SI21998A - Container with selective inlet opening, in particular fuel tank of vehicles - Google Patents

Abstract

Thanks to the solution of the inlet opening (1) of the fuel tank the pumping of fuel into the tank can only be performed after inserting the correct supply pipe (55') of a predefined diameter, which prevents that for example the tank would be filled with gasoline instead of diesel fuel. On one end (11) inside the inlet opening (1) there is a guide ring (111) featuring at least one magnet (112) and an inlet opening (110), while on the other end (12) there is a locking mechanism (14), which prevents the access to the tank. Inside the specified inlet opening (11) there is a sleeve (12) inserted along the inlet which can be shifted along it and is held by the magnet (112), which encloses the internal cone-shaped section (155). The sleeve (15) can be shifted in the direction towards the tank only in the case when the correct supply pipe (55') has been inserted having its diameter adjusted to the size of the cone-shaped section (155), which leads to the shifting of the sealing mechanism (14) from the corresponding sealing surface (133) as well as release of the passage towards the tank. After removal of the pipe (55') thanks to the magnet (112) the sleeve (12) returns to its initial position of fitting to ring (111), while the locking mechanism (14) again fits the sealing surface (13) and locks the passage leading to the tank.

Description

AREX Manufacture of tools, appliances and services d.o.o Šentjernej

MPK ⁷ : B 60 K 15/00 B 60 K 15/04

F 17 B 03/00

F 17 B 06/00

Container with selective inlet nozzle, in particular the fuel tank of a motor vehicle

The invention relates to the field of transport, and in particular relates to the arrangement of storage tanks for motor vehicles. On the other hand, the invention can be categorized into the field of mechanical engineering, namely either to non-pressurized storage tanks for fuel, or. also procedures and devices for filling non-pressurized fuel tanks.

In doing so, the invention is based on the problem of how to design the inlet mouth of a fuel tank so that, while maintaining the other advantages of the known solutions, such as e.g. evaporative protection and the like, each time the fuel is fed into the tank only after inserting the supply pipe of the appropriate predefined diameter. Specifically, it is an object of the invention to design an inlet mouth of a diesel fuel tank in a motor vehicle that will allow the tank to be filled through a larger diameter inlet pipe and prevent the filling of a smaller diameter inlet pipe provided for refueling at gas stations.

Passenger cars and trucks currently used in traffic are usually equipped with either a gasoline or diesel engine and include a suitable container for each purpose. In filling the tank, each user must, in principle, be careful about which fuel he chooses. Despite a number of measures that can contribute to e.g. at least the visual resolution between refueling devices and diesel refueling devices, in practice, proves that the possibility of a mistake in the choice of fuel by such means alone cannot simply be ruled out. There are several reasons for this and they are also relatively logical and practical. The first reason is that refueling at modern gas stations is left to the drivers themselves, who at the moment of choosing the type of fuel and the corresponding device may be quite unbearable due to being overloaded with other problems or fatigue after prolonged driving. Some drivers are also utter disbelief in terms of understanding engine performance and fuel knowledge that, by the way, are virtually never in direct contact, so they do not even think about choosing a fuel, but decide as they are taught or taught. according to the directions. On top of that, not many drivers today are occasionally using diesel vehicles, but occasionally petrol-fueled vehicles. Nevertheless, it is an indisputable fact that any mistake in the choice of fuel is associated with relatively unfavorable consequences. The least of the following is the inoperability of the vehicle for further driving, followed by emptying the fuel tank and cleaning all components of the fuel supply line from the tank to the engine and, if necessary, cleaning and / or replacing some of the engine parts. As a result, it is therefore quite an inconvenience and can also cost.

In addition to the visual aforementioned visual recognition between gasoline refueling and diesel refueling facilities, there is also essentially a mechanical guard that can be prevented from eg Diesel fuel was loaded into the vehicle with a petrol engine. It is a simple measure that is feasible, for example. thanks to international standardization of outlet pipe diameters for refueling facilities at gas stations. Accordingly, the diameter of the said outlet hose at all service stations is the same, with the diameter being less than the diameter of the outlet hose at the petrol dispenser. If, accordingly, motor vehicle manufacturers adjust the inlets of the fuel tanks to the diameter intended for refueling, then it is simply not possible to insert a diesel fuel outlet pipe into the tank because it is too thick. It is, of course, a simple and effective measure that, in practice, discourages many users from loading diesel with a petrol engine. However, such a measure can only have an effect on petrol engine users. Diesel-engined vehicles are fitted with a receptacle in which the inlet diameter permits the receipt of a larger diameter outlet pipe for refueling diesel fuel and, in any case, of a smaller diameter outlet pipe than that used for refueling. In this case, such a measure undoubtedly fails, fuel choices are possible and relatively common in practice.

Fuel tanks, including the design and design of inlets, are also covered by patent literature. Thus, e.g. JP 02249724A (Fuji Heavy Ind. Ltd.) proposed sealing of the outlet pipe at the fuel dispenser, thereby sealing the gap between the wall of the inlet port of the fuel tank and the discharge pipe of the fuel dispenser during refueling. This prevents the escape of vapors or droplets while refueling and does not prevent the dispensing of e.g. gasoline into the diesel tank. Furthermore, JP 09286247A (Mitcubishi Motor Corp.) addresses the problem of preventing damage to the metal parts of the inlet orifice by inserting and moving the fuel pipe outlet. Also, thanks to the measures suggested in this resource, the problem posed in the beginning cannot be resolved in any way.

JP 07096757A (Nissan Motor Co. Ltd.), on the other hand, describes a fuel tank that is provided with an additional lid in the area of the inlet opening to prevent fuel from evaporating after opening the inlet opening itself. Further, a sleeve is provided in the area of the inlet, which includes a seat for the outlet pipe of the refueling device. Said sleeve is movable in said inlet of the fuel tank, so that after insertion of the outlet pipe it is displaced and through suitable means of transmission to allow fuel dispensing to begin at all. In this way, they ensure that refueling is possible only after the outlet pipe of the refueling unit is satisfactorily located in the inlet mouth of the fuel tank, and prior to that refueling is not possible. It is obvious, therefore, that even with this conception in mind, the problem posed initially remains completely unsolved.

The present invention relates to a container having a selective inlet mouth, in particular to a fuel tank in a motor vehicle, in particular to a diesel fuel tank, wherein said mouth on the side of the container comprises a holding body and a detachable closure body against the corresponding sealing surface. , on the opposite side, the inlet port for receiving the outlet pipe of the fuel dispenser at each time. According to the invention, the container is provided with an inlet mouth, which is provided with a guide at the end facing the container, with a guide on which there is a front sealing surface which is adapted to engage said closure body and which further comprises a centrally arranged guide passage and facing the inlet opening. nased. At the same time, at the opposite end, the inlet mouth of the container is provided with a guide ring comprising said inlet opening and at least one magnet incorporated within the area of this seat. At the same time, inside the mouth is inserted on one side along the latter movable and guided through said guide, and on the other hand, a coil adapted for magnet engagement is inserted into its guide passage through said guide passage and connected to the shut-off body in terms of opening only. - by the longitudinal movement of the sleeve in the direction of the container and the automatic closing thereof when the sleeve is moved in the opposite direction, said sleeve being provided with an inner conical section which is narrowed in the direction from the inlet to the guide, so that the diameter thereof the tapered section at the narrower end larger than the diameter of the irregular fuel outlet pipe and smaller than the diameter of the regular fuel outlet pipe and the diameter of the tapered area at the wider end larger than the diameter of the regular fuel outlet pipe. In a preferred embodiment, the regular fuel line is the discharge pipe of the diesel fuel dispenser and the irregular fuel pipe is the discharge pipe of the petrol dispenser. In general, the sleeve, either alone or as such, may consist of material that allows it to co-operate with a pre-permanent magnet, and in a preferred embodiment, said sleeve is only at least partially surrounded by a sleeve of material that allows co-operation with the pre-permanent magnet. It is further preferred that a clamp is arranged inside the sleeve between the conical section and the guide ring, which is adapted to fit on a regular outlet pipe when inserted in the sleeve. It is further advantageous if the sleeve is provided with an anti-roll seat on the guide facing the seat and, thanks to the magnet, is held in contact with the seat ring on the guide ring, the locking body rests on the guide. Further, after contacting the regular outlet pipe in the area of its inner conical section, the sleeve is movable along the mouth in the direction of the container, by moving the closure body from the associated outlet, through contact with said regular outlet pipe and slipping of the guide attachment through the guide passage of the guide and the shut-off body. surfaces In one embodiment, the closure body is designed as a flap that pivots in the direction of the container. In this case, in the said guide of the mouth, it is mounted against the shut-off body and facing the latter acting magnet, preferably a permanent magnet acting on the shut-off body with a force of attraction. Similarly, the magnet in the guide ring is designed to be a permanent magnet which, either on the sleeve or the corresponding sleeve with which the sleeve is surrounded, acts with a force of attraction. The said prison authority may also be otherwise implemented, in particular, e.g. easily conical and movable in the longitudinal direction of the inlet mouth by means of a sleeve.

The invention will be explained in further detail on the basis of specific examples of the inlet mouth of a diesel fuel tank in a motor vehicle, which, despite the aforementioned concreteness, generally do not constitute any restriction on the scope of the invention per se. The above examples are illustrated in the drawing, where FIG. 1 is a first embodiment of an inlet mouth of a container according to the invention; 2 is an inlet mouth according to FIG. 1 during refueling of the diesel fuel, FIG. 3 is an inlet mouth according to FIG. 1 while attempting to refuel gasoline, FIG. 4 is a further embodiment of the inlet mouth of a container according to the invention.

The fuel tank, in the context of the problem set forth above, preferably a diesel fuel tank in a motor vehicle, comprises an inlet mouth 1, which in the shown embodiment is tubularly designed and at one end 12 is connected to a non-shown fuel tank on the other side of this tank. and the projecting end 11 comprises an inlet opening 110 for receiving the outlet pipe 55 'or. 55 fuel dispensers. Herein, FIG. 2 shows a regular outlet pipe 55 ', in the specific case of the outlet pipe of a diesel fuel dispenser, in FIG. 3 is an irregular outlet pipe 55, in the specific case of a gasoline dispenser outlet. Also in FIG. 2 and 3 illustrate that, as in practice, the diameter of the gasoline outlet pipe 55 is smaller than the diameter of the diesel fuel outlet 55 ', and the diameters of the two outlet pipes 55' and 55 are generally typified or respectively. standardized.

At said end 12 of the tubular nozzle 1 on the side of the fuel tank, the nozzle 1 is provided with a guide 13, which is provided on one side with a guide passage 130 for receiving in the nozzle 1 and, along the latter, a movable sleeve 15, and on the other, with a suitable sealing sleeve. surface 133 for engaging the closure body 14, by which, except during the refueling process itself, the said end 12 of the mouth 1 adjacent to the fuel tank is closed. Thanks to the said closure body 14, the leakage of the fuel is prevented, which could be due to different dynamic, centrifugal or inertial forces while transporting the fuel tank, i.e. while driving the vehicle, it also prevents the evaporation of fuel that would otherwise be present.

In the embodiment of FIG. 1 to 3, said guide 13 is pressed into the corresponding end 12 of the tubular orifice in a relatively simple manner 1. The closure body 14 is designed as a cover 14 which is pivotably supported and at the same time spring-supported at said end 12 of the orifice 1 so that in the normal position ( Fig. 1) seals against the fuel tank facing the sealing surface 133 of the guide 13, and during refueling (Fig. 2) it can be removed from the said position by means of a movable sleeve 15 mentioned along the mouth 1. the body 14 on the associated sealing surface 133 is particularly effectively held in place by a permanent magnet 131, which also ensures its flawless fit on said surface 133.

At the opposite end 11 of the mouth 1 according to the invention, there is an inlet opening 110 adapted for the inlet of the outlet pipe 55 ', 55 of the fuel dispenser into the mouth

1. In both embodiments (according to FIGS. 1 - 3 and FIG. 4), a tapered inlet opening 110 is provided in the guide ring 111, which is also provided with at least one permanent magnet 112 and, in addition, a suitable support. 113, to which, as it moves along the mouth 1, e.g. towards the fuel tank or away from it the leaning sleeve 15. Said permanent magnet 112 is inverted or inverted. in the direction of the fuel tank, so that it acts against said sleeve 15 by a suitable force so that the latter is attracted. Accordingly, the sleeve 15 is in the normal position - except during refueling - thanks to the magnet 112 held in the associated seat 113 and thus is in its upper position, so that the closure body 14 can be closed or closed. arranged in contact with the corresponding bearing surface 133 of the guide 13.

In both cases, the sleeve 15 is guided in the mouth 1 itself, namely through the inner surface of the wall thereof, and on the other, thanks to its cylindrical guide extension 152, also in said guide 13, specifically by means of the passage 130 already mentioned. 15 in the case of FIG. 1 to 3 comprises a seat 153 which is adapted to fit on the corresponding seat 135 of said guide 13.

The sleeve 15 further comprises an inner tapered section 155, with a further clamp 156 available, which in the example of FIG. 4 is mounted directly in the corresponding sleeve 157 of magnetic material, which is suitable for co-operation with the magnet 112. By making said sleeve 157 available, all other parts may be derived from materials not attracted by the magnet 112. However, in principle, different embodiments are also possible to secure the sleeve 15 to the ring 111.

Said inner conical section 155 of sleeve 15 comprises a narrower end 155 and a wider end 155 '. In this case, the inner diameter of section 155 at its narrower end 155 is larger than the diameter of the irregular outlet pipe 55, in this case the standardized outlet pipe for refueling and smaller than the diameter of the regular outlet pipe 55 ', in the case of the standardized outlet pipe for refueling diesel. , while the diameter of section 155 at its wider end 155 'is larger than the diameter of standardized outlet pipe 55' for refueling. According to the invention, the length of said sleeve 15, as well as the mouth 1 itself, is at least such that, after insertion of the standard outlet pipe 55 ', 55, the dispenser for gasoline and / or gas. of diesel fuel, said outlet pipe 55 ', 55 terminate in front of the shut-off body 14.

Said clamp 156 is provided with a suitable inner conical surface or other suitable means which, when a regular outlet pipe 55 'enters through the clamp 156, provides a grip between said pipe 55' and only the sleeve 15, thereby ensuring proper grip of the sleeve 15 and regular outlet pipes 55 ', in this case standardized pipes 55' larger diameter intended for dispensing diesel fuel.

In FIG. 4 also shows a lid that can be screwed onto the mouth 1, more specifically, the end of the mouth 11 extending outwards from the container. The lid 3 is provided with an internal thread 39, while an outer thread 119 is provided on the mouth. the embodiment exemplifies the locking body 14, which is tapered and movable in the axial direction of the mouth 1.

When the fuel tank is closed, e.g. while driving the vehicle or also during stops, in short, except in the case of refueling, the sleeve 15 is held in its upper position by virtue of the magnet 112 as in FIG. 1, 2 and 4, wherein its guide nozzle 152 is held in the passage 130 of the guide 13, which is closed due to the attachment of the shut-off body 14 on the sealing surface 133. This prevents fuel leakage and evaporation.

During the refueling of the diesel fuel (Fig. 2), the outlet pipe 55 'for the diesel fuel is inserted through the inlet opening 110 and then through the clamp 156 inside the sleeve 15, where it hits the conical section 155 somewhere between the wider end 155' and the narrower end 155, which causes the sleeve 15 to separate the guide ring 111 or. from magnet 112, and moves in the direction of the container. In this case, the guide nozzle 152 of the sleeve 15 slides through the passage 130 of the guide 13 and removes the locking body 14 from the sealing surface 133, where in the embodiment of FIG. 1 to 3, the displacement of the sleeve 15 is limited by the strands 153 and 135. After disengaging the shut-off body 14, the diesel fuel can flow freely from the outlet pipe 55 'into the fuel tank. Upon completion of the dispensing, the outlet pipe 55 'is pulled out of the mouth 1, and, due to the clamp 156 and subsequently the magnet 112, the sleeve 15 returns to its starting position, i.e. in contact with the guide ring 111, which also returns the locking body 14 to the sealing surface 133. In the mouth 1 there is inserted the outlet pipe 55 of the refueling device, the hose 55 may otherwise enter completely through the inlet. 110 to the inside of the sleeve 15. However, the sleeve 15 does not move from its starting position, so the shut-off body 14 remains closed, making fuel dispensing impossible. This prevents the misfilling of the wrong fuel in a simple and efficient way, in particular the refueling of petrol into the diesel tank of a diesel vehicle.

Claims (11)

PATENT APPLICATIONS 1. A container having a selective inlet mouth (1), in particular a fuel tank in a motor vehicle, said mouth (1) on the side of the container comprising a holding body (14) held in the direction of the container and moving towards the container (14), on the opposite side, the inlet opening (110) for receiving the outlet pipe (55 ', 55) of the fuel dispensing device available at each time, characterized in that the inlet mouth (1) is provided with a guide (12) at the container facing end (12). 13), comprising a guide passage (130), and which is provided with a sealing surface (133) adapted to engage the closure body (14), while the inlet mouth (1) on its opposite side extends from the container projecting to the projecting end (13). 11) provided with a guide ring (111) comprising an inlet opening (110) and at least one magnet (112), which is inserted one way along the inlet mouth (1) along the latter and can be moved through the guide (13) through guide passage (130) guided and second a magnet sleeve (112) adapted to have a sleeve (15) which is connected to the closure body (14) in terms of opening it when the sleeve (15) is moved in a longitudinal direction and automatically closing it when the sleeve moves ( 15) in the opposite direction, and said sleeve (15) being provided with an inner conical section (155) which is tapered in the direction from the inlet (110) to the guide (13), thus giving the diameter of that conical section (155) at the narrower end (155) larger than the diameter of the irregular fuel outlet (55) and smaller than the diameter of the regular fuel outlet (55 ') and the diameter of the conical area (155) at the wider end (155') larger than the diameter of the regular outlet pipes (55 ') for fuel. Container according to claim 1, characterized in that the sleeve (15) consists of a material which allows it to cooperate with the permanent magnet (112). Container according to Claim 1, characterized in that the sleeve (15) is at least partially surrounded by a sleeve (157) of material that allows cooperation with the permanent magnet (112). Container according to one of Claims 1 to 3, characterized in that a clamp (156) is arranged inside the sleeve (15), in the area between the conical section (155) and the guide ring, for adjusting to a regular outlet tubes (55 ') of appropriate predefined outside diameter. Container according to one of Claims 1 to 4, characterized in that the sleeve (15) is provided with an adjoining seat (135) on the guide (13) facing the seat (135) and is held in position by the magnet (112). (113) on the guide ring (111), the locking body (14) resting on the associated sealing surface (133) on the guide (13). Container according to one of Claims 1 to 4, characterized in that the closure body (14) is designed as a detachable lid in such a way that the sleeve (15) is in contact with the regular outlet pipe (55 ') in the area of its inner conical section (155), thanks to contact with said tube (55 ') and slip of the guide nozzle (152) through the guide passage (130) of the guide (13) and, bypassing the detent shut-off body (14), is movable along the mouth (1) towards the container. Container according to Claim 1, characterized in that the mouthpiece (13) of the mouth (1) is mounted on the shut-off body (14) and a magnet (131) acting on the latter. Container according to claim 7, characterized in that the magnet (131) is a permanent magnet which acts on the locking body (14) with a force of attraction. Container according to claim 2, characterized in that the magnet (112) is a permanent magnet that acts on the sleeve (15) with a force of attraction. Container according to claim 3, characterized in that the magnet (112) is a permanent magnet acting on the sleeve (157) with a force of attraction. Container according to claim 1, characterized in that the closure body (14) is tapered and movable in the longitudinal direction of the mouth (1) by means of a sleeve (15).