NZ780767B2 - Dispensing nozzle - Google Patents

Abstract

The subject of the invention is a dispensing nozzle for dispensing a fluid into a tank of a motor vehicle. The dispensing nozzle comprises the following features: - the dispensing nozzle comprises a channel (30) for passing through the fluid, wherein a main valve (5) is arranged in the channel (30), said main valve being movable between a closed position and an open position for controlling a fluid flow, - the dispensing nozzle comprises a first maximum volumetric flow rate and a second maximum volumetric flow rate, wherein the second maximum volumetric flow rate is greater than the first, According to the invention it is provided that the dispensing nozzle comprises an adjustable flow limiter (22) which is arranged downstream of the main valve (5) and which is configured to limit the fluid flow selectively to the first or second maximum volumetric flow rate. The dispensing nozzle also comprises an actuating device (20, 21) which is configured for interaction with a signal element (29) which is assigned to the tank of the motor vehicle and for the selective adjustment of the flow limiter (22) to the first or the second maximum volumetric flow rate. By the provision of a flow limiter which is adjustable due to an interaction with the signal element, a rapid and reliable filling of different-sized containers containing liquid is ensured in a structurally simple manner.

Description

The subject of the invention is a dispensing nozzle for dispensing a fluid into a tank of a motor vehicle. The sing nozzle comprises the following features: - the dispensing nozzle comprises a channel (30) for passing through the fluid, n a main valve (5) is arranged in the channel (30), said main valve being movable between a closed position and an open position for controlling a fluid flow, - the sing nozzle comprises a first maximum volumetric flow rate and a second maximum volumetric flow rate, wherein the second maximum volumetric flow rate is greater than the first, According to the invention it is provided that the dispensing nozzle comprises an adjustable flow limiter (22) which is arranged downstream of the main valve (5) and which is ured to limit the fluid flow selectively to the first or second maximum volumetric flow rate. The dispensing nozzle also comprises an actuating device (20, 21) which is configured for interaction with a signal t (29) which is assigned to the tank of the motor vehicle and for the selective adjustment of the flow limiter (22) to the first or the second maximum volumetric flow rate. By the provision of a flow limiter which is adjustable due to an interaction with the signal element, a rapid and reliable filling of different-sized ners containing liquid is ensured in a structurally simple manner. 780767 B2 Dispensing nozzle The subject of the present invention is a dispensing nozzle for dispensing a fluid into a tank of a motor e. The dispensing nozzle ses a channel for passing through the fluid as well as a main valve which is arranged in the channel , said main valve being movable between a closed position and an open position for lling a fluid flow through the dispensing nozzle. The dispensing nozzle also comprises a first adjustable maximum volumetric flow rate and a second ad- justable maximum volumetric flow rate, wherein the second maximum volumetric flow rate is greater than the first maximum volumetric flow rate.

Such a dispensing nozzle is disclosed in EP 3 369 700 A1. Said dispensing nozzle serves, for example, to fill the tank of a vehicle with an aqueous urea solution (also known by the name AdBlue). This urea solution is required for many newly registered diesel motor vehicles due to strict exhaust emission rds, in order to reduce nitrogen oxide emissions generated during the combustion process. Since the first or second maximum volumetric flow rate may be selectively adjusted by the interaction of the sensor device with a signal t of the tank, the maximum volumetric flow rate may be adapted to the tank to be filled. In particular, it may be provided that in the case of a large tank with a correspondingly large ca- pacity, for example designed according to ISO 22241-4, the larger second m volumetric flow rate is adjusted such that a rapid filling may be carried out in spite of the size of the tank. In the case of a small tank, for example designed according to ISO 22241-5, in which volumetric flow rates which are too large could lead to disruptions or interruptions to the sing of fluid, it may be ed that the smaller 20067458_1 (GHMatters) P117220.NZ first maximum volumetric flow rate is adjusted such that tions or interruptions are reliably avoided.

For adjusting the first or second maximum volumetric flow rate, it has been proposed in EP 3 369 700 A1 to implement the first and second m volumetric flow rate by limiting the maximum open position of the main valve, wherein an interaction between a signal element of the tank and the main valve takes place via an automatic switch-off device of the dispensing nozzle. Whilst this solution permits a reliable and safe adjustability of the first and second maximum volumetric flow rate, the on is structurally complex since an intervention is required in the automatic -off device of the dispensing nozzle.

In view of this background it would be desirable to provide a sing nozzle with a first and second maximum volumetric flow rate, which is simpler in terms of construction. With this in mind, the t invention provides a dispensing nozzle and a spout for a dispensing nozzle having features as set out in the independent claims. Advantageous ments are described in the dependent claims.

One aspect of the present invention provides a dispensing nozzle for dispensing a fluid into a tank of a motor vehicle, comprising the following features: the dispensing nozzle comprises a channel for passing through the fluid, wherein a main valve is arranged in the channel, said main valve being movable between a closed position and an open position for controlling a fluid flow, the dispensing nozzle ses a first maximum volumetric flow rate and a second maximum volumetric flow 20067458_1 (GHMatters) P117220.NZ rate, wherein the second maximum volumetric flow rate is greater than the first, and the first maximum volumetric flow rate is greater than zero, the dispensing nozzle comprises an able flow limiter which is configured separately from the main valve and which is configured to limit the fluid flow ively to the first or second maximum volumetric flow rate, the dispensing nozzle comprises an actuating device which is configured for interaction with a signal element which is assigned to the tank of the motor vehicle and for the selective adjustment of the flow limiter to the first or the second m volumetric flow rate.

Firstly some of the terms used within the context of the invention are explained.

A dispensing nozzle is a device for controlling the flow of liquid during a refuelling process. The requirements for the design and mode of operation of automatic dispensing nozzles for use in fuel pumps are regulated in DIN EN 13012.

The user controls the dispensing of liquid by means of the main valve. Generally a switch lever serves for actuating the main valve. The liquid is generally passed through a spout into the container to be .

The dispensing nozzle has an able flow limiter which is configured to limit the fluid flow selectively to the first or the second maximum volumetric flow rate. This means that, at a predetermined nt fluid pressure at the inlet of the dispensing nozzle, in each case at most the respectively adjusted maximum volumetric flow rate is able to pass through 20067458_1 (GHMatters) P117220.NZ by means of the flow limiter. In particular, the user is able to control the tric flow rate by means of a switch lever and the main valve coupled o, in each case only up to the respectively ed first or second m volumetric flow rate. The respectively adjusted maximum volumetric flow rate thus limits the maximum dispensing of liquid per time unit. The second maximum volumetric flow rate is greater than the first maximum volumetric flow rate. The invention is not limited to a dispensing nozzle having just two able maximum volumetric flow rates, the invention also encompasses embodiments in which the flow limiter is adjustable to three or more adjustable maximum volumetric flow rates. The adjustable flow limiter is configured separately from the main valve. This means that the flow limiter is adjustable to the first or second maximum tric flow rate, irrespective of the state of the main valve. The flow limiter may be arranged spaced apart from the main valve, upstream or downstream of the main valve.

Since the adjustable flow limiter according to the invention is configured separately from the main valve, the selective limiting of the fluid flow takes place independently of the main valve and the automatic switch-off mechanism thereof.

Thus complex modifications to the automatic switch-off mechanism and/or to the main valve are not required, whereby the construction of the dispensing nozzle may be simplified and the onal reliability increased. The arrangement of a flow limiter separately from the main valve also permits significantly r repairs in the case of malfunctions. The flow limiter may also be optionally configured to be retrofitted in the case of pre-existing dispensing nozzles. 20067458_1 ters) P117220.NZ In one embodiment, the flow limiter is arranged downstream of the main valve. Preferably, the flow limiter is arranged in a spout of the dispensing nozzle. By the arrangement of the flow limiter in the spout, the spout may be replaced as a te unit so that simple repairs may be d out in the case of malfunctions. It is also possible to it dispensing nozzles by ing the spout with the flow limiter according to the invention. The subject of the invention in this regard is also a spout for a dispensing nozzle according to the invention, wherein the spout has an adjustable flow limiter which is configured to limit the fluid flow selectively to the first or second maximum volumetric flow rate, wherein the spout also has an ing device which is configured for interaction with a signal t assigned to the tank of the motor vehicle and for the selective ment of the flow limiter to the first or the second maximum volumetric flow rate. The flow limiter according to the invention may be developed by further features described in the present case in connection with the dispensing nozzle according to the invention.

The first adjustable maximum volumetric flow rate may be less than 15 l/min, ably it is between 5 l/min and 15 l/min, further preferably between 5 l/min and 10 l/min. Additionally or alternatively, the second adjustable maximum volumetric flow rate may be less than 50 l/min, preferably it is between l/min and 50 l/min, further preferably between 20 l/min and 40 l/min.

Preferably, the flow limiter is adjusted by default to the first able maximum volumetric flow rate, wherein the second adjustable maximum volumetric flow rate is only adjusted when the actuating device detects the signal element. 20067458_1 (GHMatters) P117220.NZ The detection of the signal t in this case may be carried out, in particular, by the interaction between the actuating device and the signal element. Since the r first m volumetric flow rate is ed by default, the dispensing of the smaller volumetric flow rate takes place by default, wherein larger tric flow rates are only discharged when it is ensured by the identification of the corresponding signal element that, due to its size, the tank to be refuelled is also suitable for the larger second maximum volumetric flow rate.

In a preferred embodiment, the actuating device is configured for interaction with a ring magnet of a filler neck according to ISO 22241-4. The signal element in this case may thus comprise a ring magnet of a filler neck according to ISO 22241-4.

The actuation of the flow limiter for selectively adjusting the first or second maximum volumetric flow rate may be d out magnetically and/or mechanically (for example by means of spring elements) and/or pneumatically (for example by means of compressed air) and/or electrically (for e by means of an actuator). In a preferred embodiment, the actuating device has a displaceably arranged magnetic element which is designed for mechanically actuating the flow limiter.

A magnetic force which is ted between the magnetic element and the ring magnet may be mechanically transmitted to the flow limiter in order to actuate said flow limiter. In ular, the magnetic element may be connected by a mechanical signal transmission device, for example by a transmission rod, to the flow limiter. 20067458_1 (GHMatters) P117220.NZ The flow limiter may have a valve body, wherein preferably the mechanical signal ission device or, respectively, the transmission rod is connected to the valve body. The magnetic force may be transmitted via the transmission rod to the valve body in order to open or, respectively, close the flow limiter. The valve body in this case is preferably movable in a first direction when the flow limiter is actuated by the signal ission device. Preferably, a restoring element is also provided, said restoring element being connected to the valve body and being able to be configured, in particular, to urge the valve body in a ion ng the first direction.

The flow limiter may additionally have a valve seat, n the valve body is ably movable downstream into a closed position in which it bears against the valve seat. In this embodiment, the flow limiter may also be denoted as a throttle valve. It is preferably provided that the valve body is movable into the closed position for selectively limiting the fluid flow to the first maximum volumetric flow rate and into an open position for selectively limiting the fluid flow to the second maximum volumetric flow rate. The movement into the open position may take place by the transmission of the magnetic force to the valve body by means of the signal transmission . The movement of the valve body into the closed position may take place, for example, by the restoring element or may be ed thereby. Alternatively or additionally, the movement of the valve body into the closed position may also be achieved by the valve body being urged by the fluid pressure into the closed position, when the dispensing nozzle is introduced into a filler neck without a ring magnet. 20067458_1 (GHMatters) P117220.NZ In particular, the aforementioned default adjustment of the flow r to the first maximum volumetric flow rate may be achieved by the movement of the valve body into the closed position generated by the restoring element or by the fluid pressure. If the dispensing nozzle is introduced into a filler neck which has a ring magnet, a magnetic force acts between the ring magnet and the magnetic element. In the preferred embodiment described in the present case, the magnetic force acting between the ring magnet and the magnetic element is designed to move the valve body into the open position counter to a closing force generated by the fluid re and by the optionally present restoring t, and also to keep the valve body there r to the closing forces generated by the fluid pressure.

Preferably, a flow guidance device which is designed to reduce a closing force exerted by fluid flowing onto the valve body is arranged upstream of the valve body. To this end the flow guidance device may have, in particular, guide surfaces which are inclined relative to an axial direction of the valve body.

The guide surfaces may also be configured to deflect the fluid flow in the radial direction (i.e. dicular to the axial direction of the valve body) from a rear e of the valve body facing upstream, so that preferably at least one part of the fluid flow is ted past the rear surface. For example, it may be provided that the guide surfaces are designed to deflect radially outwardly the fluid flow from an axis running centrally through the valve body. As a , a lateral incident flow onto the valve body may be ensured, whereby the closing forces generated by the fluid are reduced.

A mobility of the valve body may be d by a stop in the upstream direction. By limiting the mobility of the valve 20067458_1 (GHMatters) P117220.NZ body, said valve body adopts a defined position in the open position.

Preferably, a bypass l which bridges the flow limiter is provided. Due to the bypass l the flow limiter does not entirely prevent the fluid flow through the dispensing nozzle but merely brings about a reduction in the fluid flow. The bypass channel is preferably ured to allow the passage of the first maximum volumetric flow rate when the flow r is closed. The bypass channel may have a through- opening for the fluid flow extending through the valve body.

Alternatively or additionally, the bypass channel may also have a side branch which is spaced apart from the flow limiter and which runs parallel to a fluid flow passing through the open flow limiter.

The dispensing nozzle may have a safety valve which is arranged downstream of the flow r and which is urged into a closed position downstream by a restoring element, wherein the safety valve is movable into an open position by the interaction with a filler neck of the tank. Such a safety valve is disclosed, for example, in EP 2 733 113 A1.

Preferably, the dispensing nozzle also has an automatic switch-off device which automatically interrupts the refuelling process when the tank is full. To this end, a sensor line which extends to the outlet end of the dispensing nozzle and which is operatively connected by pneumatic means to the automatic switch-off device may be provided. Details of the design of such an automatic -off device are found, for example, in EP 2 386 520 A1. The safety valve onally serves as an anti-drip valve in order to prevent, for example, the red escape of residual quantities of fluid when the main valve is closed. 20067458_1 (GHMatters) P117220.NZ In particular, it may be provided that the actuating device is configured to be displaceable relative to a valve stem of the safety valve, wherein the valve stem of the safety valve preferably has a cavity in which the magnetic element of the actuating device is displaceably ed. It has been shown that the arrangement of the magnetic element inside the valve stem of the safety valve permits a particularly space-saving construction. If the actuating device has a transmission rod, this transmission rod may be passed through a h-opening in a rear wall of the valve stem.

Another aspect of the present invention provides a spout for a dispensing nozzle for dispensing a fluid into a tank of a motor e, comprising the following features: the spout comprises a channel for passing through the fluid, the spout comprises a first maximum volumetric flow rate and a second m volumetric flow rate, wherein the second maximum volumetric flow rate is greater than the first, and the first maximum volumetric flow rate is greater than zero, the spout ses an adjustable flow limiter which is configured to limit the fluid flow selectively to the first or second m volumetric flow rate, the spout comprises an actuating device which is configured for interaction with a signal element which is assigned to the tank of the motor vehicle and for the selective adjustment of the flow limiter to the first or the second maximum tric flow rate. 20067458_1 (GHMatters) P117220.NZ A further aspect of the present ion provides an arrangement consisting of a dispensing nozzle according to the invention and a fluid pump which is attached to the dispensing nozzle for supplying the fluid. The dispensing nozzle may be developed by further features sed within the context of the present description.

A preferred embodiment of the dispensing nozzle according to the invention is described after by way of example with reference to the accompanying figures, in which: Figure 1: shows a lateral sectional view of a dispensing nozzle according to the invention in a first state; Figure 2: shows a spout of the dispensing nozzle according to the invention of Figure 1 in an enlarged view; Figure 2a: shows a sectional view along the line A-A shown in Figure 2; Figure 2b: shows a sectional view along the line A-A shown in Figure 2 for illustrating a further embodiment of the dispensing nozzle according to the invention which has an alternative flow limiter; Figure 3: shows the dispensing nozzle of Figure 1 in a second state; Figure 4: shows the spout of the sing nozzle of Figure 3 in an enlarged view; Figure 5: shows the dispensing nozzle of Figure 1 in a third state; 20067458_1 (GHMatters) P117220.NZ Figure 6: shows the spout of the dispensing nozzle of Figure 5 in an enlarged view.

Figure 1 shows a l sectional view of a dispensing nozzle according to the invention. The sing nozzle comprises a housing 1 in which a channel 30 is formed for passing through a fluid. Via an inlet 2 a hose for supplying the fluid may be connected to the dispensing nozzle (not shown). A main valve 5 which may be actuated via a switch lever 4 is arranged in the channel 30. In Figure 1 the main valve 5 is in the closed position in which the fluid flow through the dispensing nozzle is blocked.

A spout 3 according to the invention is connected to the housing 1. The spout 3 may be introduced into a filler neck of a tank for rging the fluid. The dispensing nozzle is suitable, in particular, for discharging an aqueous urea solution into the tank of a vehicle.

An automatic switch-off device 35 is operatively connected to the main valve 5, the main valve 5 being able to be moved by said automatic switch-off device into the closed position irrespective of the position of the switch lever 4. A sensor line 6 which is operatively connected to the switch-off device by pneumatic means is additionally d in the spout 3.

If during the discharge of the fluid the fluid filling state reaches the front end of the spout, and thus covers the sensor line 6, a pressure change associated ith leads to a triggering of the automatic switch-off device 35 and thus to a closing of the main valve 5. The mode of operation of the automatic switch-off device 35 is known in principle (see for example EP 2 386 520 A1) and is not intended to be ned here in more detail. 58_1 (GHMatters) P117220.NZ A safety valve 7 which has a valve stem 9 and which closes downstream against the valve seat 15 (see Figure 4) is also provided in the region of the outlet end of the spout 3. The end of the valve stem 9 facing upstream is provided with a magnet 10.

The spout 3 also has a sleeve 11 which is displaceable in the axial direction thereof and which is pretensioned by a spring 12 into the blocked position shown in Figure 1. A ring magnet 13 is arranged on the sleeve 11, said ring magnet urging the valve stem 9 and the safety valve 7 by magnetic interaction with the magnet 10 into the closed on shown in Figures 1 and 2.

The sensor line 6 has a sensor line valve 17 with a valve stem 18 which is arranged on the outlet side end and which with its outlet side end closes against a valve seat. The valve stem 18 comprises at the opposing end an actuating magnet 19 which keeps the valve stem 18 in the closed position by interacting with the operative magnet 13.

In the state shown in Figures 1 and 2, the channel 30 is closed by the safety valve 7. Moreover, the sensor line 6 is closed by the sensor line valve 17. If the main valve 5 is actuated in this state by means of the switch lever 4, a discharge of the fluid is prevented since the spout is closed by the safety valve 7.

An adjustable flow r which is configured in the present case by a throttle valve 22 is also located in the spout 3. By means of the throttle valve 22 a fluid flow through the dispensing nozzle or, respectively, through the spout 3 may be selectively limited to a first m volumetric flow rate or 20067458_1 ters) P117220.NZ a second m volumetric flow rate. The throttle valve 22 has a valve body 31 which is connected by means of a ission rod 21 to a magnetic element 20. The magnetic element 20 is arranged in a cavity 33 inside the valve stem 9 of the safety valve 7 and is displaceable relative to the valve stem 9 in the axial direction of the spout 3. The transmission rod 21 is also displaceable relative to the valve stem 9 and guided through a through-opening located in a rear wall of the valve stem 9 facing upstream.

The magnetic element 20 and the transmission rod 21 er form an actuating device for the throttle valve 22. In the state shown in Figures 1 and 2, the valve body is located in a closed position in which it bears ream against a valve seat 23 of the throttle valve 22. The valve body 31 is urged downstream relative to the valve stem 9 by a ing t 36 and as a result clamped in the valve seat 23. The mode of operation of the actuating device 20, 21 and the adjustment of the throttle valve 22 to the second maximum volumetric flow rate is explained in more detail in connection with Figures 3 to 6.

Figures 3 and 4 show the dispensing nozzle of Figure 1 and the spout thereof, after the introduction thereof into a filler neck 16 of the tank. In contrast to Figures 1 and 2, the main valve 5 has also been moved into an open position by actuating the switch lever 4. The filler neck 16 in the present case is the filler neck of a urea tank of a passenger motor vehicle according to ISO 22241-5 without a ring magnet.

The filler neck 16 is configured in a manner known in principle (see EP 3 369 700 A1) to displace the sleeve 11, when the spout 3 is introduced ve thereto, upstream from 20067458_1 (GHMatters) P117220.NZ the blocked on shown in Figures 1 and 2 into an open position. With the displacement of the sleeve 11, the operative magnet 13 connected thereto also moves upstream relative to the spout 3, wherein by magnetic ction said operative magnet entrains the magnet 10 fixed to the valve stem 9 and the actuating magnet 19 fixed to the valve stem 18 and thus opens the sensor line valve 17 and the safety valve The magnetic element 20 is removed sufficiently far from the operative magnet 13 that it is not influenced by the displacement of the ive magnet 13, or only in a negligible manner. Since the magnetic element 20, the transmission rod 21 and the valve body 31 connected o are movable relative to the valve stem 9 and urged by the restoring element 36 into the closed position, the valve body 31 remains in the closed position. Through-holes 37 which are illustrated in the sectional view of Figure 2a are located in the valve seat 23. Even in the closed position of the valve body 31 a specific volumetric flow rate may pass h the spout 3 through the through-holes 37. This specific volumetric flow rate is at most as large as the first maximum volumetric flow rate of the throttle valve which in the present case is 9 l/min. The volumetric flow rate passing through the opening of the main valve 5 is thus d by the closed throttle valve 22 to the first maximum volumetric flow rate of the dispensing nozzle. Additionally or alternatively to the through-holes 37 located in the valve seat 23, through-holes 38 may also be provided in the valve body 31 in an ative embodiment.

This is illustrated by way of example in Figure 2b which shows a sectional view corresponding to Figure 2a. 20067458_1 (GHMatters) P117220.NZ Figures 5 and 6 show the dispensing nozzle of Figure 1 and the spout thereof after the introduction thereof into a filler neck 32, which in contrast to the filler neck 16 of the Figures 3 and 4 is the filler neck of a urea tank of a passenger motor vehicle according to ISO 22241-4 with a ring magnet 29. In a r manner to Figures 3 and 4, the main valve 5 is in an open position.

When the spout is introduced, the sleeve 11, as already bed in connection with Figures 3 and 4, is displaced by the filler neck 32 relative to the spout 3 so that both the sensor line valve 17 and the safety valve 7 are opened by the ction between the ive magnet 13 and the magnets 10 and 19.

Moreover, in the t case it results in an interaction n the ring magnet 29 and the magnetic element 20. In particular, the ring magnet 29 and the magnetic element 20 are arranged such that, when the spout 3 is introduced into the filler neck 32, like poles initially oppose one another and thus a repelling force is exerted on the magnetic element 20.

The magnetic element 20 in this case is ed such that the magnetic force exceeds the opposing restoring force of the restoring element 36. The repelling force thus leads to a displacement of the magnetic element 20 in the upstream direction relative to the spout 3. Due to the connection of the magnetic element 20 to the valve body 31, formed by the transmission rod 21, the valve body is moved counter to the restoring force of the restoring element 36 into an open position. The movement of the valve body 31 is limited upstream by a stop 34. 20067458_1 (GHMatters) P117220.NZ In the open position of the throttle valve 22, with a predetermined fluid pressure at the inlet of the dispensing , a greater volumetric flow may pass through the spout than in the closed position shown in Figures 3 and 4. In particular, in the state shown the throttle valve 22 is designed with a sufficient opening of the main valve 5 to allow the second m volumetric flow rate h the spout 3, which in the present case is approximately 20 l/min.

The magnetic force acting between the ring magnet 29 and the magnetic element 20 is sufficiently great that the valve body 31 is held in the open position counter to the fluid pressure and counter to the restoring force of the restoring element 36. A flow guidance device 24, which in the embodiment shown is integrally configured with the stop 34, is provided in order to reduce the force exerted by the fluid flowing onto the valve body 31. In alternative embodiments, the stop 34 and the flow guidance device 24 may also be formed by separate The flow guidance device 24 has relative to the axial direction of the valve body 31 inclined guide surfaces 25 which are configured to divert outwardly the fluid from an axis g centrally h the valve body 31 (which in the present case coincides with the longitudinal axis of the transmission rod 21). The guide surfaces 25 have through- openings for the fluid which are not identifiable in the s and which are arranged radially outwardly when viewed from the axis running centrally through the valve body. The fluid flow is diverted outwardly by the flow guidance device 24 inside the channel 30 so that only a reduced dynamic pressure or, respectively, back pressure acts on the central rear e of the valve body 31. The closing force exerted by the fluid onto the valve body 31 is thereby reduced. 20067458_1 (GHMatters) P117220.NZ

Claims (20)

Claims

1. A dispensing nozzle for dispensing a fluid into a tank of a motor e, comprising the ing features: the dispensing nozzle comprises a channel for passing 5 through the fluid, wherein a main valve is arranged in the channel, said main valve being movable between a closed position and an open on for controlling a fluid flow, the dispensing nozzle comprises a first maximum volumetric flow rate and a second maximum tric flow 10 rate, wherein the second maximum volumetric flow rate is r than the first, and the first maximum volumetric flow rate is greater than zero, the dispensing nozzle comprises an adjustable flow limiter which is configured separately from the main valve and 15 which is configured to limit the fluid flow selectively to the first or second maximum volumetric flow rate, the dispensing nozzle comprises an actuating device which is configured for interaction with a signal element which is assigned to the tank of the motor vehicle and for the 20 ive adjustment of the flow r to the first or the second maximum volumetric flow rate.

2. Dispensing nozzle according to claim 1, wherein the flow limiter is arranged downstream of the main valve.

3. Dispensing nozzle according to claim 1, wherein the first 25 maximum volumetric flow rate is less than 15 l/min, and/or wherein the second maximum volumetric flow rate is less than 50 l/min. 20067458_1 (GHMatters) P117220.NZ

4. Dispensing nozzle according to claim 1, wherein the flow limiter is adjusted by default to the first maximum volumetric flow rate, wherein the second maximum volumetric flow rate is only ed when the actuating device detects the signal 5 element.

5. Dispensing nozzle according to claim 1, wherein the signal element is a ring magnet, and the actuating device is ured for interaction with the ring magnet of a filler neck according to ISO 22241-4. 10

6. sing nozzle according to claim 1, wherein the actuating device has a displaceably arranged magnetic element which is designed for mechanically actuating the flow r.

7. sing nozzle according to claim 6, wherein the magnetic element is connected by a ical signal 15 transmission device to a valve body of the flow limiter, n the valve body is movable in a first direction when the flow limiter is actuated by the signal transmission device.

8. Dispensing nozzle according to claim 7, wherein the flow 20 limiter has a valve seat, wherein the valve body is movable downstream into a closed position in which it bears against the valve seat.

9. Dispensing nozzle according to claim 8, wherein the valve body is movable into the closed position for selectively 25 limiting the fluid flow to the first maximum volumetric flow rate and into an open position for selectively limiting the fluid flow to the second maximum volumetric flow rate. 20067458_1 (GHMatters) P117220.NZ

10. Dispensing nozzle ing to claim 7, wherein a stop is arranged upstream of the valve body for limiting the mobility of the valve body.

11. Dispensing nozzle according to claim 7, n a flow 5 guidance device which is designed to reduce a g force exerted by fluid flowing onto the valve body is arranged upstream of the valve body.

12. sing nozzle according to claim 1, wherein a bypass channel which bridges the flow limiter is provided, said 10 bypass channel being ured to allow the passage of the first maximum volumetric flow rate when the flow limiter ( is closed.

13. Dispensing nozzle according to claim 1, which has a safety valve which is arranged downstream of the flow limiter 15 and which is urged into a closed position downstream by a restoring element, wherein the safety valve is movable into an open position by the ction with a filler neck of the tank.

14. A spout for a dispensing nozzle for dispensing a fluid 20 into a tank of a motor vehicle, comprising the following features: the spout comprises a channel for passing through the fluid, the spout comprises a first maximum volumetric flow rate 25 and a second maximum volumetric flow rate, wherein the second maximum volumetric flow rate is greater than the first, and the first maximum volumetric flow rate is greater than zero, 20067458_1 (GHMatters) P117220.NZ the spout comprises an adjustable flow limiter which is configured to limit the fluid flow selectively to the first or second maximum volumetric flow rate, the spout comprises an actuating device which is 5 configured for interaction with a signal element which is assigned to the tank of the motor vehicle and for the selective adjustment of the flow limiter to the first or the second maximum volumetric flow rate.

15. Arrangement comprising a dispensing nozzle according 10 to claim 1 and a fluid pump which is attached to the dispensing nozzle for supplying the fluid.

16. Dispensing nozzle according to claim 2, wherein the flow r is arranged downstream of the main valve in a spout of the sing nozzle. 15

17. sing nozzle according to claim 3, wherein the first maximum volumetric flow rate is within a range of 5 l/min to 10 l/min, and/or wherein the second maximum volumetric flow rate is within a range of 20 l/min to 40 l/min.

18. Dispensing nozzle according to claim 8, further ing 20 a restoring element, said restoring t being connected to the valve body and configured to urge the valve body in a direction opposing the first direction, wherein the valve body is further urged by the ing element into the closed position. 25

19. Dispensing nozzle according to claim 12, wherein the bypass channel has at least one through-opening for the fluid flow extending through the valve body and/or at least one through-opening for the fluid flow extending h the valve seat. 20067458_1 (GHMatters) P117220.NZ

20. Dispensing nozzle according to claim 13, wherein the actuating device is configured to be displaceable relative to a valve stem of the safety valve, and wherein the valve stem of the safety valve has a cavity in which the magnetic element 5 is displaceably mounted. 20067458_1 ters) P117220.NZ