CN211262349U - Engine oil consumption detection device - Google Patents

Abstract

The utility model provides an engine oil consumption detection device belongs to mechanical technical field. It has solved the current detection device and has detected the poor problem of accuracy. The engine oil consumption detection device comprises an oil storage tank, a weighing part and an engine oil container I, wherein the oil storage tank is arranged on the weighing part, a first connecting pipe is arranged at the bottom of the first engine oil container, an oil circuit switch is arranged on the first connecting pipe, a second connecting pipe is arranged at the top of the first engine oil container, the oil storage tank is connected with the first engine oil container through a third connecting pipe, an engine oil pump is arranged on the third connecting pipe, and a first contact type liquid level sensor and a first non-contact type liquid level sensor are further arranged in the first engine oil container. The detection device can realize real-time and accurate oil supplement, does not need oil pumping operation, does not cause engine oil pollution, and can accurately measure the engine oil consumption of the engine under the thermal state condition and the engine oil consumption after the engine runs for a long time and is shut down in real time.

Description

Engine oil consumption detection device

Technical Field

The utility model belongs to the technical field of machinery, a engine oil consumption detection device is related to.

Background

The engine oil consumption of the engine is one of important indexes of the engine operation, and directly influences the economy of the whole vehicle and the use feeling of a user. At present, the engine oil consumption of an engine is measured in a common mode of an oil drainage method, and the engine oil in an oil tank is respectively drained into a container before and after the engine runs for a period of time, and the engine oil consumption is measured. The oil discharge method wastes a large amount of time for testing personnel, in addition, the discharged engine oil is basically discarded as waste, and the method is implemented after the engine is stopped, and the engine oil in each oil pipe flows back after the engine is stopped, so that the liquid level of the engine oil is suddenly increased. And after the engine is stopped, the liquid level is reduced due to the expansion caused by heat and contraction caused by cold of the engine oil under the condition of cold state of the engine oil, so that the obtained data is also the data under the condition of cold state of the engine, the error is large, the obtained measurement data has time delay, and in addition, the change condition of the oil consumption along with the operation of the engine cannot be evaluated by an oil discharge method.

For this reason, chinese patent application (201810641425.9) discloses an engine oil consumption measuring device includes the machine oil case, still including weighing the frame, force sensor and batch oil tank, weigh the frame and include the roof, the bottom plate and be located a plurality of bracing pieces between roof and the bottom plate, force sensor upper end and the roof fixed connection who weighs the frame, force sensor lower extreme connection batch oil tank, the batch oil tank is located unsettled setting between a plurality of bracing pieces, be equipped with into oil pipe between batch oil tank and the machine oil case, return oil pipe and communicating pipe to through advancing oil pipe, return oil pipe and communicating pipe intercommunication, advance oil pipe, return oil pipe and the one end that is located the machine oil case communicating pipe and set gradually by going up, advance oil pipe and return oil pipe middle respectively with the oil pump connection, the oil pump is by motor drive.

Foretell measuring device is in the measurement process, through the oil pump incessant to the oiling of machine oil tank bottom, consequently, the injection volume of its machine oil is uncontrollable, consequently when machine oil injection volume exceedes the upper limit, need be with unnecessary machine oil pump withdrawal oil storage tank, because the machine oil of injecting is cold, and the machine oil of drawing out is the hot state again, has great difference between the two, thereby lead to the machine oil in the oil storage tank to be polluted by the machine oil of drawing back easily, lead to the machine oil rotten, thereby influence measured data's accuracy. Meanwhile, due to the principle of expansion with heat and contraction with cold, the hot oil extracted is less than the cold oil added under the same volume, so that the whole measured data has larger deviation. Moreover, because the oil injection and the oil pumping are two completely opposite processes, a certain time difference exists between the oil injection and the oil pumping, so that certain time delay exists during measurement, and the measurement accuracy is poor.

In order to solve the above problems, it is a conventional practice in the art to store the pumped-back oil in another container, but because the oil pump is continuously filled with oil during the whole measurement process, continuous oil pumping is also required, which results in a large amount of oil waste, and the oil consumption is that the pumped-back oil is subtracted from the injected oil, and the measurement personnel need to manually convert the oil again, which is inefficient, and there is a large error in the cold oil entering and the hot oil exiting.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided an engine oil consumption detection device, the utility model aims to solve the technical problem that: how to solve the current detection device and detect the poor problem of accuracy.

The purpose of the utility model can be realized by the following technical proposal: the detection device is characterized by further comprising a first engine oil container, a first connecting pipe used for being communicated with the bottom of an oil pan is arranged at the bottom of the first engine oil container, an oil circuit switch used for controlling the connection and disconnection of the first connecting pipe is arranged on the first connecting pipe, a second connecting pipe used for being communicated with an engine crankcase is arranged at the top of the first engine oil container, the first oil container and the third engine oil container are connected through a three-phase connecting pipe, the engine oil pump is arranged on the third connecting pipe, and a contact type liquid level sensor and a non-contact type liquid level sensor are further arranged in the first engine oil container.

The detection device can be used for detecting the engine oil consumption of the engine in a hot state in real time. During the use, connecting pipe one is connected with the bottom of oil pan, and the oil circuit switch is opened, and connecting pipe two is connected with the engine crankcase to can make the atmospheric pressure in engine oil container one and the oil pan keep unanimous, the engine oil liquid level in the engine oil container one keeps unanimous with the engine oil liquid level in the oil pan, and contact level sensor just touches the engine oil liquid level. In the running process of an engine, when engine oil is consumed, the oil level in an oil pan descends, the oil level in a first engine oil container also descends synchronously, the oil level cannot touch a contact type liquid level sensor, the contact type liquid level sensor does not detect the information of the engine oil, at the moment, the engine oil pump runs to inject the engine oil into the first engine oil container, meanwhile, the non-contact type liquid level sensor detects the specific liquid level amount in the first engine oil container in real time, and the engine oil pump accurately controls the injection amount of the engine oil according to the liquid level amount detected by the non-contact type liquid level sensor, so that the liquid level of the engine oil is accurately returned to. At this time, the change in the weight of the oil storage tank at the weighing position of the weighing member is the instantaneous oil consumption of the engine under the condition.

The detection device is characterized in that an engine oil container I is arranged between an oil pan and an oil storage tank through a brand new structural design, the liquid level between the engine oil container I and the oil pan can be always kept consistent, and the arrangement of a contact type liquid level sensor and a non-contact type liquid level sensor is synchronously matched, the contact type liquid level sensor is used for detecting whether the oil level of the engine oil drops or not, so that whether the engine oil runs and whether the engine oil is added into the engine oil container I or not is determined, the non-contact type liquid level sensor detects the specific oil level drop amount in the engine oil container I in real time, the specific oil amount which needs to be added into the engine oil container I is determined, so that the real-time and accurate oil supplement is realized, oil pumping operation is not needed, the pollution of the engine oil is not caused, and the engine oil which is just injected enters the engine, therefore, the oil consumption of the engine in a hot state can be accurately measured in real time. In addition, after the engine is detected and maintained, fresh engine oil can be automatically supplemented to the oil pan by the device, and testers can completely avoid worrying about the problem of oil shortage of the oil pan in a long-time endurance test.

In the above device for detecting engine oil consumption of an engine, the device further comprises a central controller, the contact type liquid level sensor and the non-contact type liquid level sensor are both connected with an input end of the central controller, and the engine oil pump is connected with an output end of the central controller. When the engine oil is consumed, the liquid level of the engine oil in the oil pan descends, the liquid level of the engine oil in the first engine oil container also descends synchronously along with the liquid level of the engine oil, the contact type liquid level sensor does not detect the information of the engine oil and sends a detection signal to the central controller, the central controller receives the detection information sent back by the contact type liquid level sensor and then sends a control signal to the oil pump of the engine oil control machine to operate, meanwhile, the non-contact type liquid level sensor detects the specific liquid level quantity in the first engine oil container in real time and sends the detection signal to the central controller, and the controller controls the quantity of the engine oil injected into the first engine oil container by the oil pump according to the liquid level information sent back by the non-contact type liquid level sensor, so that the real-time and accurate oil supplement is realized.

In the above device for detecting engine oil consumption, the device further comprises a first rotation speed sensor for detecting the rotation speed of the engine and a first temperature sensor for detecting the temperature of the engine oil, the first rotation speed sensor and the first temperature sensor are both connected with the input end of the central controller, and the oil circuit switch is connected with the output end of the central controller.

After the detection test is finished, the engine is stopped, the engine oil in each pipeline flows back to the oil pan, and the level of the engine oil rises instantly. Through foretell setting for this detection device has possessed the memory function, speed sensor is used for real-time detection engine speed information and transmits for well accuse ware promptly, temperature sensor one is used for real-time detection engine oil temperature information and transmits for well accuse ware, when the engine shut down, engine speed information and the engine oil temperature information at this moment of well accuse ware record, well accuse ware control oil circuit switch closes simultaneously, separate each other between oil pan and the machine oil container one, thereby make the liquid level in the machine oil container one can not rise in the twinkling of an eye along with the oil pan together. When the next detection test, the engine heats up earlier, and the oil circuit switch is in the off-state, and the information when shutting down last time that record was in the well accuse ware is opened to the rotational speed that rotational speed sensor detected the engine and the machine oil temperature that temperature sensor detected the engine is unanimous, well accuse ware control oil circuit switch, and whole detection device begins to operate and detects to can guarantee to examine time measuring at every turn, the machine oil liquid level can remain stable unanimous, can further guarantee the accuracy that detects.

In the engine oil consumption detection device of the engine, the first engine oil container is further provided with a heating element capable of heating the engine oil in the first engine oil container, the first engine oil container is further internally provided with a second temperature sensor for detecting the temperature of the engine oil, the second temperature sensor is connected with the input end of the central controller, and the heating element is connected with the output end of the central controller. When the engine enters the next detection after being stopped, the oil circuit switch is in a closed state, the engine is heated first, the central controller controls the heating element to heat the engine oil in the engine oil container I synchronously, the temperature sensor II detects the engine oil temperature information in the engine oil container I in real time and feeds the information back to the central controller, and when the engine oil temperature information in the engine oil container I returned by the temperature sensor II is consistent with the engine oil temperature of the engine during the last stop recorded in the central controller, the central controller controls the heating element II to stop heating. Meanwhile, when the rotating speed sensor detects that the rotating speed of the engine and the information recorded in the central controller when the first temperature sensor detects that the engine oil temperature of the engine is consistent with the information recorded in the central controller when the engine is stopped last time, the central controller controls the opening and closing of the oil circuit, and the whole detection device starts to operate to detect, so that the oil level and the temperature in the oil pan can be kept stable and consistent with those in the first engine oil container when every detection is carried out, and the detection accuracy can be further ensured. The heating member may be a heating wire or a heating jacket.

In the above device for detecting engine oil consumption, the first oil container is made of a transparent material. The first engine oil container is made of transparent materials, and therefore engine oil level information can be observed conveniently in real time. Meanwhile, the arrangement position of the contact type liquid level sensor in the engine oil container I is convenient to adjust, so that the adjustment of the standard engine oil liquid level can be realized, and the detection device can be suitable for connection of oil pans of different models.

In the above device for detecting the engine oil consumption of the engine, the device further comprises a second engine oil container, a fourth connecting pipe for communicating with the bottom of the oil pan is arranged at the bottom of the second engine oil container, and a fifth connecting pipe for communicating with the crankcase of the engine is arranged at the top of the second engine oil container. The second oil container is connected with the oil pan through the fourth connecting pipe, namely the oil level in the second oil container is kept consistent with the oil pan. Because the engine shuts down the back, the machine oil reflux of each pipeline can lead to the liquid level to rise, through foretell setting, can effectively avoid the engine to shut down the back and cause the oil level to vibrate.

In the engine oil consumption detection device, a second non-contact liquid level sensor is further arranged in the second engine oil container, and the second non-contact liquid level sensor is connected with the input end of the central controller.

Because the engine stops the back, the machine oil reflux of each pipeline can lead to the liquid level to rise, and the engine stops the back at the cold state condition simultaneously, and the expend with heat and contract with cold effect of machine oil can lead to the decline of the change of liquid level again, if direct start detects under this condition, can lead to the data mutation that detects, and the accuracy is lower. Through the arrangement, when the engine operates again for detection, the rotating speed sensor detects the rotating speed of the engine in real time, the temperature sensor I detects the oil temperature of the engine in real time, the heating element heats the oil in the oil container I, the temperature sensor II detects the oil temperature in the oil container I in real time, the non-contact sensor I detects the oil level in the oil container I in real time, the non-contact sensor II detects the oil level in the oil container II in real time, until the rotating speed detected by the rotating speed sensor and the oil temperature detected by the temperature sensor I are consistent with the information recorded by the central controller during the last shutdown, and the central controller controls the oil circuit switch to be opened when the liquid level information detected by the non-contact sensor I is consistent with the liquid level information detected by the non-contact sensor II, the whole detection device starts to operate for detection, therefore, when each detection is carried out, the oil level and the temperature in the oil pan can be kept stable and consistent with those in the oil container, the problem that the data of the measuring system changes suddenly due to the fact that the engine is stopped or the engine oil is in a cold state is effectively solved, and the detection accuracy is further improved.

In the above engine oil consumption detection device, the second oil container is made of a transparent material. And the second engine oil container is made of transparent materials, so that the information of the engine oil liquid level can be observed in real time conveniently.

In the device for detecting the engine oil consumption of the engine, the central controller comprises a data acquisition unit, a control unit and a display screen, the contact type liquid level sensor, the non-contact type liquid level sensor I, the non-contact type liquid level sensor II, the rotating speed sensor, the temperature sensor I, the temperature sensor II and the weighing piece are all connected with the input end of the data acquisition unit, the output end of the data acquisition unit is connected with the input end of the control unit, the oil circuit switch, the heating piece and the oil pump are all connected with the output end of the control unit, and the data acquisition unit and the control unit are all connected with the display screen. The data acquisition unit is used for receiving information signals acquired by the contact type liquid level sensor, the non-contact type liquid level sensor I, the non-contact type liquid level sensor II, the rotating speed sensor, the temperature sensor I, the temperature sensor II and the weighing part and converting the information signals into data information to be fed back to the control unit, and the control unit performs comparison correction according to the fed back data information and sends control instructions to the corresponding oil circuit switch, the corresponding heating part and the corresponding oil pump, so that the consumption of engine oil can be detected in a full-automatic real-time mode. The central controller can adopt a commonly used vehicle-mounted ECU.

In the above engine oil consumption detection device, the weighing member includes a base and a force sensor disposed on the base, and the force sensor is connected to the data acquisition unit. The force sensor can detect the gravity change of the oil storage tank in real time and sends the detected signal to the central controller, so that the engine oil variation in the oil storage tank, namely the engine oil consumption of the engine, can be displayed in the central controller in real time.

Compared with the prior art, the engine oil consumption detection device has the following advantages:

1. the oil can be accurately supplemented in real time, oil pumping operation is not needed, and pollution of engine oil is avoided, so that the engine oil consumption of the engine under the thermal state condition can be accurately measured in real time, the engine oil consumption of the engine after long-time running and shutdown can be measured, and the workload of testers is reduced.

2. After the engine detection and maintenance are completed, fresh engine oil can be automatically supplemented to the oil pan by the device, and testers can completely avoid worrying about the problem of oil shortage of the oil pan in the long-time endurance test.

3. When can guarantee to detect at every turn, the engine oil liquid level and the temperature in the oil pan can be unanimous with the holding stability in the engine oil container one, and the effectual engine of having solved is shut down or under the engine oil cold state condition, and the accuracy that detects has further been improved to the problem of measurement system's data sudden change.

Drawings

Fig. 1 is a schematic configuration diagram of the engine oil consumption amount detection device of the present invention.

In the figure, 1, an oil storage tank; 2. weighing the parts; 2a, a force sensor; 2b, a base; 3. an oil pump; 4. a first engine oil container; 5. an oil pan; 6. a central controller; 6a, a display screen; 6b, a data acquisition unit; 6c, a control unit; 7. a first connecting pipe; 8. an oil circuit switch; 9. an engine crankcase; 10. a second connecting pipe; 11. a third connecting pipe; 12. a contact liquid level sensor; 13. a non-contact liquid level sensor I; 14. a first temperature sensor; 15. a rotational speed sensor; 16. a heating member; 17. a second temperature sensor; 18. a second engine oil container; 19. a fourth connecting pipe; 20. connecting a pipe V; 21. and a second non-contact liquid level sensor.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the engine oil consumption detecting device includes an oil storage tank 1, a weighing member 2, an oil pump 3, a first oil container 4, a central controller 6, a second oil container 18, a rotation speed sensor 15 for detecting the rotation speed of an engine, and a first temperature sensor 14 for detecting the temperature of engine oil. The rotational speed sensor 15 and the first temperature sensor 14 are both connected with the input end of the central controller 6.

The first engine oil container 4 is made of transparent materials, a first connecting pipe 7 used for being communicated with the bottom of the oil pan 5 is arranged at the bottom of the first engine oil container 4, an oil path switch 8 used for controlling the first connecting pipe 7 to be switched on and switched off is arranged on the first connecting pipe 7, and the oil path switch 8 is connected with the output end of the central controller 6. And the top of the oil container I4 is provided with a connecting pipe II 10 which is used for being communicated with an engine crankcase 9. The oil storage tank 1 is arranged on the weighing part 2, the oil storage tank 1 is connected with the engine oil container I4 through a connecting pipe III 11, and the engine oil pump 3 is arranged on the connecting pipe III 11. In this embodiment, the oil pump 3 is an electronic oil pump 3 capable of adjusting speed, so that speed adjustment can be realized, and the flow of oil injection can be adjusted.

Specifically, a contact type liquid level sensor 12 and a non-contact type liquid level sensor 13 are further arranged in the engine oil container 4, the contact type liquid level sensor 12 and the non-contact type liquid level sensor 13 are both connected with the input end of the central controller 6, and the engine oil pump 3 is connected with the output end of the central controller 6. The engine oil container 4 is further provided with a heating element 16 capable of heating the engine oil in the engine oil container 4, and the heating element 16 can be an electric heating wire, a heating jacket, an induction cooker and the like. And a second temperature sensor 17 for detecting the temperature of the engine oil is further arranged in the first engine oil container 4, the second temperature sensor 17 is connected with the input end of the central controller 6, and the heating element 16 is connected with the output end of the central controller 6.

The second oil container 18 is made of transparent materials, a fourth connecting pipe 19 used for being communicated with the bottom of the oil pan 5 is arranged at the bottom of the second oil container 18, and a fifth connecting pipe 20 used for being communicated with the engine crankcase 9 is arranged at the top of the second oil container 18. A second non-contact liquid level sensor 21 is further arranged in the second engine oil container 18, and the second non-contact liquid level sensor 21 is connected with the input end of the central controller 6.

Furthermore, the central controller 6 comprises a data acquisition unit 6b, a control unit 6c and a display screen 6a, wherein the contact type liquid level sensor 12, the first non-contact type liquid level sensor 13, the second non-contact type liquid level sensor 21, the rotating speed sensor 15, the first temperature sensor 14, the second temperature sensor 17 and the weighing part 2 are all connected with the input end of the data acquisition unit 6b, the output end of the data acquisition unit 6b is connected with the input end of the control unit 6c, the oil circuit switch 8, the heating part 16 and the oil pump 3 are all connected with the output end of the control unit 6c, and the data acquisition unit 6b and the control unit 6c are all connected with the display screen 6 a. The data acquisition unit 6b is used for receiving information signals acquired by the contact type liquid level sensor 12, the non-contact type liquid level sensor 13, the non-contact type liquid level sensor 21, the rotating speed sensor 15, the temperature sensor 14, the temperature sensor 17 and the weighing piece 2, converting the information signals into data information and feeding the data information back to the control unit 6c, and the control unit 6c compares and corrects the data information according to the feedback information and sends control instructions to the corresponding oil circuit switch 8, the heating piece 16 and the oil pump 3, so that the consumption of engine oil of the engine can be detected in a full-automatic real-time mode. In the present embodiment, the central controller 6 is a commonly used vehicle-mounted ECU. The weighing element 2 comprises a base 2b and a force sensor 2a arranged on the base 2b, the force sensor 2a being connected to a data acquisition unit 6 b.

When the detection device is used, the first connecting pipe 7 is connected with the bottom of the oil pan 5, the oil circuit switch 8 is opened, the second connecting pipe 10 is connected with the engine crankcase 9, the fourth connecting pipe 19 is connected with the bottom of the oil pan 5, the fifth connecting pipe 20 is connected with the engine crankcase 9, the air pressure and the liquid level in the first engine oil container 4, the second engine oil container 18 and the oil pan 5 are kept consistent, and at the moment, the engine oil liquid level in the first engine oil container 4 just touches the contact type liquid level sensor 12. When the engine runs, the contact type liquid level sensor 12, the non-contact type liquid level sensor I13 and the non-contact type liquid level sensor II 21 transmit detected information to the central controller 6 in real time, when the engine oil is consumed, the oil levels of the oil pan 5 and the engine oil container I4 synchronously descend, the oil level of the engine oil cannot touch the contact type liquid level sensor 12, the contact type liquid level sensor 12 does not detect the engine oil information and transmits a detection signal to the central controller 6, the non-contact type liquid level sensor 12 also transmits the detected specific liquid level information in the engine oil container I4 to the central controller 6, the central controller 6 transmits a control signal to the engine oil pump 3 after receiving the detection information transmitted by the contact type liquid level sensor 12, and the engine oil pump 3 is accurately controlled to inject a proper amount of engine oil into the engine oil container I4 according to the specific liquid level information transmitted by the non-contact type liquid level, therefore, real-time and accurate oil supplement is realized, oil pumping operation is not needed, and engine oil pollution is avoided. At this time, the change in the weight of the oil tank 1 weighed by the weighing device 2, which is the instantaneous oil consumption of the engine in this case, is displayed on the display screen 6a, and the detection accuracy is high.

Because the engine stops the back, the machine oil reflux of each pipeline can lead to the liquid level to rise, and the engine stops the back at the cold state condition simultaneously, and the expend with heat and contract with cold effect of machine oil can lead to the decline of the change of liquid level again, if direct start detects under this condition, can lead to the data mutation that detects, and the accuracy is lower. In the detection process of the detection device, the rotating speed sensor 15 detects the rotating speed information of the engine in real time and transmits the rotating speed information to the central controller 6 and displays and stores the rotating speed information in the display screen 6a, and the temperature sensor I14 detects the temperature information of the engine oil in real time and transmits the temperature information to the central controller 6 and displays and stores the temperature information in the display screen 6a, so that the detection device has a memory function. After a detection test is finished, the engine stops, the central control device 6 can record the engine speed information and the engine oil temperature information at the moment, meanwhile, the central control device 6 controls the oil circuit switch 8 to be closed, the oil pan 5 and the engine oil container I4 are mutually separated, and therefore after the engine stops, the liquid level of the engine oil in the engine oil container I4 cannot rise instantly along with the situation that the engine oil in each pipeline flows back to the oil pan 5.

When the engine is restarted for detection after being stopped, the oil circuit switch 8 is in a closed state, the rotating speed sensor 15 detects the rotating speed of the engine in real time, the temperature sensor I14 detects the oil temperature of the engine in real time, the heating element 16 heats the oil in the oil container I4, the temperature sensor II 17 detects the oil temperature in the oil container I4 in real time, the non-contact sensor I detects the oil level in the oil container I4 in real time, the non-contact sensor II detects the oil level in the oil container II 18 in real time until the rotating speed detected by the rotating speed sensor 15 and the oil temperature detected by the temperature sensor I14 are consistent with the information recorded by the central controller 6 during the last stop, and the liquid level information detected by the non-contact sensor I is consistent with the liquid level information detected by the non-contact sensor II, well accuse ware 6 control oil circuit switch 8 opens, and whole detection device begins to operate and detects to can guarantee at every turn when detecting, the machine oil liquid level and the temperature in the oil pan 5 can be consistent with the steady maintenance in the machine oil container 4, the effectual solution because under the engine shut down or the machine oil cold state condition, measurement system's the problem of data sudden change, further improved the accuracy that detects.

After the engine detection and maintenance are completed, fresh engine oil can be automatically supplemented to the oil pan 5 by the detection device, and testers can completely avoid worrying about the problem of oil shortage of the oil pan 5 in the long-time endurance test.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although more is used herein with 1, an oil storage tank; 2. weighing the parts; 2a, a force sensor; 2b, a base; 3. an oil pump; 4. a first engine oil container; 5. an oil pan; 6. a central controller; 6a, a display screen; 6b, a data acquisition unit; 6c, a control unit; 7. a first connecting pipe; 8. an oil circuit switch; 9. an engine crankcase; 10. a second connecting pipe; 11. a third connecting pipe; 12. a contact liquid level sensor; 13. a non-contact liquid level sensor I; 14. a first temperature sensor; 15. a rotational speed sensor; 16. a heating member; 17. a second temperature sensor; 18. a second engine oil container; 19. a fourth connecting pipe; 20. connecting a pipe V; 21. contactless level sensors, etc., but do not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (10)

1. An engine oil consumption detection device comprises an oil storage tank (1), a weighing part (2) and an oil pump (3), wherein the oil storage tank (1) is arranged on the weighing part (2), the detection device is characterized by further comprising a first engine oil container (4), wherein a first connecting pipe (7) used for being communicated with the bottom of the oil pan (5) is arranged at the bottom of the first engine oil container (4), an oil circuit switch (8) for controlling the connection and disconnection of the connecting pipe I (7) is arranged on the connecting pipe I (7), the top of the engine oil container I (4) is provided with a connecting pipe II (10) which is used for being communicated with an engine crankcase (9), the oil storage tank (1) is connected with the engine oil container I (4) through a connecting pipe III (11), the oil pump (3) is arranged on the connecting pipe III (11), and a contact type liquid level sensor (12) and a non-contact type liquid level sensor I (13) are further arranged in the oil container I (4).

2. The engine oil consumption detection device of claim 1, further comprising a central controller (6), wherein the contact type liquid level sensor (12) and the non-contact type liquid level sensor (13) are both connected with an input end of the central controller (6), and the oil pump (3) is connected with an output end of the central controller (6).

3. The engine oil consumption detection device according to claim 2, further comprising a rotation speed sensor (15) for detecting the rotation speed of the engine and a first temperature sensor (14) for detecting the temperature of the engine oil, wherein the rotation speed sensor (15) and the first temperature sensor (14) are both connected with the input end of the central controller (6), and the oil path switch (8) is connected with the output end of the central controller (6).

4. The engine oil consumption detection device according to claim 3, wherein the first oil container (4) is further provided with a heating element (16) capable of heating the engine oil in the first oil container (4), the first oil container (4) is further provided with a second temperature sensor (17) for detecting the temperature of the engine oil, the second temperature sensor (17) is connected with the input end of the central controller (6), and the heating element (16) is connected with the output end of the central controller (6).

5. The engine oil consumption detection device according to claim 1, 2, 3 or 4, wherein the first oil container (4) is made of a transparent material.

6. The engine oil consumption detection device according to claim 4, further comprising a second oil container (18), wherein a fourth connecting pipe (19) for communicating with the bottom of the oil pan (5) is arranged at the bottom of the second oil container (18), and a fifth connecting pipe (20) for communicating with the engine crankcase (9) is arranged at the top of the second oil container (18).

7. The engine oil consumption detection device of claim 6, wherein a second non-contact liquid level sensor (21) is further arranged in the second oil container (18), and the second non-contact liquid level sensor (21) is connected with the input end of the central controller (6).

8. The engine oil consumption detection device according to claim 6 or 7, wherein the second oil container (18) is made of a transparent material.

9. The engine oil consumption detection device according to claim 7, the central controller (6) comprises a data acquisition unit (6b), a control unit (6c) and a display screen (6a), the contact type liquid level sensor (12), the non-contact type liquid level sensor I (13), the non-contact type liquid level sensor II (21), the rotating speed sensor (15), the temperature sensor I (14), the temperature sensor II (17) and the weighing piece (2) are all connected with the input end of the data acquisition unit (6b), the output end of the data acquisition unit (6b) is connected with the input end of the control unit (6c), the oil circuit switch (8), the heating element (16) and the oil pump (3) are all connected with the output end of the control unit (6c), the data acquisition unit (6b) and the control unit (6c) are connected with the display screen (6 a).

10. The engine oil consumption detection device according to claim 9, wherein the weighing member (2) comprises a base (2b) and a force sensor (2a) disposed on the base (2b), the force sensor (2a) being connected to the data acquisition unit (6 b).

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