CN103527913A - Oil pump - Google Patents
Oil pump Download PDFInfo
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- CN103527913A CN103527913A CN201310470255.XA CN201310470255A CN103527913A CN 103527913 A CN103527913 A CN 103527913A CN 201310470255 A CN201310470255 A CN 201310470255A CN 103527913 A CN103527913 A CN 103527913A
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Abstract
The invention discloses an oil pump used for lubricating a double-row type engine. The oil pump comprises an oil inlet, a first oil outlet and a second oil outlet. The first oil outlet and the second oil outlet are distributed in the two sides of the oil pump and correspondingly lubricate two rows of air cylinders of the double-row type engine respectively. According to the designed oil pump, pumped machine oil can flow out of the two oil outlets, so that the two rows of air cylinders of the double-row engine are respectively lubricated. Therefore, the double-row engine can be lubricated with only one oil pump. Compared with the background technology, the oil pump has the advantages that the one oil pump is easy to arranged in the limited space of the engine, cost can also be reduced, and the development requirement for miniaturizing the engine is met; the two oil outlets of the one oil pump can synchronously pump the machine oil, so that the two rows of air cylinder are uniform in working condition, and performance of the engine is fully brought into play.
Description
Technical field
The present invention relates to pump housing technical field, particularly a kind of oil pump.
Background technique
Oil pump can provide the pressure oil with certain pressure, forces fuel feeding, thereby reach lubricated effect with the friction surface to each parts of motor.
Existing fuel pump structure is one-in-and-one-out structure, and oil pump only arranges an import and an outlet, can meet general engine lubrication demand.And for double-row type motor, because it has two row cylinders, the oil pump of one-in-and-one-out structure can only be lubricated a row cylinder, therefore double-row type motor needs two oil pump, respectively two row cylinders are lubricated.
There is following technical problem in this structure:
The first, two oil pump are in the limited space of motor, difficult arrangement, and cost is also relatively high; And along with miniaturization development trend, this kind of arrangement can not satisfy the demands;
The second, two oil pump are difficult to guarantee lubricated time, synchronously carry out, and cause the operating mode of two row cylinders inconsistent, affect the performance of engine performance.
In view of this, how making oil pump successfully be arranged in double-row type motor, and realize synchronous lubricating, is those skilled in the art's technical problems urgently to be resolved hurrily.
Summary of the invention
For solving the problems of the technologies described above, object of the present invention is for providing a kind of oil pump, and this oil pump can save arrangement space, reduce costs, and can guarantee two row cylinders of synchronous lubricated double-row type motor simultaneously.
This oil pump, for lubricated double-row type motor, described oil pump comprises filler opening, and the first oil outlet and the second oil outlet; Described the first oil outlet and described the second oil outlet are distributed in the both sides of described oil pump, respectively two row cylinders of corresponding lubricated described double-row type motor.
The oil pump so designing, its machine oil pumping can flow out from two hydraulic fluid ports, thus for two row cylinders of paired engine are lubricated respectively, an oil pump can realize lubricating paired engine.Compared to background technique, there is following technique effect:
The first, in the limited space of motor, an oil pump is easy to arrange, cost is also minimized, and meets motor miniaturization growth requirement;
The second, two oil outlets of an oil pump can be simultaneously, synchronously pump machine oil, make two lubricated row cylinders there is consistent operating mode, thereby guarantee giving full play to of engine performance.
Preferably, described oil pump is inner forms oil suction chamber and goes out oil pocket; Described oil suction chamber and described in go out the both sides that oil pocket is divided into described oil pump; Described filler opening is located at described oil suction chamber place; And described oil-feed pump is provided with the first flowline and the second flowline:
Described in one end of described the first flowline is communicated to, go out oil pocket place, and around the pump cover of described oil pump and extend to and described oil suction chamber homonymy, described the first oil outlet is located at the other end of described the first flowline;
Described the second flowline with described in go out oil pocket homonymy, described in one end of described the second flowline is communicated with, go out oil pocket, described the second oil outlet is located at the other end.
Preferably, described oil pump be provided with at least two with described in go out the pressure-limit valve that oil pocket is communicated with.
Preferably, described pressure-limit valve is all located at described the first flowline.
Preferably, described the first oil outlet is symmetrical with the center line of the relative described oil pump of described the second oil outlet.
Preferably, the surface of the pump cover of described oil pump is provided with stiffening rib.
Preferably, described oil pump is the gear type oil pump with gear chamber, is provided with driving gear and the driven gear of outer gearing in described gear chamber, and the driven gear shaft of described driven gear is provided with external shift fork.
Preferably, described external shift fork has the interface being connected with oil transfer pump.
Accompanying drawing explanation
Fig. 1 is the perspective view of a kind of specific embodiment of oil pump provided by the present invention;
Fig. 2 is the rear view of oil pump in Fig. 1;
Fig. 3 is that in Fig. 2, oil pump is taken off the schematic diagram after pump cover;
Fig. 4 is that the A-A of Fig. 2 is to sectional view.
In Fig. 1-4:
11 pump housings, 11a oil suction chamber, 11b go out oil pocket, 111 first flowlines, 111a the first oil outlet, 112 second flowlines, 112a the second oil outlet, 113 filler openings, 114 external shift forks, 12 pump covers, 121 stiffening ribs, 13 actuation gears, 14 pressure-limit valves, 151 driving gears, 152 driven gears, 161 driving gear shafts, 162 driven gear shafts, 17 hexagon head bolts, 18 linings, 19 straight pins
Embodiment
In order to make those skilled in the art understand better technological scheme of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 1, Fig. 1 is the perspective view of a kind of specific embodiment of oil pump provided by the present invention.
Oil pump in this embodiment, for lubricated double-row type motor, double-row type motor has two row cylinders.This oil pump comprises filler opening 113, and the first oil outlet 111a and the second oil outlet 112a, and this oil pump is " one enters scene 2 " structure.Machine oil is in filler opening 113 enters the pump housing 11 of oil pump, and the machine oil pumping flows out through the first oil outlet 111a and the second oil outlet 112a.Two oil outlets of this oil pump are distributed in the both sides of oil pump, so that correspond respectively to two row cylinders of double-row type motor, thereby be communicated with the Oil passage of cylinder, the first oil outlet 111a row cylinder of lubricating engine specially, the second oil outlet 112a is another row cylinder of lubricating engine specially.
The oil pump so designing, its machine oil pumping can flow out from two hydraulic fluid ports, thus for two row cylinders of paired engine are lubricated respectively, an oil pump can realize lubricating paired engine.Compared to background technique, there is following technique effect:
The first, in the limited space of motor, an oil pump is easy to arrange, cost is also minimized, and meets motor miniaturization growth requirement;
The second, two oil outlets of an oil pump can be simultaneously, synchronously pump machine oil, make two lubricated row cylinders there is consistent operating mode, thereby guarantee giving full play to of engine performance.
Please refer to Fig. 2-3, Fig. 2 is the rear view of oil pump in Fig. 1; Fig. 3 is that in Fig. 2, oil pump is taken off the schematic diagram after pump cover.
The inside of oil pump can form oil suction chamber 11a and go out oil pocket 11b, and this embodiment be take gear type oil pump and described as example.As Figure 1-3, oil pump comprises pump cover 12 and the pump housing 11, and after pump cover 12 and the pump housing 11 docking involutions, oil pump is inner forms airtight cavity, thereby forms airtight gear chamber.Driving gear 151 and driven gear 152 that outer gearing is installed in gear chamber, the pump housing 11 is provided with actuation gear 13, and for driving driving gear 151 to rotate, in Fig. 1, actuation gear 13 and pump cover 12 are divided into the both sides, front and back of the pump housing 11.In gear chamber, the side that driving gear 151 and driven gear 152 depart from gradually forms oil suction chamber 11a, and in Fig. 3, driving gear 151 rotates counterclockwise, driven gear 152 is when clockwise rotate, and the left chamber shown in it is oil suction chamber 11a; Driving gear 151 forms oil pocket 11b, as shown in Figure 3 right chamber with the side that driven gear 152 meshes gradually.
This oil pump working principle is: when gear rotates by direction as shown, the volume of oil suction chamber 11a increases because the gear teeth depart from engagement gradually, in oil suction chamber 11a, produce certain vacuum, machine oil is inhaled into oil suction chamber 11a from oil sump through filler opening 113, and the gear teeth that are rotated again subsequently take out oil pocket 11b to.The volume that goes out oil pocket 11b reduces because the gear teeth progress into engagement, and engine oil pressure is raise, and machine oil is pressed into the Oil passage on engine body through oil outlet.
Said engine oil pump, its oil suction chamber 11a and go out the both sides (arranged on left and right sides of oil pump in Fig. 2,3) that oil pocket 11b is divided into oil pump.113 of the filler openings of oil pump are located at the oil suction chamber 11a place of oil pump, substantially dock with oil suction chamber 11a, in addition, oil pump is provided with the first flowline 111 and the second flowline 112, the first flowline 111 and the second flowline 112 are integrated on the pump housing 11 of oil pump, wherein:
Can understand in conjunction with Fig. 2,3, one end of the first flowline 111 is communicated to out oil pocket 11b place, to introduce in the first flowline 111 going out the machine oil that oil pocket 11b pumps, and this end place certainly, the first flowline 111 is around the pump cover 12 of oil pump and extend to the homonymy with oil suction chamber 11a, and the other end of the first flowline 111 is provided with the first oil outlet 111a; Visible, one end of the first flowline 111 with go out oil pocket 11b homonymy, the other end and oil suction chamber 11a homonymy, and, the main body portion of the first flowline 111 is around pump cover 12, in Fig. 2, the first main bottom (corresponding to the part that driven gear 152 is set) around pump cover 12 of flowline 111;
And, the second 112 of flowlines with go out oil pocket 11b homonymy, one end of the second flowline 112 is communicated to out oil pocket 11b, the other end is provided with the second oil outlet 112a.So, the first oil outlet 111a and the second oil outlet 112a lay respectively at the both sides of oil pump.
So design, on the one hand, has realized the both sides that the first oil outlet 111a and the second oil outlet 112a are divided into oil pump, simply so that corresponding with two row cylinder locations; On the other hand, under the prerequisite setting up separately in realization, shortened as best one can the length of pipeline, made whole fuel pump structure compact, and the first flowline 111 around setting, can avoid the parts such as itself and pump cover 12, actuation gear 13 to interfere.
On this basis, the center line that the first oil outlet 111a and the second oil outlet 112a can relative oil pump roughly distributes symmetrically, and as shown in Figure 3, center line described herein is the left and right center line of oil pump, i.e. vertical dotted line in figure.So design, when oil pump is arranged in motor, two oil outlets are roughly suitable with a corresponding row cylinder distance, are convenient to realize lubricated docking.
For above-described embodiment, oil pump can be provided with at least two with the pressure-limit valve 14 that goes out oil pocket 11b and be communicated with, as shown in Figure 1, oil pump is provided with pressure-limit valve assembly.The function of pressure-limit valve 14 is: guarantee that oil pump can be operated under normal pressure, when oil pump internal pressure is too high, by pressure-limit valve 14, lay down part machine oil, maintain oil pump internal pressure normal; So, also can protect the oil filter (being connected with oil pump) for filtering machine oil, when the machine oil of excess pressure is by oil filter time, can damage oil filter, the pressure release effect of pressure-limit valve 14 obviously can protect filter cleaner to avoid pressure damage.At least two pressure-limit valves 14 are set, can improve pressure limiting effect, and superfluous She each other.In addition, the integrated assembly of pressure-limit valve 14, is convenient to install.Certainly, it is also feasible a pressure-limit valve 14 being only set.
For the set-up mode of above-mentioned flowline, pressure-limit valve 14 is preferably all located at the first flowline 111 places.As shown in Figure 1, the first flowline 111 around set-up mode, make it possess certain installing space, pressure-limit valve 14 (especially pressure-limit valve 14 unnecessary two time) is arranged in to this, easy to implement, install reliably, and do not interfere with miscellaneous part.
Further, in above-described embodiment, the surface of engine oil pump cover 12 can arrange stiffening rib 121.The setting of stiffening rib 121 can increase the intensity of oil pump integral body.
Please continue to refer to Fig. 4, the A-A that Fig. 4 is Fig. 2 is to sectional view.
Fig. 4 shows the concrete Placement of driving gear 151, driven gear 152 and pump cover 12, the pump housing 11.The pump housing 11, pump cover 12, can install by hexagon head bolt 17, and the pump housing 11 and pump cover 12 involutions form airtight pump oilgear chamber, to guarantee the pressure of pump oil, can prevent that impurity from entering simultaneously.Incorporated by reference to Fig. 2, understand, also be provided for installing the straight pin 19 of the location pump housing 11, pump cover 12, straight pin 19 can guarantee the coaxality of the pump housing 11 and pump cover 12, avoids damaging because coaxiality deviation is excessive the gear train (driving gear 151 and driven gear 152) of oil pump.Driving gear 151 and driven gear 152, by corresponding driving gear shaft 161, driven gear shaft 162, realize fixing with the pump housing 11, pump cover 12 respectively, driving gear shaft 161 and driven gear shaft 162 are all plugged in the pump housing 11 and pump cover 12 simultaneously, now, actuation gear 13 can hot charging in driving gear shaft 161, to drive driving gear 151 to rotate.Between driving gear shaft 161 and driven gear shaft 162 and pump cover 12, the pump housing 11, lining 18 can be set, as shown in Figure 4, lining 18 can prevent that gear shaft and pump cover 12, the pump housing 11 from relative wears occurring, and also contribute to realize sealing.
Now, the driven gear shaft 162 of driven gear 152 can arrange external shift fork 114, can drive external shift fork 114 to rotate when driven gear shaft 162 rotates, and external shift fork 114 can be connected with parts to be driven, to drive parts to be driven to rotate.So design, external shift fork 114 can utilize the energy of driven gear shaft 162 to drive miscellaneous part running, thereby makes full use of the energy of oil pump, falls low-energy loss, also saved the space of arranging power unit for other parts to be driven, simplied system structure.
Particularly, external shift fork 114 can have the interface being connected with oil transfer pump, and the parts to be driven that are connected with external shift fork 114 are oil transfer pump.The mounting point of oil transfer pump and oil pump approaches, thereby makes oil pump become expediently the actuator of oil transfer pump, saves the space of oil transfer pump transmission system.
Above a kind of oil pump provided by the present invention is described in detail.Applied specific case herein principle of the present invention and mode of execution are set forth, above embodiment's explanation is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
Claims (8)
1. an oil pump, for lubricated double-row type motor, is characterized in that, described oil pump comprises filler opening (113), and the first oil outlet (111a) and the second oil outlet (112a); Described the first oil outlet (111a) and described the second oil outlet (112a) are distributed in the both sides of described oil pump, respectively two row cylinders of corresponding lubricated described double-row type motor.
2. oil pump as claimed in claim 1, is characterized in that, described oil pump is inner to be formed oil suction chamber (11a) and goes out oil pocket (11b); Described oil suction chamber (11a) and described in go out the both sides that oil pocket (11b) is divided into described oil pump; Described filler opening (113) is located at described oil suction chamber (11a) and is located; And described oil-feed pump is provided with the first flowline (111) and the second flowline (112):
Described in one end of described the first flowline (111) is communicated to, going out oil pocket (11b) locates, and around the pump cover (12) of described oil pump and extend to and described oil suction chamber (11a) homonymy, described the first oil outlet (111a) is located at the other end of described the first flowline (111);
Described the second flowline (112) with described in go out oil pocket (11b) homonymy, described in one end of described the second flowline (112) is communicated with, go out oil pocket (11b), described the second oil outlet (112a) is located at the other end.
3. oil pump as claimed in claim 2, is characterized in that, described oil pump be provided with at least two with described in go out the pressure-limit valve (14) that oil pocket (11b) is communicated with.
4. oil pump as claimed in claim 3, is characterized in that, described pressure-limit valve (14) is all located at described the first flowline (111).
5. oil pump as claimed in claim 2, is characterized in that, described the first oil outlet (111a) is symmetrical with the center line of the relative described oil pump of described the second oil outlet (112a).
6. the oil pump as described in claim 1-5 any one, is characterized in that, the surface of the pump cover of described oil pump (12) is provided with stiffening rib (121).
7. the oil pump as described in claim 1-5 any one, it is characterized in that, described oil pump is the gear type oil pump with gear chamber, the driving gear (151) and the driven gear (152) that in described gear chamber, are provided with outer gearing, the driven gear shaft (162) of described driven gear (152) is provided with external shift fork (114).
8. oil pump as claimed in claim 7, is characterized in that, described external shift fork (114) has the interface being connected with oil transfer pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310470255.XA CN103527913B (en) | 2013-10-10 | 2013-10-10 | A kind of lubricating oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310470255.XA CN103527913B (en) | 2013-10-10 | 2013-10-10 | A kind of lubricating oil pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103527913A true CN103527913A (en) | 2014-01-22 |
| CN103527913B CN103527913B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310470255.XA Active CN103527913B (en) | 2013-10-10 | 2013-10-10 | A kind of lubricating oil pump |
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| Country | Link |
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| CN (1) | CN103527913B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488603A (en) * | 2018-03-16 | 2018-09-04 | 重庆永发工业有限公司 | A kind of motorcycle engine oil pump assembly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0660000A1 (en) * | 1993-11-30 | 1995-06-28 | Hobourn Automotive Limited | Positive displacement pumps |
| US6640768B1 (en) * | 1999-05-13 | 2003-11-04 | Sanshin Kogyo Kabushiki Kaisha | Lubrication system for direct injected engine |
| CN102818106A (en) * | 2012-08-30 | 2012-12-12 | 浙江平柴泵业有限公司 | One-inlet two-outlet double-connection oil pump |
| CN203517268U (en) * | 2013-10-10 | 2014-04-02 | 潍柴动力股份有限公司 | Oil pump |
-
2013
- 2013-10-10 CN CN201310470255.XA patent/CN103527913B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0660000A1 (en) * | 1993-11-30 | 1995-06-28 | Hobourn Automotive Limited | Positive displacement pumps |
| US6640768B1 (en) * | 1999-05-13 | 2003-11-04 | Sanshin Kogyo Kabushiki Kaisha | Lubrication system for direct injected engine |
| CN102818106A (en) * | 2012-08-30 | 2012-12-12 | 浙江平柴泵业有限公司 | One-inlet two-outlet double-connection oil pump |
| CN203517268U (en) * | 2013-10-10 | 2014-04-02 | 潍柴动力股份有限公司 | Oil pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488603A (en) * | 2018-03-16 | 2018-09-04 | 重庆永发工业有限公司 | A kind of motorcycle engine oil pump assembly |
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| Publication number | Publication date |
|---|---|
| CN103527913B (en) | 2016-08-17 |
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Inventor after: Wang Zhijian Inventor after: Wang Jinfeng Inventor after: Gong Nana Inventor before: Wang Jinfeng Inventor before: Gong Nana |
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Free format text: CORRECT: INVENTOR; FROM: WANG JINFENG GONG NANA TO: WANG ZHIJIAN WANG JINFENG GONG NANA |
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