Engine oil duct structure, control method and vehicle

Abstract

The invention relates to the technical field of engines, and particularly discloses an engine oil duct structure, a control method and a vehicle, and the engine oil duct structure comprises an engine cylinder body, an oil duct assembly, a delivery pump, a control valve and a plurality of piston cooling nozzles. The oil supply cavity and the cylinder body oil duct are both communicated with the oil duct assembly, and the control valve is installed in the oil supply cavity, so that the control valve can control the amount of oil entering the oil duct assembly from the oil supply cavity according to different working conditions of an engine, and therefore the amount of oil entering the piston cooling nozzle from the oil duct assembly is controlled; therefore, the purpose of accurately controlling the amount of the engine oil entering the piston cooling nozzle is achieved, and the problem that in the prior art, an engine oil duct structure cannot accurately control the amount of the engine oil entering the piston cooling nozzle, and consequently the power consumption of an engine cannot be reduced is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of engines, and in particular to an engine oil passage structure, a control method and a vehicle. Background Art

[0002] In recent years, with the continuous improvement of engine fuel economy requirements, the engine lubrication system has also been continuously optimized. Among them, in order to reduce engine power consumption and optimize the flow supply of piston cooling nozzles, on-demand distribution is a major technical method. The engine structure in the prior art is compact and has high space requirements. The rearrangement of the piston cooling nozzle will bring about all the adaptive changes of other surrounding parts, and the arrangement is extremely difficult. At the same time, the engine in the prior art cannot achieve precise control of the oil volume of the piston cooling nozzle, resulting in the inability to adapt to different working conditions of the engine, resulting in the problem of being unable to reduce engine power consumption. Summary of the invention

[0003] The purpose of the present invention is to provide an engine oil channel structure, a control method and a vehicle to solve the problem that the engine oil channel structure in the prior art cannot achieve accurate control of the oil amount of the piston cooling nozzle, resulting in the inability to reduce engine power consumption.

[0004] On the one hand, the present invention provides an engine oil passage structure, which includes: an engine cylinder body, having an oil supply chamber and a cylinder oil passage; an oil passage assembly, arranged in the cylinder oil passage or outside the cylinder oil passage, the oil supply chamber and the cylinder oil passage both being connected to the oil passage assembly; a delivery pump, the delivery pump being arranged on the engine cylinder body, the delivery pump being connected to the oil supply chamber, and the delivery pump being capable of delivering oil to the oil supply chamber; a plurality of piston cooling nozzles, the plurality of piston cooling nozzles being connected to the oil passage assembly, and the piston cooling nozzle being capable of spraying the oil in the oil passage assembly; and a control valve installed in the oil supply chamber, the control valve being capable of controlling the amount of oil entering the oil passage assembly from the oil supply chamber according to different working conditions.

[0005] As an optional technical solution for the engine oil passage structure, the oil passage assembly is configured in the cylinder oil passage, and the oil passage assembly is coaxially or eccentrically arranged with the cylinder oil passage.

[0006] As an optional technical solution for the engine oil channel structure, the oil channel assembly includes a hollow oil pipe, a first support assembly and a second support assembly, the first support assembly is arranged at one end of the hollow oil pipe, and the second support assembly is arranged at the other end of the hollow oil pipe, the first support assembly and the second support assembly are both connected to the inner wall of the cylinder oil channel, one end of the hollow oil pipe is connected to the oil supply chamber, and is connected to the cylinder oil channel in an on-off manner, and the multiple piston cooling nozzles are all connected to the hollow oil pipe.

[0007] As an optional technical solution for the engine oil channel structure, the engine oil channel structure also includes a regulating valve, which is arranged on the first support assembly or the hollow oil pipe, and the regulating valve can control the connection or disconnection between the hollow oil pipe and the cylinder oil channel.

[0008] As an optional technical solution for the engine oil channel structure, the first support assembly includes a first support ring and a plurality of first support plates, the first support ring is sleeved on one end of the hollow oil pipe, the plurality of first support plates are all connected to the outer wall of the first support ring and are arranged at intervals along the circumference of the first support ring, and the first support plates are connected to the inner wall of the cylinder oil channel.

[0009] As an optional technical solution for the engine oil channel structure, the second support assembly includes a second support ring and a plurality of second support plates, the second support ring is sleeved on the other end of the hollow oil pipe and blocks the other end of the hollow oil pipe, the plurality of second support plates are all connected to the outer wall of the second support ring and are arranged at intervals along the circumference of the second support ring, and the second support plates are connected to the inner wall of the cylinder oil channel.

[0010] As an optional technical solution for the engine oil channel structure, the hollow oil pipe has a plurality of oil holes, the plurality of oil holes are arranged at intervals along the axial direction of the hollow oil pipe, and are all connected to the cavity of the hollow oil pipe, the piston cooling nozzle is connected to the oil holes, and the plurality of piston cooling nozzles are arranged in a one-to-one correspondence with the plurality of oil holes.

[0011] As an optional technical solution for the engine oil channel structure, the oil hole has a conical sealing structure, and the conical sealing structure can seal the piston cooling nozzle and the oil hole.

[0012] On the other hand, the present invention provides a control method for an engine oil passage structure, which is applied to the engine oil passage structure in any of the above schemes, comprising:

[0013] Get engine load;

[0014] According to different engine loads, the opening of the control valve is adjusted to control the amount of oil entering the oil channel assembly;

[0015] Get engine coolant temperature or engine oil temperature;

[0016] When the engine coolant temperature or the engine oil temperature is at a preset minimum temperature, the opening of the control valve is adjusted according to different engine coolant temperatures or different engine oil temperatures to control the amount of oil entering the oil channel assembly.

[0017] As an optional technical solution of the control method of the engine oil passage structure, the control method of the engine oil passage structure further includes:

[0018] When the control valve fails and the pressure difference between the cylinder oil passage and the oil passage assembly reaches a threshold value, the regulating valve in the engine oil passage structure opens to connect the cylinder oil passage and the oil passage assembly.

[0019] On the other hand, the present invention provides a vehicle, comprising the engine oil channel structure in any of the above schemes.

[0020] The beneficial effects of the present invention are:

[0021] The present invention provides an engine oil passage structure, which includes: an engine cylinder, an oil passage assembly, a delivery pump, a control valve and a plurality of piston cooling nozzles. The engine cylinder has an oil supply chamber and a cylinder oil passage. The engine oil passage structure of the present invention is adopted, the oil supply chamber and the cylinder oil passage are both connected to the oil passage assembly, and the control valve is installed in the oil supply chamber, so that the amount of oil entering the oil passage assembly from the oil supply chamber can be controlled according to different working conditions of the engine through the control valve, thereby controlling the amount of oil entering the piston cooling nozzle from the oil passage assembly, thereby achieving the purpose of accurately controlling the amount of oil entering the piston cooling nozzle, and effectively solving the problem that the engine oil passage structure in the prior art cannot achieve accurate control of the amount of oil in the piston cooling nozzle, resulting in the inability to reduce the power consumption of the engine. The oil passage assembly can be arranged in the cylinder oil passage or outside the cylinder oil passage. In this way, there is no need to rearrange the piston cooling nozzle, and there is no need to make adaptive changes to other peripheral parts in the engine, resulting in the defect of extremely high difficulty in arrangement. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the engine oil passage structure in an embodiment of the present invention;

[0023] Figure 2 for Figure 1 A partial enlarged view of

[0024] Figure 3 Schematic diagram of the structure of the oil channel assembly in an embodiment of the present invention.

[0025] In the figure:

[0026] 1. Engine cylinder block; 11. Oil supply chamber; 12. Cylinder oil passage;

[0027] 2. Oil channel assembly; 21. Hollow oil pipe; 211. Oil hole; 2111. Conical sealing structure; 22. First support assembly; 221. First support ring; 222. First support plate; 23. Second support assembly; 231. Second support ring; 232. Second support plate;

[0028] 3. Delivery pump;

[0029] 4. Piston cooling nozzle;

[0030] 5. Control valve;

[0031] 6. Regulating valve. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] like Figures 1 to 3 As shown, this embodiment provides an engine oil passage structure, which includes an engine cylinder block 1, an oil passage assembly 2, a delivery pump 3, a control valve 5 and a plurality of piston cooling nozzles 4. The engine cylinder block 1 has an oil supply cavity 11 and a cylinder oil passage 12; the oil supply cavity 11 and the cylinder oil passage 12 are both connected to the oil passage assembly 2; the delivery pump 3 is arranged on the engine cylinder block 1, and the delivery pump 3 is connected to the oil supply cavity 11; the plurality of piston cooling nozzles 4 are all connected to the oil passage assembly 2, and the piston cooling nozzles 4 can spray the oil in the oil passage assembly 2; the control valve 5 is installed in the oil supply cavity 11, and the control valve 5 can control the amount of oil entering the oil passage assembly 2 from the oil supply cavity 11 according to different working conditions.

[0037] The engine oil passage structure of the present invention is adopted to connect the oil supply chamber 11 and the cylinder oil passage 12 with the oil passage assembly 2, and the control valve 5 is installed in the oil supply chamber 11. In this way, the control valve 5 can control the amount of oil entering the oil passage assembly 2 from the oil supply chamber 11 according to different working conditions of the engine, thereby controlling the amount of oil entering the piston cooling nozzle 4 from the oil passage assembly 2, thereby achieving the purpose of accurately controlling the amount of oil entering the piston cooling nozzle 4, and effectively solving the problem that the engine oil passage structure in the prior art cannot accurately control the amount of oil in the piston cooling nozzle 4, resulting in the inability to reduce the power consumption of the engine. Among them, the oil passage assembly 2 can be set in the cylinder oil passage 12 or outside the cylinder oil passage 12. In this way, there is no need to rearrange the piston cooling nozzle 4, and there is no need to make adaptive changes to other peripheral parts in the engine, resulting in the defect of extremely high difficulty in arrangement.

[0038] Optionally, the control valve 5 includes but is not limited to a solenoid valve.

[0039] In this embodiment, the oil channel assembly 2 is configured in the cylinder oil channel 12, wherein the oil channel assembly 2 is coaxially arranged with the cylinder oil channel 12, so that it is convenient to set the oil channel assembly 2, and there is no need to rearrange the piston cooling nozzle 4, and there is no need to make adaptive changes to other peripheral parts in the engine.

[0040] Alternatively, the oil passage assembly 2 is eccentrically arranged with respect to the cylinder oil passage 12. Such an arrangement can also solve the problem that the engine has a high space requirement.

[0041] like Figure 2 and Figure 3As shown, the oil passage assembly 2 includes a hollow oil pipe 21, a first support assembly 22 and a second support assembly 23. The first support assembly 22 is arranged at one end of the hollow oil pipe 21, and the second support assembly 23 is arranged at the other end of the hollow oil pipe 21. The first support assembly 22 and the second support assembly 23 are both connected to the inner wall of the cylinder oil passage 12, so that the first support assembly 22 and the second support assembly 23 can support both ends of the hollow oil pipe 21, and can also isolate the hollow oil pipe 21 and the cylinder oil passage 12.

[0042] Furthermore, one end of the hollow oil pipe 21 is connected to the oil supply chamber 11 and is connected to the cylinder oil channel 12 in an on-off manner. Multiple piston cooling nozzles 4 are all connected to the hollow oil pipe 21, so that the oil in the oil supply chamber 11 can smoothly enter the multiple piston cooling nozzles 4 through the hollow oil pipe 21.

[0043] Specifically, the engine oil passage structure also includes a regulating valve 6. The regulating valve 6 is arranged on the first support assembly 22 or the hollow oil pipe 21, and the hollow oil pipe 21 and the cylinder oil passage 12 can be connected or disconnected by the regulating valve 6. The regulating valve 6 is in a normally closed state. When the control valve 5 is stuck or other faults occur, in order to ensure the safe operation of the engine, when the oil pressure difference between the cylinder oil passage 12 and the hollow oil pipe 21 reaches a threshold, the regulating valve 6 is opened to connect the cylinder oil passage 12 with the hollow oil pipe 21.

[0044] Optionally, the regulating valve 6 includes but is not limited to being a bypass valve.

[0045] like Figure 3 As shown, the first support assembly 22 includes a first support ring 221 and a plurality of first support plates 222. The first support ring 221 is sleeved on one end of the hollow oil pipe 21, and the plurality of first support plates 222 are all connected to the outer wall of the first support ring 221, and are arranged at intervals along the circumference of the first support ring 221, and the first support plates 222 are connected to the inner wall of the cylinder oil passage 12. In this way, the plurality of first support plates 222 are all connected to the inner wall of the cylinder oil passage 12, which ensures the connection strength between the first support ring 221 and the inner wall of the cylinder oil passage 12, and ensures the stability and reliability during operation.

[0046] In this solution, the second support assembly 23 includes a second support ring 231 and a plurality of second support plates 232. The second support ring 231 is sleeved on the other end of the hollow oil pipe 21 and blocks the other end of the hollow oil pipe 21. The plurality of second support plates 232 are connected to the outer wall of the second support ring 231 and are arranged at intervals along the circumference of the second support ring 231. The second support plates 232 are connected to the inner wall of the cylinder oil passage 12. In this way, the second support ring 231 can effectively ensure that the hollow oil pipe 21 and the cylinder oil passage 12 are separated.

[0047] Furthermore, the hollow oil pipe 21 has a plurality of oil holes 211. The plurality of oil holes 211 are arranged at intervals along the axial direction of the hollow oil pipe 21, and are all connected to the cavity of the hollow oil pipe 21, and the piston cooling nozzle 4 is connected to the oil hole 211, and the plurality of piston cooling nozzles 4 are arranged in a one-to-one correspondence with the plurality of oil holes 211, thereby achieving the purpose of connecting the plurality of piston cooling nozzles 4 and the hollow oil pipe 21.

[0048] In this embodiment, the oil hole 211 has a conical sealing structure 2111. The conical sealing structure 2111 can seal the piston cooling nozzle 4 and the oil hole 211, thereby improving the sealing performance between the piston cooling nozzle 4 and the oil hole 211.

[0049] The present embodiment also provides a control method for an engine oil passage structure, which is applied to the engine oil passage structure in the above-mentioned scheme, and includes: obtaining an engine load; adjusting the opening of a control valve 5 according to different engine loads to control the amount of oil entering the oil passage assembly 2; obtaining an engine coolant temperature or an engine oil temperature; when the engine coolant temperature or the engine oil temperature is at a preset minimum temperature, adjusting the opening of the control valve 5 according to different engine coolant temperatures or different engine oil temperatures to control the amount of oil entering the oil passage assembly 2.

[0050] It should be noted that when the control valve 5 is under different engine loads, different control valve 5 openings are output through calculation to meet different piston cooling oil quantities under different engine loads; when the engine coolant temperature or oil temperature is relatively low, different control valve 5 openings are output according to the engine coolant temperature or oil temperature, so that the oil is discharged through the piston cooling nozzle 4, reducing the main oil channel oil pressure, thereby reducing friction consumption and improving the fuel economy of the engine. Among them, under the above two opening requirements of the control valve 5, the control valve 5 is executed at the maximum opening under any engine condition.

[0051] Furthermore, the control method of the engine oil channel structure also includes: when the control valve 5 fails and the pressure difference between the cylinder oil channel 12 and the oil channel assembly 2 reaches a threshold value, the regulating valve 6 in the engine oil channel structure opens to connect the cylinder oil channel 12 and the oil channel assembly 2, thereby ensuring the normal operation of the engine.

[0052] This embodiment further provides a vehicle, characterized in that it includes the engine oil passage structure in the above scheme. In the vehicle using the present invention, the oil supply chamber 11 and the cylinder oil passage 12 are both connected to the oil passage assembly 2, and the control valve 5 is installed in the oil supply chamber 11, so that the control valve 5 can control the amount of oil entering the oil passage assembly 2 from the oil supply chamber 11 according to different working conditions of the engine, thereby controlling the amount of oil entering the piston cooling nozzle 4 from the oil passage assembly 2, thereby achieving the purpose of accurately controlling the amount of oil entering the piston cooling nozzle 4, and effectively solving the problem that the engine oil passage structure in the prior art cannot achieve accurate control of the amount of oil in the piston cooling nozzle 4, resulting in the inability to reduce the power consumption of the engine. Among them, the oil passage assembly 2 can be arranged in the cylinder oil passage 12 or outside the cylinder oil passage 12. In this arrangement, there is no need to rearrange the piston cooling nozzle 4, and there is no need to make adaptive changes to other peripheral parts in the engine, resulting in the defect of extremely high difficulty in arrangement.

[0053] The working process of the engine oil channel structure of the present invention is as follows:

[0054] The control valve 5 is installed in the oil supply chamber 11 and communicated with the first end of the hollow oil pipe 21. When the control valve 5 is opened, the oil in the oil supply chamber 11 enters the hollow oil pipe 21 through the control valve 5 via the first support assembly 22 to supply oil to the piston cooling nozzle 4; when the control valve 5 is closed, the oil supply chamber 11 is disconnected from the hollow oil pipe 21, the oil no longer enters the hollow oil pipe 21, and the piston cooling nozzle 4 no longer has oil flowing out; when the control valve 5 is at different openings, there are different flow areas between the oil supply chamber 11 and the hollow oil pipe 21, so that the piston cooling nozzle 4 has different oil supply amounts. In the case of a fault such as the control valve 5 being stuck, in order to ensure the safe operation of the engine, when the oil pressure difference between the cylinder oil passage 12 and the hollow oil pipe 21 reaches a threshold, the regulating valve 6 is opened, and the oil enters the hollow oil pipe 21 from the cylinder oil passage 12 via the regulating valve 6, through the first support assembly 22, and finally flows out from the piston cooling nozzle 4.

[0055] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An engine oil channel structure, characterized in that: include: An engine cylinder block (1) having an oil supply chamber (11) and a cylinder oil passage (12); An oil passage assembly (2) is arranged inside the cylinder oil passage (12) or outside the cylinder oil passage (12), and the oil supply chamber (11) and the cylinder oil passage (12) are both in communication with the oil passage assembly (2); A delivery pump (3), the delivery pump (3) being arranged on the engine cylinder block (1), the delivery pump (3) being in communication with the oil supply chamber (11), and the delivery pump (3) being capable of delivering oil to the oil supply chamber (11); A plurality of piston cooling nozzles (4), each of the plurality of piston cooling nozzles (4) being connected to the oil channel assembly (2), and the piston cooling nozzles (4) being capable of spraying oil in the oil channel assembly (2); A control valve (5) is installed in the oil supply chamber (11), and the control valve (5) can control the amount of oil entering the oil channel assembly (2) from the oil supply chamber (11) according to different working conditions.

2. The engine oil passage structure according to claim 1, characterized in that: The oil passage assembly (2) is arranged in the cylinder oil passage (12), and the oil passage assembly (2) and the cylinder oil passage (12) are coaxially arranged or eccentrically arranged.

3. The engine oil passage structure according to claim 1, characterized in that: The oil passage assembly (2) comprises a hollow oil pipe (21), a first support assembly (22) and a second support assembly (23); the first support assembly (22) is arranged at one end of the hollow oil pipe (21), and the second support assembly (23) is arranged at the other end of the hollow oil pipe (21); the first support assembly (22) and the second support assembly (23) are both connected to the inner wall of the cylinder oil passage (12); one end of the hollow oil pipe (21) is connected to the oil supply chamber (11) and is connected to the cylinder oil passage (12) in an on-off manner; and the plurality of piston cooling nozzles (4) are all connected to the hollow oil pipe (21).

4. The engine oil passage structure according to claim 3, characterized in that: The engine oil channel structure further comprises a regulating valve (6), wherein the regulating valve (6) is arranged on the first support assembly (22) or the hollow oil pipe (21), and the regulating valve (6) is capable of controlling the connection or disconnection between the hollow oil pipe (21) and the cylinder oil channel (12).

5. The engine oil passage structure according to claim 3, characterized in that: The first support assembly (22) comprises a first support ring (221) and a plurality of first support plates (222); the first support ring (221) is sleeved on one end of the hollow oil pipe (21); the plurality of first support plates (222) are all connected to the outer wall of the first support ring (221) and are arranged at intervals along the circumference of the first support ring (221); and the first support plates (222) are connected to the inner wall of the cylinder oil passage (12).

6. The engine oil passage structure according to claim 3, characterized in that: The second support assembly (23) comprises a second support ring (231) and a plurality of second support plates (232); the second support ring (231) is sleeved on the other end of the hollow oil pipe (21) and blocks the other end of the hollow oil pipe (21); the plurality of second support plates (232) are all connected to the outer wall of the second support ring (231) and are arranged at intervals along the circumference of the second support ring (231); the second support plates (232) are connected to the inner wall of the cylinder oil passage (12).

7. The engine oil passage structure according to claim 3, characterized in that: The hollow oil pipe (21) has a plurality of oil holes (211), the plurality of oil holes (211) are arranged at intervals along the axial direction of the hollow oil pipe (21), and are all connected to the cavity of the hollow oil pipe (21), the piston cooling nozzle (4) is connected to the oil hole (211), and the plurality of piston cooling nozzles (4) are arranged in a one-to-one correspondence with the plurality of oil holes (211).

8. The engine oil passage structure according to claim 7, characterized in that: The oil hole (211) has a conical sealing structure (2111), and the conical sealing structure (2111) is capable of sealing the piston cooling nozzle (4) and the oil hole (211).

9. A method for controlling an engine oil channel structure, characterized in that: The engine oil passage structure applied to any one of claims 1 to 8 comprises: Get engine load; According to different engine loads, the opening of the control valve (5) is adjusted to control the amount of oil entering the oil channel assembly (2); Get engine coolant temperature or engine oil temperature; When the engine coolant temperature or the engine oil temperature is at a preset minimum temperature, the opening of the control valve (5) is adjusted according to different engine coolant temperatures or different engine oil temperatures to control the amount of oil entering the oil channel assembly (2).

10. The control method of the engine oil passage structure according to claim 9, characterized in that: The control method of the engine oil passage structure further includes: When the control valve (5) fails and the pressure difference between the cylinder oil passage (12) and the oil passage assembly (2) reaches a threshold value, the regulating valve (6) in the engine oil passage structure opens to connect the cylinder oil passage (12) and the oil passage assembly (2).

11. A vehicle, characterized in that: The invention comprises the engine oil passage structure as described in any one of claims 1 to 8.

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