CN108397324A - A kind of gasoline high pressure oil rail and its processing technology - Google Patents
A kind of gasoline high pressure oil rail and its processing technology Download PDFInfo
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- CN108397324A CN108397324A CN201810391715.2A CN201810391715A CN108397324A CN 108397324 A CN108397324 A CN 108397324A CN 201810391715 A CN201810391715 A CN 201810391715A CN 108397324 A CN108397324 A CN 108397324A
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- Prior art keywords
- oil
- rail
- high pressure
- gasoline
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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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The present invention relates to a kind of gasoline high pressure oil rail and its processing technologys, the high pressure oil rail includes the multiple oil injector seats and carrier base that hollow oily rail ontology, integrated molding are arranged on oily rail ontology, one end of the oil rail ontology opens up oil inlet, the other end opens up the pressure measuring cavity for installing oil pressure sensor, and the oil injector seat is connected to the inside of oily rail ontology.Compared with prior art, all parts of the present invention are all integrally formed, as long as therefore raw material intensity it is enough, obtained gasoline high pressure oil rail can bear larger pressure, therefore safer；And it is high in machining efficiency, output is relatively high；In addition, the high precision machining of the present invention, each size discrete are smaller.
Description
Technical field
The present invention relates to technical field of automobile engine, and in particular to a kind of gasoline high pressure oil rail and its processing technology.
Background technology
Engine oil rail manufacturing technology is controlled by overseas enterprise always as the core technology of automobile making, and China is autonomous
The product of the automobile generally use import foreign countries of brand.It needs to pay high usage charges, has virtually then added the cost of production.
Currently, high-pressure oil rail of gasoline engine is formed using parts assembly welding, with requirement of the country to motor vehicle emission by
It gradually improves, major automobile vendor meets emission request by reducing discharge capacity and improving engine operating pressure.With engine
The raising of operating pressure, reliability, endurance can be big under operating pressure 250bar case above for the oily rail of assembly welding form
It is big to reduce, threat can be brought to user.So oily rail majority of the operating pressure in 250bar or more is added using solid forging machine
Form.Meanwhile high-pressure oil rail of gasoline engine is processed using assembled technique, the machining period that single products are excessive is caused,
Excessive equipment investment, while can not ensure precision when processing internal and external threads.
Invention content
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of integrated gasoline
High pressure oil rail and its processing technology.
The purpose of the present invention can be achieved through the following technical solutions：A kind of gasoline high pressure oil rail, the high pressure oil rail packet
Include hollow oily rail ontology, the multiple oil injector seats and carrier base that integrated molding is arranged on oily rail ontology, the oil rail ontology
One end open up oil inlet, the other end opens up the pressure measuring cavity for installing oil pressure sensor, the oil injector seat and oily rail ontology
Inside connection.All parts of the present invention are all integrally formed, as long as therefore raw material intensity it is enough, obtained gasoline is high
Pressure oil rail can bear larger pressure, therefore safer.
The quantity of the oil injector seat is 4, and the quantity of the carrier base is two, one of them described carrier base is set
Set between first oil injector seat and second oil injector seat, another described carrier base setting third oil injector seat with
Between 4th oil injector seat.
The oil inlet include set gradually first cone section, first horizontal segment, second cone section, the second horizontal segment and
Third bores section, and the diameter that the first cone section and second bore section is gradually reduced along gasoline flow direction, the third cone section
Diameter gradually increases along gasoline flow direction, and is finally connect with the central passage of oily rail ontology.The setting so that gasoline is first
It is compressed, then unexpected pressure release so that fuel evaporation is in mist in oily rail body interior, is more evenly distributed.
Open up oil discharge passage in the middle part of the oil injector seat, the oil discharge passage includes upper channel and lower channel, it is described on
Channel is connected to the inside of oily rail ontology, and the diameter of the lower channel is more than the diameter of upper channel.
The oily rail ontology both ends are equipped with chamfering.
The material that the high pressure oil rail uses is stainless steel.
A kind of processing technology of gasoline high pressure oil rail as described above, includes the following steps：
(1) one end center of solid original paper is opened up by the first cone section of oil inlet, first horizontal segment, the by machining center
The diameter of plug tap section and the second horizontal segment, the first cone section and the second cone section is gradually reduced along gasoline flow direction,
The other end center of solid original paper opens up supported hole, in order to realize the positioning of original paper when following process；
(2) chamfering is opened up at the both ends of solid original paper by lathe；
(3) holder screw hole and chassis plane are opened up in the carrier base for the solid original paper for having opened up chamfering；
(4) it is created by depth drill and solid original paper is opened up into deep hole along axis, form hollow oily rail ontology, and open in oil inlet
If diameter is along gasoline flow direction, gradually increased third bores section, and is connected to the second horizontal segment；
(5) oil discharge passage is opened up in the oil injector seat of solid original paper by machining center, and with the inside of oily rail ontology
Connection；
(6) pressure measuring cavity is opened up to get the gasoline high pressure oil rail by machining center in the other end of oily rail ontology.
The present invention only can be obtained gasoline high pressure oil rail by the common process equipment such as machining center, lathe, drilling machine, avoid
The precision problem caused by multi-work piece assembly, cost are relatively low.
Compared with prior art, beneficial effects of the present invention are embodied in following several respects：
(1) all parts are all integrally formed, as long as therefore raw material intensity it is enough, obtained gasoline high pressure oil rail
Larger pressure can be born, therefore safer；
(2) high in machining efficiency, output is relatively high；
(3) high precision machining, each size discrete are smaller.
Description of the drawings
Fig. 1 is the cross-sectional view of gasoline high pressure oil rail of the present invention；
Fig. 2 is the enlarged structure schematic diagram in the portions A in Fig. 1；
Fig. 3 is the enlarged structure schematic diagram in the portions B in Fig. 1；
Fig. 4 is the change schematic diagram of solid original paper in each step in processing technology of the present invention.
Wherein, 1 is oily rail ontology, and 2 be oil inlet, and 21 be the first cone section, and 22 be first horizontal segment, and 23 be the second cone section,
24 be the second horizontal segment, and 25 bore section for third, and 3 be oil injector seat, and 31 be upper channel, and 32 be lower channel, and 4 be carrier base, and 5 be survey
Chamber is pressed, 6 be chamfering.
Specific implementation mode
It elaborates below to the embodiment of the present invention, the present embodiment is carried out lower based on the technical solution of the present invention
Implement, gives detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation
Example.
Embodiment 1
A kind of gasoline high pressure oil rail, structure is as shown in Figures 1 to 3, which includes hollow oily rail ontology 1, one
Multiple oil injector seats 3 and carrier base 4 on oily rail ontology 1 are arranged in chemical conversion type, and one end of oily rail ontology 1 opens up oil inlet 2, separately
One end opens up the pressure measuring cavity 5 for installing oil pressure sensor, and oil injector seat 3 is connected to the inside of oily rail ontology 1.The present invention is all
Part be all integrally formed, as long as therefore raw material intensity it is enough, obtained gasoline high pressure oil rail can bear larger
Pressure, thus it is safer.
The quantity of oil injector seat 3 is 4, and the quantity of carrier base 4 is two, and one of carrier base 4 is arranged at first
Between oil injector seat 3 and second oil injector seat 3, another carrier base 4 is arranged in third oil injector seat 3 and the 4th oil spout
Between device seat 3.
Oil inlet 2 includes that the first cone section 21, the first horizontal segment 22, second set gradually bores section 23, the second horizontal segment 24
And third bores section 25, the diameter that the first cone section 21 and second bores section 23 is gradually reduced along gasoline flow direction, and third bores section
25 diameter gradually increases along gasoline flow direction, and is finally connect with the central passage of oily rail ontology 1, as shown in Fig. 2, should
Setting makes gasoline first be compressed, then unexpected pressure release so that fuel evaporation is in mist inside oily rail ontology 1, and distribution is more
Uniformly.
The middle part of oil injector seat 3 opens up oil discharge passage, and oil discharge passage includes upper channel 31 and lower channel 32, upper channel 31 and oil
The inside of rail ontology 1 is connected to, and the diameter of lower channel 32 is more than the diameter of upper channel 31, as shown in Figure 3.
Oily 1 both ends of rail ontology are equipped with chamfering 6.
The material that high pressure oil rail uses is stainless steel.
A kind of processing technology of gasoline high pressure oil rail as above, flow is as shown in figure 4, include the following steps：
(1) one end center of solid original paper is opened up by the first cone section of oil inlet, first horizontal segment, the by machining center
The diameter of plug tap section and the second horizontal segment, the first cone section and the second cone section is gradually reduced along gasoline flow direction, solid original
The other end center of part opens up supported hole；
(2) chamfering is opened up at the both ends of solid original paper by lathe；
(3) holder screw hole and supporting surface are opened up in the carrier base for the solid original paper for having opened up chamfering；
(4) solid original paper is opened up along axis by deep hole by deep hole drilling machine, forms hollow oily rail ontology, and open in oil inlet
If diameter is along gasoline flow direction, gradually increased third bores section, and is connected to the second horizontal segment；
(5) oil discharge passage is opened up in the oil injector seat of solid original paper by machining center, and with the inside of oily rail ontology
Connection；
(6) pressure measuring cavity is opened up to get gasoline high pressure oil rail by machining center in the other end of oily rail ontology.
Claims (7)
1. a kind of gasoline high pressure oil rail, which is characterized in that the high pressure oil rail includes that hollow oily rail ontology, integrated molding setting exist
One end of multiple oil injector seats on oily rail ontology and carrier base, the oil rail ontology opens up oil inlet, and the other end, which opens up, to be used for
The pressure measuring cavity of oil pressure sensor is installed, the oil injector seat is connected to the inside of oily rail ontology.
2. a kind of gasoline high pressure oil rail according to claim 1, which is characterized in that the quantity of the oil injector seat is 4
A, the quantity of the carrier base is two, one of them described carrier base is arranged in first oil injector seat and second oil spout
Between device seat, another described carrier base is arranged between third oil injector seat and the 4th oil injector seat.
3. a kind of gasoline high pressure oil rail according to claim 1, which is characterized in that the oil inlet includes setting gradually
The first cone section, first horizontal segment, the second cone section, the second horizontal segment and third bore section, the first cone section and the second cone section
Diameter be gradually reduced along gasoline flow direction, the diameter of third cone section gradually increases along gasoline flow direction, and
Finally it is connect with the central passage of oily rail ontology.
4. a kind of gasoline high pressure oil rail according to claim 1, which is characterized in that opened up out in the middle part of the oil injector seat
Oily channel, the oil discharge passage include upper channel and lower channel, and the upper channel is connected to the inside of oily rail ontology, described lower logical
The diameter in road is more than the diameter of upper channel.
5. a kind of gasoline high pressure oil rail according to claim 1, which is characterized in that the oily rail ontology both ends are equipped with
Angle.
6. a kind of gasoline high pressure oil rail according to claim 1, which is characterized in that the material that the high pressure oil rail uses
For stainless steel.
7. a kind of processing technology of gasoline high pressure oil rail, which is characterized in that include the following steps：
(1) one end center of solid original paper is opened up to the first cone section, first horizontal segment, the second cone of oil inlet by machining center
The diameter of section and the second horizontal segment, the first cone section and the second cone section is gradually reduced along gasoline flow direction, solid
The other end center of original paper opens up supported hole；
(2) chamfering is opened up at the both ends of solid original paper by lathe；
(3) holder screw hole and chassis plane are opened up in the carrier base for the solid original paper for having opened up chamfering；
(4) it is created by depth drill and solid original paper is opened up into deep hole along axis, form hollow oily rail ontology, and open up directly in oil inlet
Along gasoline flow direction, gradually increased third bores section to diameter, and is connected to the second horizontal segment；
(5) oil discharge passage is opened up in the oil injector seat of solid original paper by machining center, and is connected to the inside of oily rail ontology；
(6) pressure measuring cavity is opened up to get the gasoline high pressure oil rail by machining center in the other end of oily rail ontology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810391715.2A CN108397324A (en) | 2018-04-27 | 2018-04-27 | A kind of gasoline high pressure oil rail and its processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810391715.2A CN108397324A (en) | 2018-04-27 | 2018-04-27 | A kind of gasoline high pressure oil rail and its processing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108397324A true CN108397324A (en) | 2018-08-14 |
Family
ID=63100654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810391715.2A Pending CN108397324A (en) | 2018-04-27 | 2018-04-27 | A kind of gasoline high pressure oil rail and its processing technology |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648347A (en) * | 2019-01-07 | 2019-04-19 | 上海威克迈龙川汽车发动机零件有限公司 | A kind of integrally formed system of high pressure oil rail and technique |
| CN109865992A (en) * | 2018-12-11 | 2019-06-11 | 上海威克迈龙川汽车发动机零件有限公司 | The processing technology of distribution pipe and engine high pressure oil rail assembly comprising the distribution pipe |
| CN109944725A (en) * | 2018-12-11 | 2019-06-28 | 上海威克迈龙川汽车发动机零件有限公司 | A kind of distribution pipe and its processing technology and engine high pressure oil rail assembly |
| WO2020119181A1 (en) * | 2018-12-11 | 2020-06-18 | 上海威克迈龙川汽车发动机零件有限公司 | Distribution pipe, processing technique thereof, and high-pressure fuel rail assembly for engine |
| CN114033591A (en) * | 2021-11-16 | 2022-02-11 | 苏州星波动力科技有限公司 | Aluminum alloy oil rail, forming method and manufacturing method thereof, engine and automobile |
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| CN101275525A (en) * | 2007-03-31 | 2008-10-01 | 奇瑞汽车股份有限公司 | Gasoline engine high pressure oil rail |
| CN201521380U (en) * | 2009-09-27 | 2010-07-07 | 奇瑞汽车股份有限公司 | High-pressure oil track of direct injection engine in petrol tank |
| CN104863769A (en) * | 2015-05-28 | 2015-08-26 | 上海臼井发动机零部件有限公司 | Gasoline direct injection high-pressure fuel distribution pipe manufacturing method |
| CN208310939U (en) * | 2018-04-27 | 2019-01-01 | 上海众源燃油分配器制造有限公司 | A kind of gasoline high pressure oil rail |
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| CN101275525A (en) * | 2007-03-31 | 2008-10-01 | 奇瑞汽车股份有限公司 | Gasoline engine high pressure oil rail |
| CN201521380U (en) * | 2009-09-27 | 2010-07-07 | 奇瑞汽车股份有限公司 | High-pressure oil track of direct injection engine in petrol tank |
| CN104863769A (en) * | 2015-05-28 | 2015-08-26 | 上海臼井发动机零部件有限公司 | Gasoline direct injection high-pressure fuel distribution pipe manufacturing method |
| CN208310939U (en) * | 2018-04-27 | 2019-01-01 | 上海众源燃油分配器制造有限公司 | A kind of gasoline high pressure oil rail |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109865992A (en) * | 2018-12-11 | 2019-06-11 | 上海威克迈龙川汽车发动机零件有限公司 | The processing technology of distribution pipe and engine high pressure oil rail assembly comprising the distribution pipe |
| CN109944725A (en) * | 2018-12-11 | 2019-06-28 | 上海威克迈龙川汽车发动机零件有限公司 | A kind of distribution pipe and its processing technology and engine high pressure oil rail assembly |
| CN109973269A (en) * | 2018-12-11 | 2019-07-05 | 上海威克迈龙川汽车发动机零件有限公司 | A kind of distribution pipe and its processing technology and engine high pressure oil rail assembly |
| WO2020119179A1 (en) * | 2018-12-11 | 2020-06-18 | 上海威克迈龙川汽车发动机零件有限公司 | Machining process for distribution tube and engine high-pressure oil rail assembly comprising distribution tube |
| WO2020119181A1 (en) * | 2018-12-11 | 2020-06-18 | 上海威克迈龙川汽车发动机零件有限公司 | Distribution pipe, processing technique thereof, and high-pressure fuel rail assembly for engine |
| WO2020119180A1 (en) * | 2018-12-11 | 2020-06-18 | 上海威克迈龙川汽车发动机零件有限公司 | Distribution pipe and machining process therefor, and engine high-pressure fuel rail assembly |
| CN109648347A (en) * | 2019-01-07 | 2019-04-19 | 上海威克迈龙川汽车发动机零件有限公司 | A kind of integrally formed system of high pressure oil rail and technique |
| CN114033591A (en) * | 2021-11-16 | 2022-02-11 | 苏州星波动力科技有限公司 | Aluminum alloy oil rail, forming method and manufacturing method thereof, engine and automobile |
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