CN202065095U - Fuel oil supplying system of engine using dimethyl ether - Google Patents
Fuel oil supplying system of engine using dimethyl ether Download PDFInfo
- Publication number
- CN202065095U CN202065095U CN2011200724734U CN201120072473U CN202065095U CN 202065095 U CN202065095 U CN 202065095U CN 2011200724734 U CN2011200724734 U CN 2011200724734U CN 201120072473 U CN201120072473 U CN 201120072473U CN 202065095 U CN202065095 U CN 202065095U
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- Prior art keywords
- dimethyl ether
- pressure
- fuel
- service pump
- supply system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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Abstract
The utility model discloses a fuel oil supplying system of an engine using dimethyl ether, comprising a fuel pot (1) for storing dimethyl ether, a booster pump (3), a high pressure pump (8) and a fuel injector (6). Radiators (4) are arranged in an oil return line (81) of the high pressure pump (8) and an oil return line (61) of the fuel injector (6). According to the fuel oil supplying system of an engine using dimethyl ether, radiators are arranged in an oil return line of the high pressure pump and an oil return line of the fuel injector, so that the dimethyl ether of backflow is cooled; temperature of a backflow pipeline is maintained; a normal temperature or low temperature environment of the dimethyl ether in the fuel pot for storing dimethyl ether is further guaranteed; gasification and leakage of the dimethyl ether due to an overheated system are prevented; thus safety performance of the system is increased; the dimethyl ether maintains certain temperature; and stability of pressure of the system is facilitated to be increased.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly a kind of fuel oil supply system of dimethyl ether engine.
Background technique
Dimethyl ether has the advantages that boiling point is low, the volume calorific value is low and viscosity is low, compression ignition combustion under high compression ratio, has the thermal efficiency with the diesel engine equivalence, do not contain the c-c key in the dimethyl ether molecular formula simultaneously, can realize smokeless combustion, therefore, dimethyl ether can be realized clean burning as the fuel of compression ignition engine, is a kind of green energy resource of excellence.
The dimethyl ether engine fuel oil supply system is made up of the parts such as fuel pot, suction booster, high-pressure service pump and oil sprayer that store dimethyl ether fuel usually.During work, suction booster obtains dimethyl ether fuel from fuel pot, is pressed into after the pressurization in suction booster and the pipeline that high-pressure service pump is communicated with, enters high-pressure service pump then, high-pressure service pump is again with the dimethyl ether fuel feeding oil sprayer, and oil sprayer sprays into dimethyl ether in the cylinder body of motor and burns with air mixing.The unnecessary dimethyl ether fuel return opening by separately flows back in the dimethyl ether fuel jar in high-pressure service pump and the oil sprayer.
Dimethyl ether is gaseous state at normal temperatures, consider based on factors such as safety, convenient use transportations, usually dimethyl ether is pressed in the normal temperature tank-like body, under the saturation vapour pressure effect, be in a liquid state, and the temperature of the dimethyl ether fuel after the high-pressure service pump oil return can raise, then cause intensification for the oil returning tube of dimethyl ether oil return, and, after dimethyl ether flows back to fuel pot, also can cause the intensification of fuel pot, cause the oil-fired system temperature too high, be easy to generate the problem that dimethyl ether is revealed, thereby the environment of influence storage produces potential safety hazard.
In addition, because dimethyl ether normal temperature is down gaseous state, in order to guarantee the dimethyl ether engine proper functioning, the fuel oil supply system of ordinary diesel oil machine can't satisfy usage requirement in the prior art, the dimethyl ether engine fuel oil supply system is required to be the low service system of pressure stability, and the dimethyl ether after heating up can cause the rising of system pressure equally, influences the stability of system pressure, causes engine operation unusual.
Therefore, how providing a kind of safer reliable, more stable dimethyl ether engine fuel oil supply system of pressure is those skilled in the art's technical issues that need to address.
The model utility content
The purpose of this utility model provides a kind of dimethyl ether engine fuel oil supply system, and the temperature and pressure of this fuel oil supply system is all regulated and control preferably, has advantage safe and reliable, pressure stability.
For solving the problems of the technologies described above, the utility model provides a kind of fuel oil supply system of dimethyl ether engine, comprise fuel pot, suction booster, high-pressure service pump and the oil sprayer of storing dimethyl ether, be equipped with radiator in the return line of described high-pressure service pump and the return line of described oil sprayer.
Preferably, be provided with pressure regulator valve in the return line of described high-pressure service pump.
Preferably, the return line of the return line of described high-pressure service pump and described oil sprayer is communicated with the return opening of described fuel pot by three-way valve.
Preferably, be provided with first pressure gauge in described suction booster oil outlet and the in-line that the filler opening of described high-pressure service pump is communicated with.
Preferably, be provided with second pressure gauge in the connecting pipeline of the oil outlet of the filler opening of described suction booster and described fuel pot.
Preferably, be provided with filter cleaner in the in-line of described suction booster oil outlet and described high-pressure service pump filler opening.
Preferably, described first pressure gauge is located in the in-line between described filter cleaner and the described high-pressure service pump.
Preferably, described filter cleaner has the metal powder metallurgy filter core.
Dimethyl ether engine fuel oil supply system provided by the utility model is provided with radiator in the return line of the return line of high-pressure service pump and oil sprayer.The setting of radiator makes the cooling of being lowered the temperature of the dimethyl ether of backflow, keep the temperature of reflux line, and guarantee the normal temperature or the low temperature environment of dimethyl ether in the dimethyl ether fuel jar further, prevent system overheat and cause the dimethyl ether gasification to be revealed, thereby improve the Safety performance of system; And make dimethyl ether keep certain temperature, help to improve the stability of system pressure.
In a kind of embodiment, be provided with pressure regulator valve in the pipeline of the return opening of high-pressure service pump and the return opening of fuel pot, can make the loine pressure maintenance of high-pressure service pump stable by adjusting pressure regulator valve, satisfy the proper functioning of dimethyl ether engine.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of dimethyl ether engine fuel oil supply system provided by the present invention.
Embodiment
Core of the present utility model provides a kind of dimethyl ether engine fuel oil supply system, and the temperature and pressure of this fuel oil supply system is all regulated and control preferably, has advantage safe and reliable, pressure stability.
In order to make those skilled in the art understand the technical solution of the utility model better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of embodiment of dimethyl ether engine fuel oil supply system provided by the present invention.
The fuel oil supply system of the dimethyl ether engine in this embodiment, comprise dimethyl ether fuel jar 1, suction booster 3, high-pressure service pump 8 and oil sprayer 6, suction booster 3 is connected with the outlet of dimethyl ether fuel jar 1, the outlet port of dimethyl ether fuel jar 1 can be provided with butterfly valve class switch valve, outflow with the control dimethyl ether, after dimethyl ether enters suction booster 3,3 pairs of dimethyl ether of suction booster pressurize, dimethyl ether is pressed in the dimethyl ether pipeline that is communicated with high-pressure service pump 8, high-pressure service pump 8 is the dimethyl ether Injection Pump, the dimethyl ether of inflow high-pressure service pump 8 enters oil sprayer 6 and is sprayed into by its oil nozzle in the cylinder of motor, with pressurized air mixed combustion, to finish the stroke of motor.Oil sprayer 6 can accurately be controlled the emitted dose of dimethyl ether according to fuel injection pulse signal.
When the dimethyl ether pressure in high-pressure service pump 8 bodies was excessive, unnecessary dimethyl ether can flow back to fuel pot 1 by return opening, can control the pressure of backflow by scavenger valve, thereby guaranteed that dimethyl ether pressure in the high-pressure service pump 8 is unlikely too high and damage high-pressure service pump 8 and pipeline; Oil sprayer 6 also has the return line 61 that is communicated with fuel pot 1, be used for guaranteeing that the dimethyl ether that does not spray in the cylinder flows back to fuel pot 1, preventing that unnecessary dimethyl ether from building the pressure in oil sprayer 6 inside causes needle opening pressure to raise, and causes injection time to change atomization badness.Also be provided with radiator 4 in the return line 81 of this embodiment mesohigh pump 8 and the return line 61 of oil sprayer 6, the concrete specification of radiator 4 can be according to actual needs, the factors such as specification of high-pressure service pump 8 are selected.The return line 81 shared radiators 4 of oil sprayer 6 shown in Fig. 1 and high-pressure service pump 8, in theory, also radiator 4 can be set respectively in return line separately, certainly, based on saving resource space, being convenient to install factors considerations such as regulation and control and control cost of production, preferably, make the return line 81 shared radiators 4 of oil sprayer 6 and high-pressure service pump 8.Radiator 4 the position specifically is set, should be prerequisite to guarantee that as far as possible radiator 4 has good ventilation state, thereby bring into play cooling action preferably, and according to concrete type, factor such as be convenient to install and select optimum mounting point.The return line 61 of oil sprayer 6 comprises return tube 611 and the common connecting tube 612 that joins with it, return tube 611 preferably adopts copper tube, owing to take the mode of sealing and fixing between the return tube 611 of oil sprayer 6 and the oil sprayer 6, such as, welding, then the return tube 611 of oil sprayer 6 need bear pressure and the vibration that oil sprayer 6 brings, and copper tube can bear certain pressure and vibration, prevent the pipeline vibration fracture, influence the normal operation of whole system.The return line 81 of high-pressure service pump 8 can adopt withstand voltage metal tube to form, and can bear the above pressure of 2MPa.
Dimethyl ether in the high-pressure service pump 8 are delivered to can be by compression in the process of oil sprayer 6, ground is without loss of generality, 8 up compression dimethyl ether of piston high-pressure pump by plunger, grease chamber's internal pressure sharply raises, when pressure surpasses the spring force of outlet valve and top oil pressure, dimethyl ether is pressed into pipeline with regard to backing down outlet valve, unnecessary dimethyl ether oil return, and the dimethyl ether that then enters oil sprayer 6 and oil returning tube is owing to compression has higher temperature.The setting of radiator 4 makes the cooling of being lowered the temperature of the dimethyl ether of backflow, keep the temperature of reflux line, guarantee the normal temperature or the low temperature environment of dimethyl ether in the dimethyl ether fuel jar 1 further, prevent system overheat and cause dimethyl ether gasification to be revealed, thereby improve the Safety performance of system; And make dimethyl ether keep certain temperature, help to improve the stability of system pressure.
In another kind of embodiment, in the pipeline of the return opening of the return opening of high-pressure service pump 8 and fuel pot 1 pressure regulator valve 811 can also be set, can make the loine pressure maintenance of high-pressure service pump 8 stable by adjusting pressure regulator valve 811, remain on 1MPa～1.5MPa such as the pressure that can make system, this pressure range can satisfy the proper functioning of dimethyl ether engine.As shown in Figure 1, dimethyl ether enters high-pressure service pump 8 from in-line, and pressure regulator valve 811 can be set the return pressure of dimethyl ether, thereby makes the pressure in the high-pressure service pump 8 and the pressure of in-line keep stable, guarantee to enter the dimethyl ether pressure of oil sprayer 6, and then keep the pressure stability of whole system.The high-pressure service pump 8 dimethyl ether return pressures after pressure regulator valve 811 pressure regulation and the dimethyl ether return pressure of oil sprayer 6 are determined by the saturation vapour pressure in the fuel pot 1.
The return opening of the return opening of high-pressure service pump 8 and oil sprayer 6 is communicated with by three-way valve 9 with the return opening of fuel pot 1.As shown in Figure 1, the dimethyl ether that flows back to from return tube 61 roads of the oil returning tube of high-pressure service pump 8 and oil sprayer 6 converges to shared oil returning tube by three-way valve 9, and being connected of oil returning tube and fuel pot 1 return opening is convenient in the setting of three-way valve 9, thereby simplifies the setting of pipeline; Simultaneously, the installation of radiator 4 also is convenient in the setting of three-way valve 9, and a radiator 4 can be only be installed in shared oil returning tube, simultaneously for the cooling of the dimethyl ether that flows back to from high-pressure service pump 8 and oil sprayer 6.
Be provided with first pressure gauge 22 in the in-line of the filler opening of the oil outlet of suction booster 3 and high-pressure service pump 8, be provided with second pressure gauge 21 in the pipeline of the oil outlet of the filler opening of suction booster 3 and fuel pot 1, promptly pressure gauge all is set in the import and the outlet port of suction booster 3.Second pressure gauge 22 in the pipeline between suction booster 3 and high-pressure service pump 8 can be monitored the pressure of dimethyl ether in-line, thereby pressure according to the force value real-time monitoring dimethyl ether in-line that detects, guarantee the stable of system pressure, such as, in high-pressure service pump 8 return lines, install under the situation of pressure regulator valve 811, when system opens, at first open suction booster 3, can set the preset pressure of pressure regulator valve 811 according to manometric reading; Be arranged in fuel pot 1 outlet and can monitor the dimethyl ether pressure of fuel pot 1, thereby grasp the stored profile of dimethyl ether with first pressure gauge 21 of suction booster 3 inlet ductwork.As shown in Figure 1, first pressure gauge 21 and second pressure gauge 22 all can adopt shockproof pressure gauge, the engine fuel system pipeline can produce vibrations, shockproof pressure gauge goes for the place of environment high vibration, can tolerate the pulsatile impact and the unexpected off-load of medium, the instrument indication remains stable state clearly.
Between suction booster 3 oil outlets and high-pressure service pump 8 filler openings filter cleaner 5 can be set, when then the dimethyl ether that flows out from dimethyl ether fuel jar 1 passed through dimethyl ether filter cleaner 5, impurity was filtered, and can effectively prevent the oil supply system obstruction.Because dimethyl ether has certain corrosivity to rubber, therefore, dimethyl ether filter cleaner 5 can adopt the metal powder metallurgy filter core of tolerance dimethyl ether corrosion, the working life of improving filter cleaner 5.Filter cleaner 5 is when realizing filtration, also can produce pressure loss, therefore, first pressure gauge 21 can be arranged in the in-line between filter cleaner 5 and the high-pressure service pump 8, then the reading of first pressure gauge 21 can reflect the actual pressure of in-line more definitely, is convenient to accuracy controlling.
More than a kind of dimethyl ether engine fuel oil supply system provided by the utility model is described in detail.Used specific embodiment herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (8)
1. the fuel oil supply system of a dimethyl ether engine, comprise fuel pot (1), suction booster (3), high-pressure service pump (8) and the oil sprayer (6) of storing dimethyl ether, it is characterized in that, be equipped with radiator (4) in the return line (81) of described high-pressure service pump (8) and the return line (61) of described oil sprayer (6).
2. fuel oil supply system according to claim 1 is characterized in that, is provided with pressure regulator valve (811) in the return line (81) of described high-pressure service pump (8).
3. fuel oil supply system according to claim 1 and 2 is characterized in that, the return line (81) of described high-pressure service pump (8) and the return line (61) of described oil sprayer (6) are communicated with the return opening of described fuel pot (1) by three-way valve (9).
4. fuel oil supply system according to claim 3 is characterized in that, is provided with first pressure gauge (21) in described suction booster (3) oil outlet and the in-line that the filler opening of described high-pressure service pump (8) is communicated with.
5. fuel oil supply system according to claim 4 is characterized in that, is provided with second pressure gauge (22) in the connecting pipeline of the oil outlet of the filler opening of described suction booster (3) and described fuel pot (1).
6. fuel oil supply system according to claim 5 is characterized in that, is provided with filter cleaner (5) in the in-line of described suction booster (3) oil outlet and described high-pressure service pump (8) filler opening.
7. fuel oil supply system according to claim 6 is characterized in that, described first pressure gauge (21) is located in the in-line between described filter cleaner (5) and the described high-pressure service pump (8).
8. fuel oil supply system according to claim 7 is characterized in that, described filter cleaner (5) has the metal powder metallurgy filter core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200724734U CN202065095U (en) | 2011-03-18 | 2011-03-18 | Fuel oil supplying system of engine using dimethyl ether |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200724734U CN202065095U (en) | 2011-03-18 | 2011-03-18 | Fuel oil supplying system of engine using dimethyl ether |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202065095U true CN202065095U (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200724734U Expired - Lifetime CN202065095U (en) | 2011-03-18 | 2011-03-18 | Fuel oil supplying system of engine using dimethyl ether |
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| Country | Link |
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| CN (1) | CN202065095U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375313A (en) * | 2012-04-25 | 2013-10-30 | 迪尔公司 | Diesel fuel supply circuit |
| CN105909379A (en) * | 2016-06-12 | 2016-08-31 | 深圳市金动科力实业有限公司 | Multifunctional V-shaped power integrated machine |
| CN112901380A (en) * | 2020-09-01 | 2021-06-04 | 太原理工大学 | Compression ignition type methanol engine fuel supply system and control method thereof |
| CN114992016A (en) * | 2022-06-20 | 2022-09-02 | 青岛双瑞海洋环境工程股份有限公司 | Ammonia fuel supply system and ship |
-
2011
- 2011-03-18 CN CN2011200724734U patent/CN202065095U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375313A (en) * | 2012-04-25 | 2013-10-30 | 迪尔公司 | Diesel fuel supply circuit |
| CN103375313B (en) * | 2012-04-25 | 2017-03-01 | 迪尔公司 | Diesel fuel supply circuit |
| CN105909379A (en) * | 2016-06-12 | 2016-08-31 | 深圳市金动科力实业有限公司 | Multifunctional V-shaped power integrated machine |
| CN105909379B (en) * | 2016-06-12 | 2018-12-07 | 深圳市金动科力实业有限公司 | A kind of Multi-functional V-shaped power all-in-one machine |
| CN112901380A (en) * | 2020-09-01 | 2021-06-04 | 太原理工大学 | Compression ignition type methanol engine fuel supply system and control method thereof |
| CN114992016A (en) * | 2022-06-20 | 2022-09-02 | 青岛双瑞海洋环境工程股份有限公司 | Ammonia fuel supply system and ship |
| CN114992016B (en) * | 2022-06-20 | 2023-12-22 | 青岛双瑞海洋环境工程股份有限公司 | Ammonia fuel supply system and ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |