CN104635794A - Apparatus for precisely regulating intake temperature by water cooling - Google Patents
Apparatus for precisely regulating intake temperature by water cooling Download PDFInfo
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- CN104635794A CN104635794A CN201410695660.6A CN201410695660A CN104635794A CN 104635794 A CN104635794 A CN 104635794A CN 201410695660 A CN201410695660 A CN 201410695660A CN 104635794 A CN104635794 A CN 104635794A
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- draft tube
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Abstract
The invention provides an apparatus for precisely regulating intake temperature by water cooling. The apparatus comprises a compressor exhaust pipe, an intercooler, a cooling water pipe, an intake pipe, a diesel engine, a temperature sensor and an ECU (electronic control unit). An inlet of the intercooler is communicated with the compressor exhaust pipe; an outlet of the intercooler is communicated with an inlet of the intake pipe; a water cooling inlet of the intercooler is communicated with an outlet of the cooling water pipe through an electromagnetic valve; the temperature sensor is disposed within the intake pipe; an outlet of the intake pipe is connected to an intake hole of the diesel engine; the control end of the electromagnetic valve is in signal connection with the control signal output port of the ECU; the temperature sensor is in signal connection with a signal input port of the ECU. The apparatus according to the technical scheme has the advantages that the ECU and the electromagnetic valve are added, intake temperature of the diesel engine running in low-load condition at low ambient temperature is raised, performance of the diesel engine is improved, environmental adaptability of the diesel engine is improved and the apparatus is simple in structure and convenient to regulate.
Description
Technical field
The present invention relates to the technical field of diesel engine, especially a kind of water-cooled fine adjustment intake air temperature device.
Background technology
Along with improving constantly of diesel engine power demand, and the increasingly stringent of Abgasgesetz, diesel engine extensively adopts charge inter cooling technology, its objective is increase charge, improve burning performance.
For turbocharged and intercooled diesel engine, the flow entering the fuel and air mixture in cylinder determines the size of diesel engine power, therefore carrys out hoisting power by improving density of the induced air.
Application number is the intake air temperature pressure adjustment assembly that application discloses a kind of diesel engine of 201010141298.X, comprises air inlet temperature regulating unit and inlet pressure adjusting valve; Air inlet temperature regulating unit comprises a flue gas heat-exchange unit, an air goes out pipe, two air inlet lines, an inlet air flow area governor motion, and flue gas heat-exchange unit comprises the smoke inlet pipe and heat interchanger air inlet and heat interchanger air outlet that are connected with heat exchanger tube; Smoke inlet pipe is connected with the flue gas discharge opening of diesel engine by pipeline; Air goes out pipe and is docked at bottom heat interchanger air outlet; Two air inlet lines are separately positioned on flue gas heat-exchange unit both sides, go out pipe be respectively communicated with bottom it with air, there is economize energy and temperature-adjustment pressure-adjustment, simulated high altitude are carried out to diesel engine intake, dive with or the advantage of other pressure and temp environment.But technical scheme have employed the scheme of engine exhaust heating air inlet disclosed in this patent, when being applicable to test, improve intake air temperature and pressure, also have that equipment complexity, resistance are large simultaneously, intake air temperature is difficult to the defect that accurately controls.
As shown in Figure 1, usual diesel engine charge air cooler design is control calibration point intake air temperature is about 50 DEG C for turbocharged and intercooled diesel engine ultimate principle and structure.But when the temperature of the surroundings is low, or diesel engine is under the operating mode that boost pressure is lower, charge air cooler to air inlet sub-cooled, will make diesel engine compress finishing temperature lower, causes diesel engine ignition lag, and burning worsens.
Summary of the invention
The problem to be solved in the present invention be to provide a kind of in environment temperature lower or diesel engine supercharging pressure is lower time, avoid charge air cooler to air inlet supercooled water-cooled fine adjustment intake air temperature device.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of water-cooled fine adjustment intake air temperature device, comprises pneumatic plant escape pipe, charge air cooler, cooling water pipe, draft tube, diesel engine, temperature sensor and ECU;
The import of described charge air cooler is communicated with described pneumatic plant escape pipe, the inlet communication of outlet and described draft tube, and the water-cooled entrance of this charge air cooler passes through the outlet of a solenoid valve and described cooling water pipe;
Described temperature sensor is provided with in described draft tube, and the outlet of this draft tube access diesel engine intake mouth;
The control end of described solenoid valve is connected with the control signal output interface signal of described ECU, and described temperature sensor is connected with the signal input interface signal of described ECU.
Further, described temperature sensor is radio temperature sensor, and this temperature sensor is fixed on the inwall of described draft tube by heat-insulating base.
The advantage that the present invention has and good effect are: adopt technique scheme, by increasing ECU and solenoid valve, improve diesel engine running on the lower load and environment temperature lower time intake air temperature, improve diesel engine performance, enhance the environmental suitability of diesel engine, and structure is simple, easy to adjust.
Accompanying drawing explanation
Fig. 1 is diesel engine ICS intercooler system structured flowchart;
Fig. 2 is water-cooled fine adjustment intake air temperature apparatus structure block diagram.
In figure: 1, compressor air inlet machine pipe 2, charge air cooler 3, cooling water pipe 4, solenoid valve 5, ECU 6 temperature sensor
Embodiment
Below with reference to the accompanying drawings and specific embodiment detailed description is made to the present invention.
As shown in Figure 2, the present invention includes pneumatic plant escape pipe 1, charge air cooler 2, cooling water pipe 3, draft tube, diesel engine, temperature sensor 6 and ECU5.
The import of charge air cooler 2 is communicated with pneumatic plant escape pipe 1, the inlet communication of outlet and draft tube, and the water-cooled entrance of this charge air cooler 2 is by the outlet of a solenoid valve 4 with cooling water pipe 3, in order to form the inlet channel of diesel engine.
Temperature sensor 6 is provided with in draft tube, in order to detect the air themperature in draft tube, and the outlet of this draft tube access diesel engine intake mouth, complete the charge transfer of diesel engine.
The control end of solenoid valve 4 is connected with the control signal output interface signal of ECU5, and temperature sensor 6 is connected with the signal input interface signal of described ECU5, makes ECU5 according to the aperture size of the temperature signal Controlling solenoid valve 4 inputted by temperature sensor 6.
Temperature sensor 6 is radio temperature sensor, this temperature sensor 6 is arranged on the inwall of draft tube by heat insulation holder, be separated with heat-insulating base between temperature sensor 6 and draft tube inwall, avoid draft tube wall temperature to the thermometric impact of temperature sensor 6.
The present invention is before carrying out system installation, first carry out solenoid valve 4 aperture control Map by overall test to set, determine in draft tube air themperature exceed in range of normal value after solenoid valve 4 aperture optimal data, completion system is optimized, ensure cold temperature in optimum, reach the combustion process of optimization, improve diesel engine performance and emission level further, improve the environmental suitability of diesel engine.
The course of work of the present invention is: pneumatic plant constantly compresses outside air, and by pneumatic plant escape pipe 1, air is inputted in charge air cooler 2, the water quench air wherein constantly inputted by cooling water pipe 3 in charge air cooler 2, and by cooled air input draft tube, then input diesel engine by draft tube;
When temperature sensor 6 gas temperature measured in draft tube in draft tube drops to a certain degree, the temperature signal that ECU5 is sent by this temperature sensor 6 of receiving and analyzing determines gas temperature angle value in draft tube, then by Controlling solenoid valve 4 aperture, solenoid valve 4 aperture is made to diminish, control the cooling water flow entering charge air cooler 2, promote the gas temperature in draft tube;
When the gas temperature that temperature sensor 6 measures in draft tube rises to a certain degree, ECU5 is by Controlling solenoid valve 4 aperture, solenoid valve 4 aperture is made to become large, the discharge entering charge air cooler 2 is increased, reduce gas temperature in draft tube, thus ensure cold rear temperature in optimum, Optimizing Combustion process, improve diesel engine performance and emission level.
Above embodiments of the invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the scope of the invention change and improve, and all should still belong within this patent covering scope.
Claims (2)
1. a water-cooled fine adjustment intake air temperature device, is characterized in that: comprise pneumatic plant escape pipe (1), charge air cooler (2), cooling water pipe (3), draft tube, diesel engine, temperature sensor (6) and ECU (5);
The import of described charge air cooler (2) is communicated with described pneumatic plant escape pipe (1), the inlet communication of outlet and described draft tube, and the water-cooled entrance of this charge air cooler (2) is by the outlet of a solenoid valve (4) with described cooling water pipe (3);
Described temperature sensor (6) is provided with in described draft tube, and the outlet of this draft tube access diesel engine intake mouth;
The control end of described solenoid valve (4) is connected with the control signal output interface signal of described ECU (5), and described temperature sensor (6) is connected with the signal input interface signal of described ECU (5).
2. water-cooled fine adjustment intake air temperature device according to claim 1, it is characterized in that:, described temperature sensor (6) is radio temperature sensor, and this temperature sensor (6) is fixed on the inwall of described draft tube by heat-insulating base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410695660.6A CN104635794A (en) | 2014-11-26 | 2014-11-26 | Apparatus for precisely regulating intake temperature by water cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410695660.6A CN104635794A (en) | 2014-11-26 | 2014-11-26 | Apparatus for precisely regulating intake temperature by water cooling |
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| Publication Number | Publication Date |
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| CN104635794A true CN104635794A (en) | 2015-05-20 |
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| CN201410695660.6A Pending CN104635794A (en) | 2014-11-26 | 2014-11-26 | Apparatus for precisely regulating intake temperature by water cooling |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912652A (en) * | 2015-05-25 | 2015-09-16 | 潍柴动力股份有限公司 | Intercooling control system and method |
| CN107587933A (en) * | 2017-11-01 | 2018-01-16 | 潍柴动力股份有限公司 | A kind of seawater flow governor motion, a kind of intercooler system, a kind of engine |
| CN110107433A (en) * | 2019-04-02 | 2019-08-09 | 中国北方发动机研究所(天津) | A kind of diesel engine air inlet system |
| CN112490468A (en) * | 2020-11-20 | 2021-03-12 | 广西玉柴机器股份有限公司 | Integrated intercooler, thermal management device and fuel cell system |
| CN114371744A (en) * | 2021-12-20 | 2022-04-19 | 中国北方发动机研究所(天津) | Intercooler temperature control device for engine bench test |
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| CN102562258A (en) * | 2010-11-10 | 2012-07-11 | 株式会社电装 | Intake Air Cooling Device |
| CN202720531U (en) * | 2012-07-11 | 2013-02-06 | 十堰晨鹏机电科技有限公司 | Intercooler simulated temperature control device |
| JP2013142300A (en) * | 2012-01-10 | 2013-07-22 | Mitsubishi Motors Corp | Cooling system of vehicle |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070125081A1 (en) * | 2005-12-02 | 2007-06-07 | Borgwarner Inc. | Combined EGR valve and cooler by-pass |
| CN201786440U (en) * | 2010-09-13 | 2011-04-06 | 中国北车集团大连机车车辆有限公司 | Diesel engine pressurizing gas cooling device |
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| CN202100346U (en) * | 2011-03-28 | 2012-01-04 | 上海凯迅发动机有限公司 | Diesel engine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912652A (en) * | 2015-05-25 | 2015-09-16 | 潍柴动力股份有限公司 | Intercooling control system and method |
| CN107587933A (en) * | 2017-11-01 | 2018-01-16 | 潍柴动力股份有限公司 | A kind of seawater flow governor motion, a kind of intercooler system, a kind of engine |
| CN110107433A (en) * | 2019-04-02 | 2019-08-09 | 中国北方发动机研究所(天津) | A kind of diesel engine air inlet system |
| CN112490468A (en) * | 2020-11-20 | 2021-03-12 | 广西玉柴机器股份有限公司 | Integrated intercooler, thermal management device and fuel cell system |
| CN114371744A (en) * | 2021-12-20 | 2022-04-19 | 中国北方发动机研究所(天津) | Intercooler temperature control device for engine bench test |
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Application publication date: 20150520 |
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