CN109854933A - A kind of rotor pump structure of integrated water pump - Google Patents
A kind of rotor pump structure of integrated water pump Download PDFInfo
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- CN109854933A CN109854933A CN201910274376.4A CN201910274376A CN109854933A CN 109854933 A CN109854933 A CN 109854933A CN 201910274376 A CN201910274376 A CN 201910274376A CN 109854933 A CN109854933 A CN 109854933A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 206010008469 Chest discomfort Diseases 0.000 claims abstract description 66
- 230000001105 regulatory effect Effects 0.000 claims abstract description 42
- 230000000903 blocking effect Effects 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 52
- 238000000465 moulding Methods 0.000 claims description 3
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 323
- 238000010586 diagram Methods 0.000 description 7
- 239000012535 impurity Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000001050 lubricating effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009123 feedback regulation Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000029142 excretion Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Lubrication Of Internal Combustion Engines (AREA)
- Rotary Pumps (AREA)
Abstract
A kind of rotor pump structure of integrated water pump, including impeller pump and water pump, impeller pump includes the pump housing, pump cover, internal rotor, outer rotor and regulating valve, low pressure chamber is offered on the pump housing, high pressure chest, oil suction chamber, valve opening, the ring-shaped step of installation crankshaft oil seal is also provided on the pump housing, water inlet is offered on water pump, water outlet and oil outlet, regulating valve includes spring, plunger and blocking, plunger is integrally in goblet shape, including cylindrical portion, stem, round plate, one end of spring is mounted in cylindrical portion, a transporting room is formed between stem and the hole wall of valve opening, the outside of round plate is equipped with a protrusion, a feedback oil pocket is formed between round plate and blocking, the mouth that high pressure chest leads to valve opening can be blocked or be opened by cylindrical portion；It is also provided on the pump housing and draws oilhole and feedback oilhole, draw the side that low pressure chamber and high pressure chest is arranged in oilhole, feed back oilhole close to low pressure chamber, the one end for feeding back oilhole is connected to oilhole is drawn, and the other end is connected to feedback oil pocket.
Description
Technical field
The present invention relates to lubricating system of IC engine, a kind of especially rotor pump structure of integrated water pump.
Background technique
Currently, water pump and impeller pump are installed separately in most of automobile engine cylinder-body, but because of certain engines
The space of cylinder body is limited, and water pump can integrate the side for being mounted on impeller pump, as shown in Figure 1, not only offering water inlet on water pump B
8 and water outlet 9, it is also provided with oil outlet 10, the machine oil in impeller pump A is sent into lubricating pipe by the oil outlet 10 on water pump B
In, it so can effectively save the occupied space of pump.
As shown in Figure 1, the impeller pump A of traditional structure mainly includes the pump housing 1, pump cover 2, internal rotor 3, outer rotor 4 and adjusts
Valve 5, the middle part of the pump housing 1 offer rotor chamber, and internal rotor 3 and outer rotor 4 are intermeshed and are mounted in rotor chamber, the pump housing 1
Low pressure chamber 1a, high pressure chest 1b, oil suction chamber 1c are offered on mounting surface (namely other one side opposite with its lateral surface on the pump housing 1)
And the valve opening 1d of installation and adjustment valve 5, oil suction chamber 1c are connected to low pressure chamber 1a, the oil outlet 10 on water pump B and high pressure chest 1b connect
Logical, valve opening 1d is connected to low pressure chamber 1a and high pressure chest 1b respectively, and pump cover 2 is mounted on the mounting surface of the pump housing 1, drives internal rotor 3
The crankshaft 6 of rotation extends vertically through pump cover 2, internal rotor 3 and the pump housing 1, and being equipped on the lateral surface of the pump housing 1 prevents oil liquid from the pump housing 1
Axis hole China and foreign countries release the crankshaft oil seal 7 come, it is generally the case that, can be in the outer of the pump housing 1 in order to preferably install crankshaft oil seal 7
As soon as opening up a ring-shaped step 1e for the axis hole for surrounding the pump housing 1 on side, crankshaft oil seal 7 is mounted in ring-shaped step 1e.
It is well known that impeller pump can provide the machine oil of enough pressure and flow for lubricating system, when lubricating system main oil gallery
Oil pressure it is excessive when, feed back oil circuit pressure oil can enter impeller pump valve opening feedback oil pocket in, promote regulating valve to move, subtract
The oil liquid of few high pressure chest is discharged from oil outlet, so that the oil pressure in main oil gallery is reduced, conversely, regulating valve opposite direction moves, and it is fuel-displaced
The oil increasing of mouthful discharge, the oil pressure in main oil gallery increases, and in this adjustment process, the unlatching of regulating valve should be by impeller pump
The oil pressure that main oil gallery feeds back oil circuit determines.However, in above-mentioned traditional impeller pump, since the feedback oil circuit setting of main oil gallery exists
Close to the side of rotor high pressure chest, therefore the feedback oilhole for receiving feedback oil circuit pressure oil is also disposed at one close to high pressure chest
Side, this design, which seems, can simplify structure, in fact, it is logical to have a small amount of high pressure oil during the oil extraction of rotor high pressure chest
The gap crossing pump housing valve opening and adjusting between valve plunger enters at feedback oil pocket, in this way, which difference can be received by feeding back oil pocket
Two strands of pressure oils from high pressure chest and main oil gallery, in comparison, the pressure oil in high pressure chest can be than the pressure in main oil gallery
Oil pressure fluctuation is big, and the pressure oil in high pressure chest can be reached earlier in feedback oil pocket, therefore, when the oil pressure of high pressure chest is slightly higher
When, with regard to very possible interference adjustments valve regulation oil pressure, so that regulating valve is opened in advance or inappropriate unlatching, to cause lubricating oil pump
Interior oil pressure is unstable, adjusts the problem of inaccuracy.
Crankshaft oil seal end apart from internal rotor of the above-mentioned traditional impeller pump there is also a more significant problem, on the pump housing
Face can store many oil liquid between the two, when rotor runs at high speed, these oil liquid can be to crankshaft oil seal there are also certain distance
Biggish pressure is generated, in addition, can also store some remaining oil liquid and impurity, especially ring between crankshaft oil seal and ring-shaped step
The corner location of shape step, these oil liquid and impurity can not equally eject well, this will corrode crankshaft oil seal, reduce
The service life of crankshaft oil seal.
Summary of the invention
The rotor pump structure of integrated water pump provided by the invention can be very good to solve the high pressure oil in impeller pump high pressure chest
The problem of interference adjustments valve regulation oil pressure.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme: a kind of rotor pump structure of integrated water pump,
Including impeller pump and the water pump for being fixed on impeller pump side；The impeller pump includes the pump housing, pump cover, internal rotor, outer rotor and tune
Valve is saved, the valve opening of low pressure chamber, high pressure chest, oil suction chamber and installation and adjustment valve, the pump are offered on the mounting surface of the pump housing
Axis hole on the lateral surface of body around the pump housing offers the ring-shaped step of installation crankshaft oil seal；It is offered on the water pump into water
Mouth, water outlet and oil outlet；The oil suction chamber is connected to low pressure chamber, and the oil outlet is connected to high pressure chest, the valve opening difference
It is connected to low pressure chamber and high pressure chest；
The regulating valve includes the spring, plunger and blocking being successively set in valve opening from inside to outside, and the plunger is integrally in high
Footed glass shape, cylindrical portion including inner end, intermediate stem, outboard end round plate, one end of the spring is mounted on circle
In canister portion, a transporting room is formed between the stem and the hole wall of valve opening, the outside of the round plate, which is equipped with one, to be supported
The protrusion of blocking is touched, forms a feedback oil pocket between the round plate and blocking, the cylindrical portion can lead to high pressure chest
The mouth of valve opening is blocked or is opened；
It is also provided on the pump housing and draws oilhole and feedback oilhole, the oilhole that draws is horizontally installed on the same of low pressure chamber and high pressure chest
Side, the feedback oilhole are also located close to the position of low pressure chamber, and one end of the feedback oilhole is connected to oilhole is drawn, described anti-
The other end vertical connection for presenting oilhole feeds back oil pocket.
Further, the feedback oilhole is connected to by a round hole with oilhole is drawn, and the feedback oilhole passes through one
Stepped hole is connected to feedback oil pocket, and the bore of the stepped hole gradually becomes smaller from the direction that feedback oilhole leads to feedback oil pocket.
Further, the low pressure chamber includes the first low pressure chamber and the second low pressure chamber, the high pressure chest and described first
Low pressure chamber is symmetrically centered around outside the axis hole of the pump housing, and second low pressure chamber is centered around outside the high pressure chest, first low pressure chamber
One end be connected to oil suction chamber, the other end of first low pressure chamber is connected to one end of the second low pressure chamber, second low pressure chamber
The other end be connected to the middle part of valve opening, the middle part of the high pressure chest is connected to the middle part of valve opening.
Further, the junction of the stem and cylindrical portion and round plate is bevel structure；The valve opening
Bottom is equipped with spring base, and one end of the spring is mounted in spring base.
Still further, the edge of the pump housing mounting surface is equipped with frame, offered on the frame of pump housing lower part
One notch, after the pump cover is installed on the mounting surface of the pump housing, the surface of pump cover is lower than the frame of the pump housing, the axis hole of the internal rotor
Upper axial direction offers multiple oil scuppers with the equal length of the axis hole of internal rotor, between the crankshaft oil seal and internal rotor end face
Oil liquid can be drained into outside pump cover by oil scupper, then flowed into oil sump by the notch of the pump housing；
Inclined oil hole of air is also provided on the pump housing, the entrance of the inclined oil hole of air is provided on ring-shaped step, and outlet is provided with the pump housing
Bottom, the oil liquid between the crankshaft oil seal and ring-shaped step can be drained into oil sump by inclined oil hole of air.
Still further, being also provided on the axis hole of the internal rotor and each spline of crankshaft multiple keys matched one by one
The quantity of slot, the oil scupper and keyway is respectively 6, and 6 oil scuppers and 6 keyways distribute alternately.
Further, the oil scupper is semicircle or rectangular gap slot, the depth of the oil scupper and keyway
Deep equality, the width of the oil extraction channel opening are the 1/3 of keyway opening width.
Further, the inclined oil hole of air includes the first inclined oil hole of air and the second inclined oil hole of air that inclination opens up, and described first tiltedly
The entrance of oilhole is provided with the corner of ring-shaped step, and the outlet of first inclined oil hole of air is connected to the entrance of the second inclined oil hole of air,
The outlet of second inclined oil hole of air is provided with the bottom of the pump housing, and the cross section of first inclined oil hole of air and the second inclined oil hole of air is ellipse
It is round.
Preferably, the position of face pump housing oil suction chamber offers oil inlet on the pump cover, and the edge of the oil inlet is set
There is the rubber seal of molding, the thickness of the rubber seal is equal to the frame of the pump housing and the difference in height of pump cover.
Preferably, there are two strips towards symmetrically being opened up on the side of rotor chamber centered on the axis hole of pump cover for the pump cover
Oil groove, the internal rotor and outer rotor which is engaged with each other.
Compared with traditional impeller pump, the improvement of the rotor pump structure of integrated water pump involved by the present invention is:
One increases the oily conduction hole for leading to low-pressure end of feedback that can will be close to feed back oil circuit in the main oil gallery of high-voltage end,
The feedback oilhole on the pump housing is allowed to be provided with low-pressure end, when work, the oil liquid of low pressure chamber will not enter feedback oil pocket substantially
In, only when the oil pressure of main oil gallery is excessively high, regulating valve just can smoothly be held by the feedback oil in the feedback oilhole for being located at low-pressure end
It opens, therefore such structure is it is possible to prevente effectively from the high pressure oil of high pressure chest enters feedback oil pocket interference adjustments valve work, so that adjusting
Valve only receives the feedback of main oil gallery feedback oil, so as to it is timely, accurately adjust oil pressure, guarantee the stability of impeller pump oil pressure；
Secondly, simplify the structure of regulating valve, plunger is integrally in goblet shape, the cylindrical portion including inner end, intermediate bar
Shape portion, outboard end round plate, feedback oil pocket can be formed between round plate and blocking, so can be to avoid opening up oil in blocking
Hole and feedback oil pocket, and three components of plunger are the parts of shape rule, are very easy to processing, are conducive to batch production, no
Only in this way, this regulating valve is while structure is simplified, the effect of feedback oil pressure is also improved, the pressure of main oil gallery
Oil by feedback oilhole enter feedback oil pocket after, it is very big with the contact surface of round plate, can effectively push ram compression bullet
Spring opens mouth of the high pressure chest by valve opening, realizes the effect of feedback regulation oil pressure.
Thirdly, increase the space of low pressure chamber, low pressure chamber includes the first low pressure chamber and the second low pressure chamber, and regulating valve is opened
Afterwards, the internal drainage of high pressure chest can be sent directly into the second low pressure chamber, then be supplied to first with oil liquid two strands of oil of formation of oil suction chamber
Low pressure chamber, this structure of low pressure chamber can not only play the role of adjusting oil pressure, can also simplify oil channel structures, avoid the need for
Additional designs channel, which send internal drainage to oil sump, can also improve the plot ratio of low pressure chamber at the same time；
Four, it is devised in impeller pump convenient for some remaining oil liquid and impurity to be discharged into the structure of oil sump, the axis hole of internal rotor
On offer oil scupper, oil scupper can smoothly drain into the oil liquid between crankshaft oil seal and internal rotor end face outside pump cover, into
And be discharged into oil sump by the notch of the pump housing, so that the surge that oil liquid herein forms crankshaft oil seal is greatly reduced,
Reduce the adverse effect to crankshaft oil seal；Inclined oil hole of air is also provided on the impeller pump pump housing, inclined oil hole of air can be by crankshaft oil seal and annular
Oil liquid between step is discharged into oil sump, and the oil liquid on ring-shaped step can constantly be updated with the operating of impeller pump,
Impeller pump so it is possible to prevente effectively from outmoded oil liquid and impurity corrode crankshaft oil seal, compared to traditional impeller pump, in the present invention
It can make the service life of crankshaft oil seal will be longer.
Detailed description of the invention
Fig. 1 is the structural schematic diagram (not drawing pump cover) of the impeller pump of traditional integrated water pump；
Fig. 2 is the structural schematic diagram of the impeller pump of traditional integrated water pump；
Fig. 3 is the cross-sectional view in Fig. 2 along the direction A-A；
Fig. 4 is the schematic diagram (not drawing pump cover) of the rotor pump structure of integrated water pump involved by the present invention；
Fig. 5 is that the schematic diagram of the rotor pump structure of integrated water pump involved by the present invention (does not draw pump cover, crankshaft, internal rotor, outer turn
Son)；
Fig. 6 is the enlarged drawing at the position C in Fig. 5；
Fig. 7 is the decomposition diagram of regulating valve involved by the present invention；
Fig. 8 is sectional side elevation when regulating valve involved by the present invention is closed；
Fig. 9 is sectional side elevation when regulating valve involved by the present invention is opened；
Figure 10 is the schematic diagram of the rotor pump structure of integrated water pump involved by the present invention；
Figure 11 is the cross-sectional view in Figure 10 along the direction A-A；
Figure 12 is the structural schematic diagram of internal rotor involved by the present invention.
Appended drawing reference are as follows:
A --- impeller pump B --- water pump
1 --- pump housing 1a --- low pressure chamber 1a1 --- first low pressure chamber
1a2 --- the second low pressure chamber 1b --- high pressure chest 1c --- oil suction chamber
1d --- valve opening 1d1 --- feedback oil pocket 1e --- ring-shaped step
1f --- draws oilhole 1g --- feedback oilhole 1h --- notch
1i --- inclined oil hole of air 1i1 --- the first inclined oil hole of air 1i2 --- second inclined oil hole of air
2 --- pump cover 2a --- oil inlet 3 --- internal rotors
3a --- oil scupper 3b --- keyway 4 --- outer rotor
5 --- regulating valve 5a --- spring 5b --- plungers
5b1 --- cylindrical portion 5b2 --- stem 5b3 --- round plate
5c --- blocking 5d --- spring base 6 --- crankshaft
7 --- crankshaft oil seal 8 --- water inlet 9 --- water outlets
10 --- oil outlet 11 --- round hole 12 --- stepped holes.
Specific embodiment
For the ease of the understanding of those skilled in the art, the present invention is made further below with reference to embodiment and attached drawing
Bright, the content that embodiment refers to not is limitation of the invention.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is orientation based on the figure or position
Relationship is set, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise specified and limited, term " installation ", " connected ",
" connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, the connection being also possible to inside two elements can
, can also indirectly connected through an intermediary, for the ordinary skill in the art to be to be connected directly, it can basis
Concrete condition understands the concrete meaning of the term.
It is as shown in Figure 1 the rotor pump structure of traditional integrated water pump, which explains in the background technology, at this
In rotor pump structure, valve opening 1d is horizontally installed on the top of low pressure chamber 1a and high pressure chest 1b, and connection main oil gallery feeds back the anti-of oil circuit
Feedback oilhole 1g is provided with the right side of valve opening 1d and close to high pressure chest 5, and regulating valve 5(uses traditional plunger type regulating valve, packet
Include spring 5a, plunger 5b, blocking 5c) be mounted in valve opening 1d after, plunger 5b, which is located at, blocks up low pressure chamber 1a towards the mouth of valve opening 1d
Position firmly, spring 5a are mounted on the left side of plunger 5b, and the feedback oil pocket 1d1 in valve opening 1d is located at the rightmost side of plunger 5b, valve
There are small―gap suture between hole 1d and plunger 5b, which can make the high pressure oil of high pressure chest 1b enter to feedback oil from high pressure chest 1b
In chamber 1d1, once high pressure oil oil pressure is more than the cracking pressure of regulating valve 5, high pressure oil can push plunger 5b to be moved to the left, and compress
Spring 5a opens the mouth that low pressure chamber 1a leads to valve opening 1d, conversely, high pressure oil oil pressure drops to certain value, spring 5a restores, plunger
5b moves right, and again blocks the mouth of low pressure chamber 1a towards valve opening 1d, it is clear that such regulative mode is not based on main oil gallery
The feedback regulation that carries out of feedback oil, and the regulative mode is excessively sensitive, and the stability that oil pressure is adjusted is undesirable.
The shortcomings that integrating the impeller pump of water pump for tradition can actually be solved by changing the position of feedback oilhole
High pressure oil can open the problem of regulating valve, it is contemplated that and the oil liquid oil pressure in low pressure chamber is smaller, can not open regulating valve substantially, because
This, can will feed back low-pressure end of the Position Design in the pump housing of oilhole, feed back oil circuit apart from main oil gallery accordingly, due to low-pressure end
Farther out, it needs to design a channel feedback oil of main oil gallery feedback oil circuit is introduced in feedback oilhole, further more, regulating valve valve opening
The position for feeding back oil pocket should will change close to the direction of motion of low pressure chamber namely regulating valve, currently, for adjusting in lubricating oil pump
The type of the regulating valve of outlet oil pressure is more, compares typically plunger type regulating valve, and traditional plunger type regulating valve is most
It needs to open up oilhole and feedback oil pocket in blocking, and blocks and need to play the role of fixed and seal, structure is somewhat complicated, no
Conducive to processing.In view of the above thinking, present embodiment improves the pump housing and regulating valve structure of impeller pump, specifically such as
Under.
As shown in figure 4, a kind of rotor pump structure of integrated water pump, including impeller pump A and water pump B；Impeller pump A includes the pump housing
1, pump cover 2, internal rotor 3, outer rotor 4 and regulating valve 5 offer low pressure chamber 1a, high pressure chest 1b, oil inlet on the mounting surface of the pump housing 1
The valve opening 1d(of chamber 1c and installation and adjustment valve 5 is certain, and axis hole and rotor chamber are also provided on the pump housing 1, with traditional impeller pump one
Sample, these structures do not make improvements, therefore do not state carefully herein), the axis hole on the lateral surface of the pump housing 1 around the pump housing 1 offers peace
Fill the ring-shaped step 1e of crankshaft oil seal 7；Water pump B is mounted on the side close to high pressure chest 1b of impeller pump A, opens up on water pump B
There are water inlet 8, water outlet 9 and oil outlet 10；Oil suction chamber 1c is connected to low pressure chamber 1a, and oil outlet 10 is connected to high pressure chest 1b, valve
Hole 1d is connected to low pressure chamber 1a and high pressure chest 1b respectively；
Regulating valve 5 includes spring 5a, the plunger 5b being successively set in valve opening 1d from inside to outside and blocking 5c, plunger 5b are integrally in
Goblet shape, cylindrical portion 5b1 including inner end, intermediate stem 5b2, outboard end round plate 5b3, one end of spring 5a
It is mounted in cylindrical portion 5b1, forms a transporting room between stem 5b2 and the hole wall of valve opening 1d, set on the outside of round plate 5b3
There is the protrusion that can contradict blocking, feedback an oil pocket 1d1, cylindrical portion 5b1 are formed between round plate 5b3 and blocking 5c can be with
The mouth of high pressure chest 1b towards valve opening 1d are blocked or opened；
It is also provided on the pump housing 1 and draws oilhole 1f and feedback oilhole 1g, drawn oilhole 1f and be horizontally installed on low pressure chamber 1a and high pressure chest 1b
The same side, feedback oilhole 1g is also located close to the position of low pressure chamber 1a, and one end of feedback oilhole 1g is connected to oilhole 1f is drawn, instead
The other end vertical connection for presenting oilhole 1g feeds back oil pocket 1d1.
In the rotor pump structure of above embodiment, as shown in figure 4, the aperture of valve opening 1d is provided with the left side of the pump housing 1,
After regulating valve 5 is mounted in valve opening 1d, spring 5a is located at the bottom hole of valve opening 1d, and plunger 5b is located at the middle part of valve opening 1d, blocks 5c
At the aperture of valve opening 1d, it is clear that the direction of the installation direction of the regulating valve 5 and traditional impeller pump installation and adjustment valve is just
Although on the contrary, there is also small―gap sutures between valve opening 1d and round plate 5b3, since low pressure chamber 1a is under such mounting means
Negative pressure, therefore can be entered to substantially by the small―gap suture in feedback oil pocket 1d1 without oil liquid, so, it is only anti-from main oil gallery
The pressure oil of feedback oil circuit can just be such that regulating valve 5 opens, specifically, as shown in Fig. 4,8,9, when the oil pressure of main oil gallery is excessively high,
The pressure oil of main oil gallery by draw oilhole 1f be introduced into feedback oilhole 1g in again reach feedback oil pocket 1d1 in, then act on circle
The end face of pan portion 5b3 pushes plunger 5b that the elastic force of spring 5a is overcome to move right, until cylindrical portion 5b1 is from getting lodged in high pressure chest 1b
Removed towards the position of the mouth of valve opening 1d, enable high pressure chest 1b and low pressure chamber 1a by stem 5b2 and valve opening 1d hole wall it
Between transporting room connection, at this point, having part oil liquid that can enter in low pressure chamber 1a in high pressure chest 1b, so that high pressure chest 1b is from oil outlet
The oil liquid of 10 discharges can be reduced, and the oil pressure in main oil gallery is minimized, conversely, when the oil pressure of main oil gallery is too small, regulating valve 5
Spring 5a, which resets, pushes cylindrical portion 5b1 to be moved to the left, and again blocks the mouth of high pressure chest 1b towards valve opening 1d, therefore high pressure chest 1b
It can not be connected between low pressure chamber 1a, the oil increasing being discharged from oil outlet 10, the oil pressure in main oil gallery is increased.
Obviously, the impeller pump in present embodiment is it is possible to prevente effectively from the high pressure oil of high pressure chest 1b enters feedback oil pocket 1d1
Interference adjustments valve 5 works, so that regulating valve 5 only receives the feedback of main oil gallery feedback oil, so as to timely, accurate adjusting oil
Pressure guarantees the stability of impeller pump oil pressure.From the foregoing, present embodiment changes the regulating valve 5 in impeller pump A
Into plunger 5b is integrally in goblet shape, and plunger 5b includes the cylindrical portion 5b1 of inner end, intermediate stem 5b2, outboard end
Round plate 5b3, these three components of plunger 5b are the parts of shape rule, be very easy to processing, and be conducive to batch production,
And the connection type between three components is also very simple, it can be real using welding, threaded connection or other conventional connection types
Existing, exactly plunger 5b has made above-mentioned simple improvement, feedback oil pocket 1d1 can be formed between round plate 5b3 and blocking 5c, to keep away
Exempt to open up oilhole and feedback oil pocket on blocking 5c.It sees on the whole, the structure of the regulating valve 5 in present embodiment is obvious to be obtained
Simplification is arrived.It is emphasized that this regulating valve 5, while structure is simplified, the effect of feedback oil pressure also obtains
It improving, the pressure oil of main oil gallery is very big with the contact surface of round plate 5b3 after feedback oilhole 1g enters feedback oil pocket 1d1,
It can effectively push plunger 5b compressed spring 5a to open the mouth that high pressure chest 1b passes through valve opening 1d, realize the work of feedback regulation oil pressure
With.In the impeller pump A of present embodiment, it is important that there are also, it is generally the case that regulating valve 5 is when adjusting oil pressure, meeting
Oil liquid (hereinafter referred to as " internal drainage ") extra in high pressure chest 1b is sent into oil sump, and in this structure, in high pressure chest 1b
Internal drainage be sent directly into low pressure chamber 1a, can not only play the role of adjust oil pressure, oil channel structures can also be simplified, avoid need
Additional designs channel is wanted to send internal drainage to oil sump, at the same time, the internal drainage of high pressure chest 1b and the oil liquid shape of oil suction chamber 1c
It is supplied to low pressure chamber 1a at two strands of oil, the plot ratio of low pressure chamber 1a can also be improved.
Further, as shown in fig. 6, feedback oilhole 1g is connected to by a round hole 11 with oilhole 1f is drawn, oilhole 1g is fed back
It is connected to by a stepped hole 12 with feedback oil pocket 1d1, the bore of stepped hole 12 leads to feedback oil pocket 1d1's from feedback oilhole 1g
Direction gradually becomes smaller, which has damping action, and the pressure oscillation that oil is fed back in feedback oilhole 1g can be effectively reduced,
Further increase the stability of oil pressure.
In order to guarantee that the internal drainage in high pressure chest 1b is smoothly sent into low pressure chamber 1a, make the internal drainage and oil suction chamber of high pressure chest 1b
The oil liquid of 1c forms two strands of oil and is supplied to low pressure chamber 1a, further, can be by the space of low pressure chamber 1a expansion (tradition appropriate
Impeller pump, the space size of high pressure chest and low pressure chamber is essentially identical, and the two is symmetrically centered around outside axis hole), as shown in figure 5,
Low pressure chamber 1a includes that the first low pressure chamber 1a1 and the second low pressure chamber 1a2, high pressure chest 1b and the first low pressure chamber 1a1 are symmetrically centered around pump
Outside the axis hole of body 1, the second low pressure chamber 1a2 is centered around outside high pressure chest 1b, and one end of the first low pressure chamber 1a1 is connected to oil suction chamber 1c, the
The other end of one low pressure chamber 1a1 is connected to one end of the second low pressure chamber 1a2, and the other end of the second low pressure chamber 1a2 is with valve opening 1d's
Middle part connection, the middle part of high pressure chest 1b is connected to the middle part of valve opening 1d.After regulating valve 5 is turned on, the internal drainage of high pressure chest 1b is first
The first low pressure chamber is supplied to after valve opening 1d reaches the second low pressure chamber 1a2, then with oil liquid two strands of oil of formation of oil suction chamber 1c
1a1。
Usually, safety valve can also be installed, safety valve can be timely by oil extra in impeller pump A on impeller pump A
Liquid is discharged, and guarantees that safety open will not be influenced because oil pressure is excessively high when impeller pump A use, therefore, the impeller pump A in present embodiment
The pump housing 1 on be also provided with safety valve valve opening, safety valve valve opening is located at close to the position of high pressure chest 5, and safety valve valve opening with go out
Hydraulic fluid port 10 is connected to, and the safety valve valve opening is for installing safety valve.In addition, oil leak hole can also be opened up on impeller pump A, draining hole location
In close to high pressure chest 1b position, and oil leak hole in valve opening 1d installation spring 5a position be connected to, regulating valve 5 at work,
Spring 5a regular can be compressed and be restored, to guarantee the phenomenon that spring 5a can smoothly be moved, be prevented clamping stagnation, installation
There is oil liquid in the chamber of spring 5a, these oil liquid should increase or reduce with the movement of spring 5a, aforementioned oil leak hole energy
The function that extra oil liquid is discharged and is fed oil liquid is played, certainly, the chamber of a buffering oil liquid should be connected to beside oil leak hole
Room.
When designing the plunger 5b in present embodiment, the junction of stem 5b2 and cylindrical portion 5b1 and round plate 5b3
It is bevel structure, when the partial high pressure oil in high pressure chest 1b is leaked into low pressure chamber 1a by transporting room, high pressure oil can be on inclined-plane
It is buffered in structure, so that draining process slowly carries out, can both reduce the pressure oscillation of oil liquid, can also be reduced oily herein
The noise of liquid impact member.Specifically, above-mentioned protrusion is also in the shape of a rod, the length of stem 5b2 is 3 times of the length of protrusion.For
Avoid pump housing 1(aluminum material) directly contacted with spring 5a generate inordinate wear as shown in Fig. 7,8,9 can be valve opening 1d's
Bottom is equipped with spring base 5d, and one end of spring 5a is mounted in spring base 5d.In addition, the structure for blocking 5c in regulating valve 5 can
There are many, the simple hexagonal socket head plug of selecting structure in present embodiment is equipped at the aperture of valve opening 1d as shown in Fig. 7,8,9
The circular step that matches with the head of the hexagonal socket head plug and the screw thread to match with the bar portion of the hexagonal socket head plug, preferably
Ground, also places rubber washer on circular step, and when installation, the bar portion of the hexagon socket head cap screw passes through rubber washer and screws in valve opening 1d
In, the head of hexagonal socket head plug is then fixed on circular step.
It is mentioned in background technique, oil liquid and crankshaft oil in impeller pump A between 3 end face of crankshaft oil seal 7 and internal rotor
Oil liquid between 7 and ring-shaped step 1e of envelope cannot be smoothly discharged, and will affect the use of crankshaft oil seal 7, to solve this problem, can be with
Make following improve:
Before carefully stating improvement content, it should be noted that on the cylinder body of engine, oil sump is located at the impeller pump A pump housing 1
Bottom, the oil liquid in impeller pump A can flow back into oil sump from the bottom of the pump housing 1.
Different with traditional impeller pump to be, the edge of 1 mounting surface of the pump housing is equipped with frame, positioned at 1 lower part of the pump housing
A notch 1h is offered on frame, after pump cover 2 is installed on the mounting surface of the pump housing 1, the surface of pump cover 2 is lower than the frame of the pump housing 1, interior
Axially offer the oil scupper 3a of the equal length of multiple axis holes with internal rotor 3 on the axis hole of rotor 3, crankshaft oil seal 7 with it is interior
It is close that oil liquid between 3 end face of rotor can drain into internal rotor 3 close to the side of crankshaft oil seal 7 from internal rotor 3 by oil scupper 3a
The side of pump cover 2, then drained into outside pump cover 2 by the axis hole of pump cover 2, the pump housing 1 is mounted on finally by the notch 1h inflow of the pump housing 1
In the oil sump of bottom；By being improved to above structure in impeller pump A, can be very good crankshaft oil seal 7 and internal rotor 3
Oil liquid between end face is smoothly discharged into oil sump, so that the surge that the oil liquid forms crankshaft oil seal 7 is greatly reduced,
Reduce the adverse effect to crankshaft oil seal 7；
It is different with traditional impeller pump in addition, being also provided with inclined oil hole of air 1i on the pump housing 1, the entrance of inclined oil hole of air 1i is provided with ring
On shape step 1e, outlet is provided with the bottom of the pump housing 1, and oil liquid and impurity between crankshaft oil seal 7 and ring-shaped step 1e can pass through
Inclined oil hole of air 1i is drained into oil sump；By improving to above structure in impeller pump A, the oil liquid on ring-shaped step 1e will be with
The operating of impeller pump A constantly updated, so it is possible to prevente effectively from outmoded oil liquid and impurity corrode crankshaft oil seal 7, drop
The problem of low 7 service life of crankshaft oil seal.
Usually, the output end of crankshaft 6 is equipped with multiple splines, to enable crankshaft 6 that internal rotor 3 to be driven to rotate, interior turn
It should also be offered and each spline of crankshaft 6 multiple keyway 3b matched one by one, oil scupper 3a and keyway 3b on the axis hole of son 3
Quantity is respectively 6, and 6 oil scupper 3a and 6 keyway 3b distribute alternately；By such structure distribution, crankshaft oil seal 7 with interior turn
Oil liquid between sub 3 end faces can more sufficiently, be more evenly discharged into oil sump.
There are many shapes of oil scupper 3a, and most conventional shape is selected in present embodiment, i.e. oil scupper 3a is semicircle
Or rectangular gap slot, the depth of oil scupper 3a and the deep equality of keyway 3b, the width of oil scupper 3a opening are that keyway 3b is opened
The 1/3 of mouth width degree.
As shown in Figure 11, the bottom of ring-shaped step 1e and the pump housing 1 is mutually separated with a distance, and crankshaft oil seal 7 and annular table
Oil liquid between rank 1e is concentrated mainly on the corner of ring-shaped step 1e, extremely to oil liquid herein is smooth, quick excretion
In the oil sump of 1 bottom of the pump housing, as shown in figure 11, inclined oil hole of air 1i be can be including tilting the first inclined oil hole of air 1i1 for opening up and the
The entrance of two inclined oil hole of air 1i2, the first inclined oil hole of air 1i1 is provided with the corner of ring-shaped step 1e, the outlet of the first inclined oil hole of air 1i1 with
The entrance of second inclined oil hole of air 1i2 is connected to, and the outlet of the second inclined oil hole of air 1i2 is provided with the bottom of the pump housing 1.When work, crankshaft oil seal 7
The entrance that oil liquid between ring-shaped step 1e first passes through the first inclined oil hole of air 1i1 enters in the first inclined oil hole of air 1i1, passes sequentially through
It after first inclined oil hole of air 1i1 and the second inclined oil hole of air 1i2, is discharged, is flowed into oil sump from the outlet of the second inclined oil hole of air 1i2.
In the case where 1 wall thickness of the pump housing is certain, the excretion of oil liquid and impurity is more improved, the first inclined oil hole of air can be made
The shape of 1i1 and the second inclined oil hole of air 1i2 are designed as ellipse, compare circular inclined oil hole of air, and the inclined oil hole of air of such ellipse is cut
Area will be bigger, and the oil liquid that single can pass through will be more.
In the above-described embodiment, the position of 1 oil suction chamber 1c of the face pump housing offers oil inlet 2a, oil inlet on pump cover 2
The edge of 2a is equipped with the rubber seal of molding, and the thickness of rubber seal is equal to the frame of the pump housing 1 and the difference in height of pump cover 2.
The purpose being designed in this way is: when the rotor pump structure of the integrated water pump of present embodiment is mounted on engine cylinder body, turning
Gapless between the mounting surface of son pump A and the edge of oil inlet 2a, guarantees the leakproofness of oil inlet passage, impeller pump A at work,
Oil liquid in oil sump can first pass through oil inlet 2a and smoothly enter in the oil suction chamber 1c of the pump housing 1, then be inhaled into low pressure chamber 1a
In.
At work, the oil liquid between internal rotor 3 and outer rotor 4 can be because of the effect of centrifugal force friction 2 table of pump cover by impeller pump A
Face reduces oil consumption to mitigate such frictional force, can be on side of the pump cover 2 towards rotor chamber centered on the axis hole of pump cover 2
Symmetrically open up the oil groove of two strips, the internal rotor 3 and outer rotor 4 which is engaged with each other, two oil groove energy
Impact of the buffering oil liquid to pump cover 2 well, solves foregoing problems.
Above-described embodiment is the preferable implementation of the present invention, and in addition to this, the present invention can be realized with other way,
Do not depart from the technical program design under the premise of it is any obviously replace it is within the scope of the present invention.
In order to allow those of ordinary skill in the art more easily to understand the improvements of the present invention compared with the existing technology, this
Some attached drawings of invention and description have been simplified, and for the sake of clarity, present specification is omitted some other members
Element, the element that those of ordinary skill in the art should be aware that these are omitted also may make up the contents of the present invention.
Claims (10)
1. a kind of rotor pump structure of integrated water pump, including impeller pump (A) and it is fixed on the water pump (B) of the side impeller pump (A)；Institute
Stating impeller pump (A) includes the pump housing (1), pump cover (2), internal rotor (3), outer rotor (4) and regulating valve (5), the peace of the pump housing (1)
The valve opening (1d) of low pressure chamber (1a), high pressure chest (1b), oil suction chamber (1c) and installation and adjustment valve (5) is offered on dress face, it is described
Axis hole on the lateral surface of the pump housing (1) around the pump housing (1) offers the ring-shaped step (1e) of installation crankshaft oil seal (7)；The water
Water inlet (8), water outlet (9) and oil outlet (10) are offered on pump (B)；The oil suction chamber (1c) is connected to low pressure chamber (1a),
The oil outlet (10) is connected to high pressure chest (1b), and the valve opening (1d) is connected to low pressure chamber (1a) and high pressure chest (1b) respectively,
It is characterized by:
The regulating valve (5) includes the spring (5a) being successively set in valve opening (1d) from inside to outside, plunger (5b) and blocking
(5c), the plunger (5b) are integrally in goblet shape, the cylindrical portion (5b1) including inner end, intermediate stem (5b2), outer
The round plate (5b3) of side, one end of the spring (5a) are mounted in cylindrical portion (5b1), the stem (5b2) and valve opening
A transporting room is formed between the hole wall of (1d), the outside of the round plate (5b3) is equipped with the protrusion that can contradict blocking, institute
It states and forms a feedback oil pocket (1d1) between round plate (5b3) and blocking (5c), the cylindrical portion (5b1) can be by high pressure chest
The mouth of (1b) towards valve opening (1d) are blocked or are opened；
Be also provided on the pump housing (1) draw oilhole (1f) and feedback oilhole (1g), it is described draw oilhole (1f) be horizontally installed on it is low
The same side of chamber (1a) and high pressure chest (1b) are pressed, feedback oilhole (1g) is also located close to the position of low pressure chamber (1a), described
One end of feedback oilhole (1g) is connected to oilhole (1f) is drawn, and the other end vertical connection of feedback oilhole (1g) feeds back oil pocket
(1d1).
2. the rotor pump structure of integrated water pump according to claim 1, it is characterised in that: the feedback oilhole (1g) passes through
One round hole (11) is connected to oilhole (1f) is drawn, and the feedback oilhole (1g) passes through a stepped hole (12) and feedback oil pocket
The bore of (1d1) connection, the stepped hole (12) gradually becomes smaller from the direction that feedback oilhole (1g) leads to feedback oil pocket (1d1).
3. the rotor pump structure of integrated water pump according to claim 2, it is characterised in that: the low pressure chamber (1a) includes the
One low pressure chamber (1a1) and the second low pressure chamber (1a2), the high pressure chest (1b) are symmetrically centered around with first low pressure chamber (1a1)
Outside the axis hole of the pump housing (1), second low pressure chamber (1a2) is centered around the high pressure chest (1b) outside, first low pressure chamber (1a1)
One end be connected to oil suction chamber (1c), the other end of first low pressure chamber (1a1) is connected to one end of the second low pressure chamber (1a2),
The other end of second low pressure chamber (1a2) is connected to the middle part of valve opening (1d), the middle part of the high pressure chest (1b) and valve opening
The middle part of (1d) is connected to.
4. the rotor pump structure of integrated water pump according to claim 3, it is characterised in that: the stem (5b2) and circle
The junction of canister portion (5b1) and round plate (5b3) is bevel structure；The bottom of the valve opening (1d) is equipped with spring base
(5d), one end of the spring (5a) are mounted in spring base (5d).
5. the rotor pump structure of integrated water pump described in any one of -4 according to claim 1, it is characterised in that:
The edge of the pump housing (1) mounting surface is equipped with frame, is located on the frame of the pump housing (1) lower part and offers a notch
(1h), after the pump cover (2) is installed on the mounting surface of the pump housing (1), the surface of pump cover (2) is lower than the frame of the pump housing (1), described interior
Multiple oil scuppers (3a) with the equal length of the axis hole of internal rotor (3), the crankshaft are axially offered on the axis hole of rotor (3)
Oil liquid between oil sealing (7) and internal rotor (3) end face can drain into pump cover (2) by oil scupper (3a) outside, then pass through the pump housing (1)
Notch (1h) flows into oil sump；
It being also provided with inclined oil hole of air (1i) on the pump housing (1), the entrance of the inclined oil hole of air (1i) is provided on ring-shaped step (1e),
Outlet is provided with the bottom of the pump housing (1), and the oil liquid between the crankshaft oil seal (7) and ring-shaped step (1e) can pass through inclined oil hole of air
(1i) is drained into oil sump.
6. the rotor pump structure of integrated water pump according to claim 5, it is characterised in that: the axis hole of the internal rotor (3)
On be also provided with each spline of crankshaft (6) multiple keyways (3b) matched one by one, the oil scupper (3a) and keyway (3b)
Quantity is respectively 6, and 6 oil scuppers (3a) and 6 keyways (3b) distribute alternately.
7. the rotor pump structure of integrated water pump according to claim 6, it is characterised in that: the oil scupper (3a) is semicircle
Shape or rectangular gap slot, the depth of the oil scupper (3a) and the deep equality of keyway (3b), oil scupper (3a) opening
Width be keyway (3b) opening width 1/3.
8. the rotor pump structure of integrated water pump according to claim 7, it is characterised in that: the inclined oil hole of air (1i) includes inclining
The first inclined oil hole of air (1i1) and the second inclined oil hole of air (1i2) tiltedly opened up, the entrance of first inclined oil hole of air (1i1) are provided with annular
The outlet of the corner of step (1e), first inclined oil hole of air (1i1) is connected to the entrance of the second inclined oil hole of air (1i2), and described
The outlet of two inclined oil hole of air (1i2) is provided with the bottom of the pump housing (1), first inclined oil hole of air (1i1) and the second inclined oil hole of air (1i2)
Cross section is ellipse.
9. the rotor pump structure of the integrated water pump according to any one of claim 5-7, it is characterised in that: the pump cover
(2) position of the face pump housing (1) oil suction chamber (1c) offers oil inlet (2a) on, and the edge of the oil inlet (2a) is equipped with molding
Rubber seal, the thickness of the rubber seal is equal to the frame of the pump housing (1) and the difference in height of pump cover (2).
10. the rotor pump structure of integrated water pump according to claim 9, it is characterised in that: the pump cover (2) is towards rotor
The oil groove there are two strip is symmetrically opened up on the side of chamber centered on the axis hole of pump cover (2), which nibbles each other
The internal rotor (3) and outer rotor (4) of conjunction.
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| CN201910274376.4A CN109854933B (en) | 2019-04-08 | 2019-04-08 | Rotor pump structure of integrated water pump |
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| CN201910274376.4A CN109854933B (en) | 2019-04-08 | 2019-04-08 | Rotor pump structure of integrated water pump |
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| CN110219799A (en) * | 2019-07-05 | 2019-09-10 | 湖南机油泵股份有限公司 | A kind of engine oil pump pressure-limiting valve improving plunger wear |
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| CN109854933B (en) | 2024-03-15 |
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