CN115199376A - Engine oil gas content measuring device and method - Google Patents
Engine oil gas content measuring device and method Download PDFInfo
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- CN115199376A CN115199376A CN202210988405.5A CN202210988405A CN115199376A CN 115199376 A CN115199376 A CN 115199376A CN 202210988405 A CN202210988405 A CN 202210988405A CN 115199376 A CN115199376 A CN 115199376A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/10—Indicating devices; Other safety devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2835—Specific substances contained in the oils or fuels
- G01N33/2841—Gas in oils, e.g. hydrogen in insulating oils
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Abstract
The application discloses machine oil gas content measuring device belongs to vehicle technical field. The engine oil gas content measuring device comprises a thermostat, a base, an oil pipeline, a quick joint, a measuring cylinder, a temperature sensor and a standing frame; the base is provided with a first channel, a second channel and a third channel which are communicated with each other; the oil conveying pipeline comprises an oil inlet pipeline and an oil discharge pipeline, two ends of the oil inlet pipeline are respectively communicated with the engine and the first channel, and two ends of the oil discharge pipeline are respectively communicated with the engine and the second channel; the quick connector comprises a first male connector and a female connector, the first male connector is communicated with the third channel, and the female connector is communicated with the measuring cylinder; the temperature sensor is used for measuring a first temperature of the engine oil in the measuring cylinder; the standing frame comprises a standing frame body and a second male connector, and the lower end of the standing through hole of the standing frame body is communicated with the second male connector. By means of the method and the device, the accuracy of the measured first volume and the first temperature of the engine oil is improved, and therefore the accuracy of the calculated air content of the engine oil is improved.
Description
Technical Field
The application relates to the technical field of vehicles, in particular to a device and a method for measuring gas content in engine oil.
Background
The performance of a lubricating system of an engine has an important influence on the abrasion of each friction pair of the engine, so that the reliability of the engine is influenced, the air content of engine oil in the engine is an important factor influencing the performance of the lubricating system, the quality of an oil film of the friction pair is influenced if the air content of the engine oil is too large, so that the lubricating effect is reduced, and the reduction of the lubricating effect can cause the abrasion of the engine and even damage to the engine. Therefore, in the engine development stage, the oil content of the engine oil in the engine in different states, for example, the oil content of the engine oil under the influence of centrifugal force, inertial force, vibration, and the like, is measured.
The general method for measuring the gas content of the engine oil is to directly extract the engine oil in the engine under different states, place the engine oil in a container, measure the current first volume and first temperature of the engine oil, stand the engine oil for a period of time to allow the gas dissolved in the engine oil to naturally separate out, record the second volume and second temperature of the engine oil after standing, and finally calculate the gas content of the engine oil based on the first volume, first temperature, second volume and second temperature.
However, during the process of taking oil out of the engine into the container, some of the gas in the oil has evolved, resulting in an inaccurate measured first volume of oil. And since the external environment temperature changes rapidly (for example, the difference between the morning temperature and the noon temperature is large), the engine oil is layered when standing still, and the measured second temperature of the engine oil is inaccurate. The first temperature and the first volume are both accurate, resulting in inaccuracy in the measured gas content of the oil.
Disclosure of Invention
The embodiment of the application provides a device and a method for measuring the gas content of engine oil, which can solve the technical problems existing in the related technology, and the technical scheme of the device and the method for measuring the gas content of the engine oil is as follows:
in a first aspect, an embodiment of the present application provides an apparatus for measuring a gas content in engine oil, where the apparatus for measuring a gas content in engine oil includes a thermostat, a base, an oil pipeline, a quick coupling, a measuring cylinder, a temperature sensor, and a static rack;
the base is fixed in the incubator and provided with a first channel, a second channel and a third channel, and a first end of the first channel, a first end of the second channel and a first end of the third channel are communicated with each other;
the oil conveying pipeline comprises an oil inlet pipeline and an oil discharge pipeline, two ends of the oil inlet pipeline are respectively communicated with a main oil gallery of the engine and a second end of the first channel, two ends of the oil discharge pipeline are respectively communicated with an oil pan of the engine and a second end of the second channel, the oil inlet pipeline is provided with a first valve, and the oil discharge pipeline is provided with a second valve;
the quick connector is a quick interface with two open-close ends, the quick connector comprises a first male connector and a female connector, the first male connector is communicated with the second end of the third channel, the female connector is communicated with the open end of the measuring cylinder, the first male connector can be connected with the female connector, when the first male connector is connected with the female connector, the second end of the third channel is communicated with the open end of the measuring cylinder, and when the first male connector is not connected with the female connector, the first male connector and the female connector are respectively sealed;
the temperature sensor is positioned in the constant temperature box and connected with the base, and the temperature sensor is used for measuring a first temperature of the engine oil in the measuring cylinder;
the standing frame is located in the thermostat, the standing frame comprises a standing frame body and a second male joint, the standing frame body is connected with the thermostat, the standing frame body is provided with a standing through hole, the axis of the standing through hole is parallel to a plumb line, an upper end opening of the standing through hole is formed, the lower end of the standing through hole is communicated with the second male joint, the second male joint can be connected with the female joint, the second male joint is connected with the female joint in a working mode, the standing through hole is communicated with the open end of the measuring cylinder, and the standing frame is used for supporting the measuring cylinder filled with engine oil to stand.
In one possible implementation, the oven has an oil inlet and an oil outlet;
the oil inlet pipe is located in the oil inlet hole, the oil discharge pipe is located in the oil discharge hole, the oil inlet pipe is close to the one end of the main oil duct of the engine and the oil discharge pipe is close to the one end of the oil pan of the engine is located outside the thermostat, the oil inlet pipe is close to the one end of the first channel and the oil discharge pipe is close to the one end of the second channel is located inside the thermostat.
In one possible implementation manner, the engine oil gas content measuring device further comprises an oil inlet hole sealing ring and an oil discharge hole sealing ring;
the oil inlet hole sealing ring is positioned between the inner side wall of the oil inlet hole and the outer side wall of the oil inlet pipeline and is connected with the constant temperature box;
the oil drain hole sealing ring is located between the inner side wall of the oil drain hole and the outer side wall of the oil drain pipeline, and is connected with the constant temperature box.
In a possible implementation manner, the first end of the first channel, the first end of the second channel, and the first end of the third channel are located inside the base, the second end of the first channel and the second end of the second channel are located at two opposite ends of the base, and the second end of the third channel is located at the top end of the base.
In a possible implementation, the bottom end of the base is connected to the incubator.
In one possible implementation, the measuring cylinder comprises a cylinder body, a piston and a pull rod;
the barrel body is provided with an opening end and a bottom end, the opening end is opposite to the bottom end, the opening end of the barrel body is communicated with the female joint, and the bottom end is provided with a pressure hole;
the piston is positioned inside the cylinder;
the pull rod is located in the pressure hole, one end of the pull rod is connected with the piston and located inside the cylinder, the other end of the pull rod is located outside the cylinder, and a gap is formed between the pull rod and the pressure hole.
In a possible implementation manner, the detection end of the temperature sensor is located inside the first channel, or inside the second channel, or inside the third channel.
In one possible implementation manner, the engine oil gas content measuring device further comprises a first indicator light and a second indicator light;
when the first valve is opened, the first indicator light is turned on, and when the first valve is closed, the first indicator light is turned off;
when the second valve is opened, the second indicator light is turned on, and when the second valve is closed, the second indicator light is turned off.
In a second aspect, an embodiment of the present application provides an engine oil air content measuring method, which is applied to any one of the engine oil air content measuring devices described above;
the method comprises the following steps:
controlling the temperature of the thermostat to be at a preset temperature, and connecting the first male connector with the female connector;
controlling the first valve and the second valve to be opened;
controlling the engine to start, controlling the second valve to close when the starting time of the engine reaches a first preset time, controlling the first valve to close when the measuring cylinder is filled with the engine oil, and recording a first volume of the engine oil in the measuring cylinder and a first temperature of the temperature sensor;
separating the first male connector from the female connector, connecting the female connector with the second male connector, standing the measuring cylinder, and recording a second volume and a second temperature of the engine oil in the measuring cylinder when the standing time reaches a second preset time;
calculating a gas content of the oil based on the first volume, the first temperature, the second volume, and the second temperature.
The technical scheme provided by the embodiment of the application at least comprises the following beneficial effects:
the embodiment of the application provides a machine oil gas content measuring device, and the device includes thermostated container, base, oil pipeline, quick-operation joint, graduated flask, temperature sensor and rest frame.
The base is provided with a first channel, a second channel and a third channel, the oil conveying pipeline comprises an oil inlet pipeline and an oil discharge pipeline, two ends of the oil inlet pipeline are respectively communicated with a main oil duct of the engine and a second end of the first channel, two ends of the oil discharge pipeline are respectively communicated with an oil pan of the engine and a second end of the second channel, and a second end of the third channel is communicated with an opening end of the measuring cylinder.
And the constant of the external temperature of the engine oil during standing is ensured by the arrangement of the thermostat, and the influence of the external temperature change on the engine oil during standing is avoided, so that the accuracy of the measured second temperature of the engine oil after standing is improved, and the accuracy of the calculated gas content of the engine oil is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an oil gas content measuring device according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a rest stand and a measuring cylinder according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a method for measuring gas content in oil according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a measuring cylinder according to an embodiment of the present disclosure.
Description of the figures
1. A thermostat;
2. a base; 21. a first channel; 22. a second channel; 23. a third channel;
3. an oil pipeline; 31. an oil inlet pipeline; 32. an oil discharge pipe; 311. a first valve; 321. a second valve;
4. a quick coupling; 41. a first male connector; 42. a female joint;
5. a measuring cylinder; 51. a cylinder body; 52. a piston; 53. a pull rod; 511. an open end; 512. a bottom end;
5121. a pressure port;
6. a temperature sensor;
7. a stationary frame; 71. a standing frame body; 72. a second male connector; 711. standing the through hole;
10. an engine;
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, the following detailed description of the embodiments of the present application will be made with reference to the accompanying drawings.
The embodiment of the application provides a machine oil gas content measuring device, as shown in fig. 1, the machine oil gas content measuring device comprises a thermostat 1, a base 2, an oil pipeline 3, a quick coupling 4, a measuring cylinder 5, a temperature sensor 6 and a standing frame 7.
The above components are described below:
constant temperature cabinet 1
The thermostat 1 has a temperature control system, and can control the temperature inside the thermostat 1 according to a set preset temperature, so that the temperature is constant at the preset temperature.
The processing method of the temperature control system can be as follows: the temperature in the thermostat 1 is periodically detected, when the temperature in the thermostat 1 is greater than a preset temperature and a temperature difference value between the two is greater than or equal to a difference threshold value, the thermostat 1 is heated until the temperature in the thermostat 1 is equal to the preset temperature, and when the temperature in the thermostat 1 is less than the preset temperature and the temperature difference value between the two is greater than or equal to the difference threshold value, the thermostat 1 is cooled until the temperature in the thermostat 1 is equal to the preset temperature, and the thermostat is stopped until the temperature in the thermostat 1 is equal to the preset temperature, so that the temperature in the thermostat 1 is always in a constant state.
Of course, the processing method of the temperature control system in the oven 1 may be other reasonable methods, and this is not limited in the embodiment of the present application.
As shown in fig. 1, base 2 is fixed in oven 1, and the shape of base 2 may be any reasonable shape, for example, it may be cylindrical, prismatic, etc., and this is not limited in the embodiments of the present application.
The base 2 is provided with a first channel 21, a second channel 22 and a third channel 23, the first channel 21, the second channel 22 and the third channel 23 are respectively provided with a first end and a second end which are opposite, and the first end of the first channel 21, the first end of the second channel 22 and the first end of the third channel 23 are mutually communicated.
In one possible implementation, the positions of the first, second and third channels 21, 22, 23 may be as follows: the first end of the first channel 21, the first end of the second channel 22, and the first end of the third channel 23 may all be located inside the base 2, the second end of the first channel 21, the second end of the second channel 22, and the second end of the third channel are located on the outer side surface of the base 2, the second end of the first channel 21 and the second end of the second channel 22 may all be located at opposite ends of the side portion of the base 2, and the second end of the third channel 23 may be located at the top end of the base 2. Because the open end of the measuring cylinder 5 is communicated with the second end of the third channel 23, the second end of the third channel 23 is arranged at the top end of the base 2, so that after the measuring cylinder 5 is installed, the base 2 can support the measuring cylinder 5 to a certain extent, and the stability of the measuring device for the gas content of the engine oil is improved.
In this case, the fixing position between base 2 and oven 1 may be: the bottom end of the base 2 is connected with the incubator 1. Of course, the position and manner of connecting the base 2 to the oven 1 may be any reasonable position and manner, and the embodiment of the present application is not limited thereto.
The oil delivery pipe 3 is used to deliver oil between the measuring cylinder 5 and the engine 10.
As shown in fig. 1, the oil delivery pipe 3 includes an oil inlet pipe 31 for delivering oil from the engine 10 to the measuring cylinder 5, and an oil outlet pipe 32 for delivering excess oil from the position of the measuring cylinder 5 back to the engine 10.
The two ends of the oil inlet pipe 31 are respectively communicated with the main oil gallery of the engine 10 and the second end of the first passage 21, so that the oil inlet pipe 31 can convey the engine oil in the engine 10 to the inside of the base 2 through the main oil gallery, and the two ends of the oil outlet pipe 32 are respectively communicated with the oil pan of the engine 10 and the second end of the second passage 22, so that the oil outlet pipe 32 can convey the redundant engine oil in the base 2 back to the oil pan of the engine 10 through the second end of the second passage 22. The oil inlet pipe 31 and the oil discharge pipe 32 form a closed-loop piping between the inside of the base 2 and the engine 10.
The second end of the third channel 23 of the base 2 is communicated with the open end of the measuring cylinder 5, so that the engine oil conveyed to the interior of the base 2 by the oil inlet pipeline 31 can be conveyed to the measuring cylinder 5 through the third channel 23, the closed loop can reduce the contact between the engine oil and the outside air as much as possible in the engine oil conveying process, the precipitation volume of gas in the engine oil is reduced in the engine oil conveying process, and the accuracy of the first volume of the engine oil (the volume of the engine oil in the measuring cylinder 5 when the engine oil just fills the measuring cylinder 5) is improved.
The oil inlet pipe 31 is provided with a first valve 311, and the oil outlet pipe 32 is provided with a second valve 321, so that the opening and closing of the oil inlet pipe 31 can be controlled by the first valve 311, and the opening and closing of the oil outlet pipe 32 can be controlled by the second valve 321.
In a possible implementation manner, both the first valve 311 and the second valve 321 may be solenoid valves, or manual valves, which is not limited in the embodiments of the present application.
In one possible implementation, since oil delivery pipe 3 is located in thermostat 1 and needs to communicate with engine 10 outside thermostat 1, the structure of the engine oil air content measuring device may be configured as follows:
the oven 1 has an oil inlet hole and an oil discharge hole. The oil inlet pipe 31 is located in the oil inlet hole, the oil discharge pipe 32 is located in the oil discharge hole, namely, the oil inlet pipe 31 penetrates through the oil inlet hole, and the oil discharge pipe 32 penetrates through the oil discharge hole.
One end of the oil feed pipe 31 close to the main oil gallery of the engine 10 and one end of the oil discharge pipe 32 close to the oil pan of the engine 10 are both located outside the oven 1, and one end of the oil feed pipe 31 close to the first passage 21 and one end of the oil discharge pipe 32 close to the second passage 22 are both located inside the oven 1.
Further, in order to improve the stability of the temperature in the incubator 1, the following settings may be made:
the engine oil gas content measuring device can comprise an oil inlet hole sealing ring and an oil discharge hole sealing ring. The oil inlet sealing ring is located between the inner side wall of the oil inlet and the outer side wall of the oil inlet pipeline 31 and is connected with the thermostat 1. The oil drain hole sealing ring is located between the inner side wall of the oil drain hole and the outer side wall of the oil drain pipeline 32, and is connected with the thermostat 1.
Quick coupling 4
The quick coupling 4 is a two-end opening and closing type quick coupling, and includes a first male coupling 41 and a female coupling 42, the first male coupling 41 and the female coupling 42 can be connected, when the first male coupling 41 and the female coupling 42 are connected, the first male coupling 41 and the female coupling 42 are communicated, and when the first male coupling 41 and the female coupling 42 are not connected, the connected ends of the first male coupling 41 and the female coupling 42 are sealed by themselves. The specific structure of the quick coupling 4 may be any structure that satisfies the above functions, and the embodiment of the present application is not limited to this.
In the embodiment of the present application, as shown in fig. 1, the first male connector 41 is in communication with the second end of the third channel 23, and the female connector 42 is in communication with the open end of the measuring cylinder 5, so that when the first male connector 41 is connected with the female connector 42, the third channel 23 can be in communication with the measuring cylinder 5, in this case, the engine oil in the third channel 23 can be delivered to the measuring cylinder 5, and when the measuring cylinder 5 is filled with the engine oil, the first male connector 41 can be separated from the female connector 42, and at this time, the first male connector 41 and the female connector 42 are sealed, and the female connector 42 is sealed, so that the engine oil in the measuring cylinder 5 can be sealed in the measuring cylinder 5.
Measuring cylinder 5
The measuring cylinder 5 is provided with volume scales on the outer surface, so that a worker can conveniently check the volume of the engine oil in the measuring cylinder 5, namely the first volume and the second volume of the engine oil (the volume of the engine oil after standing).
The open end of the measuring cylinder 5 is communicated with the second end of the third passage 23, and the engine oil is transmitted from the main oil gallery of the engine 10 to the inside of the base 2 through the oil inlet pipe 31 and then transmitted from the inside of the base 2 to the measuring cylinder 5 through the third passage 23.
Temperature sensor 6
As shown in fig. 1, a temperature sensor 6 is located in the oven 1 and is connected to the base 2, the temperature sensor 6 being adapted to measure a first temperature of the oil in the measuring cylinder 5.
The base 2 can be provided with a mounting hole which is communicated with the inside of the base 2, the temperature sensor 6 can be mounted in the mounting hole, the detection end of the temperature sensor 6 is positioned in the first channel 21, the second channel 22 or the third channel 23, because the engine oil in the measuring cylinder 5 is conveyed through the first channel 21, the second channel 22 and the third channel 23, and the measuring cylinder 5 is closer to the channels, the detection end of the temperature sensor 6 is arranged in any channel for detection, and the detected temperature has extremely small difference or even is the same as the temperature in the measuring cylinder 5.
As shown in fig. 2, the stationary stand 7 includes a stationary stand body 71 and a second male joint 72.
The standing frame body 71 is connected with the thermostat 1, a standing through hole 711 is formed in the standing frame body 71, and the axis of the standing through hole 711 is parallel to a plumb line. The upper end of the standing through hole 711 is open, and the lower end is communicated with the second male connector 72.
The second male connector 72 can be connected to the female connector 42, and when the second male connector 72 is connected to the female connector 42, the second male connector 72 communicates with the female connector 42, that is, the standing through hole 711 communicates with the open end of the measuring cylinder 5, and at this time, the engine oil in the measuring cylinder 5 contacts with the air outside the measuring cylinder 5, and the engine oil can be released to be allowed to stand.
The embodiment of the application provides a method for measuring the gas content of engine oil, which is applied to any one of the devices for measuring the gas content of engine oil, and as shown in fig. 3, the method comprises the following steps:
301. the temperature of the oven 1 is controlled to a preset temperature, and the first male connector 41 is connected to the female connector 42.
The staff can set up according to experience and preset the temperature for preset the temperature and be less than the temperature of the interior machine oil of engine 10, and both have certain temperature difference, and usually, the interior machine oil temperature of engine 10 is higher, and at this moment, can set up preset the temperature to 10 ℃, etc. this application embodiment does not limit to this.
In practice, the temperature inside oven 1 can be controlled at a preset temperature. The first male connector 41 is connected with the female connector 42 so that the third passage 23 communicates with the inside of the measuring cylinder 5. The oil delivery pipe 3 is installed, that is, two ends of the oil inlet pipe 31 are respectively communicated with the main oil gallery of the engine 10 and the second end of the first passage 21, two ends of the oil discharge pipe 32 are respectively communicated with the oil pan of the engine 10 and the second end of the second passage 22, and the first valve 311 and the second valve 321 are closed.
It is understood that the above various processes are not in sequence, and can be processed according to actual situations.
302. The first valve 311 and the second valve 321 are controlled to be opened.
303. Controlling the engine 10 to start, controlling the second valve 321 to close when the starting time of the engine 10 reaches a first preset time, controlling the first valve 311 to close when the measuring cylinder 5 is filled with the engine oil, and recording a first volume of the engine oil in the measuring cylinder 5 and a first temperature of the temperature sensor 6.
In implementation, after the first valve 311 and the second valve 321 are opened, the engine 10 may be controlled to start, that is, the oil pump in the engine 10 is controlled to start, oil in the engine 10 is transported from the main oil gallery, a part of the oil is transported to each device needing lubrication in the engine 10, another part of the oil is transported to the oil inlet pipe 31, and then is transported to the base 2 and the measuring cylinder 5 by the oil inlet pipe 31, and then is transported back to the oil pan of the engine 10 by the oil discharge pipe 32, so as to form a closed loop.
When the starting time of the engine 10 reaches the first preset time, the engine oil circulates in the closed loop for a plurality of times, at this time, the engine oil is added to the oil pipeline 3, the base 2 and the measuring cylinder 5, so that the temperature of the engine oil is the same as the temperature of the engine oil, at this time, the second valve 321 can be closed, the oil discharge pipeline 32 is blocked, and the engine oil flows into the measuring cylinder 5 under the action of pressure to fill the measuring cylinder 5. When the measuring cylinder 5 is filled, the oil in the main oil gallery will not flow into the oil inlet pipe 31, but will flow to all parts of the engine 10 that need to be lubricated.
When the operator sees that the measuring cylinder 5 is filled with the engine oil, the operator can control the first valve 311 to close, and at this time, the engine oil is taken out from the engine 10 to the measuring cylinder 5, and at this time, the operator can start reading, and the current reading of the temperature sensor 6 is recorded, namely, the first temperature.
Because the volume of the engine oil in the measuring cylinder 5 changes to some extent when the engine oil flows, the volume of the engine oil in the measuring cylinder 5 can be read after the second valve 321 is closed, namely the first volume, and at the moment, the read first volume is accurate. It will be appreciated that since oil may bubble in the measuring cylinder 5 during delivery, the maximum volume of bubble-containing oil in the measuring cylinder 5 is read directly when the first volume is read.
304. The first male connector 41 and the female connector 42 are separated, the female connector 42 is connected with the second male connector 72, the measuring cylinder 5 is placed still, and when the standing time reaches a second preset time length, a second volume and a second temperature of the engine oil in the measuring cylinder 5 are recorded.
In practice, after the measuring cylinder 5 is filled, the first male connector 41 and the female connector 42 can be separated, and at this time, the two connectors are sealed respectively, the first male connector 41 is sealed to prevent the engine oil in the base 2 from flowing out and being wasted, and can be recycled, and the female connector 42 is sealed to seal the engine oil in the measuring cylinder 5, so that the subsequent measuring cylinder 5 can be moved conveniently.
Then, the female connector 42 is connected to the second male connector 72 of the stationary frame 7, so that the measuring cylinder 5 is communicated with the lower end of the stationary through hole 711, and thus, the engine oil in the measuring cylinder 5 can contact with the outside air through the opening at the upper end of the stationary through hole 711, and the engine oil can separate out gas.
When the standing time reaches a second preset time, the machine oil in the measuring cylinder 5 is completely stood, and the worker can read a second volume of the machine oil in the measuring cylinder 5 at the moment.
The second preset time period may be set according to a requirement, for example, may be 5 hours, and the like, which is not limited in this embodiment of the application.
In a possible implementation, if the standing time is sufficient, since the temperature inside the oven 1 is always constant at the preset temperature, the temperature of the oil in the standing measuring cylinder 5 is also equal thereto under the influence of the temperature inside the oven 1, so that the second temperature of the oil in the standing measuring cylinder 5 is equal to the preset temperature. Or, the staff can use temperature sensor to detect the temperature of the machine oil in the graduated cylinder 5 after standing again to obtain the second temperature of machine oil, above two kinds of modes all can, and this application embodiment does not limit this.
305. The air content of the oil is calculated based on the first volume, the first temperature, the second volume, and the second temperature.
In one possible implementation, the method of calculating the gas content of the oil from the first volume, the first temperature, the second volume and the second temperature may be as follows:
the calculation is performed by the following formulas (1) to (5):
Aeration[％]＝(V refAir /V refOil )×100％ (1)
V refAir ＝V oAir ×(T ref /T o ) (2)
V refOil ＝V oOi1 [1+β(T ref -T o )] (3)
V oOil ＝V eoil [1+β(T o -T e )] (4)
V oAir ＝V oMix -V oOil (5)
wherein the adsorption [% ]]Is the gas content of the engine oil, V oMix Is the first volume (containing bubbles), T o Is a first temperature, V eoil Is the second volume, T e Is the second temperature, beta is a preset value (which may be 0.0007 (1/K)), V oOil Is the maximum oil volume, T ref Is the reference temperature (which may be 293 (K)), V oAir Is the maximum gas volume, V refOil Is to correct the oil volume, V refAir Is the correct air volume. The unit of the volume can be mL, and the unit of the temperature can be K.
The gas content of the engine oil can be calculated through the formula. Of course, other methods are also possible, and the embodiment of the present application is not limited thereto.
In the process, a closed-loop pipeline is formed by the base 2 and the oil pipeline 3, so that the contact between the engine oil and the outside air is reduced, and the volume of gas precipitated in the process of taking the engine oil out of the engine 10 is reduced, so that the accuracy of the measured first volume of the engine oil which is just taken out is improved, and the accuracy of the calculated gas content of the engine oil is improved.
Moreover, the constant external temperature of the engine oil during standing is ensured by the arrangement of the thermostat 1, and the engine oil during standing is prevented from being influenced by the change of the external temperature, so that the accuracy of the measured second temperature of the engine oil after standing is improved, and the accuracy of the calculated gas content of the engine oil is improved.
In a possible implementation manner, in order to improve the operation convenience of the engine oil gas content measuring device, the following setting may be further performed:
the measuring cylinder 5 may comprise a cylinder body 51, a piston 52 and a pull rod 53.
The cylinder 51 has an open end 511 and a bottom end 512, the open end 511 is opposite to the bottom end 512, wherein the open end 511 is the open end of the measuring cylinder 5. The open end 511 of the cylinder 51 communicates with the female connector 42, and the bottom end 512 has a pressure hole 5121.
The piston 52 is located inside the cylinder 51. The tension rod 53 is positioned within the pressure hole 5121, i.e., the tension rod 53 passes through the pressure hole 5121. One end of the pull rod 53 is connected to the piston 52, and may be connected to one end of the piston 52 near the bottom end, the other end of the pull rod 53 is located outside the cylinder 51, and a gap is formed between the pull rod 53 and the pressure hole 5121.
With the structure of the measuring cylinder 5 described above, in the engine oil air content measuring method, before step 302, the other end of the pull rod 53, that is, the end located outside the cylinder 51, may be pulled, and by pulling the pull rod 53, the piston 52 is pulled to the bottom end of the cylinder 51, so that the air pressure inside the measuring cylinder 5 and the base 2 is reduced, as shown in fig. 4, and thus, after the first valve 311 and the second valve 321 are opened in step 302, the engine oil in the main oil gallery of the engine 10 is more easily transferred into the oil inlet pipe 31 by the pressure difference.
In a possible implementation manner, in order to make the flow of the oil content measuring device more clearly seen by the operator, the following settings may be further performed:
the oil gas content measuring device may further include a first indicator light and a second indicator light.
When the first valve 311 is opened, the first indicator light is turned on, and when the first valve 311 is closed, the first indicator light is turned off. The second indicator light is turned on when the second valve 321 is opened, and turned off when the second valve 321 is closed. In this way, the staff can clearly see the current step according to whether the first indicator light and the second indicator light are turned on.
The technical scheme provided by the embodiment of the application at least comprises the following beneficial effects:
the embodiment of the application provides a machine oil gas content measuring device, and the device includes thermostated container 1, base 2, oil pipeline 3, quick-operation joint 4, graduated flask 5, temperature sensor 6 and the frame 7 that stews.
The base 2 is provided with a first channel 21, a second channel 22 and a third channel 23, the oil conveying pipeline 3 comprises an oil inlet pipeline 31 and an oil discharge pipeline 32, two ends of the oil inlet pipeline 31 are respectively communicated with a main oil channel of the engine 10 and a second end of the first channel 21, two ends of the oil discharge pipeline 32 are respectively communicated with an oil pan of the engine 10 and a second end of the second channel 22, and a second end of the third channel 23 is communicated with an opening end of the measuring cylinder 5, so that a closed-loop pipeline is formed by the base 2 and the oil conveying pipeline 3, contact between engine oil and outside air is reduced, the volume of gas precipitated in the process of taking out the engine oil from the engine 10 is reduced, the accuracy of the measured first volume of the engine oil which is just taken out is improved, and the accuracy of the calculated gas content of the engine oil is improved.
Moreover, the constant external temperature of the engine oil during standing is ensured by the arrangement of the thermostat 1, and the engine oil during standing is prevented from being influenced by the change of the external temperature, so that the accuracy of the measured second temperature of the engine oil after standing is improved, and the accuracy of the calculated gas content of the engine oil is improved.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. The measuring device for the gas content of the engine oil is characterized by comprising a thermostat (1), a base (2), an oil pipeline (3), a quick coupling (4), a measuring cylinder (5), a temperature sensor (6) and a standing frame (7);
the base (2) is fixed in the incubator (1), the base (2) is provided with a first channel (21), a second channel (22) and a third channel (23), and a first end of the first channel (21), a first end of the second channel (22) and a first end of the third channel (23) are communicated with each other;
the oil conveying pipeline (3) comprises an oil inlet pipeline (31) and an oil outlet pipeline (32), two ends of the oil inlet pipeline (31) are respectively communicated with a main oil gallery of the engine (10) and a second end of the first channel (21), two ends of the oil outlet pipeline (32) are respectively communicated with an oil pan of the engine (10) and a second end of the second channel (22), a first valve (311) is arranged on the oil inlet pipeline (31), and a second valve (321) is arranged on the oil outlet pipeline (32);
the quick connector (4) is a two-end opening and closing type quick connector, the quick connector (4) comprises a first male connector (41) and a female connector (42), the first male connector (41) is communicated with the second end of the third channel (23), the female connector (42) is communicated with the open end of the measuring cylinder (5), the first male connector (41) can be connected with the female connector (42), when the first male connector (41) is connected with the female connector (42), the second end of the third channel (23) is communicated with the open end of the measuring cylinder (5), and when the first male connector (41) is not connected with the female connector (42), the first male connector (41) and the female connector (42) are respectively sealed;
the temperature sensor (6) is positioned in the thermostat (1) and connected with the base (2), and the temperature sensor (6) is used for measuring a first temperature of the engine oil in the measuring cylinder (5);
the utility model discloses a thermostat, including standing frame (7), standing frame (7) and standing frame body (71), stand frame body (71) and second male joint (72), standing frame body (71) with thermostat (1) is connected, standing frame body (71) has through-hole (711) of standing, the axis and the plumb line of through-hole (711) of standing are parallel, the upper end opening of through-hole (711) of standing, the lower extreme of through-hole (711) of standing with second male joint (72) intercommunication, second male joint (72) can with female joint (42) are connected, work as second male joint (72) with female joint (42) are connected when, through-hole (711) of standing with the open end intercommunication of graduated flask (5), standing frame (7) are used for supporting graduated flask (5) that are full of machine oil and are stood.
2. The engine oil air content measuring device according to claim 1, wherein the thermostat (1) has an oil inlet hole and an oil discharge hole;
oil inlet pipe way (31) are located in the oil feed hole, oil discharge pipe way (32) are located in the oil discharge hole, being close to of oil inlet pipe way (31) the one end of the main oil gallery of engine (10) with being close to of oil discharge pipe way (32) the one end of the oil pan of engine (10) all is located thermostated container (1) outside, being close to of oil inlet pipe way (31) the one end of first passageway (21) with being close to of oil discharge pipe way (32) the one end of second passageway (22) all is located inside thermostated container (1).
3. The engine oil air content measuring device according to claim 2, further comprising an oil inlet seal ring and an oil discharge seal ring;
the oil inlet hole sealing ring is positioned between the inner side wall of the oil inlet hole and the outer side wall of the oil inlet pipeline (31) and is connected with the thermostat (1);
the oil drain hole sealing washer is located the inside wall in oil drain hole with between the lateral wall of oil drain pipe way (32), and with thermostated container (1) is connected.
4. The engine oil air content measuring device according to claim 1, wherein a first end of the first passage (21), a first end of the second passage (22), and a first end of the third passage (23) are located inside a base (2), a second end of the first passage (21) and a second end of the second passage (22) are located at opposite ends of the base (2), and a second end of the third passage (23) is located at a top end of the base (2).
5. The engine oil air content measuring device according to claim 4, wherein a bottom end of the base (2) is connected to the oven (1).
6. The engine oil air content measuring device according to claim 1, wherein the measuring cylinder (5) comprises a cylinder body (51), a piston (52) and a pull rod (53);
the cylinder (51) is provided with an opening end (511) and a bottom end (512), the opening end (511) is opposite to the bottom end (512), the opening end (511) of the cylinder (51) is communicated with the female joint (42), and the bottom end (512) is provided with a pressure hole (5121);
the piston (52) is positioned inside the cylinder (51);
the pull rod (53) is located in the pressure hole (5121), one end of the pull rod (53) is connected with the piston (52) and located inside the cylinder body (51), the other end of the pull rod (53) is located outside the cylinder body (51), and a gap is formed between the pull rod (53) and the pressure hole (5121).
7. The engine oil air content measuring device according to claim 1, wherein a detection end of the temperature sensor (6) is located inside the first passage (21), or inside the second passage (22), or inside the third passage (23).
8. The engine oil air content measuring device according to claim 1, further comprising a first indicator light and a second indicator light;
the first indicator light is turned on when the first valve (311) is opened, and the first indicator light is turned off when the first valve (311) is closed;
when the second valve (321) is opened, the second indicator light is turned on, and when the second valve (321) is closed, the second indicator light is turned off.
9. The engine oil air content measuring device according to claim 1, wherein the first valve (311) and the second valve (321) are both solenoid valves.
10. An engine oil air content measuring method applied to an engine oil air content measuring apparatus according to any one of claims 1 to 9;
the method comprises the following steps:
controlling the temperature of the incubator (1) to be at a preset temperature, and connecting the first male connector (41) with the female connector (42);
controlling the first valve (311) and the second valve (321) to open;
controlling the engine (10) to start, controlling the second valve (321) to close when the starting time of the engine (10) reaches a first preset time, controlling the first valve (311) to close when the measuring cylinder (5) is filled with the engine oil, and recording a first volume of the engine oil in the measuring cylinder (5) and a first temperature of the temperature sensor (6);
separating the first male connector (41) from the female connector (42), connecting the female connector (42) with the second male connector (72), standing the measuring cylinder (5), and recording a second volume and a second temperature of the engine oil in the measuring cylinder (5) when the standing time reaches a second preset time length;
calculating a gas content of the oil based on the first volume, the first temperature, the second volume, and the second temperature.
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| CN202210988405.5A CN115199376B (en) | 2022-08-17 | 2022-08-17 | Engine oil gas content measuring device and method |
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| CN115199376B (en) | 2024-02-02 |
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