CN103590943A - Automotive diesel oil supplying system - Google Patents
Automotive diesel oil supplying system Download PDFInfo
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- CN103590943A CN103590943A CN201310633603.0A CN201310633603A CN103590943A CN 103590943 A CN103590943 A CN 103590943A CN 201310633603 A CN201310633603 A CN 201310633603A CN 103590943 A CN103590943 A CN 103590943A
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Abstract
The invention relates to an automotive diesel oil supplying system. An oil outlet of an oil tank of the system is connected to an oil inlet of an electric pump through an oil pipe, the electric pump, a rough filter, an oil conveying pump, a fine filter and a high-pressure oil pump are connected sequentially through oil pipes, a low-pressure oil outlet of the high-pressure oil pump is connected with an oil return port of the oil tank through an oil pipe, and a high-pressure oil outlet of the high-pressure oil pump is connected with an oil sprayer through a high-pressure oil pipe; a first switch valve is connected between the oil outlet and the oil return port of the oil tank through an oil pipe, a second switch valve is connected between an oil inlet and an oil outlet of the oil conveying pump through an oil pipe, and a third switch valve is connected between an oil inlet and the low-pressure oil outlet of the high-pressure oil pump through an oil pipe. The automotive diesel oil supplying system breaks through the limitation of diesel oil grades on allowable environment temperature, improves the mobility of diesel oil at the allowable environment temperature, guarantees normal use of graded diesel oil at the temperature lower than the allowable environment temperature, and largely lowers use cost for users.
Description
Technical field
The invention belongs to the technical field of fuel oil for vehicles supply system design, particularly a kind of diesel-oil vehicle low temperature fuel oil supply system.
Background technique
Traditional derv fuel supply system parts are mainly fuel tank, strainer, oil transfer pump, fine cleaner, high pressure oil pump, high-pressure oil pipe, oil sprayer and low-voltage fuel pipeline and form; Oil transfer pump running produces negative pressure by diesel oil sucking-off from fuel tank, diesel oil enters into oil transfer pump entrance after low-voltage fuel pipeline and strainer, oil transfer pump is built diesel oil compression to press and be transported to high pressure oil pump through fine cleaner, high pressure oil pump will be transported to oil sprayer after diesel oil boil down to high pressure fuel, and oil sprayer burns fuel spraying in engine chamber.
Because derv fuel has mobility, be subject to its operating temperature to affect large shortcoming, when temperature is during lower than its freezing point temperature, diesel oil has solid and separates out, and affects flowability of diesel oil, and then affects the normal fuel injection of diesel vehicle; GB19147-2009 is divided into 6 trades mark according to the difference of Diesel oil solidifying point by Diesel oil for this reason, and their condensation point and the requirement of cold filter plugging point have been stipulated accordingly, so should select according to the actual climatic conditions of there and then the product of the different trades mark when selecting Diesel oil product, in order to avoid affect the normal operation of motor.
GB19147-2009 regulation derv fuel is divided into following 6 trades mark by condensation point:
1, No. 5 derv fuels: be applicable to relative risk and be 10% the lowest temperature and use in more than 8 ℃ areas;
2, No. 0 derv fuel: be applicable to relative risk and be 10% the lowest temperature and use in more than 4 ℃ areas;
3 ,-No. 10 derv fuels: be applicable to relative risk and be 10% the lowest temperature and use in more than-5 ℃ areas;
4 ,-No. 20 derv fuels: be applicable to relative risk and be 10% the lowest temperature and use in more than-14 ℃ areas;
5 ,-No. 35 derv fuels: be applicable to relative risk and be 10% the lowest temperature and use in more than-29 ℃ areas;
6 ,-No. 50 derv fuels: be applicable to relative risk and be 10% the lowest temperature and use in more than-44 ℃ areas;
As follows in its current techique scheme that below allowable temperature, area is used for label diesel oil at present, adopt electric heating, cooling liquid heating or engine exhaust mode of heating to heat diesel oil in fuel tank, adopt electric heating or cooling liquid mode of heating to heat low-voltage fuel pipeline, by above-mentioned mode of heating, guarantee that diesel fuel temperature reaches its allowable temperature, and then realize the normal operation of motor.
Summary of the invention
The technical problem to be solved in the present invention is to provide and a kind ofly can realizes the derv fuel supply system that label diesel oil works under ambient temperature allowable lower than it, and this system does not need diesel oil in fuel tank and fuel pipe just to heat and can realize engine work.
In order to solve the problems of the technologies described above, derv fuel supply system of the present invention comprises fuel tank, strainer, oil transfer pump, fine cleaner, high pressure oil pump and oil sprayer; Strainer, oil transfer pump, fine cleaner, high pressure oil pump are linked in sequence by oil pipe, and the low pressure oil outlet of high pressure oil pump is connected with tank drainback mouth by oil pipe, and the high pressure oil outlet of high pressure oil pump is connected with oil sprayer by high-pressure oil pipe; Characterized by further comprising electric pump, the first switch valve, second switch valve and the 3rd switch valve; The oil outlet of described fuel tank is connected to the filler opening of electric pump by oil pipe, the oil outlet of electric pump is connected to the filler opening of strainer; The first switch valve is connected in by oil pipe between the oil outlet and return opening of fuel tank, and second switch valve is connected in by oil pipe between the filler opening and oil outlet of oil transfer pump, and the 3rd switch valve is connected between the filler opening and low pressure oil outlet of high pressure oil pump by oil pipe.
Described the first switch valve can be manually operated valve or solenoid valve.
Described second switch valve can be manually operated valve, solenoid valve or one-way valve.
Described the 3rd switch valve can be manually operated valve, solenoid valve or inflow-rate of water turbine valve.
Before engine start, due to the allowable temperature of ambient temperature lower than fuel oil, the fuel oil in fuel tank can be separated out and affect its mobility because of solid; Now open the first switch valve, close second switch valve and the 3rd switch valve, by oil transfer pump and high pressure oil pump short circuit; Start electric pump, utilize electric pump by sucking-off in fuel from fuel tank, while build-up pressure, the low pressure oil way that fuel oil forms through electric pump, strainer, fine cleaner is directly got back to fuel tank, and do not flow through oil transfer pump and high pressure oil pump, fuel oil circulates in whole low pressure line like this, can effectively improve the mobility of pipeline intermediate fuel oil.During engine start, open electric pump, open the first switch valve, second switch valve, the 3rd switch valve; Under the negative pressure that fuel oil produces in oil transfer pump running by sucking-off in fuel from fuel tank, while build-up pressure, fuel oil is flowed through after the low pressure line that electric pump, strainer, oil transfer pump, fine cleaner, high pressure oil pump form, part fuel oil is got back to fuel tank from the low pressure oil outlet of high pressure oil pump, complete fuel oil circulating in whole low pressure line, another part fuel oil flows into oil sprayer through the high pressure oil outlet of high pressure oil pump, by oil sprayer, is sprayed onto in firing chamber.Fuel oil circulates in low pressure line, can improve temperature and the mobility of pipeline intermediate fuel oil.During due to engine start, fuel consumption is little, and tank drainback mouth and oil outlet close together, the fuel oil major part that enters low pressure line through fuel tank oil outlet is from low pressure line, to get back to the fuel oil of fuel tank, the mobility requirement in the time of can meeting engine start.After normal working of engine, close electric pump, close the first switch valve, open second switch valve, the 3rd switch valve; Oil transfer pump running produces negative pressure by sucking-off in fuel from fuel tank, while build-up pressure, fuel oil is flowed through after the low pressure line that electric pump, strainer, fine cleaner, high pressure oil pump form, a part is sprayed onto in firing chamber through high pressure oil outlet, the oil sprayer of high pressure oil pump, and another part is flowed out by the low pressure oil outlet of high pressure oil pump.The fuel oil that the low pressure oil outlet of high pressure oil pump flows out all directly enters low pressure line through the first switch valve; Part fuel oil in fuel tank enters low pressure oil way through oil outlet, to supplement the fuel oil lacking because of engine combustion loss in low pressure oil way.Because the fuel oil temperature directly entering in low pressure line through the first switch valve is high, good fluidity, and fuel oil temperature in fuel tank is lower, mobility is poor, both can guarantee to enter fuel oil satisfied temperature and the mobility requirement in low pressure line after mixing, thereby realize the normal operation of motor.The present invention has broken through the restriction of diesel number to ambient temperature allowable, has improved diesel oil in the mobility lower than under ambient temperature allowable, guarantees that label diesel oil is in the normal use lower than under ambient temperature allowable.For example: 0# diesel oil is normally used under-20 ℃ of ambient temperatures.Greatly reduce user's user cost, thereby can reduce diesel number classification.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is derv fuel supply system schematic diagram of the present invention.
Embodiment
As shown in Figure 1, the fuel tank oil outlet of derv fuel supply system of the present invention is connected to the filler opening of electric pump by oil pipe, electric pump, strainer, oil transfer pump, fine cleaner, high pressure oil pump are linked in sequence by oil pipe, the low pressure oil outlet of high pressure oil pump is connected with tank drainback mouth by oil pipe, and the high pressure oil outlet of high pressure oil pump is connected with oil sprayer by high-pressure oil pipe; The first switch valve 4 is connected between the oil outlet and return opening of fuel tank by oil pipe 1, plays the effect of break-make oil pipe 1, and this valve can be manually operated valve or solenoid valve; Second switch valve 5 is connected between the filler opening and oil outlet of oil transfer pump by oil pipe 2, plays the effect of break-make oil pipe 2, and this valve can be manually operated valve, solenoid valve or one-way valve; The 3rd switch valve 6 is connected between the filler opening and low pressure oil outlet of high pressure oil pump by oil pipe 3, plays the effect of break-make oil pipe 3, and this valve can be manually operated valve, solenoid valve or inflow-rate of water turbine valve.
Claims (4)
1. a derv fuel supply system, comprises fuel tank, strainer, oil transfer pump, fine cleaner, high pressure oil pump and oil sprayer; Strainer, oil transfer pump, fine cleaner, high pressure oil pump are linked in sequence by oil pipe, and the low pressure oil outlet of high pressure oil pump is connected with tank drainback mouth by oil pipe, and the high pressure oil outlet of high pressure oil pump is connected with oil sprayer by high-pressure oil pipe; Characterized by further comprising electric pump, the first switch valve (4), second switch valve (5) and the 3rd switch valve (6); The oil outlet of described fuel tank is connected to the filler opening of electric pump by oil pipe, the oil outlet of electric pump is connected to the filler opening of strainer; The first switch valve (4) is connected between the oil outlet and return opening of fuel tank by oil pipe, second switch valve (5) is connected in by oil pipe between the filler opening and oil outlet of oil transfer pump, and the 3rd switch valve (6) is connected between the filler opening and low pressure oil outlet of high pressure oil pump by oil pipe.
2. derv fuel supply system according to claim 1, is characterized in that described the first switch valve (4) is manually operated valve or solenoid valve.
3. derv fuel supply system according to claim 1, is characterized in that described second switch valve (5) is manually operated valve, solenoid valve or one-way valve.
4. derv fuel supply system according to claim 1, is characterized in that described the 3rd switch valve (6) is manually operated valve, solenoid valve or inflow-rate of water turbine valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310633603.0A CN103590943B (en) | 2013-11-29 | 2013-11-29 | A kind of derv fuel supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310633603.0A CN103590943B (en) | 2013-11-29 | 2013-11-29 | A kind of derv fuel supply system |
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| CN103590943A true CN103590943A (en) | 2014-02-19 |
| CN103590943B CN103590943B (en) | 2015-10-14 |
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| CN201310633603.0A Active CN103590943B (en) | 2013-11-29 | 2013-11-29 | A kind of derv fuel supply system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927440A (en) * | 2016-05-26 | 2016-09-07 | 潍柴动力股份有限公司 | Diesel engine and high pressure common rail fuel injection system thereof |
| CN106246429A (en) * | 2016-08-30 | 2016-12-21 | 潍柴动力股份有限公司 | Engine fuel oil system and include the electromotor of this engine fuel oil system |
| CN109026466A (en) * | 2018-08-01 | 2018-12-18 | 汽解放汽车有限公司 | A kind of diesel vehicle Han Qu positive pressure oil supply system and its fuel supply method |
| CN109441680A (en) * | 2019-01-02 | 2019-03-08 | 广西玉柴机器股份有限公司 | The diesel fuel supply system of in-line large scale multi-cylinder diesel engine |
| CN110735746A (en) * | 2019-11-06 | 2020-01-31 | 一汽解放汽车有限公司 | fuel prefilter and prefilter filtering control method |
| CN113482817A (en) * | 2021-08-17 | 2021-10-08 | 河南柴油机重工有限责任公司 | Pump-nozzle fuel injection supply system |
| CN114458489A (en) * | 2022-02-16 | 2022-05-10 | 一汽解放汽车有限公司 | Fuel supply system and fuel supply method thereof |
| CN114508451A (en) * | 2022-02-16 | 2022-05-17 | 一汽解放汽车有限公司 | Oil pump assembly and diesel engine assembly |
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| DE19832842C1 (en) * | 1998-07-21 | 2000-02-17 | Bosch Gmbh Robert | Fuel delivery system for supplying fuel to an internal combustion engine |
| EP1156207A1 (en) * | 2000-05-19 | 2001-11-21 | Synerject Italy S.r.l. | Pump for feeding fuel to an internal combustion engine |
| JP2002195122A (en) * | 2000-12-27 | 2002-07-10 | Mikuni Corp | Fuel supply system |
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| CN201794682U (en) * | 2010-01-27 | 2011-04-13 | 张昌盛 | Device using summer diesel fuel as fuel for diesel engine in cold winter |
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| CN201953531U (en) * | 2010-12-28 | 2011-08-31 | 中国第一汽车集团公司 | Electromagnetic type independent fuel supply system with main fuel tank and auxiliary fuel tank connected in parallel |
| CN203604088U (en) * | 2013-11-29 | 2014-05-21 | 中国第一汽车股份有限公司 | Automotive diesel oil supply system |
-
2013
- 2013-11-29 CN CN201310633603.0A patent/CN103590943B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19832842C1 (en) * | 1998-07-21 | 2000-02-17 | Bosch Gmbh Robert | Fuel delivery system for supplying fuel to an internal combustion engine |
| EP1156207A1 (en) * | 2000-05-19 | 2001-11-21 | Synerject Italy S.r.l. | Pump for feeding fuel to an internal combustion engine |
| JP2002195122A (en) * | 2000-12-27 | 2002-07-10 | Mikuni Corp | Fuel supply system |
| KR100534731B1 (en) * | 2003-09-19 | 2005-12-07 | 기아자동차주식회사 | Fuel pump assembly for vehicle |
| CN201794682U (en) * | 2010-01-27 | 2011-04-13 | 张昌盛 | Device using summer diesel fuel as fuel for diesel engine in cold winter |
| CN102116226A (en) * | 2010-12-28 | 2011-07-06 | 中国第一汽车集团公司 | Electric-cooling liquid mixed fuel heating system |
| CN201953531U (en) * | 2010-12-28 | 2011-08-31 | 中国第一汽车集团公司 | Electromagnetic type independent fuel supply system with main fuel tank and auxiliary fuel tank connected in parallel |
| CN203604088U (en) * | 2013-11-29 | 2014-05-21 | 中国第一汽车股份有限公司 | Automotive diesel oil supply system |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927440A (en) * | 2016-05-26 | 2016-09-07 | 潍柴动力股份有限公司 | Diesel engine and high pressure common rail fuel injection system thereof |
| CN106246429A (en) * | 2016-08-30 | 2016-12-21 | 潍柴动力股份有限公司 | Engine fuel oil system and include the electromotor of this engine fuel oil system |
| CN109026466A (en) * | 2018-08-01 | 2018-12-18 | 汽解放汽车有限公司 | A kind of diesel vehicle Han Qu positive pressure oil supply system and its fuel supply method |
| CN109026466B (en) * | 2018-08-01 | 2023-08-15 | 一汽解放汽车有限公司 | Positive pressure oil supply system for cold region of diesel vehicle and oil supply method thereof |
| CN109441680A (en) * | 2019-01-02 | 2019-03-08 | 广西玉柴机器股份有限公司 | The diesel fuel supply system of in-line large scale multi-cylinder diesel engine |
| CN110735746A (en) * | 2019-11-06 | 2020-01-31 | 一汽解放汽车有限公司 | fuel prefilter and prefilter filtering control method |
| CN113482817A (en) * | 2021-08-17 | 2021-10-08 | 河南柴油机重工有限责任公司 | Pump-nozzle fuel injection supply system |
| CN114458489A (en) * | 2022-02-16 | 2022-05-10 | 一汽解放汽车有限公司 | Fuel supply system and fuel supply method thereof |
| CN114508451A (en) * | 2022-02-16 | 2022-05-17 | 一汽解放汽车有限公司 | Oil pump assembly and diesel engine assembly |
| CN114508451B (en) * | 2022-02-16 | 2023-09-26 | 一汽解放汽车有限公司 | Oil pump assembly and diesel engine assembly |
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| CN103590943B (en) | 2015-10-14 |
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Effective date of registration: 20180815 Address after: 130011 2259 Dongfeng Street, Xinxin economic and Technological Development Zone, Changchun, Jilin Co-patentee after: FAW Jiefang Automotive Co., Ltd. Patentee after: China FAW Group Corporation Address before: 130011 2259 Dongfeng Street, Xinxin economic and Technological Development Zone, Changchun, Jilin Patentee before: China FAW Group Corporation |