FIEUD OF INVENTION:

This invention is an apparatus, which is using for installing the toroidal shaped LPG autogas tanks in to motor vehicles, which is using liquefied petroleum gases in their fuel system.

KNOWN ART:

Figure 1 and figure 2 in the annexed drawings show a method to installed tanks in the car as cross sectional view in vertical plane and top view plane. As shown in figure 1 and figure 2 toroidal shaped LPG tanks installing in the car boot (1) at spare wheel compartment (2) space in horizontal plane and filling with LPG in closed area (4) with the internal space (6) by internal wall(5) of the tank. This internal space (6) uses to install tanks (3) in to car. Top of this internal space (6) closes by a cover named as “Gas Tightening Cover” just after the installation completed. The internal space (6) isolating by cover. The internal space (6) bordering with another bottom plate (7) which also uses for fixing the tank (3) in car body too. A ventilation pipe (11) adds to bottom plate (7) for ventilating the internal space (6). Two bolts (8) or studs that can do the same job are used to connecting the tank. This bolt (8) goes to under the car through bottom plate (7) and fixes the tank (3) to car body with using washer (9) and nut (10). In addition, opens a hole in the bottom of spare wheel compartment (2) and a ventilation pipe (11) comes out through this hole to ventilating the internal space (6) to put away the danger against the possibility of leaking of LPG. This ventilation pipe hole uses for installing the copper pipes which are using fill to tank and using to servicing fuel to engine too. In order to connect the tank and to ventilate the compartment, first of all, three holes are drilled in the base of the vehicle spare tire compartment (2), two for the screws (8) to pass, and one for the ventilation pipe (11) to pass, and all three holes must be sealed in the current situation. OBJECTIVE OF THE INVENTION:

The aim of this invention is to reduce the number of materials used in connecting the LPG tank to the vehicle and the number of holes that need to be drilled, thus reducing the material and labour costs, eliminating the positioning problems during assembly, thus shortening the installation time, making the ventilation function healthier, in case of possible gas leakage or reducing the LPG pressure and to provide faultless ventilation in case of dangerous evacuation.

DESCRIPTION OF THE FIGURES: Figure 1: Current mounting method of toroidal type LPG tank as cross section in vertical plane

Figure 2: The current mounting method of the toroidal type LPG tank in the top view plane,

Figure 3: The inventive mounting method of the toroidal type LPG tank as cross section in vertical plane

Figure 4: The inventive mounting method of the toroidal type LPG tank in the top view plane,

Figure 5: Enlarged detail view of bottom plate and inner (female) screwed muff

Figure 6: Combined view of bottom plate and inner (female) screwed muff Figure 7: New ventilation and connecting pipe

Figure 8: Exploded view showing the assembly sequence of the invention,

Figure 9: Exploded view showing the order of assembly of the invention to the vehicle,

Figure 10: Detail exploded view showing the preparation of the invention for installation on the vehicle Figure 11: Detail view of the invention mounted on the vehicle EXPLANATIONS OF REFERENCES IN THE FIGURES:

1- Motor vehicle boot compartment

2- Spare wheel compartment inside the boot

3- Tank for LPG storage

4- LPG tank internal volume compartment

5- LPG tank inner wall

6- Internal space of LPG tank

7- Bottom flange

8- Fastening bolts

9- Washers

10- Nuts

11- Ventilation Pipe

12- Internal (female) screwed muff

12a- Internal threaded muff screw threads

13 - New ventilation and connecting pipe

13a- New ventilation pipe threads

13b- Ventilation pipe fastening holes

13c- Ventilation pipe stepped stage

14- Washer flange.

DESCRIPTION OF THE INVENTION:

The invention is used in the connection process of the toroidal shaped LPG tank (3), in the vehicle boot compartment (1), to the spare wheel compartment (2), as in the pictures shown in figure 3 and figure 4: Without changing the main characters in the tank structure, a hole is drilled on the base of the vehicle spare wheel compartment (2) as seen in figure 10, where the new ventilation pipe (13) can pass. As seen in Figure 5 and Figure 6, the inner (female) screwed muff (12) has been added on the tank bottom flange (7). As seen in Figure 3 and Figure 4, the LPG tank (3) is placed in the vehicle spare wheel compartment (2). As can be seen in Figure 8 and Figure 9, first the washer flange (14) is attached to the new ventilation pipe (13) seen in Figure 7 and placed on the stepped stage (13c) by processing under the vehicle. The ventilation pipe (13) is pushed upwards through the hole drilled in the base of the vehicle spare wheel compartment (2), and it is brought together with the inner screw muff (12). By rotating the ventilation pipe (13), it is ensured that the screw threads (13a) at the end are interlocked with the inner screw muff screw threads (12a). As the rotation of the ventilation pipe (13) continues, together with the flange washer (14) moves upwards. It is continued to rotate until the flange washer (14) touches the base of the vehicle spare wheel compartment (2). In order to ensure that the connection is strong enough, the ventilation pipe (13) is tightened by turning the ventilation pipe (13) shown in figure 7, by attaching a shaft of sufficient strength to the tightening holes (13b) located near its lower end. Different vehicle manufacturers produce the spare wheel compartment (2) in the boot in different sizes due to their designs. The screw threads (13a) on the ventilation pipe (13) and the inner screw muff (12) are produced in long lengths and are also used in the trunk spare wheel compartment (2), which has different sizes in different model vehicles. As a part of the tank production, when the bottom flange (7) and the inner (female) screwed muff (12) are combined, there is no need to provide additional sealing in the single hole drilled in the base of the spare tire housing (2), since the sealing conditions are met. Since the spare wheel compartment (2) in the boot (1) and the washer flange (14) come into contact with the large surface, the deformation on the vehicle caused by the tightening force required for the connection is prevented. In addition, this ventilation pipe (13) is also used as a route to the copper pipes laid for LPG supply and use. The connection seen in figure 3, figure 4 and figure 11 is thus completed.

APPLICATION OF THE INVENTION TO INDUSTRY:

The invention is the method used in the assembly of toroidal type LPG tanks used as fuel tanks of motor vehicles using LPG in alternative fuel systems, providing ease of assembly, reducing the number of parts used, accelerating the modification process on the vehicle, and ensuring that the connection is safe and leak-proof at the same time.