JPH0554047U - Swivel tank device for automobile fuel tank - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the number of parts in the swirling tank device for automobile fuel tanks. [Structure] On the bottom surface 2 of the fuel tank, the tank bracket 3
The main body 4 of the swirling tank 1 is fixed via. An engaging protrusion 4c is provided on the peripheral wall of the main body 4, and an elastic annular hook 5a is provided on the lid 5 that covers the upper opening end surface of the main body 4, and the lid 5 is attached to the main body 4 by elastically engaging both. A pump support base 6 having a support surface 6a recessed upward is provided inside the main body 4, and the lid 5 has an opening through which the upper portion of the fuel pump 7 placed on the pump support base 6 can escape. 12 is provided. The curved convex portion 13 and the pressing plate 1 are provided on the portion of the lid 5 adjacent to the opening 12.
4, the lid 5 is attached to the main body 4, and the curved convex portion 1
The upper portion of the fuel pump 7 is pressed by the pressing plate 3 and the pressing plate 14, and the fuel pump 7 is fixed in the swirl tank 1 so as to be sandwiched between the lid body 5 and the main body 4. [Effect] The number of parts can be reduced without requiring a pump fixing bracket.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swirling tank device for a fuel tank for an automobile, and more particularly to a swirling tank device for a fuel tank for an automobile having a fuel pump received inside a concave swirling tank body.

[0002]

[Prior Art]

 When the vehicle turns when the remaining amount of liquid fuel in the fuel tank is low, the liquid fuel is biased to one side of the fuel tank due to the influence of inertial force, but at this time the suction port of the fuel pump should not be exposed above the liquid level. In order to achieve this, a swirling tank is generally provided in the fuel tank body to capture and store a part of the fuel to secure a required liquid level (Japanese Patent Laid-Open No. 2-78422, etc.). reference).

Although the above-described fuel pump is supported by the swirl tank, the conventional support structure has a pump bracket fixed to the bottom wall of the fuel tank body as disclosed in the above-mentioned publication. A swirl tank is attached, and a pump bracket integrally assembled with the fuel pump is engaged with a recessed engaging portion on the wall of the swirl tank. In the swirling tank device configured as described above, the fuel pump is attached to the swirling tank via the pump bracket as described above, and thus there is a problem that the number of parts constituting the swirling tank device is large.

[0004]

[Problems to be solved by the device]

 In view of the above problems of the prior art, a main object of the present invention is to provide an improved swirl tank device for a fuel tank for an automobile, which is improved to reduce the number of parts.

[0005]

[Means for Solving the Problems]

 According to the present invention, such a purpose is to provide a concave swirling tank body mounted in a fuel tank, a lid body mounted so as to cover an opening of the swirling tank body, and a swirling tank body of the swirling tank body. And a fuel pump received inside, wherein the fuel pump is sandwiched and fixed between a part of the swirl tank main body and the lid attached to the swirl tank main body. This is achieved by providing a swirling tank device for a fuel tank for an automobile.

[0006]

[Action]

 With this configuration, the fuel pump can be fixed in the swirl tank without using the bracket.

[0007]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a side sectional view of a swirling tank 1 constructed according to the present invention. The swirl tank 1 is fixedly installed on the bottom surface 2 of a fuel tank for an automobile (not shown), and even if the fuel in the fuel tank moves to one side due to inertial force during turning, the suction by the fuel pump is performed. It is to be able to hold.

As shown in FIG. 1, a metal tank bracket 3 is fixed to the bottom surface 2 of the fuel tank by, for example, welding, and the tank bracket 3 is formed to have a concave shape of the swirling tank 1, for example. A POM body 4 is fixed. As also shown in FIG. 2 showing an exploded perspective view, an outward flange portion 4a extending along the lower surface of the main body 4 is provided on one lower portion of both longitudinal end surfaces of the main body 4. The other end face side is provided with a resilient engagement piece 4b extending from the lower face side so as to rise upward. In the main body 4, the outward flange portion 4a is set in the engagement recess 3a provided at the corresponding position of the tank bracket 3, and the elastic engagement piece 4b is provided at the corresponding position of the tank bracket 3. It is fixed by elastically engaging the fixed claw 3b.

A lid body 5 made of, for example, POM, which is molded so as to cover the opening end surface opened upward, is attached to the main body 4. Engagement protrusions 4c are provided at appropriate places on the upper portion of the peripheral wall of the main body 4, and elastic ring hooks 5a are provided at corresponding portions of the lid body 5, respectively. The lid 5 is attached to the main body 4 by covering the main body 4 and elastically engaging the respective elastic annular hooks 5a with the respective engaging protrusions 4c. It should be noted that the elastic annular hook 5a and the engaging convex portion 4c are partially shown in FIG. 2, and they are also provided in appropriate places on the hidden side in the drawing in order to secure the lid body 5 securely. It can be attached to the body 4.

As shown in FIG. 2, the pump support base 6 as a part of the main body 4 is integrally formed inside the main body 4 in the swirling tank 1 configured as described above. It is provided by molding. The pump support base 6 has an arcuate support surface 6a that is inclined downward from the wall portion on the side of the elastic engagement piece 4b toward the center and is recessed upward, and a lower end portion in the inclination direction. It has a stopper 6b that stands upright. The curvature of the support surface 6a is set so as to match the outer peripheral surface of the fuel pump 7 having a cylindrical shape. As shown in FIG. 1, the support surface 6a and the stopper 6b allow the fuel pump 7 to incline its axis. It is designed to be held in the opened state. A filter attached to the tip of the suction port of the fuel pump 7 faces the bottom surface of the main body 4 while being mounted on the pump support base 6.

A fuel inlet 8 that communicates the outside and the inside is provided in a part of the lower part of the wall of the main body 4 on the side of the elastic engagement piece 4 b, and inside the main body 4, the fuel flow port 8 is provided. An L-shaped inner wall 10 extending along the peripheral wall is provided to form an L-shaped fuel passage 9 between the inlet 8 and the vicinity of the suction port of the fuel pump 7. .. Further, the lid 5 is also provided with a rib-shaped inner wall (11 in FIG. 1) which is also L-shaped so that it can be brought into contact with the upper end surface of the inner wall 10 when attached to the main body 4.

Therefore, the vicinity of the suction port of the fuel pump 7 and the fuel inlet 8 communicate with each other via the L-shaped fuel passage 9, and, for example, due to the inertia force during turning, the turning tank 1 Even if the fuel inside is biased toward the fuel passage 9 side, it is possible to prevent the fuel around the suction port of the fuel pump 7 from being received by the inner wall 10 and flowing out from the fuel inlet 8. Therefore, even if the remaining amount of fuel in the fuel tank becomes low, it will not be impossible to absorb the fuel when turning.

By the way, when the fuel pump 7 is mounted on the pump support base 6, a part of the upper portion of the fuel pump 7 projects above the upper surface of the lid body 5 attached to the main body 4. The lid 5 is provided with an opening 12 that is opened so that the upper portion of the fuel pump 7 in the mounted state can escape when the lid 5 is attached to the main body 4. In addition, an intermediate portion of the lid 5 adjacent to the opening 12 is curved so as to project upward so as to hold down the upward projecting portion of the outer peripheral surface of the axially intermediate portion of the fuel pump 7. The curved convex portion 13 formed by the above is provided. Further, on the side of the lid body 5 facing the curved convex portion 13 with the opening portion 12 sandwiched therebetween, the lid body 5 is directed upward so as to come into contact with the upward protruding portion of the axial end surface of the fuel pump 7 in the above-mentioned installed state. A pressing plate 14 having a cut and raised shape is provided.

The swirl tank 1 is configured as described above, and the main body 4 is attached to the tank bracket 3 fixed to the bottom surface 2 of the fuel tank as described above. As shown in FIG. After mounting the pump on the pump support base 6, the lid 5 is put on the main body 4 so that the elastic annular hooks 5a of the lid 5 are engaged with the respective engaging protrusions 4c of the main body 4, so that the swirling tank 1 is Can be assembled. In this state, the curved convex portion 13 of the lid 5 and the pressing plate 14 press the upper portion of the fuel pump 7, so that the fuel pump 7 is fixed. It should be noted that vibration-proof rubbers (not shown) are sandwiched between the main body 4 and the lid 5 and the fuel pump 7 at a plurality of locations.

As described above, since the main body 4 and the lid body 5 are coupled by the elastic engagement of the engaging convex portion 4c and the elastic annular hook 5a, the lid body 5 is attached to and detached from the main body 4. For example, when replacing the fuel pump 7, the lid 5 can be removed to easily perform the work.

The connection between the tank bracket 3 and the main body 4 is not limited to the elastic engagement at one place in this embodiment, and for example, an elastic engagement piece similar to the elastic engagement piece 4b is used. The main body 4 may be provided on both sides along the longitudinal direction, and the fixing claws 3b may also be provided at corresponding positions on the tank bracket 3 so as to be elastically engaged and fixed at two lateral positions. By connecting the main body 4 to the tank bracket 3 by elastically engaging at one or two or more places in this way, the main body 4 can be easily removed from the tank bracket 3 when replacing the fuel pump. It can be performed. Further, even in the structure in which the main body of the swirl tank is fixed to the tank bracket, the lid body can be removed as described above by making the main body and the lid body detachable as shown in the embodiment. The fuel pump can be replaced more easily.

[0018]

[Effect of the device]

 As described above, according to the present invention, since the fuel pump is clamped and fixed between the main body and the lid of the swirl tank, the fuel pump can be fixed in the swirl tank without using a bracket. The number of parts of the tank device can be reduced, and the lid can be attached / detached so that the fuel pump can be easily replaced.

[Brief description of drawings]

FIG. 1 is a side sectional view of a swirling tank apparatus for a fuel tank for an automobile to which the present invention is applied.

FIG. 2 is an exploded perspective view of a swirling tank to which the present invention is applied.

[Explanation of symbols]

 1 Swirling Tank 2 Bottom 3 Tank Bracket 3a Engagement Recess 3b Fixed Claw 4 Body 4a Outward Flange 4b Elastic Engagement Piece 4c Engagement Convex 5 Lid 5a Elastic Ring Hook 6 Pump Support 6a Support 6b Stopper 7 Fuel Pump 8 Fuel inlet 9 Fuel passage 10/11 Inner wall 12 Opening 13 Curved convex 14 Presser plate

Claims (1)

[Scope of utility model registration request] 1. A swirling tank main body having a concave shape mounted in a fuel tank, a lid mounted so as to cover an opening of the swirling tank main body, and a fuel pump received inside the swirling tank main body. A swirling tank of a fuel tank for an automobile, characterized in that the fuel pump is sandwiched and fixed between a part of the swirling tank body and the lid attached to the swirling tank body. apparatus.