Integrated electric pump and valve filter combined device for supplying and returning lubricating oil

Abstract

The utility model belongs to the technical field of mechanical devices, and discloses an integrated electric pump and valve filter combined device for lubricating oil supply and return, which comprises an electric pump, a shell and a lubricating oil filter, the electric pump is arranged at the top of the right side of the shell, and the lubricating oil filter is arranged at the top of the left side of the shell; the electric pump coaxially drives the oil supply stage and the two oil return stages, and the oil supply stage and the two oil return stages are arranged in the shell in an up-down parallel connection mode. The oil supply stage inlet and the two oil return stage inlets are formed in the right side of the shell, the two oil return stages adopt the same oil return stage outlet, the oil return stage outlet is formed in the lower portion of the left side of the shell, and the oil supply stage outlet is formed in the lubricating oil filter. The combined device integrates the electric pump, the oil supply pump, the oil scavenging pump and the oil filter, is compact in structure and reasonable in layout, realizes multifunctional integration of an integrated structure, and is small in size and light in weight.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical devices and relates to an oil supply and return electric pump, in particular to an integrated electric pump valve filter combination device for lubricating oil supply and return. Background Art

[0002] The lubricating oil system is a crucial component of the engine's mechanical system. Providing clean lubricating oil at a constant flow rate and pressure to the bearing cavity, draining excess lubricating oil, and withdrawing lubricating oil from the oil return sump are crucial for maintaining stable engine operation. Currently, lubricating oil systems often rely on piping to connect the oil pump, filter, and various valves to pressurize, filter, and divert the oil supply circuit. This results in a bulky system with a complex piping layout. Furthermore, the oil supply and return circuits are structured separately, further increasing the size and complexity of the supply and return circuits. Utility Model Content

[0003] In order to solve the above problems, the utility model provides an integrated electric pump, valve and filter combination device for lubricating oil supply and return, which can simultaneously provide clean lubricating oil with a specific flow rate and pressure to the bearing cavity, lubricating oil overflow, and recover lubricating oil from the return oil pool, thereby increasing the integration of the oil supply and return device and reducing the device volume and the use of excessive pipelines.

[0004] The technical solution of the utility model is as follows:

[0005] An integrated electric pump, valve and filter combination device for lubricating oil supply and return includes an electric pump, a housing and a lubricating oil filter. The electric pump is arranged at the top of the right side of the housing, and the lubricating oil filter is arranged at the top of the left side of the housing; the electric pump coaxially drives an oil supply stage and two oil return stages, and the oil supply stage and the two oil return stages are arranged in parallel in the housing; the oil supply stage inlet and the two oil return stage inlets are arranged on the right side of the housing, the two oil return stages use the same oil return stage outlet, the oil return stage outlet is arranged at the lower left side of the housing, and the oil supply stage outlet is arranged on the lubricating oil filter.

[0006] Furthermore, an oil passage connecting the oil supply stage in the housing to the oil filter is provided with an adjustable one-way valve for the filter inlet, and an adjustment panel of the adjustable one-way valve for the filter inlet is provided on the outside of the oil filter.

[0007] Furthermore, the lubricating oil filter is also provided with an overflow outlet, an adjustable flow valve and an overflow solenoid valve.

[0008] Furthermore, a safety valve and an air release valve are provided on the right side of the shell.

[0009] Furthermore, a bypass oil circuit is provided between the inlet of the oil filter and the right side of the housing, a bypass valve is provided at the inlet of the bypass oil circuit, and an adjustable pump outlet one-way valve is provided at the outlet of the bypass oil circuit.

[0010] Furthermore, the electric pump is an oil-immersed electric pump, the outlet of the lubricating oil filter is provided with an electric pump lubrication pipeline connected to the top of the electric pump, and the bottom of the electric pump is connected to the cavity where the oil supply stage inlet is located below the shell.

[0011] Technical effects of this utility model:

[0012] 1. The utility model is an integrated electric pump, valve and filter combination device for lubricating oil supply and return. The combination device integrates an electric pump, an oil supply pump, an oil return pump and an oil filter. It has a compact structure and a reasonable layout, realizes the multifunctional integration of an integrated structure, and is small in size and light in weight.

[0013] 2. The electric pump adopts a one-stage oil supply and two-stage oil return structure, which can realize the supply and recovery of lubricating oil at the same time; a lubricating oil filter is set at the outlet of the boost stage of the electric pump oil supply circuit to realize the filtration and cleaning of the lubricating oil; an overflow circuit is set after the lubricating oil filter to realize the opening and closing of the overflow circuit and the adjustment of the flow rate; this device can realize the clean lubricating oil supply at a specific flow rate and pressure, lubricating oil overflow, and lubricating oil recovery in the return oil tank, thereby increasing the integration of the oil supply and return device and reducing the device volume and the use of excessive pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 This is a front view of an integrated electric pump, valve and filter combination device for lubricating oil supply and return according to the utility model.

[0016] Figure 2 The utility model is a top view of an integrated electric pump, valve and filter combination device for lubricating oil supply and return.

[0017] Figure 3 This is a right view of an integrated electric pump, valve and filter combination device for lubricating oil supply and return according to the utility model.

[0018] Figure 4 It is a sectional view of the right side of the utility model;

[0019] Among them, 1—electric pump, 2—housing, 3—one-way return oil filter assembly, 4—two-way return oil filter assembly, 5—adjustable one-way valve for filter inlet, 6—adjustable flow valve, 7—lubricating oil filter, 8—electric pump lubrication pipeline, 9—overflow solenoid valve, 10—bypass valve, 11—adjustable one-way valve for pump outlet, 12—safety valve, 13—air release valve, 14—oil supply inlet, 15—return oil inlet one, 16—return oil inlet two, 17—return oil outlet, 18—oil supply outlet one, 19—oil supply outlet two, 20—overflow outlet, 21—other oil supply inlets. DETAILED DESCRIPTION

[0020] This section is an embodiment of the present invention, which is used to explain and illustrate the technical solution of the present invention. In the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating directions or positional relationships are based on the orientations or positional relationships in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or case referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implying the number of technical features indicated. Therefore, features defined as "first", "second" and the like may explicitly or implicitly include more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integrated connections; mechanical connections, point connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0023] Example 1:

[0024] An integrated electric pump, valve, and filter combination device for lubricating oil supply and return includes an electric pump 1, a housing 2, and a lubricating oil filter 7. The electric pump 1 is arranged at the top of the right side of the housing 2, and the lubricating oil filter 7 is arranged at the top of the left side of the housing 2; the electric pump 1 coaxially drives an oil supply stage and two oil return stages, and the oil supply stage and the two oil return stages are arranged in parallel in the housing 2; the oil supply stage inlet and the two oil return stage inlets are arranged on the right side of the housing 2, and the two oil return stages use the same oil return stage outlet, which is arranged at the lower left side of the housing 2, and the oil supply stage outlet is arranged on the lubricating oil filter 7.

[0025] An oil passage connecting the oil supply stage in the housing 2 to the oil filter 7 is provided with an adjustable one-way valve 5 for the filter inlet, and an adjustment panel of the adjustable one-way valve 5 is provided on the outside of the oil filter 7 .

[0026] The lubricating oil filter 7 is also provided with an overflow outlet, an adjustable flow valve 6 and an overflow solenoid valve 9.

[0027] A safety valve 12 and an air release valve 13 are further provided on the right side of the housing 2 .

[0028] A bypass oil circuit is provided between the inlet of the lubricating oil filter 7 and the right side of the housing 2. A bypass valve 10 is provided at the inlet of the bypass oil circuit, and a pump outlet adjustable one-way valve 11 is provided at the outlet of the bypass oil circuit.

[0029] The electric pump 1 is an oil-immersed electric pump. The outlet of the lubricating oil filter 7 is provided with an electric pump lubrication pipeline 8 connected to the top of the electric pump 1. The bottom of the electric pump 1 is connected to the cavity where the oil supply stage inlet is located below the housing 2.

[0030] Example 2:

[0031] The utility model provides an integrated electric pump, valve and filter combination device for lubricating oil supply and return, which integrates oil supply and return functions and reduces the volume of oil supply and return circuit devices and the use of excessive pipelines.

[0032] This patent proposes an integrated electric pump, valve and filter combination device for lubricating oil supply and return, which integrates the oil supply and return functions. While providing clean lubricating oil of a specific flow rate and pressure to the bearing cavity, it also realizes the functions of lubricating oil overflow and lubricating oil recovery in the return oil pool, reducing the volume of the oil supply and return circuit device and the use of excessive pipelines.

[0033] An integrated electric pump valve filter combination device for lubricating oil supply and return oil, comprising: an electric pump 1, a housing 2, a first-way return oil filter assembly 3, a second-way return oil filter assembly 4, an adjustable one-way valve 5 at the filter inlet, an adjustable flow valve 6, an oil filter 7, an electric pump lubrication line 8, an overflow solenoid valve 9, a bypass valve 10, an adjustable one-way valve 11 at the pump outlet, a safety valve 12, and an air release valve 13.

[0034] The electric pump 1 is placed in the cavity of the housing 2, and the oil supply level inlet of the electric pump 1 corresponds to the oil supply line inlet of the housing 2; the lubricating oil filter 7 is placed in the cavity of the housing 2, and the lubricating oil inlet of the lubricating oil filter 7 corresponds horizontally to the other oil supply line inlets of the housing 2; the first return oil filter assembly 3 and the second return oil filter assembly 4 are respectively installed in the cavities of the return oil line inlet 1 and the return oil line inlet 2 of the housing 2;

[0035] In a possible embodiment, one end of the electric pump lubrication line 8 is connected to the housing 2, and the other end is connected to the electric pump in the electric pump 1, and filtered lubricating oil is used to lubricate and cool the electric pump 1;

[0036] In a possible embodiment, the filter inlet adjustable one-way valve 5 is installed in the other oil supply inlet cavity of the housing 2 to clean the other oil supply lines except the oil supply inlet of the electric pump 1, and can adjust the oil flow rate to prevent the oil from flowing back.

[0037] In a possible embodiment, the adjustable flow valve 6 and the overflow solenoid valve 9 are installed in the overflow path of the housing 2 to realize the on-off and flow regulation of the lubricating oil flowing out of the overflow path outlet of the housing 2;

[0038] In a possible embodiment, the bypass valve 10 is installed in the cavity of the housing 2, and one end of the bypass valve 10 is connected to the inlet of the lubricating oil filter 7, and the other end is connected to the outlet of the lubricating oil filter 7 to prevent the oil filter from being clogged and affecting the oil supply and lubrication of the lubricating oil system;

[0039] In a possible embodiment, the pump outlet adjustable one-way valve 11 is installed in the cavity of the housing 2, corresponding to the oil supply stage outlet of the electric pump 1, to achieve oil flow regulation and prevent oil backflow;

[0040] In a possible embodiment, the safety valve 12 is installed in the cavity of the housing 2, and one end of the safety valve 12 is connected to the oil supply stage inlet of the electric pump 1, and the other end is connected to the oil supply stage outlet of the electric pump 1 to prevent excessive positive or negative pressure differences in the system;

[0041] In a possible embodiment, the air release valve 13 is installed in the cavity of the housing 2 and connected to the oil supply stage inlet of the electric pump 1 to prevent air blockage when the pump is started at low temperature, thereby affecting the lubricating oil supply;

[0042] Firstly, an integrated electric pump, valve and filter combination device structure for lubricating oil supply and return is proposed, which can realize clean lubricating oil supply at a specific flow rate and pressure, lubricating oil overflow, and lubricating oil recovery in the return oil pool, thereby increasing the integration of the oil supply and return device and reducing the device volume and the use of excessive pipelines.

[0043] Secondly, an additional oil supply line inlet is provided in the device, and the oil line is connected to the lubricating oil filter inlet, so that the lubricating oil in other oil lines can be cleaned.

[0044] Thirdly, an air bleed valve is set at the inlet of the boost stage of the electric pump oil supply circuit to prevent air blockage when the pump is started at low temperature, which affects the lubricating oil supply.

[0045] Fourthly, a lubrication pipeline is set for the electric pump after the lubricating oil filter to prevent the electric pump from being damaged due to overheating after long-term operation.

[0046] Fifthly, adjustable one-way valves are installed at the outlet of the electric pump and the inlet of the lubricating oil filter to regulate the flow of lubricating oil and prevent the backflow of lubricating oil.

[0047] Example 3:

[0048] The electric pump in this device adopts a one-stage oil supply and two-stage oil return structure, which can realize the supply and recovery of lubricating oil at the same time; a lubricating oil filter is set at the outlet of the boost stage of the electric pump oil supply circuit to filter and clean the lubricating oil; an overflow circuit is set after the lubricating oil filter, and the overflow circuit can be opened and closed by controlling the overflow solenoid valve.

[0049] In addition to the electric pump oil supply inlet, the device is also equipped with an additional oil supply inlet, which is connected to the oil filter inlet to achieve oil cleaning in other oil circuits;

[0050] Install an air bleed valve at the inlet of the booster stage of the electric pump oil supply circuit to prevent air blockage when the pump is started at low temperature, which may affect the lubricating oil supply.

[0051] Filter assemblies are installed at the inlets of the two-stage oil return lines of the electric pump to prevent excess matter in the return oil from causing the pump to jam;

[0052] On the overflow path of the device, an adjustable flow valve is set after the overflow solenoid valve to adjust the overflow path flow;

[0053] A bypass valve is installed between the inlet and outlet of the oil filter to prevent the oil filter from being clogged and affecting the oil supply and lubrication of the oil system;

[0054] After the oil filter, a lubrication pipeline is installed for the electric pump to prevent the electric pump from being damaged due to overheating after long-term operation;

[0055] A safety valve is installed between the inlet and outlet of the electric pump to prevent excessive positive or negative pressure difference in the system;

[0056] Adjustable one-way valves are installed at the outlet of the electric pump and the inlet of the oil filter to regulate the oil flow and prevent the oil from flowing back.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present invention, and these modifications or replacements should all be included in the protection scope of the present invention.

Claims

1. An integrated electric pump, valve and filter combination device for lubricating oil supply and return, characterized in that: The invention comprises an electric pump (1), a housing (2) and an oil filter (7), wherein the electric pump (1) is arranged at the top of the right side of the housing (2), and the oil filter (7) is arranged at the top of the left side of the housing (2); the electric pump (1) coaxially drives an oil supply stage and two oil return stages, and the oil supply stage and the two oil return stages are arranged in parallel in the housing (2); the oil supply stage inlet and the two oil return stage inlets are arranged on the right side of the housing (2), the two oil return stages use the same oil return stage outlet, the oil return stage outlet is arranged at the lower left side of the housing (2), and the oil supply stage outlet is arranged on the oil filter (7).

2. The integrated electric pump, valve and filter assembly for lubricating oil supply and return according to claim 1, characterized in that: An oil passage connecting the oil supply stage in the housing (2) to the oil filter (7) is provided with an adjustable one-way valve (5) at the filter inlet, and an adjustment panel of the adjustable one-way valve (5) is provided on the outside of the oil filter (7).

3. The integrated electric pump, valve and filter assembly for lubricating oil supply and return according to claim 1, characterized in that: The lubricating oil filter (7) is also provided with an overflow outlet, an adjustable flow valve (6) and an overflow electromagnetic valve (9).

4. The integrated electric pump, valve and filter assembly for lubricating oil supply and return according to claim 1, characterized in that: A safety valve (12) and an air release valve (13) are also provided on the right side of the housing (2).

5. The integrated electric pump, valve and filter assembly for lubricating oil supply and return according to claim 1, characterized in that: A bypass oil circuit is provided between the inlet of the lubricating oil filter (7) and the right side of the housing (2), a bypass valve (10) is provided at the inlet of the bypass oil circuit, and a pump outlet adjustable one-way valve (11) is provided at the outlet of the bypass oil circuit.

6. The integrated electric pump, valve and filter assembly for lubricating oil supply and return according to claim 1, characterized in that: The electric pump (1) is an oil-immersed electric pump. The outlet of the lubricating oil filter (7) is provided with an electric pump lubrication pipeline (8) connected to the top of the electric pump (1). The bottom of the electric pump (1) is connected to the cavity where the oil supply stage inlet is located below the housing (2).

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