a, 2b). Mass flow control device (1) according to one of the preceding claims, characterized in that the transfer contours (26) in the longitudinal direction of the housing or of the at least one housing part (2, 2a, 2b) in the plane of the at least one control contour (72, 82, 92, 102 , 380) of a respective valve element (7, 8, 9, 10, 307, 308, 309, 310) are arranged. Mass flow control device (1) according to one of the preceding claims, characterized in that the flow passages (235, 236, 237, 238, 239, 245, 246, 247, 248) over the circumference of the housing or of the at least one housing part (2, 2a, 2b) are distributed, in particular five flow passages (235, 236, 237, 238, 239) are distributed over the circumference of the housing part (2) in one plane. Mass flow control device (1) according to one of the preceding claims, characterized in that at least two flow passages (245, 246, 247, 248) are arranged adjacent to one another in the longitudinal or axial direction of the housing, in particular of the at least one housing part (2, 2a, 2b). in particular two to four flow passages (245, 246, 247, 248) are arranged in a row adjacent to one another in the longitudinal direction of the housing or the at least one housing part (2, 2a, 2b) on the latter. Mass flow control device (1) according to one of the preceding claims, characterized in that at least one sealing device (75, 76, 77, 85, 86, 87, 95, 96, 97, 105, 106, 107, 390, 391) and/or is provided between two valve elements (7, 8, 9, 10, 307, 308, 309, 310) for sealing the valve elements (7, 8, 9, 10, 307, 308, 309, 310) against each other and against the housing or that at least a housing part (2, 2a, 2b) and/or opposite the at least one transfer contour (26) and/or the at least one drive shaft (360, 460), with rotation of the valve elements (7, 8, 9, 10, 307, 308 , 309, 310) within the housing or the at least one housing part (2, 2a, 2b). Mass flow control device (1) according to one of the preceding claims, characterized in that when at least two valve elements (7, 8, 9, 10, 307, 308, 309, 310) are provided, one of the respective two valve elements (7, 8, 9, 10, 307, 308, 309, 310) can be drivingly connected or is connected to the actuator (3, 4) and freewheeling is provided between at least two valve elements (7, 8, 9, 10, 307, 308, 309, 310) in each case. Mass flow control device (1) according to one of the preceding claims, characterized in that at least one single or multi-part drive shaft (360, 460) is provided, which extends through a first valve element (307, 309) into at least a second valve element connected to the first valve element (307, 309) associated valve element (308, 310) for driving the at least one second valve element (308, 310) through the first to provide overrunning. Mass flow control device (1) according to one of the preceding claims, characterized in that at least two housing parts (2a, 2b) are provided and are coupled to one another by at least one coupling device (300). Mass flow control device (1) after claim 12 , characterized in that the at least one coupling device (300) has at least one collecting line section (323), at least one flow passage for the medium to flow out of the mass flow control device (1) or into it and at least one fastening device (350, 351) for fastening the at least one Coupling device (300) on the adjacent housing parts (2a, 2b). Mass flow control device (1) according to one of the preceding claims, characterized in that two actuators (3, 4) and a number of valve elements (7, 8, 9, 10, 307, 308, 309, 310) assigned to them and driveably connectable or connected to them in the interior (25) of the housing or of the at least one housing part (2, 2a, 2b). are for increasing the number of switching positions of the mass flow control device (1). Mass flow control device (1) according to one of the preceding claims, characterized in that when two actuators (3, 4) are provided, the flow passages of at least two valve elements (7, 8, 9, 10, 307, 308, 309, 310) via the at least one collecting line (23) can be flow-connected or are connected to one another.

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