CN106677943A - High-position oil return pipeline - Google Patents
High-position oil return pipeline Download PDFInfo
- Publication number
- CN106677943A CN106677943A CN201611090686.3A CN201611090686A CN106677943A CN 106677943 A CN106677943 A CN 106677943A CN 201611090686 A CN201611090686 A CN 201611090686A CN 106677943 A CN106677943 A CN 106677943A
- Authority
- CN
- China
- Prior art keywords
- oil
- return line
- oil return
- joint
- return
- 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
Links
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
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M33/00—Other apparatus for treating combustion-air, fuel or fuel-air mixture
- F02M33/02—Other apparatus for treating combustion-air, fuel or fuel-air mixture for collecting and returning condensed fuel
- F02M33/08—Other apparatus for treating combustion-air, fuel or fuel-air mixture for collecting and returning condensed fuel returning to the fuel tank
-
- 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
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0017—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor related to fuel pipes or their connections, e.g. joints or sealings
-
- 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
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
Abstract
The invention discloses a high-position oil return pipeline. The high-position oil return pipeline comprises a first oil return pipeline connected with an oil injector and a second oil return pipeline connected with an oil pump, wherein the first oil return pipeline comprises a plurality of first oil return pipe sections which are connected end to end and in one-to-one correspondence with the positions of a plurality of oil injector oil return ports respectively, a first joint capable of being connected with the corresponding oil injector oil return port is arranged on the end part of each first oil return pipe section, the second oil return pipeline comprises a second oil return pipe section corresponding to the position of an oil pump oil discharge hole, and a second joint capable of being connected with the oil pump oil discharge hole is arranged on the end part of the second oil return pipe section; and the first oil return pipeline and the second oil return pipeline are intersected at a position higher than the second joint and connected to a rubber pipe joint of a whole vehicle, which is connected with an oil return pipe of the whole vehicle. The high-position oil return pipeline disclosed by the invention is reasonable in structure, high in assemblability, high in arrangement flexibility, and capable of effectively preventing the problem that an engine is difficult to start due to the entrance of air to the oil pump and a high-pressure pipeline.
Description
Technical field
The present invention relates to engine art, more specifically, it relates to a kind of high-order return line.
Background technology
According to the handling characteristicss and operating characteristic of in-cylinder direct-jet structure engine, need to draw an oil pipe from electromotor
It is connected with car load oil return pipe, so that fuel oil unnecessary in fuel injector, oil pump is led back into car load fuel tank.This kind of oil pipe is referred to as oil spout
Oil return duct member.In addition, an oil drain valve (return flow oil joint) would generally be set on oil pump, by oil spout oil return pipe road binders
Unnecessary fuel oil is unloaded and returned in car load fuel tank in pump；To ensure that injection pump of engine operationally stablize by pump housing fuel pressure.
At the same time, in order to ensure engine off condition under fuel pipe do not enter air and start function quickly to start, need send out
A check valve, fuel dispenser are arranged at the oil drain valve of motivation oil pump or while arranges to solve the above problems.
Although installing check valve additional on oil pump prevents oil pump emptying or arranges that fuel dispenser guides into oil circuit on whole machine
High-order oil return, can solve electromotor hardly possible starting problem.But, the presence of oil pump check valve uses integrity problem, if unidirectionally
Valve poor sealing can cause oil pump emptying problem, cause fuel pipe to enter air.Arrange that fuel dispenser can increase on whole machine
Engine pipelines part and cost.
The content of the invention
The purpose of the present invention is there are the problems referred to above for existing technology, there is provided a kind of versatility is good, strong adaptability
High-order return line.
For achieving the above object, a kind of high-order return line of the invention, including the first oil return pipe being connected with fuel injector
Road and the second return line being connected with oil pump；First return line include it is multiple end to end and respectively with multiple sprays
The one-to-one first oil return pipeline section in position of oily device oil return opening, the end of each described the first oil return pipeline section is equipped with can be with
The first joint that oil return of oil injector mouth is connected, second return line includes corresponding with the position that oil pump unloads oilhole
Two oil return pipeline sections, the end of the second oil return pipeline section is provided with and can unload the second joint that oilhole is connected with oil pump；Described
First, the second return line is crossing higher than the position of second joint and is being commonly connected to the car load being connected with car load oil return pipe
Rubber hose coupling.
Further, described each first joint includes being adapted simultaneously with the oil returning pipe joint of corresponding oil return of oil injector mouth
The first flange installation portion connected by crossing oil draining bolt；Second joint includes unloading the oil returning pipe joint phase of oilhole with oil pump
It is adapted to and passed through the connected second flange installation portion of oil draining bolt.
Further, the intersection of first, second described return line is provided with a three way cock, first oil return pipe
Connecting tube is provided between road and described car load rubber hose coupling.
As further improvement, also include the position that described three way cock is positioned above into second joint simultaneously
The first support being connected with external structure.
Further, described first support lower end is set on described car load rubber hose coupling, and its upper end is provided with hanger,
Connecting hole is provided with the hanger.
Further, described first support end is set on described three way cock, and its upper end is provided with hanger, described
Hanger is provided with connecting hole.
Beneficial effect
Compared with prior art, the present invention's is rational in infrastructure, and oil pipe can adjust oil return pipe according to the installation situation of car load
The arrangement on road, profile can be adjusted according to whole machine layout feature, and profile can be with various change, reasonable utilization space, assembling
Property is good, and flexible arrangement is good；Also ensure that fuel oil unnecessary in fuel injector, oil pump flows out, most of excess oil is recovered to car load oil
In case, to ensure that injection pump of engine operationally stablize by pump housing fuel pressure, make to be more prone to during electromotor startup next time；
Can also effectively prevent air from the difficult problem for starting of electromotor is caused into oil pump and pressure duct.
Description of the drawings
Fig. 1 is the structural perspective of the high-order return line of embodiment 1 in the present invention；
Fig. 2 is the installation diagram of the high-order return line of embodiment 1 in the present invention；
Fig. 3 is the front view of the high-order return line of embodiment 2 in the present invention；
Fig. 4 is the left view of the high-order return line of embodiment 2 in the present invention；
Fig. 5 is the installation diagram of the high-order return line of embodiment 2 in the present invention.
In figure：1st, the first oil return pipeline section；2nd, the first joint；3rd, connecting tube；4th, three-way interface；5th, the second oil return pipeline section；6、
Second joint；7th, car load rubber hose coupling；8th, first support；9th, second support.
Specific embodiment
With reference to embodiment, the invention will be further described, but does not constitute any limitation of the invention, any
The modification of the limited number of time that people is made in scope of the invention as claimed, still in scope of the presently claimed invention.
Embodiment 1
Shown in reference picture 1- Fig. 2, a kind of high-order return line of the present invention, including the first oil return pipe being connected with fuel injector
Road and the second return line being connected with oil pump；First return line include it is multiple end to end and respectively with multiple fuel injectors
The one-to-one first oil return pipeline section 1 in position of oil return opening, the end of each the first oil return pipeline section 1 is equipped with and can return with fuel injector
The first joint 2 that hydraulic fluid port is connected, corresponding the second oil return pipeline section in the position that the second return line includes with oil pump unloads oilhole
5, the end of the second oil return pipeline section 5 is provided with and can unload the second joint 6 that oilhole is connected with oil pump；First, second return line exists
The car load rubber hose coupling 7 for crossing higher than the position of the second joint 6 and being commonly connected to be connected with car load oil return pipe.First oil return pipe
Section 1 is directly connected by the first joint 2 with the jet of fuel injector, by first of the return lines of fuel oil Jing first in fuel injector
Oil return pipeline section 1 flows to car load rubber hose coupling 7, so as to be recovered to fuel tank；First oil return pipeline section 1 is flexible pipe, light weight, low cost,
Profile can be adjusted according to whole machine layout feature, and profile can be good with various change, reasonable utilization space, assembling, arrangement
Motility is good；Second oil return pipeline section 5 is unloaded oilhole and is connected by the second joint 6 of the second return line with oil pump, by oil pump Jing second
Return line and the first return line flow to car load rubber hose coupling 7 after confluxing, and so as to be recovered to fuel tank, it is unnecessary in oil pump to can ensure that
Fuel oil flow out oil pump, most of fuel oil is recovered in car load fuel tank, to ensure injection pump of engine operationally pump housing internal combustion
Oil pressure is stablized, and the second return line is directly connected with the oilhole that unloads of oil pump, easy to connect, reliable；And, the first return line
Crossing higher than the position of the second joint 6 with the second return line so that in the second oil return pipeline section 5 moment with the presence of fuel oil,
Prevent air from the difficult problem for starting of electromotor is caused into oil pump and pressure duct, make more to hold during electromotor startup next time
Easily, improve the performance of electromotor.
And, each first joint 2 includes being adapted and passing through with the oil returning pipe joint of corresponding oil return of oil injector mouth
The connected first flange installation portion of oil draining bolt, is directly tightly connected by crossing oil draining bolt with injection pump, and easy for installation, space accounts for
With little；Second joint 6 includes that the oil returning pipe joint for unloading oilhole with oil pump is adapted and passed through the second connected method of oil draining bolt
Blue installation portion, is directly closely connected by crossing oil draining bolt with oil pump, and structure design is simple, is installed and is safeguarded easy, and purchase cost is low,
Effectively prevent fuel leakage.
In the present embodiment, the intersection in first, second return line is provided with a three way cock 4, by three way cock 4
First, second return line is converged；Connecting tube 3 is provided between first return line and car load rubber hose coupling 7, connecting tube 3 is
Flexible pipe, the profile of connecting tube 3 can be adjusted according to whole machine layout feature, strong adaptability.Also include positioning three way cock 4
The first support 8 being connected in the position higher than the second joint 6 and with external structure, by the fixed supporting role of first support 8,
Ensure the intersection of first, second return line it is external be higher than the second joint 6 position so that the moment in the second oil return pipeline section 5
With the presence of fuel oil, prevent air from entering oil pump and pressure duct.According to practical situation, it is easier to rock pipeline section in return line
Second support 9 is set, will easily be rocked pipeline section and fixed with external structure, use return line more stable, reliable, it is ensured that car load
That what is installed is neat.
In the present embodiment, arranged according to the pipeline of car load, the position height one of car load rubber hose coupling 7 and three way cock 4
Cause, and car load rubber hose coupling 7 is close proximity to three way cock 4 and arranges, therefore the lower end of first support 8 can be set in car load rubber hose coupling
On 7, its upper end is provided with hanger, and connecting hole is provided with hanger, first support 8 is fixed in external structure by bolt, no
Car load rubber hose coupling 7 can be only fixed, while can also position the intersection three way cock 4 of first, second return line, it is ensured that
Position of the position of three way cock 4 higher than the second joint 6.
Embodiment 2
It is another kind of specific embodiment of the present invention shown in reference picture 3- Fig. 5, its is substantially the same manner as Example 1, it is different
Part is, according to the actual arrangement situation of the car load return line of another kind of vehicle, after first, second pipeline crosses, to pass through
Connecting tube 3 is extended downwardly, and car load rubber hose coupling 7 is arranged below the position of three way cock 4, therefore the lower end of first support 8 covers
It is located on three way cock 4, its upper end is provided with hanger, connecting hole is provided with hanger, first support 8 is fixed outside by bolt
In portion's structure, the first return line is positioned with the three way cock 4 of the second return line intersection, it is ensured that the position of three way cock 4
Put the position higher than the second joint 6.
The above is only the preferred embodiment of the present invention, it should be pointed out that for a person skilled in the art, do not taking off
On the premise of present configuration, some deformations and improvement can also be made, these are all without the effect for affecting the present invention to implement
And practical applicability.
Claims (6)
1. a kind of high-order return line, it is characterised in that include the first return line being connected with fuel injector and be connected with oil pump
The second return line；First return line include it is multiple end to end and respectively with the position of multiple oil return of oil injector mouths
One-to-one first oil return pipeline section (1) is put, the end of each described the first oil return pipeline section (1) is equipped with and can return with fuel injector
The first joint (2) that hydraulic fluid port is connected, second return line includes second corresponding with the position that oil pump unloads oilhole time
Oil pipe section (5), the end of the second oil return pipeline section (5) is provided with and can unload the second joint (6) that oilhole is connected with oil pump；It is described
First, second return line higher than second joint (6) position crossing and be commonly connected to and car load oil return pipe connect
The car load rubber hose coupling (7) for connecing.
2. a kind of high-order return line according to claim 1, it is characterised in that described each first joint (2) includes
The connected first flange installation portion of oil draining bolt is adapted and passed through with the oil returning pipe joint of corresponding oil return of oil injector mouth；Institute
Stating the second joint (6) includes that the oil returning pipe joint for unloading oilhole with oil pump is adapted and passed through the connected second flange of oil draining bolt
Installation portion.
3. a kind of high-order return line according to claim 1, it is characterised in that first, second described return line
Intersection be provided with a three way cock (4), be provided between first return line and described car load rubber hose coupling (7) and be connected
Pipe (3).
4. a kind of high-order return line according to claim 3, it is characterised in that also include described three way cock
(4) first support (8) for being positioned above the position of second joint (6) and being connected with external structure.
5. a kind of high-order return line according to claim 4, it is characterised in that the lower end set of the first support (8)
It is located on described car load rubber hose coupling (7), its upper end is provided with hanger, and on the hanger connecting hole is provided with.
6. a kind of high-order return line according to claim 4, it is characterised in that the lower end set of the first support (8)
It is located on one end of the three way cock (4), its upper end is provided with hanger, on the hanger connecting hole is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611090686.3A CN106677943A (en) | 2016-11-30 | 2016-11-30 | High-position oil return pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611090686.3A CN106677943A (en) | 2016-11-30 | 2016-11-30 | High-position oil return pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106677943A true CN106677943A (en) | 2017-05-17 |
Family
ID=58866279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611090686.3A Pending CN106677943A (en) | 2016-11-30 | 2016-11-30 | High-position oil return pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106677943A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397529A (en) * | 2019-08-14 | 2019-11-01 | 广西玉柴机器股份有限公司 | The fuel dispenser modular construction of engine embedded one-way valve structures |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2903445Y (en) * | 2006-01-24 | 2007-05-23 | 潍柴动力股份有限公司 | Diesel engine oil return pipe apparatus |
| WO2008146420A1 (en) * | 2007-06-01 | 2008-12-04 | Bosch Corporation | Liquefied gas fuel supply device for internal combustion engine, method for recovering liquefied gas fuel, and method for forcibly stopping internal combustion engine |
| CN203098103U (en) * | 2013-01-14 | 2013-07-31 | 安徽江淮汽车股份有限公司 | Oil supply system of diesel engine |
| CN203403996U (en) * | 2013-08-16 | 2014-01-22 | 安徽江淮汽车股份有限公司 | Fuel oil return hose assembly |
| CN203742867U (en) * | 2014-02-10 | 2014-07-30 | 潍柴动力股份有限公司 | Oil sprayer oil return pipe assembly |
| CN204099082U (en) * | 2014-08-21 | 2015-01-14 | 内蒙古欧意德发动机有限公司 | Oil return pipe component |
| CN104863768A (en) * | 2015-04-09 | 2015-08-26 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Device and method for fuel oil temperature control |
| CN205478040U (en) * | 2016-03-31 | 2016-08-17 | 安徽江淮汽车股份有限公司 | Diesel engine fuel injection system |
| CN206268000U (en) * | 2016-11-30 | 2017-06-20 | 广西玉柴机器股份有限公司 | A kind of high-order return line |
-
2016
- 2016-11-30 CN CN201611090686.3A patent/CN106677943A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2903445Y (en) * | 2006-01-24 | 2007-05-23 | 潍柴动力股份有限公司 | Diesel engine oil return pipe apparatus |
| WO2008146420A1 (en) * | 2007-06-01 | 2008-12-04 | Bosch Corporation | Liquefied gas fuel supply device for internal combustion engine, method for recovering liquefied gas fuel, and method for forcibly stopping internal combustion engine |
| CN203098103U (en) * | 2013-01-14 | 2013-07-31 | 安徽江淮汽车股份有限公司 | Oil supply system of diesel engine |
| CN203403996U (en) * | 2013-08-16 | 2014-01-22 | 安徽江淮汽车股份有限公司 | Fuel oil return hose assembly |
| CN203742867U (en) * | 2014-02-10 | 2014-07-30 | 潍柴动力股份有限公司 | Oil sprayer oil return pipe assembly |
| CN204099082U (en) * | 2014-08-21 | 2015-01-14 | 内蒙古欧意德发动机有限公司 | Oil return pipe component |
| CN104863768A (en) * | 2015-04-09 | 2015-08-26 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Device and method for fuel oil temperature control |
| CN205478040U (en) * | 2016-03-31 | 2016-08-17 | 安徽江淮汽车股份有限公司 | Diesel engine fuel injection system |
| CN206268000U (en) * | 2016-11-30 | 2017-06-20 | 广西玉柴机器股份有限公司 | A kind of high-order return line |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397529A (en) * | 2019-08-14 | 2019-11-01 | 广西玉柴机器股份有限公司 | The fuel dispenser modular construction of engine embedded one-way valve structures |
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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: 20170517 |
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| RJ01 | Rejection of invention patent application after publication |