Auxiliary device for testing automobile fuel pump

Abstract

The utility model belongs to the technical field of automobile fuel pump testing, and discloses an automobile fuel pump testing auxiliary device which comprises a water tank, an oil tank, a sample tool, a heat exchange fin and a cooling assembly, the water tank is provided with a containing cavity used for containing heat exchange liquid, and the oil tank is arranged in the containing cavity. The oil tank is provided with a sealing cavity used for containing fuel oil, the sample tool is installed at an opening of the oil tank and used for placing the fuel oil pump in the sealing cavity, the heat exchange fins are arranged on the outer side wall of the oil tank, the cooling assembly communicates with the water tank, and heat generated in the circulation process of the fuel oil pump is conducted to the heat exchange fins through the metal surface of the oil tank. The heat exchange fins exchange heat with the heat exchange liquid in the water tank, and meanwhile, the heat exchange liquid is cooled under the action of the cooling assembly, so that the temperature of the heat exchange liquid in the water tank is stabilized, and the accuracy of fuel oil temperature measurement of the fuel oil pump and the reliability of experimental data are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile fuel pump testing, in particular to an automobile fuel pump testing auxiliary device. Background Art

[0002] The fuel pump is one of the basic components of the fuel injection system of an electronic fuel injection vehicle. It is located inside the vehicle's fuel tank. The function of the fuel pump is to suck the fuel from the fuel tank, pressurize it and deliver it to the fuel supply pipe, and work with the fuel pressure regulator to establish a certain fuel pressure.

[0003] At present, after the fuel pump is processed, it needs to be tested, mainly focusing on the flammability of the test medium of the fuel pump and the convenience of carrying. Since the test medium is flammable and has a low ignition point, it is necessary to consider that the medium temperature is controlled within a low range and is in a relatively closed space. At the same time, according to the actual test needs, the existing test device is large and inconvenient to carry.

[0004] Therefore, there is an urgent need for an automobile fuel pump test auxiliary device to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an automobile fuel pump test auxiliary device, which has small size, is convenient to carry and has good sealing performance, and can ensure the accuracy of fuel temperature measurement of the fuel pump and the reliability of experimental data.

[0006] In order to solve the above problems existing in the prior art, the utility model adopts the following technical solutions:

[0007] Automobile fuel pump test auxiliary device, including:

[0008] A water tank, wherein the water tank has a receiving cavity, and the receiving cavity is used to receive a heat exchange liquid;

[0009] A fuel tank, the fuel tank is arranged in the accommodating cavity, the fuel tank has a sealed cavity, and the sealed cavity is used to accommodate fuel;

[0010] A sample tool, the sample tool is installed at the opening of the fuel tank, and the sample tool is used to place the fuel pump in the sealing cavity;

[0011] Heat exchange fins, the heat exchange fins are arranged on the outer side wall of the oil tank, and the heat exchange fins are used to exchange heat between the fuel in the oil tank and the heat exchange liquid in the water tank;

[0012] A cooling component is connected to the water tank and is used to cool the heat exchange liquid in the water tank.

[0013] Preferably, the cooling assembly includes a water inlet pipe, a water outlet pipe and a fan, the input end of the water inlet pipe is connected to the water tank, the output end of the water inlet pipe is connected to the water inlet end of the fan, the water outlet end of the fan is connected to the output end of the water outlet pipe, the input end of the water outlet pipe is connected to the water tank, and the fan is used to cool the heat exchange liquid.

[0014] Preferably, the cooling assembly further includes a circulation pump, and the circulation pump is connected between the water inlet pipe and the fan.

[0015] Preferably, the automobile fuel pump test auxiliary device further comprises a sealing ring, and the sealing ring is arranged between the sample tooling and the opening of the fuel tank.

[0016] Preferably, the automobile fuel pump test auxiliary device further comprises a connecting piece, the sample tooling is provided with a fixing hole, the fuel pump is provided with a connecting hole, and the connecting piece is passed through the connecting hole of the fuel pump and fixedly connected to the fixing hole.

[0017] Preferably, there are a plurality of heat exchange fins, and the plurality of heat exchange fins are spaced apart and distributed around the outer circumference of the oil tank.

[0018] Preferably, the automobile fuel pump test auxiliary device further comprises a pressure gauge, which is inserted into the accommodating cavity and is used to detect the oil pressure inside the fuel tank.

[0019] Preferably, the automobile fuel pump test auxiliary device further comprises a pressure balancing valve, which is inserted into the accommodating cavity and used for balancing the internal and external pressures of the fuel tank.

[0020] Preferably, the automobile fuel pump test auxiliary device further comprises a thermometer, which is inserted into the accommodating cavity and is used to detect the temperature of the fuel in the fuel tank.

[0021] Preferably, the automobile fuel pump test auxiliary device further comprises a fixing seat, which is located in the accommodating cavity, one end of the fixing seat is fixedly connected to the bottom of the water tank, and the other end of the fixing seat is fixedly connected to the oil tank.

[0022] The beneficial effects of the utility model are:

[0023] The utility model provides an auxiliary device for testing an automobile fuel pump. The water tank has a containing cavity, which is used to contain a heat exchange liquid. The oil tank is arranged in the containing cavity. The oil tank has a sealed cavity, which is used to contain fuel. The sample tool is installed at the opening of the oil tank. The sample tool is used to place the fuel pump in the sealed cavity. The heat exchange fin is arranged on the outer wall of the oil tank. The heat exchange fin is used to exchange heat between the fuel in the oil tank and the heat exchange liquid in the water tank. The cooling component is connected to the water tank. The cooling component is used to cool the heat exchange liquid in the water tank. The fuel pump is installed in the sealed cavity of the oil tank through the sample tool, and the sealing performance is good. Then the oil tank is completely placed in the containing cavity of the water tank, so that the oil tank is immersed in the heat exchange liquid in the containing cavity. The heat generated by the fuel pump during the circulation process is conducted to the heat exchange fin through the metal surface of the oil tank. The heat exchange fin exchanges heat with the heat exchange liquid in the water tank. At the same time, the heat exchange liquid is cooled down under the action of the cooling component to stabilize the temperature of the heat exchange liquid in the water tank, so as to ensure the accuracy of the fuel temperature measurement of the fuel pump and the reliability of the experimental data. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of the automobile fuel pump test auxiliary device provided by the embodiment of the utility model;

[0025] Figure 2 A top view of a fuel pump and a sample tooling provided in an embodiment of the utility model.

[0026] Reference numerals:

[0027] 100. fuel pump; 101. connection hole;

[0028] 1. Water tank; 11. Accommodating chamber;

[0029] 2. Oil tank; 21. Sealed chamber;

[0030] 3. Sample tooling;

[0031] 4. Heat exchange fins;

[0032] 5. Cooling assembly; 51. Water inlet pipe; 52. Water outlet pipe; 53. Fan; 54. Circulation pump;

[0033] 6. Pressure gauge;

[0034] 7. Pressure balance valve;

[0035] 8. Thermometer;

[0036] 9. Fixed seat. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0038] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0040] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0041] like Figure 1-Figure 2As shown, in this embodiment, the automobile fuel pump test auxiliary device includes a water tank 1, an oil tank 2, a sample fixture 3, a heat exchange fin 4 and a cooling assembly 5. Among them, the water tank 1 has a receiving chamber 11, and the receiving chamber 11 is used to receive a heat exchange liquid. The oil tank 2 is arranged in the receiving chamber 11. The oil tank 2 has a sealed chamber 21, and the sealed chamber 21 is used to receive fuel. The sample fixture 3 is installed at the opening of the oil tank 2. The sample fixture 3 is used to place the fuel pump 100 in the sealed chamber 21. The heat exchange fin 4 is arranged on the outer wall of the oil tank 2. The heat exchange fin 4 is used to exchange heat between the fuel in the oil tank 2 and the heat exchange liquid in the water tank 1. The cooling assembly 5 is connected to the water tank 1, and the cooling assembly 5 is used to cool the heat exchange liquid in the water tank 1. Specifically, the fuel pump 100 is installed in the sealed chamber 21 of the oil tank 2 through the sample fixture 3, and the sealing performance is good. Then the oil tank 2 is completely placed in the receiving chamber 11 of the water tank 1, so that the oil tank 2 is immersed in the heat exchange liquid in the receiving chamber 11. The outer wall of the fuel tank 2 is provided with heat exchange fins 4. The heat generated in the fuel tank 2 during the circulation process of the fuel pump 100 is conducted to the heat exchange fins 4 through the metal surface of the fuel tank 2. The heat exchange fins 4 exchange heat with the heat exchange liquid in the water tank 1. At the same time, the heat exchange liquid is cooled down under the action of the cooling component 5 to stabilize the temperature of the heat exchange liquid in the water tank 1, thereby ensuring the accuracy of the fuel temperature measurement of the fuel pump 100 and the reliability of the experimental data. The automobile fuel pump test auxiliary device is small in size and easy to carry.

[0042] Further, continue to refer to Figure 1-Figure 2 The cooling assembly 5 includes an inlet pipe 51, an outlet pipe 52 and a fan 53. The input end of the inlet pipe 51 is connected to the water tank 1, the output end of the inlet pipe 51 is connected to the water inlet end of the fan 53, the outlet end of the fan 53 is connected to the output end of the outlet pipe 52, the input end of the outlet pipe 52 is connected to the water tank 1, and the fan 53 is used to cool the heat exchange liquid. Specifically, the fan 53 is a fan, and the cooling assembly 5 is arranged on the outside of the water tank 1. The heat exchange liquid in the water tank 1 enters the fan 53 through the inlet pipe 51. The fan 53 starts and takes away the high temperature of the heat exchange liquid, that is, cools the heat exchange liquid, and then re-enters the water tank 1 through the outlet pipe 52 to stabilize the temperature of the heat exchange liquid in the water tank 1.

[0043] Further, continue to refer to Figure 1-Figure 2 The cooling assembly 5 further includes a circulation pump 54, which is connected between the water inlet pipe 51 and the fan 53. Specifically, the heat exchange liquid in the water tank 1 is pumped into the fan 53 under the action of the circulation pump 54, so that the heat exchange liquid quickly enters the fan 53 for cooling.

[0044] Further, continue to refer to Figure 1-Figure 2The automobile fuel pump test auxiliary device also includes a sealing ring, which is arranged between the sample fixture 3 and the opening of the fuel tank 2. Specifically, a sealing groove is arranged around the opening of the fuel tank 2, and the sealing ring is installed in the sealing groove. The sealing cover of the sample fixture 3 is arranged at the opening of the fuel tank 2, and the fuel tank 2 forms a relatively sealed sealing cavity 21 under the sealing action of the sealing ring, and the sealing performance is good.

[0045] Further, continue to refer to Figure 1-Figure 2 The automobile fuel pump test auxiliary device also includes a connecting piece. The sample tool 3 is provided with a fixing hole, and the fuel pump 100 is provided with a connecting hole 101. The connecting piece is passed through the connecting hole 101 of the fuel pump 100 and is fixedly connected to the fixing hole. Specifically, the connecting piece is a bolt, and the fuel pump 100 is fixedly installed on the sample tool 3 through the connecting piece. The sample tool 3 places the fuel pump 100 in the fuel tank 2 and is firmly installed.

[0046] Further, continue to refer to Figure 1-Figure 2 There are multiple heat exchange fins 4, and the multiple heat exchange fins 4 are spaced apart around the outer circumference of the fuel tank 2, so that the heat generated by the fuel pump 100 during the circulation process is conducted to the heat exchange fins 4 through the metal surface of the fuel tank 2, and the multiple heat exchange fins 4 fully exchange heat with the heat exchange liquid in the water tank 1, and the heat exchange efficiency is high.

[0047] Further, continue to refer to Figure 1-Figure 2 The automobile fuel pump test auxiliary device also includes a pressure gauge 6, a pressure balance gauge and a thermometer 8. The pressure gauge 6 is inserted in the accommodating cavity 11 and is used to detect the oil pressure inside the fuel tank 2. The pressure balance valve 7 is inserted in the accommodating cavity 11 and is used to balance the internal and external pressures of the fuel tank 2. The thermometer 8 is inserted in the accommodating cavity 11 and is used to detect and display the temperature of the fuel in the fuel tank 2.

[0048] Further, continue to refer to Figure 1-Figure 2 The automobile fuel pump test auxiliary device also includes a fixing seat 9, which is located in the accommodating cavity 11, one end of the fixing seat 9 is fixedly connected to the bottom of the water tank 1, and the other end of the fixing seat 9 is fixedly connected to the fuel tank 2. Specifically, the fuel tank 2 is installed inside the water tank 1 through the fixing seat 9, so that the outer peripheral wall and the bottom wall of the fuel tank 2 are spaced from the inner wall of the water tank 1, thereby ensuring that the fuel in the fuel tank 2 can be fully heat-exchanged by the heat exchange liquid, without affecting the heat exchange effect of the fuel, thereby ensuring the accuracy of the fuel test data.

[0049] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. Automobile fuel pump test auxiliary device, characterized in that: include: A water tank (1), the water tank (1) having a containing chamber (11), the containing chamber (11) being used to contain a heat exchange liquid; A fuel tank (2), the fuel tank (2) being arranged in the accommodating chamber (11), the fuel tank (2) having a sealed chamber (21), the sealed chamber (21) being used to accommodate fuel; A sample tool (3), the sample tool (3) being installed at the opening of the fuel tank (2), and the sample tool (3) being used to place the fuel pump (100) in the sealed cavity (21); Heat exchange fins (4), the heat exchange fins (4) being arranged on the outer side wall of the oil tank (2), the heat exchange fins (4) being used to exchange heat between the fuel in the oil tank (2) and the heat exchange liquid in the water tank (1); A cooling component (5), the cooling component (5) is connected to the water tank (1), and the cooling component (5) is used to cool the heat exchange liquid in the water tank (1).

2. The automobile fuel pump test auxiliary device according to claim 1, characterized in that: The cooling assembly (5) comprises a water inlet pipe (51), a water outlet pipe (52) and a fan (53); the input end of the water inlet pipe (51) is connected to the water tank (1); the output end of the water inlet pipe (51) is connected to the water inlet end of the fan (53); the water outlet end of the fan (53) is connected to the output end of the water outlet pipe (52); the input end of the water outlet pipe (52) is connected to the water tank (1); and the fan (53) is used to cool the heat exchange liquid.

3. The automobile fuel pump test auxiliary device according to claim 2, characterized in that: The cooling assembly (5) further comprises a circulation pump (54), wherein the circulation pump (54) is connected between the water inlet pipe (51) and the fan (53).

4. The automobile fuel pump test auxiliary device according to claim 1, characterized in that: The automobile fuel pump test auxiliary device also includes a sealing ring, which is arranged between the sample tool (3) and the opening of the fuel tank (2).

5. The automobile fuel pump test auxiliary device according to claim 1, characterized in that: The automobile fuel pump test auxiliary device also includes a connecting piece, the sample tooling (3) is provided with a fixing hole, the fuel pump (100) is provided with a connecting hole (101), and the connecting piece is passed through the connecting hole (101) of the fuel pump (100) and is fixedly connected to the fixing hole.

6. The automobile fuel pump test auxiliary device according to claim 1, characterized in that: There are a plurality of heat exchange fins (4), and the plurality of heat exchange fins (4) are distributed at intervals around the outer circumference of the oil tank (2).

7. The automobile fuel pump test auxiliary device according to claim 1, characterized in that: The automobile fuel pump test auxiliary device also includes a pressure gauge (6), which is inserted into the accommodating cavity (11) and is used to detect the oil pressure inside the fuel tank (2).

8. The automobile fuel pump test auxiliary device according to claim 1, characterized in that: The automobile fuel pump test auxiliary device further comprises a pressure balancing valve (7), wherein the pressure balancing valve (7) is inserted into the accommodating cavity (11) and is used to balance the internal and external pressures of the fuel tank (2).

9. The automobile fuel pump test auxiliary device according to claim 1, characterized in that: The automobile fuel pump test auxiliary device further comprises a thermometer (8), wherein the thermometer (8) is inserted into the accommodating cavity (11), and the thermometer (8) is used to detect the temperature of the fuel in the fuel tank (2).

10. The automobile fuel pump test auxiliary device according to claim 1, characterized in that: The automobile fuel pump test auxiliary device also includes a fixing seat (9), the fixing seat (9) is located in the accommodating cavity (11), one end of the fixing seat (9) is fixedly connected to the bottom of the water tank (1), and the other end of the fixing seat (9) is fixedly connected to the fuel tank (2).

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