CN106368866A - Fluid pump - Google Patents
Fluid pump Download PDFInfo
- Publication number
- CN106368866A CN106368866A CN201610567253.6A CN201610567253A CN106368866A CN 106368866 A CN106368866 A CN 106368866A CN 201610567253 A CN201610567253 A CN 201610567253A CN 106368866 A CN106368866 A CN 106368866A
- Authority
- CN
- China
- Prior art keywords
- area
- access panel
- flow channel
- entrance
- fluid
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
-
- 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
-
- 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
- F02M37/0041—Means for damping pressure pulsations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0693—Details or arrangements of the wiring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/528—Casings; Connections of working fluid for axial pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D5/00—Pumps with circumferential or transverse flow
- F04D5/002—Regenerative pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D5/00—Pumps with circumferential or transverse flow
- F04D5/002—Regenerative pumps
- F04D5/007—Details of the inlet or outlet
Abstract
A fluid pump includes an inlet; an outlet; a motor; and an impeller rotated by the motor about an axis, the impeller being positioned axially between an inlet plate and an outlet plate. The inlet plate includes a channel that receives fluid from the inlet, the channel being defined by an inner wall and an outer wall. The channel has a first region extending over an angle of at least 150 degree and a second region extending from the first region over an angle of 61.8 degree to 71.8 degree. The inner wall has a first radius centered about the axis which is constant over the first region and the second region. The outer wall has a second radius centered about the axis which is constant over the first region and also has a third radius not centered about the axis which is constant over the second region.
Description
Technical field
The present invention relates to fluid pump；It particularly relates to petrolift；Even systems carry motor
Petrolift, motor makes the wheel rotation being axially located between access panel and exit plate；Also more specifically, it is related to use
In the access panel flow channel of access panel, it makes to draw due to the structural vibration of the fluid hammer induction of access panel flow channel end
The noise rising is minimized.
Background technology
Fluid pump, is more particularly the petrolift for pumping fuel, such as petrolift is from the combustion of motor vehicles
Fuel is pumped into the internal combustion engine of motor vehicles by hopper.The United States Patent (USP) 6,824,361 authorizing yu et al. shows a kind of typical case
Electric fuel pump, it includes the impeller with multiple blades, and impeller is axially located between static access panel and exit plate.
Access panel includes entrance, and entrance allows fuel incoming fuel pump, so, the surface of entrance and the access panel being formed at towards impeller
Interior access road fluidly connects.The shape of access road is curved, and so, entrance leads to the first end of access road, and
When impeller is by the motor rotation of petrolift, fuel flows to the second end from the first end of access road.Reach access road the
The fuel at two ends is pushed over the space between all blades of impeller, and is pushed into and is formed at towards in the surface of the access panel of impeller
In exit passageway.One end of exit passageway includes exit passageway, and this exit passageway extends axially through exit plate.Therefore,
Fuel through being pressurizeed by impeller flows to the outlet of petrolift by exit passageway and through motor.The motion of all blades of impeller is made
Become fluid pressure fluctuations, and fluid pressure fluctuations cause entrance panel vibration, the Vibration propagation of access panel through petrolift its
Remaining structure.Additionally, when fuel reaches the end of access road, fluid hammer effect can be produced, thus, leads to make one disagreeable
High frequency noise.Although not authorizing the United States Patent (USP) 6 of yu et al., show in 824,361, it is known that can be in access road
End reduce access road depth so that access road can first distance on first constant ratio reduce depth,
Then, second distance is gradually reduced with the second constant ratio, then, the first ratio is more than the second ratio.
We need a kind of petrolift that as mentioned above one or more shortcomings are at utmost reduced or eliminated.
Content of the invention
In brief, fluid pump includes directing fluid into the entrance in fluid pump；Going out of fluid is discharged from fluid pump
Mouthful；Motor in fluid pump；And the pump members being rotated about axis are enclosed by motor, thus, by motor
Make pump members rotate fluid can be pumped into outlet from entrance, described pump members be disposed axially in static access panel and
Between static exit plate.Access panel includes access panel flow channel, and this flow channel is located at the access panel towards pump members
Entrance plate surface in so that access panel flow channel receives the fluid from entrance, access panel flow channel is by inwall and outer
Wall limits.Access panel flow channel has first area and second area, and first area extends at least 150 ° of angle,
And second area is extended from first area with 61.8 ° to 71.8 ° of angle.Inwall has
The first constant radius, the first radius centers with regard to axis.It is the second constant radius on the first region that outer wall has, the
Two radiuses center with regard to axis.It is the 3rd constant radius on the second region that outer wall also has, and the 3rd radius is not around axle
Line centers.The structure of second area arranges that making the fluid of access road end hammer (hitting) effect into shape is minimized, and also makes
The entrance panel vibration of run duration is minimized, and therefore, noise produced by the vibration of access panel is also minimized.
Brief description
Now with reference to accompanying drawing, further describe the present invention, in accompanying drawing:
Fig. 1 is the axonometric drawing of the decomposition of the fluid pump according to the present invention；
Fig. 2 is the axial sectional view of the fluid pump according to the present invention；
Fig. 3 is the axonometric drawing of the decomposition of a part for the fluid pump according to the present invention；
Fig. 4 is the axonometric drawing of the motor frame of the fluid pump according to the present invention；
Fig. 5 is existing to be differently directed the axonometric drawing of Fig. 4 motor frame of display；
Fig. 6 is the axial view of the access panel according to petrolift of the present invention；
Fig. 7 is the sectional view of the expansion of the access panel being intercepted by the cutting line 7-7 of Fig. 6；
Fig. 8 is the axial sectional view of the access panel being intercepted by the cutting line 8-8 of Fig. 6；
Fig. 9 is analogous to the sectional view of the expansion of Fig. 7, the structure arrangement that display substitutes.
Specific embodiment
Now with reference to Fig. 1 and 2, they are axonometric chart and the axial sectional view of the decomposition of fluid pump respectively, and fluid pump illustrates
It is the petrolift 10 for pump liquid fuel, for example, gasoline or diesel oil are pumped into internal combustion engine (not from fuel tank (not shown)
Illustrate).Although fluid pump is shown as petrolift 10, it will be understood that the present invention is not limited to petrolift, the present invention also can fit
Fluid pump for the outer fluid for pumping fuel.Petrolift 10 generally includes pump portion 12 positioned at end, neighbouring
In motor portion 14 and the exit portion 16 of pump portion 12, exit portion 16 is relative with pump portion 12 in petrolift 10
An end portion is adjacent to motor portion 14.The shell 18 of petrolift 10 is by pump portion 12, motor portion 14 and exit portion
16 keep together.Fuel incoming fuel pump 10 at pump portion 12, and it is pumped through motor portion 14 to export department
Divide 16, exit petrolift 10 in export department's office fuel, wherein motor portion 14 makes a part of fuel rotate, and this will below
In be more fully described.
Motor portion 14 includes the motor 20 being arranged in shell 18.Motor 20 includes from wherein extending to pumping section
Divide the axle 22 in 12.When electric current is applied on motor 20, axle 22 rotates around axis 24.Motor 20 will be hereinafter more detailed
Carefully describe.
With continued reference to Fig. 1 and 2, pump portion 12 includes access panel 26, the pump members being illustrated as impeller 28 and exit plate
30.Access panel 26 is arranged on the end away from motor portion 14 of pump portion 12, and exit plate 30 is arranged on pump portion 12
Close motor portion 14 end.Access panel 26 and exit plate 30 are fixing both relative to shell 18, with prevent with respect to
Relative motion between shell 18, access panel 26 and exit plate 30.Exit plate 30 is in exit plate 30 in the face of access panel 26
Spacer ring 32 is formed on that side.Impeller 28 be axially arranged between access panel 26 and exit plate 30 so that impeller 28 radially
Surrounded by spacer ring 32.Impeller 28 is fixed on axle 22 so that impeller 28 is rotated with axle 22 with man-to-man relation.Spacer ring 32
Size on axis 24 direction somewhat thicker than the size of impeller 28, i.e. spacer ring 32 along axis 24 direction size be more than leaf
Wheel 28 is along the size in axis 24 direction.So, access panel 26, exit plate 30 and spacer ring 32 are fixed in shell 18, for example logical
Cross to be fixed near the end of exit plate 30 crimping shell 18.The axial force that crimping process is formed will be held by spacer ring 32
Carry, thus prevent impeller 28 to be tightly clamped between access panel 26 and exit plate 30, this will stop impeller 28 freely
Rotate.The size of spacer ring 32 also has the interior diameter more than impeller 28 overall diameter, with allow impeller 28 in spacer ring 32 from
Rotated and be axially moveable between access panel 26 and exit plate 30 by ground.Although spacer ring 32 is shown as doing with exit plate 30
Become one, it will be understood that spacer ring 32 alternately makes separate part, it is trapped in exit plate 30 He vertically
Between access panel 26.
Access panel 26 be generally shaped like cylinder, and include entrance 34, this entrance 34 along with axis 34 identical direction
Extend through access panel 26.Entrance 34 is the path introducing the fuel into petrolift 10.It is logical that access panel 26 also includes access panel flowing
Road 36, this access panel flow channel is formed in entrance plate surface 26a towards impeller 28 of access panel 26.Access panel flowing is logical
Road 36 is in fluid communication with entrance 34.Access panel 26 and access panel flow channel 36 will be described in greater detail below.
Exit plate 30 be generally shaped like cylinder, and include the exit passageway 40 of exit plate, this exit passageway along with
Axis 24 identical direction extends through exit plate 30.The exit passageway 40 of exit plate is fluidly connected with exit portion 16, this
Will be described in more detail below.Exit plate 30 also includes exit plate flow channel 42, and this exit plate flow channel is formed at
In the surface towards impeller 28 of exit plate 30.Exit plate flow channel 42 is fluidly connected with the exit passageway 40 of exit plate.
Exit plate 30 also includes the outlet plate hole extending through exit plate 30, and hereinafter it is referred to as lower bearing 44.Axle 22 is with close-fitting
Conjunction relation extends through lower bearing 44 so that axle 22 can be freely rotatable in lower bearing 44, so can substantially hinder
Only radial motion in lower bearing 44 for the axle 22.In this way, the close pump portion of lower bearing 44 radially support shaft 22
12 lower end 46.
Impeller 28 includes multiple blades 48 with annular array arrangement, and these blade radial ground surround axis 24 and with regard to axle
Line 24 centers, and so, blade 48 is aligned with access panel flow channel 36 and exit plate flow channel 42.Each blade 48 is by blade
Chamber 49 is spaced apart from each other, and blade chamber 49 passes through impeller 28 along the general direction of axis 24.It is only for example impeller 28
Can be manufactured by injection molding process process, during this injection molding process, the preceding feature of impeller 28 is integratedly
It is molded to the plastics of single part.
Exit portion 16 includes end cap 50, and end cap 50 has for the outlet 52 from petrolift 10 discharge fuel.It is only to lift
For example, outlet 52 may be connected to conduit (not shown), to supply fuel to internal combustion engine (not shown).Outlet 52 and exit plate
30 exit plate exit passageway 40 fluidly connects, for receiving the fuel being pumped by pump portion 12.
With continued reference to Fig. 1 and 2 and referring additionally to Fig. 3 and 4, motor 20 is included with multiple multiple circumferentially-spaced motor
The rotor of winding 56 and rectifier part 58 or armature 54, motor frame 60, a pair of permanent magnet 62 and magnetic flux bearing part 64.
Each Magnet 62 is in the shape of one section of hollow circuit cylinder.Motor frame 60 includes the top 66, vertically near exit portion 16
The multiple circumferentially-spaced multiple lower limbs 68 extending towards pump portion 12 from top 66, and axially spaced with top 66 by lower limb 68
The bottom 70 opened.Top 66, lower limb 68 and bottom 70 are preferably formed by single part plastics, are only for example, by note
Mould molding process to be integrally formed.
The top 66 of motor frame 60 includes the first electric terminal 72 and the second electric terminal 74, and they prolong from top 66
Stretch and pass through end cap 50 to project.First electric terminal 72 and the second electric terminal 74 are arranged attached to power supply (not shown), make
Obtain the first electric terminal 72 and the second electric terminal 74 opposite polarity.First electric terminal 72 and the second electric terminal 74 can be arranged
In the preformed opening in top 66, or, when motor frame 60 passes through the formation of injection molding process process, the
One electric terminal 72 and the second electric terminal 74 can carry out insertion molding with top 66.First electric terminal 72 and the first carbon brush 76
Electrically connect, and the second electric terminal 74 is electrically connected with the second carbon brush 78.First carbon brush 76 is arranged on by top 66 shape
Become the first carbon brush keeper 80 in, and by with the first brush holder spring 82 that end cap 50 is grounded be pushed to whole with armature 54
Stream device part 58 contacts.Second carbon brush 78 is arranged in the second carbon brush keeper 84 being formed by top 66, and by with end
Second brush holder spring 86 of cap 50 ground connection is pushed to and is contacted with the rectifier part 58 of armature 54.First carbon brush 76 and second
Carbon brush 78 passes through rectifier part 58 by electric power delivery to motor winding 56, thus makes armature 54 and axle 22 around 24 turns of axis
Dynamic.
The top 66 of motor frame 60 is formed therein that upper bearing 88, this upper bearing radially support near go out
Oral area divides the upper end 90 of 16 axle 22.Axle 22 can be freely rotatable in upper bearing 88, so substantially prevent axle 22
Radial motion in upper bearing 88.
Lower limb 68 is circumferentially equidistantly spaced preferably around top 66 and bottom 70, and limits electronic between all lower limbs 68
Machine frame opening 92.Motor frame opening 92 extends to bottom 70 from top 66 vertically.One Magnet 62 is arranged on each
In motor frame opening 92.After motor frame 60 is formed, Magnet 62 can be inserted in corresponding motor frame and open
In mouth 92.Alternatively, when motor frame 60 is formed by injection molding process process, Magnet 62 can be entered with motor frame 60
Row insertion molding.So, Magnet 62 and lower limb 68 radially surround armature 54.While it have been described that two lower limbs 68 and two Magnet
62, it will be understood that lower limb 68 and the Magnet 62 of other quantity also can be used.
The shape of bottom 70 can be annular, and so that each lower limb 68 is connected to each other.Bottom 70 includes bottom notch 94, bottom
Depression extends axially in bottom from the end deviating from top 66 of bottom 70.Bottom notch 94 is coaxial with upper bearing 88 simultaneously
Exit plate 30 is tightly received in it, is so essentially prevented radial motion in bottom notch 94 for the exit plate 30.By
Coaxial with upper bearing 88 in bottom notch 94, so keeping same between lower bearing 44 and upper bearing 88 by bottom 70
Axle relation.Annular shoulder 96 towards top 66 is also formed on bottom 70.Annular shoulder 96 substantially can be perpendicular to axis 24.
Magnetic flux bearing part 64 is made up of ferrimagnet, and it can be in the form of cylindrical tube.Magnetic flux bearing part 64 is tightly
Radially surround lower limb 68 and the Magnet 62 of motor frame 60.It is only for example, magnetic flux bearing part 64 can be by by rolling technology
The ferrimagnet piece of roll forming is made.The end of magnetic flux bearing part 64 of bottom 70 and bottom near motor frame 60
Adjacent in 70 annular shoulder 96 axial direction, and the end of magnetic flux bearing part 64 at top 66 near motor frame 60 and radial direction
The part that ground surrounds the end cap 50 at top 66 of motor frame 60 adjoins vertically.So, magnetic flux bearing part 64 is vertically
It is trapped between end cap 50 and the annular shoulder 96 of bottom 70.
Because motor frame 60 may be made in single-piece, it is only for example, manufactured by injection molding process process,
So, upper bearing 88 and bottom notch 94 can be manufactured with single tool, thus it is allowed to recessed to upper bearing 88 and bottom
The height falling into 94 relative position controls.Therefore, lower bearing 44 more easily can keep coaxial pass with upper bearing 88
System.Similarly, (it is only for example to lead to because the first carbon brush keeper 80 and the second carbon brush keeper 84 can be formed by top 66
Cross injection molding process), the first carbon brush keeper 80, the second carbon brush keeper 84 and upper bearing 88 can with single tool Lai
Formed, thus it is allowed to the height of relative position to the first carbon brush keeper 80, the second carbon brush keeper 84 and upper bearing 88
Control.Therefore, the first carbon brush keeper 80 and the second carbon brush keeper 84 can easily remain parallel to axis 24, for first
For carbon brush 76 and the second carbon brush 78, fully have a common boundary (interface) with the rectifier part 58 of armature 54, do so can be very heavy
Want.
Now with reference to Fig. 6-8, they are directed towards the axial view of access panel 26 of entrance plate surface 26a viewing respectively, lead to
Cross the sectional view of the expansion of Fig. 6 middle section line 7-7 intercepting, and the axial sectional view intercepting by Fig. 6 middle section line 8-8.Send out
A person of good sense has been found that can make the fluid in access panel flow channel 36 hammer the access panel that effect and fluid pressure fluctuations are minimized into shape
The geometry of flow channel 36, thus, is made the vibration of the access panel 26 that can be propagated by petrolift 10 be minimized, also can make
It is minimized by the noise that the vibration of the access panel 26 propagating through petrolift 10 causes.Access panel flow channel 36 will be following
Paragraph in be described in more detail.
As shown in Figure 6, the shape of access panel flow channel 36 is generally curved, and includes positioned at access panel flow channel
The entrance area 98 of 36 end, the exit region 100 being located at access panel flow channel 36 other end, and between inlet region
Zone line 102 between domain 98 and exit region 100.Access panel flow channel 36 is by inwall 104, outer wall 106 and diapire 108
Limit, described outer wall 106 is located radially at outside inwall 104, described diapire 108 connects inwall 104 and outer wall 106.
Entrance area 98 extends on about 30 ° of access panel flow channel 36.Entrance 34 extends axially through entrance
Access panel 26 at region 98；Therefore, fluid is incorporated in access panel flow channel 36 by entrance 34 at entrance area 98.
At least a portion of diapire 108 in entrance area 98 favours entrance plate surface 26a, and this is high-visible in the figure 7.Cause
This, the diapire 108 in entrance area 98 is easy to fuel and is flowed by access panel to lateral (horizontal) from extending axially through entrance 34
The change of the flow direction of passage 36.
Zone line 102 extends on most access panel flow channel 36, and as illustrated, extending at least 150 °,
Preferably extend about 215 °.Inwall 104 in zone line 102 is by radius r104Limit, wherein, inwall 104 intersects at access panel
Surface 26a is so that radius r104Zone line 102 keeps constant, and it is (i.e. right around axis 24 to center with regard to axis 24
In).As shown in figure 8, the shape of cross section of inwall 104 in zone line 102, can across the width of access panel flow channel 36
Curved.Similarly, the outer wall 106 in zone line 102 is by radius r106aLimit, wherein, outer wall 106 intersects at access panel table
Face 26a is so that radius r106aZone line 102 keeps constant, and centers with regard to axis 24, and make radius r106aGreatly
In radius r104.As shown in figure 8, the shape of cross section of outer wall 106 in zone line 102, traverse access panel flow channel 36
Width can be curved.Zone line 102 can be formed by zone line Part I 102a and zone line Part II 102b, with
Zone line Part I 102a is located between entrance area 98 and zone line Part II 102b.Zone line first
Part 102a is substantially the same in addition to their corresponding depth with zone line Part II 102b, and depth is diapire 108
Vertically with a distance from entrance plate surface 26a positioning.Specifically, the diapire 108 in zone line Part I 102a to
The axial distance of entrance plate surface 26a is more than the diapire 108 in middle region second part 102b to entrance plate surface 26a
Axial distance.Therefore, at zone line Part I 102a to the transition region of zone line Part II 102b, by diapire
108 define step 110.
Exit region 100 extends in 61.8 ° to 71.8 ° scopes of access panel flow channel 36, preferably about for
66.8°.Inwall 104 in exit region 100 is by radius r104Limit, wherein, inwall 104 intersects at entrance plate surface 26a, makes
Obtain radius r104Exit region 100 keeps constant, and centers with regard to axis 24.Therefore, inwall 104 is in zone line 102
With in exit region 100 by radius r104Limit.As shown in figure 8, the shape of cross section of inwall 104 traverses access panel flow channel
36 width (i.e. on the whole width of access panel flow channel 36) can be curved.Outer wall 106 in exit region 100 is by partly
Footpath r106bLimit, wherein, outer wall 106 intersects at entrance plate surface 26a so that radius r106bExit region 100 keep permanent
Fixed.However, radius r106bCenter with regard to the central point 112 misaligned with axis 24, therefore, radius r106bIt is not in relation to axis 24
Center.Radius r106bMore preferably less than radius r106a, central point 112 is preferably towards zone line 102 with towards exit region
Laterally off-axis 24 (i.e. as orientation downwards and to the right in Fig. 6) on 100 direction.So, outer wall 106 converges to outlet
Inwall 104 in region 100.It should be noted that terminate radius 113 can be at exit region 100 end away from zone line 102
Inwall 104 and outer wall 106 is connected, this end of described exit region 100 is and terminates going out of access panel flow channel 36 at portion
The end in mouth region domain 100, so, terminates radius 113 and is less than radius r106bAbout 15%, simultaneously still consider inwall 104 going out
Constant radius is had on mouth region domain 100, and still considers that outer wall 106 has constant radius on exit region 100, and still
Consider that outer wall 106 converges to inwall 104.As shown in figure 8, outer wall 106 shape of cross section traverses the width of access panel flow channel 36
Degree can be curved.The depth of access panel flow channel 36, i.e. diapire 108, from the axial distance of entrance plate surface 26a, preferably exists
Reduce in the total length of exit region 100.As shown in fig. 7, diapire 108 with constant ratio (rate, taper rate) near middle
The end of the end of the exit region 100 in region 102 to the exit region 100 away from zone line 102 little by little reduces, by
This, limit tapered (taper) part 114 of diapire.
Alternatively, as shown in figure 9, the tapered portion 114 of diapire may include the initial tapered portion near zone line 102
114a and last tapered portion 114b away from zone line 102, so, initial tapered portion 114a is with than last tapered portion
The big ratio of 114b is gradually reduced towards entrance plate surface 26a.However, initial tapered portion 114a and last tapered portion 114b
The total length making exit region 100 together is gradually reduced, the tapered portion 114 of the diapire shown in Fig. 7.It should be noted that
, initial tapered portion 114a and last tapered portion 114b are all gradually reduced with constant ratio.
In operation, entrance 34 is exposed to the fuel (not shown) volume treating to be pumped into such as internal combustion engine (not shown).
For rotary shaft 22 and impeller 28, apply a current to motor winding 56.When impeller 28 rotates, fuel is taken out by entrance 34
It is drawn onto in access panel flow channel 36.Fuel in access panel flow channel 36 flows through entrance area 98, zone line 102 and goes out
Mouth region domain 100.Blade chamber 49 allows fuel to flow to exit plate flow channel 42 from access panel flow channel 36, mainly from going out
Mouth region domain 100 is flowed out.Impeller 28 thereafter by exit plate exit passageway 40 and therefore pass through export 52 discharge fuel.Inventor
It has been found that limiting radius as r on zone line 102 and exit region 100104Inwall 104 together with zone line 102
The upper radius that limits is as r106aOuter wall and radius is limited on exit region 100 as r106bOuter wall will allow for effect will fire
Material is directed to outside access panel flow channel 36, as a result, the mutual work between the end of fuel and access panel flow channel 36
With being minimized, this interaction can tend to the vibration of access panel 26 causing to propagate through petrolift 10, and also can become
Hammer (hitting) effect in causing fluid into shape.Therefore, the vibration making access panel 26 is minimized, and thus, also makes by the vibration of access panel 26
The noise producing is minimized.
Although the present invention is described by means of its preferred embodiment, the present invention is not intended limited
System, on the contrary, the scope that illustrated in present invention appended claims only to be restricted to.
Claims (13)
1. a kind of fluid pump, comprising:
Direct fluid into the entrance in described fluid pump；
Discharge the outlet of fluid from described fluid pump；
Motor in described fluid pump；And
The pump members being rotated about axis are enclosed by described motor, so, so that pump members is rotated by described motor will
Fluid is pumped into described outlet from described entrance, and described pump members are disposed axially in static access panel and static outlet
Between plate；
Described access panel includes access panel flow channel, and described access panel flow channel is located at towards described in described pump members
In the entrance plate surface of access panel, so that described access panel flow channel receives the fluid from described entrance, described access panel
Flow channel is limited by inner and outer wall, wherein:
Described access panel flow channel has first area and second area, and described first area is prolonged at least 150 ° of angle
Stretch, and described second area extends from described first area in 61.8 ° to 71.8 ° of angle；
It is the first constant radius that described inwall has on described first area and described second area, and described first radius closes
Center in described axis；And
It is the second constant radius that described outer wall has on described first area, and the second radius centers with regard to described axis,
It is the 3rd constant radius that described outer wall also has on described second area, and the 3rd radius is not in relation to described axis and centers.
2. fluid pump as claimed in claim 1 is it is characterised in that the described second area of described access panel flow channel has
Near the first end of described first area and away from described first area and terminate the second end of described access panel flow channel.
3. fluid pump as claimed in claim 2 it is characterised in that described outer wall converge at described second end described interior
Wall.
4. fluid pump as claimed in claim 1 is it is characterised in that described 3rd radius is less than described second radius.
5. fluid pump as claimed in claim 1 it is characterised in that
Described access panel flow channel is limited by diapire further, and described inwall is connected to described outer wall by described diapire；And
Described diapire is gradually reduced on entirely described second area, thus, changes described access panel stream in described second area
The depth of dynamic passage.
6. fluid pump as claimed in claim 5 it is characterised in that described diapire on entirely described second area with constant ratio
Rate is gradually reduced.
7. fluid pump as claimed in claim 6 it is characterised in that described diapire on entirely described second area with described perseverance
Fixed-ratio tapers into described entrance plate surface.
8. fluid pump as claimed in claim 5 it is characterised in that
Described diapire has the initial tapered portion in described second area, and so, initial tapered portion is near described
One region；
Described diapire has the last tapered portion in described second area, and so, described initial tapered portion is between institute
State between last tapered portion and described first area；
Described initial tapered portion is gradually reduced with the first constant ratio to described last tapered portion from described first area；With
And
Described last tapered portion is gradually reduced from described initial tapered portion with the second constant ratio.
9. fluid pump as claimed in claim 8 is it is characterised in that described first constant ratio is more than the described second constant ratio
Rate.
10. fluid pump as claimed in claim 9 is it is characterised in that described last tapered portion is from described initial tapered portion
It is gradually reduced to described entrance plate surface.
11. fluid pumps as claimed in claim 1 it is characterised in that described 3rd radius centers with regard to central point, described in
Heart point is offset laterally from towards described first area from described axis.
12. fluid pumps as claimed in claim 11 are it is characterised in that described central point is in addition to towards described first area
Also towards described second area from described axis runout.
13. fluid pumps as claimed in claim 1 it is characterised in that
Described access panel flow channel has the entrance area of the end positioned at described access panel flow channel so that described
One region is between described entrance area and described second area, and so that described entrance is led in described entrance area；And
Described second area terminates described access panel flow channel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/803,394 | 2015-07-20 | ||
| US14/803,394 US20170023022A1 (en) | 2015-07-20 | 2015-07-20 | Fluid pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106368866A true CN106368866A (en) | 2017-02-01 |
Family
ID=57837038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610567253.6A Pending CN106368866A (en) | 2015-07-20 | 2016-07-19 | Fluid pump |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20170023022A1 (en) |
| CN (1) | CN106368866A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10432222B2 (en) * | 2015-05-19 | 2019-10-01 | Samsung Electronics Co., Ltd. | Transmitting apparatus and mapping method thereof |
| US11817758B2 (en) | 2020-09-18 | 2023-11-14 | Delphi Technologies Ip Limited | Fluid pump and brush spring retainer thereof |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5273394A (en) * | 1992-09-24 | 1993-12-28 | General Motors Corporation | Turbine pump |
| US5401147A (en) * | 1993-09-07 | 1995-03-28 | Ford Motor Company | Automotive fuel pump with convergent flow channel |
| DE4336090C2 (en) * | 1993-10-22 | 2001-10-04 | Bosch Gmbh Robert | Unit for delivering fuel from a reservoir to the internal combustion engine of a motor vehicle |
| DE4343078B4 (en) * | 1993-12-16 | 2007-09-13 | Robert Bosch Gmbh | Aggregate for conveying fuel from a storage tank to an internal combustion engine |
| DE4446537C2 (en) * | 1994-12-24 | 2002-11-07 | Bosch Gmbh Robert | liquid pump |
| US5551835A (en) * | 1995-12-01 | 1996-09-03 | Ford Motor Company | Automotive fuel pump housing |
| US5702229A (en) * | 1996-10-08 | 1997-12-30 | Walbro Corporation | Regenerative fuel pump |
| DE19643728A1 (en) * | 1996-10-23 | 1998-04-30 | Mannesmann Vdo Ag | Feed pump |
| US6068456A (en) * | 1998-02-17 | 2000-05-30 | Walbro Corporation | Tapered channel turbine fuel pump |
| US5921746A (en) * | 1998-10-14 | 1999-07-13 | Ford Motor Company | Fuel pump chamber with contamination control |
| JP3756337B2 (en) * | 1999-02-09 | 2006-03-15 | 愛三工業株式会社 | Fluid pump |
| JP3638818B2 (en) * | 1999-05-20 | 2005-04-13 | 愛三工業株式会社 | Wesco type pump |
| US6270310B1 (en) * | 1999-09-29 | 2001-08-07 | Ford Global Tech., Inc. | Fuel pump assembly |
| US6468027B2 (en) * | 2000-03-31 | 2002-10-22 | Denso Corporation | Fuel pump for internal combustion engine |
| US6669437B2 (en) * | 2001-10-04 | 2003-12-30 | Visteon Global Technologies, Inc. | Regenerative fuel pump with leakage prevent grooves |
| US6824361B2 (en) * | 2002-07-24 | 2004-11-30 | Visteon Global Technologies, Inc. | Automotive fuel pump impeller with staggered vanes |
| US6767181B2 (en) * | 2002-10-10 | 2004-07-27 | Visteon Global Technologies, Inc. | Fuel pump |
| JP2005016312A (en) * | 2003-06-23 | 2005-01-20 | Aisan Ind Co Ltd | Fuel pump |
| KR100838910B1 (en) * | 2005-11-08 | 2008-06-16 | 가부시키가이샤 덴소 | Impeller and fluid pump having the same |
| US9562502B2 (en) * | 2014-10-06 | 2017-02-07 | Hamilton Sundstrand Corporation | Impeller for engine-mounted boost stage fuel pump |
-
2015
- 2015-07-20 US US14/803,394 patent/US20170023022A1/en not_active Abandoned
-
2016
- 2016-07-19 CN CN201610567253.6A patent/CN106368866A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20170023022A1 (en) | 2017-01-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170201 |
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| WD01 | Invention patent application deemed withdrawn after publication |