CN108150329A - Fuel supply system - Google Patents
Fuel supply system Download PDFInfo
- Publication number
- CN108150329A CN108150329A CN201711236511.3A CN201711236511A CN108150329A CN 108150329 A CN108150329 A CN 108150329A CN 201711236511 A CN201711236511 A CN 201711236511A CN 108150329 A CN108150329 A CN 108150329A
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- China
- Prior art keywords
- fuel
- jet pump
- storage cup
- chamber
- neck
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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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The present invention provides a kind of fuel supply system.The fuel supply system makes the The fuel stream in jet pump units smooth, improves the fuel discharge performance of jet pump units.Fuel supply system includes the storage cup being located in fuel tank and for the fuel in fuel tank to be picked up to the jet pump units (60) in storage cup.The peripheral portion of the opening portion (27) of bottom wall of the jet pump units (60) including being located at jet pump main body (60a) on the bottom of storage cup, storage cup and for being opened and closed the open and close valve of opening portion (27) (50).Jet pump main body (60a), which has, to be formed for fuel from the pump case (66) for the chamber (61) that opening portion (27) flow into, for spraying the nozzle of discharging jet (63) and for the fuel in chamber (61) to be transplanted on to the neck (65) in storage cup.Guide surface (67) is formed in the connecting portion between neck (65) for the internal face for forming chamber (61).
Description
Technical field
The present invention relates to a kind of fuel supply systems.In detail, it is related to a kind of fuel supply system with jet pump.
More particularly, it is related to a kind of fuel for the fuel being used for into the fuel tank that internal combustion engine supply is mounted on the vehicles such as automobile to supply
To device.
Background technology
Mode using fuel of from the fuel supply system to internal combustion engine supply fuel tank is widely known.Such as patent document
Fuel supply system recorded in 1 includes the storage cup being located in fuel tank and is located in storage cup and for will be in fuel tank
Fuel picks up the jet pump units in storage cup.Jet pump units include being located at the jet pump master on the bottom of storage cup
Body, storage cup bottom opening opening portion and open and close valve for being opened and closed opening portion.Jet pump main body, which has, forms confession
The pump case for the chamber that fuel is flowed into from opening portion, the spray that the discharging jet for making open and close valve valve opening in the chamber and for ejection is arranged
Mouth and it is connected with chamber and the neck for flowing in storage cup the transfer indoor fuel of chamber with ejections of nozzle.
However, this jet pump units take the jet pump shown in jet pump units 200 and Figure 19 shown in Figure 18 sometimes
The shape of unit 210.That is, the part (base end part) mostly as the neck 203 of straight tube-like enters chamber in plan view
Shape (with reference to Figure 18) in room 201 or the shape as the connecting portion between chamber 211 and neck 213 close to right angle (are joined
According to Figure 19).In addition, form the internal face of the connecting portion side between neck 203,213 of the internal face of chamber 201,211
201a, 211a form planar with the axis vertical take-off of nozzle 205,215.
Existing technical literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2015-148214 bulletins
Invention content
Problems to be solved by the invention
But the neck 203 as straight tube-like a part enter shape (with reference to Figure 18) in chamber 201 or
When person becomes shape (with reference to Figure 19) of the connecting portion between chamber 211 and neck 213 close to right angle, generate in jet pump units
200th, 210 fuels cannot swimmingly flow this problem.Its reason thinks as follows.That is, the fuel in chamber 201,211
When being flowed into neck 203,213 with the discharging jet from nozzle 205,215, The fuel stream leans on nozzle neck 203,213
The connecting portion stripping of side, The fuel stream generate contracting stream (with reference to the arrow F in Figure 18 and Figure 19).That is, the flowing hair of fuel
It is raw to stagnate (Japanese：Lake body) it is considered as the reason of fuel cannot swimmingly flow.Accordingly, there exist the fuel sprays of jet pump units
Go out reduced performance this problem.
The problem of present invention is to be solved is to make the The fuel stream in jet pump units smooth, improves the fuel of jet pump units
Discharge performance.
The solution to the problem
The present invention takes following means to solve the problem above-mentioned.
The 1st invention of the present invention is a kind of fuel supply system, including：Storage cup is located in fuel tank；And spray
Pump unit is penetrated, is located in the storage cup, for the fuel in the fuel tank to be picked up in the storage cup, wherein,
The jet pump units include being located at the jet pump main body on the bottom of the storage cup, the bottom opening in the storage cup
Opening portion peripheral portion and open and close valve for being opened and closed the opening portion, the jet pump main body, which has, to be formed for fuel
The pump case of the chamber flowed into from the opening portion is arranged in the chamber and for spraying the discharging jet for making the open and close valve valve opening
Nozzle and be connected with the chamber and the indoor fuel of the chamber be transplanted on the storage with the discharging jet of the nozzle
The neck in cup is deposited, is formed with to make from described in the connecting portion between the neck for the internal face for forming the chamber
The The fuel stream of chamber towards the neck becomes the guide surface smoothly flowed.
According to the 1st above-mentioned invention, it is formed with to make in the connecting portion between neck for the internal face for forming chamber
Become the guide surface smoothly flowed towards the The fuel stream of neck from chamber.The fuel stream is swimmingly flowed into neck from chamber as a result,
Portion can improve the fuel discharge performance that fuel is sprayed from jet pump units.
According to the 1st invention, in the 2nd invention of the present invention, the guide surface that is formed on the internal face of the chamber
It is inclined surface.
According to the 2nd above-mentioned invention, the The fuel stream from chamber towards neck is made to become smoothly flowing, be formed in chamber
Internal face on guide surface be inclined surface.Inflow as a result, from from chamber to neck is good.
According to the 1st invention or the 2nd invention, in the 3rd invention of the present invention, the storage cup is being arranged on the fuel
In the state of in case during overlook observation, the center of the opening portion is in the position of the axis misalignment from the nozzle.
According to the 3rd above-mentioned invention, the center of the opening portion of storage cup bottom is in the axis from nozzle in plan view
The position that line is staggered.Thereby, it is possible to form broad free space in storage cup, it is possible to realize efficiently using for space.
According to the 3rd invention, in the 4th invention of the present invention, the neck is configured along the internal face of the storage cup, institute
Opening portion configuration is stated in the separated position of the internal face for being configured with the neck from the storage cup.
According to the 4th above-mentioned invention, due to that jet pump units can be configured along the internal face of the wall portion of storage cup,
Space saving can be equally realized with the 3rd invention, can efficiently use the space in storage cup.
The effect of invention
The invention is characterized in that above-mentioned means, so as to make the The fuel stream in jet pump units smooth, are improved from spray
Penetrate the fuel discharge performance that pump unit sprays fuel.
Description of the drawings
Fig. 1 is the main sectional view for the fuel supply system for representing embodiment 1.
Fig. 2 is the main sectional view for the jet pump units for representing Fig. 1.
Fig. 3 is the sectional view for the jet pump units for representing Fig. 1.
Fig. 4 is the sectional view of bowing for the jet pump units for representing Fig. 1.
Fig. 5 is by the stereogram of the jet pump units exploded representation of Fig. 1.
Fig. 6 is the sectional view of bowing for the jet pump units for representing embodiment 2.
Fig. 7 is the sectional view of bowing for the jet pump units for representing embodiment 3.
Fig. 8 is the sectional view of bowing for the jet pump units for representing embodiment 4.
Fig. 9 is the main sectional view for the jet pump units for representing embodiment 5.
Figure 10 is the sectional view for the jet pump units for representing Fig. 9.
The sectional view of bowing of the jet pump units of Figure 11 Fig. 9.
Figure 12 is to represent to be configured with the sectional view of bowing of the storage cup of jet pump units.
Figure 13 is the sectional view for representing to be configured with the storage cup of jet pump units.
Figure 14 is the sectional view of bowing for the jet pump units for representing embodiment 6.
Figure 15 is the vertical view for representing the jet pump units of the configuration of embodiment 6 in storage cup.
Figure 16 is the sectional view for representing the jet pump units of the configuration of embodiment 6 in storage cup.
The sectional elevation of the jet pump units of Figure 17 embodiments 7.
Figure 18 is the sectional view of bowing for the jet pump units for representing previous example.
Figure 19 is the sectional view of bowing for the jet pump units for representing previous example.
Reference sign
10th, fuel supply system；12nd, fuel tank；20th, storage cup；21st, side wall (wall portion)；23rd, bottom wall (bottom)；23a、
Seat board portion (peripheral portion of opening portion)；27th, opening portion；50th, open and close valve；60th, jet pump units；60a, jet pump main body；61st, chamber
Room；63rd, nozzle；65th, neck；66th, pump case；67th, guide surface；70th, jet pump units；80th, jet pump units；80a, jet pump master
Body；81st, chamber；86th, pump case；87th, guide surface；90th, jet pump units；91st, chamber；97th, guide surface；100th, jet pump units；
100a, jet pump main body；101st, chamber；106th, pump case；107th, guide surface；110th, jet pump units；110a, jet pump main body；
120th, storage cup；121st, side wall (side)；140th, jet pump units；150th, open and close valve.
Specific embodiment
Hereinafter, use description of the drawings embodiments of the present invention.
[embodiment 1]
Illustrate the outline structure of fuel supply system entirety according to Fig. 1.Fig. 1 shows fuel supply of the configuration in fuel tank
The main sectional view of device.Fuel supply system 10 is arranged in the fuel tank 12 of automobile, for being supplied to engine (internal combustion engine)
Fuel in fuel tank 12.Opening portion 12b is formed on the upper wall portions 12a of fuel tank 12.Opening portion 12b is by 13 envelope of The lid component
It closes.Ejiction opening 49 is equipped in The lid component 13.In addition, the direction used in the present specification is with the lid in the fuel tank 12 of Fig. 1
The mode that side residing for component 13 is upside, the side residing for aftermentioned jet pump units 60 is downside illustrates.In addition,
Arrow in figure represents the upper and lower directions all around of fuel supply system.In addition, all around direction is not specific.
As shown in Figure 1, fuel supply system 10 includes storage cup 20, fuel filter 30, petrolift 40 and jet pump
Unit 60.Storage cup 20 is, for example, resin system, is by the cup component (container) of the bottomed cylindrical of upper surface open.Storage cup
20 have side wall 21 cylindrical when looking down and close the bottom wall 23 of the lower surface opening portion of the side wall 21.In addition, storage
Cup 20 has the foot section 25 of pair of right and left arc-shaped in the lower surface of bottom wall 23, with the bottom wall part being positioned in fuel tank 12
State on 12c is configured.Side wall 21 is equivalent to " wall portion " described in this specification.Bottom wall 23 is equivalent in this specification
Described " bottom ".
The letter C shape that fuel filter 30 is formed as letter-c-shaped when looking down is cylindric.Fuel filter 30 is formed as
The filter portion 33 in filter portion 31 and peripheral side with inner circumferential side it is bag-shaped.Two filter portions 31,33 are for example including nonwoven
The filtering materials such as cloth.The frame of skeletal like is installed between the filter portion 31 of inner circumferential side and the filter portion 33 of peripheral side
35.Frame 35 is, for example, resin system, is used to that two filter portions 31,33 to be kept to space between.In addition, in fuel filtering
The lower end in the filter portion 31 of the inner circumferential side of device 30 connects the connection just extended in the radial direction of oriented fuel filter 30
The one end of pipe 37.Connecting tube 37 is connected with the inner space of fuel filter 30.
Petrolift 40 is to suck the fuel in storage cup 20 and the fuel in ejection storage cup 20 via fuel filter 30
Electric fuel pump.The another of connecting tube 37 is connected in the fuel suction port (not shown) set on the lower end of petrolift 40
End.Pressure regulator 43 is connected in the fuel ejiction opening (not shown) set on the upper end of petrolift 40.Pressure regulator 43 is used to adjust
The pressure of the whole fuel to gush out from petrolift 40, and remaining residual fuel is transplanted on jet pump units by connecting tube 45
60.It is fed by the fuel of 43 pressure regulation of pressure regulator by hose 47 from ejiction opening 49 through not shown fuel supplying tubing
Internal combustion engine.In addition, jet pump units 60 are used to pick up the fuel in fuel tank 12 in storage cup 20.
Then, according to fig. 2~Fig. 5 illustrates jet pump units 60.Fig. 2 is the main sectional view for representing jet pump units.Fig. 3 is
Represent the sectional view of jet pump units.Fig. 4 is the sectional view of bowing for representing jet pump units.Fig. 5 is to decompose jet pump units
The stereogram of expression.An as shown in Fig. 2, part of the jet pump units 60 with jet pump main body 60a, the bottom wall 23 of storage cup 20
The peripheral portion 23a and open and close valve 50 of i.e. aftermentioned opening portion 27.The peripheral portion 23a of opening portion 27 is referred to as seat board portion 23a.
The opening portion 27 of circular hole is formed on the bottom wall 23 of storage cup 20, is used for fuel tank 12 (with reference to Fig. 1)
Fuel imported into storage cup 20.Central part in opening portion 27 is configured with boss portion 28.Boss portion 28 is by more (such as 3
Root) supporting slice 28a (in fig. 2 represent 1) is supported on bottom wall 23 (with reference to Fig. 5).Peripheral portion in the opening portion of bottom wall 23 27
Mounting portion 29 is formed on 23a, which is to surround opening portion 27 and left and right directions is made (to be right and left in Fig. 2 and Fig. 4
To) the wall-like component of longer oval tubular (with reference to Fig. 5).
As shown in Figures 2 and 3, open and close valve 50 is formed such as resin flexible by rubber, can be opened and closed
The mode of opening portion 27 formed on the bottom wall 23 of storage cup 20 is installed.In figure 2 and figure 3 opening and closing is illustrated with double dot dash line 50
The closed valve state of valve 50 illustrates its valve opening state with solid line 50.Open and close valve 50 is the umbellate form valve for including umbrella portion 51 and axle portion 52.
Umbrella portion 51 is formed in the one end (seeing it is upper end in Fig. 2, Fig. 3) of axle portion 52.Axle portion 52 is with being capable of (upper and lower in an axial direction
To) mobile mode is supported in the boss portion 28 of storage cup 20.It is formed with to make axle portion 52 anti-in the lower end of axle portion 52
De- anti-delinking part 53.Umbrella portion 51 is carried out the peristoma portion of the opening portion 27 of the upper surface of the bottom wall 23 of storage cup 20 as seat portion
It dropping place and offs normal.Open and close valve 50 is the check-valves for preventing the fuel adverse current in storage cup 20.
Jet pump main body 60a includes pump case 66, nozzle 63 and neck 65.Pump case 66 is formed as down cupuliform, and having makes
The flat upper wall portions 66b of the upper surface of the side of sidewall portion 66a and closed side wall portion 66a of the longer hexagonal tubular of left and right directions.
It is formed in the lower end of side of sidewall portion 66a in the elliptoid flange part 68 for making left and right directions longer (with reference to Fig. 5).Jet pump master
Flange part 68 by being pressed into the mounting portion 29 of storage cup 20 and on the seat board portion 23a of bottom wall 23 by body 60a.By
This, is formed with the chamber 61 that lower surface is stored for the seat board portion 23a closings of cup 20 in pump case 66.Chamber 61 is from opening for fuel
The space that oral area 27 flows into.
Nozzle 63 is formed as the straight tube-like extended along left and right directions, and nozzle passage 63a is formed in pipe.Nozzle 63
It is configured in the upper end in pump case 66, base end part (right part) is supported on the right part of the side of sidewall portion 66a of pump case 66.It is spraying
The top end part (left part) of mouth 63 is formed with the nozzle ejiction opening 63c being connected with nozzle passage 63a.With nozzle passage 63a phases
Than the passage sections product of nozzle ejiction opening 63c reduces.In addition, as shown in figure 4, the axis 63L of nozzle 63 is in the left and right of pump case 66
The centre position in direction (being upper and lower directions in Fig. 4) extends along left and right directions.In addition, axis 63L is with passing through opening portion 27
Center center line 27L it is orthogonal.In addition, as shown in Fig. 2, the base end part (right part) in nozzle 63 is formed with and bends upward
Connecting section 69.Connecting tube 45 is connected in connecting section 69.Residual fuel from pressure regulator 43 (with reference to Fig. 1) passes through
Connecting tube 45 is fed into nozzle passage 63a.The fuel is ejected into chamber 61 by nozzle passage 63a from nozzle ejiction opening 63c
It is interior.The discharging jet formed using the ejection is directed towards what is carried out in neck 65.
Neck 65 is the effuser for spraying the fuel in chamber 61 into storage cup 20.Neck 65 is arranged with nozzle 63
On same axis.Therefore, neck 65 is set as straight tube-like.The base end part (right part) of neck 65 and the top end part of nozzle 63
(left part) is spaced as defined in separating in opposite shape configuration.Neck 65 is as the discharging jet from nozzle 63 is by the combustion in chamber 61
Material, which is transplanted in storage cup 20, makes its outflow.
As shown in figure 4, the shape for forming the flange part 68 of the pump case 66 of chamber 61 is to make left and right directions longer when looking down
Elliptical shape.The interior shape of the side of sidewall portion 66a of internal face, that is, pump case 66 of chamber 61 is hexagon shape when looking down.In addition, side
The outer similar figures for being formed as interior shape of wall portion 66a.The The fuel stream being connected with the entrance of neck 65 of the internal face of chamber 61 is drawn
Guide face becomes front and rear a pair of of guide surface 67.Two guide surfaces 67 be formed as going with the entrance towards neck 65 and opening section product by
The small inclined surface shape of gradual change.
In addition, as shown in figure 5, the shape of the internal face of the mounting portion 29 of storage cup 20 becomes with jet pump main body 60a's
The corresponding shape of shape of flange part 68.In addition, the shape of the outside wall surface of mounting portion 29 becomes the similar of the shape of internal face
Shape.Jet pump main body 60a is assembled by the internal face that its flange part 68 is pressed into mounting portion 29.
Then, illustrate the effect of the jet pump units 60 of above-mentioned embodiment 1.In the nozzle passage 63a to nozzle 63
When supplying the residual fuel from pressure regulator 43, the fuel is sprayed into chamber 61 from nozzle ejiction opening 63c.In the discharging jet
Under effect, the pressure in chamber 61 declines.That is, generating negative pressure in chamber 61, open and close valve 50 floats, is opened by what umbrella portion 51 blocked
Oral area 27 opens.The fuel in fuel tank 12 is sucked into chamber 61 from open opening portion 27.The fuel of the sucking cost from
The discharging jet that nozzle ejiction opening 63c gushes out, fuel are flowed into neck 65 and are ejected into storage cup 20.
Above-mentioned flows from the fuel that opening portion 27 is flowed into chamber 61 with the discharging jet from nozzle ejiction opening 63c
When entering to the entrance of neck 65, two guide surfaces 67 being formed on the internal face of chamber 61 are guided and are flowed into neck 65.
Guide surface 67 is formed as going with the entrance towards neck 65 and opening section accumulates gradually smaller inclined surface shape.Thus, such as
Shown in Fig. 4, the The fuel stream F1 being flowed into neck 65 becomes smooth, it is suppressed that contracting stream is generated in neck 65.Thus, with previous example
(with reference to Figure 18 and Figure 19) is compared, and the fuel discharge performance of jet pump units 60 rises.
[embodiment 2]
Then, illustrate the jet pump units of embodiment 2.Embodiment 2 is as shown in Figure 6.In addition, in embodiment 2
In explanation, saved sometimes through pair reference numeral identical with the constituting parts mark that above-mentioned embodiment 1 is substantially the same
Slightly its explanation.The explanation of later embodiment is also same.In the jet pump units 70 of embodiment 2, with embodiment party
Formula 1 is similary, and the internal face and neck as chamber 61 is formed on the side of sidewall portion 66a of the pump case 66 of jet pump main body 60a
Front and rear a pair of of guide surface 67 of the guide surface for the The fuel stream that 65 entrance is connected.Similary, two guide surfaces, 67 shape with embodiment 1
As being gone with the entrance towards neck 65 and opening section accumulates gradually smaller inclined surface shape.That is, axially (in Fig. 6
It is left and right directions during middle observation) it is formed obliquely.In addition, the corner of the connecting portion between two guide surfaces 67 and neck 65 is carried out
Chamfering forms fillet surface 77a.Fillet surface 77a is set to the smoothly shape of rounded shapes.As a result, with embodiment 1
The situation of (with reference to Fig. 4) is compared, and more swimmingly The fuel stream F2 is made to be flowed into neck 65 using guide surface 67.Thus, jet pump
The fuel discharge performance of unit 70 rises.
[embodiment 3]
Then, illustrate the jet pump units of embodiment 3.Embodiment 3 is as shown in Figure 7.In the jet pump of embodiment 3
In unit 80, the side of sidewall portion 86a of the pump case 86 of jet pump main body 80a is formed as circular when looking down.On side of sidewall portion 86a,
The guide surface of The fuel stream being connected with the entrance of neck 65 of internal face as chamber 81 is formed with front and rear a pair of of guide surface 87.
Similary with above-mentioned embodiment 1,2, which is formed as going with the entrance towards neck 65 and opening section accumulates
Gradually smaller inclined surface shape.In addition, the guide surface 87 of the embodiment 3 is formed as curved.In particular, be formed as court
To the shape for being tilted towards inside and heaving slightly of the axial direction (being left and right directions when observing in the figure 7) of neck 65.In embodiment 3
In, by the way that guide surface 87 is set as curved, so as to similary with above-mentioned embodiment 1,2, The fuel stream F3 is swimmingly to flow
Mode be guided, and from chamber 81 towards neck 65 in, the fuel discharge performances of jet pump units 80 rises.In addition, implement
The indoor shape on right side when being observed in Fig. 7 of the chamber 81 of mode 3 is also formed as semi-circular shape when looking down.
[embodiment 4]
Then, illustrate the jet pump units of embodiment 4.Embodiment 4 is as shown in Figure 8.Embodiment 4 is to change reality
Apply what the part of mode 3 (with reference to Fig. 7) formed.In the jet pump units 90 of embodiment 4, the internal face as chamber 91
The guide surface of The fuel stream being connected with the entrance of neck 65, it is front and rear a pair of guide surface 97 shape be and above-mentioned embodiment
3 curved identical (with reference to Fig. 7).But the indoor shape on right side when being observed in Fig. 8 of chamber 91 is and above-mentioned Fig. 5
The different shape of embodiment 3.That is, the right half part of the side of sidewall portion 86a of the pump case 86 of jet pump main body 80a is when looking down
The shape of Japanese katakana U.The shape on the right side of chamber 91 is different from embodiment 3, but embodiment 4 plays and embodiment party
The identical effect of formula 3.
[embodiment 5]
Then, illustrate the jet pump units of embodiment 5.Embodiment 5 is as shown in Fig. 9~Figure 11.In embodiment 5
In jet pump units 100, the side of sidewall portion 106a of the pump case 106 of jet pump main body 100a is formed as semi-annular shape when looking down.Side
The rear wall parts 106b of wall portion 106a is formed as flat surface (with reference to Figure 11).As shown in figure 11, pass through the opening portion 27 of storage cup 20
The center line 27L at center from the axis 63L of nozzle 63, (being lower section in fig. 11) is staggered (offset) forwards.That is, be formed as
The form that chamber 101 is protruded from 65 lateral directions (front) of nozzle 63 and neck.Therefore, the chamber 101 of embodiment 5 exists
Be formed as the rounded shapes (Japanese heaved downwards when being observed in Figure 11：Ball body shape).Moreover, the guide surface of embodiment 5
107 are formed in from the internal face of the front side of chamber 101 to the connecting portion position of neck 65.In addition, guide surface 107 is towards axial direction
(being left and right directions when observing in fig. 11) is formed obliquely.It is similary with above-mentioned each embodiment using the guide surface 107,
The fuel stream F5 is guided in a manner of swimmingly flowing, and from chamber 101 towards neck 65, and the fuel of jet pump units 100 sprays
Go out performance rising.
In addition, the center line 27L at the center for passing through opening portion 27 is from the axis of nozzle 63 forwards (under being in fig. 11
Side) it is staggered (offset).Thereby, it is possible to open and close valve 50 is avoided to generate nozzle 63 to interfere and be set to the height and position of nozzle 63
Relatively low (with reference to Fig. 9 and Figure 10).
Then, the advantages of illustrating the jet pump units 100 of the present embodiment situation in storage cup 20 is configured.Figure 12
The configuration in storage cup 20 is configured in the jet pump units 100 for representing the embodiment 5 shown in above-mentioned Fig. 9~Figure 11 with Figure 13
Structure.As shown in Figure 12 and Figure 13, jet pump units 100 close to the side wall 21 of storage cup 20 rear lateral portion set.Above-mentioned
The rear wall parts 106b of the side of sidewall portion 106a of the pump case 106 of the jet pump main body 100a of the jet pump units 100 of embodiment 5 is formed
For flat surface (with reference to Figure 11).As a result, with the front and rear sides portion of the side of sidewall portion of pump case from 65 lateral sides side of nozzle 63 and neck
Prominent shape is compared, and jet pump units 100 can be made to be configured close to 21 side of side wall of storage cup 20.Thus, it is possible to storing
It deposits and broad free space is formed in cup 20, it is possible to realize efficiently using for the space in storage cup 20.
That is, neck 65 is configured along the internal face of the side wall 21 of storage cup 20, opening portion 27 was configured in matching from side wall 21
It is equipped with the separated position of the internal face of neck 65.Thus, it is possible to make jet pump units 100 along in the side wall 21 of storage cup 20
Wall surface is configured, therefore can realize space saving, can efficiently use the space in storage cup 20.In addition, by storage cup
20 corner configuration jet pump units 100, so as to efficiently use the corner of storage cup 20, and can increase storage cup 20
The interior space for carrying other component.
Additionally, there are be connected in the up-down direction in flat fuel filter 161 with horizontal as shown in figure 13
The situation of the fuel suction port of petrolift 40.It in this case, can be a part for fuel filter 161 be overlapped injection
Mode on the jet pump main body 100a of pump unit 100 is configured.
[embodiment 6]
Then, illustrate the jet pump units of embodiment 6.Embodiment 6 is as shown in figure 14.Embodiment 6 is will to implement
What the part change of mode 5 (with reference to Fig. 9~Figure 11) formed.Compared with embodiment 5, in the jet pump list of embodiment 6
In member 110, it is staggered to the right the about radius a considerable amount with opening portion 27 by the center line 27L at the center of opening portion 27.
Figure 15 and Figure 16 represents the configuration being configured in storage cup 120 of the embodiment 6 shown in above-mentioned Figure 14
Structure.As shown in Figure 15 and Figure 16, the storage cup 120 of embodiment 6 is, for example, resin system, is that upper surface open is had bottom
The cup component (container) of round bottom shape.Storage cup 120 has when looking down in the side wall 121 of substantially alphabetical D-shaped.Side wall 121 has
The circular arc wall part 121b of flat plain wall section 121a and arc-shaped.Plain wall section 121a is towards rear.Jet pump units
110 position on the right side in storage cup 120 is set in a manner of along the internal face of the plain wall section 121a of side wall 121.
That is, neck 65 is configured along the internal face of the plain wall section 121a of side wall 121.Make jet pump units 110 as a result, close to storage cup
The plain wall section 121a of 120 side wall 121.Thus, it is possible to broad free space is formed in storage cup 120, it is possible to realize
Space efficiently uses.Side wall 121 is equivalent to " wall portion " described in this specification.
In addition, in embodiment 6, it is equipped with the jet pump main body along jet pump units 110 as shown in Figure 15 and Figure 16
The shape of 110a and along the labyrinth wall 122 of shape as the interior shape of plain wall section 121a and circular arc wall part 121b.Labyrinth
Wall 122 is formed as longitudinal wall shape.In addition, the right side rear end of the one end (right part) of labyrinth wall 122 and circular arc wall part 121b
It is connected.Labyrinth wall 122 surrounds the front side of jet pump main body 110a, and with the left side of plain wall section 121a and circular arc wall portion
That divides the left side of 121b is spaced apart defined compartment of terrain extension.The other end of labyrinth wall 122 extends to circular arc wall part
Near the front end of 121b.It is formed with to guide the fuel to gush out from neck 65 between side wall 121 and labyrinth wall 122
Guide flow path 124.Thereby, it is possible to make from the fuel that neck 65 gushes out along guiding flow path 124 swimmingly into storage cup 120
It flows into.
[embodiment 7]
Then, illustrate the jet pump units of embodiment 7.Embodiment 7 is as shown in figure 17.Embodiment 7 is will to implement
The open and close valve 50 of mode 5 (with reference to Figure 10) changes what is formed.The open and close valve 150 of the jet pump units 140 of embodiment 7 is reed
Valve.Open and close valve 150 is formed as the tabular of flexible resin.Open and close valve 150 is configured in a manner of closed peristome 27
(in fig. 17 with reference to double dot dash line 150) on the seat board portion 23a of storage cup 20.The front end of open and close valve 150 utilizes installation
Component 153 is fixed on seat board portion 23a.Open and close valve 150 (is joined in fig. 17 using the negative pressure opening generated in chamber 101
According to the facts line 150).In this case, since the The fuel stream F6 from opening portion 27 is also swimmingly flowed towards nozzle 63, spray
The fuel discharge performance for penetrating pump unit 140 rises.In addition, being set on for embodiment 1 (with reference to Fig. 2) is omitted in present embodiment
The boss portion 28 of opening portion 27 and supporting slice 28a.
This concludes the description of represent the present invention particular configuration each embodiment, but in addition can also in various ways into
Row is implemented.
Claims (4)
1. a kind of fuel supply system, including：
Storage cup is located in fuel tank；And
Jet pump units are located in the storage cup, for the fuel in the fuel tank to be picked up in the storage cup,
Wherein,
The jet pump units include being located at jet pump main body on the bottom of the storage cup, in the bottom of the storage cup
The peripheral portion of the opening portion of opening and the open and close valve for being opened and closed the opening portion,
The jet pump main body have form the pump case of chamber flowed into from the opening portion for fuel, arranging in the chamber and
It is connected and with the spray of the nozzle for the nozzle for spraying the discharging jet for making the open and close valve valve opening and with the chamber
Go out the neck that the indoor fuel of the chamber is transplanted in the storage cup by stream,
It is formed with to make from the chamber direction in the connecting portion between the neck for the internal face for forming the chamber
The The fuel stream of the neck becomes the guide surface smoothly flowed.
2. fuel supply system according to claim 1, wherein,
The guide surface being formed on the internal face of the chamber is inclined surface.
3. fuel supply system according to claim 1 or 2, wherein,
In overlook observation in a state that the storage cup is arranged in the fuel tank, the center of the opening portion is in certainly
The position of the axis misalignment of the nozzle.
4. fuel supply system according to claim 3, wherein,
The neck is configured along the internal face of the storage cup,
The opening portion configuration is in the separated position of the internal face for being configured with the neck from the storage cup.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-234839 | 2016-12-02 | ||
| JP2016234839A JP2018091211A (en) | 2016-12-02 | 2016-12-02 | Fuel supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108150329A true CN108150329A (en) | 2018-06-12 |
Family
ID=62469256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711236511.3A Withdrawn CN108150329A (en) | 2016-12-02 | 2017-11-30 | Fuel supply system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2018091211A (en) |
| CN (1) | CN108150329A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114248864A (en) * | 2020-09-23 | 2022-03-29 | 本田技研工业株式会社 | Fuel pump unit cover and method of mounting the same |
-
2016
- 2016-12-02 JP JP2016234839A patent/JP2018091211A/en active Pending
-
2017
- 2017-11-30 CN CN201711236511.3A patent/CN108150329A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114248864A (en) * | 2020-09-23 | 2022-03-29 | 本田技研工业株式会社 | Fuel pump unit cover and method of mounting the same |
| CN114248864B (en) * | 2020-09-23 | 2023-09-19 | 本田技研工业株式会社 | Fuel pump unit cover and method of installing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018091211A (en) | 2018-06-14 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180612 |
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| WW01 | Invention patent application withdrawn after publication |