CN108266294A - Engine fuel oil system and engine - Google Patents
Engine fuel oil system and engine Download PDFInfo
- Publication number
- CN108266294A CN108266294A CN201711445892.6A CN201711445892A CN108266294A CN 108266294 A CN108266294 A CN 108266294A CN 201711445892 A CN201711445892 A CN 201711445892A CN 108266294 A CN108266294 A CN 108266294A
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- CN
- China
- Prior art keywords
- fuel
- pump
- engine
- oil
- fuel oil
- 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
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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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention belongs to technical field of engines, and in particular to a kind of engine fuel oil system and engine.Engine fuel oil system of the present invention, including the electrically operated fuel pump of changeable flow, the electrically operated fuel pump is used to pump out the fuel oil in fuel tank, and the fuel oil is delivered to by low pressure line in high-pressure pump；Fuel filter, the fuel filter is set on the fuel pipe between the electrically operated fuel pump and the high-pressure pump, for the fuel oil pumped out from the electrically operated fuel pump to be filtered；High-pressure pump, the high-pressure pump are used to be delivered to common rail pipe through high-pressure oil pipe after the fuel oil is pressurizeed.By using engine fuel oil system of the present invention and engine, optimize the low-pressure system configuration of fuel system with can having, reduce amount of parts, the reliability of system is improved simultaneously, the flow for making electrically operated fuel pump is unrelated with the rotating speed of engine, solves the problem of low speed fuel feeding is partially slow, and high speed fuel feeding is superfluous.
Description
Technical field
The invention belongs to technical field of engines, and in particular to a kind of engine fuel oil system and engine.
Background technology
In existing engine, particularly fuel oil (for example, diesel oil) engine, oil will be come from usually using high-pressure oil pump
The low-voltage fuel (for example, low pressure diesel) of case is converted into high pressure fuel.For example, Fig. 1 is a kind of engine combustion of the prior art
The hydraulic schematic diagram of oil system in engine start, is stored in the fuel oil in the first fuel tank 10' in mechanical first oil transportation
It pumps and the first fuel gauging valve 30' is transported to by low pressure pipe after fuel filter filters under the pumping effect of 20'.With
Afterwards, fuel oil is transported to the first high-pressure pump 40', and adding through the first high-pressure pump 40' after the first fuel gauging valve 30' meterings
Common rail pipe is entered by high-pressure oil pipe after pressure, then, fuel oil is assigned to fuel injector from common rail pipe and is injected into cylinder.This
Outside, oil-filled exhaust when the first electrodynamic pump 50' is used to start is added in the leading portion of the first oil transfer pump 20', mechanical first is defeated
Integrated bypass valve is gone back on oil pump 20' for being vented, pressure limiting valve is used to play safe work when the back pressure of the first oil transfer pump 20' is excessive
With.
From structure, the first oil transfer pump 20' is integrated on high-pressure oil pump, leading portion is added with the first electrodynamic pump for exhaust again
50', structure and parts are complex and failure rate is higher, characteristic of fuel delivery and hair of the first oil transfer pump 20' on high-pressure oil pump
Motivation rotating speed is related, has the problem of low speed fuel feeding is partially slow, and high speed fuel feeding is superfluous, does not embody the spy to match with engine
Property, cause wasting for energy.Functionally, the back pressure after the first oil transfer pump 20' does not monitor, only equipped with safety valve,
There is no from the viewpoint of practical application, maintained by milimeter number or hourage to replace filter core, cause filter core
Utilization rate is relatively low, and the energy causes to waste.
Invention content
The purpose of the present invention is to solve above-mentioned at least one problem, which is by the following technical programs
It realizes.
The present invention proposes a kind of engine fuel oil system, including：
The electrically operated fuel pump of changeable flow, the electrically operated fuel pump is for the fuel oil in fuel tank to be pumped out, and by institute
Fuel oil is stated to be delivered in high-pressure pump by low pressure line；
Fuel filter, the fuel filter are set on the fuel pipe between the electrically operated fuel pump and the high-pressure pump
On, for the fuel oil pumped out from the electrically operated fuel pump to be filtered；
High-pressure pump, the high-pressure pump is used to be delivered to common rail pipe through high-pressure oil pipe after the fuel oil is pressurizeed, then, described
Fuel oil is assigned in fuel injector from the common rail pipe and is ejected into cylinder by the fuel injector.
Further, the fuel filter is secondary fuel oil filter.
Further, the secondary fuel oil filter is equipped with the sensor for blocking monitoring.
Further, the electrically operated fuel pump is controlled by ECU.
Further, fuel preliminary filter is further included, the fuel preliminary filter is set on the electrically operated fuel pump and the fuel tank
Between fuel pipe on.
Further, fuel gauging valve is further included, the fuel gauging valve is set on the fuel filter and the high pressure
On fuel pipe between pump, for measuring the amount of fuel for entering the high-pressure pump.
Further, the zero delivery on the oil return line between the fuel gauging valve and the fuel tank is further included
Hole, the zero delivery hole are used to make the minor leakage by the fuel gauging valve in the case where the fuel gauging valve is closed
Fuel oil be back to fuel tank via the zero delivery hole.
The invention also provides a kind of engine, including engine fuel oil system described above.
By using engine fuel oil system of the present invention and engine, optimize the low pressure of fuel system with can having
System configuration reduces amount of parts, while improve the reliability of system, makes the flow and engine of electrically operated fuel pump
Rotating speed is unrelated, solves the problem of low speed fuel feeding is partially slow, and high speed fuel feeding is superfluous.
By using engine fuel oil system of the present invention and engine, it is used for by being added on secondary fuel oil filter
Block the sensor of monitoring, for security protection and the function that filter core is instructed to maintain, improve the inspection to fuel system parts
Survey means facilitate the investigation rapid localized reason of failure.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this field
Technical staff will become clear.Attached drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
Fig. 1 is the hydraulic schematic diagram of engine fuel oil system in the prior art；
Fig. 2 is the hydraulic schematic diagram of the embodiment of the present invention.
Respectively label represents as follows in attached drawing：
10'：First fuel tank, 20'：First oil transfer pump, 30'：First fuel gauging valve, 40'：First high-pressure pump, 50'：The
One electrodynamic pump；
10：Fuel tank, 20：Electrically operated fuel pump, 30：Fuel gauging valve, 40：High-pressure pump, 50：Zero delivery hole.
Specific embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although this public affairs is shown in attached drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.It is to be able to be best understood from the disclosure, and can be by this public affairs on the contrary, providing these embodiments
The range opened completely is communicated to those skilled in the art.
Fig. 2 is the hydraulic schematic diagram of the embodiment of the present invention.Engine fuel oil system includes in the present embodiment：Changeable flow
Electrically operated fuel pump 20, fuel filter and high-pressure pump 40.
The electrically operated fuel pump 20 of changeable flow is used to pump out the fuel oil in fuel tank 10, and fuel oil is passed through low-voltage tube
Road is delivered in high-pressure pump 40.
Fuel filter is set on fuel pipe between electrically operated fuel pump 20 and high-pressure pump 40, for will be from electronic oil transportation
The fuel oil pumped out in pump 20 is filtered.
High-pressure pump 40 is used to be delivered to common rail pipe through high-pressure oil pipe after fuel oil is pressurizeed, and then, fuel oil is divided from common rail pipe
It is fitted in fuel injector and is ejected into cylinder by fuel injector.
Traditional mechanical oil transfer pump is replaced by using the electrically operated fuel pump of regulating flow quantity, by electrically operated fuel pump 20
The adjusting of flow and the rotating speed of engine are independent so that engine is obviously improved in the starting capability of low speed, while at a high speed
Section can control flow to reduce unnecessary waste, reduce the energy that driving electrically operated fuel pump is consumed.In addition it is electronic defeated
Oil pump 20 facilitates complete machine to a certain extent to the caliber demand smaller of fuel pipe, the flow demand smaller of filter
Reduction in arrangement and cost.
Further, the fuel filter in the present embodiment is secondary fuel oil filter, is equipped with to hinder on secondary fuel oil filter
Fill in the sensor of monitoring.
Addition is for blocking the sensor of monitoring on secondary fuel oil filter, for security protection and the work(that filter core is instructed to maintain
Energy reduces the replacement number of filter core, improves the utilization rate of the energy.
Further, electrically operated fuel pump 20 is controlled by ECU.
The fuel flow of electrically operated fuel pump 20 is controlled to adjust by ECU, the adjusting for making fuel flow is more rapid reliable.
Further, the engine fuel oil system in the present embodiment further includes fuel preliminary filter.Fuel preliminary filter is set on electricity
On dynamic fuel pipe between oil transfer pump 20 and fuel tank 10.Primary mistake is carried out to the fuel oil in fuel tank 10 by fuel preliminary filter
Filter, when fuel oil carries out secondary filter after electrically operated fuel pump 20 pumps out by secondary fuel oil filter.Fuel oil product after filtering twice
Matter higher reduces the generation of impurity, reduces the possibility that impurity blocks valve opening, improves the reliability of system operation.
Further, the engine fuel oil system in the present embodiment further includes fuel gauging valve 30.Fuel gauging valve 30 is set
On fuel pipe between fuel filter and high-pressure pump 40, for measuring the amount of fuel into high-pressure pump 40.
Further, the engine fuel oil system in the present embodiment is further included between fuel gauging valve 30 and fuel tank 10
Oil return line on zero delivery hole 50.When the fuel oil excess of supply, fuel gauging valve 30 is closed, and passes through fuel gauging valve
The fuel oil of minor leakage can be back to fuel tank 10 via zero delivery hole 50, effective low land prevents the fuel oil leaked out from entering
Into high pressure chest, rail pressure is caused to transfinite, influence the normal operation of engine.
By using engine fuel oil system of the present invention and engine, optimize the low pressure of fuel system with can having
System configuration reduces amount of parts, while improve the reliability of system, makes the flow and engine of electrically operated fuel pump
Rotating speed is unrelated, solves the problem of low speed fuel feeding is partially slow, and high speed fuel feeding is superfluous.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Subject to enclosing.
Claims (8)
1. a kind of engine fuel oil system, which is characterized in that including：
The electrically operated fuel pump of changeable flow, the electrically operated fuel pump is for the fuel oil in fuel tank to be pumped out, and by the combustion
Oil is delivered to by low pressure line in high-pressure pump；
Fuel filter, the fuel filter are set on the fuel pipe between the electrically operated fuel pump and the high-pressure pump,
For the fuel oil pumped out from the electrically operated fuel pump to be filtered；
High-pressure pump, the high-pressure pump are used to be delivered to common rail pipe through high-pressure oil pipe after the fuel oil is pressurizeed, then, the fuel oil
It is assigned in fuel injector from the common rail pipe and is ejected into cylinder by the fuel injector.
2. engine fuel oil system according to claim 1, which is characterized in that the fuel filter is fuel oil refined filtration
Device.
3. engine fuel oil system according to claim 2, which is characterized in that the secondary fuel oil filter is equipped with to hinder
Fill in the sensor of monitoring.
4. engine fuel oil system according to any one of claim 1-3, which is characterized in that the electrically operated fuel pump leads to
ECU is crossed to be controlled.
5. engine fuel oil system according to any one of claim 1-3, which is characterized in that further include fuel oil coarse filtration
Device, the fuel preliminary filter are set on the fuel pipe between the electrically operated fuel pump and the fuel tank.
6. engine fuel oil system according to any one of claim 1-3, which is characterized in that further include fuel gauging
Valve, the fuel gauging valve are set on the fuel pipe between the fuel filter and the high-pressure pump, are entered for measuring
The amount of fuel of the high-pressure pump.
7. engine fuel oil system according to claim 6, which is characterized in that further include set on the fuel gauging valve and
Zero delivery hole on oil return line between the fuel tank, the zero delivery hole are used for situation about being closed in the fuel gauging valve
Under make to be back to fuel tank via the zero delivery hole by the fuel oil of the minor leakage of the fuel gauging valve.
8. a kind of engine, which is characterized in that including the engine fuel oil system described in any one of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711445892.6A CN108266294A (en) | 2017-12-27 | 2017-12-27 | Engine fuel oil system and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711445892.6A CN108266294A (en) | 2017-12-27 | 2017-12-27 | Engine fuel oil system and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108266294A true CN108266294A (en) | 2018-07-10 |
Family
ID=62772842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711445892.6A Pending CN108266294A (en) | 2017-12-27 | 2017-12-27 | Engine fuel oil system and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108266294A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488506A (en) * | 2018-09-25 | 2019-03-19 | 潍柴动力股份有限公司 | Marine V Type engine fuel oil system and Marine V h type engine h |
| CN109611229A (en) * | 2018-12-03 | 2019-04-12 | 潍柴动力股份有限公司 | Engine oil path low pressure oil way monitoring method and engine |
| CN110360035A (en) * | 2019-08-14 | 2019-10-22 | 广西玉柴机器股份有限公司 | Promote the dedicated unit of diesel engine starting ability |
| CN110410248A (en) * | 2019-06-19 | 2019-11-05 | 三一重机有限公司 | Engine fuel oil system and engineering machinery |
| CN111520239A (en) * | 2020-03-31 | 2020-08-11 | 潍柴动力股份有限公司 | Control method and control device for low-pressure oil way of engine and low-pressure oil way system |
| CN113503216A (en) * | 2021-08-25 | 2021-10-15 | 一汽解放汽车有限公司 | Diesel engine fuel supply system and testing method thereof |
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| CN101408137A (en) * | 2007-10-12 | 2009-04-15 | 福特环球技术公司 | Fuel system for improved engine starting |
| CN102472209A (en) * | 2009-08-17 | 2012-05-23 | 罗伯特·博世有限公司 | Fuel delivery device for fuel injection device of internal combustion engine |
| CN103210205A (en) * | 2010-11-15 | 2013-07-17 | 罗伯特·博世有限公司 | Low-pressure circuit for fuel injection system and fuel injection system |
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| 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 |
| CN106321317A (en) * | 2015-06-30 | 2017-01-11 | 罗伯特·博世有限公司 | Method for determining operating parameters of a fuel pump |
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2017
- 2017-12-27 CN CN201711445892.6A patent/CN108266294A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101408137A (en) * | 2007-10-12 | 2009-04-15 | 福特环球技术公司 | Fuel system for improved engine starting |
| CN102472209A (en) * | 2009-08-17 | 2012-05-23 | 罗伯特·博世有限公司 | Fuel delivery device for fuel injection device of internal combustion engine |
| CN103210205A (en) * | 2010-11-15 | 2013-07-17 | 罗伯特·博世有限公司 | Low-pressure circuit for fuel injection system and fuel injection system |
| DE102014207303A1 (en) * | 2014-04-16 | 2015-10-22 | Robert Bosch Gmbh | Fuel system for an internal combustion engine |
| CN204024871U (en) * | 2014-09-02 | 2014-12-17 | 安徽江淮汽车股份有限公司 | A kind of filter assembly with differential pressure pickup |
| CN106321317A (en) * | 2015-06-30 | 2017-01-11 | 罗伯特·博世有限公司 | Method for determining operating parameters of a fuel pump |
| 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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488506A (en) * | 2018-09-25 | 2019-03-19 | 潍柴动力股份有限公司 | Marine V Type engine fuel oil system and Marine V h type engine h |
| CN109611229A (en) * | 2018-12-03 | 2019-04-12 | 潍柴动力股份有限公司 | Engine oil path low pressure oil way monitoring method and engine |
| CN110410248A (en) * | 2019-06-19 | 2019-11-05 | 三一重机有限公司 | Engine fuel oil system and engineering machinery |
| CN110360035A (en) * | 2019-08-14 | 2019-10-22 | 广西玉柴机器股份有限公司 | Promote the dedicated unit of diesel engine starting ability |
| CN111520239A (en) * | 2020-03-31 | 2020-08-11 | 潍柴动力股份有限公司 | Control method and control device for low-pressure oil way of engine and low-pressure oil way system |
| CN113503216A (en) * | 2021-08-25 | 2021-10-15 | 一汽解放汽车有限公司 | Diesel engine fuel supply system and testing method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180710 |