A fluid filling nozzle with a drip stop element

Abstract

The invention relates a drip stop element (15) in a fluid filling nozzle, especially in fuel nozzle (N) that prevents the uncontrolled dripping of fluid from the end of the spout (10), especially after the fluid flow stops positioned within the filling channel (12) of the spout (10) and to allow fluid passage based on the fluid pressure it comes into contact with; and it includes a drip stop body (150) with an outer diameter equal to or smaller than the opening area of the mentioned filling channel (12); a single-piece spiral-shaped spring body (151) with a conical shape that tapering in diameter towards the direction of fluid flow and mentioned spring body (151) associated with the mentioned drip stop body (150), with a diameter equal to the section in contact with the drip stop body (150).

Description

[0001] A FLUID FILLING NOZZLE WITH A DRIP STOP ELEMENT

[0002] FIELD OF THE INVENTION

[0003] The invention relates to a nozzle that eliminates dripping after the interruption of fluid flow, particularly during the transfer of liquids from one place to another, especially from one reservoir to a different reservoir.

[0004] The invention relates to an improvement, particularly in fuel nozzles, that prevents the fuel remaining inside the nozzle from dripping after the fuel flow is cut off.

[0005] PRIOR ART

[0006] Fuel nozzles are among the components of fuel stations that enable safe fueling of vehicles at fuel stations. Fuel stations have separate storage tanks for different types of fuels, and the fuels in these tanks are conveyed to dispensers in a controlled manner. Dispensers located on islands and they includes different fuel nozzles for each fuel type. For filling process, the appropriate nozzle is chosen and used to fill vehicles with fuel.

[0007] Usually, refueling can be conducted simultaneous on both sides of the refueling island. In this context, the dispenser can manage two different refueling processes same time. Each side of the dispenser has nozzles that allow refueling of different / same types of fuels. For example, on the same side, both gasoline and diesel nozzles can be present. Within each fuel category, multiple types of refueling can also be present. In the gasoline category, the octane level of the fuel can differ, or alongside regular unleaded gasoline, performance fuel can also be available for filling. Similarly, within the diesel product categories, alternative types of diesel fuels can also be sold, (e.g., B7 diesel, standard diesel)

[0008] In fuel filling systems, there are certain features in accordance with international regulations that aim to prevent fuel loss and enhance the safety of the fuel filling process. In a general assessment, there are numerous different structures of fuel nozzles utilized in state of the art. These nozzle groups, combined with computer-aided control systems, ensure the safe execution of fuel flow.

[0009] In state of the art, fuel nozzles includes at least one lever, which facilitates the necessary triggering for fluid extraction from the nozzle / f illing spout of the fuel nozzle. Fuel nozzles operate entirely mechanically without the presence of any electrical / electronic components in accordance with safety-related regulations. The fluid is conveyed through at least one automatic pump, and control is managed through the dispenser. The pump operates when the nozzle is removed from the dispenser body, and fuel is delivered to the nozzle. The flow of fuel from the nozzle (filling spout) is solely controlled through the lever and related mechanism. There is at least one sensor on the dispenser, which detects whether the nozzle is in the compartment that located on the dispenser.

[0010] In fuel nozzles, as long as pressure is applied to the lever on the nozzle, the valve opens and allows fuel to flow. To enhance user comfort, there is a locking mechanism on the lever. When this mechanism is engaged, it keeps the lever pressed down. When the tank is full, the lock automatically opens, and the flow is cut off. EP460296A1 EPO patent document refers to a configuration of an automatic cutoff mechanism used in the prior art. In this context, during the flow, a vacuum is generated in the hose / pipe at the nozzle's tip. This vacuum creates suction on a membrane / diaphragm to keep the opening mechanism associated with the lever mechanism open, and the flow is maintained in an open position using a valve assembly. The liquid closes the end of the hose / pipe when the tank is full, and it eliminates the created vacuum condition. In this situation, the force on the membrane / diaphragm dissipates, and the latch that holds the lever locked by the reverse force acting on the valve group becomes free. As a result, the valve returns to the closed position.

[0011] In a fuel nozzle, after the fueling process is stopped, there is fuel remaining inside the body and spout. Fuel from the body and spout can drip onto the vehicle or the station floor during the removal and transportation of the fuel nozzle from the fueling point. This situation not only pollutes the environment but can also lead to fuel losses and poses a safety risk. USPTO patent document US8171965B2 discloses an invention aimed at preventing this dripping. Within the scope of the invention, there is a cover structure that can be opened and closed on the spout. However, since this cover is mechanical, its lifespan limited, and it can be costly to manufacture. Additionally, while it prevents dripping, it is not be sufficient to prevent leaks.

[0012] As a result, all abovementioned problems have made it necessary to make an improvement in the relevant technical field.

[0013] AIM OF THE INVENTION

[0014] The present invention aims to eliminate the abovementioned problems and to make a development in the relevant technical field.

[0015] The main objective of the invention is to prevent fuel from dripping out of the nozzle or spout of the fuel nozzle used during refueling, especially after the fuel flow has been cut off

[0016] Another objective of the invention is to prevent environmental damage at fuel stations.

[0017] Another objective of the invention is during refueling, to prevent fuel from dripping onto the vehicle.

[0018] BRIEF DESCRIPTION OF THE INVENTION

[0019] The invention is related to an improvement to prevent dripping in fuel nozzles so as to fulfil all aims mentioned above and will be obtained from the following detailed description.

[0020] The invention relates a fluid filling nozzle which is comprising a body which composed of one or more parts, and including a spout with a filling channel that connected to said body and allowing the passage of fluid; a drip stop element that prevents fluid from dripping from the spout, which forms the outlet opening of the fluid, after the fluid flow is cut off characterized in that; positioned within the mentioned filling channel and to allow fluid passage based on the fluid pressure it comes into contact with; and it includes a drip stop body with an outer diameter equal to or smaller than the opening area of the mentioned filling channel; a single-piece spiral-shaped spring body with a conical shape that tapering in diameter towards the direction of fluid flow and mentioned spring body associated with the mentioned drip stop body, with a diameter equal to the section in contact with the drip stop body.

[0021] In another preferred embodiment of the invention, it comprises a conical tip region as a single-piece with the spring body, which flexes in the direction of fluid flow to allow the passage of pressurized fluid, and the conical tip forms end spring region by decreasing in diameter.

[0022] In another preferred embodiment of the invention, it comprises at least one drip stop plug to seal the opening in the end spring region that located in the direction of fluid flow.

[0023] In another preferred embodiment of the invention, it includes a spring body whose length increases depending on the pressure force applied to the drip stop plug based on the pressure of the fluid conveyed to the fluid filling nozzle.

[0024] In another preferred embodiment of the invention, it includes a drip stop body bottom surface which is conjugate with the spout flat surface of the filling channel.

[0025] The protection scope of the invention is specified in the claims and cannot be limited to the description made for illustrative purposes in this brief and detailed description. It is clear that a person skilled in the art can present similar embodiments in the light of the above descriptions without departing from the main theme of the invention.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 provides the cross-sectional view of the fuel nozzle.

[0028] Figure 2 provides a cross-sectional view of the filling spout of the fuel nozzle.

[0029] Figure 3 provides a cross-sectional view of the drip stop element.

[0030] Figure 4 shows a representative top view of the drip stop element.

[0031] Figure 5 presents a transverse section of the filling spout of the fuel nozzle.

[0032] The drawings are not intended to limit the scope of protection as defined in the claims, and they should not be referred to in isolation without resorting to the technical description in the present disclosure to interpret the scope defined in those claims. The mentioned drawings aim to provide clarity in defining the invention.

[0033] DESCRIPTION OF THE REFERENCES IN FIGURES

[0034] 10. Spout

[0035] 100. Spout sealing element

[0036] 101 . Spout flat surface

[0037] 102. Level detection out form

[0038] 1 1 . Level detection aperture

[0039] 1 10. Spout vacuum channel

[0040] 1 1 1. Spout vacuum channel opening

[0041] 1 12. Aperture inner plug

[0042] 12. Filling channel

[0043] 13. Fixing opening

[0044] 14. Fixing screw

[0045] 15. Drip stop element

[0046] 150. Drip stop body

[0047] 1500. Drip stop body bottom surface

[0048] 151 . Spring body

[0049] 1510. End spring

[0050] 151 1. Conical tip

[0051] 152. Drip stop plug

[0052] 20. Body

[0053] 200. Hose fixing means 21 . Detection inter channel 0. Vapor suction body

[0054] 31 . Vapor suction body front opening

[0055] 32. Vapor suction body internal opening

[0056] 33. Vapor inner channel 0. Plate piston

[0057] 41 . Piston motion body

[0058] 42. Piston side body

[0059] 43. Plate piston spring

[0060] 44. Rollers

[0061] 45. Plate piston inner spring

[0062] 50. Automatic shut-off mechanism body

[0063] 51 . Membrane

[0064] 52. Motion transfer bracket

[0065] 53. Membrane fixation means

[0066] 54. Membrane spring

[0067] 55. Suction check valve

[0068] 60. Diffuser

[0069] 61 . Diffuser body

[0070] 62. Diffuser cap

[0071] 70. Lever guard

[0072] 700. Lever guard connection part

[0073] 71 . Vapor transfer channel 80. Lever

[0074] 81 . Lever pin

[0075] 90. Vapor return hose connection element

[0076] 91 . Fixing nut

[0077] N. Fuel nozzle

[0078] DETAILED DESCRIPTION OF THE INVENTION

[0079] In this detailed description, an improvement to prevent dripping in fuel nozzles (N) is described by means of examples only for clarifying the subject matter such that no limiting effect is created.

[0080] The subject of the invention is particularly related to the innovation made in fuel nozzles (N) which used during the refueling of vehicle fuel tanks with fuels.

[0081] The invention relates a fluid filling nozzle which is comprising a body (20) which composed of one or more parts, and including a spout (10) with a filling channel (12) that connected to said body (20) and allowing the passage of fluid; a drip stop element (15) that prevents fluid from dripping from the spout (10), which forms the outlet opening of the fluid, after the fluid flow is cut off characterized in that; positioned within the mentioned filling channel (12) and to allow fluid passage based on the fluid pressure it comes into contact with; and it includes a drip stop body (150) with an outer diameter equal to or smaller than the opening area of the mentioned filling channel (12); a single-piece spiral-shaped spring body (151 ) with a conical shape that tapering in diameter towards the direction of fluid flow and mentioned spring body (151 ) associated with the mentioned drip stop body (150), with a diameter equal to the section in contact with the drip stop body (150).

[0082] Figure 1 illustrates a cross-sectional view of the fuel nozzle (N). As shown in the figure, the fuel nozzle (N) comprises at least one body (20), at least one spout (10) connected to the mentioned body (20), and at least one vapor suction body (30) connected to the body (20) from the outside of the spout (10). Fuel reaches the body (20) of the fuel nozzle (N) through a hose fixing means (200). The motion of the lever (80) towards the body (20) induces linear motion in the plate piston (40), and the motion of the diffuser cap (62) within the diffuser body (61 ) of the diffuser (60) permits the passage of fuel. Fuel flows through a filling channel (12) of the spout (10). The components within the body (20) are positioned from the rear towards the front, and the rear part is closed using at least one fixing nut (91 ).

[0083] The invention includes a lever (80) with a lever pin (81 ) located at its tip. The mentioned lever pin (81) can be integral with the lever (80) body or can be connected to the tip of the lever (80) body later. In the preferred embodiment, the lever (80) is made of plastic material, while the lever pin (81 ) is made of metal and the lever (80) produced as an over-mold onto the lever pin (81 ). The lever (80) is coaxially connected to the opening where the lever pin (81 ) is positioned within the body (20), with allowing angular movement within that area. The lever pin (81 ) is associated with the piston motion body (41 ) that is positioned within the body (20). In the preferred embodiment, there is a recess / aperture on the piston motion body (41 ), and the lever pin (81 ) is positioned within the mentioned recess.

[0084] The plate piston (40) assembly consists of at least three main bodies, with the piston motion body (41 ) located in the central section, and piston side bodies (42) located on the two sided of the mentioned piston motion body (41 ). The piston motion body (41 ) can move linearly in a limited manner between the two piston side bodies (42). At least one plate piston spring (43) positioned on the outer rear part of the plate piston (40) and mentioned plate piston spring (43) applies constant opposing force to counteract the force exerted on the plate piston (40) by the lever (80).

[0085] The diffuser (60) that positioned behind the plate piston (40), enables flow passage as the lever pin (81 ) moves the piston motion body (41 ), preferably in the direction towards the spout (10). As seen in Figure 1 , the diffuser (60) is positioned within the body (20) and it comprises a diffuser body (61 ) located inside it. The mentioned diffuser body (61 ) includes a diffuser cap (62), preferably with a conical shape, which can move linearly within the diffuser body (61 ) to change its position. The mentioned diffuser cap (62) functions as the primary valve that controls the flow passage.

[0086] The position of the lever (80) can be kept fixed for allowing continuous fluid passage of the fuel nozzle (N) with a locking mechanism which is located on the lever (80).

[0087] The fuel nozzle (N) includes an automatic shut-off mechanism body (50) associated with the plate piston (40), preferably positioned in the upper section. A membrane (51 ) located between the mentioned automatic shut-off mechanism body (50) and the body (20), and the membrane (51 ) is connected to the automatic shut-off mechanism body (50) through at least one membrane fixation means (53) at its central part. There is at least one membrane spring (54) on the mentioned membrane fixation means (53). The lower end of the mentioned membrane fixation means (53) (preferably lower side of the membrane (51 ) facing the body (20)), includes a motion transfer bracket (52) that consisting of at least one part. The vertical axis movement of the mentioned motion transfer bracket (52) directly affects the position of the membrane (51 ).

[0088] The plate piston (40) includes at least one opening. At least one, preferably two rollers (44) are positioned in the mentioned opening. The mentioned rollers (44) move out the opening and are positioned on the upper part of the piston motion body (41 ) preferably on the piston side body (42) the piston motion body (41 ) to move preferably in the direction of the spout (10) with the angular movement of the lever pin (81 ).

[0089] The mentioned rollers (44) are mounted on the motion transfer bracket (52). The motion transfer bracket (52) moves in the direction of the membrane (51 ) and it provides the membrane (51 ) to swell in the opposite direction of the automatic shut-off mechanism body (50) with the change in the position of the rollers (44). In this position, the membrane spring (54) applies a constant force to the rollers (44) in the direction of the plate piston (40). The position is maintained due to the rollers (44) being released from the opening on the plate piston (40).

[0090] During the flow of fuel, there is a pressure change and a vacuum effect (venturi effect) occurs at the tip of the spout (10). A level detection aperture (11 ) located in the mentioned region is opened from the inside of the spout (10) towards the body (20), and it reaches the upper part of the membrane (51 ) over the body (20), the loop is completed within the body (20) in the subsequent section. The vacuum generated when the lever (80) is locked / pressed during filling, ensures that the membrane (51 ) maintains its downward position permanently. When this vacuum is interrupted, the membrane (51 ) changes its position; that causes the rollers (44) to change their position in the opening on the plate piston (40), and plate piston inner spring (45) that positioned behind the plate piston (40) allows the lever (80) to be released. The flow is halted by disengaging the lever (80) locking mechanism through the spring assemblies of the fuel nozzle (N). In the preferred embodiment of the invention, it comprises at least one suction check valve (55) at any section of the vacuum line preferably near the membrane (51 ) that enables automatic shut-off. The mentioned suction check valve (55) ensures the creation of a vacuum only when the spout (10) of the fuel nozzle (N) is downwardly positioned at the tip of the level detection aperture (11 ). This prevents the fuel nozzle (N) from remaining locked (when the spout (10) is in an upward position) during transportation of the fuel nozzle (N), thus ensures that cut off the fuel flow while it is locked when the fuel nozzle (N) is desired to position the at the dispenser or during transportation on the fuel nozzle (N).

[0091] In the preferred embodiment of the invention, multiple spout sealing elements (100) are positioned at the junction / connection section between the spout (10) and the body (20), and it includes detection inter channel (21 ) between at least two spout sealing elements (100). The mentioned detection inter channel (21 ) preferably constitutes a channel formed / created on the body (20) that allows the level detection aperture (11) to open to the section of the body (20) where the suction check valve (55) is located.

[0092] In the preferred embodiment of the invention, the vaporization occurring in the tank can be recovered back to the system through the fuel nozzle (N). Accordingly, it includes a vapor suction body (30) that connected to the body (20), preferably located at the upper part of the spout (10). There is a vapor suction body front opening (31 ) at the front end of the vapor suction body (30). This vapor suction body front opening (31 ) is positioned at the tank opening during the filling process, and fuel vapor is drawn in from this section. A vapor suction body internal opening (32) is formed between the spout (10) and the vapor suction body (30) that located on the outer side of the spout (10) due to the external form of the spout (10) and certain sealing elements. This vapor suction body internal opening (32) opens into the vapor transfer channel (71 ) that located within the lever guard (70) on the body (20) reaching the rear part of the body (20) with passing through the body (20), and it opens to the vapor return hose connection element (90). During refueling, thus, enables the vaporized fuel vapor from the tank to be recovered back into the system. Mentioned lever guard (70) is fixed onto the body (20) through at least one, preferably two, lever guard connection parts (700).

[0093] Figure 2 provides a cross-sectional view of the spout (10). The spout (10) contains a filling channel (12) which enables the transfer of fluid from the body (20) to the outside. The spout (10) includes a spout vacuum channel (110) located along the length of the spout (10), and mentioned spout vacuum channel (110) positioned where the bottom section of the filling channel (12) when during filling. The mentioned spout vacuum channel (110) is an open end towards the atmosphere which functioning as a level detection aperture (11 ), that located at the tip of the spout (10).

[0094] In the preferred embodiment of the invention, comprises at least one drip stop element (15) located on the spout (10) over the filling channel (12) to prevent dripping that may occur when the flow of the fuel nozzle (N) is cut off. The mentioned drip stop element (15) functions as a valve and allows the passage of fluid when subjected to the pressure of the fluid conveyed by the automatic pump.

[0095] In the preferred embodiment of the invention, the spout (10) is produced as a single piece through an extrusion process, and its outer surfaces are later processed by a machine. Within this context, the end section of the spout vacuum channel (110) extending along the spout (10) that located within the body (20) is sealed with an aperture inner plug (112). The relationship between the spout vacuum channel (110) and the body (20) is established through the spout vacuum channel opening (111 ) that is created in at least one region of the spout vacuum channel (110). Spout sealing elements (100) are located at least two edges of the mentioned spout vacuum channel opening (111). The invention includes a vapor inner channel (33) which is a recessed channel that located in the area between these mentioned spout sealing elements (100). This arrangement enables continuity of the spout vacuum channel opening (111 ) that located at the lower part of the spout (10) to the upper portion of the body

[0096] (20).

[0097] In the preferred embodiment of the invention, the mentioned detection inter channel

[0098] (21 ) is preferably a channel formed on the body (20), and it allows the level detection aperture (11 ) to open into the section where the suction check valve (55) is located on the body (20).

[0099] The mentioned spout sealing element (100) can be located both outside surface of the spout (10) and / or inside surface of the body (20). The invention includes preferably three spout sealing element (100), providing both sealing during vacuum generation and preventing fluid leakage.

[0100] Figure 5 provides a detailed drawing illustrating the connection between the mentioned spout (10) and the body (20). In the preferred embodiment of the invention, the spout (10) contains at least one fixing opening (13). Contact is established on the mentioned fixing opening (13) by using at least one fixing screw (14) through the body (20).

[0101] In the preferred embodiment, the mentioned fixing screw (14) is a set screw. In an alternative configuration of the invention, after fixation with the screw, a press-fit can be applied to ensure the connection between the body (20) and the spout (10) remains intact.

[0102] The cross-sectional view of the spout (10) according to the invention is shown in Figure 3. In this context, the mentioned filling channel (12) includes a spout flat surface (101 ), which extends along the length of the spout (10) as flat surface. In the preferred embodiment, the mentioned spout flat surface (101 ) extends coaxially with the filling channel (12). In the preferred embodiment, the level detection aperture (11 ), which has at least one flat surface shape, extends parallel to the spout (10) along with the spout flat surface (101 ). The mentioned level detection out form (102) is located at the lower portion of the spout (10), and this form constitutes the edge sidewalls of the spout level detection aperture (11 ) and it formed with the extrusion process of the spout (10). The spout flat surface (101) is formed by keeping these sections filled, an improvement in flow rate has been achieved.

[0103] The surface of the opening forming the filling channel (12) has been increased, thereby enhancing the flow within this section by incorporating a shifted center (non-concentric structure) of the opening, influenced by the presence of the filling channel (12) and the spout flat surface (101) of the spout (10). The external shape of the spout (10) has been improved while maintaining its overall geometry.

[0104] In Figure 3, a sectional view of the drip stop element (15), and in Figure 4, a representative top view of the drip stop element (15) is provided. The drip stop element (15) preferably comprises at least one drip stop body (150), a spring body (151 ), and a drip stop plug (152). The mentioned spring body (151 ) is positioned on the drip stop body (150), and the outer shape of the drip stop body (150) is similar / mutual to the form of the filling channel (12). The inner surface width of the filling channel (12) is equal to or larger than the outer surface of the drip stop body (150). The drip stop body (150) is positioned inside the filling channel (12).

[0105] The spring body (151 ) is in the form of a continuous spiral spring with a uniform diameter, end spring (1510) section that is positioned one end of the spring body (151 ) has small diameter than mention uniform diameter section. The spiral form of the spring body (151 ) continuously towards the end spring (1510) section. There is a conical tip (1511 ) in the transition section between the diameter of the spring body (151 ) and the diameter of the end spring (1510). The conical tip (1511 ) continues as a single piece with the spring body (151 ) and decreases in diameter in each turn as it extends into the end spring (1510) section. The mentioned spring body (150) is a solid, continuous spiral shape. It includes an opening on the inside. The spring body (151 ) can be adhered to the drip stop body (150), or the drip stop body (150) can be produced over-molded onto the spring body (151) which is made of plastic material.

[0106] The drip stop plug (152) is positioned in the opening in the end spring (1510) section, closing the opening in the end spring (1510) section. In alternative embodiments of the invention, the drip stop plug (152) can extend as a single piece with the end spring (1510), and the drip stop plug (152) can be made of the same material as the spring body (151).

[0107] The drip stop element (15) is positioned inside the filling channel (12), specifically where the drip stop plug (152) is positioned at the end of the filling spout (10). (The drip stopper plug (152) is oriented in the same direction as the flow.) The fluid that flowing into the spring body (151 ) applies force to the drip stop plug (152) and the conical tip (1511 ). Under this force, the spring body (151 ) flexes and it causes the spiral-shaped spring body (151 ) to expand and the spring body (151 ) gets a gapped form. The fluid passes through these gaps. When the fluid pressure is relieved, the spring body (151 ) returns to its initial position for preventing dripping by the movement of the free-flowing fluid in the nozzle (N).

[0108] In the preferred embodiment of the invention, the spring body (151) is made of metal wire and is in a spiral form, and it tapers conically towards from a uniform diameter to reaching an opening with a smaller diameter than the mentioned uniform diameter. In this way, it allows the one-way passage of pressurized fluid acting upon it due to spring resistance.

[0109] The drip stop body (150) of the invention includes, a matching / conjugate drip stop body bottom surface (1500) with the spout flat surface (101 ) on at least one of its surfaces. After the mentioned drip stop body (150) is positioned in the filling channel (12), the passage of non-pressurized fluid between the drip stop body (150) and the filling channel (12) is prevented.

[0110] In an alternative embodiment of the invention, at least one sealing element can be used between the drip stop body (150) and the filling channel (12).

[0111] In an alternative embodiment of the invention, the said drip stop element (15) can be used during the filling of products other than fuel, such as AdBlue®.

[0112] In a preferred embodiment of the invention, the drip stop element (15) is positioned close to the tip of the spout (10), near the body (20) section from the spout’s (10) curved structure.

Claims

CLAIMS1 . A fluid filling nozzle which is comprising a body (20) which composed of one or more parts, and including a spout (10) with a filling channel (12) that connected to said body (20) and allowing the passage of fluid; a drip stop element (15) that prevents fluid from dripping from the spout (10), which forms the outlet opening of the fluid, after the fluid flow is cut off characterized in that;Positioned within the mentioned filling channel (12) and to allow fluid passage based on the fluid pressure it comes into contact with; and it includesA drip stop body (150) with an outer diameter equal to or smaller than the opening area of the mentioned filling channel (12); a single-piece spiral-shaped spring body (151 ) with a conical shape that tapering in diameter towards the direction of fluid flow and mentioned spring body (151 ) associated with the mentioned drip stop body (150), with a diameter equal to the section in contact with the drip stop body (150).

2. A drip stop element (15) which is used in the spouts (10) of fluid filling nozzles to prevent the passage of unpressurized residual fluid according to the claim 1 , comprising a conical tip (1511 ) section as a single-piece with the spring body (151 ), which flexes in the direction of fluid flow to allow the passage of pressurized fluid, and a conical tip (1511 ) forms end spring (1510) section by decreasing in diameter.

3. A drip stop element (15) which is used in the spouts (10) of fluid filling nozzles to prevent the passage of unpressurized residual fluid according to the claim 2, comprises at least one drip stop plug (152) to seal the opening in the end spring (1510) section that located in the direction of fluid flow.

4. A drip stop element (15) which is used in the spouts (10) of fluid filling nozzles to prevent the passage of unpressurized residual fluid according to the claim 1 , comprises a spring body (151) whose length increases depending on the pressure force applied to the drip stop plug (152) based on the pressure of the fluid conveyed to the fluid filling nozzle.

5. A drip stop element (15) which is used in the spouts (10) of fluid filling nozzles to prevent the passage of unpressurized residual fluid according to the claim 1 , comprises a drip stop body (150) positioned with its center shifted relative to the outer diameter of the spout (10), and includes a drip stop body bottom surface (1500) in direct contact with the spout flat surface (101 ) of the filling channel (12).

Images