CN103363275B - A kind of oil pump, engine front cover lid and motor - Google Patents
A kind of oil pump, engine front cover lid and motor Download PDFInfo
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- CN103363275B CN103363275B CN201210087031.6A CN201210087031A CN103363275B CN 103363275 B CN103363275 B CN 103363275B CN 201210087031 A CN201210087031 A CN 201210087031A CN 103363275 B CN103363275 B CN 103363275B
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- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 239000000945 filler Substances 0.000 claims abstract description 26
- 239000003921 oil Substances 0.000 claims description 343
- 238000000638 solvent extraction Methods 0.000 claims description 55
- 239000010721 machine oil Substances 0.000 claims description 35
- 230000004888 barrier function Effects 0.000 claims description 19
- 241000826860 Trapezium Species 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000006837 decompression Effects 0.000 description 6
- 238000005461 lubrication Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 239000010705 motor oil Substances 0.000 description 4
- 230000003116 impacting effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention discloses a kind of oil pump, comprise housing, rotor mechanism (2), be arranged on the rotor assembly department (11) housing being installed described rotor mechanism (2), described rotor assembly department (11) is provided with rotor holder structure (111), low pressure oil pocket (12) and high-voltage oil cavity (13) is provided with in housing, low pressure oil pocket (12) is communicated with filler opening (161), high-voltage oil cavity (13) is communicated with oil outlet (162), described rotor assembly department (11) is arranged at the end side of oil pump, described high-voltage oil cavity (13) and low pressure oil pocket (12) are arranged on the same side of rotor assembly department (11) periphery.The more compact structure of oil pump oil pump of the present invention, takes up room less.Present invention also offers the engine front cover lid of oil pump described in a kind of integrated setting, and apply the motor of above-mentioned engine front cover lid.
Description
Technical field
The present invention relates to auto parts and components, particularly a kind of oil pump, be provided with the engine front cover lid of said engine oil pump, and apply the motor of above-mentioned engine front cover lid.
Background technique
During engine operation, between the relative motion surface (as rotor shaft and main bearing, piston and cylinder wall, timing gear wheel set etc.) of driving parts, certainly lead to friction.Friction between metal surface not only can increase the power consumpiton of engine interior, make part time job surface rapid wearing, and due to fricative heat may cause part time job surface scaling loss, cause motor to operate.Therefore, for ensureing engine work, must be lubricated relative motion surface, on friction surface, namely cover one deck lubricant oil (machine oil), make the oil film that alternating floor between metal surface is thin, to reduce surface friction drag, reduce power loss, alleviate component wear, increasing service life of engine.
During engine running, because the operating conditions of each moving parts of motor is different, required sae number is also different, thus will correspondingly take different lubricating systems.The load that the places such as rotor shaft main bearing, connecting rod bearing and camshaft bearing bear and speed of related movement are comparatively large, to need oil delivery with the certain pressure of the mode of pressure lubrication, in rubbing surface gap, to form oil film and ensure lubrication.The effect of oil pump is exactly for carrying out pressure lubrication and ensureing oil circulation and set up enough oil pressure, thus makes motor obtain necessary lubrication.
On automobile, the oil pump of motor is generally rotor pump, and rotor pump comprises internal rotor, external rotor, housing, internal rotor and external rotor eccentric setting in pump case, be provided with low pressure oil pocket and high-voltage oil cavity in housing, low pressure oil pocket is communicated with filler opening, and high-voltage oil cavity is communicated with oil outlet.Drive internal rotor to rotate during engine operation, internal rotor drives external rotor to rotate, and is rotated, is sucked by the machine oil of low pressure from filler opening, discharge after becoming the machine oil of high pressure from oil outlet by the cooperation of inner and outer rotors.But in the machine oil pump structure of prior art, low pressure oil pocket and the high-voltage oil cavity of oil pump are positioned at the relative both sides of rotor mechanism, and structure owes compact, make the volume of oil pump become comparatively large, take up room large.
Summary of the invention
The present invention solves above-mentioned fuel pump structure to owe compact, cause the large problem that takes up room, a kind of oil pump be provided, this fuel pump structure is compacter, take up room little.
The object of the invention is to be achieved through the following technical solutions: a kind of oil pump, comprise housing, rotor mechanism, be arranged on rotor assembly department housing being installed described rotor mechanism, described rotor assembly department is provided with rotor holder structure, described housing is provided with the filler opening flowed into for machine oil and the oil outlet flowed out for machine oil, low pressure oil pocket and high-voltage oil cavity is provided with in housing, low pressure oil pocket is communicated with filler opening, high-voltage oil cavity is communicated with oil outlet, described low pressure oil pocket comprises low pressure oil-feed main oil gallery, described high-voltage oil cavity comprises the fuel-displaced main oil gallery of high pressure, described rotor assembly department is arranged at the end side of oil pump, described high-voltage oil cavity and low pressure oil pocket are arranged on the same side of rotor mechanism periphery.
Further, also comprise the pressure release oil buffer cavity between low pressure oil pocket and high-voltage oil cavity, described high-voltage oil cavity and low pressure oil pocket and pressure release oil buffer cavity are arranged on the same side of rotor mechanism periphery.
Further, also comprise the current limliting wall be arranged in the oily buffer cavity of pressure release, pressure release oil buffer cavity is separated into pressure release oil outflow buffer cavity to described current limliting wall and pressure release oil enters buffer cavity, and described pressure release oil outflow buffer cavity and pressure release oil enter buffer cavity and is interconnected.
Further, the oil pump cover that described housing comprises oil pump casing portion and coordinates with described oil pump casing portion, described filler opening and oil outlet are arranged on described oil pump cover;
Described current limliting wall comprises the oil pump cover current limliting wall be arranged on oil pump cover, and is arranged on the oil pump casing portion current limliting wall in oil pump casing portion; Described oil pump cover current limliting wall is provided with and is communicated with described pressure release oil outflow buffer cavity and the oily pressure release oil buffer cavity through hole entering buffer cavity of pressure release.
Further, described pressure release oil flows out in buffer cavity the pressure relief opening being also provided with and changing described pressure release oil and flow to, and described pressure relief opening comprises the first pressure relief opening and the second pressure relief opening that are symmetrically set.
Further, the section shape of described first pressure relief opening and the second pressure relief opening is right-angled trapezium, and one end of described first pressure relief opening is provided with opening.
Further, also comprise cooperation and be installed on the partitioning wall of will keep apart between high-voltage oil cavity and low pressure oil pocket between described high-voltage oil cavity and low pressure oil pocket.
Further, described partitioning wall comprises the main part being arranged on oil outlet edge, and the extension part extended to form to rotor assembly department by described main part.
Further, described extension part is arranged towards the lopsidedness of high-voltage oil cavity.
Further, described partitioning wall is provided with partitioning wall bolt hole, described partitioning wall bolt hole is arranged on the one end near described rotor assembly department.
Further, the width of described partitioning wall is 1.5 times of partitioning wall bolt hole maximum diameter of hole to 2 times.
Further, the barrier be arranged between pressure release oil buffer cavity and low pressure oil pocket is also comprised.
Further, described barrier is arranged at a side of described filler opening, and parallel with the inflow direction of machine oil.
Further, the top end face of described barrier is the arc surface of the rotation tangent direction arc transition along described rotor mechanism.
Present invention also offers a kind of engine front cover lid, described engine front cover covers and is wholely set above-mentioned oil pump.
Present invention also offers a kind of motor applying above-mentioned engine front cover lid.
The present invention is by being arranged on the same side of rotor mechanism periphery by described high-voltage oil cavity and low pressure oil pocket, make the more compact structure of oil pump, the volume of oil pump is less, takes up room less, the miniaturization of motor being conducive to oil pump and being installed together with oil pump.
Accompanying drawing explanation
Fig. 1 is the front view of the oil pump cover of the embodiment of the present invention, and in figure shown in arrow is the flow direction of machine oil.
Fig. 2 is the front view in the oil pump casing portion of the embodiment of the present invention.
Fig. 3 is the stereogram of the engine oil pump cover of the embodiment of the present invention.
Fig. 4 is that the engine front cover lid of the embodiment of the present invention installs decomposing schematic representation.
Embodiment
In order to make technical problem solved by the invention, technological scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figures 1 to 4, it is a kind of oil pump of the embodiment of the present invention, described oil pump comprises housing, rotor mechanism 2, be arranged on the rotor assembly department 11 housing being installed described rotor mechanism 2, described rotor assembly department 11 is provided with rotor holder structure 111, described housing is provided with the filler opening 161 flowed into for machine oil and the oil outlet 162 flowed out for machine oil, low pressure oil pocket 12 and high-voltage oil cavity 13 is provided with in housing, low pressure oil pocket 12 is communicated with filler opening 161, high-voltage oil cavity 13 is communicated with oil outlet 162, described low pressure oil pocket 12 comprises low pressure oil-feed main oil gallery 121, described high-voltage oil cavity 13 comprises the fuel-displaced main oil gallery 131 of high pressure, state the end side that rotor assembly department 11 is arranged at oil pump, described high-voltage oil cavity 13 and low pressure oil pocket 12 are arranged on the same side of rotor assembly department 11 periphery.
The embodiment of the present invention, by described high-voltage oil cavity and low pressure oil pocket being arranged on the same side of rotor mechanism periphery, making the more compact structure of oil pump, takes up room less, the miniaturization of motor being conducive to oil pump and being installed together with oil pump.
Preferably, described oil pump is provided with to coordinate and is installed on the partitioning wall of will keep apart between high-voltage oil cavity 13 and low pressure oil pocket 12 between high-voltage oil cavity 13 and low pressure oil pocket 12, pressure release oil buffer cavity 14 is provided with between described partitioning wall and low pressure oil pocket 12, current limliting wall and barrier 41, described current limliting wall is arranged in described pressure release oil buffer cavity 14, pressure release oil buffer cavity 14 is separated into pressure release oil outflow buffer cavity 141 to described current limliting wall and pressure release oil enters buffer cavity 142, described pressure release oil outflow buffer cavity 141 and pressure release oil enter buffer cavity 142 and are interconnected, described barrier 41 is arranged on pressure release oil and flows out between buffer cavity 141 and low pressure oil pocket 12, described high-voltage oil cavity 13, low pressure oil pocket 12 and pressure release oil buffer cavity 14 are arranged on the same side of rotor assembly department 11 periphery, namely away from the side of described rotor assembly department 11.The oil pump cover 16 that described housing comprises oil pump casing portion 15 and coordinates with described oil pump casing portion 15, described filler opening 161 and oil outlet 162 are arranged on described oil pump cover 16.
The partitioning wall of keeping apart between high-voltage oil cavity and low pressure oil pocket oozes out to prevent the oil of high-voltage oil cavity toward low pressure oil pocket further by arranging between high-voltage oil cavity and low pressure oil pocket by the embodiment of the present invention, reduce the pressure loss of high-voltage oil cavity, improve the efficiency of pump oil.Again by arranging pressure release oil buffer cavity between described low pressure oil pocket and high-voltage oil cavity, change the flow direction of pressure release oil and reduce pressure and the flow velocity of pressure release oil, make pressure release oil flow more stable, also by after barrier be set between described low pressure oil pocket and pressure release oil buffer cavity make pressure release oil stable along barrier smooth ingress engine oil pump oil-feed main oil gallery, the low pressure oil preventing pressure release oil from impacting filler opening inflow produces unnecessary eddy current, and then improves the efficiency of pump oil.
Described current limliting wall one end connects the bottom of rotor holder structure 111, and the other end connects partitioning wall.Described rotor holder structure 111, current limliting wall, partitioning wall jointly form pressure release oil and enter buffer cavity 142.Described current limliting wall, partitioning wall, barrier 41 jointly form pressure release oil and flow out buffer cavity 141.Described current limliting wall is provided with and is communicated with described pressure release oil outflow buffer cavity 141 and the oily pressure release oil buffer cavity through hole 421 entering buffer cavity 142 of pressure release.
Because pressure release oil pressure is larger than the machine oil flow velocity flowed into from filler opening 16, pressure is high, if the low pressure oil-feed main oil gallery 121 of oil pump directly poured into by pressure release oil, the machine oil main flow direction of low pressure oil-feed main oil gallery 121 can be caused to be hit, form unnecessary eddy current, reduce pump oil efficiency.In order to reduce the impact force of described pressure release oil to machine oil in low pressure oil-feed main oil gallery 121, reduce eddy current, improve pump oil efficiency, described barrier 41 is arranged at a side of described filler opening 161, and parallel with the inflow direction of machine oil.In order to make pressure release machine oil along the flowing of rotor turns tangent direction further, improve pump oil efficiency, the top end face of described barrier 41 is the arc surface of the rotation tangent direction arc transition along described rotor mechanism 2.
Described low pressure oil-feed main oil gallery 121 and the fuel-displaced main oil gallery 131 of high pressure are arranged on oil pump cover 16.Described current limliting wall comprises the oil pump cover current limliting wall 422 be arranged on oil pump cover 16, and is arranged on the oil pump casing portion current limliting wall 423 in oil pump casing portion 15; Described pressure release oil buffer cavity through hole 421 is arranged on oil pump cover current limliting wall 422.
Described partitioning wall comprises the first partitioning wall 31 be arranged on oil pump cover 16, and correspondence is arranged on the second partitioning wall 32 in oil pump casing portion 15, and described first partitioning wall 31 closely cooperates with described second partitioning wall 32.Described first partitioning wall 31 comprises the first main part 311 being arranged on oil outlet 162 edge, and the first extension part 312 extended to form to rotor assembly department 11 by described first main part 311.Described second partitioning wall 32 comprises the second main part 321 being arranged on oil outlet 162 edge, and the second extension part 322 extended to form to rotor assembly department 11 by described second main part 321.
Preferably, described first extension part 312 and the second extension part 322 are arranged towards the lopsidedness of high-voltage oil cavity 13, are beneficial to the guiding flowed to the machine oil in high-voltage oil cavity.
Tightr in order to make the first partitioning wall 31 and the second partitioning wall 32 fit, the first isolation surface 313 that described first partitioning wall 31 is level and smooth, described second partitioning wall 32 has the second level and smooth isolation surface 323 coordinated with the first isolation surface 313.
In order to increase the impacting force between the first partitioning wall 31 and the second partitioning wall 32, prevent oil impregnate further, described first partitioning wall 31 and the second partitioning wall 32 are provided with the partitioning wall bolt hole matched, described partitioning wall bolt hole is arranged on the one end near described rotor assembly department 11, described partitioning wall bolt hole comprises the first partitioning wall bolt hole 314 be arranged on the first partitioning wall 31, and is arranged on the second partitioning wall bolt hole 324 on the second partitioning wall 32.More even in order to make described first partitioning wall 31 and the second partitioning wall 32 be subject to impacting force, can multiple bolt hole be set at the diverse location around hydraulic fluid port 162, be more conducive to realizing low pressure oil pocket 12 and the isolation completely of high-voltage oil cavity 13, prevents oil impregnate phenomenon.
The width of described partitioning wall, wider than other surface of contact, is preferably 1.5 times to 2 times of partitioning wall bolt hole maximum diameter of hole.Described partitioning wall bolt hole is arranged in the middle of partitioning wall, is preferably arranged on the extension part of partitioning wall, partitioning wall bolt hole is arranged in the side near rotor assembly department 11, makes the global stability of oil pump better like this.
Further, described pressure release oil flows out in buffer cavity 141 pressure relief opening being also provided with and changing pressure release oil and flow to, described pressure relief opening is arranged on oil pump cover 16, described pressure release oil flows out in buffer cavity 141 and is provided with decompression mechanism 6, described decompression mechanism 6 comprises pressure-limit valve 61, limiting valve spring mechanism 62 and spring seat 63, pressure relief opening ensures that decompression mechanism 6 in axial direction moves smooth and easy when draining, not clamping stagnation.
Described pressure relief opening is symmetricly set on the both sides of decompression mechanism 6, described pressure relief opening comprises the first pressure relief opening 1411 and the second pressure relief opening 1412, described first pressure relief opening 1411 and the second pressure relief opening 1412 are symmetrical arranged relative to the center line of described pressure release oil buffer cavity through hole 421, in the present embodiment, the section shape of described first pressure relief opening 1411 and the second pressure relief opening 1412 is right-angled trapezium, and one end of described first pressure relief opening 1411 is provided with opening.The section shape of described first pressure relief opening 1411 and the second pressure relief opening 1412 can be also other shapes, if any the circle of opening, and triangle or other shapes.
In the present embodiment, the external rotor 22 that described rotor mechanism 2 comprises internal rotor 21, coordinates with described internal rotor 21, internal rotor 21 is fixed on rotor shaft, described internal rotor 21 is driven by rotor shaft, as shown in Figure 4, the inner ring that described internal rotor 21 and rotor shaft assemble is provided with flat department 211, and described internal rotor is fixed on rotor shaft by key or pin, described external rotor 22 is free to rotate in housing, has certain throw of eccentric between internal rotor 21 and external rotor 22.When internal rotor 21 rotates, external rotor 22 is driven to rotate.Internal rotor 214 has 7 double wedges, external rotor 22 has 8 recessed teeth, like this, and internal rotor 21 and the nonsynchronous in the same way rotation of external rotor 22 under the driving of rotor shaft, the more more compact structure that can make oil pump of double wedge, fuel delivery is large, and fuel feeding is even, and noise is little, oil suction degree of vacuum is high, to ensure that machine oil is at lubrication system internal circulation flow, when rotor tooth form profile design must make rotor forward any angle to, the tooth form line of internal rotor 21 and each tooth of external rotor 22 can form point cantact mutually.In Fig. 1 shown in arrow is the flow direction of machine oil, at the low pressure oil pocket 12 be communicated with filler opening 161, because rotor mechanism 2 throws off engagement, volume increases gradually, produce vacuum, machine oil is inhaled into, rotor mechanism 2 continues to rotate, machine oil quilt is until the side of oil outlet 162, at this time, rotor just in time enters engagement, oil pressure is raised, machine oil is extruded between cog, enter into high-voltage oil cavity 13 respectively and pressure release oil enters buffer cavity 142, the machine oil entering into high-voltage oil cavity 13 is flowed out by oil outlet 162, flow out in buffer cavity 141 at pressure release oil and be provided with decompression mechanism 6, described decompression mechanism 6 comprises pressure-limit valve 61, limiting valve spring mechanism 62 and spring seat 63, if the pressure of machine oil is excessive, then oil pressure makes pressure-limit valve 61 open, part machine oil enters buffer cavity 142 from pressure release oil and flows out to pressure release oil outflow buffer cavity 141, described pressure release oil enters buffer cavity 142 and pressure release oil flows out buffer cavity 141 pairs of double bufferings of pressure release oil formation, change the flow direction of pressure release oil and reduce pressure and the flow velocity of pressure release oil, enter into the oily flow direction changing again pressure release oil through pressure relief opening further of pressure release that pressure release oil flows out buffer cavity 141, make pressure release oil flow more stable, the runner of described pressure release oil between barrier 41 and current limliting wall, because barrier 41 is parallel with the machine oil inflow direction of filler opening 161, therefore pressure release oil can not produce greater impact to the machine oil of filler opening 161, the pressure release oil flowed out enters next circulation together with the machine oil from filler opening 161.In the flow process of machine oil, because there is the existence of partitioning wall, making when pressure-limit valve 61 is not opened, is completely isolated between high-voltage oil cavity 13 and low pressure oil pocket 12, can prevent the pressure loss because high-voltage oil cavity 13 oil impregnate causes, and improves the efficiency of pump oil.
Present invention also offers a kind of engine front cover lid applying said engine oil pump, described engine front cover covers and is wholely set above-mentioned oil pump.As shown in Figure 4, it is the assembling schematic diagram of the engine front cover lid of the embodiment of the present invention, described engine front cover lid comprises front cover body 5, the organic oil pump of integrated setting on described front cover body 5, particularly, described oil pump comprises housing, rotor mechanism 2, be arranged on the rotor assembly department 11 housing being installed described rotor mechanism 2, described rotor assembly department 11 is provided with rotor holder structure 111, described housing is provided with the filler opening 161 flowed into for machine oil and the oil outlet 162 flowed out for machine oil, low pressure oil pocket 12 and high-voltage oil cavity 13 is provided with in housing, low pressure oil pocket 12 is communicated with filler opening 161, high-voltage oil cavity 13 is communicated with oil outlet 162, described low pressure oil pocket 12 comprises low pressure oil-feed main oil gallery 121, described high-voltage oil cavity 13 comprises the fuel-displaced main oil gallery 131 of high pressure, described oil pump is provided with to coordinate and is installed on the partitioning wall of will keep apart between high-voltage oil cavity 13 and low pressure oil pocket 12 between high-voltage oil cavity 13 and low pressure oil pocket 12, pressure release oil buffer cavity 14 is provided with between described partitioning wall and low pressure oil pocket 12, current limliting wall and barrier 41, described current limliting wall is arranged in described pressure release oil buffer cavity 14, pressure release oil buffer cavity 14 is separated into pressure release oil outflow buffer cavity 141 to described current limliting wall and pressure release oil enters buffer cavity 142, described pressure release oil outflow buffer cavity 141 and pressure release oil enter buffer cavity 142 and are interconnected, described barrier 41 is arranged on pressure release oil and flows out between buffer cavity 141 and low pressure oil pocket 12, described rotor assembly department 11 is arranged at the end side of oil pump, described high-voltage oil cavity 13, low pressure oil pocket 12 and pressure release oil buffer cavity 14 are arranged on the same side of rotor assembly department 11 periphery, namely away from the side of described rotor assembly department 11.
The engine front cover lid of the embodiment of the present invention and described oil pump integrated setting, be conducive to the structure simplifying motor, and facilitate the maintenance dismounting of oil pump.
The embodiment of the present invention additionally provides a kind of motor applying above-mentioned engine front cover lid, and described motor comprises cylinder cap, is connected to the cylinder body of cylinder cap bottom, and is arranged on the engine front cover lid of cylinder cap and cylinder body front end, and described cylinder base connects oil sump.Described engine front cover covers integrated setting above-mentioned oil pump, described engine front cover lid comprises front cover body 5, the organic oil pump of integrated setting on described front cover body 5, particularly, described oil pump comprises housing, rotor mechanism 2, be arranged on the rotor assembly department 11 housing being installed described rotor mechanism 2, described rotor assembly department 11 is provided with rotor holder structure 111, described housing is provided with the filler opening 161 flowed into for machine oil and the oil outlet 162 flowed out for machine oil, low pressure oil pocket 12 and high-voltage oil cavity 13 is provided with in housing, low pressure oil pocket 12 is communicated with filler opening 161, high-voltage oil cavity 13 is communicated with oil outlet 162, described low pressure oil pocket 12 comprises low pressure oil-feed main oil gallery 121, described high-voltage oil cavity 13 comprises the fuel-displaced main oil gallery 131 of high pressure, described oil pump is provided with to coordinate and is installed on the partitioning wall of will keep apart between high-voltage oil cavity 13 and low pressure oil pocket 12 between high-voltage oil cavity 13 and low pressure oil pocket 12, pressure release oil buffer cavity 14 is provided with between described partitioning wall and low pressure oil pocket 12, current limliting wall and barrier 41, described current limliting wall is arranged in described pressure release oil buffer cavity 14, pressure release oil buffer cavity 14 is separated into pressure release oil outflow buffer cavity 141 to described current limliting wall and pressure release oil enters buffer cavity 142, described pressure release oil outflow buffer cavity 141 and pressure release oil enter buffer cavity 142 and are interconnected, described barrier 41 is arranged on pressure release oil and flows out between buffer cavity 141 and low pressure oil pocket 12, described rotor assembly department 11 is arranged at the end side of oil pump, described high-voltage oil cavity 13, low pressure oil pocket 12 and pressure release oil buffer cavity 14 are arranged on the same side of rotor assembly department 11 periphery, namely away from the side of described rotor assembly department 11.The oil pump cover 16 that described housing comprises oil pump casing portion 15 and coordinates with described oil pump casing portion 15, described filler opening 161 and oil outlet 162 are arranged on described oil pump cover 16.
The engine front cover lid of the motor of the embodiment of the present invention and described oil pump integrated setting, be conducive to the structure simplifying motor, and facilitate the maintenance dismounting of oil pump.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. an oil pump, comprise housing, rotor mechanism (2), be arranged on the rotor assembly department (11) housing being installed described rotor mechanism (2), described rotor assembly department (11) is provided with rotor holder structure (111), described housing is provided with the filler opening (161) flowed into for machine oil and the oil outlet (162) flowed out for machine oil, low pressure oil pocket (12) and high-voltage oil cavity (13) is provided with in housing, low pressure oil pocket (12) is communicated with filler opening (161), high-voltage oil cavity (13) is communicated with oil outlet (162), described low pressure oil pocket (12) comprises low pressure oil-feed main oil gallery (121), described high-voltage oil cavity comprises the fuel-displaced main oil gallery of high pressure (131), it is characterized in that, described rotor assembly department (11) is arranged at the end side of oil pump, described high-voltage oil cavity (13) and low pressure oil pocket (12) are arranged on the same side of rotor assembly department (11) periphery, also comprise pressure release oil buffer cavity (14) be positioned between low pressure oil pocket (12) and high-voltage oil cavity (13), described high-voltage oil cavity (13) and low pressure oil pocket (12) and the oily buffer cavity (14) of pressure release are arranged on the same side of rotor mechanism (2) periphery, also comprise the current limliting wall be arranged in pressure release oil buffer cavity (14), pressure release oil buffer cavity (14) is separated into pressure release oil outflow buffer cavity (141) to described current limliting wall and pressure release oil enters buffer cavity (142), and described pressure release oil outflow buffer cavity (141) and pressure release oil enter buffer cavity (142) and is interconnected.
2. oil pump according to claim 1, it is characterized in that, the oil pump cover (16) that described housing comprises oil pump casing portion (15) and coordinates with described oil pump casing portion (15), described filler opening (161) and oil outlet (162) are arranged on described oil pump cover (16);
Described current limliting wall comprises the oil pump cover current limliting wall (422) be arranged on oil pump cover (16), and is arranged on oil pump casing portion current limliting wall (423) in oil pump casing portion (15);
Described oil pump cover current limliting wall (422) is provided with and is communicated with described pressure release oil and flows out oily buffer cavity through hole (421) of pressure release that buffer cavity (141) and pressure release oil enter buffer cavity (142).
3. oil pump according to claim 1, it is characterized in that, described pressure release oil flows out in buffer cavity (141) pressure relief opening being also provided with and changing pressure release oil and flow to, and described pressure relief opening comprises symmetrically arranged first pressure relief opening (1411) and the second pressure relief opening (1412).
4. oil pump according to claim 3, is characterized in that, the section shape of described first pressure relief opening (1411) and the second pressure relief opening (1412) is right-angled trapezium, and one end of described first pressure relief opening (1411) is provided with opening.
5. oil pump according to claim 1, is characterized in that, also comprises cooperation and is installed on the partitioning wall of will keep apart between high-voltage oil cavity (13) and low pressure oil pocket (12) between high-voltage oil cavity (13) and low pressure oil pocket (12).
6. oil pump according to claim 5, is characterized in that, described partitioning wall comprises the main part being arranged on oil outlet (162) edge, and the extension part extended to form to rotor assembly department by described main part.
7. oil pump according to claim 6, is characterized in that, described extension part is arranged towards the lopsidedness of high-voltage oil cavity (13).
8. oil pump according to claim 5, is characterized in that, described partitioning wall is provided with partitioning wall bolt hole, and described partitioning wall bolt hole is arranged on the one end near described rotor assembly department (11).
9. oil pump according to claim 8, is characterized in that, the width of described partitioning wall is 1.5 times of partitioning wall bolt hole maximum diameter of hole to 2 times.
10. oil pump according to claim 1, is characterized in that, also comprises the barrier be arranged between pressure release oil buffer cavity and low pressure oil pocket.
11. oil pump according to claim 10, is characterized in that, described barrier (41) is arranged at a side of described filler opening (161), and parallel with the inflow direction of machine oil.
12. oil pump according to claim 10, is characterized in that, the top end face of described barrier (41) is the arc surface of the rotation tangent direction arc transition along described rotor mechanism (2).
13. 1 kinds of engine front cover lids, is characterized in that, described engine front cover covers the oil pump be integrally formed with as described in any one of claim 1-12.
14. 1 kinds of motors, is characterized in that, described motor is provided with engine front cover lid as claimed in claim 13.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210087031.6A CN103363275B (en) | 2012-03-29 | 2012-03-29 | A kind of oil pump, engine front cover lid and motor |
| US14/380,053 US9512837B2 (en) | 2012-03-29 | 2013-03-28 | Oil pump, engine cover and engine comprising the same |
| EP13769950.0A EP2831488B1 (en) | 2012-03-29 | 2013-03-28 | Oil pump, engine cover and engine comprising the same |
| PCT/CN2013/073358 WO2013143479A1 (en) | 2012-03-29 | 2013-03-28 | Oil pump, engine cover and engine comprising the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210087031.6A CN103363275B (en) | 2012-03-29 | 2012-03-29 | A kind of oil pump, engine front cover lid and motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103363275A CN103363275A (en) | 2013-10-23 |
| CN103363275B true CN103363275B (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210087031.6A Active CN103363275B (en) | 2012-03-29 | 2012-03-29 | A kind of oil pump, engine front cover lid and motor |
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| CN (1) | CN103363275B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106907564A (en) * | 2017-05-08 | 2017-06-30 | 湖南机油泵股份有限公司 | A kind of machine oil refrigerating module housing being improved to drain path |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09203308A (en) * | 1996-01-26 | 1997-08-05 | Kawasaki Heavy Ind Ltd | Oil pump |
| US5685266A (en) * | 1995-06-07 | 1997-11-11 | Brunswick Corporation | Ring gear pumps |
| CN201237072Y (en) * | 2008-07-12 | 2009-05-13 | 奇瑞汽车股份有限公司 | Oil pump |
| CN101915137A (en) * | 2010-06-17 | 2010-12-15 | 重庆长安汽车股份有限公司 | Integrated structure of engine front housing and oil pump assembly |
| CN201892018U (en) * | 2010-11-25 | 2011-07-06 | 湖南机油泵股份有限公司 | Reflux pressure limiting rotor oil pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5685266A (en) * | 1995-06-07 | 1997-11-11 | Brunswick Corporation | Ring gear pumps |
| JPH09203308A (en) * | 1996-01-26 | 1997-08-05 | Kawasaki Heavy Ind Ltd | Oil pump |
| CN201237072Y (en) * | 2008-07-12 | 2009-05-13 | 奇瑞汽车股份有限公司 | Oil pump |
| CN101915137A (en) * | 2010-06-17 | 2010-12-15 | 重庆长安汽车股份有限公司 | Integrated structure of engine front housing and oil pump assembly |
| CN201892018U (en) * | 2010-11-25 | 2011-07-06 | 湖南机油泵股份有限公司 | Reflux pressure limiting rotor oil pump |
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| CN103363275A (en) | 2013-10-23 |
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