CN107907335A - A kind of performance testing device of rebreather of engine - Google Patents

A kind of performance testing device of rebreather of engine Download PDF

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Publication number
CN107907335A
CN107907335A CN201710938785.0A CN201710938785A CN107907335A CN 107907335 A CN107907335 A CN 107907335A CN 201710938785 A CN201710938785 A CN 201710938785A CN 107907335 A CN107907335 A CN 107907335A
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China
Prior art keywords
pressure
crankcase
simulation
rebreather
testing device
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Application number
CN201710938785.0A
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Chinese (zh)
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CN107907335B (en
Inventor
文洋
宋现浩
景国玺
李鹏
兰银在
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China North Engine Research Institute Tianjin
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China North Engine Research Institute Tianjin
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00Testing of engines

Abstract

The present invention provides a kind of performance testing device of rebreather of engine, including mechanical load system, pressure-loaded system, temperature loading system and control system, mechanical load system is mainly made of servomotor, simulation crankcase, simulation bent axle, servomotor is connected with the simulation bent axle in simulation crankcase, pressure-loaded system is mainly made of air compressor, pressure stabilizing cavity, pressure regulator valve and pressure sensor, and air compressor, pressure stabilizing cavity, pressure regulator valve are connected in series on simulation crankcase;Hot loading system is mainly made of heating coil, temperature sensor.The present invention has the advantage that:The parameters such as crankcase waste gas pressure, oil temperature and the speed of crankshaft under different operating modes can be accurately simulated, truly reflect the actual working state of respirator;The engine crankcase environment of different cylinder numbers can be simulated by replacing nonstandard bent axle, there is preferable versatility.

Description

A kind of performance testing device of rebreather of engine
Technical field
The invention belongs to rebreather of engine design field, is surveyed more particularly, to a kind of performance of rebreather of engine Have a try experiment device.
Background technology
Respirator is a kind of critical component of engine crankshaft ventilation system, to ensure that engine health operating plays Important function.Respirator poor-performing or matching is bad can cause that respirator bleed is serious, oil consumption is big, crankcase waste gas The problems such as pressure is high, will seriously affect the performance of engine.In addition, crankcase waste gas exhaust does not also result in the water in exhaust gas freely Dividing makes lubricating oil blushing occur, and then influences the lubrication of each component, accelerates concentrated wear, and influence engine uses the longevity Life.Therefore, the design of respirator is increasingly paid attention to matching by designer.In order to the excellent of accurate evaluation respirator performance It is bad, design the suitable respirator of matching for engine, it is necessary to experiment is tested for the property to it.
At present the performance test of respirator mainly using carry complete machine tested, but this method exist time-consuming, The shortcomings of equipment requirement is high, experimentation cost is high, environmental-protecting performance is poor.
The content of the invention
In view of this, can be accurate the present invention is directed to propose a kind of performance testing device of rebreather of engine The parameters such as crankcase waste gas pressure, oil temperature and the speed of crankshaft under different operating modes are simulated, truly reflect the reality of respirator Border working status.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way:
A kind of performance testing device of rebreather of engine, including mechanical load system, pressure-loaded system, temperature Loading system and control system, the mechanical load system, pressure-loaded system, temperature loading system are by control system control System.
Further, mechanical load system is mainly made of servomotor, simulation crankcase, simulation bent axle, servomotor It is connected with one end of the simulation bent axle in simulation crankcase, servomotor is connected by conducting wire with control system.
Further, pressure-loaded system is mainly made of air compressor, pressure stabilizing cavity, pressure regulator valve and pressure sensor, Air compressor, pressure stabilizing cavity, pressure regulator valve are connected in series on simulation crankcase, and pressure sensor is assemblied in simulation crankcase, Air compressor, pressure regulator valve, pressure sensor are connected by conducting wire with control system.
Further, hot loading system is mainly made of heating coil, temperature sensor, by heating coil, temperature sensing Device is assemblied in simulation crankcase, and heating coil and temperature sensor are connected by conducting wire with control system.
Further, control system is mainly made of switch board.
Further, the side for simulating crankcase is equipped with the interface for being used for connecting respirator to be measured.
Relative to the prior art, the present invention has the advantage that:
(1) parameters such as crankcase waste gas pressure, oil temperature and the speed of crankshaft under different operating modes can be accurately simulated, More truly reflect the actual working state of respirator.
(2) working status of the nonstandard bent axle simulation bent axle in body is driven using motor, can by replacing nonstandard bent axle The engine crankcase environment of different cylinder numbers is simulated, there is preferable versatility.
(3) also have the advantages that simple in structure, convenient for disassembly and assembly, experiment it is time-consuming it is short, cost is low, noise is small, pollution-free.
Brief description of the drawings
The attached drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention Apply example and its explanation is used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is that respirator performance testing device described in the embodiment of the present invention totally forms figure;
Fig. 2 is respirator performance testing device fundamental diagram described in the embodiment of the present invention.
Description of reference numerals:
1- servomotors;2- simulates crankcase;3- simulates bent axle;4- air compressors;5- pressure stabilizing cavities;6- pressure regulator valves;7- Switch board;8- pressure sensors;9- respirators;10- temperature sensors;11- heating coils.
Embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the present invention can phase Mutually combination.
Below with reference to the accompanying drawings and the present invention will be described in detail in conjunction with the embodiments.
A kind of performance testing device of rebreather of engine, including mechanical load system, pressure-loaded system, temperature Loading system and control system,
Mechanical load system is mainly made of servomotor 1, simulation crankcase 2, simulation bent axle 3, and servomotor 1 is with being mounted in One end of simulation bent axle 3 in simulation crankcase 2 is connected.
Pressure-loaded system is mainly made of air compressor 4, pressure stabilizing cavity 5, pressure regulator valve 6 and pressure sensor 8, air pressure Contracting machine 4, pressure stabilizing cavity 5, pressure regulator valve 6 are connected in series on simulation crankcase 2, and pressure sensor 8 is assemblied in simulation crankcase.
Hot loading system is mainly made of heating coil 11, temperature sensor 10, by heating coil 11, temperature sensor 10 It is assemblied in simulation crankcase 2.
Control system is mainly made of switch board 7, by servomotor 1, heating coil 11, temperature sensor 10, air pressure Contracting machine 4, pressure regulator valve 6, pressure sensor 8 are connected by conducting wire with switch board 7.
As shown in Fig. 2, the principle and the course of work of the respirator performance testing device are as follows:
Experiment respirator 9 is mounted on experimental rig, is connected with simulation crankcase 2 by pipeline.During experiment, pass through first Switch board 7 controls heating coil 11 to heat the fluid simulated in crankcase 2 and adjusts temperature, makes 2 inner fluid of simulation crankcase Temperature reaches predetermined temperature;After oil liquid temperature reaches stable state, control servomotor 1 drives simulation bent axle 3 to rotate, and reaches predetermined After revolution, air compressor 4 is started as injection air pressure in simulation crankcase 2 by control system, it is anti-by pressure sensor 8 The pressure simulated inside crankcase 2 is reached predetermined value by feedback, control pressure regulator valve 6, and simulating will simulate very at this time inside crankcase 2 Oil gas admixture inside real state lower crankcase, mixed oil gas will enter subject respirator 9 by simulating crankcase 2 In, Oil-gas Separation is carried out by respirator 9, the fluid after separation can be flowed back in simulation crankcase 2.Through testing after a while Afterwards, the Oil-gas Separation ability of designed respirator 9 can be tested, support is provided with improving for the design of respirator 9.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention With within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.

Claims (6)

  1. A kind of 1. performance testing device of rebreather of engine, it is characterised in that:Including mechanical load system, pressure-loaded System, temperature loading system and control system, the mechanical load system, pressure-loaded system, temperature loading system are by control System control processed.
  2. 2. the performance testing device of rebreather of engine according to claim 1, it is characterised in that:Mechanical load system System is mainly made of servomotor, simulation crankcase, simulation bent axle, servomotor and the simulation bent axle in simulation crankcase One end be connected, servomotor is connected by conducting wire with control system.
  3. 3. the performance testing device of rebreather of engine according to claim 2, it is characterised in that:Pressure-loaded system System is mainly made of air compressor, pressure stabilizing cavity, pressure regulator valve and pressure sensor, air compressor, pressure stabilizing cavity, pressure regulator valve series connection It is connected on simulation crankcase, pressure sensor is assemblied in simulation crankcase, air compressor, pressure regulator valve, pressure sensor It is connected by conducting wire with control system.
  4. 4. the performance testing device of rebreather of engine according to claim 2, it is characterised in that:Hot loading system Mainly it is made of, heating coil, temperature sensor is assembled in simulation crankcase, heating heating coil, temperature sensor Coil and temperature sensor are connected by conducting wire with control system.
  5. 5. the performance testing device of rebreather of engine according to claim 1, it is characterised in that:Control system master To be made of switch board.
  6. 6. the performance testing device of rebreather of engine according to claim 2, it is characterised in that:Simulate crankcase Side be equipped with and be used to connect the interface of respirator to be measured.
CN201710938785.0A 2017-09-30 2017-09-30 Performance test device of engine respirator Active CN107907335B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710938785.0A CN107907335B (en) 2017-09-30 2017-09-30 Performance test device of engine respirator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710938785.0A CN107907335B (en) 2017-09-30 2017-09-30 Performance test device of engine respirator

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CN107907335A true CN107907335A (en) 2018-04-13
CN107907335B CN107907335B (en) 2020-06-30

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109915231A (en) * 2019-04-10 2019-06-21 广西玉柴机器股份有限公司 Spark ignition type engine with supercharger closed crankcase ventilation system
CN112523836A (en) * 2020-11-09 2021-03-19 广西玉柴机器股份有限公司 Method and device capable of preventing engine oil of gas engine from emulsifying

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EP2388448A1 (en) * 2010-05-18 2011-11-23 DBK David + Baader GmbH Method and device for controlling an anti-frosting system of a blow-by valve
CN202195946U (en) * 2011-08-30 2012-04-18 杭州电子科技大学 Test unit for gas-oil separator of diesel engine for automobiles
CN202732114U (en) * 2012-07-30 2013-02-13 康士伯控制系统(上海)有限公司 Marine main diesel engine bearing wear monitoring system
CN103267614A (en) * 2013-05-28 2013-08-28 徐州徐工挖掘机械有限公司 Oil leaking detection device of engine transmission case of hydraulic excavator
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CN205300933U (en) * 2016-01-19 2016-06-08 长春工程学院 Internal -combustion engine piston surface oil film testing platform
CN106124182A (en) * 2016-08-04 2016-11-16 宁波里尔汽车技术有限公司 A kind of oil-gas separating device for engine assay device and method
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109915231A (en) * 2019-04-10 2019-06-21 广西玉柴机器股份有限公司 Spark ignition type engine with supercharger closed crankcase ventilation system
CN112523836A (en) * 2020-11-09 2021-03-19 广西玉柴机器股份有限公司 Method and device capable of preventing engine oil of gas engine from emulsifying

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