Oil pump device, engine system and vehicle
By introducing a filter oil circuit and pressure-limiting valve control into the oil pump device, the problem of low cleanliness during oil pump discharge is solved, achieving normal oil supply and reduced power consumption.
Patent Information
- Application Number
- CN202422704301.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-06
AI Technical Summary
In the prior art, when the oil pump leaks, the cleanliness of the oil is low, which leads to increased power consumption of the oil pump or stuck pressure limiting valve, affecting normal oil supply.
An oil pump device is designed, which includes an oil pump body and a filter oil circuit. The discharge oil channel is connected to the filter oil circuit. The oil is first filtered and then discharged. The oil channel connection state is controlled by a pressure limiting valve to ensure the cleanliness and oil pressure of the oil.
The oil cleanliness during the leakage process is improved, the normal oil supply of the oil pump is ensured, and the power consumption of the oil pump is reduced.
Smart Images
Figure CN223359192U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engines, and in particular to an oil pump device, an engine system and a vehicle. Background Art
[0002] The oil pump is a component used to transport the oil in the oil pan to various oil-consuming parts in the engine system. It plays a key role in the lubrication and sealing of the engine system during operation. When the oil pump is supplying oil, the oil in the oil pan is sucked in from the oil suction port of the oil pump and then transported to various oil-consuming parts of the engine system through the oil outlet of the oil pump.
[0003] In the prior art, when the oil pump leaks oil, the oil usually flows back to the oil pan directly after being filtered. This method causes the oil pressure at the oil suction port to decrease, and the subsequent oil supply will cause the power consumption of the oil pump to increase. Another method is that the oil leaks directly from the oil outlet to the oil suction port. In this way, the cleanliness of the oil returned to the oil pan is low, which may easily cause the oil pump pressure limiting valve to get stuck and even affect the normal oil supply of the oil pump.
[0004] Therefore, how to improve the cleanliness of the oil during the leakage process to ensure that the oil pump can supply oil normally while reducing the power consumption of the oil pump has become a technical problem that needs to be solved urgently in this field. Utility Model Content
[0005] The purpose of this utility model is to at least solve the technical problem of how to improve the cleanliness of the oil during the discharge process, thereby ensuring that the oil pump can supply oil normally, while also reducing the power consumption of the oil pump. This purpose is achieved through the following technical solutions:
[0006] In the first aspect, the utility model proposes an oil pump device, which includes an oil pump body and a filter oil circuit, the filter oil circuit is used to filter the oil, and the oil pump body includes: an oil suction port; an oil outlet, which is connected to the oil inlet of the filter oil circuit; and a leakage oil channel, which is integrated inside the oil pump body, the liquid inlet of the leakage oil channel is connected to the oil discharge port of the filter oil circuit, and the liquid outlet of the leakage oil channel is connected to the oil suction port.
[0007] When the oil in this oil pump begins to leak, it first flows out of the oil outlet of the oil pump body. It then enters the filter oil passage through the oil inlet and flows out of the filter oil passage's drain port. The oil then flows through the liquid inlet into the drain oil passage, and finally flows out of the drain oil passage's outlet to the oil suction port of the oil pump body. Therefore, this type of leakage method filters the oil, improving its cleanliness during the leakage process and ensuring the subsequent normal oil supply of the oil pump. Furthermore, the oil remains in the pipeline throughout the entire leakage process, maintaining a high oil pressure and reducing the power consumption of the oil pump when oil supply continues.
[0008] In some embodiments of the present invention, the leakage oil channel includes a first oil channel, a second oil channel and a valve, and the valve is used to control the open and close of the connection between the first oil channel and the second oil channel; one end of the first oil channel away from the connection is a liquid inlet, and one end of the second oil channel away from the connection is a liquid outlet. The valve has a first state and a second state. When the valve is in the first state, the valve blocks the connection, and the first oil channel is disconnected from the second oil channel; when the valve is in the second state, the first oil channel is connected to the second oil channel through the connection.
[0009] In some embodiments of the present invention, the valve is a pressure-limiting valve; when the pressure-limiting valve is in a first state, the oil pressure value of the engine oil in the leakage oil channel is less than a preset oil pressure value; when the pressure-limiting valve is in a second state, the oil pressure value of the engine oil in the leakage oil channel is greater than or equal to the preset oil pressure value; the preset oil pressure value is greater than the oil pressure value at the oil outlet.
[0010] In some embodiments of the present invention, the pressure limiting valve includes a valve core and a return spring; when the pressure limiting valve is in a first state, the valve core blocks the connection; when the pressure limiting valve is in a second state, the position of the valve core and the connection are staggered; the return spring is used to guide the movement of the valve core to switch the pressure limiting valve between the first state and the second state.
[0011] In some embodiments of the present invention, the valve core is a gate valve.
[0012] In some embodiments of the present invention, the filter oil circuit includes a first oil circuit and a second oil circuit connected to the first oil circuit. A filtering mechanism is provided between the first oil circuit and the second oil circuit, and the filtering mechanism is used to filter impurities in the engine oil in the filter oil circuit; the end of the first oil circuit away from the second oil circuit is the oil inlet, and the end of the second oil circuit away from the first oil circuit is the oil outlet.
[0013] In some embodiments of the present invention, the filtering mechanism includes an oil filter.
[0014] In some embodiments of the present invention, the oil filter is a filter filter or a centrifugal filter.
[0015] In a second aspect, the present invention provides an engine system, which includes an engine body, an oil pan, and any one of the above-mentioned oil pump devices, wherein the oil pump device is used to suck the oil in the oil pan into the oil pump body through an oil suction port.
[0016] In a third aspect, the present invention provides a vehicle, which includes the above-mentioned engine system.
[0017] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference numerals are used throughout the accompanying drawings to denote the same components. In the accompanying drawings:
[0019] Figure 1 A schematic structural diagram of an oil pump body in an oil pump device provided by an embodiment of the present utility model;
[0020] Figure 2 A simplified structural diagram of the oil filter circuit in the oil pump device provided in an embodiment of the utility model;
[0021] Figure 3 A schematic diagram of the oil flow direction of the oil pump device provided by an embodiment of the utility model during discharge.
[0022] The reference numerals are as follows:
[0023] 100, oil pump body; 1000, oil suction port; 2000, oil outlet; 3000, drain oil passage; 3100, first oil passage; 3200, second oil passage; 3300, valve; 3001, liquid inlet; 3002, liquid outlet; A, connection point;
[0024] 200, filter oil circuit; 210, first oil circuit; 220, second oil circuit; 230, filter mechanism; 201, oil inlet; 202, oil outlet. DETAILED DESCRIPTION
[0025] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0026] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.
[0027] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.
[0028] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "below" another element or feature would then be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein are interpreted accordingly.
[0029] Figure 1 A schematic structural diagram of an oil pump body in an oil pump device provided by an embodiment of the present utility model; Figure 2 A simplified structural diagram of the oil filter circuit in the oil pump device provided in an embodiment of the utility model; Figure 3 Schematic diagram of the oil flow direction of the oil pump device provided by the embodiment of the utility model during discharge; Figures 1 to 3 As shown, an embodiment of the present invention provides an oil pump device, which includes an oil pump body 100 and a filter oil circuit 200. The filter oil circuit 200 is used to filter the oil, and the oil pump body 100 includes: an oil suction port 1000; an oil outlet 2000, which is connected to the oil inlet 201 of the filter oil circuit 200; and a leakage oil channel 3000, which is integrated into the oil pump body 100, and the liquid inlet 3001 of the leakage oil channel 3000 is connected to the oil discharge port 202 of the filter oil circuit 200, and the liquid outlet 3002 of the leakage oil channel 3000 is connected to the oil suction port 1000.
[0030] In this embodiment, when the oil in this oil pump device starts to leak, the oil first flows out from the oil outlet 2000 of the oil pump body 100; after entering the filter oil circuit 200 through the oil inlet 201, it flows out from the oil discharge port 202 of the filter oil circuit 200; then the oil flows into the leakage oil channel 3000 through the liquid inlet 3001, and finally flows out from the liquid outlet 3002 of the leakage oil channel 3000 to the oil suction port 1000 of the oil pump body 100.
[0031] In this leakage method, the engine oil is filtered, which improves the cleanliness of the oil during the leakage process, thereby ensuring that the oil pump device can supply oil normally afterwards; and during the leakage process, the engine oil circulates in the pipeline throughout the entire process, which can maintain a high oil pressure, and will reduce the power consumption of the oil pump device when continuing to supply oil afterwards.
[0032] Therefore, this oil pump device can achieve: improving the cleanliness of the oil during the leakage process, thereby ensuring that the oil pump device can supply oil normally, and reducing the power consumption of the oil pump device during the subsequent oil supply process.
[0033] refer to Figure 1 According to an optional embodiment of the present invention, the drain oil passage 3000 includes a first oil passage 3100, a second oil passage 3200 and a valve 3300. The valve 3300 is used to control the connection point A (i.e. Figure 1 The part indicated by the middle dotted circle (which connects the first oil channel 3100 with the second oil channel 3200) is on and off; the end of the first oil channel 3100 away from the connection point A is the liquid inlet 3001, and the end of the second oil channel 3200 away from the connection point A is the liquid outlet 3002. The valve 3300 has a first state and a second state. When the valve 3300 is in the first state, the valve 3300 blocks the connection point A, and the first oil channel 3100 is disconnected from the second oil channel 3200; when the valve 3300 is in the second state, the first oil channel 3100 is connected to the second oil channel 3200 through the connection point A.
[0034] In this embodiment, it is easy to understand that in order to ensure that the oil pump device can reduce power consumption when it continues to supply oil, it is necessary to ensure that the oil pressure of the oil leaking to the oil suction port 1000 of the oil pump body 100 is not too low. Therefore, a valve 3300 is set in the leakage oil channel 3000. When the oil pressure flowing into the leakage oil channel 3000 is too low, the valve 3300 maintains the first state, that is, blocks the connection point A, and prevents the leaked oil from returning to the oil suction port 1000 from the leakage oil channel 3000; when the oil pressure in the leakage oil channel 3000 is large enough, the valve 3300 switches to the second state, such as Figure 1 As shown, the first oil passage 3100 is connected to the second oil passage 3200 through the connection point A, so that the leaked oil can return to the oil suction port 1000 through the leakage oil passage 3000.
[0035] Therefore, this arrangement can ensure that the oil leaking to the oil suction port 1000 has sufficient oil pressure, thereby reducing the power consumption of the oil pump device when the oil is continued to be supplied.
[0036] Specifically, according to an optional embodiment of the present invention, valve 3300 is a pressure limiting valve; when the pressure limiting valve is in a first state, the oil pressure value of the engine oil in the leakage oil channel 3000 is less than a preset oil pressure value, and when the pressure limiting valve is in a second state, the oil pressure value of the engine oil in the leakage oil channel 3000 is greater than or equal to the preset oil pressure value; the preset oil pressure value is greater than the oil pressure value at the oil outlet 2000.
[0037] The preset oil pressure value is not specifically limited and can be determined according to actual working conditions, as long as the pressure of the oil finally discharged to the oil suction port 1000 is sufficient to reduce the power consumption of the oil pump device when the oil is subsequently supplied.
[0038] In this embodiment, a preset oil pressure value is set for the limit valve. When the oil pressure value of the engine oil in the leakage oil channel 3000 is less than the preset oil pressure value, it means that the oil pressure of the leaking engine oil is insufficient, and the pressure limiting valve maintains the first state, that is, the connection point A is blocked, and the leaking engine oil is not allowed to return to the oil suction port 1000 from the leakage oil channel 3000; when the oil pressure value of the engine oil in the leakage oil channel 3000 is greater than or equal to the preset oil pressure value, it means that the oil pressure of the leaking engine oil is sufficient, and it switches to the second state, that is, the first oil channel 3100 is connected to the second oil channel 3200 through the connection point A, so that the leaking engine oil can return to the oil suction port 1000 from the leakage oil channel 3000.
[0039] Therefore, the setting of the pressure limiting valve can realize automatic switching between the blocked state and the connected state between the first oil channel 3100 and the second oil channel 3200, thereby improving the efficiency of oil leakage and ensuring that the oil finally leaking to the oil suction port 1000 has sufficient oil pressure, thereby reducing the power consumption of the oil pump device when continuing to supply oil in the future.
[0040] According to an optional embodiment of the present invention, the pressure limiting valve includes a valve core and a return spring; when the pressure limiting valve is in a first state, the valve core blocks the connection A; when the pressure limiting valve is in a second state, the position of the valve core is staggered with the connection A; the return spring is used to guide the movement of the valve core to switch the pressure limiting valve between the first state and the second state.
[0041] In this embodiment, the valve core may be a gate valve. The valve core of the gate valve seals and moves out of the connection A by reciprocating along the first oil passage 3100. The working process of the gate valve is described below in a complete process.
[0042] Initially, the gate valve is in the first state, that is, the connection A is blocked, and the return spring is in the original state (neither extended nor compressed);
[0043] During leakage, if the oil pressure of the engine oil entering the first oil passage 3100 is less than the preset oil pressure value, the valve core of the gate valve remains stationary and the gate valve remains in the first state, that is, it continues to block the connection A; when the oil pressure of the engine oil entering the first oil passage 3100 is greater than or equal to the preset oil pressure value, the oil pressure overcomes the elastic force of the return spring, compresses the return spring and pushes the valve core of the gate valve to move until the valve core moves out of the connection A (that is, the position of the valve core and the connection A are staggered, so that the position of the connection A can be leaked to connect the first oil passage 3100 and the second oil passage 3200), that is, the gate valve switches to the second state, the first oil passage 3100 and the second oil passage 3200 are connected, and the engine oil is discharged to the oil suction port 1000 through the second oil passage 3200;
[0044] When the leakage is completed, the oil pressure of the engine oil in the first oil channel 3100 will be lower than the preset oil pressure value, or there will be no engine oil. At this time, the return spring will gradually extend from the contracted state under the action of its own elastic force, thereby returning the valve core to the connection point A to seal the connection point A, thereby realizing the switching of the gate valve from the second state to the first state.
[0045] It should be noted that the type of pressure limiting valve in this embodiment is only for specific illustration. In actual working conditions, the type of pressure limiting valve can be determined according to working conditions, such as butterfly valve, check valve, etc.
[0046] like Figure 2 As shown, according to an optional embodiment of the present invention, the filter oil circuit 200 includes a first oil circuit 210 and a second oil circuit 220 connected to the first oil circuit 210, and a filtering mechanism 230 is provided between the first oil circuit 210 and the second oil circuit 220, and the filtering mechanism 230 is used to filter impurities in the engine oil in the filter oil circuit 200; the end of the first oil circuit 210 away from the second oil circuit 220 is an oil inlet 201, and the end of the second oil circuit 220 away from the first oil circuit 210 is an oil drain port 202.
[0047] For reference Figures 1 to 3 In this embodiment, after the engine oil flows out from the oil outlet 2000, it enters the first oil circuit 210 through the oil inlet 201, then passes through the filtering mechanism 230 to filter out impurities in the engine oil, and then flows into the second oil circuit 220. Finally, the engine oil flows into the drain oil channel 3000 from the oil discharge port 202 of the second oil circuit 220.
[0048] Therefore, this setting method, through the setting of the filtering mechanism 230, realizes the filtering of the engine oil in the filter oil circuit 200, ensuring the cleanliness of the engine oil that finally flows into the leakage oil channel 3000, thereby preventing the pressure limiting valve from getting stuck, and further ensuring that the oil pump device can subsequently supply oil normally.
[0049] According to an optional embodiment of the present invention, the filtering mechanism 230 includes an oil filter.
[0050] In this embodiment, the oil filter can filter out metal debris, mechanical impurities and residual oxides in the oil. After filtering out the above impurities, it can prevent wear of engine parts and prevent pipeline blockage, and the filtering effect is good.
[0051] Specifically, according to an optional embodiment of the present invention, the oil filter is a centrifugal filter. Centrifugal filters have stable performance, reliable structure, no need to replace the filter element, and only require regular disassembly of the rotor for maintenance, resulting in a long service life.
[0052] It should be noted that the oil filter selected as the oil filter in this embodiment is only an example. Under actual working conditions, a suitable type of oil filter can be selected according to specific working conditions, such as a filter filter, which can fully filter the oil to ensure the subsequent normal oil supply of the oil pump device.
[0053] The embodiment of the present invention further provides an engine system, which includes an engine body, an oil pan, and any of the above-mentioned oil pump devices. The oil pump device is used to suck the oil in the oil pan into the oil pump body 100 through the oil suction port 1000.
[0054] The beneficial effects of the engine system in this embodiment are the same as those of any of the aforementioned oil pump devices, namely, improving the cleanliness of the oil during the discharge process, thereby ensuring normal oil supply by the oil pump device while also reducing the power consumption of the oil pump device during subsequent oil supply processes. A detailed analysis will not be repeated here.
[0055] An embodiment of the present invention further provides a vehicle, which includes the above-mentioned engine system.
[0056] In this embodiment, the beneficial effects of the vehicle are the same as the beneficial effects of the above-mentioned engine system, which will not be repeated here.
[0057] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.
Claims
1. An oil pump device, characterized in that: It includes an oil pump body and a filter oil circuit, wherein the filter oil circuit is used to filter the oil. The oil pump body includes: Oil suction port; an oil outlet, connected to the oil inlet of the oil filter circuit; and The drain oil passage is integrated in the oil pump body, the liquid inlet of the drain oil passage is communicated with the oil discharge port of the filter oil circuit, and the liquid outlet of the drain oil passage is communicated with the oil suction port.
2. The oil pump device according to claim 1, characterized in that The drain oil passage includes a first oil passage, a second oil passage, and a valve, wherein the valve is used to control the opening and closing of the connection between the first oil passage and the second oil passage. The end of the first oil passage away from the connection is the liquid inlet, and the end of the second oil passage away from the connection is the liquid outlet. The valve has a first state and a second state. When the valve is in the first state, the valve blocks the connection, and the first oil passage is disconnected from the second oil passage. When the valve is in the second state, the first oil passage is communicated with the second oil passage through the communication portion.
3. The oil pump device according to claim 2, characterized in that The valve is a pressure-limiting valve; When the pressure limiting valve is in the first state, the oil pressure value of the engine oil in the leakage oil passage is less than a preset oil pressure value; when the pressure limiting valve is in the second state, the oil pressure value of the engine oil in the leakage oil passage is greater than or equal to the preset oil pressure value; the preset oil pressure value is greater than the oil pressure value at the oil outlet.
4. The oil pump device according to claim 3, characterized in that The pressure limiting valve includes a valve core and a return spring; When the pressure-limiting valve is in the first state, the valve core blocks the communication point; When the pressure-limiting valve is in the second state, the position of the valve core and the connecting point are staggered; The return spring is used to guide the valve core to move so that the pressure-limiting valve switches between the first state and the second state.
5. The oil pump device according to claim 4, characterized in that: The valve core is a gate valve.
6. The oil pump device according to any one of claims 1 to 5, characterized in that: The filter oil circuit includes a first oil circuit and a second oil circuit connected to the first oil circuit. A filtering mechanism is provided between the first oil circuit and the second oil circuit, and the filtering mechanism is used to filter impurities in the engine oil in the filter oil circuit; the end of the first oil circuit away from the second oil circuit is the oil inlet, and the end of the second oil circuit away from the first oil circuit is the oil outlet.
7. The oil pump device according to claim 6, characterized in that: The filtering mechanism includes an oil filter.
8. The oil pump device according to claim 7, characterized in that: The oil filter is a filter filter or a centrifugal filter.
9. An engine system, characterized in that: The oil pump device comprises an engine body, an oil pan and an oil pump device according to any one of claims 1 to 8, wherein the oil pump device is used to suck the oil in the oil pan into the oil pump body through the oil suction port.
10. A vehicle, characterized in that: Comprising the engine system of claim 9.