CN103883519A - Vane pump - Google Patents
Vane pump Download PDFInfo
- Publication number
- CN103883519A CN103883519A CN201310698063.4A CN201310698063A CN103883519A CN 103883519 A CN103883519 A CN 103883519A CN 201310698063 A CN201310698063 A CN 201310698063A CN 103883519 A CN103883519 A CN 103883519A
- Authority
- CN
- China
- Prior art keywords
- intermediate plate
- suction port
- cap assembly
- shell
- vane pump
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
- F04C15/0023—Axial sealings for working fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2250/00—Geometry
- F04C2250/10—Geometry of the inlet or outlet
- F04C2250/101—Geometry of the inlet or outlet of the inlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/42—Conditions at the inlet of a pump or machine
Abstract
The invetion provides a vane pump. The vane pump includes a housing, a cam ring, a rotor, a plurality of vanes that forms a plurality of pump chambers, a side plate constituting a portion of an intake port, an intermediate plate axially adjacent to the housing and the side plate, and a cover member. A portion of a flow passage, through which a fluid flows, is constituted by a surface of the intermediate plate and at least one of the housing, the side plate, and the cover member, the surface of the intermediate plate being adjacent to the at least one of the housing, the side plate, and the cover member. A through-hole or a recessed portion is formed in the intermediate plate, and the through-hole or the recessed portion of the intermediate plate and the side plate constitute a portion of the intake port.
Description
The application advocates the preference of No. 2012-277656th, the Japanese patent application proposing on December 20th, 2012, and quotes the full content including specification, accompanying drawing, summary at this.
Technical field
The present invention relates to working fluid pressurize and supply with the vane pump of this working fluid.
Background technique
Vane pump is employed as oil pressure supply source from wet goods working fluid to oil pressure unit that supply with.For example, for vane pump, known have as the speed changer to vehicle, power steering gear supply with the oil pump of compressed oil and be equipped on the structure of vehicle.In such vane pump, the rotary driving force of motor etc. is inputed to rotor and carries out pump action.Therefore, due to the travelling state of vehicle, and become the rising along with the rotating speed of motor, the state that the rotating speed of rotor also improves.So, exist a large amount of oil to be inhaled into pump chamber from suction port, thereby the oil pressure in suction port reduces and produces the situation of cavitation erosion (cavitation) at opening portion, the pump chamber of suction port.
Once cavitate, may produce vibration, noise and erosion (erosion) etc.Therefore, for example, in Japanese kokai publication hei 06-280754 communique, disclose by suitably setting suction port and avoided centrifugal oil pressure in the pump chamber structure to suction port adverse current with respect to the radial width of the opening portion of pump chamber.In addition, for example, in TOHKEMY 2006-226106 communique, disclose a kind of oil pressure at exhaust port and made a part for compressed oil return to the structure of suction port becoming more than certain value.By above-mentioned structure, prevent that the oil pressure of suction port from becoming too low oil pressure, suppress the generation of cavitation erosion.
But, with regard to vane pump, be accompanied by the variation etc. of oil pressure unit and require the flow (pressure) of working fluid to increase, and need to reduce vibration and noise in order to improve quietness.Summary of the invention
One of object of the present invention is to provide a kind of can utilize the vane pump that suppresses the generation of cavitation erosion from the past different structures.
Structural being characterised in that of the vane pump of a mode of the present invention possesses: shell; Cam ring, this cam ring is located at the inside of described shell, and has camming surface at inner peripheral surface; Rotor, this rotor is located at the inner circumferential side of described cam ring in revolvable mode, and has the multiple accommodating grooves that extend from outer circumferential face to radially inner side; Multiple blades, described multiple blades are accommodated in respectively described multiple accommodating groove in the mode that can slide, and by the space between described camming surface and the outer circumferential face of described rotor is formed to multiple pump chambers along circumferential division; Side plate, this side plate in the axial direction with described cam ring and described rotor adjacency, and form the part of suction port, this suction port is can suck to described pump chamber the mode opening of working fluid; Intermediate plate, this intermediate plate in the axial direction with described shell and described side plate adjacency; And cap assembly, between this cap assembly and described shell, be folded with described intermediate plate, and this cap assembly is fixed on the axial end of described shell, described intermediate plate by with described shell, described side plate and described cap assembly in the face of at least one adjacency form the part of the circulation flow path that makes described working fluid circulation, and described intermediate plate is formed with through hole or the recess of a part that forms described suction port together with described side plate.
Accompanying drawing explanation
Fig. 1 is the sectional view of the axle orthogonal direction of the vane pump in mode of execution.
Fig. 2 is the II-II sectional view of a part of Fig. 1.
Fig. 3 illustrates the back side panel of end on observation and the figure of intermediate plate.
Embodiment
Can understand above-mentioned and more feature and advantage of the present invention according to the detailed description of embodiment being carried out referring to accompanying drawing, in the accompanying drawings, identical parts be marked to identical reference character.
With reference to accompanying drawing, the vane pump 1 of mode of execution is described.In addition, in the present embodiment, exemplified with following structure, that is: working fluid is oil, and vane pump 1 is applied as the supply source of the oil pressure using in the clutch for clutch control of speed changer of vehicle.This vane pump 1, is input into live axle 90 such as the rotary driving force of motor of vehicle etc. and works, and sprays the oil of the flow corresponding with the rotating speed of motor.
In addition, in order to be controlled to the required regulation flow of oil pressure unit to the proportional discharge flow rate of rotating speed of live axle 90, vane pump 1 can be the structure that is provided with not shown flow control valve.In addition, in the present embodiment, the transmission side in vane pump 1 (right side of Fig. 1) is made as to front side, the side contrary with speed changer (left side of Fig. 1) in vane pump 1 is made as to rear side.
As shown in Figure 1, vane pump 1 possesses shell 10, cam ring 20, rotor 30, multiple blade 40, front side plate 50, back side panel 60, intermediate plate 70 and cap assembly 80 and forms.Shell 10 has the container 11 of tubular, and at installation end face 12 openings of rear side.In addition, at this installation end face 12, be formed with groove 12a in the phase place different from Fig. 1.The groove 12a of this shell 10 and with the face of intermediate plate 70 that end face 12 adjacency are installed, form a part of oily circulation flow path Ts.
In addition, shell 10 supports live axle 90 for rotating by bearing 13.This live axle 90 is the spindle units that are transfused to rotary driving force by motor by belt.In addition, shell 10 is formed with the first suction oil circuit Ti1, and this first sucks oil circuit Ti1 and be made up of tubulose, and the oil that makes to be directed into from outside shell 10 is circulated to the inside of shell 10.This first suction oil circuit Ti1 is at the inner peripheral surface opening of container 11.
The global shape of cam ring 20 is formed as circular, is located at the inside (container 11) of shell 10.The state that cam ring 20 is clamped by front side plate 50 and back side panel 60 with the both sides from axial is accommodated in the container 11 of shell 10.This cam ring 20 is the relative rotation with respect to shell 10 by not shown pin restriction.As shown in Figure 2, the camming surface 21 forming at the inner peripheral surface of the cam ring 20 substantially elliptical shape that to be formed with by the cycle be 180 degree.
And, in shell 10, the first position that sucks oil circuit Ti1 institute opening, between the inner peripheral surface of container 11 and cam ring 20, be provided with gap.This gap is the circulation flow path that can make through the circumferential circulation of the outer circumferential side at cam ring 20 in oil edge of the first suction oil circuit Ti1, and forms the second suction oil circuit Ti2 in vane pump 1.That is to say, second sucks oil circuit Ti2 is made up of the inner peripheral surface of the container 11 of shell 10 and the outer circumferential face of cam ring 20.
In more detail, each pump chamber Cp was upwards divided by the anterior end surface of the rear side end face of the front side plate 50 to arrange from the mode of axial sandwich rotor 30, back side panel 60 in week.Therefore, each pump chamber Cp is configured to, and is accompanied by the rotation of rotor 30, and the volume of each pump chamber expands or shrinks according to the variation of the distance between camming surface 21 and the outer circumferential face of rotor 30.In the pump action of vane pump 1, each pump chamber Cp repeatedly carries out volume increase and sucks oily compression section, volume that oily inhalation process, compression suck and dwindle and discharge oily discharge operation.
As shown in Figure 1, front side plate 50 is configured to the front side adjacency with cam ring 20, and by sealed member, the bottom of the container 11 in shell 10 is fixed.Be formed with a pair of concavity groove 51 at the rear side end face of front side plate 50, this pair of concavity groove 51 extends to radial outside from the position corresponding with the angular range of residing two positions of each pump chamber Cp of inhalation process.
The a pair of concavity groove 51 of front side plate 50 with along with towards radial outside and well width increase mode form.The a pair of concavity groove 51 being made up of this structure together forms with the anterior end surface of cam ring 20 a pair of the first suction port Pi1 that also supplies oil supply to each pump chamber Cp opening of inhalation process.Described a pair of the first suction port Pi1 and second sucks oil circuit Ti2 and is communicated with and supplies oil supply.
The a pair of notch part 61 of the back side panel 60 being made up of this structure, together forms with the rear side end face of cam ring 20 a pair of the second suction port Pi2 that also supplies oil supply to each pump chamber Cp opening of inhalation process.Described a pair of the second suction port Pi2 is positioned at axial opposed side with respect to the first suction oil circuit Pi1 across pump chamber Cp, and is communicated with the second suction oil circuit Ti2 and confession oil supply.
In addition, back side panel 60 be formed with a pair of notch part 61 circumferentially between a pair of through hole 62 that connects vertically.A pair of through hole 62 is configured to corresponding with the angular range of residing two positions, place of each pump chamber Cp in multiple pump chamber Cp, that discharge operation respectively, and to each pump chamber Cp opening of discharging operation.Each pump chamber Cp that described a pair of through hole 62 forms from discharging operation discharges oily a pair of exhaust port Px.
As shown in Figure 1, intermediate plate 70 is configured to the rear side adjacency with shell 10 and back side panel 60, and is clamped between shell 10 and cap assembly 80.As shown in Figure 3, in the position corresponding with a pair of notch part 61 of back side panel 60 of this intermediate plate 70, be formed with respectively the through hole 71 roughly the same with the axle orthogonal cross-sections shape of notch part 61.
And, at intermediate plate 70 and a pair of exhaust port Px(through hole 62 back side panel 60) and corresponding position, be formed with respectively the tap hole 72 roughly the same with each through hole 62 shapes.Each tap hole 72 is communicated with corresponding each through hole 62, together forms exhaust port Px with this through hole 62.The oil of discharging from pump chamber Cp thus, can go out through backward cap assembly 80 effluents of tap hole 72 from through hole 62.
In addition, intermediate plate 70 is being guaranteed sealing with the position of the installation end face 12 of shell 10 and the front side end plane-plane contact of cap assembly 80.Thus, intermediate plate 70 as mark off to vane pump 1 import oily low voltage side (shell 10 sides), with the demarcation strip performance function that derives oily high pressure side (cap assembly 80 sides) from vane pump 1 to outside.
In addition, in intermediate plate 70, with a part for the face of installation end face 12 adjacency of shell 10, together form as described above a part of oily circulation flow path Ts with the groove 12a of this installation end face 12.Like this, the vane pump 1 of present embodiment, different from the structure that formed like that cap assembly and back side panel in the past, but adopted the mode that makes intermediate plate 70 form a part of circulation flow path Ts etc.
As shown in Figure 1, cap assembly 80 with and shell 10 between sandwich intermediate plate 70 mode be fixed on the axial end of shell 10, end face 12 be installed.Particularly, cap assembly 80 is located with respect to shell 10 by multiple pins 81, and is through the connecting members such as the bolt in the hole that is formed at intermediate plate 70 and fixes.Thus, the together opening portion of the container 11 in closure 10 of cap assembly 80 and intermediate plate 70.In addition, cap assembly 80 is by having the bearing portion of the cylindraceous inner peripheral surface concentric with live axle 90, by bearing 82 by the overhang bracket of live axle 90 for rotating.
In addition, at cap assembly 80, in the position corresponding with a pair of through hole 71 of intermediate plate 70, be formed with respectively the recess 83 towards rear side from anterior end surface.Described a pair of recess 83 is formed as, and the through hole 71 of the shape of axle orthogonal cross-sections and intermediate plate 70 is roughly the same shape, and is communicated with the notch part 61 of back side panel 60 by through hole 71.
Utilize this structure, the notch part 61 of the through hole 71 of intermediate plate 70 and the recess of cap assembly 80 83 and back side panel 60 together forms a part of the second suction port Pi2.In more detail, be communicated with the second suction oil circuit Ti2 and to a pair of second suction port Pi2 of the pump chamber Cp opening of inhalation process, formed by a pair of notch part 61 of back side panel 60, rear side end face, the through hole 71 of intermediate plate 70 and the recess 83 of cap assembly 80 of cam ring 20.Thus, make the volume expansion oil of the second suction port Pi2 can be in through hole 71 and recess 83 such amount that circulates.
In addition, in the position corresponding with a pair of tap hole 72 of intermediate plate 70 of cap assembly 80, be formed with respectively the drain passageway (not shown) being communicated with this tap hole 72.This drain passageway is the path of deriving high pressure oil at a pair of exhaust port Px to the outside of vane pump 1.In addition, at cap assembly 80, can be configured to, for example, between drain passageway and the second suction port Pi2, flow control valve is set.This flow control valve makes an oily part that is discharged to drain passageway reflux to suction side via bypass path, is constant basis by the oily flow control of sending to oil pressure unit.
Next, the action of the vane pump 1 being made up of said structure is described.If the live axle 90 of vane pump 1 is because motor rotates, rotor 30 is at the internal rotating of cam ring 20.Then, in the rotation due to rotor 30 and each pump chamber Cp(of inhalation process that volume expands 180 degree configurations of staggering) in, be inhaled into oil from the opening portion of a pair of the first suction port Pi1 and a pair of the second suction port Pi2.
Then, because rotor 30 rotates, volume dwindles and after by the compression stroke of sucked oil pressure contracting gradually, in the pump chamber Cp of the discharge operation of further dwindling at volume, the opening portion of a pair of exhaust port Px forming from the tap hole 72 of the through hole 62 by back side panel 60, intermediate plate 70 is discharged oil.So, derive compressed oil from vane pump 1 to outside speed changer via the drain passageway of cap assembly 80.
In oily suction process in above-mentioned pump action, first, oil never illustrated fuel tank imports vane pump 1, and oil flows into the second suction oil circuit Ti2 of the outer circumferential side of cam ring 20 from the first suction oil circuit Ti1.Then, oil be circulated to and be formed with a pair of first suction port Pi1(the second suction port Pi2 by the second suction oil circuit Ti2) each phase place.Then, oil diverges and is supplied to a pair of first suction port Pi1 of front side and a pair of second suction port Pi2 of rear side to the axial both sides of cam ring 20.
In addition, the oil that is supplied to the second suction port Pi2 also flows into and is filled to the through hole 71 of intermediate plate 70 and the recess 83 of cap assembly 80.Then, the oil of the oil mass corresponding with the rotating speed of rotor 30, is supplied to the pump chamber Cp of inhalation process from the opening portion of opposed in the axial direction each suction port Pi1, Pi2.
Now, in a pair of the second suction port Pi2, because through hole 71 and recess 83 are expanded the net sectional area that oil can circulate.Therefore, each suction port Pi1, Pi2, the oily maximum delivery volume that can once be supplied to as a whole the pump chamber Cp of inhalation process increases, thereby in the time of rotor 30 High Rotation Speed, can suppress the situation of shortage of oil.Like this, in the time supplying oil supply to pump chamber Cp, can prevent the excessive reduction of the oil pressure of each suction port Pi1, Pi2.
If according to above-mentioned vane pump 1, a pair of the second suction port Pi2 is made up of each notch part 61, each through hole 71 of intermediate plate 70 and each recess 83 of cap assembly 80 of back side panel 60.Thus, and compared with the situation that the face of the front side of intermediate plate 70 forms suction port by notch part 61, can increase the volume of each the second suction port Pi2.Thus, even if in the time of rotor 30 High Rotation Speed, also can suitably supply oil supply to the pump chamber Cp of inhalation process, therefore, can prevent that the excessive pressure in a pair of the second suction port Pi2 from reducing.Consequently, can suppress reliably because the action of vane pump 1 produces cavitation erosion.
In addition, intermediate plate 70 together forms with the groove 12a of the installation end face 12 of shell 10 part that makes the oily circulation flow path Ts circulating.Form circulation flow path Ts by utilizing so different parts (shell 10, intermediate plate 70) to guarantee sealing when, thereby can improve the design freedom of circulation flow path Ts.Thus, even if manufacture the circulation flow path Ts being formed by complicated shape on shell 10, also can realize the reduction of the manufacture cost of shell 10.
In addition, in the present embodiment, a pair of the second suction port Pi2, forms its part by the through hole 71 of intermediate plate 70 and the recess 83 of cap assembly 80.Thus, can in the scope oily circulation flow path that is formed at cap assembly 80 etc. not being impacted, form recess 83, increase the volume of a pair of the second suction port Pi2.Thus, can tackle in the speed up of rotary driving force that inputs to vane pump 1, even and if also can be suitably in the time of rotor 30 High Rotation Speed to pump chamber Cp for oil supply.Therefore, can suppress more reliably because the action of vane pump 1 produces cavitation erosion.
In the present embodiment, a pair of the second suction port Pi2, forms its part by the through hole 71 of intermediate plate 70 and the recess 83 of cap assembly 80.On the other hand, a pair of the second suction port Pi2 also can be formed by the anterior end surface of the through hole of intermediate plate 70 71 and cap assembly 80.Thus, can, according to the thickness of the sectional area of through hole 71 and intermediate plate 70, increase the volume of a pair of the second suction port Pi2.
In addition, in this structure, compared with illustrative structure in present embodiment, the increasing amount of the volume of the second suction port Pi2 reduces, but, owing to not forming recess 83 at cap assembly 80, thus can make processing cost correspondingly reduce, only by just can suppress simply the generation of cavitation erosion to the processing of intermediate plate 70.In addition, with regard to form through hole 71 this point at intermediate plate 70 with regard to, for example, can form other tap holes 72, pin-and-hole by piercing simultaneously, therefore, can similarly suppress manufacture cost with present embodiment.
In addition, a pair of the second suction port Pi2 can be formed by the recess more shallow than the thickness of intermediate plate 70.Thus, due to the face that a pair of the second suction port Pi2 is formed at the front side of intermediate plate 70, therefore, also can not exert an influence to cap assembly 80 sides even if form recess.Thus, intermediate plate 70 can maintain the sealing with respect to cap assembly 80, and can utilize recess to increase the net sectional area of the second suction port Pi2.
In addition, in said structure, owing to can suitably setting the shape of the recess of intermediate plate 70, therefore, by being formed as the shape corresponding with the feed path that supplies oil supply from the second suction oil circuit Ti2 to the second suction port Pi2, can adjust flowing of oil.Thus, can prevent that the excessive pressure in a pair of the second suction port Pi2 from reducing, consequently, can suppress the generation of cavitation erosion.
In the present embodiment, working fluid is made as to oil, and vane pump 1 is the oil pressure supply source for oil supply to oil pressure unit.On the other hand, as long as vane pump 1 can move to discharge by pump the working fluid of this vane pump of be directed in, also can apply the present invention to working fluid to be made as the vane pump of the liquid beyond oil.
In addition, in the present embodiment, the groove 12a of the installation end face 12 of intermediate plate 70 and shell 10 together forms a part of oily circulation flow path Ts.On the other hand, as long as adopting intermediate plate 70 and miscellaneous part together to form the vane pump of the mode of oily circulation flow path Ts, suction port, exhaust port, just can apply the present invention.Therefore, intermediate plate 70 can be for example together similarly forms oily circulation flow path, suction port etc. with the back side panel 60 of adjacency or the groove or the hole that are formed at the end face of cap assembly 80.
Claims (4)
1. a vane pump,
Possess:
Shell;
Cam ring, this cam ring is located at the inside of described shell, and has camming surface at inner peripheral surface;
Rotor, this rotor is located at the inner circumferential side of described cam ring in revolvable mode, and has the multiple accommodating grooves that extend from outer circumferential face to radially inner side;
Multiple blades, described multiple blades are accommodated in respectively described multiple accommodating groove in the mode that can slide, and by the space between described camming surface and the outer circumferential face of described rotor is formed to multiple pump chambers along circumferential division;
Side plate, this side plate in the axial direction with described cam ring and described rotor adjacency, and form the part of suction port, this suction port is can suck to described pump chamber the mode opening of working fluid;
Intermediate plate, this intermediate plate in the axial direction with described shell and described side plate adjacency; And
Cap assembly is folded with described intermediate plate between this cap assembly and described shell, and this cap assembly is fixed on the axial end of described shell,
It is characterized in that,
Described intermediate plate by with described shell, described side plate and described cap assembly in the face of at least one adjacency form the part of the circulation flow path that makes described working fluid circulation, and described intermediate plate is formed with through hole or the recess of a part that forms described suction port together with described side plate.
2. vane pump according to claim 1, is characterized in that,
Be communicated with and be formed at the recess of described cap assembly by the described through hole of described intermediate plate with this through hole, form a part for described suction port.
3. vane pump according to claim 1, is characterized in that,
By the described through hole of described intermediate plate and the end face of described cap assembly, form a part for described suction port.
4. vane pump according to claim 1, is characterized in that,
By forming than the described recess of the thin thickness of described intermediate plate, form a part for described suction port.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-277656 | 2012-12-20 | ||
| JP2012277656A JP2014122558A (en) | 2012-12-20 | 2012-12-20 | Vane pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103883519A true CN103883519A (en) | 2014-06-25 |
Family
ID=49911181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310698063.4A Pending CN103883519A (en) | 2012-12-20 | 2013-12-18 | Vane pump |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20140178239A1 (en) |
| EP (1) | EP2746583A1 (en) |
| JP (1) | JP2014122558A (en) |
| CN (1) | CN103883519A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107771249A (en) * | 2015-06-11 | 2018-03-06 | 明和工业株式会社 | Vane pump |
| CN108138768A (en) * | 2015-10-21 | 2018-06-08 | Ｋｙｂ株式会社 | Vane pump |
| CN110036203A (en) * | 2016-11-29 | 2019-07-19 | 盒马实业股份有限公司 | A kind of variable vane pump with higher suction performance |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112019005598T5 (en) | 2018-11-09 | 2021-07-22 | Kyb Corporation | Electric oil pump |
| US11333254B2 (en) * | 2018-12-07 | 2022-05-17 | Tescom Corporation | Control valves |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2538194A (en) * | 1944-05-25 | 1951-01-16 | Oilgear Co | Hydrodynamic machine |
| US4008002A (en) * | 1975-11-07 | 1977-02-15 | Sperry Rand Corporation | Vane pump with speed responsive check plate deflection |
| JP3632859B2 (en) | 1993-03-31 | 2005-03-23 | 日産自動車株式会社 | Vane pump |
| JP4026931B2 (en) * | 1998-06-10 | 2007-12-26 | 株式会社ショーワ | Vane pump |
| JP2004232465A (en) * | 2003-01-28 | 2004-08-19 | Hitachi Unisia Automotive Ltd | Vane pump and vane motor of bidirectional type |
| JP2006266106A (en) | 2005-03-22 | 2006-10-05 | Jtekt Corp | Oil pump |
-
2012
- 2012-12-20 JP JP2012277656A patent/JP2014122558A/en active Pending
-
2013
- 2013-12-13 US US14/105,570 patent/US20140178239A1/en not_active Abandoned
- 2013-12-16 EP EP13197348.9A patent/EP2746583A1/en not_active Withdrawn
- 2013-12-18 CN CN201310698063.4A patent/CN103883519A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107771249A (en) * | 2015-06-11 | 2018-03-06 | 明和工业株式会社 | Vane pump |
| CN108138768A (en) * | 2015-10-21 | 2018-06-08 | Ｋｙｂ株式会社 | Vane pump |
| CN110036203A (en) * | 2016-11-29 | 2019-07-19 | 盒马实业股份有限公司 | A kind of variable vane pump with higher suction performance |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014122558A (en) | 2014-07-03 |
| US20140178239A1 (en) | 2014-06-26 |
| EP2746583A1 (en) | 2014-06-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140625 |