CN202451313U - Accessory supercharging system for diesel rack testing - Google Patents
Accessory supercharging system for diesel rack testing Download PDFInfo
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- CN202451313U CN202451313U CN 201120476186 CN201120476186U CN202451313U CN 202451313 U CN202451313 U CN 202451313U CN 201120476186 CN201120476186 CN 201120476186 CN 201120476186 U CN201120476186 U CN 201120476186U CN 202451313 U CN202451313 U CN 202451313U
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Abstract
The utility model belongs to the technical field of diesel testing, and provides an accessory supercharging system for diesel rack testing, which is arranged on a communicating pipeline of a supercharger (15) and an intercooler (14) in a diesel air inlet system. The accessory supercharging system mainly includes an air filter I (1), a first-stage pressure regulating valve (2), a surge tank (3), an air bleeder (4), a second-stage pressure regulating valve (5) and a throttling valve (6), wherein the inlet of the air filter I (1) is communicated with a high-pressure air inlet system; the air filter I (1) is communicated with the first-stage pressure regulating valve (2); the first-stage pressure regulating valve (2) is communicated with the surge tank (3); the surge tank (3) is communicated with the air bleeder (4); the air bleeder (4) is communicated with the second-stage pressure regulating valve (5); and the second-stage pressure regulating valve (5) is communicated with the throttling valve (6). Through the adoption of the accessory supercharging system for diesel rack testing, testing time and testing cost are greatly reduced, and the working efficiency is improved.
Description
Technical field
The utility model belongs to diesel engine experimental technique field, relates generally to a kind of diesel engine bench performance test and uses the additional mechanical supercharging system.
Background technique
Exhaust turbine pressuring technology is to utilize the off-gas flows of diesel engine discharge as power, and the centrifugal blade that drives intake duct through exhaust gas turbine is exerted pressure to intake duct, and then improves the suction pressure of diesel engine and increase charge flow rate.Because exhaust turbine pressuring technology can improve the performance of diesel engine, present many manufacturers begin to be applied to exhaust turbine pressuring technology the research and development of diesel engine, promptly before suction tude, increase an exhaust-gas turbocharger.Because of the air temperature through exhaust-gas turbocharger raises, density reduces, and influences the air inlet effect, so need after the intercooler cooling, to get in the cylinder of diesel engine promptly so-called charge inter cooling technology through the air of exhaust-gas turbocharger.
Although exhaust turbine pressuring technology can improve the performance of diesel engine; But the matching problem that has exhaust-gas turbocharger and diesel engine; When the characteristic curve of exhaust-gas turbocharger and diesel engine matees when bad; Can cause the not enough and fluctuation of diesel engine intake amount and suction pressure, exhaust-gas turbocharger surge occurs and because of results such as abundant burning diesel oil machine over-emitting black exhausts, so not only influences Diesel Engine Complete Machine power character and Economy; The final life-span that influences diesel engine, cause fuel to waste in a large number, also can cause very serious destruction atmosphere environment.Along with new Abgasgesetz is more and more tighter to the requirement of diesel engine, the requirement to diesel engine all is significantly increased exhaust turbine pressuring technology to power character, Economy and the Abgasgesetz of diesel engine, and effect is obvious.Therefore diesel engine manufacturer also more and more payes attention to the match test of exhaust-gas turbocharger, has become the important step of diesel engine R&D process.
At present diesel exhaust turbosupercharger matching test method is: select an exhaust-gas turbocharger and target diesel engine to carry out the stand match test according to the parameter of target diesel engine, judge according to rig test result whether suction pressure and the charge flow rate of this exhaust-gas turbocharger design reasonable; If judge that by test result this type exhaust-gas turbocharger effect is undesirable, exhaust-gas turbocharger manufacturer improves suction pressure and charge flow rate according to test data, and then carries out match test; If test result is still undesirable, then repeat to improve exhaust-gas turbocharger or select an exhaust-gas turbocharger test in addition, up to obtaining ideal results, this method test cycle is long, and experimentation cost is high, causes the whole R&D cycle to prolong, and wastes time and energy.
The model utility content
The purpose of the utility model is to propose a kind of diesel engine bench test to use the additional mechanical supercharging system; When carrying out the Matching of Turbocharger test, be connected between pressurized machine and the intercooler, make it become effectively replenishing of diesel engine air inlet system; Can use an exhaust-gas turbocharger under match test state; Simulate multiple air inlet state, through the variation of contrast target diesel engine parameter, adjustment diesel engine state; Find optimum suction pressure and charge flow rate until diesel engine, accurate data are provided for pressurized machine improves.
The utility model is accomplished the novel task of using in fact through following technological scheme:
The additional mechanical supercharging system is used in a kind of diesel engine bench test; Described additional mechanical supercharging system is arranged in the diesel engine air inlet system on the pipeline between the pressurized machine and intercooler, mainly comprises air-strainer I, one-level pressure regulator valve, surge tank, bleed valve, secondary pressure regulator valve and throttle valve; The import of said air-strainer I is connected with the high pressure admission system; Described air-strainer I is communicated with the one-level pressure regulator valve, and the air after filtering through the air-strainer I is carried out the one-level pressure regulation; The one-level pressure regulator valve is connected with surge tank; Described surge tank is connected with bleed valve, and the pressure of being regulated in the surge tank by bleed valve makes its pressure be no more than safety limit; Bleed valve is communicated with the secondary pressure regulator valve, by the secondary pressure regulator valve air is carried out the secondary pressure regulation; Described secondary pressure regulator valve is connected with throttle valve, by the flow of throttle valve control air; The outlet of said throttle valve is connected in the diesel engine air inlet system on the pipeline between the pressurized machine and intercooler.
The connecting pipeline of throttle valve and diesel engine air inlet system is provided with and is used to detect pressure gauge I, thermometer I and the flowmeter I that is got into air pressure, temperature and the flow of diesel engine air inlet system by the additional mechanical supercharging system.
Become 30 °～45 between the pipeline of the throttle valve in the auxiliary voltage-regulating system and the connecting pipeline of diesel engine air inlet system and diesel engine air inlet system.
Being used to diesel engine provides the diesel engine air inlet system of air inlet to comprise air-strainer II, pressurized machine and intercooler; The import of said air-strainer II is connected with atmosphere, and described air-strainer II is connected with pressurized machine; Between pressurized machine and air-strainer, be provided for detecting the flowmeter II of air mass flow of pressurized machine of flowing through; Said pressurized machine is connected with intercooler, and described intercooler is connected with diesel engine; Pressure gauge III and thermometer II are set between intercooler and diesel engine.
Above-mentioned diesel engine bench test is with the method for using of additional mechanical supercharging system, and high-pressure air at first passes through the air-strainer I, filters the back by the air-strainer I and gets into the one-level pressure regulator valve; Carry out elementary pressure regulation by the one-level pressure regulator valve; Air after the pressure regulation of one-level pressure regulator valve gets into the surge tank voltage stabilizing, and monitors the pressure in the surge tank in real time by the pressure gauge II, when the surge tank internal pressure is too high; Through bleed valve surge tank is exitted, the pressure in the surge tank is remained in the safety limit; Air after the surge tank voltage stabilizing gets into the secondary pressure regulator valve and carries out the secondary pressure regulation; Air after the secondary pressure regulation gets into throttle valve, and through throttle valve air is delivered to diesel engine air inlet system, and supplies with diesel engine after the air mixing in the diesel engine air inlet system; Flowmeter I on pipeline between throttle valve and the diesel engine air inlet system is used to measure the air mass flow that the additional mechanical supercharging system gets into diesel engine; Be installed between pressurized machine and the air-strainer II the flowmeter II, be used to measure the air mass flow of pressurized machine of flowing through, through adjustment secondary pressure regulator valve and throttle valve flow and pressure with accurate control additional mechanical supercharging system entering diesel engine air inlet system air; Through installing and using of flowmeter I and flowmeter II accurately to calculate the air mass flow of final entering diesel engine; Through intake temperature and the pressure after cold in thermometer II in the diesel engine air inlet system and the pressure gauge III supervision diesel engine,, confirm whether adjustment is suitable in conjunction with the diesel engine virtual condition.
In the process of the test; Through regulating and the secondary pressure regulator valve of change additional mechanical supercharging system and the different conditions of throttle valve; Can simulate the multiple air inlet state of realizing diesel engine, and then the parameter when combining the actual open state of diesel engine, just can confirm the air inlet state of diesel engine the best.
The additional mechanical supercharging system is used in a kind of diesel engine bench test that the utility model proposes, and when carrying out the Matching of Turbocharger test, is connected between pressurized machine and the intercooler; Make it become effectively replenishing of diesel engine air inlet system, can use an exhaust-gas turbocharger under match test state, simulate multiple air inlet state; Variation through contrast target diesel engine parameter; Adjustment diesel engine state finds optimum suction pressure and charge flow rate until diesel engine, for pressurized machine improves accurate data is provided; The use of this system has significantly reduced test period and experimentation cost, has improved working efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The partial enlarged drawing of A part among Fig. 2 Fig. 1.
Among the figure: 1, air-strainer I; 2, one-level pressure regulator valve; 3, surge tank; 4, bleed valve; 5, secondary pressure regulator valve; 6, throttle valve; 7, pressure gauge II; 8, pressure gauge I; 9, thermometer I; 10, flowmeter I; 11, thermometer II; 12, diesel engine; 13, pressure gauge III; 14, intercooler; 15, pressurized machine; 16, flowmeter II; 17, air-strainer II.
Embodiment
In conjunction with accompanying drawing and specific embodiment explaining to the utility model:
As shown in Figure 1; The additional mechanical supercharging system is used in a kind of diesel engine bench test; Described additional mechanical supercharging system is arranged in the diesel engine air inlet system on the pipeline between the pressurized machine 15 and intercooler 14, mainly comprises air-strainer I 1, one-level pressure regulator valve 2, surge tank 3, bleed valve 4, secondary pressure regulator valve 5 and throttle valve 6; The import of said air-strainer I 1 is connected with the high pressure admission system; Air-strainer I 1 is communicated with one-level pressure regulator valve 2, and the air after filtering through the air-strainer I is carried out the one-level pressure regulation; One-level pressure regulator valve 2 is communicated with surge tank 3; Said surge tank 3 is connected with bleed valve 4, and the pressure of being regulated in the surge tank by bleed valve 4 makes its pressure be no more than safety limit; Bleed valve 4 is communicated with secondary pressure regulator valve 5, carries out the secondary pressure regulation by 5 pairs of air of secondary pressure regulator valve, to reach the desired pressure of diesel engine air inlet system; Secondary pressure regulator valve 5 is connected with throttle valve 9, by the flow of throttle valve air; Said throttle valve 6 is connected in the diesel engine air inlet system on the pipeline between the pressurized machine 15 and intercooler 14.
In conjunction with Fig. 2, become 30 °～45 between the pipeline of the throttle valve in the auxiliary voltage-regulating system and the connecting pipeline of diesel engine air inlet system and diesel engine air inlet system.
Being used to diesel engine provides the diesel engine air inlet system of air inlet to comprise air-strainer 17, pressurized machine 15 and intercooler 14; The import of said air-strainer II 17 is connected with atmosphere, and air-strainer 17 is connected with pressurized machine 15; Between pressurized machine 15 and air-strainer 17, be provided for detecting the flowmeter II 16 of air mass flow of pressurized machine of flowing through; Said pressurized machine 15 is connected with intercooler 14, and described intercooler 14 is connected with diesel engine 12; Pressure gauge III 13 and thermometer II 11 are set between intercooler 14 and diesel engine 12.
Above-mentioned diesel engine bench test is with the method for using of additional mechanical supercharging system, and high-pressure air at first passes through the air-strainer I, filters the back by the air-strainer I and gets into the one-level pressure regulator valve; Carry out elementary pressure regulation by the one-level pressure regulator valve; Air after the pressure regulation of one-level pressure regulator valve gets into the surge tank voltage stabilizing, and monitors the pressure in the surge tank in real time by the pressure gauge II, when the surge tank internal pressure is too high; Through bleed valve surge tank is exitted, the pressure in the surge tank is remained in the safety limit; Air after the surge tank voltage stabilizing gets into the secondary pressure regulator valve and carries out the secondary pressure regulation; Air after the secondary pressure regulation gets into throttle valve, and through throttle valve air is delivered to diesel engine air inlet system, and supplies with diesel engine after the air mixing in the diesel engine air inlet system; Flowmeter I on pipeline between throttle valve and the diesel engine air inlet system is used to measure the air mass flow that the additional mechanical supercharging system gets into diesel engine; Be installed between pressurized machine and the air-strainer II the flowmeter II, be used to measure the air mass flow of pressurized machine of flowing through, through adjustment secondary pressure regulator valve and throttle valve flow and pressure with accurate control additional mechanical supercharging system entering diesel engine air inlet system air; Through installing and using of flowmeter I and flowmeter II accurately to calculate the air mass flow of final entering diesel engine; Through intake temperature and the pressure after cold in thermometer II in the diesel engine air inlet system and the pressure gauge III supervision diesel engine,, confirm whether adjustment is suitable in conjunction with the diesel engine virtual condition.
In the process of the test; Through regulating and the secondary pressure regulator valve of change additional mechanical supercharging system and the different conditions of throttle valve; Can simulate the multiple air inlet state of realizing diesel engine, and then the parameter when combining the actual open state of diesel engine, just can confirm the air inlet state of diesel engine the best.
Claims (4)
1. the additional mechanical supercharging system is used in a diesel engine bench test; It is characterized in that: described additional mechanical supercharging system is arranged on the pipeline between pressurized machine in the diesel engine air inlet system (15) and the intercooler (14), mainly comprises air-strainer I (1), one-level pressure regulator valve (2), surge tank (3), bleed valve (4), secondary pressure regulator valve (5) and throttle valve (6); The import of said air-strainer I (1) is connected with the high pressure admission system; Air-strainer I (1) is communicated with one-level pressure regulator valve (2); One-level pressure regulator valve (2) is communicated with surge tank (3); Said surge tank (3) is communicated with bleed valve (4); Bleed valve (4) is communicated with secondary pressure regulator valve (5); Secondary pressure regulator valve (5) is connected with throttle valve (6), by the flow of throttle valve (6) control air; The outlet of said throttle valve (6) is connected on the pipeline between pressurized machine in the diesel engine air inlet system (15) and the intercooler (14).
2. the additional mechanical supercharging system is used in diesel engine bench test according to claim 1, and it is characterized in that: the connecting pipeline of throttle valve and diesel engine air inlet system is provided with pressure gauge I (8), thermometer I (9) and the flowmeter I (10) that is used to detect the air pressure, temperature and the flow that get into diesel engine air inlet system.
3. the additional mechanical supercharging system is used in diesel engine bench according to claim 1 test, it is characterized in that: become 30 °～45 between the pipeline of the throttle valve in the additional mechanical supercharging system and the connecting pipeline of diesel engine air inlet system and diesel engine air inlet system.
4. the additional mechanical supercharging system is used in diesel engine bench test according to claim 1, and it is characterized in that: being used to diesel engine provides the diesel engine air inlet system of air inlet to comprise air-strainer II (17), pressurized machine (15) and intercooler (14); The import of said air-strainer II (17) is connected with atmosphere, and air-strainer II (17) is connected with pressurized machine (15); Between pressurized machine (15) and air-strainer II (17), be provided for detecting the flowmeter II (16) of air mass flow of pressurized machine of flowing through; Said pressurized machine (15) is connected with intercooler (14), and described intercooler (14) is connected with diesel engine (12); Pressure gauge III (13) and thermometer II (11) are set between intercooler (14) and diesel engine (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120476186 CN202451313U (en) | 2011-11-25 | 2011-11-25 | Accessory supercharging system for diesel rack testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120476186 CN202451313U (en) | 2011-11-25 | 2011-11-25 | Accessory supercharging system for diesel rack testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451313U true CN202451313U (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120476186 Expired - Fee Related CN202451313U (en) | 2011-11-25 | 2011-11-25 | Accessory supercharging system for diesel rack testing |
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| CN (1) | CN202451313U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434333A (en) * | 2011-11-25 | 2012-05-02 | 河南柴油机重工有限责任公司 | Auxiliary pressurization system for diesel engine bench test and using method of auxiliary pressurization system |
| CN102943725A (en) * | 2012-11-30 | 2013-02-27 | 中国人民解放军后勤工程学院 | Device for plateau oxygen-enrichment axillary combustion of engine |
| CN106644536A (en) * | 2016-09-14 | 2017-05-10 | 北京理工大学 | Tank armored vehicle air filter and supercharger performance matching test system |
| CN109538941A (en) * | 2018-12-13 | 2019-03-29 | 西安航天动力研究所 | The pressure charging system and method for satellite attitude control engine valve helium attribute testing |
-
2011
- 2011-11-25 CN CN 201120476186 patent/CN202451313U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434333A (en) * | 2011-11-25 | 2012-05-02 | 河南柴油机重工有限责任公司 | Auxiliary pressurization system for diesel engine bench test and using method of auxiliary pressurization system |
| CN102434333B (en) * | 2011-11-25 | 2013-09-25 | 河南柴油机重工有限责任公司 | Auxiliary pressurization system for diesel engine bench test and using method of auxiliary pressurization system |
| CN102943725A (en) * | 2012-11-30 | 2013-02-27 | 中国人民解放军后勤工程学院 | Device for plateau oxygen-enrichment axillary combustion of engine |
| CN102943725B (en) * | 2012-11-30 | 2015-09-02 | 中国人民解放军后勤工程学院 | A kind of device for plateau oxygen-enrichment axillary combustion of engine |
| CN106644536A (en) * | 2016-09-14 | 2017-05-10 | 北京理工大学 | Tank armored vehicle air filter and supercharger performance matching test system |
| CN109538941A (en) * | 2018-12-13 | 2019-03-29 | 西安航天动力研究所 | The pressure charging system and method for satellite attitude control engine valve helium attribute testing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20141125 |
|
| EXPY | Termination of patent right or utility model |