CN110541763A - Oil supply hydraulic automatic switching device of fuel engine - Google Patents
Oil supply hydraulic automatic switching device of fuel engine Download PDFInfo
- Publication number
- CN110541763A CN110541763A CN201910734093.3A CN201910734093A CN110541763A CN 110541763 A CN110541763 A CN 110541763A CN 201910734093 A CN201910734093 A CN 201910734093A CN 110541763 A CN110541763 A CN 110541763A
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- Prior art keywords
- oil
- pipe
- liquid
- oil supply
- outlet end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title description 7
- 239000007788 liquid Substances 0.000 claims abstract description 82
- 230000001105 regulatory effect Effects 0.000 claims abstract description 17
- 239000003921 oil Substances 0.000 description 108
- 239000002283 diesel fuel Substances 0.000 description 27
- 239000000295 fuel oil Substances 0.000 description 13
- 239000000839 emulsion Substances 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000004945 emulsification Methods 0.000 description 3
- 230000001804 emulsifying effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0602—Control of components of the fuel supply system
- F02D19/0613—Switch-over from one fuel to another
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
- F02D19/0649—Liquid fuels having different boiling temperatures, volatilities, densities, viscosities, cetane or octane numbers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0673—Valves; Pressure or flow regulators; Mixers
- F02D19/0678—Pressure or flow regulators therefor; Fuel metering valves therefor
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention discloses a hydraulic automatic switching device for oil supply of an oil-burning machine, which realizes oil-burning switching through hydraulic pressure difference and comprises an oil storage barrel, a constant-pressure oil supply assembly and a normal-pressure oil supply assembly, wherein the constant-pressure oil supply assembly comprises an oil supply pump, an oil inlet pipe, an oil guide pipe, a pressure regulating valve, a return pipe, a first one-way valve and an oil discharge pipe, and the normal-pressure oil supply assembly comprises a second one-way valve, a liquid inlet pipe and a liquid discharge pipe.
Description
Technical Field
The invention relates to the field of oil supply of oil-fired machines, in particular to an automatic oil supply switching device of an oil-fired machine.
Background
The diesel engine is driven by diesel oil, so that the economic cost is high, and the environment is seriously polluted due to more generated waste gas. Worldwide energy shortage is a well known fact and is further exacerbated as a corollary to the progressive reduction in non-renewable and storage quantities of oil. The emulsified diesel oil is a new fuel oil, can not only relieve the shortage of diesel oil in China, but also bring high economic benefit, and has great significance for energy conservation, environmental protection and economic significance when being used. When the diesel engine is used, only single oil supply can be usually adopted, when an oil way is damaged, the use of the diesel engine is influenced, the continuous full-automatic water diesel oil emulsifying machine (patent number: CN 03220321.7) in the prior art can realize the switching supply of emulsified diesel oil and diesel oil, the normal operation of the diesel engine can be ensured while the energy is saved and the environment is protected, but the emulsifying machine adopts a manual valve to realize the switching of the fuel oil, the intelligent degree is low, the operation of equipment is often required to be manually participated in, if the electromagnetic valve is adopted to realize the switching of the fuel oil, the use of the electromagnetic valve is easily influenced by the operation condition of equipment circuits, when the operation of the equipment circuits fails, the switching and the leading-out of the fuel oil are caused to be problematic, the leading-out of the emulsified diesel oil is realized by adopting a self-flowing mode, the leading-out of the emulsified diesel oil with variable quantity can possibly influence the, the existence of the emulsion not only causes the waste of resources and the interference to the subsequent emulsification process, but also causes the corrosion and the damage to the emulsifying machine.
Disclosure of Invention
In order to solve the problems, the invention discloses a hydraulic automatic switching device for oil supply of an oil-burning machine, which can realize the switching of fuel oil (emulsified diesel oil and diesel oil), the normal operation of the diesel engine can be ensured while the energy is saved and the environment is protected, the hydraulic fuel oil switching is realized, the switching between the diesel oil and the emulsified diesel oil is realized through hydraulic pressure difference, the intelligent degree is improved, the manual participation amount is reduced, meanwhile, the inconvenience of fuel oil switching and guiding caused by the operation fault of the equipment circuit is avoided, the constant-pressure fuel supply is realized, the influence on the normal operation of the subsequent parts caused by the non-quantitative guiding of the emulsified diesel oil is avoided, the emulsion in the equipment can be manually discharged after the equipment is used, the method can reduce resource waste, ensure the follow-up emulsification process, avoid the corrosion and damage of the emulsion to the equipment due to long-time detention, and prolong the service life of the equipment.
In order to achieve the above purpose, the invention provides the following technical scheme: a hydraulic automatic switching device for oil supply of an oil burning machine realizes fuel oil switching through hydraulic pressure difference.
The improved oil tank comprises an oil storage barrel, a constant-pressure oil supply assembly and a constant-pressure oil supply assembly.
As an improvement of the invention, the constant-pressure oil supply assembly comprises an oil supply pump, an oil inlet pipe, an oil guide pipe, a pressure regulating valve, a return pipe, a first one-way valve and an oil discharge pipe, and the normal-pressure oil supply assembly comprises a second one-way valve, a liquid inlet pipe and a liquid discharge pipe. The feed liquor pipe is used for diesel oil leading-in, and the fluid-discharge tube is used for diesel oil to derive, and it is leading-in that the oil pipe is used for emulsified diesel oil to advance, and the oil extraction pipe is used for emulsified diesel oil to derive.
as an improvement of the invention, the liquid outlet end of the oil storage barrel is communicated with the liquid inlet end of the oil supply pump through an oil inlet pipe, the liquid outlet end of the oil supply pump is communicated with the liquid inlet end of the first one-way valve through an oil guide pipe, the liquid outlet end of the first one-way valve is externally connected with an oil discharge pipe, the liquid inlet end of the oil guide pipe is provided with a pressure regulating valve, the liquid outlet end of the pressure regulating valve is communicated with the liquid outlet end of the oil inlet pipe through a return pipe, the liquid inlet end of the second one-way valve is externally connected with the liquid inlet pipe, the liquid outlet end of the second one-way valve is externally connected.
As an improvement of the invention, a drain outlet is formed at the liquid inlet end of the oil inlet pipe, a drain valve is arranged at the drain outlet, a first manual valve is arranged at the liquid outlet end of the oil inlet pipe, a second manual valve is arranged at the liquid outlet end of the oil guide pipe, a third manual valve is arranged at the liquid outlet end of the liquid inlet pipe, a pressure gauge is arranged outside the oil discharge pipe, and a liquid level detector and a plastic pipe liquid level meter are arranged on the outer side wall of the oil storage barrel. In the manometer test probe stretched into the oil extraction pipe, the level detector realized the inside liquid level condition accurate detection of oil storage bucket, and the inside liquid level condition visual observation of oil storage bucket is convenient for to the plastic tubing level gauge, and the oil storage bucket is used for emulsified diesel to deposit.
Compared with the prior art, the invention has the following advantages: the device is provided with a constant-pressure oil supply component and a normal-pressure oil supply component which are combined to realize the switching of fuel oil (emulsified diesel oil and diesel oil), can ensure the normal operation of a diesel engine while saving energy and protecting environment, realize the hydraulic fuel oil switching, realize the switching of the diesel oil and the emulsified diesel oil through the hydraulic pressure difference at the liquid inlet and the liquid outlet of a first check valve and a second check valve, not only improve the intelligent degree and reduce the manual participation amount, but also avoid the inconvenience of fuel oil switching and derivation due to the operation failure of equipment circuits, the arrangement of the first manual valve, the second manual valve and the third manual valve plays an auxiliary guarantee role in fuel oil switching, the arranged pressure regulating valve and the return pipe realize the constant-pressure oil supply, avoid the influence on the normal operation of subsequent parts due to the non-quantitative derivation of the emulsified diesel oil, and the arranged blowoff valve can realize the manual discharge of the emulsified liquid, the method can reduce resource waste, ensure the follow-up emulsification process, avoid the corrosion and damage of the emulsion to the equipment due to long-time detention, and prolong the service life of the equipment.
Drawings
FIG. 1 is a piping diagram of an automatic oil supply switching device for an oil engine according to the present invention;
FIG. 2 is a schematic diagram of an oil feeding structure of the oil supply pump;
FIG. 3 is a schematic view of an oil guiding structure of the oil supply pump;
List of reference numerals: 1. an oil storage barrel; 2. a constant pressure oil supply assembly; 3. a normal pressure oil supply assembly; 4. an oil supply pump; 5. an oil inlet pipe; 6. an oil guide pipe; 7. a pressure regulating valve; 8. a return pipe; 9. a first check valve; 10. an oil discharge pipe; 11. a second one-way valve; 12. a liquid inlet pipe; 13. a liquid discharge pipe; 14. a blowoff valve; 15. a first manual valve; 16. a second manual valve; 17. a third manual valve; 18. a pressure gauge; 19. a liquid level detector; 20. plastic tube level gauge.
Detailed Description
Example 1: referring to fig. 1, 2 and 3, the hydraulic automatic switching device for oil supply of an oil burning machine according to the present invention will now be described, which realizes fuel switching by hydraulic pressure difference.
example 2: referring to fig. 1, 2 and 3, the hydraulic automatic switching device for oil supply of an oil-burning machine according to the present invention will now be described, including an oil storage tank 1, a constant pressure oil supply unit 2 and a normal pressure oil supply unit 3.
Example 3: referring to fig. 1, 2, and 3, the hydraulic automatic switching device for oil supply of an oil-burning machine according to the present invention will be described, where the constant-pressure oil supply assembly 2 includes an oil supply pump 4, an oil inlet pipe 5, an oil guide pipe 6, a pressure regulating valve 7, a return pipe 8, a first check valve 9, and an oil discharge pipe 10, and the constant-pressure oil supply assembly 3 includes a second check valve 11, an oil inlet pipe 12, and a liquid discharge pipe 13.
Example 4: referring to fig. 1, 2 and 3, the hydraulic automatic switching device for oil supply of an oil-fired machine according to the present invention is described, wherein the liquid outlet end of the oil storage barrel 1 is communicated with the liquid inlet end of the oil supply pump 4 through an oil inlet pipe 5, the liquid outlet end of the oil supply pump 4 is communicated with the liquid inlet end of the first check valve 9 through an oil conduit 6, the liquid outlet end of the first check valve 9 is externally connected with an oil discharge pipe 10, the liquid inlet end of the oil conduit 6 is provided with a pressure regulating valve 7, the liquid outlet end of the pressure regulating valve 7 is communicated with the liquid outlet end of the oil inlet pipe 5 through a return pipe 8, the liquid inlet end of the second check valve 11 is externally connected with a liquid inlet pipe 12, the liquid outlet end of the second check valve 11 is externally connected with a liquid discharge pipe 13.
example 5: referring to fig. 1, 2 and 3, the hydraulic automatic switching device for oil supply of an oil-fired machine according to the present invention is described, wherein a drain outlet is formed at an inlet end of an oil inlet pipe 5, a drain valve 14 is arranged at the drain outlet, a first manual valve 15 is arranged at an outlet end of the oil inlet pipe 5, a second manual valve 16 is arranged at an outlet end of an oil guide pipe 6, a third manual valve 17 is arranged at an outlet end of an oil inlet pipe 12, a pressure gauge 18 is arranged outside an oil discharge pipe 10, and a liquid level detector 19 and a plastic pipe liquid level gauge 20 are arranged on an outer side wall of an oil storage barrel 1.
The invention can also combine at least one of the technical characteristics described in the embodiments 2, 3, 4 and 5 with the embodiment 1 to form a new implementation mode.
The working principle is as follows: the oil storage barrel is used for storing emulsified diesel oil, and the liquid inlet pipe is externally connected with diesel oil supply equipment. When the device is used, the oil supply pump operates, the first manual valve and the second manual valve are manually opened, emulsified diesel oil is discharged through the oil inlet pipe, the oil supply pump, the oil guide pipe, the first one-way valve and the oil discharge pipe, and the pressure gauge is arranged and used for detecting the internal pressure of the oil discharge pipe. The pressure regulating valve is used for regulating and controlling the liquid pressure of the liquid outlet end of the oil supply pump, so that the oil guiding amount of the oil supply pump is regulated and controlled, when the oil guiding amount of the oil supply pump is too much, the liquid pressure of the liquid outlet of the oil supply pump is higher than the set value of the pressure regulating valve, and the emulsion which is excessively led out can be returned to the liquid outlet end of the oil inlet pipe again through the pressure regulating valve and the backflow pipe, so that constant-pressure oil supply is realized. The emulsified oil is led into the oil discharge pipe, so that the liquid pressure in the oil discharge pipe is increased, the liquid pressure in the oil discharge pipe is higher than the liquid pressure in the liquid inlet pipe at the moment, and the second one-way valve is in a closed state due to hydraulic pressure difference. When carrying out the fuel and switching, the fuel feed pump stop work, first manual valve, the manual valve of second is closed, the third manual valve is opened, make its internal pressure reduce owing to do not having the leading-in of emulsified oil in the oil drain pipe, the intraductal pressure of oil drain this moment is less than the intraductal liquid pressure of inlet liquid, because the hydraulic pressure difference can make the second check valve open, diesel oil passes through the inlet liquid pipe, the second check valve, the leading-in diesel oil of fluid-discharge tube makes in it hydraulic pressure increase by force, the increase of liquid pressure can make first check valve be in the closed condition, thereby realize the fuel and switch. The first manual valve, the second manual valve and the third manual valve are arranged to play an auxiliary guarantee role in fuel oil switching. The blowdown valve is used for discharging reserved liquid in the pipeline, the liquid level detector realizes accurate detection of the liquid level condition of the liquid in the oil storage barrel, and the plastic tube liquid level meter is convenient for visual observation of the liquid level condition of the liquid in the oil storage barrel.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.
Claims (5)
1. The hydraulic automatic switching device for oil supply of the oil-fired machine is characterized in that the device realizes oil-fired switching through hydraulic pressure difference.
2. The hydraulic automatic switching device for oil supply of the oil engine according to claim 1, comprising an oil storage barrel (1), a constant pressure oil supply assembly (2) and a normal pressure oil supply assembly (3).
3. The hydraulic automatic switching device for oil supply of an oil engine according to claim 2, wherein the constant pressure oil supply unit (2) comprises an oil supply pump (4), an oil inlet pipe (5), an oil guide pipe (6), a pressure regulating valve (7), a return pipe (8), a first check valve (9) and an oil discharge pipe (10), and the constant pressure oil supply unit (3) comprises a second check valve (11), an oil inlet pipe (12) and a liquid discharge pipe (13).
4. The oil supply hydraulic automatic switching device of the oil-fired machine according to claim 3, wherein the liquid outlet end of the oil storage barrel (1) is communicated with the liquid inlet end of the oil supply pump (4) through an oil inlet pipe (5), the liquid outlet end of the oil supply pump (4) is communicated with the liquid inlet end of the first check valve (9) through an oil guide pipe (6), the liquid outlet end of the first check valve (9) is externally connected with an oil discharge pipe (10), the liquid inlet end of the oil guide pipe (6) is provided with a pressure regulating valve (7), the liquid outlet end of the pressure regulating valve (7) is communicated with the liquid outlet end of the oil inlet pipe (5) through a return pipe (8), the liquid inlet end of the second check valve (11) is externally connected with an oil inlet pipe (12), the liquid outlet end is externally connected with a liquid discharge pipe (13), and the liquid outlet end of the liquid discharge pipe (13) is communicated with.
5. The hydraulic automatic switching device for oil supply of the oil-fired machine according to claim 4, wherein a drain outlet is formed at the inlet end of the oil inlet pipe (5), a drain valve (14) is arranged at the drain outlet, a first manual valve (15) is arranged at the outlet end of the oil inlet pipe (5), a second manual valve (16) is arranged at the outlet end of the oil guide pipe (6), a third manual valve (17) is arranged at the outlet end of the oil inlet pipe (12), a pressure gauge (18) is arranged outside the oil discharge pipe (10), and a liquid level detector (19) and a plastic pipe liquid level meter (20) are arranged on the outer side wall of the oil storage barrel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910734093.3A CN110541763A (en) | 2019-08-09 | 2019-08-09 | Oil supply hydraulic automatic switching device of fuel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910734093.3A CN110541763A (en) | 2019-08-09 | 2019-08-09 | Oil supply hydraulic automatic switching device of fuel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110541763A true CN110541763A (en) | 2019-12-06 |
Family
ID=68710201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910734093.3A Pending CN110541763A (en) | 2019-08-09 | 2019-08-09 | Oil supply hydraulic automatic switching device of fuel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110541763A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1335464A (en) * | 2001-05-15 | 2002-02-13 | 黄鲁生 | Internally recycling emulsified-oil preparing method and equipment |
| CN2605393Y (en) * | 2003-03-11 | 2004-03-03 | 周毕华 | Continuous fully-automatic water disel emulsifying machine |
| US20110155102A1 (en) * | 2009-12-31 | 2011-06-30 | Indopar B.V. | Direct injection bi-fuel system for combustion engines |
| CN202779216U (en) * | 2012-07-13 | 2013-03-13 | 河北钢铁股份有限公司唐山分公司 | Emulsion backwash recycling and reusing device |
| CN103987944A (en) * | 2011-12-16 | 2014-08-13 | 罗伯特·博世有限公司 | FUEL SYSTEM FOR INTERNAL COMBUSTION ENGINE capable of being operated with AT LEAST TWO FUEL TYPES |
| US20140238351A1 (en) * | 2011-11-16 | 2014-08-28 | Westport Power Inc. | Method And Apparatus For Pumping Fuel To A Fuel Injection System |
| WO2014193236A1 (en) * | 2013-05-30 | 2014-12-04 | Indopar B.V. | A bi-fuel system and a method for operating such a system |
| CN210889134U (en) * | 2019-08-09 | 2020-06-30 | 周毕华 | Oil supply hydraulic automatic switching device of fuel engine |
-
2019
- 2019-08-09 CN CN201910734093.3A patent/CN110541763A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1335464A (en) * | 2001-05-15 | 2002-02-13 | 黄鲁生 | Internally recycling emulsified-oil preparing method and equipment |
| CN2605393Y (en) * | 2003-03-11 | 2004-03-03 | 周毕华 | Continuous fully-automatic water disel emulsifying machine |
| US20110155102A1 (en) * | 2009-12-31 | 2011-06-30 | Indopar B.V. | Direct injection bi-fuel system for combustion engines |
| US20140238351A1 (en) * | 2011-11-16 | 2014-08-28 | Westport Power Inc. | Method And Apparatus For Pumping Fuel To A Fuel Injection System |
| CN103987944A (en) * | 2011-12-16 | 2014-08-13 | 罗伯特·博世有限公司 | FUEL SYSTEM FOR INTERNAL COMBUSTION ENGINE capable of being operated with AT LEAST TWO FUEL TYPES |
| CN202779216U (en) * | 2012-07-13 | 2013-03-13 | 河北钢铁股份有限公司唐山分公司 | Emulsion backwash recycling and reusing device |
| WO2014193236A1 (en) * | 2013-05-30 | 2014-12-04 | Indopar B.V. | A bi-fuel system and a method for operating such a system |
| CN210889134U (en) * | 2019-08-09 | 2020-06-30 | 周毕华 | Oil supply hydraulic automatic switching device of fuel engine |
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