DE102019219294B4 - throttle valve arrangement - Google Patents

Abstract

Throttle valve arrangement (1) for influencing a fluid flow, with a throttle valve (2) which has a valve housing (20) through which a fluid channel (8) extends, which extends between an inlet connection (6) and an outlet connection (7), wherein a throttle section (60) is formed in the fluid channel (8), into which a variable-position throttle member (46) protrudes, which with the throttle section (60) delimits a throttle cross-section (62) variable between a first cross-sectional area and a second cross-sectional area, and the one Has a drive device (29, 35) which is coupled to the throttle member (46) and which is designed to provide a relative movement of the throttle member (46) with respect to the throttle section (60) along a movement axis (42) as a function of an electrical control signal, and which has a control device (25) which is electrically coupled to the drive device (29, 35) and which is used for calculating The electrical control signal is sent to the drive device (29, 35) as a function, in particular exclusively, of a throttle signal from a higher-level controller or an input device (13), the control device (25) having a communication connection (15) which is used to receive a throttle signal from a higher-level controller and/or from an input device (13), with the inlet connection (6) or the outlet connection (7) of the throttle valve (2) being assigned a flow sensor (3) which is used to determine a fluid flow through the fluid channel (8) and which is accommodated in a sensor housing (19), the flow sensor (3) being electrically connected to the control device (25) and being designed to provide a flow signal to the control device (25), the control device ( 25) includes a controller from the group: two-point controller, setpoint/actual value controller, which is for a provision of the electrical control signal to the drive device (29, 35) as a function of a deviation between the flow rate signal and the throttle signal and wherein the flow rate sensor (3) is embodied as a thermal anemometer and/or wherein the flow rate sensor (3) has a display device (14 ) for displaying a determined flow signal and/or that the flow sensor (3) has an input device (13) for inputting a throttle value, which is provided as a throttle signal to the control device (25).

Description

The invention relates to a throttle valve arrangement for influencing a fluid flow.

A throttle valve arrangement is known from the prior art, in which a manually adjustable throttle valve is combined with a flow sensor, so that a fluid flow can be adjusted by a user by manually actuating the throttle valve depending on a flow value that can be determined using the flow sensor , can be done.

From the DE 10 2017 110 343 A1 a linear actuator of composite construction and shaft is known. The composite construction supports the linear actuator. The shank includes a locking element for moving against a reference surface and is coupled to the composite structure via a coupling member in a coupling plane. The shank includes a compensating element which has a coefficient of linear expansion and a length such that the compensating element at least partially compensates for differences in the thermal expansion of the composite structure from the reference surface to the coupling plane and the thermal expansion of a combination of the coupling member and the closure element. The associated thermal expansion of the sum of products of the respective coefficient of linear expansion and the respective length of the compensating element, the closure element and the coupling element essentially corresponds to the thermal expansion of the composite structure.

the DE 10 2015 111 222 A1 discloses a load-compensated proportional throttle valve with an electromagnetic actuating device has a main piston which is guided in a housing bore so as to be longitudinally displaceable and which, by means of a sealing section interacting with a sealing seat, forms a blocking device which controls a transfer of a fluid between a fluid inlet and a fluid outlet. The main piston can be acted upon on an end face with a pilot pressure in a pilot chamber, the pilot chamber being connected to the fluid inlet via a throttle and being able to be connected to the fluid outlet via a relief bore that runs axially within the main piston and is controlled by the actuating device . In this case, an actuating movement of the electromagnetic actuating device should be transmitted at least indirectly mechanically to the main piston, with an annular throttle gap formed by sections of the lateral surfaces of the main piston and a valve housing surrounding it or a valve insert arranged in this adjoining the blocking device in the direction of the fluid outlet, and with the Sections of the lateral surfaces extend towards one another in such a way that a cross-sectional area of the throttle gap increases essentially continuously during a longitudinal movement of the main piston in the direction of its open position.

the DE 10 2007 000 217 A1 discloses a fluid control valve having a housing defining a fluid passage therein, and having a valve member for controlling fluid flow in the fluid passage by connecting or blocking the fluid passage, and a protective member press-fitted into the housing to protect the housing to protect against heat of the fluid flow in the fluid channel. The case is formed by die-casting an aluminum material. The protection element and a wall surface defining the fluid passage in the housing define therebetween a thermal insulation layer for limiting heat transfer of the fluid flow from the protection element to the housing.

the DE 603 06 320 T2 discloses a flow sensor that includes a mounting plate, a flexure plate, and a measurement assembly. The mounting plate is attached to an inner surface of an air hose. The mounting plate is flexibly coupled to the flex plate, which is displaced in response to gas flow. The sensing assembly is positioned on the flexplate and includes a temperature sensor for sensing relatively low flow rates during a thermal mode and one or more displacement sensors for sensing relatively high flow rates during a displacement mode. The temperature sensor outputs a thermal mode signal and the displacement sensors output a displacement mode signal. A flow sensing system includes the flow sensor, a processor, memory, and a computer. The processor responds to the thermal and displacement mode signals. The computer is coupled to the processor and controls the calibration of the flow sensor.

The object of the invention is to provide a throttle valve arrangement with an expanded range of functions.

This object is achieved for a throttle valve arrangement of the type mentioned with the features of claim 1.

The throttle valve arrangement has a throttle valve with a valve housing through which a fluid channel extends between an inlet connection and an outlet end, with a throttle section being formed in the fluid channel, into which a position-variable throttle member protrudes, which with the throttle section delimits a throttle cross-section that is variable between a first cross-sectional area and a second cross-sectional area, in particular always different from zero, with the throttle member being coupled to a drive device , which is designed to provide a relative movement of the throttle member with respect to the throttle section along a movement axis as a function of an electrical control signal, and wherein a control device which is electrically coupled to the drive device and which is used to provide the electrical control signal to the drive device in, in particular exclusively , Depending on a throttle signal of a higher-level controller or an input means is formed, is provided, wherein the control device has a communication port which is designed to receive a throttle signal from a higher-level controller and/or from an input means.

The fluid channel is provided for transporting a pressurized fluid, in particular compressed air, and extends through the valve housing between an inlet connection, which can be designed for coupling a fluid hose, and an outlet connection, which can also be designed for connecting a fluid hose. For example, the valve housing is cuboid and the inlet connection is arranged on a first outer surface of the valve housing, which faces away from a second outer surface of the valve housing, on which the outlet connection is arranged. For example, apart from the throttle section, the fluid channel has a constant cross section. In order to provide a throttle function, a throttle section is formed in the fluid channel, which is provided with a throttle bore, which preferably has a smaller cross section than the rest of the fluid channel and into which a variable-position throttle member protrudes. The throttling element is designed in such a way that it delimits a cross-sectional area in the throttling section with the throttling bore, which can be adjusted depending on a positioning of the throttling element and is in particular circular in shape, which is also referred to as the throttling cross-section. By way of example, it is provided that the throttle member with the throttle section in a first position delimits a first non-zero cross-sectional area through which a pressurized fluid can flow with an exactly predictable first volume flow. Furthermore, after a change in the position of the throttle member, a second cross-sectional area can be provided between the throttle member and the throttle section, which is in particular different from zero and which is, for example, larger than the first cross-sectional area, so that at constant fluid pressure the pressurized fluid has a larger, in particular precisely predictable , Second volume flow can flow through the throttle cross section.

In order to be able to change the position of the throttle member, a drive device is provided which is coupled to the throttle member and which is designed to provide a relative movement of the throttle member with respect to the throttle section along a movement axis. The change in position of the throttle element takes place here by means of an electrical activation of the drive device by means of an electrical control signal, so that no manual intervention by a user is required for this. It is provided that the electrical control signal is provided by a control device that is electrically coupled to the drive device. The control device can include, for example, a microcontroller or microprocessor and an electrical output stage for providing electrical currents for the drive device and is designed to process a throttle signal into an electrical control signal. The throttle signal is made available by a higher-level controller or by an input device. For this purpose, the control device is assigned a communication connection, which is designed to receive a throttle signal. Provision is preferably made for the control device to determine and make available the electrical control signal for the drive device exclusively as a function of the throttle signal. It is particularly preferably provided that the control device does not require any signals from sensors that are assigned to the drive device or the fluid channel in order to determine the control signal and provide it to the drive device. This ensures a simple construction for the throttle valve arrangement.

It is expedient if the drive device is designed to provide a linear movement of the throttle element relative to the throttle section and/or if an input means for inputting a throttle signal is connected to the communication connection. It is provided that the linear relative movement of the throttle member takes place along the axis of movement, whereby a precise adjustment of the cross-sectional area between the throttle member and the throttle section can be effected. In addition or as an alternative, it is provided that a throttle signal can be input by a user with the aid of an input means that is electrically connected to the communication port. The input means it can be example may be one or more buttons that can be actuated by the user to make an adjustment to the throttle signal.

In a development of the invention, it is provided that the drive device comprises an electric motor electrically coupled to the control device and a gear device coupled to the electric motor, in particular designed as a multi-stage wheel gear, which is used to reduce a rotational movement of a drive shaft of the electric motor into the relative movement of the throttle member the valve housing is formed. By configuring the drive device with an electric motor, which can be designed as a brush motor or as a brushless motor for synchronous or asynchronous operation, and with a gear device, a cost-effective introduction of movement to the throttle element that is precise with regard to the positioning of the throttle element can be implemented. The electric motor can optionally be designed for a continuous rotational movement of a drive shaft to provide the relative movement of the throttle member or in the manner of a stepping motor for a step-by-step rotational movement of the drive shaft. The task of the transmission device is to reduce the rotational movement of the drive shaft so that a large number of revolutions of the drive shaft of the electric motor is reduced to a small number of revolutions of an output gear element, in particular an output gear wheel or an output shaft, of the transmission device. Furthermore, it can be provided that the transmission device is designed to convert the rotational movement of the drive shaft into a linear movement.

It is particularly preferred for this purpose that the transmission device comprises a threaded drive with a spindle nut and a threaded spindle, the threaded spindle being coupled to the throttle element and being accommodated on the valve housing in a rotationally fixed and linearly movable manner. Here, the spindle nut forms the output gear wheel of the transmission device, which is provided with teeth on an outer circumference, for example, which are designed for coupling to a gear train of the transmission device and which has a threaded bore penetrating it, in which a threaded spindle is accommodated. The threaded spindle is in turn mounted on the valve housing in a linearly movable and non-rotatable manner, so that a linear movement of the threaded spindle occurs when the spindle nut rotates.

It is advantageous if the gear mechanism is designed to be self-locking. With a self-locking design of the transmission device, it is ensured that only a movement of the drive shaft of the electric motor can lead to a movement of the throttle member relative to the valve housing: On the other hand, a force acting on the throttle member is prevented from causing a rotary movement of the drive shaft of the electric motor and thus to an undesirable Adjustment of the throttle member leads. Accordingly, it is ensured that when the electric motor is switched off or otherwise absent, in particular in the event of a power failure, there is no undesired change in the position of the throttle member and thus no undesired influence on the throttle effect of the throttle valve arrangement.

According to the invention, a flow sensor is assigned to the input connection or the output connection, which flow sensor is designed to determine a fluid flow through the fluid channel, the flow sensor being electrically connected to the control device and being designed to provide a flow signal to the control device. The flow sensor can be mounted, for example, on the inlet connection or on the outlet connection of the valve housing and communicates with the control device via the communication connection. In this case, the flow sensor can, for example, provide an analog voltage signal or an analog current signal or a signal according to the IO-Link protocol to the control device. For its part, the control device can be designed to process the flow signal and, for example, within the scope of this processing, to carry out a comparison between the flow signal and the throttle signal, which was provided by a higher-level controller or by an input means, in order to possibly derive an activation of the drive device from this.

According to the invention, the control device comprises a controller from the group: two-point controller, setpoint/actual value controller, which is designed to provide the electrical control signal to the drive device depending on a deviation between the flow signal and the throttle signal. A two-point controller determines whether an actual value, for example the volume flow of the fluid determined using the flow signal from the flow sensor, is below or above a setpoint value, for example the throttle value. If the actual value is below the setpoint value, the drive device can be activated briefly in such a way that the throttle cross section is increased by a predeterminable amount, for example by a predeterminable percentage. This process is repeated until the actual value is equal to or greater than the setpoint. If the actual value is above the setpoint value, a brief activation of the drive device can be provided in this way be assumed that the throttle cross section is reduced by a predetermined amount, for example by a predetermined percentage. This process is repeated until the actual value is equal to or less than the setpoint. Thus, a cyclically recurring control of the drive device takes place, with only a very small amount of computing power being required in the control device due to the use of the two-point controller and a very rapid reaction to deviations between the actual value and the desired value being possible.

Alternatively, a target/actual value controller is provided, in which a continuous comparison of the actual value with the target value is carried out in order to generate a control signal for continuous activation of the drive device.

Furthermore, the invention provides that the flow sensor is designed as a thermal anemometer and/or that the flow sensor comprises a display device for displaying a determined flow signal and/or that the flow sensor comprises an input device for inputting a throttle value, which is provided as a throttle signal to the control device will. In an embodiment of the flow sensor as a thermal anemometer, it can be provided that an electrical resistance of the heating wire provided, for example, in the thermal anemometer, which is dependent on the temperature and the volume flow of the flowing fluid, is made available directly to the control device as an analog signal, so that no complex processing of the flow signal is required is. A display device assigned to the flow sensor, which can be designed for an analog or digital display of a determined flow signal, allows a user to set the throttle cross section between the throttle member and throttle section via an additional input device. It is particularly advantageous here if the flow sensor has an input device that enables a throttle value to be entered, which is then provided as a throttle signal via the communication connection to the control device.

• 1 eine streng schematische Vorderansicht einer Drosselventilanordnung mit einem Drosselventil, an dem ein Durchflussensor angekoppelt ist, und
• 2 eine streng schematische Schnittdarstellung des Drosselventils gemäß der 1.

An advantageous embodiment of the invention is shown in the drawing. This shows:

• 1 a strictly schematic front view of a throttle valve assembly with a throttle valve to which a flow sensor is coupled, and
• 2 a strictly schematic sectional view of the throttle valve according to 1 .

one in the 1 The throttle valve arrangement 1 shown purely schematically comprises a throttle valve 2 and a flow sensor 3 coupled to the throttle valve 2. The throttle valve 2 and the flow sensor 3 are connected to one another in a fluidically communicating coupling in such a way that a pressurized fluid first flows through the flow sensor 3 and then through the throttle valve 2 can. For this purpose, the flow sensor 3 includes a fluid connection 4, which is designed for the fluid-tight coupling of a fluid hose 5, only partially shown. The fluid hose 5 can in turn be connected in a fluidly communicating manner at an end region (not shown) to a fluid source (also not shown), for example a compressor or a compressed air reservoir.

It is also provided that the flow sensor 3, which is traversed by a measuring channel, not shown, fluidly communicating with a in the 2 is connected to the input connection 6 of the throttle valve 2 shown in more detail and thus a fluid flow from the fluid hose 5 through the flow sensor 3 to the input connection 6 of the throttle valve 2 can take place. A fluid channel 8 extending between the input port 6 and an output port 7 is formed inside the throttle valve 2 so that the pressurized fluid provided at the input port 6 can exit the throttle valve 2 again at the output port 7 after flowing through the fluid channel 8 .

Furthermore, according to the representation of 1 an electrical input connection 9 is provided on a sensor housing 19 of the flow sensor 3, to which a supply cable 10 can be connected, which can be connected to an electrical energy source, not shown in detail, and which is designed to provide electrical supply energy to the flow sensor 3. Furthermore, the flow sensor 3 includes an electrical output connection 11 via which, purely by way of example, both an electrical supply voltage and a flow signal can be provided to a sensor cable 12 , which in turn is connected to a communication connection 15 of the throttle valve 2 . Accordingly, both an electrical supply to the throttle valve 2 and a transmission of flow signals to the throttle valve 2 can be carried out via the sensor cable 12 and the communication connection 15 .

By way of example, it is provided that the flow sensor 3 includes two control buttons 13 and a display 14 , the control buttons 13 being able to be used as input means for a throttle signal which is transmitted from the flow sensor 3 to the throttle valve 2 . The display 14 can display a flow rate through the Flow sensor 3 and/or for an indication of a user set amount for the throttle signal.

As the sectional view of 2 can be removed, the throttle valve 2 comprises a valve housing 20, which is constructed purely by way of example from a housing upper part 21 and a housing lower part 21. For example, the upper housing part 21 and the lower housing part 22 are matched to one another in such a way that the valve housing 20 is cuboid and the inlet connection 6 and the communication connection 15 are arranged on a first side surface 23 of the valve housing 20, while the outlet connection 7 is on one of the first side surfaces 23 facing away second side surface 24 of the valve housing 20 is arranged.

Purely by way of example, it is provided that a control device 25 is arranged in the upper part 21 of the housing, which includes a microprocessor (not shown) and which is electrically connected to the communication connection 15 via a communication line 26 . Electrical supply energy and optionally flow signals from a flow sensor 3 can be supplied to the control device 25 via the communication line 26 .

The control device 25 further includes a control terminal 27 at which, according to the representation of 2 a control cable 28 is connected, which is provided for connecting the control device 25 to an electric motor 29 . Thus, the control device 25 can provide electrical energy to the electric motor 29 via the control connection 27 and the control cable 28 in order to achieve a rotational movement of a drive shaft 30 of the electric motor 29 . For this purpose, the control device 25 includes, in addition to the microcontroller, an electrical output stage (not shown), which enables electrical power to be released to the electric motor 29 as required.

Also arranged in the upper housing part 21 is a gear mechanism 35 which, purely by way of example, is designed as a wheel gear and which is provided for reducing a rotary movement of the drive shaft 30 of the electric motor 29 into a rotary movement of a spindle nut 36 . For example, the transmission device 35 includes a drive gear 37 fixed to the drive shaft 30 of the electric motor 29, which engages in a first intermediate gear 38, which in turn is held in a rotationally fixed manner together with a second intermediate gear 39 on an intermediate shaft 40. The intermediate shaft 40 is rotatably mounted in the upper housing part 21 and in the lower housing part 22 . The second intermediate gear 39 is in turn intended to engage in an external toothing 41 of the spindle nut 36, so that a rotational movement of the drive shaft 30 via the drive gear 37, the first intermediate gear 38, the second intermediate gear 39 and the external toothing 41 results in a rotational movement of the spindle nut 36 a rotation axis 42 leads.

By way of example, it is provided that a threaded spindle 43 passes through a threaded bore, not shown in detail, which is mounted centrally in the spindle nut 36 and coaxially to the axis of rotation 42 . The threaded spindle 43 is provided at an upper end area with a profile section 44, which, purely by way of example, has a rectangular profile along the axis of rotation 40 and which is mounted non-rotatably and linearly movably in a guide recess 45 in the upper housing part 21 that is adapted to the rectangular profiling of the profile section 44. Furthermore, it is provided that the spindle nut 36 is mounted on the upper housing part 21 in a manner that is rotatable and axially immovable in a manner that is not shown in detail. Accordingly, an initiation of a rotational movement on the spindle nut 36 about the axis of rotation 42 leads to an axial displacement of the threaded spindle 43, which is accommodated in the guide recess 45 with the profile section 44 in a rotationally fixed and linearly movable manner.

At a lower end area of the threaded spindle 43, a throttle element 46, designed for example rotationally symmetrical to the axis of rotation 42, is attached, which can thus be displaced linearly along the axis of rotation 42 in the same way as the threaded spindle 43 when the spindle nut 36 and the axis of rotation 42 rotate. The throttle element 40 has a first guide section 45 designed with a circular-cylindrical cross-section and a second guide section 48 adjoining it along the axis of rotation 42 and designed with a circular-cylindrical cross-section. Arranged on an axially aligned end face 49 of the second guide section 48 is a throttle needle 50 which extends along the axis of rotation 42 and is designed in the shape of a cone section, which tapers with increasing distance from the end face 49 .

The throttle member 46 is slidably received in a guide sleeve 54, with a first inner surface 55 of the guide sleeve 54 being adapted to an outer diameter of the first guide section 47, while a second inner surface 56 of the guide sleeve 54 is adapted to an outer diameter of the second guide section 48. An end area 57 of the guide sleeve 54 protrudes into the fluid channel 8 and divides the fluid channel 8 into a first fluid channel section 17 which is connected to the inlet port 6 in fluidic communication and into a second fluid channel section 18 which is connected to the outlet port 7 in fluidic communication. The end region 57 of the guide sleeve 54 is provided with an inflow slot 58 extending transversely to the axis of rotation 42, through which fluid can flow from the first fluid channel section 17 into a recess 59 in the guide sleeve 54 and from there through a throttle bore 61, which is an end wall also referred to as a throttle section 60 of the guide sleeve 54 penetrates in the direction of the axis of rotation 42, can flow into the second fluid channel section 18.

A throttle cross section 63 determined by the throttle bore 61 and the throttle needle 50 can be changed in terms of its cross-sectional area by the axial displacement of the throttle member 46 with the throttle needle 50 attached thereto.

A mode of operation for the throttle valve arrangement 1 can be described purely by way of example as follows: First, a desired volume flow is set by a user using the control buttons 13 on the flow sensor 3, in which case the set volume flow can be displayed numerically by way of example using the display 14. After the entry is complete, the set volumetric flow is provided by the flow sensor 3 as a throttle signal to the control device 25 of the throttle valve 2 . The control device 25, which at this time has no knowledge of the position of the throttle member 46 relative to the throttle bore 61, is now waiting for a first amount of volume flow, which is determined by the flow sensor 3 and transmitted to the control device 25 as a flow signal. As soon as a flow signal is present, the control device 25 can make a comparison with the throttle signal, with the flow signal forming the actual value and the throttle signal forming the target value for the setting of the position of the throttle member 46 that is now taking place. A two-point controller, in particular as a computer program, is preferably configured in the control device 25, which includes a microcontroller or microprocessor. With this two-point controller, the electric motor 29 is now actuated, preferably step by step, by the control device 25 until the actual value (flow rate signal) determined cyclically by the flow sensor 3 and processed by the control device 25 corresponds to the setpoint (throttle signal). In practice, this means that due to a difference that is always to be expected between the actual value and the setpoint value, after each comparison step in the control device, the electric motor 29 is also always activated in a first direction of rotation for the drive shaft 30 or in a second direction of rotation for the drive shaft 30 will. The advantage of such a two-point controller lies in the simple programming of the controller and in the short reaction time as well as in the low computing requirements for the controller.

Claims (8)

Throttle valve arrangement (1) for influencing a fluid flow, with a throttle valve (2) which has a valve housing (20) through which a fluid channel (8) extends, which extends between an inlet connection (6) and an outlet connection (7), wherein a throttle section (60) is formed in the fluid channel (8), into which a variable-position throttle member (46) protrudes, which with the throttle section (60) delimits a throttle cross-section (62) that is variable between a first cross-sectional area and a second cross-sectional area, and the one Has a drive device (29, 35) which is coupled to the throttle member (46) and which is designed to provide a relative movement of the throttle member (46) with respect to the throttle section (60) along a movement axis (42) as a function of an electrical control signal, and which has a control device (25) which is electrically coupled to the drive device (29, 35) and which is used for calculating The electrical control signal is sent to the drive device (29, 35) as a function, in particular exclusively, of a throttle signal from a higher-level controller or an input device (13), the control device (25) having a communication connection (15) which is used to receive a throttle signal from a higher-level controller and/or from an input device (13), with the inlet connection (6) or the outlet connection (7) of the throttle valve (2) being assigned a flow sensor (3) which is used to determine a fluid flow through the fluid channel (8) and which is accommodated in a sensor housing (19), the flow sensor (3) being electrically connected to the control device (25) and being designed to provide a flow signal to the control device (25), the control device ( 25) includes a controller from the group: two-point controller, setpoint/actual value controller, for a provision of the electrical control signal to the drive device (29, 35) as a function of a deviation between the flow rate signal and the throttle signal and wherein the flow rate sensor (3) is embodied as a thermal anemometer and/or wherein the flow rate sensor (3) has a display device (14 ) for displaying a determined flow signal and/or that the flow sensor (3) has an input device (13) for inputting a throttle value includes, which is provided as a throttle signal to the control device (25). Throttle valve arrangement according to claim 1 , characterized in that the drive device (29, 35) is designed to provide a linear movement of the throttle member (46) relative to the throttle section (60) and/or that an input means for inputting a throttle signal is connected to the communication connection (15). Throttle valve arrangement according to claim 1 or 2 , characterized in that the drive device (29, 35) comprises an electric motor (29) electrically coupled to the control device and a gear device (35) coupled to the electric motor (29) and designed in particular as a multi-stage gear train, which is used to reduce the movement of a rotary movement a drive shaft (30) of the electric motor (29) in the relative movement of the throttle member (46) with respect to the valve housing (20). Throttle valve arrangement according to claim 3 , characterized in that the transmission device (35) comprises a threaded drive with a spindle nut (36) and a threaded spindle (43), the threaded spindle (43) being coupled to the throttle element (46) and being held on the valve housing (20) in a rotationally fixed and linearly movable manner is. Throttle valve arrangement according to claim 3 or 4 , characterized in that the gear device (35) is designed to be self-locking. Throttle valve arrangement according to one of the preceding claims, characterized in that the flow sensor (3) is accommodated in a separately constructed sensor housing (19). Throttle valve arrangement according to one of the preceding claims, characterized in that the communication connection (15) is designed for receiving, in particular exclusively, analog communication signals and/or IO-Link communication signals and/or digital communication signals, in particular bus communication signals. Throttle valve arrangement according to one of the preceding claims, characterized in that the throttle member (46) with a throttle needle (50) which extends along the axis of movement (42) and is designed in the shape of a cone segment, in a throttle bore (61) which is preferably profiled in the shape of a cone segment and is aligned coaxially with the throttle needle (50). protrudes, which passes through the throttle section (60) and which is designed for a fluidically communicating connection between a first fluid channel section (17) assigned to the inlet connection (6) and a second fluid channel section (18) assigned to the outlet connection (7), the first fluid channel section ( 17), the second fluid channel section (18) and the throttle bore (61) form the fluid channel (8).

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