CN109555627A - The diesel fuel supply system of V-type multi-cylinder diesel engine - Google Patents
The diesel fuel supply system of V-type multi-cylinder diesel engine Download PDFInfo
- Publication number
- CN109555627A CN109555627A CN201910038658.4A CN201910038658A CN109555627A CN 109555627 A CN109555627 A CN 109555627A CN 201910038658 A CN201910038658 A CN 201910038658A CN 109555627 A CN109555627 A CN 109555627A
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- Prior art keywords
- oil
- pump
- pipe
- pressure
- diesel engine
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- 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.)
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- 239000002283 diesel fuel Substances 0.000 title claims abstract description 34
- 239000000446 fuel Substances 0.000 claims abstract description 19
- 238000011045 prefiltration Methods 0.000 claims abstract description 11
- 239000003921 oil Substances 0.000 claims description 129
- 239000010727 cylinder oil Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 abstract description 12
- 238000002347 injection Methods 0.000 description 19
- 239000007924 injection Substances 0.000 description 19
- 239000003208 petroleum Substances 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000002828 fuel tank Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000003796 beauty Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3827—Common rail control systems for diesel engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
- F02D41/402—Multiple injections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
本发明公开了一种V型多缸柴油机的柴油供给系统，其包括对称设置在V型气缸处的两套供油装置，每套供油装置包括：预滤器与油箱连通；预虑输油管的一端与预滤器连通；输油泵与预虑输油管的另一端连通；输油滤清管的一端与输油泵连通；滤清器与输油滤清管的另一端连通；滤清油泵管的一端与滤清器连通；高压供油泵与滤清油泵管的另一端连通；油轨管的一端与高压供油泵的出油口连通；共轨管的进油口与油轨管的另一端连通；以及多根高压油管与共轨管的出油口连通；其中每根高压油管连接一个喷油器。本发明的柴油供给系统能够解决需要单体泵过多以及占用较多位置的问题。
The invention discloses a diesel fuel supply system for a V-shaped multi-cylinder diesel engine, which comprises two sets of oil supply devices symmetrically arranged at the V-shaped cylinders, each set of oil supply devices includes: a pre-filter is communicated with an oil tank; Connected with the pre-filter; the oil pump is connected with the other end of the pre-filtering oil pipe; one end of the oil filter is connected with the oil pump; the filter is connected with the other end of the oil filter; one end of the oil filter pump is connected with the filter. The high pressure oil supply pump is connected with the other end of the filter oil pump pipe; one end of the oil rail pipe is connected with the oil outlet of the high pressure oil supply pump; the oil inlet of the common rail pipe is connected with the other end of the oil rail pipe; A high-pressure oil pipe is communicated with the oil outlet of the common rail pipe; each of the high-pressure oil pipes is connected with a fuel injector. The diesel fuel supply system of the present invention can solve the problems of requiring too many unit pumps and occupying many positions.
Description
Technical field
The present invention relates to diesel engine fuel oils to supply field, especially with regard to a kind of V-type multi-cylinder using high-pressure common-rail pipe
The diesel fuel supply system of diesel engine.
Background technique
In face of an urgent demand of world wide energy-saving emission reduction, diesel engine must further improve combustion process, and fuel oil
The performance of spraying system is to determine the key factor of combustion process.Compared to tradition machinery pump and electronically controlled unit pump, high-pressure common rail combustion
Oil spurts technology injection pressure with higher and injection pressure can be adjusted flexibly according to operating condition, injection timing and distributive value
Accurate control is able to achieve, it can be achieved that multi-injection.Therefore, Electrocontrolled high-pressure common rail is the certainty of diesel engine fuel jetting technology development
Trend.
There are following defects for the diesel fuel supply system of the V-type multi-cylinder diesel engine of the prior art:
Present V-type diesel generally matches hydraulic injection device using the in-line mechanical pump of tradition, or uses electronically controlled unit pump
With hydraulic injection device.For matching hydraulic injection device scheme using in-line mechanical pump, because can not achieve to injection timing and distributive value
Accurate control, be not able to satisfy the demand of more maximum discharge grade.The in-line corresponding cylinder of each plunger of mechanical pump.For using electricity
It controls monoblock pump and matches hydraulic injection device scheme, have a distinct increment on the basis of mechanical pump, can control injection timing and distributive value, there is one
Determine advantage.The corresponding electronically controlled unit pump of each cylinder.
The present invention proposes that a kind of solution to the problems described above is:
Using Electrocontrolled high-pressure common rail scheme, distributive value and injection timing can full working scope control, fuel injection characteristic can directly control,
Multi-injection may be implemented.High pressure co-rail system is generally made of high-pressure fuel-feed pump, Pressure energy accumulator, fuel injector and ECU.
General V-type diesel is divided into two column cylinders of left and right, and traditional way is one monoblock pump of every cylinder, supplies each cylinder
Oil, using in-line mechanical pump scheme when and the corresponding cylinder of each plunger.And use high pressure co-rail system after, plunger and
Monoblock pump does not need to correspond to the cylinder number of diesel engine, can according to need and arranges one or two high-pressure fuel-feed pump, solves to need
The problem of monoblock pump is excessive and occupies compared with multiposition.
For high-pressure fuel-feed pump, it is integrated with oil transfer pump, while having pressure accumulation chamber inside high-pressure fuel-feed pump, plunger high pressure is fuel-displaced
Afterwards, after by pressure accumulation chamber, it is divided into the external fuel feeding of one or more high pressure connections, the pressure oscillation after can avoid single cylinder fuel feeding.?
Diesel engine two sides are respectively arranged common rail pipe and high-pressure oil pipe, common rail pipe and high-pressure oil pipe along diesel engine central plane it is symmetrical or
Symmetrically.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide a kind of diesel fuel supply systems of V-type multi-cylinder diesel engine, use Electrocontrolled high-pressure total
Rail scheme, plunger and monoblock pump do not need to correspond to the cylinder number of diesel engine, can according to need and arrange that one or two high pressure supplies
Oil pump is solved the problems, such as to need monoblock pump excessive and be occupied compared with multiposition.
To achieve the above object, the present invention provides a kind of diesel fuel supply systems of V-type multi-cylinder diesel engine comprising symmetrical
Two sets of fuellers at cylinder in V-arrangement are set, and every set fueller includes: that prefilter is connected to fuel tank；Pre- worry petroleum pipeline
One end is connected to prefilter；Oil transfer pump is connected to the pre- other end for considering petroleum pipeline；One end of oil transportation filtering pipe is connected to oil transfer pump；
Filter is connected to the other end of oil transportation filtering pipe；One end of filtering oil pump pipe is connected to filter；High-pressure fuel-feed pump and filtering
The other end of oil pump pipe is connected to；One end of oily rail pipe is connected to the oil outlet of high-pressure fuel-feed pump；The oil inlet of common rail pipe and oily rail
The other end of pipe is connected to；And more high-pressure oil pipes are connected to the oil outlet of common rail pipe；Wherein every high-pressure oil pipe connects one
Fuel injector.
In a preferred embodiment, oil transfer pump is integrated in the rear portion of high-pressure fuel-feed pump.
In a preferred embodiment, high-pressure fuel-feed pump includes at least one oil outlet, and at least the one of high-pressure fuel-feed pump
The quantity of a oil outlet is corresponding with the quantity of oily rail pipe.
In a preferred embodiment, common rail pipe includes at least one oil inlet, at least one oil inlet of common rail pipe
Quantity it is corresponding with the quantity of oily rail pipe.
In a preferred embodiment, common rail pipe further includes multiple oil outlets, the quantity of multiple oil outlets of common rail pipe
It is corresponding with the quantity of more high-pressure oil pipes.
In a preferred embodiment, the quantity of multiple oil outlets of common rail pipe is equal to the cylinder of V-type multi-cylinder diesel engine
The half of quantity.
In a preferred embodiment, the diesel fuel supply system of V-type multi-cylinder diesel engine further includes oil return pipe, with V-type
The cylinder oil return portion of multi-cylinder diesel engine is connected to, and the low pressure oil pocket of oil return pipe connection high-pressure fuel-feed pump.
In a preferred embodiment, the diesel fuel supply system of V-type multi-cylinder diesel engine further includes oil pump terminal pad, high pressure
Oil feed pump is fixed on the two sides of the gear chamber of V-type multi-cylinder diesel engine by oil pump terminal pad.
Compared with prior art, the diesel fuel supply system of V-type multi-cylinder diesel engine of the invention, which has the advantages that, adopts
With Electrocontrolled high-pressure common rail scheme, distributive value and injection timing can full working scope control, fuel injection characteristic can directly control, may be implemented more
Secondary injection.After high pressure co-rail system, plunger and monoblock pump do not need to correspond to the cylinder number of diesel engine, can according to need cloth
One or two high-pressure fuel-feed pump is set, solve the problems, such as to need monoblock pump excessive and is occupied compared with multiposition.It is defeated using being integrated with
The high-pressure fuel-feed pump of oil pump, while having pressure accumulation chamber inside high-pressure fuel-feed pump, after plunger high pressure is fuel-displaced, after pressure accumulation chamber, it is divided into
One or more external fuel feeding of high pressure connection, the pressure oscillation after can avoid single cylinder fuel feeding.It is respectively arranged altogether in diesel engine two sides
Rail pipe and high-pressure oil pipe, common rail pipe and high-pressure oil pipe along diesel engine central plane it is symmetrical or rotational symmetry, be conducive to arrangement and
And it is beautiful.
Detailed description of the invention
Fig. 1 is the schematic diagram according to the diesel fuel supply system of one embodiment of the present invention.
Main appended drawing reference explanation:
1- prefilter, 2- filter, 3- consider petroleum pipeline, 4- oil transportation filtering pipe, 5- filtering oil pump pipe, 6- high-pressure oil feed in advance
Pump, 7- oil pump terminal pad, 8- machine oil oil inlet pipe, 9- oil rail pipe, 10- common rail pipe, 11- high-pressure oil pipe, 12- oil return pipe, 13- oil spout
Device, 14- oil transfer pump.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention
Shield range is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
As shown in FIG. 1, FIG. 1 is the schematic diagrames of diesel fuel supply system according to an embodiment of the present invention.According to this hair
A kind of diesel fuel supply system of V-type multi-cylinder diesel engine of bright preferred embodiment comprising two be symmetricly set at cylinder in V-arrangement
Fueller is covered, every set fueller includes: that prefilter 1 is connected to fuel tank；Pre- one end for considering petroleum pipeline 3 is connected to prefilter 1；
Oil transfer pump 14 is connected to the pre- other end for considering petroleum pipeline 3；One end of oil transportation filtering pipe 4 is connected to oil transfer pump 14；Filter 2 with it is defeated
The other end of oily filter pigging 4 is connected to；One end of filtering oil pump pipe 5 is connected to filter 2；High-pressure fuel-feed pump 6 and filtering oil pump pipe 5
The other end connection；One end of oily rail pipe 9 is connected to the oil outlet of high-pressure fuel-feed pump 6；The oil inlet of common rail pipe 10 and oily rail pipe 9
The other end connection；And more high-pressure oil pipes 11 are connected to the oil outlet of common rail pipe 10；Wherein every high-pressure oil pipe 11 connects
One fuel injector 13.
In some embodiments, oil transfer pump 14 is integrated in the rear portion of high-pressure fuel-feed pump 6.High-pressure fuel-feed pump 6 includes at least
One oil outlet, the quantity of at least one oil outlet of high-pressure fuel-feed pump 6 are corresponding with the quantity of oily rail pipe 9.
In some embodiments, common rail pipe 10 includes at least one oil inlet, at least one oil inlet of common rail pipe 10
Quantity it is corresponding with the quantity of oily rail pipe 9.Common rail pipe 10 further includes multiple oil outlets, the number of multiple oil outlets of common rail pipe 10
It measures corresponding with the quantity of more high-pressure oil pipes 11.The quantity of multiple oil outlets of common rail pipe 10 is equal to V-type multi-cylinder diesel engine
The half of number of cylinders.
In some embodiments, the diesel fuel supply system of V-type multi-cylinder diesel engine further includes oil return pipe 12, oil pump terminal pad
7 and filter block, oil return pipe 12 be connected to the cylinder oil return portion of V-type multi-cylinder diesel engine, and oil return pipe 12 is connected to high-pressure fuel-feed pump 6
Low pressure oil pocket.High-pressure fuel-feed pump 6 is fixed on the two sides of the gear chamber of V-type multi-cylinder diesel engine by oil pump terminal pad 7.Diesel oil pre-flock
Device 1 and diesel fuel filter 2 are fixed on the cylinder block side of V-type multi-cylinder diesel engine by filter block.In some embodiments, V-type
The diesel fuel supply system of multi-cylinder diesel engine further includes machine oil oil inlet pipe 8, the lubrication for oil supply system.
The low pressure diesel of diesel fuel supply system flows to: when system works, diesel oil is by being integrated on 6 rear portion of high-pressure fuel-feed pump
Diesel oil, is extracted into prefilter 1 by 14 oil suction of oil transfer pump effect out of fuel tank, considers the arrival oil transfer pump 14 of petroleum pipeline 3, diesel oil using pre-
After the pressurization of oil transfer pump 14, diesel fuel filter 2 is reached by oil transportation filtering pipe 4；By the filtered bavin of diesel fuel filter 2
Oil reaches high-pressure fuel-feed pump 6 by filtering oil pump pipe 5.And the extra diesel oil of each cylinder injector 13 passes through oil return pipe 12 and high pressure
The low pressure oil pocket of oil feed pump 6 is connected, and the low pressure oil return with high-pressure fuel-feed pump 6 finally flows back into fuel tank after converging.
The high-pressure diesel of diesel fuel supply system flows to: the diesel oil after high-pressure fuel-feed pump 6, pressure rise pass through oily rail
Pipe 9 reaches the oil inlet of common rail pipe 10, then reaches each cylinder by high-pressure oil pipe 11 corresponding with every cylinder injector 13 again
Fuel injector 13 carries out oil spout work.High-pressure fuel-feed pump 6 is typically provided with one to two high-pressure oil outlets, and is arranged on common rail pipe 10
There is oil inlet corresponding with the oil outlet quantity of high-pressure fuel-feed pump 6；The quantity of oily rail pipe 9 and the oil outlet number of high-pressure fuel-feed pump 6
Amount and the oil inlet quantity of common rail pipe 10 are also corresponding；And the fuel-displaced of corresponding cylinder of diesel engine number half is provided on common rail pipe 10
Mouthful, that is to say, that a common rail pipe 10 can be simultaneously to the cylinder fuel feeding of the side of V-type multi-cylinder diesel engine.
In conclusion
1, for high-power V-shaped high-speed diesel engine, since number of cylinders is more, and diesel engine length dimension is larger, and current one
As use electronically controlled unit pump system, one monoblock pump of every cylinder, space hold size is big, and monoblock pump need driving moment it is non-
Chang great needs to consume more energy, requires the camshaft of driving monoblock pump very high；Meanwhile the peak value driving force of monoblock pump
Moment ratio is larger, be easy to cause the camshaft of transmission and the failure of gear.After electronic control system, peak value driving moment
It is small, do not need setting drive cam shaft.And the type for cylinder diameter less than 180, one common rail pipe of unilateral setting is than more of setting
Common rail pipe is advantageous, at low cost, and rail pressure is more stable.
2, after using electronic control common rail system, distributive value and injection timing can full working scope control, fuel injection characteristic can directly control,
Multi-injection may be implemented；Lower combustion noise and oil consumption can be achieved.
3, by the electronics oil transfer pump being integrated on diesel oil prefilter, can before diesel engine starting rapid deflation low-voltage tube
Air in road, achievees the purpose that quick start.For applying in the backup power source field of the high requirements such as various data centers,
It is most important.High-pressure fuel-feed pump band pressure accumulation chamber, includes multiple plungers, it is constant to guarantee that high pressure goes out oil pressure.
4, the setting for furthermore passing through Diesel Engine Control program, can cancel the high pressure kicks mouth on common rail pipe, be system pipes
Road arrangement is more easier and beauty.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering
With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910038658.4A CN109555627A (en) | 2019-01-16 | 2019-01-16 | The diesel fuel supply system of V-type multi-cylinder diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910038658.4A CN109555627A (en) | 2019-01-16 | 2019-01-16 | The diesel fuel supply system of V-type multi-cylinder diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109555627A true CN109555627A (en) | 2019-04-02 |
Family
ID=65872920
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910038658.4A Pending CN109555627A (en) | 2019-01-16 | 2019-01-16 | The diesel fuel supply system of V-type multi-cylinder diesel engine |
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| CN (1) | CN109555627A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305984A (en) * | 2020-03-31 | 2020-06-19 | 广西玉柴机器股份有限公司 | In-line large multi-cylinder diesel engine diesel oil supply system for reducing pressure fluctuation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6474305B1 (en) * | 1999-12-03 | 2002-11-05 | Isuzu Motors Limited | V-type diesel engine with common rail |
| CN202938975U (en) * | 2012-11-27 | 2013-05-15 | 中国第一汽车股份有限公司 | Structure for eliminating obstruction faults of common-rail low-pressure oil inlet/return pipe |
| CN107366597A (en) * | 2017-09-15 | 2017-11-21 | 河南柴油机重工有限责任公司 | A kind of layout pattern of electronic control system in marine high-speed high-power diesel engine |
| CN109184998A (en) * | 2018-11-09 | 2019-01-11 | 广西玉柴机器股份有限公司 | The high pressure co-rail system of V-type multi-cylinder diesel engine |
| CN209324569U (en) * | 2019-01-16 | 2019-08-30 | 广西玉柴机器股份有限公司 | The diesel fuel supply system of V-type multi-cylinder diesel engine |
-
2019
- 2019-01-16 CN CN201910038658.4A patent/CN109555627A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6474305B1 (en) * | 1999-12-03 | 2002-11-05 | Isuzu Motors Limited | V-type diesel engine with common rail |
| CN202938975U (en) * | 2012-11-27 | 2013-05-15 | 中国第一汽车股份有限公司 | Structure for eliminating obstruction faults of common-rail low-pressure oil inlet/return pipe |
| CN107366597A (en) * | 2017-09-15 | 2017-11-21 | 河南柴油机重工有限责任公司 | A kind of layout pattern of electronic control system in marine high-speed high-power diesel engine |
| CN109184998A (en) * | 2018-11-09 | 2019-01-11 | 广西玉柴机器股份有限公司 | The high pressure co-rail system of V-type multi-cylinder diesel engine |
| CN209324569U (en) * | 2019-01-16 | 2019-08-30 | 广西玉柴机器股份有限公司 | The diesel fuel supply system of V-type multi-cylinder diesel engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305984A (en) * | 2020-03-31 | 2020-06-19 | 广西玉柴机器股份有限公司 | In-line large multi-cylinder diesel engine diesel oil supply system for reducing pressure fluctuation |
| CN111305984B (en) * | 2020-03-31 | 2024-06-11 | 广西玉柴船电动力有限公司 | In-line large multi-cylinder diesel engine diesel oil supply system capable of reducing pressure fluctuation |
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Application publication date: 20190402 |
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