CN204163896U - A kind of natural gas engine gas handling system - Google Patents
A kind of natural gas engine gas handling system Download PDFInfo
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- CN204163896U CN204163896U CN201420632380.6U CN201420632380U CN204163896U CN 204163896 U CN204163896 U CN 204163896U CN 201420632380 U CN201420632380 U CN 201420632380U CN 204163896 U CN204163896 U CN 204163896U
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- electronic throttle
- surge valve
- pipeline
- cylinder head
- intake manifold
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Abstract
The utility model relates to technical field of engines, specifically a kind of natural gas engine gas handling system by diesel engine refitted, comprise cylinder head and the air filter be connected successively by pipeline, pressurized machine, intercooler, electronic throttle and mixer assembly, intake manifold is provided with in described cylinder head, the side of cylinder head is provided with intake manifold's entrance, described mixer assembly is connected with intake manifold's entrance by pipeline, and described mixer assembly is provided with gas inlet; Also comprise anti-surge valve, described anti-surge valve suction port and the pipeline connection between pressurized machine and electronic throttle, anti-surge valve air outlet and the pipeline connection between air filter and pressurized machine, anti-surge valve is communicated with intake manifold with reference to mouth.The utility model manufacturing process is simple, cost is low, easy-maintaining maintains and failure rate is low.
Description
Technical field
The utility model relates to technical field of engines, specifically a kind of natural gas engine gas handling system by diesel engine refitted.
Background technique
In the prior art, the fuel of motor is mainly based on gasoline and diesel oil, but at present along with the exhaustion of petroleum resources, shortage, environmental pollution and the global climate series of problems such as day by day to warm becomes increasingly conspicuous, countries in the world are all energy-conservation, decreasing pollution thing etc. is put in the first place, natural gas engine has energy-conservation compared with ordinary diesel oil motor, environmental protection, Economy high outstanding advantages, in addition, combustion of natural gas is abundant, without heavy hydrocarbon, do not produce carbon distribution, not dilute lubricating oil, alleviate parts depreciation, effectively can extend engine life, and can maintenance expenses be reduced.Therefore, the demand that domestic natural gas heavily blocks is increasing year by year.The demand of the powerful natural gas engine of the high-performance as car load heart is also in increase.
At present, major part natural gas engine is all developed based on diesel engine, usually, adopt the uniformity (that is: entering the conformity of the air fuel ratio of the mixed gas of each cylinder) that the natural gas engine of single-point discharge formula mixes with air to improve combustion gas, how the entrance of mixed gas is set in the neutral position of intake manifold.But, intake manifold due to former diesel engine has been integrated in cylinder head, the entrance of intake manifold is opened in cylinder head side, if the entrance of mixed gas will be offered in the central position of intake manifold, just need the blank changing cylinder head, not only complex process, cost are high, and cause maintenance difficulty large.In addition, electronic throttle is located at the downstream of mixer assembly by existing natural gas engine gas handling system, the greasy filth causing the machine oil in rock gas and the dust in air to be mixed to form accumulates in electronic throttle, causes electronic throttle clamping stagnation, affects engine performance.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides that a kind of manufacturing process is simple, cost is low, easy-maintaining maintenance and the natural gas engine gas handling system of failure rate is low.
Technical problem to be solved in the utility model realizes by the following technical solutions: a kind of natural gas engine gas handling system, comprise cylinder head and the air filter be connected successively by pipeline, pressurized machine, intercooler, electronic throttle and mixer assembly, intake manifold is provided with in described cylinder head, the side of cylinder head is provided with intake manifold's entrance, described mixer assembly is connected with intake manifold's entrance by pipeline, and described mixer assembly is provided with gas inlet; Also comprise anti-surge valve, described anti-surge valve suction port and the pipeline connection between pressurized machine and electronic throttle, anti-surge valve air outlet and the pipeline connection between air filter and pressurized machine, anti-surge valve is communicated with intake manifold with reference to mouth.
Working principle of the present utility model: air is successively by air filter and pressurized machine, cooled cooling in intercooler, then enter mixed gas assembly by electronic throttle, enter firing chamber by intake manifold after fully mixing with the rock gas being entered mixer assembly by gas inlet and be easily ignited by the spark plug acting.In the impeller high-speed rotation of pressurized machine; if electronic throttle is closed suddenly (such as motor is shut down suddenly); anti-surge valve can increase with reference to the pressure reduction at mouth and anti-surge valve suction port place; its internal valves is opened; high-pressure air after supercharging is just back to pressurized machine upstream by anti-surge valve, thus prevents turbocharger surge.
Relative to prior art, the beneficial effect of the utility model natural gas engine gas handling system is: directly utilize the cylinder head of former diesel engine and do not transform its structure, manufacturing process is simple, cost is low; Because intake manifold's entrance is located at the side of cylinder head, a lot of pipeline of gas handling system and parts are all exposed at cylinder head outside, for ease of maintenaince maintain; Electronic throttle is located at the upstream of mixer assembly, avoids causing clamping stagnation because accumulating greasy filth in electronic throttle, improve the performance of natural gas engine; Anti-surge valve prevents turbocharger surge, makes the performance of natural gas engine more stable.
As preferably, the upstream of described electronic throttle is provided with air inlet temperature/pressure sensor I, and the downstream pipe of electronic throttle is provided with air inlet temperature/pressure sensor II.Adopt the technical program, utilize air inlet temperature/pressure sensor I and air inlet temperature/pressure sensor II to gather the pressure and temperature data of gas in gas handling system, then calculate air quality and flow by ECU.
As preferably, described air inlet temperature/pressure sensor I is located on the pipeline between intercooler and electronic throttle and distance electronic throttle is comparatively near, and described air inlet temperature/pressure sensor II is located on the pipeline between electronic throttle and mixer assembly and distance electronic throttle is far away.Adopt the technical program, the data precision that the airflow influence air inlet temperature/pressure sensor II that can prevent electronic throttle action from producing gathers, the data that air inlet temperature/pressure sensor II is gathered are more accurate.
As preferably, the suction port of described anti-surge valve and the pipeline connection between intercooler and electronic throttle.Adopt the technical program, make the air flowing through anti-surge valve be through intercooler cooling, prevent anti-surge valve from damaging because of too high temperature of air.
As preferably, the pipeline between described intercooler and electronic throttle is fixed in cylinder head by support.Adopt the technical program, make the structure of gas handling system more firmly compact.
As preferably, described mixer assembly and anti-surge valve are all fixed in cylinder head by support.Adopt the technical program, make the structure of gas handling system more firmly compact.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model natural gas engine gas handling system.
Fig. 2 is the side view of this utility model cylinder head.
In figure: 1, cylinder head, 1-1, intake manifold's entrance, 2, air filter, 3, pressurized machine, 4, intercooler, 5, electronic throttle, 6, mixer assembly, 6-1, gas inlet, 7, anti-surge valve, 7-1, anti-surge valve suction port, 7-2, anti-surge valve air outlet, 7-3, anti-surge valve with reference to mouth, 8, air inlet temperature/pressure sensor I, 9, air inlet temperature/pressure sensor II.
Embodiment
For the technical characterstic of this programme can be clearly demonstrated, with reference to the accompanying drawings the utility model embodiment is described further below.
As shown in Figure 1 and Figure 2, a kind of natural gas engine gas handling system, comprise cylinder head 1 and the air filter 2 be connected successively by pipeline, pressurized machine 3, intercooler 4, electronic throttle 5 and mixer assembly 6, intake manifold is provided with in described cylinder head 1, the side of cylinder head 1 is provided with intake manifold's entrance 1-1, described mixer assembly 6 is connected with intake manifold's entrance 1-1 by pipeline, and described mixer assembly 6 is provided with gas inlet 6-1; Also comprise anti-surge valve 7, described anti-surge valve suction port 7-1 and the pipeline connection between intercooler 4 and electronic throttle 5, anti-surge valve air outlet 7-2 and the pipeline connection between air filter 2 and pressurized machine 3, anti-surge valve is communicated with intake manifold with reference to mouth 7-3; Described mixed gas assembly 6, anti-surge valve 7 and the pipeline between intercooler 4 and electronic throttle 5 are all fixed in cylinder head 1 by support; Pipeline between described intercooler 4 and electronic throttle 5 is provided with air inlet temperature/pressure sensor I 8, described air inlet temperature/pressure sensor I 9 distance electronic throttle 5 is nearer, pipeline between described electronic throttle 5 and mixer assembly 6 is provided with air inlet temperature/pressure sensor II 9, and described air inlet temperature/pressure sensor II 9 distance electronic throttle 5 is far away.
Working principle of the present utility model: air is successively by air filter 2 and pressurized machine 3, cooled cooling in intercooler 4, then enter mixed gas assembly 6 by electronic throttle 5, enter firing chamber by intake manifold after fully mixing with the rock gas being entered mixer assembly 6 by gas inlet 6-1 and be easily ignited by the spark plug acting.In the impeller high-speed rotation of pressurized machine 3; if electronic throttle 5 closes (such as motor is shut down suddenly) suddenly; the pressure reduction at the suction port 7-1 place of anti-surge valve reference mouth 7-3 and anti-surge valve can increase; its internal valves is opened; high-pressure air after supercharging is just back to pressurized machine 3 upstream by anti-surge valve 7, thus prevents pressurized machine 3 surge.
By reference to the accompanying drawings embodiment of the present utility model is elaborated above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from the utility model aim.
Claims (6)
1. a natural gas engine gas handling system, comprise cylinder head (1) and the air filter (2) be connected successively by pipeline, pressurized machine (3), intercooler (4), electronic throttle (5) and mixer assembly (6), described cylinder head is provided with intake manifold in (1), the side of cylinder head (1) is provided with intake manifold's entrance (1-1), described mixer assembly (6) is connected with intake manifold's entrance (1-1) by pipeline, and described mixer assembly (6) is provided with gas inlet (6-1); Also comprise anti-surge valve (7), described anti-surge valve suction port (7-1) and the pipeline connection between pressurized machine (3) and electronic throttle (5), anti-surge valve air outlet (7-2) and the pipeline connection between air filter (2) and pressurized machine (3), anti-surge valve is communicated with intake manifold with reference to mouth (7-3).
2. natural gas engine gas handling system according to claim 1, it is characterized in that: the upstream of described electronic throttle (5) is provided with air inlet temperature/pressure sensor I (8), the downstream pipe of electronic throttle (5) is provided with air inlet temperature/pressure sensor II (9).
3. natural gas engine gas handling system according to claim 2, it is characterized in that: described air inlet temperature/pressure sensor I (8) is located on the pipeline between intercooler (4) and electronic throttle (5), described air inlet temperature/pressure sensor II (9) is located on the pipeline between electronic throttle (5) and mixer assembly (6).
4., according to the arbitrary described natural gas engine gas handling system of claim 1-3, it is characterized in that: the suction port (7-1) of described anti-surge valve (7) and the pipeline connection between intercooler (4) and electronic throttle (5).
5., according to the arbitrary described natural gas engine gas handling system of claim 1-3, it is characterized in that: the pipeline between described intercooler (4) and electronic throttle (5) is fixed in cylinder head (1) by support.
6., according to the arbitrary described natural gas engine gas handling system of claim 1-3, it is characterized in that: described mixer assembly (6) and anti-surge valve (7) are all fixed in cylinder head (1) by support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420632380.6U CN204163896U (en) | 2014-10-29 | 2014-10-29 | A kind of natural gas engine gas handling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420632380.6U CN204163896U (en) | 2014-10-29 | 2014-10-29 | A kind of natural gas engine gas handling system |
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| Publication Number | Publication Date |
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| CN204163896U true CN204163896U (en) | 2015-02-18 |
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| CN201420632380.6U Active CN204163896U (en) | 2014-10-29 | 2014-10-29 | A kind of natural gas engine gas handling system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863763A (en) * | 2015-05-27 | 2015-08-26 | 无锡开普动力有限公司 | Supercharging and inter-cooling structure of engine |
| CN105370390A (en) * | 2015-11-25 | 2016-03-02 | 重庆普什机械有限责任公司 | Supercharged inter-cooling internal combustion engine gas intake bypass control device |
| CN105402023A (en) * | 2015-11-25 | 2016-03-16 | 重庆普什机械有限责任公司 | Intake control system |
| CN108825391A (en) * | 2018-07-10 | 2018-11-16 | 潍柴西港新能源动力有限公司 | Improve the device and its response method of natural gas engine transient response |
-
2014
- 2014-10-29 CN CN201420632380.6U patent/CN204163896U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863763A (en) * | 2015-05-27 | 2015-08-26 | 无锡开普动力有限公司 | Supercharging and inter-cooling structure of engine |
| CN105370390A (en) * | 2015-11-25 | 2016-03-02 | 重庆普什机械有限责任公司 | Supercharged inter-cooling internal combustion engine gas intake bypass control device |
| CN105402023A (en) * | 2015-11-25 | 2016-03-16 | 重庆普什机械有限责任公司 | Intake control system |
| CN108825391A (en) * | 2018-07-10 | 2018-11-16 | 潍柴西港新能源动力有限公司 | Improve the device and its response method of natural gas engine transient response |
| CN108825391B (en) * | 2018-07-10 | 2023-10-20 | 潍柴西港新能源动力有限公司 | Device for improving transient response of natural gas engine and response method thereof |
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