CN109083784A - Prevent the diesel fuel filter of engine start difficulty - Google Patents
Prevent the diesel fuel filter of engine start difficulty Download PDFInfo
- Publication number
- CN109083784A CN109083784A CN201811174715.3A CN201811174715A CN109083784A CN 109083784 A CN109083784 A CN 109083784A CN 201811174715 A CN201811174715 A CN 201811174715A CN 109083784 A CN109083784 A CN 109083784A
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- China
- Prior art keywords
- filter
- oil
- tank shell
- diesel fuel
- 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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Classifications
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- 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)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of diesel fuel filters for preventing engine start difficulty.The diesel fuel filter includes: element kit comprising: filter tank shell and filter paper, the filter tank shell includes: cylinder and end cap, and the port which is located at cylinder forms filter space；The filter paper is encapsulated in filter tank shell by the end cap of filter tank shell, and filter space is isolated into and dirty side and clean side；And filter seat, it is threadedly coupled with the end cap of the filter tank shell, and be sealed by O-ring；The filter seat has oil road and oil input channel, and the oil input channel is communicated with the dirty side of filter tank shell filter space, and the oil road is communicated with the clean side of filter tank shell filter space, and the oil road is provided with check valve.After the diesel fuel filter can effectively avoid engine because shutting down, the problem of fuel oil between oil transfer pump and filter is inhaled into filter and engine difficulty is caused to start.
Description
Technical field
The present invention relates to engine arts, especially with regard to a kind of diesel fuel filter for preventing engine start difficulty.
Background technique
Important component of the diesel fuel filter as engine fuel oil system, major function are by the nocuousness in fuel oil
Impurity and moisture etc. are separated from fuel oil, make to enter each inside parts of engine fuel oil system and the indoor fuel oil of burning
It more cleans, protects the normal work of engine, reduce abrasion, avoid blocking, improve discharge, improve engine life etc..
Diesel fuel filter is mainly made of filter seat and element kit, is connected through a screw thread between filter block and filter core,
The form of type circle sealing is combined together；There are oil road and oil input channel on filter seat, into and out of mutually indepedent between oil duct, mutually
It does not communicate directly；Element kit is mainly made of filter tank shell and filter paper, and filter paper is encapsulated in filter tank shell, and filter tank is isolated into
The dirty side communicated with oil input channel and the clean side communicated with oil road.Filter paper is as diesel fuel filter filtering function most critical
Component part, the characteristic with oleophilic drainage and isolation particulate matter, i.e. fuel oil are very easy to through the filter paper in element kit,
And particulate matter and water have then largely been isolated in the dirty side of filter core.
Oil transfer pump operating makes oil transfer pump to generating negative pressure between fuel tank, the fuel oil (dirty oil) in fuel tank under the action of negative pressure from
It is flowed out in fuel tank, element kit is entered by the oil input channel of filter and is filtered to obtain clean fuel oil, clean fuel oil
From the oil road of filter flow out, enter between the components such as oil transfer pump, injection pump, common rail pipe, the fuel injector of engine into
Row pressurization, injection, burning etc..In the process of running due to engine, filter is constantly in negative pressure state, when engine is shut down
When, oil transfer pump shuts down, and the clean side of filter under the action of negative pressure, can will be in the oil pipe between oil transfer pump and filter at this time
The fuel oil of storage is drawn into filter.When engine is restarted next time, oil transfer pump starts running under the action of starter,
At this time due to being directly connected between the clean side of filter and oil transfer pump, the fuel oil between oil transfer pump and filter can be in filtering
It is inhaled into filter under the suction function of device, since what is stored in the oil pipe between oil transfer pump and filter is not fuel oil,
But air, cause engine fuel rail pressure that can not establish, engine can not start or start time extension.
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 simple and reasonable diesel fuel filter for preventing engine start difficulty,
This prevents the diesel fuel filter of engine start difficulty by the way that one-way valve structures are arranged in the oil road on filter seat, can have
Effect avoid engine because shutting down after, the fuel oil between oil transfer pump and filter is inhaled into filter and causes engine difficult
The problem of starting.
To achieve the above object, the present invention provides a kind of diesel fuel filters for preventing engine start difficulty, comprising: filter
Core assembly comprising: filter tank shell and filter paper, the filter tank shell includes: cylinder and end cap, which is located at the end of cylinder
Mouth forms filter space；The filter paper is encapsulated in filter tank shell by the end cap of filter tank shell, by filter space be isolated into
Dirty side and clean side；And filter seat, it is threadedly coupled with the end cap of the filter tank shell, and be sealed by O-ring；
The filter seat has oil road and oil input channel, and the oil input channel is communicated with the dirty side of filter tank shell filter space, described fuel-displaced
Road is communicated with the clean side of filter tank shell filter space, and the oil road is provided with check valve, which runs in engine
When open, engine shut down when close.
In a preferred embodiment, mutually indepedent between oil road and oil input channel, it does not communicate directly.
In a preferred embodiment, oil road has main oil gallery, for the clean side with filter tank shell filter space
It communicates.
In a preferred embodiment, check valve is laid in the oil outlet of main oil gallery inside or main oil gallery.
In a preferred embodiment, check valve is umbrella valve.
In a preferred embodiment, the downside of filter seat have element kit screw socket, for filter tank shell
End cap is threadedly coupled.
Compared with prior art, the diesel fuel filter according to the present invention for preventing engine start difficulty has following beneficial
Effect: this prevents the diesel fuel filter of engine start difficulty by the way that check valve knot is arranged in the oil road on filter seat
Structure, after can effectively avoid engine because shutting down, the fuel oil between oil transfer pump and filter is inhaled into filter and causes
The problem of engine difficulty starts；The mode for increasing check valve in filter oil road is simple to operate, and check valve is easy to obtain
It takes, is easily achieved in the actual production process, batch easy to accomplish promotes and applies.It is provided with the filter of check valve and original
Plain filter contour structures remain exactly the same, can be in the case where not changing the existing any arrangement of engine to engine hardly possible
Startup separator is rectified and improved, and is rectified and improved at low cost；For after shutting down caused by the gather qi together of oil transfer pump front end the starting of engine difficulty therefore
Barrier, the starting event of engine difficulty can effectively be solved by only needing to change the diesel fuel filter with check valve provided by a this patent
Barrier, operation is very simple and convenient, can greatly promote engine failure rectification efficiency.
Detailed description of the invention
Fig. 1 is that the sectional structure for preventing the diesel fuel filter of engine start difficulty according to an embodiment of the present invention shows
It is intended to.
Fig. 2 is the partial enlargement knot of the diesel fuel filter for preventing engine start difficulty according to an embodiment of the present invention
Structure schematic diagram.
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 depicted in figs. 1 and 2, the diesel fuel filter according to the preferred embodiment of the present invention for preventing engine start difficulty
In the case where ensuring that diesel fuel filter filter efficiency and production cost are all held essentially constant, effectively exclude to be gathered in filter
The agglomerate air of dirty side.It includes: filter seat 1 and filter core that this, which prevents the specific structure of the diesel fuel filter of engine start difficulty,
Component 2, is connected through a screw thread between filter block and filter core, and the form of O-ring sealing is combined together；There is oil road on filter seat
And oil input channel does not communicate directly mutually into and out of mutually indepedent between oil duct；Element kit is mainly by filter tank shell 3 and 4 groups of filter paper
At filter paper is encapsulated in filter tank shell, and filter tank has been isolated into the dirty side communicated with oil input channel and has been communicated with oil road clean
Side.One-way valve structures are set in the oil road on filter seat 1, can effectively avoid engine because shut down after, oil transfer pump with
The problem of fuel oil between filter is inhaled into filter and engine difficulty is caused to start；Increase in filter oil road
The mode of check valve is simple to operate, and check valve is easily obtained, and is easily achieved in the actual production process, batch easy to accomplish
It promotes and applies.The filter and original plain filter contour structures for being provided with check valve remain exactly the same, and can not change
Engine difficulty startup separator is rectified and improved in the case where becoming the existing any arrangement of engine, is rectified and improved at low cost.
Specifically, element kit 2 is remained unchanged with existing element kit structure, comprising: filter tank shell 3 and filter paper 4,
In, filter tank shell 3 includes cylinder and end cap 5, and the port that end cap lid is located at cylinder forms filter space.Filter tank shell 3 and filtering
Device seat 1 is threadedly coupled.
Filter paper 4 is encapsulated in filter tank shell by the end cap of filter tank shell 3, and filter space is isolated into and dirty side and clean
Side.Component part of the filter paper 4 as diesel fuel filter filtering function most critical, the spy with oleophilic drainage and isolation particulate matter
Property, i.e. fuel oil is very easy to through the filter paper in element kit, and particulate matter and water have then largely been isolated in the dirty of filter core
Side.Fuel oil enters element kit 2 by oil input channel and is filtered, and enters clean side by the dirty side of element kit 2, using out
Oil duct discharge.
The downside of filter seat 1 has element kit screw socket, for being threadedly coupled with the end cap of filter tank shell 3, and passes through O
Type circle is sealed.Filter seat 1 has oil road and oil input channel, into and out of mutually indepedent between oil duct, does not communicate directly mutually,
Wherein.The oil input channel of filter seat 1 is communicated with the dirty side of 3 filter space of filter tank shell, and the oil road of filter seat 1 has main oil
Road 7, for being communicated with the clean side of 3 filter space of filter tank shell.
Filter seat 1 increases a check valve 8 in the main oil gallery 7 of oil road and (starts on the basis of existing filter seat
Check valve is opened when machine is run, closed check valve when engine is shut down).When the engine is running, suction of the check valve 8 in oil transfer pump
Power effect is lower to open, and the fuel oil in filter enters in oil transfer pump by check valve, and oil transfer pump delivers fuel into Fuel System
The positive pressure side of system, engine normally start operation.When engine is shut down, oil transfer pump shuts down, and check valve loses oil transfer pump
The suction of offer, while under the suction function of the clean side of filter, closed check valve, between oil transfer pump and filter in pipeline
Fuel oil will be stored in pipeline.When engine is again started up, oil transfer pump can be drawn at the first time fuel oil, simultaneously will
It is transported to injection pump, establishes starting rail pressure, fuel oil jet ignition, engine quick start.
Preferably, check valve is umbrella valve, is also possible to the check valve of other forms, and one-way valve structures form is unlimited.
Preferably, check valve is laid in main oil gallery inside or the oil outlet of main oil gallery of oil road, to prevent engine difficult
The function of starting；
To sum up, this prevents the diesel fuel filter of engine start difficulty single by being arranged in the oil road on filter seat
To valve arrangement, after can effectively avoid engine because shutting down, the fuel oil between oil transfer pump and filter is inhaled into filter
And the problem of causing engine difficulty to start.
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 (6)
1. a kind of diesel fuel filter for preventing engine start difficulty characterized by comprising
Element kit comprising: filter tank shell and filter paper, the filter tank shell includes: cylinder and end cap, which is located at cylinder
The port of body forms filter space；The filter paper is encapsulated in filter tank shell by the end cap of filter tank shell, by filter space every
From at dirty side and clean side；And
Filter seat is threadedly coupled with the end cap of the filter tank shell, and is sealed by O-ring；The filter seat tool
There are oil road and oil input channel, the oil input channel is communicated with the dirty side of filter tank shell filter space, the oil road and filter tank shell
The clean side of filter space communicates, and the oil road is provided with check valve, which opens when engine is run, engine
It is closed when shutdown.
2. preventing the diesel fuel filter of engine start difficulty as described in claim 1, which is characterized in that the oil road with
It is mutually indepedent between oil input channel, it does not communicate directly.
3. preventing the diesel fuel filter of engine start difficulty as described in claim 1, which is characterized in that the fuel-displaced stage property
There is main oil gallery, for communicating with the clean side of filter tank shell filter space.
4. preventing the diesel fuel filter of engine start difficulty as claimed in claim 3, which is characterized in that the check valve cloth
It is located at the oil outlet of main oil gallery inside or main oil gallery.
5. preventing the diesel fuel filter of engine start difficulty as described in claim 1, which is characterized in that the check valve is
Umbrella valve.
6. preventing the diesel fuel filter of engine start difficulty as described in claim 1, which is characterized in that the filter seat
Downside have element kit screw socket, for being threadedly coupled with the end cap of filter tank shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811174715.3A CN109083784A (en) | 2018-10-09 | 2018-10-09 | Prevent the diesel fuel filter of engine start difficulty |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811174715.3A CN109083784A (en) | 2018-10-09 | 2018-10-09 | Prevent the diesel fuel filter of engine start difficulty |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109083784A true CN109083784A (en) | 2018-12-25 |
Family
ID=64843367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811174715.3A Pending CN109083784A (en) | 2018-10-09 | 2018-10-09 | Prevent the diesel fuel filter of engine start difficulty |
Country Status (1)
| Country | Link |
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| CN (1) | CN109083784A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763922A (en) * | 2019-03-07 | 2019-05-17 | 广西玉柴机器股份有限公司 | Conducive to the diesel oil oil water separator of starting |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1495355A (en) * | 2002-07-31 | 2004-05-12 | 京三电机株式会社 | Fuel supply system |
| CN201339524Y (en) * | 2008-12-12 | 2009-11-04 | 派克汉尼汾液压系统(上海)有限公司 | Fuel filter seat and fuel filter |
| KR20140067672A (en) * | 2012-11-27 | 2014-06-05 | 현대자동차주식회사 | Fuel filter for vehicle |
| CN204921223U (en) * | 2015-09-01 | 2015-12-30 | 安徽江淮汽车股份有限公司 | Diesel oil filter disk seat assembly |
| CN206647193U (en) * | 2017-01-22 | 2017-11-17 | 克拉克过滤器（中国）有限公司 | Filter seat |
| CN107905929A (en) * | 2017-12-31 | 2018-04-13 | 无锡威孚高科技集团股份有限公司 | A kind of fuel filter of filtration package |
-
2018
- 2018-10-09 CN CN201811174715.3A patent/CN109083784A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1495355A (en) * | 2002-07-31 | 2004-05-12 | 京三电机株式会社 | Fuel supply system |
| CN201339524Y (en) * | 2008-12-12 | 2009-11-04 | 派克汉尼汾液压系统(上海)有限公司 | Fuel filter seat and fuel filter |
| KR20140067672A (en) * | 2012-11-27 | 2014-06-05 | 현대자동차주식회사 | Fuel filter for vehicle |
| CN204921223U (en) * | 2015-09-01 | 2015-12-30 | 安徽江淮汽车股份有限公司 | Diesel oil filter disk seat assembly |
| CN206647193U (en) * | 2017-01-22 | 2017-11-17 | 克拉克过滤器（中国）有限公司 | Filter seat |
| CN107905929A (en) * | 2017-12-31 | 2018-04-13 | 无锡威孚高科技集团股份有限公司 | A kind of fuel filter of filtration package |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763922A (en) * | 2019-03-07 | 2019-05-17 | 广西玉柴机器股份有限公司 | Conducive to the diesel oil oil water separator of starting |
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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 |
Application publication date: 20181225 |
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| RJ01 | Rejection of invention patent application after publication |