CN216974962U - Engine and lubricating oil supply system thereof - Google Patents
Engine and lubricating oil supply system thereof Download PDFInfo
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- CN216974962U CN216974962U CN202220325631.0U CN202220325631U CN216974962U CN 216974962 U CN216974962 U CN 216974962U CN 202220325631 U CN202220325631 U CN 202220325631U CN 216974962 U CN216974962 U CN 216974962U
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Abstract
The utility model discloses an engine and a lubricating oil supply system thereof, wherein the engine lubricating oil supply system comprises a main oil duct of an engine body, an oil pan and a main pipeline, wherein a first three-way valve, a one-way valve and an electronic oil pump are arranged on the main pipeline; the oil outlet side of the one-way valve is close to the main oil duct of the engine body; the engine lubricating oil supply system further comprises a branch pipeline, a ball valve is arranged on the branch pipeline, two connection points of the branch pipeline and the main pipeline are respectively a connection point A and a connection point B, the connection point A is located between an oil drainage port of the oil pan and the first three-way valve, and the connection point B is located between the electronic oil pump and the one-way valve. Through controlling the on-off of the three-way valve I and the ball valve, lubricating oil is supplemented under the condition that the engine does not stop, the running rate of the engine is improved, the working reliability of the engine is enhanced, and the maintenance difficulty of the engine is reduced.
Description
Technical Field
The utility model relates to the technical field of engines, in particular to an engine and a lubricating oil supply system thereof.
Background
The patent document with the publication number of 'CN 203730091U' discloses an engine oil system of a high-power diesel generator set, which comprises an oil inlet pipeline, a pre-oil supply pipeline, an oil supplementing pipeline and an oil outlet pipeline, wherein an engine oil filter is arranged on the oil inlet pipeline, the pre-oil supply pipeline and the oil supplementing pipeline are both connected and communicated with a pre-oil supply pump, the oil outlet pipeline is respectively connected and communicated with the pre-oil supply pipeline and a heat exchanger, and the pre-oil supply pipelines at two ends of the pre-oil supply pump are respectively connected with a fourth electromagnetic valve and a second electromagnetic valve; the oil supplementing pipelines at two ends of the pre-oil supply pump are respectively connected with a first electromagnetic valve and a third electromagnetic valve; the oil inlet pipeline, the pre-oil supply pipeline and the oil supplementing pipeline are located on the same side of the heat exchanger and are fixedly connected with the auxiliary unit underframe, and the oil outlet pipeline is located on the other side of the heat exchanger and is fixedly connected with the auxiliary unit underframe. The utility model has reasonable layout and compact structure, realizes multiple purposes of one pump, is beneficial to saving the occupied space of an engine oil system and is convenient to install and debug.
However, the external oil supply system of the existing engine and generator set can only realize the pre-oil supply function before the engine is started. The oil supplementing function and the quick oil discharging function under the stop state in the running process of the engine and the generator set of the engine cannot be taken into consideration, and when the problem of low liquid level/low oil pressure occurs in the running process of the engine, the engine can only be stopped for oil supplementing, so that the problems of reduction of the running rate of the engine and improvement of the maintenance strength are caused.
Disclosure of Invention
In order to overcome the above defects, the first technical problem to be solved by the present invention is to provide an engine lubricating oil supply system, which can supplement lubricating oil under the condition that the engine does not stop, improve the running rate of the engine, enhance the reliability of the engine operation, and reduce the difficulty of engine maintenance.
In order to solve the technical problem, the engine lubricating oil supply system comprises a main oil duct of an engine body, an oil pan and a main pipeline, wherein a first three-way valve, a one-way valve and an electronic oil pump are arranged on the main pipeline, and the electronic oil pump is arranged between the first three-way valve and the one-way valve; the oil outlet side of the one-way valve is close to the main oil duct of the engine body; the engine lubricating oil supply system further comprises a branch pipeline, a ball valve is arranged on the branch pipeline, two connection points of the branch pipeline and the main pipeline are respectively a connection point A and a connection point B, the connection point A is located between an oil drain port of the oil pan and the first three-way valve, and the connection point B is located between the electronic oil pump and the one-way valve.
Furthermore, a second three-way valve is further arranged on the main pipeline, and the second three-way valve is located between the electronic oil pump and the connection point B.
Further, the first three-way valve is an electric three-way valve; the second three-way valve is an electric three-way valve; the ball valve is an electric ball valve; the first three-way valve, the second three-way valve and the ball valve are electrically connected to an engine ECU.
Furthermore, the first three-way valve is a confluence type electric three-way valve.
Further, the second three-way valve is a split-flow electric three-way valve.
Further, an engine oil level meter is arranged in the oil pan and electrically connected to the engine ECU.
Furthermore, the engine lubricating oil supply system further comprises an oil storage tank, and the oil storage tank is connected to the first three-way valve through an oil inlet pipeline.
Furthermore, the engine lubricating oil supply system further comprises an oil drain tank, and the oil drain tank is connected to the second three-way valve through an oil drain pipeline.
Based on a general inventive concept, a second technical problem to be solved by the present invention is to provide an engine, which can supplement lubricating oil without stopping the engine, improve the running rate of the engine, enhance the reliability of the engine, and reduce the difficulty of engine maintenance.
An engine comprises an engine body and further comprises the engine lubricating oil supply system, and the engine main oil gallery of the engine lubricating oil supply system is arranged on the engine body.
Further, the engine is a six-cylinder engine, or the engine is an eight-cylinder engine.
After the technical scheme is adopted, the engine lubricating oil supply system has the beneficial effects that the engine lubricating oil supply system comprises the engine body main oil duct, the oil pan and the main pipeline, the main pipeline is provided with the three-way valve I, the one-way valve and the electronic oil pump, and the electronic oil pump is arranged between the three-way valve I and the one-way valve; the oil outlet side of the one-way valve is close to the main oil duct of the engine body; the engine lubricating oil supply system further comprises a branch pipeline, a ball valve is arranged on the branch pipeline, two connection points of the branch pipeline and the main pipeline are respectively a connection point A and a connection point B, the connection point A is located between an oil drain port of the oil pan and the first three-way valve, and the connection point B is located between the electronic oil pump and the one-way valve. By controlling the on-off of the three-way valve I and the ball valve, lubricating oil is supplemented under the condition that the engine does not stop, the running rate of the engine is improved, the working reliability of the engine is enhanced, and the maintenance difficulty of the engine is reduced.
Drawings
FIG. 1 is a schematic block diagram of an engine-lubricant-supply system of the present invention;
FIG. 2 is an enlarged schematic view of region A of FIG. 1;
FIG. 3 is an enlarged schematic view of region B of FIG. 1;
in the figure, the solid line indicates a conduit for passing lubricating oil therethrough; the dashed lines represent wires;
in the drawings, the direction of the arrow indicates the flow direction of the lubricating oil;
in the figure, 1, an oil level meter; 2. a body; 21. a main oil gallery of the engine body; 3. an oil pan; 31. an oil drainage port; 4. a first three-way valve; 41. a first port of the three-way valve; 42. a second port of the three-way valve; 43. a third port of the three-way valve; 5. an electronic oil pump; 6. an engine ECU; 7. a second three-way valve; 71. a second first port of the three-way valve; 72. a second port of the three-way valve; 73. a third port of the three-way valve; 8. a one-way valve; 9. a ball valve; 91. a ball valve first port; 92. a ball valve second port; 10. an oil storage tank; 11. an oil tank is arranged; 121. a first pipe section; 122. a second pipe section; 123. a pipe section III; 124. a pipe section IV; 13. a branch pipeline; 14. an oil inlet pipeline; 15. an oil discharge pipeline; 16. a connection point A; 17. and a connection point B.
Detailed Description
The utility model is further described with reference to the following figures and examples.
Referring to fig. 1, an engine includes a body 2, and further includes an engine lubricant supply system including a body main oil gallery 21, an oil pan 3, and a main line, the body main oil gallery 21 being provided on the body 2.
The main pipeline is provided with a three-way valve I4, a one-way valve 8 and an electronic oil pump 5, and the electronic oil pump 5 is arranged between the three-way valve I4 and the one-way valve 8; the oil outlet side of the check valve 8 is close to the body main oil gallery 21.
The engine lubricating oil supply system further comprises a branch pipeline 13, the ball valve 9 is arranged on the branch pipeline 13, two connection points of the branch pipeline 13 and the main pipeline are a connection point A16 and a connection point B17 respectively, the connection point A16 is located between the oil drain port 31 and the first three-way valve 4, and the connection point B17 is located between the electronic oil pump 5 and the one-way valve 8.
And a second three-way valve 7 is further arranged on the main pipeline, and the second three-way valve 7 is positioned between the electronic oil pump 5 and a connection point B17.
The first three-way valve 4 is an electric three-way valve; the second three-way valve 7 is an electric three-way valve; the ball valve 9 is an electric ball valve; the three-way valve one 4, the three-way valve two 7, and the ball valve 9 are electrically connected to the engine ECU6 through wires.
The three-way valve one 4 is preferably a converging electric three-way valve. The second three-way valve 7 is a shunting type electric three-way valve.
As shown in fig. 1, 2, and 3, the three ports of the three-way valve-4 are respectively a three-way valve-first port 41, a three-way valve-second port 42, and a three-way valve-third port 43; the three ports of the second three-way valve 7 are a second three-way valve first port 71, a second three-way valve second port 72, and a second three-way valve third port 73, respectively; the two ports of the ball valve 9 are a ball valve first port 91 and a ball valve second port 92, respectively.
The main pipeline is divided into a first pipe segment 121, a second pipe segment 122, a third pipe segment 123 and a fourth pipe segment 124.
The oil drain port 31 of the oil pan 3 is communicated with a first three-way valve port 41 through a first pipe segment 121, a second three-way valve port 42 is communicated with an oil inlet of the electronic oil pump 5 through a second pipe segment 122, an oil outlet of the electronic oil pump 5 is communicated with a first three-way valve port 71 through a third pipe segment 123, a second three-way valve port 72 is communicated with the main oil gallery 21 through a fourth pipe segment 124, and the check valve 8 is arranged on the fourth pipe segment 124.
An oil level meter 1 is provided inside the oil pan 3, and the oil level meter 1 is electrically connected to the engine ECU6 through a wire.
The engine lubricating oil supply system further includes an oil reservoir tank 10, and the oil reservoir tank 10 is communicated with a third port 43 of the three-way valve through an oil inlet line 14.
The engine lubricating oil supply system further comprises an oil drain tank 11, and the oil drain tank 11 is communicated with the second and third three-way valve ports 73 through an oil drain pipeline 15.
The engine is a six-cylinder engine, or the engine is an eight-cylinder engine.
The engine ECU6 controls the communication path of the first three-way valve 4 and the second three-way valve 7 installed in the lubricating oil supply system, and simultaneously controls the opening and closing conditions of the ball valve 9 to realize three functions of pre-oil supply before starting the engine, automatic oil supplement in the starting state and automatic oil discharge in the stopping state.
1) The pre-oil supply working process comprises the following steps:
before starting the engine, the engine ECU6 transmits a pre-fueling command to the three-way valve one 4, the three-way valve two 7, and the ball valve 9. The first three-way valve port 41 and the second three-way valve port 42 of the first three-way valve 4 connect the first pipe segment 121 with the second pipe segment 122, namely the oil drain port 31 connected with the oil pan 3 is connected with the pipeline of the electronic oil pump 5, and the oil inlet pipeline 14 connected with the oil storage tank 10 is closed; a second three-way valve first port 71 and a second three-way valve second port 72 of the second three-way valve 7 connect a third pipe segment 123 with a fourth pipe segment 124, namely, a pipeline connecting the engine body main oil gallery 21 with the electronic oil pump 5 is connected, and an oil drain pipeline 15 connected with the oil drain tank 11 is closed; the ball valve 9 is in a closed state.
When the engine is pre-supplied, the oil pressure generated by the electronic oil pump 5 is about 0.2 MPa. The pressure at the oil outlet side of the check valve 8 is defined as P1, the pressure at the oil inlet side of the check valve 8 is defined as P2, therefore, the pressure P2 at the two sides of the check valve 8 is greater than P1, the check valve 8 is opened, and the smooth pre-oil supply path is realized.
2) The automatic oil supplementing working process in the starting state:
the engine monitors the oil level in the oil pan 3 of the engine through the oil level meter 1, when the oil level in the oil pan 3 of the engine is reduced to a set value (lower limit), the engine ECU6 transmits an oil supplementing instruction to the three-way valve I4, the second port 42 and the third port 43 of the three-way valve I are opened, the first port 41 of the three-way valve I is closed, namely the oil inlet pipeline 14 connected with the oil storage tank 10 is communicated with the second 122 of the pipe section of the electronic oil pump 5, and the first 121 of the pipe section connected with the oil drain port 31 of the oil pan 3 of the engine is closed; the engine ECU6 transmits the oil supplementing command to the second three-way valve 7, and the second three-way valve first port 71 and the second three-way valve second port 72 of the second three-way valve 7 connect the third pipe segment 123 with the fourth pipe segment 124, that is, the pipeline connecting the engine body main oil gallery 21 of the engine with the electronic oil pump 5 is connected, and the oil drain pipeline connecting the oil drain tank 11 is closed.
Because the engine oil pressure generated by the electronic engine oil pump 5 is lower than 0.2MPa, the pressure of the main oil duct 21 of the engine body is far higher than 0.2MPa (when the pressure is lower than 0.2MPa, the engine is alarmed and stopped). Thus, the pressure P2 < P1 on both sides of the check valve 8, the check valve 8 is closed; ball valve 9 is open. The engine oil in the oil storage tank 10 is supplemented into the oil pan 3 of the engine under the starting state of the engine, and the automatic oil supplement is stopped when the supplement liquid level reaches the set value.
3) The automatic oil drainage working process in the shutdown state:
when the engine needs to be changed with oil, the engine is in a stop state, and the engine ECU6 transmits an oil drain instruction to the three-way valve one 4, the three-way valve two 7 and the ball valve 9. The first three-way valve port 41 and the second three-way valve port 42 of the first three-way valve 4 connect the first pipe segment 121 with the second pipe segment 122, namely the oil drain port 31 connected with the oil pan 3 is connected with the pipeline of the electronic oil pump 5, and the oil inlet pipeline 14 connected with the oil storage tank 10 is closed; the second three-way valve port 72 of the second three-way valve 7 is closed, and the fourth pipe section 124 for connecting the electronic oil pump 5 with the main oil passage 21 of the engine body is closed; a second three-way valve first port 71 and a second three-way valve third port 73 of the second three-way valve 7 are opened, and the connecting oil drain tank 11 is communicated with an oil drain pipeline 15 of the electronic oil pump 5; the ball valve 9 is in a closed state. The oil drain port 31 of the oil pan 3 connected with the engine is communicated with the pipeline of the oil drain tank 11, so that the function of quick and automatic oil drainage is realized.
The pre-start oil supply and automatic start oil supply function control command sent by the engine ECU6 may be automatically executed according to a program or manually input and executed as required.
The system has simple structural design, and can realize multiple control targets of pre-oil supply before starting, automatic oil supplement in a starting state and automatic oil discharge in a stopping state only by installing the confluence type electric three-way valve, the diversion type electric three-way valve and the electric ball valve on an oil inlet pipeline and an oil outlet pipeline of an external electronic oil pump which are conventionally configured for a large-cylinder-diameter engine and performing programmed control on the opening of the confluence type electric three-way valve, the diversion type electric three-way valve and the electric ball valve.
The lubricating oil supply system provided by the utility model not only improves the effective operation efficiency of the engine and the generator set, but also reduces the maintenance intensity of the engine.
The technical features (the first three-way valve, the first port of the three-way valve, the second port of the three-way valve, the third port of the three-way valve, the second three-way valve, the first port of the three-way valve, the second port of the three-way valve, the third port of the three-way valve, the first pipe section, the second pipe section, the third pipe section, the fourth pipe section, etc.) referred to in this specification are only for distinguishing the technical features, and do not represent the position relationship, the installation sequence, the working sequence, etc. among the technical features.
In the description of the present specification, it is to be understood that the orientation or positional relationship described by "inside" or the like is based on the orientation or positional relationship shown in the drawings, and is only for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without creative efforts from the above-described conception, and fall within the scope of the present invention.
Claims (10)
1. An engine lubricating oil supply system comprises a main oil gallery of an engine body, an oil pan and a main pipeline, and is characterized in that,
the main pipeline is provided with a first three-way valve, a one-way valve and an electronic oil pump, and the electronic oil pump is arranged between the first three-way valve and the one-way valve; the oil outlet side of the one-way valve is close to the main oil duct of the engine body;
the engine lubricating oil supply system further comprises a branch pipeline, a ball valve is arranged on the branch pipeline, two connection points of the branch pipeline and the main pipeline are respectively a connection point A and a connection point B, the connection point A is located between an oil drain port of the oil pan and the first three-way valve, and the connection point B is located between the electronic oil pump and the one-way valve.
2. The engine-lubricant-supply system of claim 1, wherein a second three-way valve is further provided on the main line, and the second three-way valve is located between the electronic oil pump and the connection point B.
3. The engine-lubricant-supply system of claim 2, wherein the first three-way valve is an electric three-way valve; the second three-way valve is an electric three-way valve; the ball valve is an electric ball valve; the first three-way valve, the second three-way valve and the ball valve are electrically connected to an engine ECU.
4. The engine-lubricant-supply system of claim 3, wherein the first three-way valve is a converging electric three-way valve.
5. The engine-lubricant-supply system of claim 3, wherein the second three-way valve is a split-flow electric three-way valve.
6. The engine-lubricant-supply system of claim 3, wherein an oil level gauge is provided in the oil pan, the oil level gauge being electrically connected to the engine ECU.
7. The engine-lubricant-supply system of claim 1, further comprising a reservoir tank, said reservoir tank being connected to said first three-way valve via an inlet line.
8. The engine-lubricant-supply system of claim 2, further comprising a drain tank connected to the second three-way valve through a drain line.
9. An engine comprising a block, characterized by further comprising an engine-lubricant-supply system according to any one of claims 1 to 8, the block main oil gallery of the engine-lubricant-supply system being provided on the block.
10. The engine of claim 9, wherein the engine is a six cylinder engine or the engine is an eight cylinder engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220325631.0U CN216974962U (en) | 2022-02-17 | 2022-02-17 | Engine and lubricating oil supply system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220325631.0U CN216974962U (en) | 2022-02-17 | 2022-02-17 | Engine and lubricating oil supply system thereof |
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| Publication Number | Publication Date |
|---|---|
| CN216974962U true CN216974962U (en) | 2022-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220325631.0U Active CN216974962U (en) | 2022-02-17 | 2022-02-17 | Engine and lubricating oil supply system thereof |
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| CN (1) | CN216974962U (en) |
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- 2022-02-17 CN CN202220325631.0U patent/CN216974962U/en active Active
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