CN106401819B - Double jet pump structures and injector head - Google Patents
Double jet pump structures and injector head Download PDFInfo
- Publication number
- CN106401819B CN106401819B CN201610938909.0A CN201610938909A CN106401819B CN 106401819 B CN106401819 B CN 106401819B CN 201610938909 A CN201610938909 A CN 201610938909A CN 106401819 B CN106401819 B CN 106401819B
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- jet pump
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- pipeline
- injector head
- oil
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- 239000003921 oil Substances 0.000 claims abstract description 98
- 239000000446 fuel Substances 0.000 claims abstract description 59
- 239000012530 fluid Substances 0.000 claims abstract description 37
- 239000000295 fuel oil Substances 0.000 claims abstract description 17
- 239000007921 spray Substances 0.000 claims abstract description 17
- 239000002828 fuel tank Substances 0.000 claims description 29
- 238000002347 injection Methods 0.000 claims description 18
- 239000007924 injection Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 238000000429 assembly Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003447 ipsilateral effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 235000015927 pasta Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction 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
- 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
-
- 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)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a kind of double jet pump structures comprising fluid tube assembly, the first jet pump, the second jet pump；Fluid tube assembly includes the first pipeline, the second pipeline, fuel sucking pipe；First pipeline is switched to the first jet pump；Second pipeline is switched to the second jet pump；Second jet pump includes injector head, and injector head is followed successively by head, ontology, tail portion along axial direction；Head, ontology inner cavity be tubulose and connection；The spray-hole of a connection chamber body is radially offered on body outer wall；The head of injector head is embedded in the second pipeline, and head outer wall and the second pipeline are tightly connected, and fuel oil enters from head, sprays from the spray-hole on ontology, and oil inlet direction is vertical with fuel-displaced direction, and spray-hole sprays the negative pressuren zone that fuel oil is formed and is located in fuel sucking pipe.The invention also discloses a kind of injector heads.The present invention can make the compact-sized of double jet pump structures, can be arranged in limited oil storage barrel space.
Description
Technical field
The present invention relates to automobile fuel pump, in particular to a kind of double jet pump structures and injector head.
Background technique
Currently used for the oil pump bracket assembly of saddle-shape fuel tank, distal end oil suction structure, oil storage barrel are general all the way due to more
All larger, to there is enough space layout two-way oil suction structures, but when reservoir port is smaller, big oil storage barrel can not be packed into oil
Case, and vehicle factor uses the fuel tank of unified specification, reservoir port cannot increase, and can only use lesser oil storage barrel, therefore need
Two-way oil suction structure is set in lesser oil storage barrel space lining, to meet the needs of reservoir port lesser saddle-shape fuel tank.
In current gasoline fuel system, double jet pump oil pump bracket assemblies are usually double active drive structures, oil pump
An individual double jet pump assemblies are generally had inside bracket assembly is mounted on somewhere in oil storage barrel.This individually double injections
Not only structure is more complicated for pump assembly, increases a cost of parts, and can occupy biggish space in oil storage barrel, causes
Other part (such as fine filter) structure arrangements are limited to very much.
Fig. 1 show double jet pump oil pump brackets of existing double active drive structures, due to depositing for double jet pump assemblies
In the case where the inner space of oil storage barrel 1 is certain, fine filter 2 cannot be done too big, and filter area is by the very day of one's doom
System, and 2 structure of fine filter that can individually replace cannot be arranged as.In Fig. 1, the first jet pump 51 passes through the combustion that fine filter 2 exports
Oil driving distal end fuel enters oil storage barrel 1, the second jet pump by the distal end fuel sucking pipe 53 of double jet pump assemblies in oil storage barrel
52 fuel oils exported by fine filter 2 drive the fuel oils in fuel tanks to pass through check valve 4 to enter oil storage barrel 1, the first jet pump 51 and
The fuel oil that second jet pump 52 sprays is sprayed through fuel oil return pipe 54.
Summary of the invention
The technical problem to be solved by the present invention is to make the compact-sized of double jet pump structures, hence it is evident that reduce lateral dimension, energy
It is enough arranged in limited oil storage barrel space.
In order to solve the above technical problems, double jet pump structures provided by the invention comprising fluid tube assembly, the first injection
Pump, the second jet pump；
The fluid tube assembly includes the first pipeline, the second pipeline, fuel sucking pipe；
First pipeline is switched to the first jet pump；
Second pipeline is switched to the second jet pump；
Second jet pump includes injector head, and the injector head is followed successively by head, ontology, tail portion along axial direction；
The head, ontology inner cavity be tubulose and connection；
The spray-hole of a connection chamber body is radially offered on the body outer wall；
The head of the injector head is embedded in the second pipeline, head outer wall and the sealed connection of the second pipeline, fuel oil from head into
Enter, sprayed from the spray-hole on ontology, oil inlet direction is vertical with fuel-displaced direction, and spray-hole sprays the negative pressuren zone that fuel oil is formed and is located at
In the fuel sucking pipe.
Preferably, the ontology of the injector head is located in the fuel sucking pipe, the spray-hole on ontology is towards the fuel sucking pipe
Lower end, ontology two sides have the gap between the oil suction tube wall.
Preferably, double jet pump structures are placed in oil drum, oil drum is placed in main fuel tank；
Oil in main fuel tank is drawn into oil drum by the first jet pump；
Oil in auxiliary fuel tank is drawn onto oil drum by the second jet pump by the fuel sucking pipe.
Preferably, the fluid tube assembly further includes third pipeline, the 4th pipeline；
Third pipeline is used to send oil outside to fuel tank；
4th pipeline is used for oil pump to fluid tube assembly fuel feeding.
Preferably, the injector head further includes filter；
The internal diameter on the injector head head is greater than the internal diameter of its ontology；
The filter is column, and filter cylindrical axes have one or more groove upwards；
The filter is fixed in the injector head head.
Preferably, the inner cavity on the injector head head is cylinder；
The filter is cylindric.
Preferably, each trench cross section of the filter cylindrical axes upwards is respectively less than the spray-hole section of the injector head.
Preferably, the filter cylinder is fixed on together with injector head head inner wall interference fit.
Preferably, the first pipeline, third pipeline, the 4th pipeline and fuel sucking pipe axis be longitudinal；
The axis of second pipeline is laterally.
Preferably, the injector head head is cylindric；
Injector head head cylinder circumferentially has multiple convex ribs, for making the injector head head with the second pipeline mistake
Sealing of being full of is fixedly installed togather.
Preferably, the tail portion of the injector head is cylindric；
The outer diameter of the injection head-tail is greater than the outer diameter of the injector head head and ontology；
Fuel sucking pipe and the second pipeline vertical connection, oil suction tube wall side has mounting hole, when outside the injector head head
When wall is tightly connected with the second pipeline, the injection head-tail is tightly connected by the mounting hole and oil suction tube wall.
Preferably, injector head tail portion cylinder is installed together with the mounting hole interference fit seal.
Preferably, injector head tail portion cylinder is equipped with asymmetric fluting.
Preferably, the fuel sucking pipe lower end is placed in an anti-siphon groove；
The anti-siphon groove is placed in oil drum；
The minimum point of the anti-siphon groove top edge is higher than the scale liquid position of oil drum.
Preferably, anti-siphon groove inner wall bottom surface is semicircle or arc.
Preferably, fluid tube assembly is packed into anti-rainbow after the injector head is installed in fluid tube assembly by mounting hole
In bothrium, the injection tail end is resisted against anti-siphon groove inner wall.
Preferably, injector head body outer wall cross section is rectangle, ellipse or spindle.
Preferably, double jet pump structures further include bracket, metallic support, guide rod, hose；
The fluid tube assembly, anti-siphon groove are each attached on the bracket；
The bracket lower part is provided with a lateral circular hole, and middle part is equipped with a longitudinal guide rod hole, and top is provided with transverse direction
U-shaped clip；
The metallic support includes sequentially connected cross tube, vertical bar, sheer pole；Vertical bar is perpendicular to cross tube and lower cross
Bar；
In the lateral circular hole of the end insertion bracket lower part of the metallic support sheer pole, then it is with the transverse direction circular hole
Mandrel rotation, the cross tube of metallic support is caught in the transversely U-shaped clip on bracket top；
After the guide rod is inserted into longitudinal guide rod hole, the guide rod be located at the open side of the U-shaped clip and close to
The cross tube of the metallic support；
The hose one terminates the fuel sucking pipe upper end, and the other end is connected to auxiliary fuel tank；
The hose is fixed on the metallic support.
Preferably, the hose is fixed on the metallic support by line bundle.
The hose is bellows.
In order to solve the above technical problems, injector head provided by the invention comprising be followed successively by head, ontology, tail along axial direction
Portion；
The head, ontology inner cavity be tubulose and connection；
The spray-hole of a connection chamber body is radially offered on the body outer wall.
Preferably, injector head further includes filter；
The internal diameter on injector head head is greater than the internal diameter of its ontology；
The filter is column, and filter cylindrical axes have one or more groove upwards；
The filter is fixed in injector head head.
Preferably, the inner cavity on injector head head is cylinder；
The filter is cylindric.
Preferably, each trench cross section of the filter cylindrical axes upwards is respectively less than the spray-hole section of injector head.
Preferably, the filter cylinder is fixed on together with injector head head inner wall interference fit.
Preferably, injector head head is cylindric；
Injector head head cylinder circumferentially has multiple convex ribs.
Preferably, injection head-tail is cylindric；
The outer diameter for spraying head-tail is greater than the outer diameter of head and ontology.
Preferably, injector head tail portion cylinder is equipped with asymmetric fluting.
Double jet pump structures of the invention increase by the second jet pump on the basis of fluid tube assembly, the second jet pump
The head of injector head is fixedly installed togather with the sealing of the second pipeline of fluid tube assembly, and injector head head is bearing area, bears
The system pressure of oil circuit；Fuel oil enters from head, sprays from the spray-hole on ontology, and oil inlet direction is vertical with fuel-displaced direction, spray
Perforation sprays the negative pressuren zone that fuel oil is formed and is located in fuel sucking pipe.Double jet pump structures of the invention, the injector head of the second jet pump
Ontology on fuel-displaced spray-hole be it is longitudinal, the lateral oil inlet with injector head head is perpendicular, and the lateral dimension of injector head becomes
It is smaller, so injector head ontology can be placed in the fuel sucking pipe combined closely with the second pipeline, it is compact-sized, it can be obviously reduced
The lateral dimension of double jet pump structures, so as to be arranged in double jet pump structures in limited oil storage barrel space.
Detailed description of the invention
In order to illustrate more clearly of technical solution of the present invention, the required attached drawing of the present invention is made below simple
It introduces, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ordinary skill people
For member, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is double jet pump oil pump bracket structural schematic diagrams of existing double active drive structures；
Fig. 2 is one embodiment schematic diagram of double jet pump structures of the invention；
Fig. 3 is the head end perspective view of one embodiment the second jet pump injector head of double jet pump structures of the invention；
Fig. 4 is the tail end perspective view of one embodiment the second jet pump injector head of double jet pump structures of the invention；
Fig. 5 is the head end front view of one embodiment the second jet pump injector head of double jet pump structures of the invention；
Fig. 6 is one embodiment fuel sucking pipe sectional view of double jet pump structures of the invention；
Fig. 7 is one embodiment the second injection pump working oil path schematic diagram of double jet pump structures of the invention；
Fig. 8 is one embodiment inlet line fixed structure schematic diagram of double jet pump structures of the invention；
Fig. 9 is one embodiment metal standoff structure schematic diagram of double jet pump structures of the invention.
Specific embodiment
Below in conjunction with attached drawing, clear, complete description is carried out to the technical solution in the present invention, it is clear that described
Embodiment is a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff all other embodiment obtained without making creative work, belongs to protection of the present invention
Range.
Embodiment one
For being placed in oil drum, oil drum is placed in main fuel tank double jet pump structures；Such as Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6 institute
Show, double jet pump structures include fluid tube assembly 3, the first jet pump 1, the second jet pump 2；
The fluid tube assembly 3 includes the first pipeline 32, the second pipeline 33, fuel sucking pipe 35；
First pipeline 32 is switched to the first jet pump 1；
Second pipeline 33 is switched to the second jet pump 2；
Second jet pump 2 includes injector head, and the injector head is followed successively by head 21, ontology 22, tail portion 23 along axial direction；
The head 21, ontology 22 inner cavity be tubulose and connection；
The spray-hole 25 of 22 inner cavity of a connection ontology is radially offered on 22 outer wall of ontology；
The head 21 of the injector head is embedded in the second pipeline, 21 outer wall of head and the sealed connection of the second pipeline 33, fuel oil from
Head 21 enters, and sprays from the spray-hole 25 on ontology 22, and oil inlet direction is vertical with fuel-displaced direction, and spray-hole 25 sprays fuel oil shape
At negative pressuren zone be located in the fuel sucking pipe 35.
Preferably, the ontology 22 of the injector head is located in the fuel sucking pipe 35, the spray-hole 25 on ontology 22 is towards institute
35 lower end of fuel sucking pipe is stated, 22 two sides of ontology have the gap between 35 tube wall of fuel sucking pipe.
Preferably, the side of 35 tube wall of fuel sucking pipe is connected to the sealing of the second pipeline 33, and fuel sucking pipe 35 and the second pipeline
33 axis are vertical.
Preferably, double jet pump structures are for being placed in oil drum, oil drum is placed in main fuel tank；
First jet pump 1 is for the oil in main fuel tank to be drawn into oil drum；
Oil in auxiliary fuel tank is drawn onto oil drum by the second jet pump 2 by the fuel sucking pipe 35.
Double jet pump structures of embodiment one increase the second jet pump 2, the second injection on the basis of fluid tube assembly 3
The head 21 of the injector head of pump 2 is fixedly installed togather with the sealing of 3 second pipeline 33 of fluid tube assembly, and injector head head 21 is to hold
Intermediate pressure section bears the system pressure of oil circuit；Fuel oil enters from head 21, sprays from the spray-hole 25 on ontology 22, oil inlet direction
Vertical with fuel-displaced direction, spray-hole 25 sprays the negative pressuren zone that fuel oil is formed and is located in the fuel sucking pipe 35.Double sprays of embodiment one
Penetrate pump configuration, fuel-displaced spray-hole 25 is longitudinal on the ontology 22 of the injector head of the second jet pump 2, with injector head head laterally into
Hydraulic fluid port is perpendicular, and the lateral dimension of injector head becomes smaller, so injector head ontology 22 can be placed in the second pipeline 33 tightly
It is compact-sized in the fuel sucking pipe 35 of close combination, it can be obviously reduced the lateral dimension of double jet pump structures, so as to make double jet pumps
Structure is arranged in limited oil storage barrel space.
Embodiment two
Double jet pump structures based on embodiment one, the fluid tube assembly 3 further include third pipeline 31, the 4th pipeline
34；
Third pipeline 31 is used to send oil outside to fuel tank；
4th pipeline 34 is used for oil pump to 3 fuel feeding of fluid tube assembly.
Preferably, the first pipeline 32, third pipeline 33, the 4th pipeline 34 and fuel sucking pipe 35 axis be longitudinal；
The axis of second pipeline 33 is laterally.
Preferably, the first pipeline 32, third pipeline 33, the 4th pipeline 34 are ipsilateral the second pipeline 33, fuel sucking pipe 35 exists
The opposite side of second pipeline 33.
Preferably, the first pipeline 32 is downward, third pipeline 33 and the 4th pipeline 34 are upward.
The injector head of double jet pump structures of embodiment two, the second jet pump 2 is disposed in one end of fluid tube assembly 3,
Oil pump oil transportation is to fluid tube assembly 3, and when operation of oil pump, the spray-hole 25 on injector head ontology 22, which sprays fuel oil and formed, is located at institute
The negative pressuren zone in fuel sucking pipe 35 is stated, so as to which the oil in auxiliary fuel tank is drawn onto oil drum by fuel sucking pipe 35.
Embodiment three
Double jet pump structures based on embodiment one, as shown in figure 3, figure 4 and figure 5, the injector head of the second jet pump 2 also wrap
Include filter 24；
The internal diameter on the injector head head 21 is greater than the internal diameter of its ontology 22；
The filter 24 is column, and 24 cylindrical axes of filter have one or more groove 241 upwards；
The filter 24 is fixed in the injector head head 21.
Preferably, the inner cavity on the injector head head 21 is cylinder；
The filter 24 is cylindric.
Preferably, 241 section of each groove of 24 cylindrical axes of filter upwards is respectively less than the spray-hole of the second jet pump 2
25 sections.
Preferably, 24 cylinder of filter is fixed on together with 21 inner wall of injector head head interference fit.
Double jet pump structures of embodiment three are integrated with filter 24 in the injector head head 21 of second jet pump 1, described
The filter 24 integrated in injector head head 21 makes the injector head have the big anti-blocking ability of impurity of filtering.To make fluid hose group
Part 3 can demould, and need the injector head is separately fabricated, and filter 24 is first pressed into the injector head, then by the injector head
It is pressed onto fluid tube assembly 3.
The fuel sucking pipe 35 of double jet pump structures of embodiment three, 2 nozzle tip ontology of the second jet pump, 22 upper end becomes oil suction
Mouthful, fuel sucking pipe becomes diffusion region at 22 lower end of nozzle tip ontology, and 35 upper end of fuel sucking pipe is communicated to auxiliary fuel tank by long hose,
To which the oil of auxiliary fuel tank is drawn onto oil drum.The oil separated from fluid tube assembly 3, the groove 241 for first passing through filter 24 enter
In the ontology 22 of the nozzle tip, then pass through the diffusion at the penetrating of spray-hole 25 35 lower end of fuel sucking pipe towards 35 lower end of fuel sucking pipe
Area, forms negative pressuren zone in the fuel sucking pipe 35 around spray-hole 25, and negative pressuren zone will be by 35 upper end of fuel sucking pipe by the oil of auxiliary fuel tank
Sucking, the oil being inhaled into enter diffusion region by 22 two sides of ontology of the nozzle tip.
Example IV
Double jet pump structures based on embodiment one, the injector head head 21 of the second jet pump 2 are cylindric；
21 cylinder of injector head head is fixedly installed togather with 33 inner wall interference fit seal of the second pipeline.
Preferably, 21 cylinder of injector head head circumferentially has multiple convex ribs 211, for making the injector head head
21 are fixedly installed togather with 33 interference seal of the second pipeline.
Embodiment five
Double jet pump structures based on embodiment one, the tail portion 23 of the injector head of the second jet pump 2 are cylindric；
The outer diameter of the injection head-tail 23 is greater than the outer diameter of the injector head head 21 and ontology 22；
33 vertical connection of fuel sucking pipe 35 and the second pipeline, 35 tube wall side of fuel sucking pipe has mounting hole, when the injector head
When 21 outer wall of head is tightly connected with the second pipeline 33, mounting hole described in the injection head-tail 23 and 35 tube wall of fuel sucking pipe are sealed
Connection.
Preferably, 23 cylinder of injection head-tail is installed together with mounting hole interference fit seal.
Preferably, 23 cylinder of injection head-tail is equipped with asymmetric fluting 231, it ensure that the injector head is being pressed
After entering fluid tube assembly 3, spray-hole 25 is able to maintain straight down, and towards 35 lower end of fuel sucking pipe, which has positioning function
Energy.
Double jet pump structures of embodiment five, the tail portion 23 of the injector head of the second jet pump 2 are not bearing area, the spray
The outer diameter for penetrating head-tail 23 is greater than the outer diameter of head 21 and ontology 22, fluid hose component 3 can be enable smoothly to demould, convenient for described
Injector head rear molding assembly ahead is pressed into fluid tube assembly 3, and 23 cylinder of injection head-tail is equipped with asymmetric fluting 231,
The fluting 231 has positioning function, it is ensured that injector head spray-hole 25 after being pressed into fluid tube assembly 3 is able to maintain perpendicular
It is straight downward.
Embodiment six
Double jet pump structures based on embodiment one, as shown in fig. 7,35 lower end of the fuel sucking pipe is placed in an anti-siphon groove 10
It is interior；
The anti-siphon groove 10 is placed in oil drum；
The minimum point of 10 top edge of anti-siphon groove is higher than the scale liquid position of oil drum.
Preferably, the inner wall bottom surface of anti-siphon groove 10 is semicircle or arc.
Preferably, fluid tube assembly 3 is fitted into anti-siphon groove 10 after the injector head is installed in fluid tube assembly 3,
The injection tail end is resisted against anti-10 inner wall of siphon groove.When oil pressure is born on the injector head head 21, in anti-siphon groove 10
Wall can tightly abut against the injection tail end, and the injector head can be prevented to be forced out, this is the Redundancy Design of an anticreep.
Double jet pump structures of embodiment six, the oil of the auxiliary fuel tank sucked by the second jet pump 2 is by the second jet pump 2
22 two sides of injector head ontology spray into anti-siphon groove 10 after entering diffusion region, and oil is turned back upwards by anti-10 bottom of siphon groove, directly
It is entered in oil drum to anti-siphon groove 10 is overflowed；Oil during returning upwards, taken out of upwards, until anti-rainbow by the bubble in oil
Release is ruptured outside bothrium 10, is conducive to the release of bubble when hot oil.When oil pump stops working, the second no longer oil spout of jet pump 2,
Then under the action of siphon, the oil in anti-siphon groove 10 backs auxiliary fuel tank by fuel sucking pipe 35, until this small anti-siphon groove
The liquid level equal with auxiliary fuel tank pasta is drawn in 10；At this time since anti-10 edge of siphon groove is higher than the scale liquid position of oil drum, protect
The oil protected in oil drum is not sucked away, and when oil pump works again, can also be drawn onto the oil of enough height, therefore anti-siphon groove 10
Play the role of anti-siphon.
Embodiment seven
Double jet pump structures based on embodiment one, 22 external wall cross-section of ontology of the injector head of the second jet pump 2 can be with
It is rectangle, ellipse or spindle etc..22 shape of ontology of the injector head can be various shapes, as long as guaranteeing at ontology 22
Fuel sucking pipe 35 there is enough spaces to generate negative pressure.
Embodiment eight
Based on embodiment one, as shown in figure 8, double jet pump structures further include bracket 8, metallic support 9, guide rod 81, hose
82；
The fluid tube assembly 3, anti-siphon groove 10 are each attached on the bracket 8；
8 lower part of bracket is provided with a lateral circular hole, and middle part is equipped with a longitudinal guide rod hole, and top is provided with transverse direction
U-shaped clip 83；
As shown in figure 9, the metallic support 9 includes sequentially connected cross tube 91, vertical bar 92, sheer pole 93；Vertical bar 92
Perpendicular to cross tube 91 and sheer pole 93；
In the circular hole of end insertion 8 lower part of bracket of 9 sheer pole 93 of metallic support, then using the circular hole as center axis
Rotation, the cross tube 91 of metallic support 9 is caught in the transversely U-shaped clip 83 on 8 top of bracket.
After the guide rod 81 is inserted into the guide rod hole, the guide rod 81 is located at the open side of the U-shaped clip 83 simultaneously
It is adjacent to the cross tube 91 of the metallic support 9；
The hose 82 1 terminates 35 upper end of fuel sucking pipe, and the other end is connected to auxiliary fuel tank；
The hose 82 is fixed on the metallic support 9.
Preferably, the hose 82 is fixed on the metallic support 9 by line bundle.
Preferably, the hose 82 is bellows.
Double jet pump structures of embodiment eight, the hose for being connected to auxiliary fuel tank are fixed on metallic support, under the metallic support
Cross bar is first inserted into the circular hole on bracket, then rotates by center axis of the circular hole, metallic support cross tube is caught on bracket
U-shaped clip in, then by guide rod insertion bracket guide rod hole in, at this time guide rod very close to metallic support cross tube, when
Metallic support can be blocked to deviate from U-shaped clip by guide rod, play the role of anticreep in impact vibration.Embodiment
Five double jet pump structures, the hose for being connected to auxiliary fuel tank are fixed on metallic support, and pipeline, which can be fixed effectively, prevents vibration from damaging
Wound, metallic support are easily installed and have stronger anticreep ability.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (18)
1. a kind of double jet pump structures, which is characterized in that including fluid tube assembly, the first jet pump, the second jet pump；
The fluid tube assembly includes the first pipeline, the second pipeline, fuel sucking pipe；
First pipeline is switched to the first jet pump；
Second pipeline is switched to the second jet pump；
Second jet pump includes injector head, and the injector head is followed successively by head, ontology, tail portion along axial direction；
The head, ontology inner cavity be tubulose and connection；
The spray-hole of a connection chamber body is radially offered on the body outer wall；
The head of the injector head is embedded in the second pipeline, and head outer wall and the second pipeline are tightly connected, and fuel oil enters from head, from
Spray-hole on ontology sprays, and oil inlet direction is vertical with fuel-displaced direction, and the negative pressuren zone that spray-hole sprays fuel oil formation is located at described
In fuel sucking pipe；
Double jet pump structures are placed in oil drum, and oil drum is placed in main fuel tank；
Oil in main fuel tank is drawn into oil drum by the first jet pump；
Oil in auxiliary fuel tank is drawn onto oil drum by the second jet pump by the fuel sucking pipe；
The tail portion of the injector head is cylindric；
The outer diameter of the injection head-tail is greater than the outer diameter of the injector head head and ontology；
Fuel sucking pipe and the second pipeline vertical connection, oil suction tube wall side have mounting hole, and when the injector head head, outer wall is same
When second pipeline is tightly connected, the injection head-tail is tightly connected by the mounting hole and oil suction tube wall.
2. double jet pump structures according to claim 1, which is characterized in that
The ontology of the injector head is located in the fuel sucking pipe, and the spray-hole on ontology is towards the fuel sucking pipe lower end, ontology two
Side has the gap between the oil suction tube wall.
3. double jet pump structures according to claim 1, which is characterized in that
The fluid tube assembly further includes third pipeline, the 4th pipeline；
Third pipeline is used to send oil outside to fuel tank；
4th pipeline is used for oil pump to fluid tube assembly fuel feeding.
4. double jet pump structures according to claim 1, which is characterized in that
The injector head further includes filter；
The internal diameter on the injector head head is greater than the internal diameter of its ontology；
The filter is column, and filter cylindrical axes have one or more groove upwards；
The filter is fixed in the injector head head.
5. double jet pump structures according to claim 4, which is characterized in that
The inner cavity on the injector head head is cylinder；
The filter is cylindric.
6. double jet pump structures according to claim 4, which is characterized in that
The upward each trench cross section of the filter cylindrical axes is respectively less than the spray-hole section of the injector head.
7. double jet pump structures according to claim 4, which is characterized in that
The filter cylinder is fixed on together with injector head head inner wall interference fit.
8. double jet pump structures according to claim 3, which is characterized in that
First pipeline, third pipeline, the 4th pipeline and fuel sucking pipe axis be longitudinal；
The axis of second pipeline is laterally.
9. double jet pump structures according to claim 1, which is characterized in that
The injector head head is cylindric；
Injector head head cylinder circumferentially has multiple convex ribs, for keeping the injector head head close with the second pipeline interference
Envelope is fixedly installed togather.
10. double jet pump structures according to claim 1, which is characterized in that
Injector head tail portion cylinder is installed together with the mounting hole interference fit seal.
11. double jet pump structures according to claim 1, which is characterized in that
Injector head tail portion cylinder is equipped with asymmetric fluting.
12. double jet pump structures according to claim 1, which is characterized in that
The fuel sucking pipe lower end is placed in an anti-siphon groove；
The anti-siphon groove is placed in oil drum；
The minimum point of the anti-siphon groove top edge is higher than the scale liquid position of oil drum.
13. double jet pump structures according to claim 12, which is characterized in that
Anti- siphon groove inner wall bottom surface is arc.
14. double jet pump structures according to claim 12, which is characterized in that
After the injector head is installed in fluid tube assembly by mounting hole, fluid tube assembly is fitted into anti-siphon groove, described
Injection tail end is resisted against anti-siphon groove inner wall.
15. double jet pump structures according to claim 1, which is characterized in that
Injector head body outer wall cross section is rectangle, ellipse or spindle.
16. double jet pump structures according to claim 12, which is characterized in that
Double jet pump structures further include bracket, metallic support, guide rod, hose；
The fluid tube assembly, anti-siphon groove are each attached on the bracket；
The bracket lower part is provided with a lateral circular hole, and middle part is equipped with a longitudinal guide rod hole, and top is provided with lateral U-shaped
Clip；
The metallic support includes sequentially connected cross tube, vertical bar, sheer pole；Vertical bar is perpendicular to cross tube and sheer pole；
In the lateral circular hole of the end insertion bracket lower part of the metallic support sheer pole, then using the transverse direction circular hole as center axis
Rotation, the cross tube of metallic support is caught in the transversely U-shaped clip on bracket top；
After the guide rod is inserted into longitudinal guide rod hole, the guide rod is located at the open side of the U-shaped clip and close to described
The cross tube of metallic support；
The hose one terminates the fuel sucking pipe upper end, and the other end is connected to auxiliary fuel tank；
The hose is fixed on the metallic support.
17. double jet pump structures according to claim 16, which is characterized in that
The hose is fixed on the metallic support by line bundle.
18. double jet pump structures according to claim 16, which is characterized in that
The hose is bellows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610938909.0A CN106401819B (en) | 2016-10-31 | 2016-10-31 | Double jet pump structures and injector head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610938909.0A CN106401819B (en) | 2016-10-31 | 2016-10-31 | Double jet pump structures and injector head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106401819A CN106401819A (en) | 2017-02-15 |
| CN106401819B true CN106401819B (en) | 2019-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610938909.0A Active CN106401819B (en) | 2016-10-31 | 2016-10-31 | Double jet pump structures and injector head |
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| Country | Link |
|---|---|
| CN (1) | CN106401819B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900580A (en) * | 2012-09-10 | 2013-01-30 | 联合汽车电子有限公司 | Oil pump support assembly |
| CN203022933U (en) * | 2012-12-06 | 2013-06-26 | 联合汽车电子有限公司 | Auxiliary fuel pump support assembly |
| CN206309505U (en) * | 2016-10-31 | 2017-07-07 | 联合汽车电子有限公司 | Double jet pump structures and injector head |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1911962A1 (en) * | 2006-09-29 | 2008-04-16 | Inergy Automotive Systems Research (SA) | Single piece dual jet pump and fuel system using it |
-
2016
- 2016-10-31 CN CN201610938909.0A patent/CN106401819B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900580A (en) * | 2012-09-10 | 2013-01-30 | 联合汽车电子有限公司 | Oil pump support assembly |
| CN203022933U (en) * | 2012-12-06 | 2013-06-26 | 联合汽车电子有限公司 | Auxiliary fuel pump support assembly |
| CN206309505U (en) * | 2016-10-31 | 2017-07-07 | 联合汽车电子有限公司 | Double jet pump structures and injector head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106401819A (en) | 2017-02-15 |
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