CN1869688A - Device for monitoring viscosity of engine lubricating oil - Google Patents
Device for monitoring viscosity of engine lubricating oil Download PDFInfo
- Publication number
- CN1869688A CN1869688A CN 200610051710 CN200610051710A CN1869688A CN 1869688 A CN1869688 A CN 1869688A CN 200610051710 CN200610051710 CN 200610051710 CN 200610051710 A CN200610051710 A CN 200610051710A CN 1869688 A CN1869688 A CN 1869688A
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- CN
- China
- Prior art keywords
- motor
- lubricating oil
- casing
- impeller
- display circuit
- Prior art date
- 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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- Lubrication Of Internal Combustion Engines (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention is an engine lubricant viscosity monitoring device, comprising sensor, and detection display circuit, where the sensor comprises casing, motor and PTC heater, and the casing is a semi-sealed cylinder made with oil hole and the motor and PTC heater are arranged in the cavity of the casing, the shaft of the motor is equipped with impeller, fixed vanes is arranged in the corresponding position in the cavity of the casing to the impeller; the motor is connected with one arm of resistor bridge in the detection display circuit, the midpoint of the resistor bridge is connected with meter head. Because carbon chain of the lubricant breaks under high temperature action with the passage of use time, its viscosity reduces, the motor load reduces, the current reduces, and the meter head indirectly displays lubricating property of the lubricant by comparison of resistor bridge, thus achieving on-line monitoring purpose and assuring normal usage of the engine.
Description
Technical field
The present invention relates to engine, is the device that is used to detect lubricants performance.
Background technology
Lubricating oil plays a part lubricated in engine, and engine makes machine breakdown lacking under the situation of lubricating oil the fault that can produce overheated, scuffing of cylinder bore, parts heavy wear.At present, mainly be that the pressure of lubricating oil is monitored in engine, when oil pressure is reduced to certain value, indication gives a warning.And lubricating oil is after using certain hour, and its lubricity descends, and can the serviceability of engine be exerted an influence, and can produce the fault of overheated, scuffing of cylinder bore, parts heavy wear when serious, makes machine breakdown.Present method is regularly lubricating oil to be changed, or rule of thumb judges the quality of lubricating oil, is easy to generate mistake and forgets, and influences the use of engine.
Summary of the invention
The object of the invention is to provide a kind of and automatically lubricating oil is carried out device for monitoring, understands lubricants performance at any time, to guarantee the normal use of engine.
The solution of the present invention is: a kind of device for monitoring viscosity of engine lubricating oil, comprise sensor, detect display circuit, its sensor comprises housing, motor, ptc heater, housing is one and opens semiclosed jar that is shaped on oil through, be provided with motor and ptc heater in its inner chamber, on the axle of motor impeller is housed, position corresponding with impeller in the housing inner chamber is shaped on fixed blade; Motor is electrically connected with the detection display circuit.
Detect in the display circuit, motor is connected on the arm of resistance bridge, is connected with gauge outfit between two mid points of resistance bridge.
Advantage of the present invention is: because lubricating oil is along with the passing of service time, high temperature action causes its carbochain fracture, cause viscosity to descend, the load of motor is reduced, and electric current reduces, by the comparison of electric bridge, on gauge outfit, show, demonstrate the greasy property of lubricating oil indirectly, reach the purpose of on-line monitoring, guaranteed the normal use of engine.
Description of drawings
The invention will be further described with embodiment with reference to the accompanying drawings below.
Fig. 1 is the sensor construction synoptic diagram.
Fig. 2 is circuit theory diagrams of the present invention.
Among Fig. 1,1 plug cock, 2 motors, 3 impellers, 4PTC well heater, 5 oil throughs, 6 fixed blades, 7 housings, 8 electrodes, 71 housing overcoats wherein, 72 insulation sleeves, cover in 73; Among Fig. 2, IC integrated regulator, C filter capacitor, G gauge outfit, R1, R2, R3, R4 resistance.
Embodiment
In conjunction with shown in Figure 1, the sensor of embodiment comprises housing 7, motor 2, ptc heater 4, housing 7 is one and opens semiclosed jar that is shaped on oil through 5, form by housing overcoat 71, insulation sleeve 72, interior cover 73, be provided with motor 2 and ptc heater 4 in its inner chamber, on the axle of motor 2 impeller 3 is housed, the position corresponding with impeller is shaped on fixed blade 6 in the housing inner chamber, sensor is made the oil rule shape, and the upper end is provided with plug cock 1, can be installed in the position of the former oil rule of engine during use.
In conjunction with Fig. 2, integrated regulator IC and filter capacitor C form mu balanced circuit, and resistance R 1, R2, R3 and motor 2 are formed resistance bridge, and motor 2 is connected on the arm of resistance bridge, is connected with gauge outfit G and current-limiting resistance R4 thereof between two mid points of resistance bridge.
During work, motor 2 rotates, and impeller 3 stirs lubricating oil, and its payload is directly proportional with the viscosity of lubricating oil.
When viscosity was big, motor 2 loads were big, and motor 2 both end voltage are low in resistance bridge, and the potential difference (PD) between resistance bridge two mid points is big; When viscosity hour, motor 2 loads are little, motor 2 both end voltage height in resistance bridge, and the potential difference (PD) between resistance bridge two mid points is little.
Thus, the reading of gauge outfit G can reflect the viscosity size of lubricating oil indirectly, because the greasy property of lubricating oil is directly relevant with its viscosity size, thereby can reflect the greasy property of lubricating oil.
Claims (2)
1. device for monitoring viscosity of engine lubricating oil, comprise sensor, detect display circuit, it is characterized in that: sensor comprises housing (7), motor (2), ptc heater (4), housing (7) is one and opens semiclosed jar that is shaped on oil through (5), be provided with motor (2) and ptc heater (4) in its inner chamber, on the axle of motor (2) impeller (3) is housed, the position corresponding with impeller is shaped on fixed blade (6) in the housing inner chamber, and motor (2) is electrically connected with the detection display circuit.
2. device for monitoring viscosity of engine lubricating oil as claimed in claim 1 is characterized in that: detect in the display circuit, motor (2) is connected on the arm of resistance bridge, is connected with gauge outfit (G) between two mid points of resistance bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610051710 CN1869688A (en) | 2006-05-30 | 2006-05-30 | Device for monitoring viscosity of engine lubricating oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610051710 CN1869688A (en) | 2006-05-30 | 2006-05-30 | Device for monitoring viscosity of engine lubricating oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1869688A true CN1869688A (en) | 2006-11-29 |
Family
ID=37443407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610051710 Pending CN1869688A (en) | 2006-05-30 | 2006-05-30 | Device for monitoring viscosity of engine lubricating oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1869688A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101281110B (en) * | 2007-03-12 | 2011-06-08 | 通用汽车环球科技运作公司 | Engine oil viscosity diagnostic systems and methods |
| CN101363822B (en) * | 2007-08-10 | 2012-08-08 | 中国石油天然气股份有限公司 | Transparent parallel plate device for researching viscous fingering of fracture acidizing fluid |
-
2006
- 2006-05-30 CN CN 200610051710 patent/CN1869688A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101281110B (en) * | 2007-03-12 | 2011-06-08 | 通用汽车环球科技运作公司 | Engine oil viscosity diagnostic systems and methods |
| CN101363822B (en) * | 2007-08-10 | 2012-08-08 | 中国石油天然气股份有限公司 | Transparent parallel plate device for researching viscous fingering of fracture acidizing fluid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |