CN104913181B - For engine displacement-variable oil pump and there is its engine pack - Google Patents
For engine displacement-variable oil pump and there is its engine pack Download PDFInfo
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- CN104913181B CN104913181B CN201510163129.9A CN201510163129A CN104913181B CN 104913181 B CN104913181 B CN 104913181B CN 201510163129 A CN201510163129 A CN 201510163129A CN 104913181 B CN104913181 B CN 104913181B
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- 238000007789 sealing Methods 0.000 claims abstract description 104
- 238000010276 construction Methods 0.000 claims abstract description 6
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- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 105
- 239000010705 motor oil Substances 0.000 description 9
- 230000006870 function Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000010354 integration Effects 0.000 description 5
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- 238000006073 displacement reaction Methods 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
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- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- 230000007774 longterm Effects 0.000 description 1
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Abstract
The invention discloses a kind of displacement-variable oil pump for engine and there is its engine pack, the displacement-variable oil pump includes the pump housing, and the pump housing is provided with seal mounting hole, inlet port and oil-out；Regulation ring, regulation ring are located in the pump housing and are swingably connected with the pump housing；Rotor, rotor are arranged on bent axle and in regulation ring, rotor and regulation ring eccentric setting；Multiple blades, multiple blades are along the circumferentially-spaced of rotor and are movably arranged on rotor；Sealing structure, sealing structure are located at so that the region between the pump housing and regulation ring is divided into oil sucting cavity and oil outlet chamber between the pump housing and regulation ring, and inlet port connects with oil sucting cavity, and oil-out connects with oil outlet chamber；Adjusting part, adjusting part are located between regulation ring and the pump housing to adjust eccentric throw.Displacement-variable oil pump according to embodiments of the present invention, it is simple in construction, Front oil seal cradling function is integrated with, parts are few, and arrangement is easy.
Description
Technical field
The present invention relates to field of engine lubrication technology, in particular to a kind of variable displacement machine for engine
Oil pump and the engine pack with the displacement-variable oil pump.
Background technology
Lubricating oil pump is the main component part of engine lubrication system, in the displacement-variable oil pump in correlation technique, is deposited
Too high in cost of parts, larger to engine integral arrangement pressure, manufacturing process difficulty is big, room for improvement be present.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.Therefore, the present invention carries
Go out a kind of displacement-variable oil pump for engine simple in construction, arrangement is easy and easy to manufacture.
It is another object of the present invention to propose a kind of engine pack with above-mentioned displacement-variable oil pump.
The described displacement-variable oil pump for engine includes according to a first aspect of the present invention：The pump housing, the pump housing
It is provided with seal mounting hole, inlet port and oil-out；Regulation ring, the regulation ring are located in the pump housing and can with the pump housing
Swingingly it is connected；Rotor, the rotor are adapted to mount on the bent axle and are radially positioned in the regulation ring, described turn
The sub and regulation ring eccentric setting；Multiple blades, the multiple blade is along the circumferentially-spaced of the rotor and movably sets
So that the space between the rotor and the regulation ring is divided into multiple working chambers on the rotor；Sealing structure, it is described
Sealing structure is located between the pump housing and the regulation ring so that the region between the pump housing and the regulation ring to be divided into
Oil sucting cavity and oil outlet chamber, the inlet port connect with the oil sucting cavity, and the oil-out connects with the oil outlet chamber；Regulation group
Part, the adjusting part are located between the regulation ring and the pump housing to adjust the bias of the regulation ring and the rotor
Away from.
Displacement-variable oil pump according to embodiments of the present invention, rotor is directly driven by the bent axle of engine, and pump housing collection
Simple in construction, integration degree is high into the function of the Front oil seal support of bent axle, parts are few.
According to one embodiment of present invention, on one in the inner surface of the outer peripheral face of the regulation ring and the pump housing
Another the unlimited groove being provided with the outer peripheral face of the regulation ring and the inner surface of the pump housing；The sealing structure
It is arranged in the groove, and is arranged at intervals including multiple sealing lips, multiple sealing lips, each sealing lip is elastic
Stop on another being against in the outer peripheral face of the regulation ring and the inner surface of the pump housing on ground.
According to one embodiment of present invention, the sealing structure includes：Seal shaft, the bottom wall of the seal shaft and groove
It is connected, thickness direction extension of the seal shaft along the regulation ring；Sealing gasket, the sealing gasket include sealing gasket bottom wall and more
Individual sealing gasket side wall, the multiple sealing gasket side wall are provided at circumferentially spaced on the sealing gasket bottom wall along the regulation ring,
One end of the sealing gasket side wall forms the sealing lip, and the other end of the sealing gasket side wall is flexibly only against the groove
Bottom wall on.
Alternatively, the sealing gasket is configured to U-shaped.
Alternatively, the sealing structure is polytetrafluoroethylene (PTFE) part.
According to one embodiment of present invention, guide frame, the guide frame are configured with the inner peripheral surface of the rotor
Guide groove or guiding rib including the thickness direction extension along the rotor.
According to one embodiment of present invention, the guide frame is multiple and being provided at circumferentially spaced along the rotor.
According to one embodiment of present invention, the displacement-variable oil pump for engine also includes：Back-up ring, it is described
Back-up ring is movably installed on the rotor, in the outer end of the radially described blade of the rotor and the regulation ring
Side face only supports, and the inner and back-up ring of the blade only supports.
According to one embodiment of present invention, the pump housing be provided with generator mounting hole, belt stress fixing hole and
It is at least one in compressor of air conditioner fixing hole.
According to one embodiment of present invention, the regulation ring is provided with the boss extended radially outward；The regulation group
Part includes：First spring, first spring be located at the side of the boss and be arranged to the boss to apply make it is described
The power that regulation ring is swung towards the direction that the eccentric throw reduces；Second spring, the second spring are located at the another of the boss
Side and the power for being arranged to the boss to apply the direction swing for making the regulation ring increase towards the eccentric throw.
According to one embodiment of present invention, the adjusting part also includes：Spring base, first spring are arranged on institute
State on spring base, the spring base is located at the side of the boss；The pump housing is provided with mounting groove, the boss and the tune
Section component is each provided in the mounting groove, and the inwall of the mounting groove is inwardly protruding to form stage portion, the stepped portions in
So that first spring stops applying to the boss between the boss and the spring base and suitable for spring base described in backstop
Add the power for making the regulation ring be swung towards the direction that the eccentric throw reduces.
According to one embodiment of present invention, the surface of the direction of the boss spring base is provided with guide finger, institute
Spring base is stated slidably to be set on the guide finger.
The engine pack of embodiment includes according to a second aspect of the present invention：Engine, the engine include bent axle；Before
Oil sealing, the Front oil seal are set on the bent axle；The displacement-variable oil pump for engine according to first aspect,
The rotor is arranged on the bent axle, and the Front oil seal is folded between the inwall of the seal mounting hole and the bent axle.
Engine pack according to embodiments of the present invention, it is simple in construction, integrated by setting above-mentioned displacement-variable oil pump
Change degree is high, and parts are few, and reduces unnecessary energy loss, reaches effects of energy saving and emission reduction, both reduced hydraulic power and
Mechanical output, significantly improve the efficiency of engine.
Brief description of the drawings
Fig. 1 is the structural representation of engine pack according to embodiments of the present invention；
Fig. 2 is the explosive view of the displacement-variable oil pump for engine according to embodiments of the present invention；
Fig. 3 is the front view of the pump housing of the displacement-variable oil pump for engine according to embodiments of the present invention；
Fig. 4 is according to embodiments of the present invention for the displacement-variable oil pump of engine and the scheme of installation of bent axle；
Fig. 5 be after the installation for the displacement-variable oil pump and bent axle of engine according to embodiments of the present invention
Bent axle and the schematic diagram of pump housing junction；
Fig. 6 is the amplification at the sealing structure of the displacement-variable oil pump for engine according to embodiments of the present invention
Figure；
Fig. 7 is the structural representation of the sealing structure of the displacement-variable oil pump for engine according to embodiments of the present invention
Figure；
Fig. 8 is the structural representation of the pump housing of the displacement-variable oil pump for engine according to embodiments of the present invention；
Fig. 9 is the displacement-variable oil pump for engine according to embodiments of the present invention during one-level regulation
Structural representation；
Figure 10 is the enlarged drawing at the adjusting part in Fig. 9；
Figure 11 is the displacement-variable oil pump for engine according to embodiments of the present invention during two-stage regulation
Structural representation；
Figure 12 is the enlarged drawing at the adjusting part in Figure 11；
Figure 13 is rotating speed-oil pressure curve map of the displacement-variable oil pump for engine according to embodiments of the present invention.
Reference：
Engine pack 1000, displacement-variable oil pump 100, the pump housing 1, seal mounting hole 11, inlet port 12, oil-out
13rd, generator mounting hole 14, belt stress fixing hole 15, compressor of air conditioner fixing hole 16, mounting groove 17, the roof of mounting groove
171st, the bottom wall 172 of mounting groove, stage portion 18, regulation ring 2, groove 21, the bottom wall 211 of groove 21, groove 21 side wall 212,
Boss 22, guide finger 221, rotor 3, guide frame 31, blade mounting groove 32, blade 4, sealing structure 5, seal shaft 51, sealing
Pad 52, sealing gasket bottom wall 521, groove 5211, sealing gasket side wall 522, sealing lip 5221, adjusting part 6, the first spring 61,
Two springs 62, spring base 63, bearing pin 71, back-up ring 72, oil sucting cavity 81, oil outlet chamber 82, pump cover 91, cold start-up valve 92, blanking cover 921,
Steel ball 922, cold start-up valve spring 923, dormant bolt 93, protecgulum 94, eccentric throw L, engine 200, bent axle 210, Front oil seal
300。
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of accompanying drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Engine pack 1000 according to embodiments of the present invention is described with reference first to Fig. 1-Figure 13.As shown in figure 1, according to this
The engine pack 1000 of inventive embodiments includes engine 200, Front oil seal 300 and the variable displacement machine for engine 200
Oil pump 100.As shown in figure 1, engine 200 has bent axle 210, Front oil seal 300 is set on bent axle 210.
Displacement-variable oil pump 100 is the main component part of the lubricating system of engine 200, as engine 200
The heart of lubricating system, its major function are that the machine oil of enough pressure and flow is provided for lubricating system, and oil pressure and flow are with hair
The rotating speed of motivation 200 must assure that in certain scope, to ensure each friction member (such as the base bearing of bent axle 210, connecting rod
Bearing, balance shaft bearing, chain tensioning device, turbo-charger bearing, camshaft bearing, VVT, hydraulic tappet and high-pressure oil pump
Cam etc.) sufficiently lubricated and do not damage the pressure part of correlation.
Below with reference to Fig. 1-Figure 13 descriptions displacement-variable oil pump for engine 200 according to embodiments of the present invention
100, displacement-variable oil pump 100 according to embodiments of the present invention includes the pump housing 1, regulation ring 2, rotor 3, multiple blades 4, sealing
Structure 5 and adjusting part 6.
It is understood that as shown in Fig. 2 displacement-variable oil pump 100 includes pump cover 91, pump cover 91 is arranged on the pump housing 1
On to limit installation cavity between the pump housing 1 and pump cover 91, wherein regulation ring 2, rotor 3, multiple blades 4, sealing structure 5 and adjust
Section component 6 is installed in installation cavity.
Regulation ring 2 is located in the pump housing 1, and regulation ring 2 is swingably connected with the pump housing 1, such as Fig. 4, Fig. 8, Fig. 9 and Figure 11
Shown, regulation ring 2 is swingably connected with the pump housing 1 by bearing pin 71, i.e., regulation ring 2 can be swung around the central axis of bearing pin 71.
Rotor 3 is adapted to mount on bent axle 210, and in radial directions, rotor 3 is located in regulation ring 2, and rotor 3 is with adjusting
The eccentric setting of ring 2 is saved, as shown in figures 9 and 11, the distance at the center of rotor 3 and the center of the inner peripheral surface of regulation ring 2 is rotor 3
With the eccentric throw L of regulation ring 2.
Multiple being provided at circumferentially spaced along rotor 3 of blade 4, and each blade 4 is movably arranged on rotor 3, so as to
Space between rotor 3 and regulation ring 2 can be divided into multiple working chambers by multiple blades 4, be rotated in rotor 3 with bent axle 210
When, with the movement of blade 4, the volume of working chamber changes.
As shown in Fig. 6, Fig. 7, Fig. 9 and Figure 11, set between the pump housing 1 and regulation ring 2 (specifically, the outer peripheral face of regulation ring 2)
Sealing structure 5 is equipped with, the region between the pump housing 1 and regulation ring 2 can be divided into oil sucting cavity 81 and oil outlet chamber by sealing structure 5
82.As shown in figure 3, the pump housing 1 is provided with inlet port 12 and oil-out 13, inlet port 12 connects with oil sucting cavity 81, oil-out 13 with
Oil outlet chamber 82 connects, and working chamber brings the machine oil for entering oil sucting cavity 81 from inlet port 12 into oil outlet chamber 82, and passes through oil-out 13
Outflow, such as flow out to the cylinder-body oil duct of engine 200.
Adjusting part 6 is located between regulation ring 2 and the pump housing 1 to adjust the eccentric throw L of regulation ring 2 and rotor 3.
By foregoing description, the displacement-variable oil pump 100 for engine 200 according to embodiments of the present invention,
Can be according to the change of oil duct pressure and the rotating speed of engine 200, by changing regulation ring 2 and the eccentric throw L of rotor 3 side
Formula changes the output pressure and discharge capacity of displacement-variable oil pump 100, so as to reduce unnecessary energy loss, reaches energy-saving and emission-reduction
Effect, reduce hydraulic power and mechanical output, significantly improve the efficiency of engine 200.
As shown in figure 3, being additionally provided with seal mounting hole 11 on the pump housing 1, seal mounting hole 11 is suitable to the bent axle with engine 200
210 Front oil seal 300 coordinates.Specifically, seal mounting hole 11 is suitable to installation Front oil seal 300 to be set in bent axle in the pump housing 1
Front oil seal 300 is folded between bent axle 210 and the inwall of seal mounting hole 11 when on 210 and play sealing function.
In other words, the pump housing 1 is integrated with the function of Front oil seal support so that the size of displacement-variable oil pump 100 it is small and
Integration degree is high, more conducively the demand of the compact designed of engine 200, makes the more easily cloth of displacement-variable oil pump 100
Put in the front end of bent axle 210, reduce amount of parts and save arrangement space.
Displacement-variable oil pump 100 according to embodiments of the present invention, rotor 3 are directly driven by the bent axle 210 of engine 200
Dynamic, and the pump housing 1 is integrated with the function of the Front oil seal support of bent axle 210, simple in construction, integration degree is high, parts are few.
Engine pack 1000 according to embodiments of the present invention, by setting above-mentioned displacement-variable oil pump 100, structure letter
Single, integration degree height, parts are few, and reduce unnecessary energy loss, reach effects of energy saving and emission reduction, both reduce hydraulic pressure
Power and mechanical output, significantly improve the efficiency of engine 200.
As shown in figure 4, it is necessary to by the pump housing 1 and pump cover when above-mentioned displacement-variable oil pump 100 is arranged on bent axle 210
91 are enclosed on bent axle 210, and the assembling for the ease of displacement-variable oil pump 100 and bent axle 210 is led, it is necessary to be set on rotor 3
To structure 31.
As shown in Figure 4 and Figure 5, guide frame 31 is arranged on the inner peripheral surface of rotor 3, and guide frame 31 can include edge and turn
The guide groove of thickness direction (i.e. the axial direction of the bent axle as illustrated in the drawing) extension of son 3 is oriented to rib, as shown in Figure 4 and Figure 5
In one specific embodiment, guide frame 31 is guide groove, and correspondingly, the corresponding position of bent axle 210 is to coordinate with guide groove
It is oriented to rib.
In some specific embodiments of the present invention, guide frame 31 (such as guide groove) can be multiple and multiple lead
Can being provided at circumferentially spaced along rotor 3 to structure 31.Thus, bent axle 210 and displacement-variable oil pump 100 are easier to align.
Specifically, the inner peripheral surface of rotor 3 is pentagon or six by setting above-mentioned guide frame 31 to be configured to cross section
Side shape, the cross section of the axle journal of bent axle 210 corresponding with rotor 3 can be structured as five prismatics or six prismatics.More specifically, as schemed
Shown in 4, the cross section of the axle journal of bent axle 210 corresponding with rotor 3 can be structured as regular hexagon, be set on the inner peripheral surface of rotor 3
There are six guide grooves.
Specifically, when displacement-variable oil pump 100 being inserted in into bent axle 210 along the direction of arrow in Fig. 4, rotor is easily adjusted
3 guide groove aligns with the regular hexagon of bent axle 210, and guidance quality is more preferable in push-on process, is so advantageous to protect bent axle 210
The lip of Front oil seal 300, make the lip during bent axle 210 is inserted in of Front oil seal 300 that the damage such as trimming not occur.
The displacement-variable oil pump 100 for engine 200 according to the present invention is described in detail referring to Fig. 1-Figure 13
Specific embodiment.
As described in Figure 2, displacement-variable oil pump 100 includes the pump housing 1, pump cover 91, protecgulum 94, regulation ring 2, rotor 3, multiple
Blade 4, sealing structure 5, adjusting part 6, back-up ring 72 and cold start-up valve 92.
The pump housing 1 is provided with inlet port 12 and oil-out 13, and pump cover 91 is fixed on the pump housing 1 by multiple dormant bolts 93,
And bent axle 210 passes through the pump housing 1 and pump cover 91, regulation ring 2 is swingably connected by bearing pin 71 with the pump housing 1, regulation ring 2 and the pump housing
Region between 1 is isolated into oil sucting cavity 81 and oil outlet chamber 82 by bearing pin 71 and sealing structure 5, and inlet port 12 connects with oil sucting cavity 81
Logical, oil-out 13 connects with oil outlet chamber 82.
Seal mounting hole 11 and generator mounting hole 14, belt stress fixing hole 15 and air-conditioning are additionally provided with the pump housing 1
At least one in compressor fixing hole 16, thus the pump housing 1 is integrated with the function of Front oil seal support, and is its of engine 200
Its parts provides the strong point, and degree of integration is higher, further reduces the amount of parts of engine pack 1000.
Protecgulum 94 is arranged on the front of the pump housing 1, and the pump housing 1 coordinates with protecgulum 94, and by sealing between the pump housing 1 and protecgulum 94
Pad is sealed so that protecgulum 94 plays dust-proof function, ensures the Timing Belt and variable displacement machine oil of engine 200
The normal work of pump 100.
Rotor 3 is fixed on bent axle 210, as shown in fig. 6, rotor 3 is provided with blade mounting groove 32, blade 4 is movably
Be located in blade mounting groove 32, back-up ring 72 is movably installed on rotor 3, in rotor 3 radially, the outer end of blade 4 with
The inner peripheral surface of regulation ring 2 is only supported, and the inner of blade 4 is only supported with back-up ring 72.
When rotor 3 rotates under the drive of bent axle 210, band movable vane piece 4 moves in blade mounting groove 32, makes blade 4
The inner peripheral surface of outer end and regulation ring 2 slidably contacts with and the inner of blade 4 is slidably contacted with back-up ring 72, with blade
4 movement can change the volume of work chamber, and be taken to by the machine oil of inlet port 12 into oil sucting cavity 81 by work chamber
Oil outlet chamber 82, and flow out to through oil-out 13 cylinder-body oil duct of engine 200.With the change of oil pressure, oil pressure drives regulation
Ring 2 is swung around bearing pin 71, eccentric throw L is changed, and so as to adjust the volume of oil sucting cavity 81 and oil outlet chamber 82, realizes oil-out
13 pressure and the change of flow.
When the hypertonia of oil-out 13, cold start-up valve 92 is opened, and too high pressure is along cold start-up valve as shown in Figure 8
Hole at 92 valve opening releases, and machine oil flows back to the oil sump of engine 200 from the hole, so as to avoid too high engine oil pressure from flowing through
Oil filter or oil cooler, influence the service life of these parts.As shown in Fig. 2 cold start-up valve 92 can include
Blanking cover 921, steel ball 922 and cold start-up valve spring 923, the annexation of each part of cold start-up valve 92 and effect are for this area
It is, it is known that no longer narration in detail herein for technical staff.
During in order to ensure that regulation ring 2 rotates, the isolating seal effect between oil sucting cavity 81 and oil outlet chamber 82, ad hoc meter sealing
Structure 5.The outer peripheral face and the pump housing 1 of regulation ring 2 are provided with one in the outer peripheral face of regulation ring 2 and the inner surface of the pump housing 1
Inner surface in another unlimited groove 21, that is to say, that groove 21 can be located on the outer peripheral face of regulation ring 2 and direction
The inner surface of the pump housing 1 opens wide, and groove 21 can also be located on the inner surface of the pump housing 1 and be opened wide towards the outer peripheral face of regulation ring 2.
Sealing structure 5 is arranged in groove 21, and sealing structure 5 includes multiple sealing lips 5221, multiple sealing lips 5221
It is arranged at intervals, each sealing lip 5221 is flexibly only against another in the outer peripheral face of regulation ring 2 and the inner surface of the pump housing 1
On, i.e., each sealing lip 5221 is flexibly only against on the surface relative with the bottom wall of groove 21 211.Thus, sealing structure 5
For line contact sealing non-face contact seal, i.e., sealing lip 5221 with it is another in the outer peripheral face of regulation ring 2 and the inner surface of the pump housing 1
The contact of one is linear contact lay, and non-face contact, contact wear is small and good airproof performance, this outer seal configuration 5 are elastic sealing structure,
The elastic packing of sealing lip 5221 is used, remains to keep preferable sealing after long-term work, is not in stuck problem, and not
Edge trimming problems occur, influence the normal work of displacement-variable oil pump 100 so as to avoid chip from entering in blade mounting groove 32
The problem of occur.
As a kind of optional embodiment, sealing structure 5 includes seal shaft 51 and sealing gasket 52.Seal shaft 51 and groove 21
Bottom wall 211 be connected, thickness direction (i.e. the axial direction of bent axle 210) of the seal shaft 51 along regulation ring 2 extends.Sealing gasket 52 includes close
Packing bottom wall 521 and multiple sealing gasket side walls 522, multiple sealing gasket side walls 522 are sealing along being provided at circumferentially spaced for regulation ring
On rebasing wall 521, and one end of sealing gasket side wall 522 forms sealing lip 5221, and the other end of sealing gasket side wall 522 flexibly stops
It is against on the bottom wall 211 of groove 21.That is, sealing gasket side wall 522 is flexibly folded in bottom wall 211 and the regulation of groove 21
On another in the outer peripheral face of ring 2 and the inner surface of the pump housing 1.
Sealing structure 5 according to embodiments of the present invention is described in detail referring to Fig. 6 and Fig. 7.
In embodiment as shown in Figure 6 and Figure 7, groove 21 is located on the outer peripheral face of regulation ring 2 and towards the interior table of the pump housing 1
Face is opened wide, and sealing gasket 52 is configured to U-shaped, i.e. sealing gasket 52 includes sealing gasket bottom wall 521 and is located at 521 liang of sealing gasket bottom wall respectively
Two sealing gasket side walls 522 of side.Sealing gasket bottom wall 521 is folded between the bottom wall 211 of groove 21 and seal shaft 51, sealing gasket
52 each sealing gasket side wall 522 is flexibly only against the interior table relative with groove 21 with the pump housing 1 of bottom wall 211 of groove 21
On face.Thus, the structure of sealing structure 5 is simple, and easy to manufacture and cost is low.
As shown in fig. 7, sealing gasket bottom wall 521 is provided with groove 5211, the connection of seal shaft 51 and the bottom wall 211 of groove 21
Part is clamped in groove 5211, and thus sealing gasket 52 assembles more convenient with the ground of seal shaft 51.
When displacement-variable oil pump 100 works, with the swing of regulation ring 2, the sealing lip 5221 of sealing gasket 52 is close to pump
The inner surface of body 1, as the change of thrust changes the shape of the lip of sealing lip 5221, ensure oil sucting cavity 81 and oil outlet chamber 82
Between sealing, oil sucting cavity 81 and oil outlet chamber 82, good sealing effect are sealed using the sealing structure 5 of said structure form.
Certainly, in other optional embodiments, groove 21 can also be arranged on the inner surface of the pump housing 1 and towards tune
The outer peripheral face of section ring 2 opens wide, and correspondingly, each sealing gasket side wall 522 of sealing gasket 52 is flexibly only against the bottom of groove 21
Between wall 211 and the outer peripheral face of regulation ring 2.
Advantageously, sealing gasket side wall 522 is close to the side wall 212 of groove 21, thus further strengthens sealing effectiveness.
Alternatively, sealing structure 5 is polytetrafluoroethylene (PTFE) part, i.e. sealing structure 5 is made up of polytetrafluoroethylene (PTFE), thus sealing knot
The resistance to elevated temperatures and anti-wear performance of structure 5 are further lifted, so as to reduce the frequency for stuck problem occur, specifically,
Occur that ageing hardening occurs and makes regulation ring 2 stuck and then causes displacement-variable oil pump 100 can not because sealing structure 5 is heated
The frequency of the problem of work reduces.
Adjusting part 6 according to embodiments of the present invention is described referring to Fig. 9-Figure 11, as shown in fig. 10 and fig. 12, regulation
Component 6 includes：First spring 61, spring base 63 and second spring 62.
Regulation ring 2 is provided with the boss 22 extended radially outward, and the pump housing 1 is provided with mounting groove 17, boss 22 and regulation group
Part 6 is each provided in mounting groove 17, and the inwall of mounting groove 17 is inwardly protruding to form stage portion 18.
As shown in fig. 10 and fig. 12, the first spring 61 and second spring 62 are located at the both sides of boss 22, the first spring respectively
61 positioned at mounting groove 17 roof 171 and boss 22 between, second spring 62 be located at mounting groove 17 bottom wall 172 and boss 22 it
Between, the first spring 61 is arranged to that the power that the direction for making regulation ring 2 towards eccentric throw L reduce is swung, the second bullet can be applied to boss 22
Spring 62 is arranged to that the power that the direction for making regulation ring 2 towards eccentric throw L increase is swung can be applied to boss 22.
First spring 61 is arranged on spring base 63, and the spring 61 of spring base 63 and first is located at the same side of boss 22,
Stage portion 18 is between boss 22 and spring base 63 and stage portion 18 is suitable to backstop spring base 63 so that the first spring 61 stops
The power that the direction that applying to boss 22 makes regulation ring 2 reduce towards eccentric throw L is swung.
Further, the surface towards spring base 63 of boss 22 is provided with guide finger 221, and spring base 63 movably covers
It is located on guide finger 221, so that it is guaranteed that spring base 63 is with respect to axial movement of the boss 22 along guide finger 221, it is ensured that adjusting part 6
Degree of regulation.
With reference to structure above, reference picture 1- Figure 13 descriptions it is according to embodiments of the present invention be used for engine 200
The course of work of displacement-variable oil pump 100：
Displacement-variable oil pump 100 for engine 200 according to embodiments of the present invention can realize that two-stage is adjusted.
One-level regulation process Q1 is as follows：
Shown in reference picture 13, when the slow-speed of revolution of engine 200 is run, the rotor 3 of displacement-variable oil pump 100 is with bent axle
210 rotate counterclockwise, and the eccentric throw L of regulation ring 2 and rotor 3 is fuel-displaced as shown in figure 9, as the rotating speed of engine 200 constantly raises
13 pressure rises of mouth, regulation ring 2 reduce around the counter-clockwise swing of bearing pin 71, the increase of the volume of oil sucting cavity 81, the volume of oil outlet chamber 82, regulation
Ring 2 withstands spring base 63, and spring base 63 promotes the first spring 61, and the rotating speed of engine 200 continues to raise, and the first spring 61 is flexibly
Only it is against between spring base 63 and the roof 171 of mounting groove 17, so that the generation of the first spring 61 is anti-as shown in F1 in Figure 10
Active force, you can the power for reducing eccentric throw L, adjust rotor 3 and the eccentric throw of regulation ring 2, when the quilt of the first spring 61
Certain length is compressed to, the active force that engine oil pressure acts on regulation ring 2 to the active force of regulation ring 2 with the first spring 61 is put down
Weighing apparatus, engine oil pressure maintain certain level.
Two level regulation process Q2 is as follows：
Shown in reference picture 13, when the rotating speed of engine 200 continues to raise, until as shown in figure 12, spring base 63 is by the pump housing 1
Stage portion 18 stop that influence of first spring 61 to regulation ring 2 disappears, the pressure of oil outlet chamber 82 continues to increase, and oil pressure is pushed
Dynamic regulation ring 2 is rotated clockwise around bearing pin 71, and the volume of oil sucting cavity 81 reduces, and the volume of oil outlet chamber 82 increase, second spring 62 is pressed
Contracting, i.e. second spring 62 are flexibly only against between boss 22 and the bottom wall 172 of mounting groove 17, so that second spring 62 produces
Reaction force as shown in F2 in Figure 12, you can the power for increasing eccentric throw L, adjust rotor 3 and the eccentric throw of regulation ring 2
Whole, second spring 62 is compressed to certain length, and engine oil pressure is to the active force and second spring 62 of regulation ring 2 to regulation ring 2
Active force reach balance, engine oil pressure reaches stable.
Engine oil pressure curve corresponding to above-mentioned two-stage regulation process is as shown in Figure 13 curve Q, traditional quantitative lubricating oil pump
Engine oil pressure curve as shown in Figure 13 curve P, it can be seen that, displacement-variable oil pump 100 according to embodiments of the present invention
Pressure be two-stage variable, realize the purpose that engine oil pressure under normal revolution reduces, advantageously reduce displacement-variable oil pump 100
Driving torque and power, so as to reduce the oil consumption of engine 200, improve the discharge of engine 200.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect or can communicate each other；Can be joined directly together, can also be indirectly connected by intermediary, can be with
It is connection or the interaction relationship of two elements of two element internals, is limited unless otherwise clear and definite.For this area
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (11)
- A kind of 1. displacement-variable oil pump for engine, it is characterised in that including：The pump housing, the pump housing are provided with seal mounting hole, inlet port and oil-out；Regulation ring, the regulation ring are located in the pump housing and are swingably connected with the pump housing；Rotor, the rotor are adapted to mount on bent axle and are radially positioned in the regulation ring, the rotor and the tune Save ring eccentric setting；Multiple blades, the multiple blade is along the circumferentially-spaced of the rotor and is movably arranged on the rotor with by described in Space between rotor and the regulation ring is divided into multiple working chambers；Sealing structure, the sealing structure are located between the pump housing and the regulation ring with by the pump housing and the regulation ring Between region be divided into oil sucting cavity and oil outlet chamber, the inlet port connects with the oil sucting cavity, the oil-out with it is described go out Oil pocket connects；Adjusting part, the adjusting part are located between the regulation ring and the pump housing to adjust the regulation ring and described turn The eccentric throw of son；The outer peripheral face of the regulation ring is provided with one in the inner surface of the outer peripheral face of the regulation ring and the pump housing With another unlimited groove in the inner surface of the pump housing；The sealing structure is arranged in the groove, and is arranged at intervals including multiple sealing lips, multiple sealing lips, each The sealing lip is flexibly only against on another in the outer peripheral face of the regulation ring and the inner surface of the pump housing；The sealing structure includes：Seal shaft, the seal shaft are connected with the bottom wall of groove, thickness direction extension of the seal shaft along the regulation ring；Sealing gasket, the sealing gasket include sealing gasket bottom wall and multiple sealing gasket side walls, and the multiple sealing gasket side wall is described in Regulation ring is provided at circumferentially spaced on the sealing gasket bottom wall, and one end of the sealing gasket side wall forms the sealing lip, institute The other end for stating sealing gasket side wall is flexibly only against on the bottom wall of the groove；The sealing gasket bottom wall is provided with groove, institute The coupling part for stating seal shaft and the bottom wall of the groove is clamped in the groove.
- 2. the displacement-variable oil pump according to claim 1 for engine, it is characterised in that the sealing gasket construction For U-shaped.
- 3. the displacement-variable oil pump for engine according to any one of claim 1-2, it is characterised in that described Sealing structure is polytetrafluoroethylene (PTFE) part.
- 4. the displacement-variable oil pump according to claim 1 for engine, it is characterised in that the inner circumferential of the rotor Guide frame is configured with face, the guide frame includes the guide groove extended along the thickness direction of the rotor or is oriented to rib.
- 5. the displacement-variable oil pump according to claim 4 for engine, it is characterised in that the guide frame is Multiple and being provided at circumferentially spaced along the rotor.
- 6. the displacement-variable oil pump according to claim 1 for engine, it is characterised in that also include：Back-up ring, institute State back-up ring to be movably installed on the rotor, in the outer end of the radially described blade of the rotor and the regulation ring Inner peripheral surface only supports, and the inner and back-up ring of the blade only supports.
- 7. the displacement-variable oil pump according to claim 1 for engine, it is characterised in that the pump housing is provided with It is at least one in generator mounting hole, belt stress fixing hole and compressor of air conditioner fixing hole.
- 8. the displacement-variable oil pump for engine according to any one of claim 1-2,4-7, it is characterised in that The regulation ring is provided with the boss extended radially outward；The adjusting part includes：First spring, first spring, which is located at the side of the boss and is arranged to the boss to apply, makes the regulation The power that ring is swung towards the direction that the eccentric throw reduces；Second spring, the second spring, which is located at the opposite side of the boss and is arranged to the boss to apply, makes the tune The power that section ring is swung towards the direction that the eccentric throw increases.
- 9. the displacement-variable oil pump according to claim 8 for engine, it is characterised in that the adjusting part is also Including：Spring base, first spring are arranged on the spring base, and the spring base is located at the side of the boss；The pump housing is provided with mounting groove, and the boss and the adjusting part are each provided in the mounting groove, the mounting groove Inwall it is inwardly protruding to form stage portion, the stepped portions are between the boss and the spring base and are suitable to backstop institute Spring base is stated so that first spring stops applying the direction for making the regulation ring towards the eccentric throw reduce to the boss The power of swing.
- 10. the displacement-variable oil pump according to claim 9 for engine, it is characterised in that the court of the boss Guide finger is provided with to the surface of the spring base, the spring base is slidably set on the guide finger.
- A kind of 11. engine pack, it is characterised in that including：Engine, the engine include bent axle；Front oil seal, the Front oil seal are set on the bent axle；The displacement-variable oil pump for engine according to any one of claim 1-10, the rotor are arranged on institute State on bent axle, the Front oil seal is folded between the inwall of the seal mounting hole and the bent axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510163129.9A CN104913181B (en) | 2015-04-08 | 2015-04-08 | For engine displacement-variable oil pump and there is its engine pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510163129.9A CN104913181B (en) | 2015-04-08 | 2015-04-08 | For engine displacement-variable oil pump and there is its engine pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104913181A CN104913181A (en) | 2015-09-16 |
| CN104913181B true CN104913181B (en) | 2018-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510163129.9A Expired - Fee Related CN104913181B (en) | 2015-04-08 | 2015-04-08 | For engine displacement-variable oil pump and there is its engine pack |
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| Country | Link |
|---|---|
| CN (1) | CN104913181B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108716611A (en) * | 2018-07-24 | 2018-10-30 | 世特科汽车工程产品（常州）有限公司 | A kind of engine oil pump assembly of no relief valve |
| CN111980914B (en) * | 2020-08-05 | 2022-04-08 | 宁波圣龙汽车动力系统股份有限公司 | Variable-displacement double-acting vane pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072149A (en) * | 2009-11-25 | 2011-05-25 | 日立汽车系统株式会社 | Variable displacement pump |
| CN202992599U (en) * | 2012-12-07 | 2013-06-12 | 湖南机油泵股份有限公司 | Pump body with chain tensioner mounting hole of oil pump |
| CN203549340U (en) * | 2013-10-16 | 2014-04-16 | 宁波圣龙汽车动力系统股份有限公司 | Variable-displacement pump |
| DE102013224208A1 (en) * | 2012-11-27 | 2014-05-28 | Hitachi Automotive Systems, Ltd. | variable |
-
2015
- 2015-04-08 CN CN201510163129.9A patent/CN104913181B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072149A (en) * | 2009-11-25 | 2011-05-25 | 日立汽车系统株式会社 | Variable displacement pump |
| DE102013224208A1 (en) * | 2012-11-27 | 2014-05-28 | Hitachi Automotive Systems, Ltd. | variable |
| CN202992599U (en) * | 2012-12-07 | 2013-06-12 | 湖南机油泵股份有限公司 | Pump body with chain tensioner mounting hole of oil pump |
| CN203549340U (en) * | 2013-10-16 | 2014-04-16 | 宁波圣龙汽车动力系统股份有限公司 | Variable-displacement pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104913181A (en) | 2015-09-16 |
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Effective date of registration: 20180416 Address after: No. 188, Miyun District, Miyun District, Beijing, Beijing Patentee after: Beijing treasure Car Co.,Ltd. Address before: 102206 Changping District City, Shahe, Sha Yang Road, Beijing Patentee before: BEIQI FOTON MOTOR Co.,Ltd. |
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Address after: No. 188, Miyun District, Miyun District, Beijing, Beijing Patentee after: Beijing baowo Automobile Co.,Ltd. Address before: No. 188, Miyun District, Miyun District, Beijing, Beijing Patentee before: Beijing treasure Car Co.,Ltd. |
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Denomination of invention: Variable displacement oil pump for engine and engine assembly having the same Effective date of registration: 20211213 Granted publication date: 20180119 Pledgee: BEIJING AUTOMOTIVE GROUP Co.,Ltd. Pledgor: Beijing baowo Automobile Co.,Ltd. Registration number: Y2021990001167 |
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Date of cancellation: 20230925 Granted publication date: 20180119 Pledgee: BEIJING AUTOMOTIVE GROUP Co.,Ltd. Pledgor: Beijing baowo Automobile Co.,Ltd.|Borgward Automotive (China) Co., Ltd. Registration number: Y2021990001167 |
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