A bidirectional output electronic oil pump for a vehicle and a vehicle

Abstract

This utility model relates to the field of vehicle fuel pump technology, and more particularly to a bidirectional output electronic fuel pump and vehicle for use in vehicles. The bidirectional output electronic fuel pump for vehicles includes a pump body with a pump chamber inside, and a pump rotor disposed within the pump chamber; a first port located on a first side of the pump rotor, connected to the pump chamber; a second port located on a second side of the pump rotor, connected to the pump chamber, and equipped with a first check valve to allow only fuel intake; and a third port located on a second side of the pump rotor, connected to the pump chamber, and equipped with a second check valve to allow only fuel supply. This bidirectional output electronic fuel pump and vehicle for use in vehicles solve the problems of how to enable the electronic fuel pump to supply fuel to the engine and how to draw fuel from the main fuel tank and supply fuel to the auxiliary fuel tank.

Description

Technical Field

[0001] This application relates to the field of vehicle oil pump technology, and in particular to a bidirectional output electronic oil pump for vehicles and a vehicle. Background Technology

[0002] As a key component of the fuel system in heavy-duty trucks, the electronic fuel pump primarily performs the dual functions of fuel suction and supply. In existing technologies, the electronic fuel pump is typically located on an auxiliary fuel tank next to the main fuel tank, and its main function is to provide auxiliary fuel supply support during engine start-up.

[0003] However, with the continuous optimization of heavy-duty truck fuel system design, the functional configuration of existing electronic fuel pumps can no longer fully meet actual needs. Therefore, there is an urgent need for a new type of electronic fuel pump that can simultaneously supply fuel to the engine and draw fuel from the main fuel tank and supply fuel to the auxiliary fuel tank. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a bidirectional output electronic oil pump and vehicle for use in a vehicle, so as to solve the problem of how to enable the electronic oil pump to supply oil to the engine and to draw oil from the main oil tank and supply oil to the auxiliary oil tank.

[0005] According to a first aspect of this utility model, a bidirectional output electronic oil pump for a vehicle is provided, wherein the bidirectional output electronic oil pump for a vehicle includes: an oil pump body having an oil pump chamber formed therein, and an oil pump rotor disposed within the oil pump chamber; a first oil port disposed on a first side of the oil pump rotor, the first oil port communicating with the oil pump chamber; a second oil port disposed on a second side of the oil pump rotor, the second oil port communicating with the oil pump chamber, and a first one-way valve disposed within the second oil port, such that the second oil port can only draw oil; and a third oil port disposed on a second side of the oil pump rotor, the third oil port communicating with the oil pump chamber, and a second one-way valve disposed within the third oil port, such that the third oil port can only supply oil; when the oil pump rotor rotates in a first direction, the first oil port draws oil and the third oil port supplies oil; when the oil pump rotor rotates in a second direction, the second oil port draws oil and the first oil port supplies oil.

[0006] Preferably, a first oil passage is formed inside the oil pump body, the first oil passage is located on the first side of the oil pump rotor, the first oil port is located below the first oil passage, and the first oil port is connected to the oil pump cavity through the first oil passage.

[0007] Preferably, a second oil passage is formed inside the oil pump body. The second oil passage is located on the second side of the oil pump rotor. The second oil port and the third oil port are located below the second oil passage and are connected to the oil pump cavity through the second oil passage.

[0008] Preferably, a motor cavity is further formed inside the oil pump body, and a motor is installed inside the motor cavity. The motor cavity is located at the upper part of the oil pump cavity, and a pressure relief valve is provided between the motor cavity and the oil pump cavity, so that the motor cavity can discharge oil to the oil pump cavity through the pressure relief valve.

[0009] Preferably, the pressure relief valve includes a first pressure relief valve, which is disposed on the first side of the oil pump rotor. When the oil pump rotor rotates in the first direction, the motor cavity can be connected to the oil pump cavity through the first pressure relief valve.

[0010] Preferably, the pressure relief valve includes a second pressure relief valve, which is disposed on the second side of the oil pump rotor. When the oil pump rotor rotates in the second direction, the motor cavity can be connected to the oil pump cavity through the second pressure relief valve.

[0011] Preferably, a control cavity is also formed inside the oil pump body. The control cavity is located above the motor cavity. An angle sensor is installed in the control cavity. A magnet is installed in the motor cavity. The control cavity and the motor cavity are separated by a partition.

[0012] Preferably, the partition is a plastic injection molded part, and a main shaft is also provided inside the oil pump body. The main shaft passes through the motor cavity and the oil pump cavity. The motor and the oil pump rotor are mounted on the main shaft, and the magnet is located at the top end of the main shaft.

[0013] Preferably, the first oil port, the second oil port, and the third oil port are arranged in a row at the bottom of the oil pump body, and the first oil port, the second oil port, and the third oil port are spaced apart from each other.

[0014] According to a second aspect of the present invention, a vehicle is provided, wherein the vehicle includes a bidirectional output electronic oil pump for a vehicle as described above.

[0015] This utility model relates to a bidirectional output electronic oil pump for vehicles and a vehicle. The pump body has an internal oil pump chamber, within which an oil pump rotor is installed. A first oil port is located on the first side of the oil pump rotor, while a second and third oil port are located on the second side. A first check valve is installed in the second oil port, allowing it to draw oil only. A second check valve is installed in the third oil port, allowing it to supply oil only. With this configuration, when the oil pump rotor rotates in a first direction, the first oil port draws oil, and the third oil port supplies oil; when the oil pump rotor rotates in a second direction, the second oil port draws oil, and the first oil port supplies oil, thus achieving bidirectional oil intake and output. This effectively solves the problem of how the electronic oil pump can supply oil to the engine and draw oil from the main oil tank and supply oil to the auxiliary oil tank.

[0016] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a bidirectional output electronic oil pump for vehicles according to this utility model.

[0019] Figure 2 This is a schematic diagram of a bidirectional output electronic oil pump for vehicles according to this utility model.

[0020] Figure 3 This is a schematic diagram from another angle of the bidirectional output electronic oil pump for vehicles according to this utility model.

[0021] Reference numerals in the attached drawings: 1-Oil pump body; 10-Oil pump rotor; 11-First oil passage; 12-Second oil passage; 2-First oil port; 3-Second oil port; 30-First check valve; 4-Third oil port; 40-Second check valve; 5-Motor; 61-First pressure relief valve; 62-Second pressure relief valve; 7-Angle sensor; 8-Baffle plate; 9-Main shaft; 90-Magnet; 100-Oil pump chamber; 200-Motor chamber; 300-Control chamber. Detailed Implementation

[0022] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0023] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0024] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.

[0025] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0026] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0027] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.

[0028] The terminology used herein is for the purpose of describing various examples only and is not intended to limit the examples. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0029] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0030] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0031] like Figures 1 to 3 As shown, according to the first aspect of the present invention, a bidirectional output electronic oil pump for a vehicle is provided, the bidirectional output electronic oil pump for a vehicle includes an oil pump body 1, a first oil port 2, a second oil port 3 and a third oil port 4.

[0032] In the following description, reference will be made to Figures 1 to 3 The specific structure of the aforementioned components of the bidirectional output electronic oil pump for vehicles and the connection relationship of the aforementioned components are described in detail.

[0033] like Figures 1 to 3 As shown, in this embodiment, an oil pump chamber 100 may be formed inside the oil pump body 1. An oil pump rotor 10 may be disposed within the oil pump chamber 100. A first oil port 2 may be located on a first side of the oil pump rotor 10 (e.g., [missing information]). Figure 1(As shown on the left). The first oil port 2 is connected to the oil pump chamber 100. The second oil port 3 can be located on the second side of the oil pump rotor 10 (as shown on the left). Figure 1 (As shown on the right side). The second oil port 3 is connected to the oil pump chamber 100. A first check valve 30 may also be provided inside the second oil port 3, so that the second oil port 3 can only draw oil. The third oil port 4 may be located on the second side of the oil pump rotor 10 (such as...). Figure 1 (As shown on the right). The third oil port 4 is connected to the oil pump chamber 100. A second check valve 40 may also be provided inside the third oil port 4, so that the third oil port 4 can only supply oil. With this configuration, when the oil pump rotor 10 rotates in the first direction (which can be clockwise), the first oil port 2 draws in oil, and the third oil port 4 supplies oil; when the oil pump rotor 10 rotates in the second direction (which can be counterclockwise), the second oil port 3 draws in oil, and the first oil port 2 supplies oil.

[0034] Preferred, such as Figures 1 to 3 As shown, in this embodiment, the first oil port 2, the second oil port 3, and the third oil port 4 can be arranged in a row at the bottom of the oil pump body 1. More preferably, the first oil port 2, the second oil port 3, and the third oil port 4 can be arranged at intervals between each other.

[0035] Preferred, such as Figures 1 to 3 As shown, in this embodiment, a first oil passage 11 may be formed within the oil pump body 1. The first oil passage 11 may be located on the first side of the oil pump rotor 10 (e.g., [example available]). Figure 1 (As shown on the left). The first oil port 2 can be located below the first oil passage 11. The top of the first oil port 2 is connected to the first oil passage 11, so that the first oil port 2 can be connected to the oil pump chamber 100 through the first oil passage 11. When the oil pump rotor 10 rotates in the first direction, the oil pump chamber 100 on the first oil passage 11 side forms a negative pressure, so that the first oil port 2 can draw in oil. When the oil pump rotor 10 rotates in the second direction, the oil pump chamber 100 on the first oil passage 11 side forms a positive pressure, so that the first oil port 2 can supply oil.

[0036] Preferred, such as Figures 1 to 3 As shown, in this embodiment, a second oil passage 12 may be formed within the oil pump body 1. The second oil passage 12 may be located on the second side of the oil pump rotor 10 (e.g., [example available]). Figure 1(As shown on the right). The second oil port 3 and the third oil port 4 can be located below the second oil passage 12. The top ends of the second oil port 3 and the third oil port 4 are connected to the second oil passage 12, so that the second oil port 3 and the third oil port 4 can be connected to the oil pump chamber 100 through the second oil passage 12. When the oil pump rotor 10 rotates along the first direction, the oil pump chamber 100 on the second oil passage 12 side is under positive pressure, causing the first check valve 30 in the second oil port 3 to close and the second check valve 40 in the third oil port 4 to open, allowing the third oil port 4 to supply oil. When the oil pump rotor 10 rotates along the second direction, the oil pump chamber 100 on the second oil passage 12 side is under negative pressure, causing the second check valve 40 in the third oil port 4 to close and the first check valve 30 in the second oil port 3 to open, allowing the second oil port 3 to draw oil.

[0037] Preferred, such as Figures 1 to 3 As shown in the embodiment, a motor cavity 200 may also be formed within the oil pump body 1, and the motor cavity 200 may be disposed in the upper part of the oil pump cavity 100. A motor 5 may be disposed within the motor cavity 200. A main shaft 9 is disposed within the oil pump body 1. The main shaft 9 may pass through the motor cavity 200 and the oil pump cavity 100. The motor 5 and the oil pump rotor 10 may be mounted on the main shaft 9, enabling transmission between the motor 5 and the oil pump rotor 10, thereby driving the oil pump rotor 10 to rotate in a specified direction.

[0038] Further optimized, such as Figures 1 to 3 As shown in the embodiment, due to the high pressure generated by the oil pump during operation, some oil leaks from the oil pump chamber 100 through the shaft hole clearance of the main shaft 9 into the motor chamber 200. As the oil pump continues to operate, the pressure in the motor chamber 200 will gradually increase. Therefore, a pressure relief valve can be provided between the motor chamber 200 and the oil pump chamber 100, allowing the motor chamber 200 to discharge oil to the oil pump chamber 100 through the pressure relief valve, thereby reducing the pressure within the motor chamber 200.

[0039] Furthermore, preferably, such as Figure 1 As shown, in this embodiment, the pressure relief valve may include a first pressure relief valve 61 and a second pressure relief valve 62. The first pressure relief valve 61 may be located within the oil pump chamber 100 on the first oil passage 11 side (i.e., the first pressure relief valve 61 is located on the first side of the oil pump rotor 10). When the oil pump rotor 10 rotates in the first direction, a negative pressure is formed within the oil pump chamber 100 on the first oil passage 11 side. At this time, the first pressure relief valve 61 opens, and the motor chamber 200 can be connected to the oil pump chamber 100 through the first pressure relief valve 61 to discharge oil and relieve pressure.

[0040] The second pressure relief valve 62 can be installed in the oil pump chamber 100 on the side of the second oil passage 12 (i.e., the second pressure relief valve 62 is installed on the second side of the oil pump rotor 10). When the oil pump rotor 10 rotates in the second direction, a negative pressure is formed in the oil pump chamber 100 on the side of the second oil passage 12. At this time, the second pressure relief valve 62 opens, and the motor chamber 200 can be connected to the oil pump chamber 100 through the second pressure relief valve 62 to discharge oil and relieve pressure.

[0041] In addition, preferred, such as Figures 1 to 3 As shown, in this embodiment, a control cavity 300 may be formed within the oil pump body 1, and the control cavity 300 may be located above the motor cavity 200. The control cavity 300 can be used to mount a control circuit board. Additionally, an angle sensor 7 is also provided within the control cavity 300, and a magnet 90 is provided within the motor cavity 200. Specifically, the magnet 90 may be mounted on the top of the spindle 9. To ensure the airtightness of the control cavity 300, the control cavity 300 and the motor cavity 200 may be separated by a partition 8.

[0042] In a further preferred embodiment, since the angle sensor 7 and the magnet 90 need to be kept within a preset distance, the partition 8 needs to be relatively thin. The partition 8 can be a plastic injection molded part, and the top of the control cavity 300 can be a plastic injection molded motor cover, that is, the control cavity 300 is formed by a plastic injection molded part. The partition 8 cooperates with the pressure relief valve so that the bidirectional output electronic oil pump for the vehicle can ensure the working strength of the partition 8 while also maintaining the distance between the angle sensor 7 and the magnet 90.

[0043] Furthermore, according to a second aspect of the present invention, a vehicle is provided, the vehicle including the bidirectional output electronic oil pump for vehicles as described above.

[0044] During operation, when the pump rotor 10 of the vehicle's bidirectional output electronic oil pump rotates in the first direction, the first oil port 2 draws in oil, the third oil port 4 supplies oil, the first pressure relief valve 61 opens, and the motor cavity 200 is connected to the oil pump cavity 100 through the first pressure relief valve 61. When the pump rotor 10 rotates in the second direction, the second oil port 3 draws in oil, the first oil port 2 supplies oil, the second pressure relief valve 62 opens, and the motor cavity 200 is connected to the oil pump cavity 100 through the second pressure relief valve 62. This enables the vehicle's bidirectional output electronic oil pump to achieve bidirectional oil intake and exhaust functions.

[0045] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

1. A bidirectional output electronic oil pump for vehicles, characterized in that, The bidirectional output electronic oil pump for the vehicle includes: The oil pump body has an oil pump chamber inside, and an oil pump rotor is installed inside the oil pump chamber; A first oil port is provided on the first side of the oil pump rotor, and the first oil port is connected to the oil pump chamber; A second oil port is located on the second side of the oil pump rotor, and the second oil port communicates with the oil pump chamber. A first check valve is installed inside the second oil port, allowing the second oil port to only draw in oil; and The third oil port is located on the second side of the oil pump rotor. The third oil port is connected to the oil pump chamber. A second check valve is installed in the third oil port so that the third oil port can only supply oil. When the oil pump rotor rotates in the first direction, the first oil port draws in oil and the third oil port supplies oil; when the oil pump rotor rotates in the second direction, the second oil port draws in oil and the first oil port supplies oil.

2. The bidirectional output electronic oil pump for vehicles according to claim 1, characterized in that, A first oil passage is formed inside the oil pump body. The first oil passage is located on the first side of the oil pump rotor. The first oil port is located below the first oil passage and is connected to the oil pump cavity through the first oil passage.

3. The bidirectional output electronic oil pump for vehicles according to claim 2, characterized in that, A second oil passage is formed inside the oil pump body. The second oil passage is located on the second side of the oil pump rotor. The second oil port and the third oil port are located below the second oil passage. The second oil port and the third oil port are connected to the oil pump cavity through the second oil passage.

4. The bidirectional output electronic oil pump for vehicles according to claim 3, characterized in that, The oil pump body also has a motor cavity, in which a motor is installed. The motor cavity is located at the upper part of the oil pump cavity. A pressure relief valve is provided between the motor cavity and the oil pump cavity, and the motor cavity can discharge oil to the oil pump cavity through the pressure relief valve.

5. The bidirectional output electronic oil pump for vehicles according to claim 4, characterized in that, The pressure relief valve includes a first pressure relief valve, which is disposed on the first side of the oil pump rotor. When the oil pump rotor rotates in the first direction, the motor cavity can be connected to the oil pump cavity through the first pressure relief valve.

6. The bidirectional output electronic oil pump for vehicles according to claim 5, characterized in that, The pressure relief valve includes a second pressure relief valve, which is disposed on the second side of the oil pump rotor. When the oil pump rotor rotates in the second direction, the motor cavity can be connected to the oil pump cavity through the second pressure relief valve.

7. The bidirectional output electronic oil pump for vehicles according to claim 4, characterized in that, The oil pump body also has a control cavity, which is located above the motor cavity. An angle sensor is installed in the control cavity, and a magnet is installed in the motor cavity. The control cavity and the motor cavity are separated by a partition.

8. The bidirectional output electronic oil pump for vehicles according to claim 7, characterized in that, The partition is a plastic injection molded part. The main shaft is also provided inside the oil pump body. The main shaft passes through the motor cavity and the oil pump cavity. The motor and the oil pump rotor are mounted on the main shaft. The magnet is located at the top of the main shaft.

9. The bidirectional output electronic oil pump for a vehicle according to any one of claims 1 to 8, characterized in that, The first oil port, the second oil port, and the third oil port are arranged in a row at the bottom of the oil pump body, and the first oil port, the second oil port, and the third oil port are arranged at intervals.

10. A vehicle, characterized in that, The vehicle includes a bidirectional output electronic oil pump for a vehicle according to any one of claims 1 to 9.

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