KR0149368B1 - Engine oil sampling device for oil pollution level - Google Patents

Abstract

A retaining wall and a collector operating groove are formed in the front and rear sides of the bulkhead, which are installed in the central portion of the rectangular space, and are formed in the front and rear sides thereof, and the spring mounting groove is formed at the rear of the space. A large diameter hydraulic passage is formed in the lower side of the mounting groove in the longitudinal direction, and its front end communicates with the front side of the spring mounting groove, and a body having a small diameter flow passage communicating with the front side of the hydraulic passage and penetrating to the front side. Wealth; A retainer mounted on the retainer mounting groove such that a bottom surface is flush with the bottom surface of the partition wall; A collector which is slidably arranged in the lower part of the retainer and in the collector operation groove so as to be slidable so that when the engine is started, the flat part of the front part is drawn out to the front of the body part to collect the suspended matter contained in the engine oil; Collector return means for pulling back the collector to the rear when the engine is stopped; Flow path opening and closing means for opening and closing the flow path in accordance with a change in temperature at the boundary between the hydraulic passage and the flow path; It is provided under the collector and provided with an engine oil pollution degree measuring device configured to have a collector position detecting means for detecting the return position of the collector at the time of return of the collector, so that it is possible to accurately measure the degree of contamination of engine oil It can be exchanged to prevent engine damage caused by engine oil contamination, to extend the service life, and to automatically measure the pollution level of engine oil to provide convenience.

Description

Oil sampling device for measuring engine oil contamination

1 is a cross-sectional view of a sampling device according to the present invention.

FIG. 2 (a) is a cross-sectional view taken along the line A-A of FIG.

(b) is sectional drawing along the B-B line | wire of FIG.

3 is an enlarged cross-sectional view of portion C of FIG.

FIG. 4 (a) is an enlarged cross-sectional view of portion D of FIG.

(b) is sectional drawing of the E-E line | wire of (a).

(A) (b) (c) (d) is an operating state diagram of the present invention.

* Explanation of symbols for main parts of the drawings

1 body portion 2 space portion

3: bulkhead 4: retainer mounting groove

5: Collector operating groove 6: Spring mounting groove

7: hydraulic passage 8: euro

10: retainer 20: collector

21: flat part 22: vertical part

30: collector return means 31: elastic member

35 bolt 40 flow path opening and closing means

41: bimetal valve plate 42: switch

50: collector return position detection means 51: connection terminal

52: position terminal

The present invention relates to a sampling device capable of sampling the engine oil to be measured so as to automatically measure the contamination of the engine oil.

The engine oil in the engine is supplied to each moving part inside the engine to convert a large frictional friction into a fluid friction, thereby minimizing friction loss and wear of parts to increase the mechanical efficiency, sealing, cooling, cleaning, stress It plays an important role in dispersion and rust prevention.

These engine oils can not only faithfully perform the above action when the viscosity is kept above a certain level, but also decrease the viscosity below a certain level because they promote abrasion of each moving part when contaminated with suspended solids such as metal powder generated during operation of the engine. Or if it is contaminated, it must be exchanged.

In setting the engine oil replacement time by measuring the viscosity and pollution degree of the engine oil as described above, the driver is usually driven by the mileage of the vehicle because the engine itself is not provided with a device for measuring the viscosity and pollution degree. The oil change will be scheduled.

However, in the case of determining the oil replacement time according to the driving distance of the vehicle as described above, there are many problems in setting the proper oil replacement time due to the inaccurate viscosity and pollution degree of the engine oil depending on the driving conditions of the vehicle.

In addition, there is an example of checking the state of the engine oil by feeling the viscosity and float by rubbing it with the finger of the engine oil or the color of the engine oil regardless of the mileage of the car. Timing engine oil changes involves the problems of being very primitive, inaccurate and unscientific.

In addition, in order to check the viscosity and contamination of the engine oil with the naked eye and touch as described above, it is very cumbersome to remove the oil level gauge by opening the hood forming the upper cover of the engine compartment of the automobile and removing the oil level gauge. There were a lot of problems with engine management, such as having to be buried, so that drivers could avoid it and miss the proper oil change.

Therefore, the present invention was created in order to solve the conventional problems as described above, an object of the present invention is to sample the engine oil of the measurement target to accurately and automatically measure the contamination level of the engine oil to signal according to the degree of contamination By allowing the ECU, which is a control device, to be alerted by a predetermined alarm means to replace the engine oil in a timely manner, it prevents the engine from being damaged by the contamination of the engine oil, thereby extending the service life and automatically measuring the contamination level of the engine oil. It is intended to provide an oil sampling device for measuring engine oil contamination that may be convenient to carry out.

In order to realize this, the present invention has a barrier rib which is placed in the center of the rectangular space portion downward in the longitudinal front side in the middle portion, and retainer mounting grooves and collector operating grooves are formed in front and rear sides thereof, and spring-mounted in the rear side of the space portion. A groove is formed, and a large diameter hydraulic passage is formed in the lower portion of the spring mounting groove in a longitudinal direction so that its tip communicates with the front side of the spring mounting groove, and communicates with the front side of the hydraulic passage to penetrate to the front side. A body portion having a small diameter flow path formed therein; A retainer mounted on the retainer mounting groove such that a bottom surface is flush with the bottom surface of the partition wall; A collector which is slidably arranged in the lower part of the retainer and in the collector operation groove so as to be slidable so that when the engine is started, the flat part of the front part is drawn out to the front of the body part and collects the suspended matter contained in the engine oil; Collector return means for pulling back the collector to the rear when the engine is stopped; Flow path opening and closing means for opening and closing the flow path in accordance with a change in temperature at the boundary between the hydraulic passage and the flow path; It is characterized in that it provides an oil sampling device for measuring the engine oil pollution degree disposed on the lower portion of the collector and provided with a collector position detecting means for detecting the return position of the collector in time.

It is characterized in that the lower edge portion of the front end of the retainer mounted in the retainer mounting groove of the body portion is formed in the inclined surface.

The collector, which is slidably installed at the lower side of the retainer, is formed of a front portion and a vertical portion at the rear side so that the flat portion is disposed at the lower side of the retainer, and the vertical portion is located at the collector mounting groove and the hydraulic passage at the start of the engine. The flat portion is drawn out to the front of the body portion within the length of the collector mounting groove by the hydraulic pressure supplied through it is characterized in that it is formed to collect the suspended matter is contained in the engine oil.

The retainer is made of the same material as the cylinder wall, the collector is formed of the same material as the piston ring is characterized in that the same conditions as the friction between the cylinder wall and the piston ring of the engine during friction between the retainer and the collector.

The bottom of the space portion in contact with the bottom of the collector and the bottom of the collector is characterized by coating a polymer lubricating material such as Teflon in order to minimize mutual friction.

The collector return means for pulling back the collector to the rear when the engine is stopped includes an elastic member that exerts an elastic force that pulls the collector to the rear side, and a rear end of the elastic member connected to one of the heads, It is characterized by being formed of a bolt to which the nut is fastened.

The channel opening and closing means for opening and closing the flow path at the boundary between the hydraulic passage and the flow path is formed of a bimetal valve plate in which metals having two different thermal expansion coefficients are joined to each other. It is fixed to the front end of the flow path to open the, and the free end of the bimetal valve plate is characterized in that the switch is operated in accordance with the opening and closing operation of the bimetal valve plate.

The collector position detecting means for detecting the position of the collector forms a semicircular connection terminal on the bottom of the collector and a plurality of position terminals are arranged on the left and right sides of the connection terminal at equal intervals with respect to the direction of collector movement in the bottom body thereof. According to the moving position of the connection terminal by connecting the position terminal at the current position, it is characterized in that it is formed to detect the current position and the return delay time of the collector.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described in detail.

1 and 2 are cross-sectional views of the oil sampling apparatus according to the present invention, wherein reference numeral 1 designates a body portion.

The body portion 1 is formed of a rectangular parallelepiped and has a rectangular space portion 2 as a longitudinal front side portion on the upper side of the middle portion, and has a retainer mounting groove 4 and a collector operating groove having a partition wall 3 which is placed in the center portion. Separately formed by (5), a cylindrical spring mounting groove 6 is formed on the rear side of the space (2).

A large diameter hydraulic passage 7 is formed in the lower side of the spring mounting groove 6 in a longitudinal direction thereof, and a front end thereof communicates with the front side of the spring mounting groove 6. The front side is in communication with a small diameter flow path 8 penetrating the front end of the body 1.

The retainer 10 mounted in the retainer mounting groove 4 of the body portion 1 is formed of the same material as the material of the engine cylinder wall, and is mounted such that the bottom thereof forms the same surface as the bottom surface of the partition 3. The lower edge part of the tip is formed of the inclined surface 11.

The collector 20, which is slidably installed before and after the retainer 10, is formed of a front portion 21 and a vertical portion 22 of the rear side, so that the flat portion 21 is a retainer 10. The vertical portion 22 is disposed in the collector mounting groove 5 and the sealer 23 is installed on the outer side of the vertical portion 22 to maintain the airtight. Will be implemented.

In addition, the material of the collector 20 is preferably made of the same material as the piston ring, and the same condition as the friction between the cylinder wall of the engine and the piston ring during friction between the retainer 10 and the collector 20 is preferable.

In addition, the bottom surface of the space portion 2 in which the bottom surface of the collector 20 and the bottom surface of the collector 20 are in contact with each other may be processed very smoothly or may be coated with a polymer lubricating material such as Teflon to minimize frictional resistance.

The spring mounting groove 6 of the body portion 1 is formed with a return means 30 for pulling back the collector 20 when the engine is stopped, and the collector return means 30 is configured to return the collector 20. An elastic member 31 which exerts an elastic force to be pulled to the rear side and a rear end of the elastic member 31 are connected to one head 32 and a nut from the outside of the body 1 to the male thread 33 on the other side. It consists of a bolt 35 to which the 34 is fastened.

A sealer 36 is installed on the outer circumference of the head part 32 of the bolt 35 to maintain the air tightness of the spring mounting groove 6, and loosen and tighten the nut 34 fastened to the male thread part 33. As a result, the elastic force of the elastic member 31 is increased or decreased.

And at the boundary between the hydraulic passage 7 and the flow path 8 is formed flow opening and closing means 40 for opening and closing the flow path 8 in accordance with the change in temperature, the flow opening and closing means 40 is shown in FIG. The bimetallic valve plate 41 is formed by joining metals having two different coefficients of thermal expansion, as shown in Fig. 2, wherein the flow path 8 is opened to open the flow path 8 when the temperature of the body portion 1 falls below a certain level. The free end body portion 1 of the bimetal valve plate 41 is fixed to the front end and is provided with a switch 42 which is operated in accordance with the opening and closing operation of the bimetal valve plate 41.

The switch 42 uses a switch that is turned OFF when the bimetal valve plate 41 is closed and is ON when opened.

The collector position detecting means 50 for detecting the position of the collector 20 forms a semi-circular connecting terminal 51 on the bottom of the collector 20 as shown in FIG. A plurality of position terminals 52 are disposed on the left and right sides of the connection terminal 51 at equal intervals with respect to the traveling direction of the collector 20 so that the connection terminal 51 is in the current position according to the movement position of the collector 20. By connecting the terminal 52, it is configured to recognize the current position of the collector 20 in the control device.

The switch 42 and the position terminal 52 for detecting the opening and closing of the flow path 8 are connected to an ECU, which is a control device, not shown. In the ECU, a signal sent from the switch 42 and the position terminal 52 is provided. Compared with the program that is already input to determine the operation of the alarm device is formed on the instrument panel of the driver's seat.

The information device is to be operated by the signal of the ECU according to the pollution degree of the engine oil, it may be preferable to turn on or flash a warning light as an alarm means.

The apparatus of the present invention made as described above is mounted at a lower predetermined position of the cylinder block so that the oil can be sampled at the point where the engine oil is supplied to each lubrication part and then falls into the crankcase.

Such an effect of the present invention will be described with reference to FIG. 5 as follows.

FIG. 5 (a) shows a state in which the engine is operated. When the engine is operated, the hydraulic passage 7 of the body part 1 is in the process of being pumped to each of the moving parts by an oil pump not shown with oil. Flows through).

Then, the engine oil flows into the spring mounting groove 6 through the hydraulic passage 7 so that the hydraulic pressure is applied to the vertical portion 22 of the collector 20 while overcoming the elastic force of the elastic member 41 to transfer the collector 20. The flat portion 21 of the collector 20 pushed to the side and thus pushed to the front side is maintained in the state drawn out to the front side of the body portion 1.

In this state, the engine is operated, and as the engine oil flows, the suspended solids (S) such as metal powder contained therein float in the oil.

When the engine is operated in the above state and the engine is stopped, the suspended solids S contained in the oil fall with the engine oil to the lower part of the engine. At this time, the flat portion 21 of the collector 20 is shown in FIG. Since the state drawn out in the middle portion is maintained as in the), the suspended solids (S) is deposited on the upper surface of the flat portion (21).

As described above, the collector 20 is in a state as shown in FIG. 5C until the stopped engine drops below a predetermined temperature in the state in which the floating oil S of the engine oil is deposited on the flat portion 21 of the collector 20. ) Is kept in the drawn out state, and when the temperature is lower than the predetermined temperature, the bimetal valve plate 41 of the flow opening / closing means 40 which is blocking the flow passage 8 is operated like the virtual line of FIG. Will open.

Then, the oil remaining in the spring mounting groove 6 is pulled out through the flow path 8 so that the collector 20 is pulled to the rear side by the restoring force of the elastic member 31 and operated by the bimetal valve plate 41. As the switch 42 is turned on, the flow path 8 is opened to inform the ECU that the collector 20 has started to move backward.

As shown in FIG. 5 (d), the collector 20 moves to the rear side and causes the suspended matter S deposited on the flat portion 21 to friction with the bottom surface of the retainer 10 formed of the same material as the engine cylinder wall. At the same time, the collector position sensing means 50 formed at the bottom thereof sends to the ECU where the current collector 20 is located.

That is, when the collector 20 has a large amount of floating material S when retracted, the frictional force with the retainer 10 is large, and when the floating material S is small, the frictional force becomes small, so that the retracting speed and the moving distance of the collector 20 are the floating material. (S) is large and small and depends on the frictional force between the metal, such as the oil viscosity and the ECU is to measure the contamination of the engine oil in accordance with the retardation delay speed of the collector 20.

Since the operation of the measuring device as described above is repeatedly performed at the start and stop of the engine, the driver does not need to check the viscosity and pollution degree by converting the driving distance of the vehicle or visually or by touching the engine oil as in the prior art. .

The contamination of the engine oil measured by the above process is memorized by the ECU, and when the driver inserts the key to start the engine, the alarm is alerted to the alarm device provided in the instrument panel. This enables the operator to know the degree of contamination of the engine oil at all times, so that the engine oil can be replaced in a timely manner without losing the time of changing the engine oil, thereby preventing damage to the engine caused by contamination of the engine oil and extending its life. will be.

Claims (8)

A partition 3 is placed downward in the center of the rectangular space portion 2 at the front side in the longitudinal direction, and a retainer mounting groove 4 and a collector operating groove 5 are formed in front and rear sides thereof. A spring mounting groove 6 is formed at the rear side of the portion 2, and a large diameter hydraulic passage 7 is formed in the lower portion of the spring mounting groove 6 in the longitudinal direction so that its front end is the spring mounting groove 6. A body portion (1) communicating with the front side of the front side, and having a small diameter flow path (8) communicating with the front side of the hydraulic passage (7) and penetrating to the front side; A retainer (10) mounted on the retainer mounting groove (4) such that a bottom surface is flush with the bottom surface of the barrier rib (3); It is arranged to be slidable before and after the lower part of the retainer 10 and the collector operating groove (5) so that the front flat portion 21 is drawn out to the front of the body portion 1 when the engine is started and is contained in the engine oil. Collector 20 for collecting the suspended matter (S); Collector return means (30) for pulling back the collector (20) to the rear when the engine is stopped; Flow passage opening and closing means (40) for opening and closing the flow passage (8) at the boundary between the hydraulic passage (7) and the flow passage (8); The oil sampling device for measuring the engine oil pollution level, characterized in that the collector is disposed on the lower portion of the collector 20, the collector position detecting means for detecting the return position of the collector 20 in time. The oil for measuring the engine oil pollution level according to claim 1, wherein the lower edge portion of the front end of the retainer 10 mounted in the retainer mounting groove 4 of the body portion 1 is formed as an inclined surface 11. Sampling device. The collector 20 according to claim 1, wherein the collector 20, which is slidably installed at the lower side of the retainer 10, is formed of a flat portion 21 on the front side and a vertical portion 22 on the rear side. Is disposed below the retainer 10, the vertical portion 22 is located in the collector mounting groove 5, the length of the collector mounting groove 5 by the hydraulic pressure supplied through the hydraulic passage 7 at the start of the engine The oil sampling apparatus for measuring the engine oil contamination level, characterized in that the flat portion 21 is drawn out to the front of the body portion within the range to form the suspended solids (S) to be collected in the engine oil. The engine of claim 2 or 3, wherein the retainer 10 is made of the same material as the cylinder wall, and the collector 20 is made of the same material as the piston ring, so that the engine of the engine during friction between the retainer 10 and the collector 20 is formed. Engine oil contamination measuring device, characterized in that the same conditions as the friction between the cylinder wall and the piston ring. 2. The engine oil according to claim 1, wherein the bottom surface of the space portion 2 in which the bottom surface of the collector 20 and the bottom surface of the collector 20 are in contact is coated with a polymer lubricating material such as Teflon to minimize mutual frictional force. Oil sampling device for contamination measurement. The method of claim 1, wherein the collector return means 30 for pulling back the collector 20 when the engine is stopped is an elastic member 31 that exerts an elastic force for pulling the collector 20 backward, and one head portion ( 32, the rear end of the elastic member 31 is connected to the engine oil, characterized in that formed by a bolt 35 to which the nut 34 is fastened from the outside of the body portion 1 to the male screw portion 33 on the other side. Oil sampling device for contamination measurement. 2. The flow path opening and closing means (40) for opening and closing the flow path (8) at the boundary between the hydraulic passage (7) and the flow path (8) in accordance with a change in temperature is a bimetal in which a metal having two different thermal expansion coefficients is joined. It is formed of a valve plate 41, and fixed to the front end of the flow path (8) so that the flow path (8) can be opened when the temperature of the body portion 1 is lowered below a certain level, the of the bimetal valve plate (41) An oil sampling device for measuring an engine oil pollution level, characterized in that the free end body portion (1) is provided with a switch (42) operated according to the opening and closing operation of the bimetal valve plate (41). The method of claim 1, wherein the collector position detecting means 50 for detecting the position of the collector 20 forms a semicircular connection terminal 51 on the bottom of the collector 20 and the collector (1) on the bottom body portion 1 thereof. A plurality of position terminals 52 are disposed at the left and right sides of the connection terminal 51 at equal intervals with respect to the traveling direction of the 20, and thus, the position terminal (C) with the connection terminal 51 at the current position according to the movement position of the collector 20 ( 52) by connecting, the oil sampling device for measuring the engine oil contamination, characterized in that formed to detect the current position and the return delay time of the collector (20).