Fuel nozzle with vapour return line in the nozzle guard

Abstract

The invention relates in fuel nozzles (N) with a vapor return line that includes monolithic body (20), at least one vapor suction body (30) which associated with the mentioned body (20) that achieves vapor suction; a fuel nozzle (N) comprising at least one valve positioned within the mentioned body (20) to control fluid passage that associated with the fuel nozzle (N) for closing the mentioned vapor return line during the vertical position of the fuel nozzle (N), comprises a valve body (91 ) with an outer perimeter matching the opening shape remaining inside the body (20); a vapor outlet opening (931) which positioned on the rear side of the valve body (91 ), perpendicular to the axis of the inner opening (910); at least one vapor inlet opening (911) which positioned on the mentioned valve body (91), which located in the lower part when the body (20) is held in a horizontal position.

Description

[0001] FUEL NOZZLE WITH VAPOUR RETURN LINE IN THE NOZZLE GUARD

[0002] FIELD OF THE INVENTION

[0003] The invention relates to a fuel nozzle that is particularly relevant to the fuel systems utilizing vapor recovery lines; the vapor recovery line is capable of being opened or closed based on the position of the fuel nozzle.

[0004] The invention relates to an innovation that enables the opening and closing of the vapor return line through a valve positioned within the body of the fuel nozzle.

[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 / filling 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 used for transferring fluids like diesel, which are not volatile, there is no need for the use of a vapor return line. However, when transferring volatile fluids like gasoline the fluid tends to vaporize during the filling process from the reservoir (such as a vehicle tank). The rate of vaporization can vary depending on environmental conditions. It is important to remove the vapor from the environment due to the easy ignitability of gasoline vapor. Especially in the case of volatile fuels like gasoline, this situation poses a dangerous scenario in terms of environmental pollution and explosion risks. Therefore, a vapor recovery line is present in fuel nozzles used during the transfer of volatile fuels for collecting and recovering the evaporated gasoline from the tank. This recovery process not only offers an environmentally friendly solution but also reduces the risk of combustion / explosions.

[0011] In these systems, a coaxial fuel hose is used to facilitate vapor return. Mentioned hoses includes a vapor return line the inside, while the outer part of the hose contains the passage for the fluid. The coaxial hose can be appropriately connected at the rear of the nozzle. A vapor return implemented fuel nozzles, includes a channel structure at the junction of the body and the spout, which aligns with the fuel tank opening during refueling. A vacuum is applied to the vapor return line on the nozzle via the hose during filling. This process effectively removes vaporized gasoline from the environment, ensuring its safe return and recycling. In state of the art, applying a vacuum to the vapor return line is managed through the dispenser, and the moment the fuel nozzle is picked up from the dispenser is detected using a sensor on the dispenser. Once detected, vacuum is applied to the vapor return line, and the vacuum continues to be applied to the line, even if the refueling process hasn't started yet.

[0012] The USPTO patent document with publication number US5273087A describes a fuel nozzle structure that enables vapor recovery. In this particular fuel nozzle. There isn't any valve structure in this fuel nozzle. The vapor return line is controlled through an electromagnetic valve from the dispenser in the invention. The valves used in this setup are triggered based on pressure drops in the fuel line. When the vapor line is closed, the pressure reaches a pre-defined value. Additionally, issues related to the sealing of these valves can arise. Leakage problems can be encountered in these related sections, leading to fuel leakage into the vacuum line.

[0013] The EPO patent document with publication number EP0703186B1 discloses a valve structure in a fuel nozzle that operates in conjunction with magnets located on the fuel dispenser. Permanent magnet generators (PMG) are utilized in this valve setup. The valve controls the flow of the fuel vapor line where vapor from the vehicle's tank passes through the nozzle body, either opening or closing the fuel vapor flow. This way, the amount of remaining vapor after the flow stops is significantly lower than the electromagnetic valve solution mentioned earlier. While the valve described in this patent has a simple design and low manufacturing cost; however, it requires a specialized tool for installation and removal. Additionally, the production cost is higher due to the need for specialized vapor lines within the spout / body structure.

[0014] In essence, the existing technology lacks a practical and cost-effective solution for controlling the opening and closing of the vapor return line.

[0015] As a result, all abovementioned problems have made it necessary to make an improvement in the relevant technical field.

[0016] AIM OF THE INVENTION

[0017] The present invention aims to eliminate the abovementioned problems and to make a development in the relevant technical field. The main objective of the invention is to present a fuel nozzle structure, designed to enable the return of vaporized fuel from the environment only during fuel filling.

[0018] Another objective of the invention is to provide a practical and economical solution by allowing the vapor return line of the fuel nozzle to open when the fuel nozzle is in the filling position, whether parallel to the ground or in a vertical position.

[0019] Another objective of the invention is to reduce the possibility of malfunction in the system that manages the vapor return line.

[0020] Another objective of the invention is to create a fuel nozzle with more compact dimensions by positioning the vapor return valve inside the fuel nozzle body.

[0021] Another objective of the invention is to present a safer and more economical fuel nozzle structure.

[0022] BRIEF DESCRIPTION OF THE INVENTION

[0023] The invention is related to novelty in fuel nozzles with vapor return line so as to fulfil all aims mentioned above and will be obtained from the following detailed description

[0024] In fuel nozzles with a vapor return line that includes monolithic body, at least one vapor suction body which associated with the mentioned body that achieves vapor suction; a fuel nozzle comprising at least one valve positioned within the mentioned body to control fluid passage that associated with the fuel nozzle for closing the mentioned vapor return line during the vertical position of the fuel nozzle characterized in that; of the vapor return valve, which is said valve comprises; a valve body with an outer perimeter matching the opening shape remaining inside the body; an inner opening which has a cylindrical form within the mentioned valve body which is non-coaxial with the valve body; a ball positioned within the inner opening that capable of blocking or allowing gas passage within the inner opening that displaceable according to the position of the body; at least one vapor inlet opening which positioned on the mentioned valve body, which located in the lower part when the body is held in a horizontal position; a vapor outlet opening which positioned on the rear side of the valve body, perpendicular to the axis of the inner opening; at least one liquid passage opening on the valve body to allow the passage of the liquid transferred from the coaxial hose to the body. Thus, the vapor return line is closed by keeping the fuel nozzle in an upright positioning transfer from dispenser to fuel tank or from fuel tank to dispenser). However, when the fuel nozzle is held in a different position, such as when it is lowered for refueling purposes, the vapor return line opens.

[0025] In another preferred embodiment of the invention, it comprises a front cap that closes the opening in at least one surface of the inner opening of the valve body and enables the positioning of the ball inside it.

[0026] In another preferred embodiment of the invention, it comprises at least one front cap sealing element that ensures the seal between the valve body and the front cap.

[0027] In another preferred embodiment of the invention, it comprises a vapor return hose fixing element which one-piece with the mentioned valve body to ensure the connection of the vapor return line coming from the coaxial hose to the valve body.

[0028] In another preferred embodiment of the invention, it comprises a back cap contains a vapor outlet opening that is aligned with the vapor return hose fixing element.

[0029] In another preferred embodiment of the invention, it comprises at least one back cap sealing element ensuring the seal between the valve body and the back cap.

[0030] In another preferred embodiment of the invention, it comprises vapor return valve sealing element positioned between the valve body and the body to ensure the seal between them. Mentioned vapor return valve sealing element which is an o-ring, which is positioned in a channel created on the outer surface of the valve body or in a channel created on the inner surface of the body.

[0031] In another preferred embodiment of the invention, it comprises at least one fixing nut which is positioned on the rear side of the mentioned valve body to ensure that fixing the position of the valve body within the body.

[0032] In another preferred embodiment of the invention, the valve body made of plastic material.

[0033] In another preferred embodiment of the invention, it characterized in that; the front cap and the back cap made from brass material to prevent wear due to ball movement. In another preferred embodiment of the invention, it comprises a lever guard which has a vapor transfer channel inside to enable vapor passage between vapor suction body and valve body.

[0034] 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.

[0035] BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 provides the cross-sectional view of the fuel nozzle.

[0037] Figure 2 provides a cross-sectional view of the vapor return valve.

[0038] Figure 3 shows a detailed drawing is provided from the section where the vapor return valve of the fuel nozzle is located.

[0039] 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.

[0040] DESCRIPTION OF THE REFERENCES IN FIGURES

[0041] 10. Spout

[0042] 100. Spout sealing element

[0043] 11 . Level detection aperture

[0044] 12. Filling channel

[0045] 20. Body

[0046] 200. Hose fixing means

[0047] 21 . Detection inter channel

[0048] 30. Vapor suction body 31 . Vapor suction body front opening

[0049] 32. Vapor suction body internal opening

[0050] 40. Plate piston

[0051] 41 . Piston motion body

[0052] 42. Piston side body

[0053] 43. Plate piston spring

[0054] 44. Rollers

[0055] 45. Plate piston inner spring

[0056] 50. Automatic shut-off mechanism body

[0057] 51 . Membrane

[0058] 52. Motion transfer bracket

[0059] 53. Membrane fixation means

[0060] 54. Membrane spring

[0061] 55. Suction check valve

[0062] 60. Diffuser

[0063] 61 . Diffuser body

[0064] 62. Diffuser cap

[0065] 70. Lever guard

[0066] 700. Lever guard connection part

[0067] 71 . Vapor transfer channel

[0068] 80. Lever

[0069] 81 . Lever pin

[0070] 90. Vapor return valve 900. Vapor return valve sealing element

[0071] 91 . Valve body

[0072] 910. Inner opening

[0073] 911 . Vapor inlet opening

[0074] 912. Vapor return hose fixing element

[0075] 913. Liquid passage opening

[0076] 92. Front cap

[0077] 920. Front cap sealing element

[0078] 93. Back cap

[0079] 930. Back cap sealing element

[0080] 931 . Vapor outlet opening

[0081] 94. Ball

[0082] 95. Fixing nut

[0083] N. Fuel nozzle

[0084] DETAILED DESCRIPTION OF THE INVENTION

[0085] In this detailed description, novelty in fuel nozzles (N) with vapor return line is described by means of examples only for clarifying the subject matter such that no limiting effect is created.

[0086] 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.

[0087] The invention relates in fuel nozzles (N) with a vapor return line that includes monolithic body (20), at least one vapor suction body (30) which associated with the mentioned body (20) that achieves vapor suction; a fuel nozzle (N) comprising at least one valve positioned within the mentioned body (20) to control fluid passage that associated with the fuel nozzle (N) for closing the mentioned vapor return line during the vertical position of the fuel nozzle (N), characterized in that; of the vapor return valve (90), which is said valve comprises; a valve body (91 ) with an outer perimeter matching the opening shape remaining inside the body (20); an inner opening (910) which has a cylindrical form within the mentioned valve body (91) which is non-coaxial with the valve body (91 ); a ball (94) positioned within the inner opening (910) that capable of blocking or allowing gas passage within the inner opening (910) that displaceable according to the position of the body (20); at least one vapor inlet opening (911 ) which positioned on the mentioned valve body (91 ), which located in the lower part when the body (20) is held in a horizontal position; a vapor outlet opening (931 ) which positioned on the rear side of the valve body (91 ), perpendicular to the axis of the inner opening (910); at least one liquid passage opening (913) on the valve body (91 ) to allow the passage of the liquid transferred from the coaxial hose to the body (20).

[0088] 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 (95).

[0089] 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 on the piston motion body (41 ), and the lever pin (81 ) is positioned within the mentioned recess. 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).

[0090] 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.

[0091] 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).

[0092] 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 ).

[0093] 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 ). 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).

[0094] 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).

[0095] 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.

[0096] 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).

[0097] 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 valve (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).

[0098] In the scope of the invention, the vapor return valve (90) is positioned within the body (20) of the fuel nozzle (N), and it closes the vapor return line on the fuel nozzle (N) when the fuel nozzle (N) is held in a vertical position. This ensures that the vapor return line remains closed during the transportation process of the fuel nozzle (N) to properly positioned to storage location at the dispenser.

[0099] Figure 2 provides a detailed drawing of the vapor return valve (90). The vapor return valve (90) consists of at least one part, including a valve body (91 ) with an inner opening (910) in its internal section. There is a vapor return hose fixing element (912) in the outlet section of the mentioned valve body (91 ) to allow the attachment of the vapor return hose. The mentioned vapor return hose fixing element (912) is integrated with the valve body (91 ).

[0100] The valve body (91 ) is cylindrical in shape and contains at least one vapor inlet opening (911) leading to the inner opening (910). It includes is at least one back cap (93) and at least one front cap (92) structure to seal the inner opening (910). Preferably, the inner opening (910) is cylindrical and includes at least one ball (94) inside. The diameter of the inner opening (910) is larger than the diameter of the ball (94). The front cap (92) closes the opening that allows the positioning of the ball (94) inside the valve body (91 ). In this context, the front cap (92) is sealingly associated with the valve body (91 ) using at least one front cap sealing element (920). The mentioned front cap sealing element (920) is preferably an O-ring and can be positioned in a channel opened on the valve body (91 ) or the front cap (92).

[0101] At least one back cap (93) is positioned on the valve body (91 ), ensuring the closure of the opening in the region located at the area of the vapor return hose fixing element (912), which constitutes the outlet part of the valve body (91 ). The mentioned back cap (93) is sealingly associated with the valve body (91 ), and it is further sealed by a back cap sealing element (930). Preferably, on the back cap (93), at least one vapor outlet opening (931 ) is located, preferably at its center.

[0102] The ball (94) located within the valve body (91 ) can move freely within the inner opening (910). The vaporized fuel, drawn through the vapor suction body (30) of the fuel nozzle (N), reaches the vapor return valve (90) through the vapor transfer channel (71 ) that located preferably in the lower part of the lever guard (70). It reaches the inner opening (910) and further goes to the vapor outlet opening (931 ) through the vapor inlet opening (911) of the vapor return valve (90). In the scope of the invention, the vapor outlet opening (931 ) is closed through the ball (94) which this situation depends on the position of the fuel nozzle (N) for allowing the vapor suction line on the system to be closed via the fuel nozzle (N).

[0103] The mentioned vapor outlet opening (931 ) is closed in a vertical position (like position of the vapor return hose fixing element (912) below) thanks to the vapor return valve

[0104] (90).

[0105] As seen in Figure 2, cylindrical shaped the valve body (91 ) which has cylindrical internal opening (910) is not concentric to each other. The diameter of the internal opening (910) is at least 1.5 times that of the ball (94). Within this asymmetric structure, the vapor inlet opening (911 ) is positioned in the lower part of the valve body

[0106] (91 ), while there is a liquid passage opening (913) in the section opposite the vapor inlet opening (911 ). This arrangement allows the fluid entering through opening of the hose fixing means (200) to pass through the valve body (91 ) of the vapor return valve (90) and reach the diffuser (60). Figure 3 provides a drawing which is illustrating the position of the vapor return valve (90) within the body (20). At least one vapor return valve sealing element (900) is positioned between the valve body (91 ) and the body (20) to ensure a seal. In the preferred configuration, the vapor return valve sealing element (900) is at least one O- ring that can be positioned within a channel opened on either the valve body (91 ) or the body (20) to provide the necessary sealing.

[0107] The mentioned valve body (91 ) is secured within the body (20) using at least one fixing nut (95) which located at the rear section. In the preferred configuration, the mentioned fixing nut (95) is made of plastic material.

Claims

CLAIMS1 . In fuel nozzles (N) with a vapor return line that includes monolithic body (20), at least one vapor suction body (30) which associated with the mentioned body (20) that achieves vapor suction;A fuel nozzle (N) comprising at least one valve positioned within the mentioned body (20) to control fluid passage that associated with the fuel nozzle (N) for closing the mentioned vapor return line during the vertical position of the fuel nozzle (N), characterized in that; of the vapor return valve (90), which is said valve comprises;A valve body (91 ) with an outer perimeter matching the opening shape remaining inside the body (20);An inner opening (910) which has a cylindrical form within the mentioned valve body (91) which is non-coaxial with the valve body (91 );A ball (94) positioned within the inner opening (910) that capable of blocking or allowing gas passage within the inner opening (910) that displaceable according to the position of the body (20);At least one vapor inlet opening (911 ) which positioned on the mentioned valve body (91 ), which located in the lower part when the body (20) is held in a horizontal position;A vapor outlet opening (931 ) which positioned on the rear side of the valve body (91 ), perpendicular to the axis of the inner opening (910);At least one liquid passage opening (913) on the valve body (91 ) to allow the passage of the liquid transferred from the coaxial hose to the body (20).

2. Fuel nozzle (N) that allows the vapor return line to be closed according to its position during use according to the claim 1 , comprises a front cap (92) that closes the opening in at least one surface of the inner opening (910) of the valve body (91 ) and enables the positioning of the ball (94) inside it.

3. Fuel nozzle (N) that allows the vapor return line to be closed according to its position during use according to the claim 2, comprises at least one front cap sealing element (920) that ensures the seal between the valve body (91 ) and the front cap (92).

4. Fuel nozzle (N) that allows the vapor return line to be closed according to its position during use according to the claim 1 , comprises a vapor return hose fixing element (912) which one-piece with the mentioned valve body (91 ) to ensure the connection of the vapor return line coming from the coaxial hose to the valve body (91 ).

5. Fuel nozzle (N) that allows the vapor return line to be closed according to its position during use according to the claim 1 , comprises a back cap (93) contains a vapor outlet opening (931 ) that is aligned with the vapor return hose fixing element (912).

6. Fuel nozzle (N) that allows the vapor return line to be closed according to its position during use according to the claim 5, comprises at least one back cap sealing element (930) ensuring the seal between the valve body (91 ) and the back cap (93).

7. Fuel nozzle (N) that allows the vapor return line to be closed according to its position during use according to the claim 1 , comprises vapor return valve sealing element (900) positioned between the valve body (91) and the body (20) to ensure the seal between them.

8. Fuel nozzle (N) that allows the vapor return line to be closed according to its position during use according to the claim 7, characterized in that; the vapor return valve sealing element (900) which is an o-ring, which is positioned in a channel created on the inner surface of the body (20).

9. Fuel nozzle (N) that allows the vapor return line to be closed according to its position during use according to the claim 7, characterized in that; the vapor return valve sealing element (900) which is an o-ring, which is positioned in a channel created on the outer surface of the valve body (91 ).

10. Fuel nozzle (N) that allows the vapor return line to be closed according to its position during use according to the claim 1 , comprises at least one fixing nut (95) which is positioned on the rear side of the mentioned valve body (91 ) to ensure that fixing the position of the valve body (91 ) within the body (20).11 . Fuel nozzle (N) that allows the vapor return line to be closed according to its position during use according to the claim 1 ; characterized in that, the valve body (91) made of plastic material.

12. Fuel nozzle (N) that allows the vapor return line to be closed according to its position during use according to the claim 1 , characterized in that; the front cap (92) and the back cap (93) made from brass material to prevent wear due to ball (94) movement.

13. Fuel nozzle (N) that allows the vapor return line to be closed according to its position during use according to the claim 1 , comprises a lever guard (70) which has a vapor transfer channel (71 ) inside to enable vapor passage between vapor suction body (30) and valve body (91 ).

Images