CN206208758U - Measurement apparatus of the engine outlet containing oil level - Google Patents
Measurement apparatus of the engine outlet containing oil level Download PDFInfo
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- CN206208758U CN206208758U CN201621345444.XU CN201621345444U CN206208758U CN 206208758 U CN206208758 U CN 206208758U CN 201621345444 U CN201621345444 U CN 201621345444U CN 206208758 U CN206208758 U CN 206208758U
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- pipe
- measurement
- gas
- optical receiver
- measurement pipe
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Abstract
The utility model discloses a kind of measurement apparatus of engine outlet containing oil level, including：Measurement pipe, it is T-shaped pipe, and the middle part mouth of pipe of the T-shaped pipe is gas access, and the two ends of T-shaped pipe are gas vent；Heated at constant temperature pipe, its heating-up temperature can adjust, and heated at constant temperature pipe is connected with gas access；Two wind curtain machines, the side of its gas vent for being separately positioned on measurement pipe two ends, gas outlet of the wind curtain machine by the air-flow of blowout at measurement pipe two ends forms air curtain；Light source, it is used for being arranged near the gas vent of measurement pipe one end；And optical receiver, it is used for being arranged near the gas vent of the measurement pipe other end, received by optical receiver after the measured pipe of light that light source sends, optical receiver accounts for volume concentration of gas phase percentage relation curve and accounts for volume concentration of gas phase percentage showing corresponding machine oil according to light tight rate N=100* (1 B/A) with machine oil.The measurement apparatus simple structure, it is simple to operate, the need for certainty of measurement can meet research and development.
Description
Technical field
The utility model is related to engine detection technique field, measurement of more particularly to a kind of engine outlet containing oil level
Device.
Background technology
In engine operation process, combustion chamber point high temperature and high pressure gas can by piston, cylinder jacket and piston ring it
Between gap enter crankcase and flow out engine after mixing with the machine oil particle of crankcase.These engine interior produce,
The gas for discharging with part machine oil particle and finally engine is referred to as engine outlet.Engine outlet containing machine oil number be
A critically important research and development Con trolling index, engine outlet was measured in the past to be needed to purchase the special filter tank of import containing oil level, this
The filter core for planting filter tank is the strong absorbent of machine oil, and the machine oil that absorbable outlet contains simultaneously contrasts front and rear filter core weight by weighing not
With obtaining contained oil level in outlet.Each needs more than 2000 Euros to this filter tank, and filter core is used only once, measurement expense
Costly.And when measuring, engine outlet will completely pass through filter core, and going out atmidometer can become big, cause engine interior pressure
Power increases, and can have an impact to the accuracy of result of the test.
The information for being disclosed in the background section is merely intended to increase the understanding to general background of the present utility model, and
It is not construed as recognizing or implying in any form that the information structure has been existing well known to persons skilled in the art
Technology.
Utility model content
The purpose of this utility model is to provide a kind of measurement apparatus of engine outlet containing oil level, simple structure, behaviour
Make simple, the need for certainty of measurement can meet research and development.
To achieve the above object, the utility model provides a kind of measurement apparatus of engine outlet containing oil level, including：
Measurement pipe, it is T-shaped pipe, and the middle part mouth of pipe of the T-shaped pipe is gas access, and the two ends of T-shaped pipe are gas vent, are set in measurement pipe
Put temperature sensor, pressure sensor and flow sensor；Heated at constant temperature pipe, its heating-up temperature can adjust, heated at constant temperature pipe with
Gas access connects, and the temperature that heated at constant temperature pipe is used for the gas by gas access is entered keeps constant；Two wind curtain machines, its point
The side of the gas vent at measurement pipe two ends is not arranged on, and wind curtain machine passes through the gas vent of the air-flow at measurement pipe two ends of blowout
Place forms air curtain；Light source, it is used for being arranged near the gas vent of measurement pipe one end；And optical receiver, it is used for setting
Near the gas vent of the measurement pipe other end, received by optical receiver after the measured pipe of light that light source sends, work as measurement pipe
It is interior full of air when, the luminous flux that optical receiver receives light source is A, when in measurement pipe full of containing machine oil particle fog when,
The luminous flux that optical receiver receives light source is B, then optical receiver accounts for gas according to light tight rate N=100* (1-B/A) and machine oil
Body volume content percentage relation curve accounts for volume concentration of gas phase percentage showing corresponding machine oil.
Preferably, temperature sensor, pressure sensor and flow sensor are set in measurement pipe.
Preferably, light source is incandescent lamp or green LED.
Compared with prior art, the utility model has the advantages that：
1. simple structure, number of parts is few, but oneself buying assembling parts, and equipment can Reusability, cost of equipment and survey
Amount expense is all very low；
2. equipment can automatically show measurement parameter, be not required to precision balance and weigh, simple to operate；
3. the result measured after demarcating compares with import measurement filter tank, and deviation is no more than 1.5%, and certainty of measurement is higher, energy
Meet research and development be to engine outlet measuring accuracy containing oil level the need for (as long as in 3% deviation can)；
4. the measurement device engine outlet is simpler containing oil level, more saves money, and precision can also meet research and development needs.
Brief description of the drawings
Fig. 1 is the measurement apparatus schematic diagram containing oil level according to engine outlet of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail, it is to be understood that this practicality
New protection domain is not limited by specific embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " including " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other units
Part or other parts.
As shown in figure 1, measurement of a kind of engine outlet containing oil level according to the utility model specific embodiment is filled
Put, including measurement pipe 2, heated at constant temperature pipe 1, two wind curtain machines 3, light source 4 and optical receivers 5, wherein measurement pipe 2 is T-shaped pipe,
The middle part mouth of pipe of the T-shaped pipe is gas access, and the two ends of T-shaped pipe are gas vent.The heating-up temperature of heated at constant temperature pipe 1 is adjustable
Whole, heated at constant temperature pipe 1 is connected with gas access, and the temperature that heated at constant temperature pipe 1 is used for the gas by gas access is entered keeps permanent
Fixed, two wind curtain machines 3 are separately positioned on the side of the gas vent at the two ends of measurement pipe 2, and wind curtain machine 3 is being surveyed by the air-flow for blowing out
The gas outlet at the two ends of buret 2 forms air curtain, and light source 4 is used for being arranged near the gas vent of the one end of measurement pipe 2, light-receiving
Device 5 is used for being arranged near the gas vent of the other end of measurement pipe 2, by optical receiver after the measured pipe 2 of the light that light source 4 sends
5 receive, and when in measurement pipe 2 full of air, the luminous flux that optical receiver 5 receives light source 4 is A, is contained when being full of in measurement pipe 2
During the fog of machine oil particle, the luminous flux that optical receiver 5 receives light source 4 is B, then optical receiver 5 is according to light tight rate N=
100* (1-B/A) accounts for volume concentration of gas phase percentage relation curve and accounts for volume concentration of gas phase hundred showing corresponding machine oil with machine oil
Divide ratio.
Research shows that machine oil can have barrier effect to light contained by engine outlet, when machine oil contained by engine outlet
When grain is more, the light tight rate of outlet is just high, and when machine oil particle is less contained by outlet, the light tight rate of outlet is just low.Outlet
The amount (namely machine oil particle accounts for engine outlet percent by volume) of contained machine oil particle has corresponding with the light tight rate of outlet
Relation, (the namely machine oil of oil level contained by engine outlet corresponding can be known by the light tight rate for measuring engine outlet
Particle accounts for engine outlet percent by volume).When machine oil particle accounts for the timing of engine outlet percent by volume one, go out gas velocity
Speed does not influence on light tight rate.Measurement apparatus of the engine outlet of the present embodiment containing oil level, set according to above-mentioned principle
Meter, after measuring light tight rate, can obtain machine oil particle and account for engine outlet percent by volume, then measure out throughput,
The engine oil quality (volume is multiplied by density after obtaining) that unit interval outlet is taken away can be drawn by calculating, total oil consumption is used
Subtract the oil level that outlet is taken away, obtain burning consumption oil level, the measurement of these numerical value, for research and development provide it is more more detailed
Thin parameter.
In such scheme, before heated at constant temperature pipe 1 is fixed on the entrance of measurement pipe 2, for the gas for ensureing to enter in measurement pipe 2
Temperature is constant, and when the gas for entering heated at constant temperature pipe is not up to the temperature of setting, heating tube can be heated automatically, reach setting
Heating can be automatically stopped after temperature.The effect of heated at constant temperature pipe 1 is to prevent condensed water from disengaging, and reduces tested gas temperature fluctuation,
And correct compensation is made to temperature change.In the present embodiment, temperature is maintained at 110 degree, and engine goes out when can prevent low temperature
Water condensation in gas out forms fog, influences the accuracy of measurement.Because machine oil boiling point is more than 200 degree, so 110 degree
When, the machine oil major part in engine outlet is present in engine outlet with mist particles.Wind curtain machine 3 is arranged on measurement
Near the port of export of pipe 2, the engine outlet for stopping height temperate zone machine oil particle blows to light source 4 and optical receiver 5, meanwhile,
Air curtain can also drive the flowing of gas in measurement pipe 2, reduce gas flow resistance in measurement pipe 2, reduce the flow resistance of measurement pipe 2
Influence to measurement accuracy.Light source 4 be arranged on measurement pipe 2 exit end, the light that it sends can be by measurement pipe 2 inside
Cavity reaches other end.Optical receiver 5 is arranged on the other end (from the different one end of light source 4) of the outlet of measurement pipe 2, and it can connect
The light by the internal cavities of measurement pipe 2 that light source 4 sends is received, optical receiver is typically made up of photocell or photodiode.
According to existing equipment, engine outlet can be carried out percent by volume and corresponding light tight rate containing oil level
Accurate measurement, and draw the relationship of the two curve.According to the relation, optical receiver in the measurement apparatus that can implement to this it is aobvious
Show that scale is demarcated.Specifically, (it is full of pure air) when the inner chamber of measurement pipe 2 is full impregnated light state, the light of light source 4 passes through
The luminous flux that measurement pipe 2 full of pure air reaches optical receiver 5 is A, and optical receiver 5 shows 0% (zero-bit).Work as measurement pipe
When 2 inner chambers are complete impermeable light states (closing light source), the luminous flux of optical receiver 5 is 0, and the luminous flux for measuring is 0, and light connects
Receive device 5 and show 99.9% (full scale).When the inner chamber of measurement pipe 2 is full of the fog for containing machine oil particle, the luminous flux for measuring is B,
Then light transmittance T=B/A*100, light tight rate N=100-T=(1-B/A) * 100.By demarcating light tight rate, optical receiver 5
Display scale can be mapped with corresponding outlet (percent by volume) containing oil level.
Temperature sensor, pressure sensor and flow sensor (figure are set as a kind of preferred embodiment, in measurement pipe 2
Not shown in), the gas temperature of measurable entrance measurement pipe 2, pressure and flow.If into measurement pipe 2 air outlet temperature with
Pressure is excessive with pressure (110 degree and normal pressure) deviation with the temperature of the state of demarcation, then need by PV=mRT formula, flow
Flow when being converted to the temperature of demarcation state with pressure.
Used as a kind of preferred embodiment, light source 4 is generally incandescent lamp or green LED.
When the specifically used engine outlet of implementation contains the measurement apparatus of oil level, carry out in accordance with the following steps：
Step 1, this measurement apparatus is installed, rebreather of engine outlet accesses the entrance of this measurement apparatus.Entrance constant temperature
Heating tube 1 is adjusted to uniform temperature (being traditionally arranged to be 110 degree).
Step 2, engine start by specific operation operation certain hour (usually being run 24 hours in rated point), and survey
Consumption of lubricating oil (total oil level m of gauging drain panAlways)。
Total oil level mAlwaysSpecific method of testing it is as follows：
1 is initially added oil level weighing
1.1 get out engine, add new machine oil, and machine oil pasta is arranged on dipstick maximum scale.
1.2 with 80% rated speed and 30% rated load warming-up.Until oil temperature stabilization is at 90 DEG C~95 DEG C, cooling
Liquid temperature degree reaches thermostat design work temperature.Preferable warm-up period should in 20 points of kinds, if desired can with rotating speed high,
High load capacity achieves the goal (but this state should be kept in experiment after this).
1.3 made engine drop to idling and stop in 15 seconds.When engine is static, slowly turning crankshaft, in 1min
Within clockwise bent axle one enclose and continue clockwise to the 1st cylinder top dead centre, start to drain the oil when this 1min is ended.
1.4 allow drain the oil 15 points (± 20 seconds), are then reinstalled purge cock.
The 1.5 gross weight W for weighing the machine oil, container and funnel released1, oil is refunded into engine, then weigh and fail evacuation
The gross weight W of machine oil, container and funnel2, the difference (W of weight twice1-W2), the oil level W for as addingi。
2 rotating speeds and load test step
2.1 start engine, engine is reached rated speed and load condition rapidly.Control oil temperature meets this
The design temperature of speed/load condition.Coolant temperature meets thermostat design work temperature.
2.2 continuously run 24h, and engine speed and load are dropped to 80% rated speed and 30% rated load after 24h,
And make oil temperature stabilization at 90 DEG C~95 DEG C, the cold time should be in 10min, and coolant temperature stabilization is in thermostat design
Operating temperature.Cold purpose can be reached with the slow-speed of revolution, underload if desired.
3 measurements for ultimately joining oil level
3.1 made engine be down to idling and stop in 15 seconds.When engine is static, slowly turning crankshaft, 1min with
Interior clockwise bent axle one is enclosed and continues clockwise to the 1st cylinder top dead centre, starts to drain the oil when this 1min is ended.
3.2 allow drain the oil 15 minutes (± 20 seconds).Then it is reinstalled purge cock.
3.3 weigh, the gross weight W of the machine oil, container and funnel released after being tested3, W3With W2Difference be experiment after put
The oil level W for going out0, machine oil total flow mAlways=Wi-W0。
Step 3, carry out engine oil consumption test when, that is, rebreather of engine whole outlets all flow through this measurement apparatus,
Temperature T is read in measurement apparatus timing0, pressure P0, flow Q0And light tight rate N.General temperature all sets (110 degree), and pressure is
Normal pressure, light tight rate is typically also stationary value, changes little.
Step 4, find average light tight rate NAveragelyCorresponding machine oil accounts for volume concentration of gas phase percentage, is recorded as ＆Machine oil, should
Numerical value and gas flow Q0Multiplication can obtain the machine oil volume that unit interval outlet is taken away, i.e.,
VMachine oil=＆Machine oil*Q0
The numerical value is multiplied by machine oil density pMachine oilCan obtain the engine oil quality M that unit interval outlet is taken awayMachine oil, i.e.,
MMachine oil=VMachine oil*ρMachine oil
Multiplied by with testing time t, so that it may to draw outlet is taken away during test total oil level mMachine oil, i.e.,
mMachine oil=MMachine oil*t
If step 5, into measurement pipe 2 air outlet temperature and pressure and the state of demarcation (110 degree and normal of temperature and pressure
Pressure) deviation is excessive, then needs by PV=mRT formula, flow during the temperature and pressure of flow rate conversion to demarcation state.
Step 6, test can simultaneously obtain total oil level m of the engine consumption measured from oil sumpAlwaysAnd respirator is taken away
Oil level mMachine oil.2 parts are subtracted each other and obtain the oil level m that engine interior is consumed1(machine oil for mainly burning), i.e. m1=
mAlways—mMachine oil。
To sum up, measurement apparatus of the engine outlet of the present embodiment containing oil level, by measuring the impermeable of engine outlet
Light rate, and nominal data is combined, numerical value of the engine outlet containing oil level is obtained, and can indirectly be calculated what burning was consumed
Oil level, optimizes so as to more targeted to engine relevant design, improves the R ＆ D Level of engine.The measurement
The need for the certainty of measurement of device can meet research and development, and measuring apparatus simple structure, expense is low, operates also very simple.
The foregoing description to specific illustrative embodiment of the present utility model be in order to illustrate and illustration purpose.These
Description is not wishing to for the utility model to be defined to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can carry out
It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explaining certain principles of the present utility model
And its practical application, so that those skilled in the art can realize and utilize a variety of examples of the present utility model
Property embodiment and a variety of selections and change.Scope of the present utility model is intended to by claims and its waits similar shape
Formula is limited.
Claims (3)
1. a kind of engine outlet contains the measurement apparatus of oil level, it is characterised in that including：
Measurement pipe, it is T-shaped pipe, and the middle part mouth of pipe of the T-shaped pipe is gas access, and the two ends of the T-shaped pipe are gas vent；
Heated at constant temperature pipe, its heating-up temperature can adjust, and the heated at constant temperature pipe is connected with the gas access, the heated at constant temperature
The temperature that pipe is used for the gas by the gas access is entered keeps constant；
Two wind curtain machines, the side of its gas vent for being separately positioned on the measurement pipe two ends, the wind curtain machine is by blowout
Air-flow the measurement pipe two ends gas outlet formed air curtain；
Light source, it is used for being arranged near the gas vent of described measurement pipe one end；And
Optical receiver, it is used for being arranged near the gas vent of the measurement pipe other end, and the light that the light source sends passes through
Received by the optical receiver after the measurement pipe, when air is full of in the measurement pipe, the optical receiver receives institute
The luminous flux for stating light source is A, and when in the measurement pipe full of the fog containing machine oil particle, the optical receiver receives described
The luminous flux of light source is B, then the optical receiver accounts for volume concentration of gas phase according to light tight rate N=100* (1-B/A) and machine oil
Percentage relation curve accounts for volume concentration of gas phase percentage showing corresponding machine oil.
2. engine outlet according to claim 1 contains the measurement apparatus of oil level, it is characterised in that in the measurement pipe
Temperature sensor, pressure sensor and flow sensor are set.
3. engine outlet according to claim 1 contains the measurement apparatus of oil level, it is characterised in that the light source is white
Vehement lamp or green LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621345444.XU CN206208758U (en) | 2016-12-08 | 2016-12-08 | Measurement apparatus of the engine outlet containing oil level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621345444.XU CN206208758U (en) | 2016-12-08 | 2016-12-08 | Measurement apparatus of the engine outlet containing oil level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206208758U true CN206208758U (en) | 2017-05-31 |
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ID=58746458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621345444.XU Expired - Fee Related CN206208758U (en) | 2016-12-08 | 2016-12-08 | Measurement apparatus of the engine outlet containing oil level |
Country Status (1)
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| CN (1) | CN206208758U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546563A (en) * | 2016-12-08 | 2017-03-29 | 广西玉柴机器股份有限公司 | Measurement apparatus of the electromotor outlet containing oil level |
-
2016
- 2016-12-08 CN CN201621345444.XU patent/CN206208758U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546563A (en) * | 2016-12-08 | 2017-03-29 | 广西玉柴机器股份有限公司 | Measurement apparatus of the electromotor outlet containing oil level |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170531 Termination date: 20211208 |