CN114856753A - Engine oil replacement precision control device - Google Patents
Engine oil replacement precision control device Download PDFInfo
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- CN114856753A CN114856753A CN202210423179.6A CN202210423179A CN114856753A CN 114856753 A CN114856753 A CN 114856753A CN 202210423179 A CN202210423179 A CN 202210423179A CN 114856753 A CN114856753 A CN 114856753A
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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
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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
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
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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
- F01M11/04—Filling or draining lubricant of or from machines or engines
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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
- F01M11/04—Filling or draining lubricant of or from machines or engines
- F01M11/0408—Sump drainage devices, e.g. valves, plugs
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating or supervising devices
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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
- F01M2011/0095—Supplementary oil tank
Abstract
The invention provides an engine oil replacement precision control device of an engine, which comprises a new oil storage system, a waste oil storage system, an engine oil pump, a first electric ball valve and a detection system. The new oil storage system is communicated with an oil inlet of the engine; the waste oil storage system is communicated with an oil outlet of the engine; the oil pump comprises an oil pump oil outlet end and an oil pump oil inlet end, the oil pump oil outlet end is communicated with the oil inlet, and the oil pump oil inlet end is communicated with the oil outlet through two oil pipes so as to respectively form a first circulation loop and a second circulation loop on the total circulation loop; the first electric ball valve is arranged on the main circulation loop; the oil inlet end of the detection system is communicated with the second circulation loop, and the oil outlet end of the detection system is communicated with the waste oil storage system, so that the physical and chemical parameters of the engine oil in the engine can be detected. The engine oil replacement precision control device effectively controls the replacement process of the engine oil in the fuel economy verification test of the engine oil, and improves the replacement precision of the engine oil.
Description
Technical Field
The invention relates to the technical field of automobile engines, in particular to an engine oil replacement precision control device.
Background
The engine is composed of a large number of parts which move relatively, such as pistons, crankshafts, connecting rods and the like, the friction pairs are high in movement speed and temperature, and under the severe working conditions, engine oil can protect engine parts and components to enable the parts and components to work normally. With the stricter national emission and oil consumption regulations, each large OEM puts forward higher energy-saving requirements on oil products, when fuel economy comparison tests are carried out on different engine oils, in order to control the uniqueness of variables, comparison tests of different test oil samples are often required to be carried out on the same engine of the same vehicle, and the accuracy of engine oil replacement in the test process has great influence on the test result.
At present, the most common oil drainage method in oil replacement for various automobile manufacturers is gravity oil drainage, because engine oil has certain viscosity, residual oil in an oil pan cannot be completely drained by means of gravity, the residual oil and new engine oil can be mixed to accelerate the deterioration of the new oil, and the influence of the new oil on the fuel economy of a finished automobile cannot be accurately judged. In order to avoid the problem of residual oil caused by the gravity oil drainage method, a tester often adopts a method of flushing the engine with new oil for multiple times to drain the residual oil as far as possible, so that engine oil is wasted, whether old oil is drained completely cannot be accurately judged, and oil drainage bolts for oil drainage of an oil pan are required to be frequently disassembled and assembled, so that oil leakage and oil seepage are easy to occur.
Disclosure of Invention
The invention aims to provide an engine oil replacement precision control device, which effectively controls the replacement process of engine oil in a fuel economy verification test of the engine oil and improves the replacement precision of the engine oil by respectively arranging a first circulation loop for cooling and a second circulation loop for detecting between the oil inlet end of an engine oil pump and the oil outlet of an engine.
In order to realize the purpose of the invention, the invention adopts the following technical scheme:
according to one aspect of the present invention, an engine oil replacement accuracy control apparatus is provided. The engine oil replacement precision control device comprises a new oil storage system, a waste oil storage system, an engine oil pump, a first electric ball valve and a detection system. The new oil storage system is communicated with an oil inlet of the engine; the waste oil storage system is communicated with an oil outlet of the engine; the oil pump comprises an oil pump oil outlet end and an oil pump oil inlet end, the oil pump oil outlet end is communicated with the oil inlet, and the oil pump oil inlet end is communicated with the oil outlet through two oil pipes so as to form a first circulation loop for cooling and a second circulation loop for detecting physical and chemical parameters of the oil on the total circulation loop in parallel; the first electric ball valve is arranged on the main circulation loop; and the oil detection end of the detection system is communicated with the second circulation loop, and the oil detection end of the detection system is communicated with the waste oil storage system so as to detect the physical and chemical parameters of the engine oil in the engine.
According to an embodiment of the invention, the detection system comprises an automatic pour point tester connected between the second circulation loop and the oil storage system for automatically measuring the pour point of the engine oil in the engine.
According to an embodiment of the present invention, the detection system further comprises an automatic moisture meter connected between the second circulation loop and the waste oil storage system to automatically measure the moisture content of the engine oil in the engine, and the automatic moisture meter is connected in parallel with the automatic pour point meter.
According to an embodiment of the present invention, the detection system further comprises an automatic potentiometric titrator connected between the second circulation loop and the waste oil storage system to automatically measure the total base number of the engine oil in the engine, and the automatic potentiometric titrator, the automatic moisture meter and the automatic pour point meter are connected in parallel.
According to an embodiment of the present invention, the detection system further includes an electric four-way valve, the electric four-way valve includes an oil inlet valve port and three oil outlet valve ports, the oil inlet valve port is communicated with the second circulation loop, and the three oil outlet valve ports are respectively communicated with the automatic pour point tester, the automatic moisture tester, and the automatic potentiometric titrator.
According to an embodiment of the present invention, the detection system further comprises a flow control valve disposed between the electric four-way valve and the second circulation circuit to regulate the flow of the engine oil into the automatic pour point tester, the automatic moisture tester and the automatic potentiometric titrator.
According to an embodiment of the present invention, the engine oil replacement accuracy control device further includes a temperature sensor and a heat exchanger provided on the first circulation circuit to detect and cool the temperature of the oil on the first circulation circuit.
According to an embodiment of the present invention, the engine oil replacement accuracy control device further includes a second electric ball valve provided on the second circulation circuit so that the oil in the engine flows into the second circulation circuit after satisfying a detection temperature.
According to an embodiment of the invention, the fresh oil storage system comprises a fresh oil storage tank and an oil filling valve, and the fresh oil storage tank is communicated with the oil inlet in an openable and closable mode through the oil filling valve.
According to an embodiment of the invention, the waste oil storage system comprises a first oil drain valve, a waste oil storage tank and a second oil drain valve which are connected in sequence, the waste oil storage tank and the oil outlet can be communicated in an opening and closing mode through the first oil drain valve, and the waste oil storage tank and the detection system can be communicated in an opening and closing mode through the second oil drain valve.
One embodiment of the present invention has the following advantages or benefits:
according to the engine oil replacement precision control device, the first circulation loop for cooling and the second circulation loop for detecting are respectively arranged between the oil inlet end of the engine oil pump and the oil outlet of the engine, so that the engine oil replacement process is effectively controlled in a fuel economy verification test of the engine oil, and the replacement precision of the engine oil is improved; by connecting the first circulation loop, the second circulation loop and the waste oil storage system to the oil outlet of the engine, when the physical and chemical parameters of the engine oil after the first replacement cannot meet the requirements, the engine oil can be directly replaced again, so that the oil drain bolt of the oil pan is prevented from being frequently dismounted, the sealing performance of the oil pan of the engine is ensured, and leakage is prevented; the detection assembly comprises an automatic pour point tester, an automatic moisture tester and an automatic potentiometric titrator which are respectively electrically connected with the control system, the operation is simple, the test of physical and chemical parameters is automatically detected and recorded by equipment, and the oil change efficiency is improved while the oil change precision is controlled; the mixing degree of the new oil and the old oil is judged by measuring three basic physicochemical parameters of the engine oil through the automatic pour point tester, the automatic moisture tester and the automatic potentiometric titrator, so that the accuracy of engine oil replacement is reflected, the error caused by the fact that a tester replaces the engine oil only by experience is avoided, and the accuracy and the controllability of oil replacement are improved.
Drawings
The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
Fig. 1 is a schematic diagram showing an engine oil change precision control apparatus according to an exemplary embodiment.
Wherein the reference numerals are as follows:
1. a fresh oil storage system; 11. a fresh oil storage tank; 12. an oil filling valve; 2. a waste oil storage system; 21. a first oil drain valve; 22. a waste oil storage tank; 23. a second oil drain valve; 3. an oil pump; 4. a first electrically powered ball valve; 5. a detection system; 51. an automatic pour point tester; 52. an automatic moisture meter; 53. an automatic potentiometric titrator; 54. an electric four-way valve; 55. a flow control valve; 61. a temperature sensor; 62. a heat exchanger; 7. a second electrically operated ball valve; 8. an engine.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
The terms "a," "an," "the," "said" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.
As shown in fig. 1, fig. 1 is a schematic diagram illustrating an engine oil replacement precision control device according to the present invention.
The engine oil replacement precision control device comprises a new oil storage system 1, a waste oil storage system 2, an engine oil pump 3, a first electric ball valve 4 and a detection system 4. The new oil storage system 1 is communicated with an oil inlet of an engine 8; the waste oil storage system 2 is communicated with an oil outlet of an engine 8; the oil pump 3 comprises an oil pump oil outlet end and an oil pump oil inlet end, the oil pump oil outlet end is communicated with the oil inlet, and the oil pump oil inlet end is communicated with the oil outlet through two oil pipes so as to form a first circulation loop for cooling and a second circulation loop for detecting physical and chemical parameters of the engine oil on the total circulation loop in parallel; the first electric ball valve 4 is arranged on the total circulating loop; the oil inlet end of the detection system 4 is communicated with the second circulation loop, and the oil outlet end of the detection system 4 is communicated with the waste oil storage system 2, so that the physical and chemical parameters of the engine oil in the engine 8 can be detected.
Wherein, the oil inlet of the engine 8 is arranged at the top part thereof, the oil outlet is arranged at the bottom part thereof, and the oil outlet is provided with an oil drain bolt of an oil pan, the oil drain operation is carried out on the engine 8 by screwing the oil drain bolt of the oil pan, the oil outlet end of the oil pump is communicated with the oil inlet through an oil pipe, a tee joint is arranged on the oil pipe, which is convenient for simultaneously communicating the new oil storage system 1 and the oil outlet end of the oil pump with the oil inlet, the oil inlet end of the oil pump is communicated with the oil outlet through the oil pipe, the oil inlet end of the oil pump is also communicated with the oil outlet through a tee joint, the oil inlet end of the waste oil storage system 2 and the oil inlet end of the oil pump are also communicated with the oil outlet, the first electric ball valve 4 is arranged on a total circulating loop, the oil drain bolt which needs to be repeatedly screwed down on the oil pan of the engine 8 is replaced when the engine 8 is self-cleaned, the oil outlet end of the oil pump is communicated with the oil inlet through two oil pipes, the oil pump 3 and the engine 8 form two loops of a first circulation loop and a second circulation loop, the oil circulates through the first circulation loop to be cooled, a detection assembly is connected between the second circulation loop and the waste oil storage system 2, preferably, a tee joint is connected between an oil inlet end and an oil outlet of the oil pump of the second circulation loop, a third interface of the tee joint is connected with an oil inlet end of the detection assembly, an oil outlet end of the detection assembly is connected with the waste oil storage system 2, the physical and chemical parameters of the changed oil can be detected, the oil changing precision is reflected from the side surface, the mixing degree of new oil and old oil is judged, the oil changing precision and controllability are improved, when the physical and chemical parameters of the changed oil do not meet the requirement, the oil can be changed again until the physical and chemical parameters of the changed oil meet the requirement.
In a preferred embodiment of the invention the detection system 4 comprises an automatic pour point tester 51, the automatic pour point tester 51 being connected between the second circulation loop and the oil storage system 2 for automatically measuring the pour point of the engine oil in the engine 8.
As shown in fig. 1, the oil inlet end of the automatic pour point tester 51 is connected to the second circulation circuit, the oil outlet end of the automatic pour point tester 51 is connected to the waste oil storage tank 22 through the second oil drain valve 23, when the engine oil is cooled to the temperature required by the automatic pour point tester 51, the oil flows through the automatic pour point tester 51, a small amount of the oil is left in the automatic pour point tester 51 to measure the pour point content of the engine oil, and the rest of the engine oil and the measured waste oil enter the waste oil storage tank 22 through the second oil drain valve 23.
In a preferred embodiment of the invention, the detection system 4 further comprises an automatic moisture meter 52, the automatic moisture meter 52 being connected between the second circulation circuit and the used oil storage system 2 for automatically measuring the moisture content of the engine oil in the engine 8, the automatic moisture meter 52 being connected in parallel with the automatic pour point tester 51.
As shown in fig. 1, the oil inlet end of the automatic moisture meter 52 is connected to the second circulation circuit, the oil outlet end of the automatic moisture meter 52 is connected to the waste oil storage tank 22 through the second oil drain valve 23, when the engine oil is cooled to the temperature required by the automatic moisture meter 52, the oil flows through the automatic moisture meter 52, a small amount of the oil is retained in the automatic moisture meter 52, the moisture content of the engine oil is measured by a drying weight loss method, and the rest of the engine oil and the measured waste oil enter the waste oil storage tank 22 through the second oil drain valve 23.
In a preferred embodiment of the present invention, the detection system 4 further comprises an automatic potentiometric titrator 53, the automatic potentiometric titrator 53 is connected between the second circulation loop and the used oil storage system 2 to automatically measure the total base number of the engine oil in the engine 8, and the automatic potentiometric titrator 53, the automatic moisture meter 52 and the automatic pour point meter 51 are connected in parallel.
As shown in FIG. 1, the engine oil is alkaline, and when the engine oil is titrated under prescribed conditions, the amount of perchloric acid required to neutralize all alkaline components in a 1g engine oil sample, expressed as milligrams of equivalent potassium hydroxide, becomes the total base number of the engine oil, which is an index for determining effective additive components in the engine oil, and indicates the detergency and neutralizing ability of the engine oil, the oil inlet end of the automatic potentiometric titrator 53 is connected to the second circulation circuit, so that a small portion of the engine oil reaching the pour point determination temperature enters the automatic potentiometric titrator 53, the oil outlet end of the automatic potentiometric titrator 53 is connected to the waste oil storage tank 22 through the second oil drain valve 23, and a small portion of the engine oil is left to be determined in the automatic potentiometric titrator 53 while the engine oil flows through the automatic potentiometric titrator 53, and the rest of the engine oil and the determined waste oil are directly discharged into the waste oil storage tank 22.
In a preferred embodiment of the present invention, the detection system 4 further comprises an electric four-way valve 54, wherein the electric four-way valve 54 comprises an oil inlet valve port and three oil outlet valve ports, the oil inlet valve port is communicated with the second circulation loop, and the three oil outlet valve ports are respectively communicated with the automatic pour point tester 51, the automatic moisture tester 52 and the automatic potentiometric titrator 53.
As shown in fig. 1, the three oil outlet ports include a first oil outlet port, a second oil outlet port and a third oil outlet port, wherein the first oil outlet port is connected to the oil inlet end of the automatic pour point tester 51, the second oil outlet port is connected to the oil inlet end of the automatic moisture tester 52, the third oil outlet port is connected to the oil inlet end of the automatic potentiometric titrator 53, when the pour point is measured, the electric four-way valve 54 connects the oil inlet port and the first oil outlet port, when the moisture is measured, the electric four-way valve 54 connects the oil inlet port and the second oil outlet port, when the total base number is measured, the electric four-way valve 54 connects the oil inlet port and the third oil outlet port, the automatic pour point tester 51, the automatic moisture tester 52 and the automatic potentiometric titrator 53 are connected in parallel through the electric four-way valve 54, so that the engine oil can enter the corresponding tester when the total base number reaches one of the measuring temperatures, thereby making each measured physicochemical parameter more accurate.
In a preferred embodiment of the present invention, the detection system 4 further comprises a flow control valve 55, and the flow control valve 55 is disposed between the electric four-way valve 54 and the second circulation circuit to regulate the flow of the oil into the automatic pour point tester 51, the automatic moisture tester 52 and the automatic potentiometric titrator 53.
As shown in fig. 1, since the flow rates of the engine oil required by the automatic pour point tester 51, the automatic moisture tester 52 and the automatic potentiometric titrator 53 are small, the oil inlet end of the flow control valve 55 is connected to the second circulation loop, the oil outlet end of the flow control valve 55 is connected to the oil inlet port of the electric four-way valve 54, so as to control the flow rate entering the detection system 4 through the flow control valve 55,
in a preferred embodiment of the present invention, the engine oil replacement accuracy control device further includes a temperature sensor 61 and a heat exchanger 62 provided on the first circulation circuit to detect and cool the temperature of the oil on the first circulation circuit.
As shown in fig. 1, a heat exchanger 62 is connected to the first circulation loop, an oil outlet end of the heat exchanger 62 is connected to an oil inlet end of an oil pump, an oil inlet end of the heat exchanger 62 is connected to an oil outlet, and the cooling rate of the oil can be accelerated in the first circulation loop, and a temperature sensor 61 is arranged on the first circulation loop, so that the temperature of the oil in the cooling process is monitored in real time, and after the temperature measurement requirements of an automatic pour point tester 51, an automatic moisture tester 52 and an automatic potentiometric titrator 53 are respectively met, a flow control valve 55 and an electric four-way valve 54 are opened, so that the oil in the engine automatically opens a first oil outlet valve port when the temperature requirement of the automatic pour point tester 51 is met; when the temperature requirement of the automatic moisture meter 52 is met, the second oil outlet valve port is automatically opened; and when the temperature requirement of the automatic potentiometric titrator 53 is met, the third oil outlet valve port is automatically opened.
In a preferred embodiment of the present invention, the engine oil replacement precision control device further includes a second electric ball valve 7, and the second electric ball valve 7 is disposed on the second circulation loop, and the first electric ball valve 4 and the second electric ball valve 7 are matched to make the engine oil in the engine 8 flow into the second circulation loop after meeting the detection temperature.
As shown in fig. 1, the second electric ball valve 7 is provided on the second circulation circuit to shut down the second circulation circuit when the temperature of the engine oil after the engine 8 is cleaned is higher than the temperature required by the detection system 4. After the engine 8 is self-cleaned, the first electric ball valve 4 is opened, the engine oil is sequentially cooled by the engine 8, the heat exchanger 62 and the oil pump 3 on the first circulation loop, after the temperature is cooled to the pour point measuring temperature, the second electric ball valve 7, the flow valve, the electric four-way valve 54 and the second oil drain valve 23 are opened, the engine oil also sequentially passes through the engine 8 and the oil pump 3 on the second circulation loop, the detection system 4 is communicated with the second circulation loop and the waste oil storage system 2, when the engine oil passes through the position accessed by the detection system 4, a small amount of the engine oil is squeezed into the automatic pour point measuring instrument 51 for automatic pour point measurement, and the automatic moisture measuring instrument 52 and the automatic potentiometric titrator 53 are also used.
Preferably, the engine oil replacement precision control device further comprises a control system, the oil pump 3, the temperature sensor 61, the first electric ball valve 4, the second electric ball valve 7, the flow control valve 55, the electric four-way valve 54, the oil filling valve 12, the first oil drain valve 21 and the second oil drain valve 23 can be electrically connected with the control system, in the initial stage, the control system opens the first oil drain valve 21 to drain the oil in the engine 8, then closes the first oil drain valve 21 and opens the oil filling valve 12 to enable the target oil in the new oil storage tank 11 to enter the engine 8, closes the oil filling valve 12 to start the engine 8 to self-clean after reaching the preset capacity of the engine 8, then the control system opens the first electric ball valve 4, under the action of the oil pump 3, the oil enters the first circulation loop to be cooled through the heat exchanger 62, and simultaneously the temperature sensor 61 on the first circulation loop transmits the real-time temperature to the control system, when the temperature of pour point measurement is reached, the control system starts the second electric ball valve 7, the flow control valve 55, the electric four-way valve 54 and the second oil drain valve 23, wherein the electric four-way valve 54 is communicated with the oil inlet valve port and the first oil outlet valve port, so that a small part of engine oil is extruded on the second circulation loop to enter the detection system 4, and sequentially passes through the flow control valve 55, the electric four-way valve 54, the automatic pour point tester 51, the second oil drain valve 23 and the waste oil storage tank 22, and so on, when the oil cooling reaches the moisture measurement and the total base number measurement, related valves are respectively started through the control system to form a passage, so that the measurement of the whole engine oil replacement precision is fully automatic.
In a preferred embodiment of the present invention, the fresh oil storage system 1 includes a fresh oil storage tank 11 and a filler valve 12, and the fresh oil storage tank 11 is in openable and closable communication with the oil inlet through the filler valve 12.
As shown in FIG. 1, the new oil storage tank 11 stores the target engine oil for engine oil replacement, the engine 8 needs to be cleaned with the target engine oil before the engine oil replacement, the new oil storage tank 11 is communicated with an oil inlet of the engine 8 through an oil filling valve 12, the oil filling valve 12 is opened, a sufficient amount of the target engine oil enters the engine 8, then the oil filling valve 12 is closed, and the engine 8 can be started for self-cleaning, so that the new oil and the residual old oil can be fully mixed.
In a preferred embodiment of the present invention, the waste oil storage system 2 comprises a first oil drain valve 21, a waste oil storage tank 22 and a second oil drain valve 23 which are connected in sequence, the waste oil storage tank 22 is in openable and closable communication with the oil outlet through the first oil drain valve 21, and the waste oil storage tank 22 is in openable and closable communication with the detection system 4 through the second oil drain valve 23.
As shown in fig. 1, after the first oil drain valve 21 is opened, the oil outlet of the engine 8 can be communicated to drain the residual engine oil in the engine 8 into the waste oil storage tank 22 by gravity, and after the second oil drain valve 23 is opened, the automatic pour point tester 51 and the waste oil storage tank 22, or the automatic moisture tester 52 and the waste oil storage tank 22, or the automatic potentiometric titrator 53 and the waste oil storage tank 22 can be communicated to send the detected engine oil waste liquid into the waste oil storage tank 22.
According to the engine oil replacement precision control device, the first circulation loop for cooling and the second circulation loop for detecting are respectively arranged between the oil inlet end of the engine oil pump and the oil outlet of the engine 8, so that the replacement process of the engine oil is effectively controlled in the fuel economy verification test of the engine oil of the engine 8, and the replacement precision of the engine oil of the engine 8 is improved; by connecting the first circulation loop, the second circulation loop and the waste oil storage system 2 to the oil outlet of the engine 8, when the physical and chemical parameters of the engine oil after the first replacement cannot meet the requirements, the engine oil can be directly replaced again, so that the oil drain bolt of the oil pan is prevented from being frequently disassembled and assembled, the sealing performance of the oil pan of the engine 8 is ensured, and leakage is prevented; the detection assembly comprises an automatic pour point tester 51, an automatic moisture tester 52 and an automatic potentiometric titrator 53 which are respectively electrically connected with the control system, the operation is simple, the test of physical and chemical parameters is automatically detected and recorded by equipment, and the oil change efficiency is improved while the oil change precision is controlled; the three basic physicochemical parameters of the engine oil are measured by the automatic pour point tester 51, the automatic moisture tester 52 and the automatic potentiometric titrator 53 to judge the mixing degree of the new oil and the old oil, so that the accuracy of engine oil replacement is reflected, the error caused by the experiment because a tester only changes the oil by experience is avoided, and the accuracy and the controllability of oil replacement are improved.
In embodiments of the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or units must have a specific direction, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the embodiments of the present invention.
In the description herein, the appearances of the phrase "one embodiment," "a preferred embodiment," or the like, are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present embodiment by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.
Claims (10)
1. The utility model provides an engine oil changes accuracy control device which characterized in that includes:
the fresh oil storage system (1), the fresh oil storage system (1) is communicated with an oil inlet of the engine (8);
a waste oil storage system (2), the waste oil storage system (2) being in communication with an oil outlet of the engine (8); and
the oil pump (3) comprises an oil pump oil outlet end and an oil pump oil inlet end, the oil pump oil outlet end is communicated with the oil inlet, and the oil pump oil inlet end is communicated with the oil outlet through two oil pipes so as to form a first circulation loop for cooling and a second circulation loop for detecting physical and chemical parameters of the engine oil on the total circulation loop in parallel;
the first electric ball valve (4), the first electric ball valve (4) is arranged on the main circulation loop; and
the detection system (5), the detection oil inlet end of the detection system (5) with the second circulation loop is communicated, the detection oil outlet end of the detection system (5) is communicated with the waste oil storage system (2), and the detection of physical and chemical parameters is carried out on the engine oil in the engine (8).
2. The engine oil change precision control device according to claim 1, characterized in that the detection system (5) comprises an automatic pour point tester (51), the automatic pour point tester (51) being connected between the second circulation circuit and the oil storage system (2) to automatically measure the pour point of the oil in the engine (8).
3. The engine oil change precision control device according to claim 2, characterized in that the detection system (5) further comprises an automatic moisture meter (52), the automatic moisture meter (52) being connected between the second circulation circuit and the used oil storage system (2) to automatically measure the moisture content of the engine oil in the engine (8), the automatic moisture meter (52) being connected in parallel with the automatic pour point meter (51).
4. The engine oil change precision control device according to claim 3, wherein the detection system (5) further comprises an automatic potentiometric titrator (53), the automatic potentiometric titrator (53) is connected between the second circulation loop and the waste oil storage system (2) to automatically measure the total base number of the engine oil in the engine (8), and the automatic potentiometric titrator (53), the automatic moisture meter (52) and the automatic pour point meter (51) are connected in parallel.
5. The apparatus for controlling precision of engine oil replacement according to claim 4, wherein the detection system (5) further comprises an electric four-way valve (54), the electric four-way valve (54) comprises an oil inlet port and three oil outlet ports, the oil inlet port is communicated with the second circulation loop, and the three oil outlet ports are respectively communicated with the automatic pour point tester (51), the automatic moisture tester (52) and the automatic potentiometric titrator (53).
6. The engine oil change precision control device according to claim 5, characterized in that the detection system (5) further comprises a flow control valve (55), the flow control valve (55) being disposed between the electric four-way valve (54) and the second circulation circuit to regulate the flow of the oil into the automatic pour point tester (51), the automatic moisture tester (52) and the automatic potentiometric titrator (53).
7. The engine oil replacement accuracy control device according to claim 1, further comprising a temperature sensor (61) and a heat exchanger (62) provided on the first circulation circuit to detect and cool the temperature of the oil on the first circulation circuit.
8. The engine oil replacement accuracy control device according to claim 1, further comprising a second electric ball valve (7), wherein the second electric ball valve (7) is provided on the second circulation circuit, so that the oil in the engine (8) flows into the second circulation circuit after meeting a detection temperature.
9. The engine oil replacement accuracy control device according to claim 1, wherein the fresh oil reservoir system (1) includes a fresh oil reservoir tank (11) and an oil filler valve (12), and the fresh oil reservoir tank (11) and the oil inlet are in openable and closable communication by the oil filler valve (12).
10. The engine oil replacement precision control device according to claim 1, wherein the waste oil storage system (2) comprises a first oil drain valve (21), a waste oil storage tank (22) and a second oil drain valve (23) which are connected in sequence, the waste oil storage tank (22) is in openable and closable communication with the oil outlet through the first oil drain valve (21), and the waste oil storage tank (22) is in openable and closable communication with the detection system (5) through the second oil drain valve (23).
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