CN1755349A - Engine oil lifetime monitoring apparatus for internal combustion engine - Google Patents
Engine oil lifetime monitoring apparatus for internal combustion engine Download PDFInfo
- Publication number
- CN1755349A CN1755349A CN 200410066769 CN200410066769A CN1755349A CN 1755349 A CN1755349 A CN 1755349A CN 200410066769 CN200410066769 CN 200410066769 CN 200410066769 A CN200410066769 A CN 200410066769A CN 1755349 A CN1755349 A CN 1755349A
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- CN
- China
- Prior art keywords
- friction head
- motor
- oil
- internal combustion
- combustion engine
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Testing Of Engines (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a diesel engine oil aging monitor which comprises a sensor and a detecting circuit, wherein the sensor comprises a motor, a friction head and an oil measuring pipe, wherein the friction head is arranged inside the oil detecting circuit and is attached with the inner wall of the oil measuring pipe; the rotation shaft of the friction head is connected with the motor which is connected with the detecting circuit. When the oiliness of engine oil fell down to a certain degree, the friction head builds up, the motor burden builds up to the set value, the circuit rotates, the guiding lamp sends the alarm guide.
Description
Technical field
The present invention relates to internal combustion engine, is the monitoring device that is used to detect the motor oil life-span.
Background technology
Machine oil plays a part lubricated in internal combustion engine, and internal combustion engine makes machine breakdown lacking under the situation of machine oil the fault that can produce overheated, scuffing of cylinder bore, parts heavy wear.At present, mainly be that engine oil pressure is monitored in internal combustion engine, when oil pressure is reduced to certain value, indication gives a warning.And machine oil is after using certain hour, and its physical property is that lubricity descends, and can the serviceability of internal combustion engine be exerted an influence, and also can produce the fault of overheated, scuffing of cylinder bore, parts heavy wear when serious, makes machine breakdown.Present method is regularly machine oil to be changed, or rule of thumb judges the quality of machine oil, is easy to generate mistake and forgets, and influences the use of internal combustion engine.
Summary of the invention
The object of the invention is to provide a kind of and automatically machine oil is carried out device for monitoring, drops to a certain degree in the machine oil performance, and when promptly reaching serviceable life, the indication that gives a warning is to guarantee the normal use of internal combustion engine.
The solution of the present invention is: engine oil lifetime monitoring apparatus for internal combustion engine, comprise sensor and testing circuit, wherein, sensor comprises motor, friction head, survey oil pipe, in surveying oil pipe, friction head is set, friction head is close to the survey tube inner wall, sliding contact, and the rotating shaft of friction head is connected with motor, and motor is connected with testing circuit; Be provided with electric bridge in the testing circuit, motor is located in the electric bridge, and electric bridge is connected with the input end of voltage comparator, and the output terminal of voltage comparator connects pilot lamp.
Advantage of the present invention is: during use, survey oil pipe and be immersed in the machine oil, the driven by motor friction head rotates, produce sliding friction with the survey tube inner wall, because organic oil between friction head and survey tube inner wall, the size of this friction force is directly related with the greasy property of machine oil, and this friction force is the load of motor, its size detects by testing circuit, when the lubricity of machine oil dropped to a certain degree, friction force increased, and motor load increases to setting value, circuit upset, the pilot lamp indication that gives a warning.This device has the advantage of automatic detection, prevents to produce mistake and forget, and guarantees the normal use of internal combustion engine.
Description of drawings
The invention will be further described with embodiment with reference to the accompanying drawings below.
Fig. 1 is circuit theory diagrams of the present invention.
Fig. 2 is the sensor construction synoptic diagram.
Among Fig. 1, G is a motor, IC
1Be voltage comparator, IC
2It is integrated regulator.
Among Fig. 2,1 shaft coupling, 2 axle sleeves, 3 bearings, 4 stage clips, 5 regulate nut, 6 stoppers, 7 survey oil pipe, 8 oil supply holes, 9 friction heads, 10 rotating shafts, 11 supports, 12 jump rings.
Embodiment
As shown in Figure 2, sensor comprises motor G, friction head 9, surveys oil pipe 7, in surveying oil pipe 7 friction head 9 is set, and the inwall corresponding position of friction head 9 and survey oil pipe 7 is all made taper in correspondence with each other, contacts by cone match; The rotating shaft 10 of friction head 9 is provided with the tensioning system of being made up of axle sleeve 2, stage clip 4, and friction head 9 and survey oil pipe 7 inwalls are close to, and can be by regulating the pulling force that nut 5 is regulated friction head 9; Rotating shaft 10 is connected by shaft coupling 1 with motor G, and the surface of contact between shaft coupling 1 and the rotating shaft 10 is made prismatic or spline, makes it and can move axially, with the adjusting of fit adjustment nut 5.
During use, sensor is inserted in the oil rule mounting hole of internal combustion engine, fixes, in the slit of machine oil by oil supply hole 8 engaging frictions 9 and the inwall of surveying oil pipe 7 with stopper 6 jam-packs.
With reference to Fig. 1, V
CCBe positive source, IC
2, capacitor C
1, C
2Form mu balanced circuit, resistance R
1, R
2, R
3Form electric bridge, amplifier IC with motor G
1Be voltage comparator.
During work, motor G drives friction head 9 and rotates, and produces sliding friction with surveying oil pipe 7 inwalls, because organic oil therebetween, thereby the size of friction force is directly related with the greasy property of machine oil, this friction force is the load of motor.Motor G is in electric bridge, and its load is big more, and its both end voltage is low more, when machine oil reaches serviceable life, its greasy property descends, and the friction force between the inwall of friction head 9 and survey oil pipe 7 increases, and the load of motor G increases, the last voltage drop of G is low, reaches setting value, voltage comparator ic
1Upset, the output high level is through current-limiting resistance R
5, pilot lamp LED is luminous, sends alarm.
Claims (3)
1. engine oil lifetime monitoring apparatus for internal combustion engine, comprise sensor and testing circuit, it is characterized in that: sensor comprises motor (G), friction head (9), surveys oil pipe (7), in surveying oil pipe (7), friction head (9) is set, friction head (9) is close to survey oil pipe (7) inwall, sliding contact, the rotating shaft (10) of friction head (9) is connected with motor (G), and motor (G) is connected with testing circuit.
2. engine oil lifetime monitoring apparatus for internal combustion engine as claimed in claim 1 is characterized in that: be provided with electric bridge in the testing circuit, motor (G) is located in the electric bridge, electric bridge and voltage comparator (IC
1) input end connect voltage comparator (IC
1) output terminal connect pilot lamp (LED).
3. engine oil lifetime monitoring apparatus for internal combustion engine as claimed in claim 1, it is characterized in that: the inwall corresponding position of friction head (9) and survey oil pipe (7) is all made taper in correspondence with each other, by the cone match contact, the rotating shaft (10) of friction head (9) is provided with tensioning system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410066769 CN1755349A (en) | 2004-09-29 | 2004-09-29 | Engine oil lifetime monitoring apparatus for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410066769 CN1755349A (en) | 2004-09-29 | 2004-09-29 | Engine oil lifetime monitoring apparatus for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1755349A true CN1755349A (en) | 2006-04-05 |
Family
ID=36688770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410066769 Pending CN1755349A (en) | 2004-09-29 | 2004-09-29 | Engine oil lifetime monitoring apparatus for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1755349A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101220759B (en) * | 2007-01-08 | 2010-09-01 | 通用汽车环球科技运作公司 | Oil life monitoring system for a diesel engine |
| CN102419364A (en) * | 2010-08-18 | 2012-04-18 | 通用汽车环球科技运作有限责任公司 | Automatic engine oil life determination with a factor for oil quality |
| CN112400110A (en) * | 2018-07-11 | 2021-02-23 | 瓦锡兰芬兰有限公司 | Apparatus, device and computer-implemented method for determining remaining life of engine oil in an engine |
-
2004
- 2004-09-29 CN CN 200410066769 patent/CN1755349A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101220759B (en) * | 2007-01-08 | 2010-09-01 | 通用汽车环球科技运作公司 | Oil life monitoring system for a diesel engine |
| CN102419364A (en) * | 2010-08-18 | 2012-04-18 | 通用汽车环球科技运作有限责任公司 | Automatic engine oil life determination with a factor for oil quality |
| CN102419364B (en) * | 2010-08-18 | 2015-04-15 | 通用汽车环球科技运作有限责任公司 | Automatic engine oil life determination with a factor for oil quality |
| CN112400110A (en) * | 2018-07-11 | 2021-02-23 | 瓦锡兰芬兰有限公司 | Apparatus, device and computer-implemented method for determining remaining life of engine oil in an engine |
| CN112400110B (en) * | 2018-07-11 | 2024-02-20 | 瓦锡兰芬兰有限公司 | Apparatus, device and computer-implemented method for determining remaining life of engine oil in an engine |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |