Double-fuel pump assembly

Abstract

The utility model provides a double-fuel pump assembly, which comprises a bottom shell, an inner support, an upper cover and a filter, and is characterized in that the inner support is fixed in the bottom shell, the filter is fixed on the inner support, two fuel pumps, namely a first fuel pump and a second fuel pump, are further loaded on the inner support, and the first fuel pump and the second fuel pump are fixed on the upper cover. The two fuel pumps are communicated with the filter, an oil outlet corrugated pipe is arranged between the filter and the upper cover, and the upper cover is fixedly connected with the inner support through a supporting rod. The first oil pump is connected with a first corrugated pipe independently used for injection, and the tail end of the first corrugated pipe is connected with an injection nozzle. Fuel oil on the periphery of the fuel oil pump in the bottom shell is stirred through injection, and therefore the effect of rapidly cooling the fuel oil pump is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a double fuel pump assembly. BACKGROUND

[0002] The fuel pump is one of the basic components of the automobile electronic injection fuel system, generally located in the vehicle fuel tank, the fuel pump functions to suck fuel from the fuel tank, pressurize and deliver to the fuel supply pipe, and cooperate with the fuel pressure regulator to establish a certain fuel pressure.

[0003] The fuel pump is generally installed in the automobile fuel tank through the fuel pump support (i.e. the fuel pump assembly), the fuel pump support includes an upper cover, a bottom shell and an inner support, etc., the fuel pump is installed on the inner support and placed in the bottom shell, and then connected with the fuel tank through the upper cover, since a large amount of heat is generated during the working process of the fuel pump, the current fuel pump is covered in the inner support, and the heat is difficult to dissipate, which may cause the performance of the fuel pump to be reduced or even damaged after a long time. SUMMARY

[0004] The utility model aims at the above problems existing in the prior art, and provides a double fuel pump assembly, which can stir the fuel around the fuel pump in the bottom shell through injection, so that the effect of the fuel pump is quickly cooled.

[0005] The utility model discloses a double fuel pump assembly, it includes bottom shell, inner support, upper cover and filter, its characterized in that, the inner support is fixed in the bottom shell, the filter is fixed on the inner support, the inner support still loads two fuel pumps and is first oil pump and second oil pump respectively, two fuel pumps are communicated with the filter, the filter is equipped with the oil outlet corrugated pipe between the upper cover, the upper cover and the inner support are connected and fixed through the support rod, the first oil pump is connected with the first corrugated pipe that is used for injection alone, and the first corrugated pipe tail end is connected with the injection nozzle.

[0006] Further, the inner support has a fixing buckle for fixing the injection nozzle, the injection nozzle is fixedly connected with the fixing buckle, and the oil outlet end is located at one side of the middle part of the fuel pump.

[0007] Further, the second oil pump is connected with a siphon pipe, and the siphon pipe has an injection pump connected with the bottom shell.

[0008] Further, the bottom shell has a siphon pipe and a siphon port, the siphon pipe has an oil inlet end and an oil outlet end, the injection pump is connected with the siphon pipe, and the siphon pipe is aligned with the siphon port of the bottom shell, and the bottom shell at the inner end of the siphon port is provided with a check valve.

[0009] Further, the inner support has a mounting port for mounting the first oil pump, the second oil pump and the filter.

[0010] Further, the first oil pump and the second oil pump are both communicated with the filter through the oil delivery bellows, and the first oil pump and the second oil pump are both provided with a filter screen below.

[0011] Further, a wire plug connection is arranged between the first oil pump, the second oil pump and the upper cover.

[0012] Further, the inner support is provided with a clamping head, and the bottom shell is provided with a connecting buckle matched with the clamping head.

[0013] Further, the upper cover is provided with an oil outlet nozzle, and the oil outlet bellows is connected with the oil outlet nozzle.

[0014] Further, the bottom shell is connected with an oil level sensor.

[0015] Compared with the prior art, the application has the advantages that: the fuel oil around the fuel oil pump in the bottom shell is stirred by the injection, so that the effect of the fast-cooled fuel oil pump is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic view of the assembly;

[0017] Figure 2 is a schematic view of the assembly without the bottom shell;

[0018] Figure 3 is a schematic view of the second oil pump;

[0019] Figure 4 is a schematic view of the first oil pump;

[0020] Figure 5 is a schematic view of the double oil pump;

[0021] Figure 6 is a schematic view of the inside of the bottom shell;

[0022] Figure 7 is a schematic view of the assembly from another angle without the bottom shell;

[0023] Figure 8 is a schematic view of the assembly without the upper cover;

[0024] Figure 9 is a schematic view of the siphon pipe of the bottom shell;

[0025] Figure 10 is a schematic view of the inside of the bottom shell from another angle;

[0026] In the figure, 1, upper cover; 11, oil outlet nozzle; 12, support rod; 2, bottom shell; 21, oil level sensor; 22, oil inlet end; 23, connecting buckle; 24, check valve; 25, oil outlet end; 26, siphon inlet; 27, siphon pipeline; 3, inner support; 31, clamping head; 32, mounting port; 401, wire plug; 41, first oil pump; 411, first bellows; 412, injection nozzle; 42, second oil pump; 421, filter screen; 422, siphon pipe; 423, injection pump; 5, filter; 51, oil outlet bellows; 52, oil delivery bellows. DETAILED DESCRIPTION

[0027] The following is a specific embodiment of the utility model and in combination with the drawings, the technical scheme of the utility model is further described.

[0028] As Figures 1-10 shown, a double fuel pump assembly, it includes bottom shell 2, inner support 3, upper cover 1 and filter 5, its characterized in that, the inner support 3 is fixed in bottom shell 2, the filter 5 is fixed on inner support 3, the inner support 3 still loads two fuel pumps and is first oil pump 41 and second oil pump 42 respectively, the two fuel pumps are communicated with filter 5, the filter 5 is equipped with oil outlet bellows 51 between upper cover 1, the upper cover 1 and inner support 3 are connected and fixed through support rod 12, the first oil pump 41 is connected with the first bellows 411 that is used for injection alone, and the first bellows 411 end is connected with injection nozzle 412. Further, the inner support 3 has fixed buckle of injection nozzle 412, the injection nozzle 412 is clamped and fixed with fixed buckle and oil outlet end 25 is located in the middle one side of fuel pump.

[0029] Further, the second oil pump 42 is connected with siphon pipe 422 and has injection pump 423 (English name: jut-pump) that is connected with bottom shell 2 on siphon pipe 422. Injection pump works, and the pipeline forms Venturi effect, realizes siphon.

[0030] Further, the bottom shell 2 has siphon pipeline 27 and siphon inlet 26, the siphon pipeline 27 has oil inlet end 22 and oil outlet end 25, the injection pump 423 is connected with siphon pipeline 27 and siphon pipe 422 is aligned with siphon inlet 26 of bottom shell 2, the bottom shell 2 is equipped with check valve 24 in the inner end of siphon inlet 26. Siphon pipeline 27 is used for the connection of siphon pipe 422 and injection pump 423, injection pump 423 can make siphon effect at siphon inlet 26 when injection, and oil inlet end 22 is from auxiliary oil tank Siphon oil, check valve 24 prevents fuel backflow.

[0031] Further, the inner support 3 has mounting port 32 for first oil pump 41, second oil pump 42 and filter 5 installation.

[0032] Further, the first oil pump 41 and the second oil pump 42 are communicated with the filter 5 through the oil delivery bellows 52, and the first oil pump 41 and the second oil pump 42 are provided with the filter screen 421 below. The filter screen 421 is used for filtering fuel oil.

[0033] Further, the first oil pump 41, the second oil pump 42 and the upper cover 1 are provided with the wire plug 401 connection.

[0034] Further, the inner support 3 is provided with the clamping head 31, and the bottom shell 2 is provided with the connecting buckle 23 buckled with the clamping head 31. The inner support 3 and the bottom shell 2 are movably connected, and are convenient to disassemble.

[0035] Further, the upper cover 1 is provided with the oil outlet nozzle 11, and the oil outlet bellows 51 is connected with the oil outlet nozzle 11.

[0036] Further, the bottom shell 2 is connected with the oil level sensor 21. The oil level sensor 21 is used for detecting the fuel oil level in the oil tank.

[0037] In the above structure, the application has the first oil pump 41 and the second oil pump 42, the first oil pump 41 is provided with the first bellows 411 to send out fuel oil through the injection nozzle 412, at this time, the fuel oil in the bottom shell 2 is provided with power, the fuel oil flow rate change generates stirring to exchange heat, which stirs the fuel oil around the fuel oil pump in the bottom shell 2 through injection, so as to achieve the effect of the fuel oil pump which is quickly cooled, the siphon pipe 422 of the second oil pump 42 is connected with the bottom shell 2 to spray the siphon port 26 to form the siphon effect, so that the oil storage bucket keeps full of oil, and the fuel oil on the side of the auxiliary oil tank is siphoned into the bottom shell 2 through the oil inlet pipe, the first oil pump 41 and the second oil pump 42 are connected with the filter 5, and then connected with the oil outlet nozzle 11 of the upper cover 1 through the oil outlet bellows 51, so as to upwardly deliver oil.

[0038] The technical scheme of the above utility model, aiming at the too single technical problem of the prior art solution, provides a solution significantly different from the prior art, and the parts not involved in the technical scheme of the application are the same as or can be realized by the prior art, and will not be described herein.

[0039] The technical scheme in the above embodiment has clearly and completely described the content of the utility model. Obviously, the described embodiment is only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

Claims

1. A dual fuel pump assembly comprising a base, an inner support, an upper cover, and a filter, wherein, The inner support is fixed in the bottom shell, the filter is fixed on the inner support, two fuel pumps, i.e. a first fuel pump and a second fuel pump, are loaded on the inner support, the two fuel pumps are communicated with the filter, the filter is provided with an oil outlet bellows between the filter and the upper cover, and the upper cover and the inner support are connected and fixed through the support rod.

2. A dual fuel pump assembly as claimed in claim 1, wherein: The inner support is provided with a fixing buckle for fixing the injection nozzle, the injection nozzle is clamped and fixed with the fixing buckle, and the oil outlet end of the injection nozzle is located at one side of the middle part of the fuel pump.

3. A dual fuel pump assembly as claimed in claim 1, wherein: The second fuel pump is connected with a siphon pipe, and the siphon pipe is provided with an injection pump connected with the bottom shell.

4. A dual fuel pump assembly as claimed in claim 3, wherein: The bottom shell is provided with a siphon pipe and a siphon port, the siphon pipe is provided with an oil inlet end and an oil outlet end, the injection pump is connected with the siphon pipe, the siphon pipe is aligned with the siphon port of the bottom shell, and a check valve is arranged on the bottom shell at the inner end of the siphon port.

5. A dual fuel pump assembly as defined in claim 1, wherein, The inner support is provided with a mounting port for mounting the first fuel pump, the second fuel pump and the filter.

6. A dual fuel pump assembly as claimed in claim 1, wherein, The first fuel pump and the second fuel pump are both communicated with the filter through the oil conveying bellows, and the first fuel pump and the second fuel pump are both provided with a filter screen below.

7. A dual fuel pump assembly as claimed in claim 6, wherein The first fuel pump, the second fuel pump and the upper cover are provided with a wire plug connection.

8. A dual fuel pump assembly as claimed in claim 1, wherein, The inner support is provided with a clamping head, and the bottom shell is provided with a connecting buckle clamped with the clamping head.

9. A dual fuel pump assembly as claimed in claim 1, wherein, The upper cover is provided with an oil outlet nozzle, and the oil outlet bellows is connected with the oil outlet nozzle.

10. A dual fuel pump assembly as claimed in claim 1, wherein, The bottom shell is connected with an oil level sensor.

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