DE102021000262A1 - 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) rotatably arrangeable 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 at least one of which is used for the flow of medium into the mass flow control device (1) and at least one for the flow of the medium therefrom, 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 coupled for rotating 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 the direction its longitudinal extent is provided 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 or is flow-connected, the at least one collecting line (23) having 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) with at least one outside flow contour (71, 81, 91, 101, 381) and provided with at least one control contour (72, 82, 92, 102, 380) which can be or is connected to the flow, the outside flow contour (71, 81, 91, 101, 381) is 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) can be or is brought into flow connection 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 that can be rotatably arranged or arranged within the at least one housing part and at least two flow passages, at least one of which for inflow of Medium is used in the mass flow control device and at least one for the outflow of the medium therefrom, wherein the at least one actuator can be coupled or coupled to the at least one valve element for rotating position adjustment 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 with at least two inputs and three outputs. A rotating body is rotatably mounted in the housing and a rotating body is provided so that it can rotate between several control positions and has at least one opening on the circumference and / or through it. The outlets are arranged with different orientations around the rotating body. The rotating body is arranged sealingly within a chamber of the housing in such a way that a coolant flow entering the housing, depending on the respective control position of the rotating body, can at least partially exit through one of the outlets or is blocked from its exit. The outputs are arranged in a common plane around the longitudinal axis of the rotating body. The rotating body is designed to guide coolant flows entering through the inputs together to one of the outputs in the associated control position and to block the respective other output at the same time. The two chambers of the housing each have a spherical shape, the two chambers merging into one another and the rotating body being arranged in these chambers. The rotating body is designed as a hollow body, the wall of which has several openings in the form of through openings.

The present invention is based on the object of providing a mass flow control device, improved over 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 to be provided in a vehicle in which a number of different medium circuits, such as fluid circuits, can be interconnected in order to control and distribute the medium flow or fluid flow in the fluid system in an application-specific desired 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 this should be made possible by the mass flow control device, in particular a separation and coupling of different fluid circuits.

According to the preamble of claim 1, 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, in that the housing or the at least one housing part in the direction of its longitudinal extension is provided with at least one collecting line, which is provided with at least one of the flow passages or is flow connectable or connected, 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 with at least one outside flow contour and with at least one control contour which can be or is connected to this flow is provided, the outside flow contour being or being 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 with the at least one transfer contour can be brought into flow connection or is. Developments of the invention are defined in the dependent claims.

As a result, 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, for example a vehicle, is provided, which has a housing with at least one housing part, at least one actuator, at least one inside the at least comprises a housing part rotatably arranged or can be arranged valve element and at least two flow passages for medium for the inflow of medium into the mass flow control device and for the outflow of the medium therefrom. The at least one actuator of the mass flow control device can be coupled to the at least one valve element in order to adjust its position in a rotating manner, the at least one valve element being arranged within the housing or the at least one housing part. A joining of the The actuator with the at least one valve element can, for example, take place by means of a drive shaft arranged on the valve element. With this the actuator is in engagement or can be brought into engagement with this in order to drive the valve element in rotation. The valve element has one or at least one external flow contour, in particular a groove, on its outer circumference. This can be provided completely circumferentially around the valve element or only over a partial area of the outer circumferential 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 flows out of it through the flow passage, and for forwarding 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, that is to say in its jacket region, the at least one control contour which is or can be brought into flow connection with the outside flow contour. The at least one valve element is arranged within the at least one housing part in such a way that the outside flow contour is brought into flow connection with the at least one flow passage. Thus, a medium flowing in through the flow passage can flow into the outside flow contour and from there into the control contour of the valve element. By turning the valve element with its control contour can be brought into flow connection with at least one transfer contour for the medium to flow over into at least one of the collecting lines. Likewise, the reverse flow path 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 outside flow contour and from this into the at least one further flow passage is possible, in order to transfer the medium through this again from the mass flow control device to flow out. The flow directions of the flowing medium can be the same or different for the individual flow passages and for each of the valve elements of the mass flow control device, thus the flow passages can be used both for the flow of medium into the mass flow control device and for the flow of medium out of 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 separated or connectable or connected to one another in the axial direction, in particular three housing parts that are or are tightly connected to one another in a form-fitting or material-fit manner. The housing can thus have a modular structure. If only one housing part is mentioned in the following, this includes both the design as a housing composed 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 at least one of the flow passages of the housing or housing part or are flow-connected or can be brought into flow connection with this. 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 in the interior of the housing or the at least one housing part, the at least one transfer contour is positioned so that it can be brought into flow connection with its control contour arranged on the outside when the valve element is rotated. This makes it possible, for example, for the medium to pass 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 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 this 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 outside flow contour and from there there through at least one flow passage out of the housing or the at least one housing part of this again out of the mass flow control device.

The at least one transfer contour can be designed, 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 axial channel extending in the longitudinal direction of the at least one housing part. In particular, protruding radially outward from this, at least one connection piece, which is connected to the flow passage of the axial channel is fluidly connected to be arranged. 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 of the at least one housing part of the mass flow control device, but rather is integrated into it. A unit comprising the at least one housing part and the at least one collecting line is thus advantageously provided. This makes it possible, in particular, to create a compact unit and, via the collecting line (s), to couple valve elements driven separately from one another by different actuators with respect to the flow of medium flowing out of or into them. When two actuators are provided, the flow outlets of at least two valve elements that can be controlled separately by the two actuators can thus be or become 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 the control contour which is in flow connection with this. On the one hand, the control contour can, for example, flow-connect two transfer contours and thus the collecting lines and flow passages which are in flow connection with them for the inflow or outflow of medium into / out of the mass flow control device. On the other hand, the control contour can increase the switching possibilities when there is a freewheel between two or more valve elements 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, for example essentially T-shaped, double-T-shaped, Y-shaped, triangular, pear-shaped or designed in another shape. By providing the wider section, on the one hand, the flow connection of at least two transfer contours is possible; on the other hand, a longitudinal extension of the control contour required for freewheeling between two valve elements can be created according to the angle of rotation of one valve element relative to the other. If the control contour is, for example, essentially T-shaped, it has two comparatively short sub-channels that are approximately perpendicular to one another, a web-shaped and a transverse channel. The bar-shaped channel serves to connect the transverse channel, which is approximately parallel to the outside flow contour, in particular the circumferential groove, to the latter, the transverse channel with the bar-shaped channel forming the aforementioned T-shape. As already mentioned, other shapes are also possible, such as a Y-shape, in which the wider section is also the upper V-shaped part of the “Y” and the narrower the lower part of the “Y”.

The outside flow contour 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 centrally on the outside of the valve element and to extend from this control contours on both sides, in flow connection with the outside flow contour arranged in between. The outside flow contour and the at least one control contour can therefore form, for example, a double T shape, with T-shaped control contours adjoining the outside flow contour on both sides. Furthermore, it is possible that several control contours are 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 the valve element is rotated relative to the housing part, a flow connection between the flow contour or groove on the outside and the flow passage for the medium can always be established. The at least one control contour of a respective valve element is brought into overlap in a targeted manner by rotating the valve element within the housing part with the at least one transfer contour or, for example, the transfer contours of two adjacent collecting lines. Accordingly, the valve element with its at least one control contour can be brought into flow connection by rotating the valve element within the housing or the at least one housing part with the various transfer contours of the various manifolds of the housing in order to prevent the passage of medium through the mass flow control device via the valve elements and the manifold to be able to control (s) in a targeted manner. As a result, a number of different medium circuits, such as fluid circuits, can be interconnected in order to control and distribute the medium flow or fluid flow in the fluid system in an application-specifically desired 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 thus be made possible by the mass flow control device, in particular separating and coupling different medium or fluid circuits.

The transfer contours are advantageously arranged in the longitudinal direction of the housing part in the respective plane of the at least one control contour of the respective valve element, which is arranged within the housing part, for example as a through opening in a housing wall of the housing that surrounds the valve elements. The at least one outside flow contour of the respective Accordingly, the valve element is advantageously arranged in the plane of a respective flow passage on the housing part, in particular a connection 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, for example, a line can be connected to the housing part. The same applies to the connecting 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 arranged distributed over the circumference of the housing part. This can be a regular or irregular distribution. In particular, the flow passages are arranged in a plane distributed over the circumference of the housing or of the at least one housing part. For example, five flow passages can be distributed over the circumference of the housing part 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. cooling medium circuits and / or heating medium circuits of a thermal management system of a vehicle, can be connected in a known manner to the corresponding flow passages or the connecting pieces arranged there.

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 connection stubs assigned to them to be arranged in a row adjacent to one another 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 e.g. four flow inlets can then, for example, be flow-connected to the above-mentioned five flow passages, which are distributed over the circumference of the housing, in particular in one plane, via appropriate adjustment of the valve elements in the interior of 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. A valve element or an outside flow contour of the respective valve element is advantageously assigned to each of the flow passages. 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 e.g. two valve elements.

In order to seal the individual valve elements against each other, it proves to be advantageous to provide at least one sealing device on and / or between two valve elements, the at least one sealing device on the one hand to seal the valve elements against each other and on the other hand to seal the valve elements against the housing or at least the a housing part and / or opposite the at least one transfer contour serves in this, wherein a rotation of the valve elements within the housing or the at least one housing part is still made possible. At least one sealing device is thus provided which, on the one hand, enables sealing, but on the other hand, continues to enable rotation of the valve elements within the housing or housing part. For example, protruding sealing rings can be provided on the outside end of the valve elements, which border at least one outside flow contour on the one hand and 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 in each case can be or become drive-connected to an actuator. If only one of the two valve elements is drive-connected to the actuator, it is driven in rotation by the actuator, for example, via a drive shaft and can in particular take the further valve element with it via a connecting shaft or a further drive shaft that is or will be connected to the at least one further valve element. The connecting shaft or further drive shaft can have a polygonal shape in cross section in order to be able to set a certain angular alignment of the two valve elements with respect to one another and to be able to maintain it when rotating.

In order to make it possible for the further valve element to rotate at the same time only in one rotation angle range, it has proven advantageous to provide a freewheel 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 at a standstill and is only taken along by the first valve element after a rotation angle range has been covered and then also rotates. In this way, further degrees of freedom with regard to the switching positions of the valve elements and thus of the mass flow control device can be 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. The second valve element can rotate at the same time take place only after the entrainment contour and the entrainment contour interlock, so before they interlock, the first valve element rotates through a predeterminable angle of rotation without entrainment of 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 assigned to them and drive-connectable or connected to them in the interior of the housing part in order to increase the number of switching positions of the mass flow control device. It is thus possible to arrange an actuator on each of the opposite ends of the housing part, which is in drive connection with a valve element arranged there directly adjacent inside the housing part or with one of the other valve elements arranged inside the housing, and further valve elements that are in turn in drive connection or can be brought into drive connection with the valve elements that can be driven by the actuators, to be arranged in the interior of the housing part. Not only can the valve elements arranged directly adjacent to the actuator be drive-connected directly to the actuator, 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 the driver and driver contour.

For example, in this embodiment, the flow passages can be arranged approximately in the middle of the housing part, viewed in the direction of its longitudinal extent, that is to say 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 this embodiment 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. As a result, the control contour of a valve element can be brought into 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 conveyed by the mass flow control device is possible via the angle of rotation set in each case for the respective valve element. If, for example, four valve elements are arranged inside the housing or the at least one housing part, 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 end of the housing or housing part , whereby 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 their outside, it is sufficient to provide the respective valve elements with the respective sealing device at the end in order to seal them off from the interior of the housing part. The wall extending in the interior of the housing part can therefore serve to guide or 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 manifolds arranged on the outside of the housing part, are arranged on the outside in the area of the inside wall. 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 or become flow-connected to one another via the at least one collecting line. A flow connection of the valve elements, which are otherwise controllable separately from one another, possibly only flanged to one another or arranged in a housing, is thus possible via the at least one collecting line.

In particular, via at least two valve elements which are drive-connected to one another via a freewheel and which are driven by an actuator which can drive both valve elements via a drive shaft which is connected to one of the two valve elements, a targeted flow guidance is provided via the respectively set different angles of rotation of the two valve elements of medium between, from and to the flow passages on the housing or its at least one housing part 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 one-part or multi-part drive shaft can be provided. Both in the form of a one-piece and multi-piece drive shaft, it can extend through a first valve element into at least one second valve element connected to the first valve element to drive the at least one second valve element through the first while providing a freewheel. The one-part or multi-part drive shaft passes through the first valve element, is in drive connection with an actuator and is used to drive the first valve element directly through the actuator and the second valve element through the first, with a freewheel being provided before the second valve element is also driven in rotation will. For this purpose, the one- or multi-part drive shaft can be provided along its longitudinal extension with at least one first driver contour, 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 is provided with at least one driver contour on the at least one can attack to be taken along second valve element. A co-rotation of the second valve element when the first is driven by the actuator can take place after the engagement of the entrainment contour of the drive shaft and the entrainment contour of the second valve element. Before the entrainment contour and the entrainment contour intermesh, 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 medium to flow out of 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, if 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 fluidically connected to one another by the respective collecting line sections of the coupling devices. Since the coupling devices each have at least one manifold section with at least one flow passage, medium can flow into the manifold section of the coupling device from the manifolds of the at least two housing parts adjacent to the respective coupling device and flow out of the mass flow control device through its at least one flow outlet. The respective coupling device can be or will be releasably connected to the adjacent housing parts via the at least one fastening device, such as, for example, locking tabs, the latching lugs on the housing parts and holding 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 is 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 as well as 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 the mass flow control device according to 1 ,
• 4th an exploded view of the mass flow control device according to 1 ,
• 5a and 5b two valve elements according to the invention of the mass flow control device according to 1 or. 4th ,
• 6th a perspective view of a housing part according to the invention of the mass flow control device according to FIG 1 ,
• 7th a front view of the housing part according to 6th ,
• 8th a longitudinal sectional view through the housing part along the line BB 7th ,
• 9 a perspective view of two valve elements to be coupled to one another according to FIG 4th ,
• 10 a perspective view of the housing part according to 6th with a view of its interior and plan 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 ends, wherein two housing parts are provided with coupling devices inserted between them,
• 12th an exploded view of the mass flow control device according to 11 ,
• 13th a perspective view of the mass flow control device according to FIG 11 , in which the actuator is removed at one end, and plan 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 between them,
• 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 FIG 14a ,
• 15a and 15b perspective views of a valve element according to the invention of the mass flow control device according to FIG 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 according to FIG 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 according to FIG 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 according to FIG 1 or 11 with T-shaped control contour as well as outer seal and inner seal,
• 19th a perspective detailed view, partially cut, of the mass flow control device according to 11 with a view of a valve element according to 15a with double-T-shaped control contour,
• 20th a perspective detailed view, partially cut, of the mass flow control device according to 11 with a view of a valve element according to 16a with pear-shaped control contour,
• 21 a perspective detailed view, partially cut, of the mass flow control device according to 11 with a view of the valve element according to 17a with Y-shaped control contour,
• 22nd a perspective detailed view, partially cut, of the mass flow control device according to 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 therefrom and a driver contour,
• 24 a perspective view of part of a multi-part drive shaft according to the invention with a driver portion protruding radially from this,
• 25th a perspective view of a two-part drive shaft according to the invention, comprising two drive shaft parts according to FIG 24 ,
• 26th a perspective view of two coupled valve elements 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 26th , 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 FIG 26th and 27 , Containing the two valve elements and the drive shaft, wherein the second valve element is in a position by about 90 ° relative to the position in 26th and 27 rotated position, and
• 29 a perspective, partially broken view of the arrangement of two valve elements and drive shaft according to FIG 26th in a fourth position of the second valve element and drive shaft.

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

The housing part 2 furthermore has a circumferential housing wall 21 and on their outside 22nd five over the circumference of the housing wall 21 Distributed manifolds in the form of axial channels 23 extending in the longitudinal direction of the housing part 2 extend on. The inner 24 of a respective axial channel 23 is with the inside 25th of the housing part, which the housing wall 21 delimited, via transfer contours 26th flow-connected in the form of through openings.

On the outside 27 the axial channels 23 are on the one hand the locking lugs at each end 20th arranged around the lid-shaped closure elements 5 , 6th with their locking tabs 50 , 60 to be able to lock in there. On the other hand, the five axial channels 23 on their outside 27 one connection piece each 230 , 231 , 232 , 233 , 234 on. These are all arranged approximately in one plane, such as in particular the 1 until 4th and 6th until 8th can be found. As in the 3 and 10 you can see the connecting pieces 230 until 234 via a respective flow passage 235 , 236 , 237 , 238 , 239 with the inside 24 of the respective axial channel 23 flow connected. The flow outlets 235 until 239 are in the embodiment shown in the figures in the form of through openings in the outer wall 240 of a respective axial channel 23 educated. The flow passages 235 , 236 , 237 , 238 , 239 can serve for the outflow of medium or for the inflow of medium. The respective direction of flow of the medium through this can depend on the application in which the mass flow control device is used 1 used, be made dependent.

How further in particular the 1 until 4th as well as 8 can be found on the outside 22nd the housing wall 21 , arranged between two adjacent axial channels 23 , further connecting pieces 241 , 242 , 243 , 244 intended. These are approximately in a line or row in the longitudinal or axial direction of the housing part 2 arranged side by side. The connecting pieces 241 until 244 are with the inside 25th of the housing part 2 via flow passages 245 , 246 , 247 , 248 connected, such as the 3 and 6th as well as 8 and 10 can be seen, as through openings in the housing wall 21 are trained. Each connection piece 241 until 244 is a respective flow passage 245 until 248 assigned. Also the flow passages 235 , 236 , 237 , 238 , 239 can serve for the inflow of medium or for the outflow of medium. The respective direction of flow of the medium through this can depend on the application in which the mass flow control device is used 1 used, be made dependent.

Internally 25th of the housing part 2 that from the housing wall 21 is delimited, such as in particular the exploded view of the mass flow control device 1 in 4th can be seen, four valve elements 7th , 8th , 9 , 10 arranged. One of the valve elements, namely the valve element 7th , is in 5b shown in the detailed view, while the valve element 8th in 5a is shown. The two valve elements 9 and 10 are in 9 to see in detail. All valve elements 7th until 10 have a substantially cylindrical valve body 70 , 80 , 90 , 100 on. The valve elements also have 7th , 8th or. 9 , 10 each an outside 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 or. 102 on. 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 7th , 8th , 9 , 10 enables. The T-shaped groove 72 , 82 , 92 , 102 serves as a control contour around the in the respective circumferential groove 72 , 82 , 92 , 102 flowing medium in the transfer contours 26th to be able to keep flowing. The T-shaped groove 72 , 82 , 92 , 102 thus serves to control the medium flow.

Each of the valve elements 7th , 8th in the 5a and 5b and accordingly also the valve elements 9 , 10 , which can each be designed accordingly as the valve elements 7th , 8th , each have a drive shaft at the end 73 , 83 , 93 , 103 on. On the one hand, the two valve elements 7th , 8th via the drive shaft 83 are drive-coupled to one another, on the other hand via the drive shaft 73 with the first actuator 3 the mass flow control device 1 . The drive shaft 73 thus protrudes in the assembled state, as in the 1 until 3 can be seen through an inner through opening 51 in the lid-shaped closure element 5 through it so that the drive shaft 73 in the first actuator 3 can be introduced and accordingly driven to rotate by this. The lid-shaped closure element 6th is with a corresponding passage opening 61 provided, like the 3 and 4th can be removed so that a drive shaft 93 of the valve element 9 protrude through there and into the second actuator 4th can be introduced in order to be attacked and driven to rotate by this. A drive shaft becomes accordingly 103 of the valve element 10 with the valve element 9 drive-coupled. A coupling via the drive shafts 83 or. 103 takes place in particular only when a fixed alignment of the two valve elements to one another is to be set and maintained. To this end, the two drive shafts point 83 , 103 to connect the two valve elements 7th , 8th and 9 , 10 a polygonal profile in cross section, for example a hexagonal or octagonal profile.

To a freewheel between the respective valve element pairs 7th , 8th or. 9 , 10 to enable, has the valve element 7th or accordingly also the valve element 9 a driver contour 74 or. 94 on that of the drive shaft 73 or. 93 opposite end of the respective valve element 7th or. 9 is arranged. The other valve element 8th or. 10 points on the side facing the valve element 7th or. 9 has a respective entrainment contour 84 or. 104 on. This makes it possible when the respective valve element is driven in rotation 7th or. 9 by the first and second actuators 3 , 4th only this respective valve element 7th , 9 to rotate while initially the respective valve element 8th or. 10 is not rotated. A co-rotation only takes place after a predeterminable angle of rotation range has been covered, if the respective driver contour 74 or. 94 with the respective driving contour 84 or. 104 comes into engagement and thus the respective valve element 8th or. 10 turns. This makes it possible to provide numerous different flow circuits, each of which has individual flow passages 245 until 248 with individual flow passages 235 until 239 can be flow connected. Even if a freewheel is provided, however, in order to use identical parts to save costs, the drive shafts 83 or. 103 on the valve elements 8th , 10 are nevertheless provided, which are then of no further importance for the freewheel variants. Furthermore, the respective drive shaft 73 , 93 also from the respective actuator 3 , 4th in the respective valve element 7th , 9 or the valve elements 8th , 10 enough to drive them. The valve elements 7th , 9 would then, over the driver and driver contours 74 , 84 , 94 , 104 which, however, would 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 then the contours 84 , 104 would be.

In 9 are the two valve elements 9 , 10 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 control different flow passages and to be able to supply them with medium. In 9 is therefore only the T-shaped groove 102 to see. Furthermore, both are circumferential grooves 91 , 101 as well as driver contour 94 and driving contour 104 to see, but also the two drive shafts 93 , 103 , with the drive shaft 103 when 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 is inoperative.

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

Between the two not directly with one of the actuators 3 , 4th coupled valve elements 8th , 10 is a wall provided with an inner opening 29 internally 25th of the housing part 2 arranged. This has an inner through opening 129 on. The wall 29 can be used to guide or support the respective inside 25th of the housing part 2 arranged valve elements 8th , 10 as well as to increase the stability of the housing part 2 just in the plane in which the connecting pieces 230 until 234 are arranged to serve.

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

Instead of the 1 until 10 four flow passages shown in series 245 until 248 and five in a plane around the circumference of the housing part 2 arranged around flow passages 235 until 239 Of course, more or fewer flow passages can also be used for the inflow and outflow of medium into or out of the mass flow control device 1 are provided. Advantageously, each flow passage is assigned a respective valve element with its outside flow contour, such as the circumferential groove, only one circumferential groove only over a circumferential section or another outside flow contour that enables medium to flow on the outside of the respective valve element. Instead of the formation of a groove, a different shape of the outside flow contour can also be selected, which accordingly enables a flow of medium. Instead of the T-shape of the control contour, another shape can be selected that enables a targeted controlled inflow of medium from the circumferential groove or the outside flow contour of the respective valve element into a respective transfer contour that leads into a respective collecting line. There is thus at least partial flow around the valve elements, but no flow through them with medium in the case of the mass flow control device 1 intended. This enables faster and more targeted control of media flows. Furthermore, a very compact and stable design of the mass flow control device is possible. Instead of two actuators, it is also possible to provide only one actuator which, for example, drives more than two valve elements, it being possible for a respective freewheel to be provided between each two valve elements.

In the 11 until 13th is a further embodiment of the mass flow control device 1 shown. In this embodiment variant, it has one of two housing parts, a first housing part 2a and a second housing part 2 B , formed housing. The two housing parts are at their opposite ends 2a and 2 B as in the embodiment according to 1 , with the first actuator 3 and the second actuator 4th Mistake. In contrast to the embodiment according to FIG 1 are flow passages 235 until 239 and with these flow-connected connecting pieces 230 until 234 not along the collecting lines or axial ducts 23 arranged, but separate coupling devices 300 between the respective collecting lines or axial channels 23 of the two housing parts 2a and 2 B intended. The coupling devices 300 each have a manifold section 323 on that between the adjacent manifolds or axial channels 23 of the two housing parts 2a and 2 B is inserted in order to establish a flow connection between the manifolds or axial ducts 23 of the two housing parts 2a , 2 B to be provided. This can in particular the 11 and 13th can be removed particularly well.

The respective coupling device 300 has apart from the manifold section 323 a connection piece 330 on. To provide a flow connection between the interior of the manifold section 323 and the inner cavity of the respective connection piece 330 to be able to manufacture is in the manifold section 323 a flow passage (not shown in the figures) for flow connecting the inner cavity of the manifold section 323 and the inner cavity of the connecting piece 330 intended. Furthermore, the coupling device 300 two locking tabs 350 , 351 on. These are used to connect the coupling devices 300 with the two housing parts 2a and 2 B , the housing parts 2a and 2 B , similar to the case part 2 according to 1 , in the area of the respective collecting lines or axial channels 323 each end, on the outside of these, with locking lugs 20th are provided. The locking tabs 350 , 351 can at the locking lugs 20th on the collecting lines or axial ducts 23 of the two adjacent housing parts 2a and 2 B , like in particular the 11 and 13th can be removed particularly well, be locked. The locking lugs 20th , each in the end area of the housing parts 2a and 2 B are arranged, can best be the exploded view of the mass flow control device 1 in 12th can be removed.

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

As in particular the exploded view in 12th can be removed, has the respective manifold section 323 to enable a sealed connection with the manifolds or axial ducts 23 of the two adjacent housing parts 2a and 2 B each end protruding and into the manifolds 23 the housing parts 2a and 2 B engaging connecting portions 322 , 324 on. In the area of the connecting sections 322 , 324 Sealing elements can be arranged for further sealing.

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

In the 14a until 18b are different design variants for the valve elements 307 , 308 or. 309 , 310 shown, each 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 according to FIGS. 14a and 14b, the control contour is 380 Double-T-shaped, also in the variant according to 15a and 15b . In the variant according to 16a and 16b is the shape of the control contour 380 pear-shaped, in the variant according to 17a and 17b Yf shaped and in the variant according to 18a and 18b pl shaped. Of course, there are also other shapes of the control contour 380 possible.

In the 19th until 22nd are the different design variants of valve elements that are included 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 of this, shown. In 19th is the valve element 307 with the double-T-shaped control contour 380 like them in the 14a , 14b and 15a , 15b is shown to be seen in 20th 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 they do for the valve element 307 in the 17a and 17b is shown, and in 22nd the T-shaped control contour 380 as they do for the valve element 307 in the 18a and 18b is shown. In the 19th until 22nd is in each case a part of the housing part 2a shown broken to on the respective valve element 307 to see and here in particular its respective control contour 380 . It can be seen here that the control contour of the valve elements 307 is positioned so that it has the transfer contours or through openings 26th a respective collecting line or a respective axial channel 23 can flow connect. The respective control contour 380 fluidically connects two adjacent collecting lines or axial channels 23 of the housing part 2a the mass flow control device 1 together.

The ones in the 14a until 18b valve elements shown 307 , 308 and the valve elements 309 , 310 , which can be designed accordingly, each have a circumferential groove 381 as a flow contour that corresponds to the respective control contour 380 is in flow communication, a cylindrical valve body 382 and two spaced apart sealing contours 383 , 384 with a circumferential groove in between 385 for inserting an outer seal in the form of a sealing ring 390 on how he in particular 14a and 18a , 18b can be taken. Also inside the respective valve element 307 , 308 or. 309 , 310 (not shown) can be an inner seal 391 be arranged as this is an example 18a can be removed particularly well. The inner seal 391 serves to seal against a drive shaft 360 passing through the valve elements 307 , 308 or. 309 , 310 is passed through, such as this 28 can be taken.

Like that 14a , 14b as can also be seen from 16a and 17a, the valve elements 307 , 308 or. 309 , 310 inside at the level of the circumferential groove on the outside 381 or flow contour or in the transition to the sealing contour 383 a segment-shaped opening in the area of the end face of the respective valve element 386 and opposite to this a segment-shaped element 387 on. The segment-shaped element 387 cantilevered on the front side of the respective valve element 307 , 308 or. 309 , 310 inside of these before. The segment-shaped opening 386 and the segment-shaped element 387 serve to drive the valve elements in rotation 307 , 308 or. 309 , 310 via the respective drive shaft 360 by the respective actuators 3 , 4th is operated.

Instead of a drive shaft formed on each of the valve elements, as is the case with the valve elements 7th , 8th , 9 , 10 is the case, are for actuating the valve elements 307 , 308 or. 309 , 310 two drive shafts 360 intended. Such drive shaft 360 is the detailed view in 23 refer to. This is in the in 23 The embodiment variant shown is designed in one piece and has a polygonal section at one end 361 on that in the first actuator 3 or the second actuator 4th guided in and drive-coupled with this, thus driven in rotation by this. Adjacent to the polygonal section 361 is an annular protruding stop 362 on the outside of the drive shaft 360 arranged or formed. At a distance from this is a protruding plate-like section 363 provided, the one segment recess 364 has as a driving contour. This is used to engage a corresponding segment-shaped element 387 of a respective valve element 307 or. 309 to the valve element 307 or. 309 actuate, i.e. by the respective actuator 3 or. 4th to be able to rotate.

Spaced from the plate-like section 363 is a segment-shaped projecting driver section 365 also on the outside of the drive shaft 360 educated. This segment-shaped driver section 365 serves to drive the two valve elements in rotation 308 , 310 after going through a freewheel. The drive shaft 360 makes it possible via the driver section 365 , the respective valve element 308 or. 310 to drive with freewheel, like this the 26th until 29 can be removed particularly well. 26th 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 the drive shaft 360 . Will the drive shaft 360 by the actuator 3 driven in rotation, it takes the valve element accordingly 307 due to the engagement of the driving contour 387 into the segment recess 364 of the plate-shaped section 363 the drive shaft 360 with. The control contour 380 can accordingly be flow-connected with the corresponding transfer contours or through openings 26th and thus collecting lines or axial channels 23 of the housing part 2a (please refer 19th until 22nd ).

In 27 is a second position of the valve element 307 and the drive shaft 360 to see the segment-shaped element 387 of the valve element 307 no longer in the segment recess 364 of the plate-shaped section 363 the drive shaft 360 intervenes. The driver section 365 the drive shaft 360 is in the in 27 position shown also out of engagement with the valve element 308 so this from the drive shaft 360 or the actuator to be connected to this 3 is not driven in rotation, thus not with the valve element 307 is twisted together.

In the in 28 Positioning of the drive shaft shown 360 and the two valve elements 307 and 308 is the positioning of the valve element 307 the same as in 27 . The valve element 308 however, has been compared to the positioning in the 26th and 27 opposite the valve element 307 by actuation via the driver section 365 the drive shaft 360 twisted. The driver section 365 thereby engages the segment-shaped element 387 of the valve element 308 on or has according to 28 attacked on this, since in the in 28 shown broken representation of the driver section 365 again out of engagement with the segment-shaped element 387 as the entrainment contour of the valve element 308 stands.

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

Comparing the 26th until 29 it can therefore be seen on the one hand that the drive shaft 360 through both valve elements 307 , 308 extends or through both valve elements 309 , 310 through, and that driving each of the actuator 3 or. 4th removed valve element 308 or. 310 with freewheel is possible, thus through the drive shaft 360 the valve element 308 or. 310 can be operated with freewheel, so not automatically when turning the valve element 307 or. 309 rotates with the respective valve element through the drive shaft 307 or. 309 by the respective actuator 3 or. 4th is operated.

Instead of a one-piece or one-piece drive shaft 360 as in 23 and in the 26th until 29 is shown by way of example, a multi-part, for example two-part drive shaft 460 as in 25th is shown. The drive shaft 460 consists of two particularly identical drive shaft parts 461 , 462 . These are plugged into each other at the ends, as in 25th to see. Each of the two drive shaft parts 461 , 462 accordingly has a polygonal section at the end 463 and a cylindrical hollow body portion 464 on. About a non-rotatable plugging into one another and correspondingly turning of the drive shaft part 462 when driving the drive shaft part 461 to enable is the cylindrical hollow body portion 464 advantageously also with an opposite shape to the outer shape of the polygonal section 463 shaped, this positively receiving, polygonal shape provided in its inner cavity. The polygonal section 463 of the drive shaft part 462 engages the cylindrical hollow body portion 464 of the drive shaft part 461 form-fitting so that I can post the two-part drive shaft 25th results.

The two drive shaft parts 461 , 462 show except for the polygonal section 463 each with a circumferential collar 465 with a segment section protruding from this 466 on. After joining or plugging the two drive shaft parts 461 , 462 are the two segment sections 466 on these in the longitudinal direction of the resulting two-part or two-part drive shaft 460 arranged offset from one another at an angle, such as in particular 25th can be taken. Also the segment recess 364 and the driver section 365 on the one-piece or one-piece drive shaft 360 according to 23 are arranged offset from one another at an angle in the longitudinal direction, in order to free-wheel the valve element removed from the actuator 308 or. 310 to enable. The segment sections are also corresponding 466 on the drive shaft parts 461 , 462 arranged offset to one another by an angle. The segment sections 466 on the two drive shaft parts 461 , 462 in turn serve to interact with entrainment contours on the respective valve elements 307 , 308 or. 309 , 310 .

Except for a two-part drive shaft 460 The drive shaft can also comprise more than two drive shaft parts, thus 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 within the housing or housing parts 2a , 2 B the mass flow control device 1 are or should be arranged. About the staggered segment sections 466 on the individual drive shaft parts of the drive shaft plugged together in such a form 460 is then on the one hand a rotary drive of the first drive shaft part, which is via its polygonal section 463 with the actuator 3 or. 4th is engaged, possible. Freewheeling over the other segment sections 466 On the other hand, on the other drive shaft parts, there is a rotary drive of the further valve element or elements which are connected to the first valve element, for example the valve element 307 or. 309 , plugged or joined together, possible with freewheel.

In addition to the embodiments of a mass flow control device described above and shown in the exemplary embodiment for controlling mass flows in a medium distribution system, numerous others can be provided in which at least one housing with at least one housing part, at least one actuator, at least one rotatable within the at least one housing part arranged valve element and at least two flow passages are provided, of which at least one is used for the inflow of medium into the mass flow control device and at least one for the outflow of the medium therefrom, the at least one actuator for driving one of the valve elements, i.e. for adjusting its rotational positions within the Housing part, can be provided and drive-coupled thereto, the housing part in the direction of its longitudinal extension at least one collecting line which can be flow-connected or combined with flow outlets 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 the medium to flow around and at least one control contour that can be flow-connected or flow-connected to the outside flow contour, the outside flow contour being able to 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 communication.

List of reference symbols

1

Mass flow control device

2

Housing part

2a

first housing part

2 B

second housing part

3

first actuator

4th

second actuator

5

lid-shaped closure element

6th

lid-shaped closure element

7th

Valve element

8th

Valve element

9

Valve element

10

Valve element

20th

Locking lug

21

Housing wall

22nd

Outside

23

Collective line / axial channel

24

Interior of 23

25th

Inside of 2

26th

Transfer contour / through opening

27

Outside

28

inside

29

Wall

50

Locking tab

51

Through opening

60

Locking tab

61

Through opening

70

cylindrical valve body

71

circumferential groove

72

T-shaped groove

73

drive shaft

74

Driver 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

Driver 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

Connection piece

231

Connection piece

232

Connection piece

233

Connection piece

234

Connection piece

235

Flow passage

236

Flow passage

237

Flow passage

238

Flow passage

239

Flow passage

240

Outer wall of 23

241

Connection piece

242

Connection piece

243

Connection piece

244

Connection 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

Connection piece

350

Locking tab

351

Locking tab

360

drive shaft

361

Polygonal section

362

annular stop

363

plate-like section

364

Segment recess

365

Driver 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

Drive shaft part

462

Drive shaft part

463

Polygonal section

464

cylindrical hollow body section

465

collar

466

Segment section

QUOTES INCLUDED IN THE DESCRIPTION

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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) ) rotatably arrangeable 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 is used for the inflow of medium into the mass flow control device (1) and at least one for the outflow of the medium therefrom, the at least one actuator (3, 4) to the at least one valve element (7, 8, 9, 10, 307, 308, 309, 310) can be coupled or coupled for the rotary 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) is provided, 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, 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 outside flow contour (71, 81, 91, 101, 381) and with at least one control contour (72, 82, 92, 102, 380) which can be or is connected to this flow, the outside flow contour (71, 81 , 91, 101, 381) can be brought into 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 stands. Mass flow control device (1) according to 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 with 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) which can be brought into flow connection or is standing with this. Mass flow control device (1) according to 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, Is 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 arranged distributed, in particular five flow passages (235, 236, 237, 238, 239) are arranged 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) are, in particular two to four flow passages (245, 246, 247, 248) are arranged in series adjacent to one another in the longitudinal direction 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 at least one sealing device (75, 76, 77, 85, 86, 87, 95, 96, 97, 105, 106, 107, 390, 391) on and / or between two valve elements (7, 8, 9, 10, 307, 308, 309, 310) is provided for sealing the valve elements (7, 8, 9, 10, 307, 308, 309, 310) against each other and with respect to the housing or the at least one housing part (2, 2a, 2b) and / or opposite the at least one transfer contour (26) and / or the at least a drive shaft (360, 460), allowing the valve elements (7, 8, 9, 10, 307, 308, 309, 310) to rotate 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 two valve elements (7, 8, 9, 10, 307, 308, 309, 310) can be drive-connected or connected to the actuator (3, 4) and a freewheel between at least two valve elements (7, 8, 9, 10, 307, 308, 309, 310) is provided. Mass flow control device (1) according to one of the preceding claims, characterized in that at least one one-part or multi-part drive shaft (360, 460) is provided which extends through a first valve element (307, 309) into at least a second, with the first valve element (307, 309) connected valve element (308, 310) extends in for driving the at least one second valve element (308, 310) through the first while providing a freewheel. 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) according to 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 flow into it and at least one fastening device (350, 351) for fastening the at least one Has 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 arranged at opposite ends of the housing or of the at least one housing part (2, 2a, 2b) or of mutually coupled housing parts (2a, 2b) a number of valve elements (7, 8, 9, 10, 307, 308, 309, 310) assigned to them and drivably connected to them are provided in the interior (25) of the housing or of the at least one housing part (2, 2a, 2b) are to increase 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 which at least one collecting line (23) can be or are flow-connected to one another.

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