CN201326426Y - Oil line system of single oil pump - Google Patents
Oil line system of single oil pump Download PDFInfo
- Publication number
- CN201326426Y CN201326426Y CNU200820135493XU CN200820135493U CN201326426Y CN 201326426 Y CN201326426 Y CN 201326426Y CN U200820135493X U CNU200820135493X U CN U200820135493XU CN 200820135493 U CN200820135493 U CN 200820135493U CN 201326426 Y CN201326426 Y CN 201326426Y
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- oil
- oil pump
- way system
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Abstract
The utility model relates to an oil line system of a single oil pump. A driving gear is accommodated inside a crankcase; and an oil pump is assembled on one side of the driving gear. The tail end of the rotating shaft of the oil pump penetrates through a non-circular central hole at the center of the driving gear. An oil supply passage extends out of an oil chamber and forms a lubricating and cooling oil passage and a rocker arm switching mechanism oil passage in a branching manner; the lubricating and cooling oil passage comprises a necking zone; and a pressure relief valve is assembled on the lubricating and cooling oil passage in front of the necking zone. The oil line system can obtain the advantages equivalent to a double oil pump system such as adequate oil supply pressure, stable oil supply, reliable action of the rocker arm switching mechanism and the like only through arranging the single machine oil pump, thereby being a design with remarkable inventiveness, which reduces the demands of components and saves the assembly time and the consumption of pump-driven energy sources. Therefore, the oil line system can simplify the design of oil lines and is favorable for easily applying the placing spaces of oil pipes.
Description
Technical field
The utility model relates to a kind of unit oil pump device, refers to a kind of supply engine cutting oil and oily unit oil pump device of variable rocker-arm switching mechanism driving simultaneously of being applicable to especially.
Background technique
The variable rocker-arm switching mechanism widely is applied to internal-combustion engine vehicle, its machine oil that is used for carrying out switch motion is the some of the pressurization machine oil that discharges for the oil pump in the Vehicular system, and some machine oil then is to supply to engine cylinder as cooling, lubrication applications in addition.
Known have lubricated and cooling machine oil that the design that utilizes the two-shipper oil pump independently provides engine cylinder, an and required machine oil person of rocking arm switching mechanism, contained as No. the 488483rd, TaiWan, China patent announcement.With reference to figure 1, it illustrates the known two-shipper oil pump device exploded view of aforementioned patent case, two oil pump 3,4 that the two-shipper oil pump device mainly comprises the actuation gear 2 that is located in crankcase 1 and is arranged at actuation gear 2 relative two sides.
Each oil pump 3,4 all includes a rotating shaft 5,6, wherein has the actuating part 7 of a shape corresponding to the non-circular centre hole 9 of actuation gear 2 central authorities in the rotating shaft 5.Non-circular centre hole 9 is passed in the actuating part 7 of above-mentioned rotating shaft 5, and 8 of the actuating parts of another rotating shaft 6 are engaged in the actuating part 7 of aforementioned rotating shaft 5, rotates synchronously by this.
Utilize two oil pump to be responsible for fuel feeding separately to the lubricating cooling oil road, when reaching rocking arm switching mechanism oil duct as described above, two oil ducts independently obtain oil pressure stable and that continue separately, can not interfere with each other.Yet, use two-shipper oil pump design more component part of significant need and cost, and its lubricating oil path design is complicated, the improvement of oil pipe placing space is difficult for.
The model utility content
The purpose of this utility model provides a kind of unit oil pump oil-way system, and it only is provided with single oil pump can guarantee promptly to supply with that the engine oil pressure of rocking arm switching mechanism 56 is enough, fuel feeding stable, and then the switch motion that makes mechanism rapidly and really.
The purpose of this utility model is achieved in that unit oil pump oil-way system includes a crankcase, an actuation gear, an oil pump, a fuel feeding road, reaches a Decompression valves.Crankcase inside is formed with a machine oil chamber, and the machine oil chamber has been installed with actuation gear and oil pump.Actuation gear central authorities have a non-circular centre hole.
The said engine oil pump is mounted on a side of actuation gear, and includes a rotating shaft.Rotating shaft one end forms an actuating part, just corresponding to the non-circular centre hole shape of actuation gear, and runs through non-circular centre hole and protrudes out to opposite side.
Above-mentioned fuel feeding road is communicated with and goes out from the machine oil chamber, fuel feeding road and fork are formed with a lubricating cooling oil road and a rocking arm switching mechanism oil duct, in order to an engine cylinder and the required machine oil of a rocking arm switching mechanism to be provided, wherein the lubricating cooling oil road includes a necking down region respectively.Decompression valves is positioned on the above-mentioned lubricating cooling oil road, and before necking down region.
The putting position of Decompression valves can be on the fuel feeding road, but preferable lubricating cooling oil road section between necking down region and oil duct bifurcation.Because if be arranged on other position, for example before bifurcation, whole pipe oil pressure moment fallen too much, and fall too much as if being located at the engine oil pressure moment that also equally easily makes on the rocking arm switching mechanism oil duct towards the rocking arm switching mechanism.
The inlet of above-mentioned necking down region can be sudden contraction, outlet can be sudden expansion, with more effective lift line pressure.Can organize in the above-mentioned lubricating cooling oil road and be provided with a sleeve pipe, define necking down region, and sleeve pipe includes sudden contraction inlet, exports with a sudden expansion with sleeve pipe.The outlet of above-mentioned Decompression valves can be communicated to an oil sump and carry out the machine oil recovery or be communicated to necking down region lubricating cooling oil road section afterwards carrying out the machine oil feedback.
That the actuating part of above-mentioned rotating shaft can be is square, the rotating shaft front end can be organized and be provided with a clasp, with stationary drive gear.Above-mentioned rocking arm switching mechanism can be equipped with a solenoid valve, and by the turnover of electromagnetic valve machine oil, and solenoid valve can utilize its start of an electronic control unit controls.
Oil-way system of the present utility model only is provided with single oil pump simultaneously supply engine cylinder, and the required machine oil of rocking arm switching mechanism, and guarantees that rocking arm switching mechanism fuel feeding situation for stable, pressure foot, makes mechanism's switch motion certain rapidly.The utility model also have the part demand little, save cost, and other advantage of oil circuit design simplification.
Description of drawings
Fig. 1 is the exploded view of known two-shipper oil pump device.
Fig. 2 is the unit oil pump device exploded view of the utility model one preferred embodiment.
Fig. 3 is the unit oil pump oil-way system schematic representation of the utility model one preferred embodiment.
Fig. 4 is Fig. 3 Decompression valves pipeline configuration schematic diagram.
Fig. 5 is the Decompression valves pipeline configuration schematic diagram of another preferred embodiment of the utility model.
The primary clustering symbol description
Crankcase 1 actuation gear 2
Actuating part 7,8 non-circular centre holes 9
Crankcase 10 machine oil chambers 101
Lubricating cooling oil road 13 rocking arm switching mechanism oil ducts 14
Necking down region 15 necking down region inlet 151
Necking down region exports 152 actuation gears 20
Non-circular centre hole 21 oil pump 30
Sleeve pipe 51 joints 52
Embodiment
With reference to figure 2 and Fig. 3, it illustrates the unit oil pump device exploded view and the oil-way system schematic representation thereof of the utility model one preferred embodiment respectively.Present embodiment is that unit oil pump oil-way system is applied to a locomotive carrier, be formed with a machine oil chamber 101 in crankcase 10 bottoms, one oil pump 30 and an actuation gear 20 are mounted in the machine oil chamber 101, and wherein oil pump 30 is that the position is between machine oil chamber 101 walls and actuation gear 20.
Referring to figs. 2 to Fig. 4, Fig. 4 is a Decompression valves pipeline configuration schematic diagram at the same time.Include a necking down region 15 in the lubricating cooling oil road 13.Present embodiment be device one sleeve pipe 51 in lubricating cooling oil road 13 forming above-mentioned necking down region 15, by sleeve pipe 51 have different in the essence of external diameters reach the constriction purpose.In addition, sleeve pipe 51 also has the inlet 151 of sudden contraction and the outlet 152 of sudden expansion.
In on the above-mentioned lubricating cooling oil road 13, before the inlet 151 of necking down region 15, just, also be provided with a Decompression valves 40 between the bifurcation point of lubricating cooling oil road 13 and rocking arm switching mechanism oil duct 14 and the position between the sleeve pipe 51.The inlet 401 of Decompression valves 40 is communicated in lubricating cooling oil road 13 sections before the necking down region inlet 151,402 of the outlets of Decompression valves 40 stride across necking down region 15 and are communicated to thereafter lubricating cooling oil road 13 sections, but constitute a kind of loop of feedback tool certain pressure machine oil.
The formation of Decompression valves 40 mainly contains a steel ball 43, a spring 42, a plug cock 41, and when pre-thrust that oil pressure is not enough to contend with spring 42, steel ball 43 is subjected to spring 42 pushing tows and blocks the Decompression valves inlet 401 that is opened on the plug cock 41, and Decompression valves outlet 402; When oil pressure surpassed the pre-thrust of spring 42, steel ball 43 was displacement and machine oil is discharged from Decompression valves outlet 402, reaches the pressure release purpose.
Rocking arm switching mechanism 56 is to see through the turnover that a solenoid valve 57 is controlled machine oil, and the switch start of solenoid valve 57 is controlled with an electronic control unit 58.According to the environment of being detected, electronic control unit 58 triggers solenoid valve 57 starts under given conditions.
In above-mentioned unit oil pump oil-way system, oil pump 30 is drawn machine oil also with it pressurization from oil suction passage 11, when the pressurized machine oil slave oil-in chamber of sending 101, after fuel feeding road 12 flows walking, shunting is continued some flow through lubricating cooling oil road 13, another rocking arm switching mechanism oil duct 14 of partly flowing through at the pipeline bifurcation point.
Because lubricating cooling oil road 13 is provided with necking down region 15, it can make oil pressure become big, whole oil-way system can guarantee with regard to the result to supply with that the engine oil pressure of rocking arm switching mechanism 56 is enough, fuel feeding stable, and then the switch motion that makes mechanism is rapid and certain, does not have the switching mechanism phenomenon not certain in conjunction with moving, escape between transfer period that occurs in various known single pumps designs.
In addition, when if engine oil pressure is excessive in the oil-way system, may influence the smoothness of switching mechanism when discharging the machine oil pressure release, i.e. the generation of delay phenomenon also has the risk that lost efficacy and leakage is taken place as parts such as oil sealing, pads in addition under the high-pressure liquid environment.So Decompression valves be arranged so that the pipeline engine oil pressure is comparatively stable, remaining on a proper range can be not excessive, avoids the generation of the problems referred to above.Present embodiment not only has above-mentioned advantage with the position that Decompression valves is arranged between necking down region and bifurcation, more the influence of moment step-down can be only reached in the lubricating cooling oil road, avoids making whole pipeline oil pressure moment to fall too much.
With reference to figure 5, it illustrates the Decompression valves pipeline configuration schematic diagram of another preferred embodiment.Except the above-mentioned design that machine oil is fed back to the lubricating cooling oil road, the outlet 402 of Decompression valves 40 also can be communicated to oil sump 53 and carry out machine oil and reclaim.
The utility model only arranges the unit oil pump can obtain enough, the confession of the charge oil pressure that is same as the two-shipper oil pump systems The advantages such as rocking arm switching mechanism action is certain are stablized, made to oil, is in fact one to have the design of progressive, not only reduces by zero Assembly demand, saving built-up time, saving pump drive energy consume, and also therefore can simplify the oil circuit design, are conducive to The easiness that the oil pipe placing space is used.
Claims (10)
1. unit oil pump oil-way system is characterized in that including:
One crankcase, its inside are formed with a machine oil chamber;
One actuation gear is located in this crankcase, and its central authorities form a non-circular centre hole;
One oil pump is mounted on a side of this actuation gear, includes a rotating shaft, and this rotating shaft one end forms an actuating part, just corresponding to this non-circular centre hole shape of this actuation gear, and runs through this non-circular centre hole and protrudes out to opposite side;
One fuel feeding road, be communicated with and go out from this machine oil chamber, this fuel feeding road and fork are formed with a lubricating cooling oil road and a rocking arm switching mechanism oil duct, and in order to an engine cylinder and the required machine oil of a rocking arm switching mechanism to be provided, wherein this lubricating cooling oil road includes a necking down region respectively; And
One Decompression valves is to be positioned on this lubricating cooling oil road, and before this necking down region.
2. unit oil pump oil-way system as claimed in claim 1, the inlet that it is characterized in that this necking down region is sudden contraction.
3. unit oil pump oil-way system as claimed in claim 1, the outlet that it is characterized in that this necking down region is sudden expansion.
4. unit oil pump oil-way system as claimed in claim 1 is characterized in that group is provided with a sleeve pipe in this lubricating cooling oil road, and this sleeve pipe defines this necking down region, and this sleeve pipe includes sudden contraction inlet, exports with a sudden expansion.
5. unit oil pump oil-way system as claimed in claim 1 is characterized in that the outlet of this Decompression valves is communicated to an oil sump.
6. unit oil pump oil-way system as claimed in claim 1 is characterized in that the outlet of this Decompression valves is communicated to this necking down region this lubricating cooling oil road section afterwards.
7. unit oil pump oil-way system as claimed in claim 1 is characterized in that this actuating part is square.
8. unit oil pump oil-way system as claimed in claim 1 is characterized in that this rotating shaft front group is provided with a clasp, to fix this actuation gear.
9. unit oil pump oil-way system as claimed in claim 1 is characterized in that this rocking arm switching mechanism is equipped with a solenoid valve, by this machine oil turnover of this electromagnetic valve.
10. unit oil pump oil-way system as claimed in claim 9 is characterized in that this solenoid valve is by its start of an electronic control unit controls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820135493XU CN201326426Y (en) | 2008-10-22 | 2008-10-22 | Oil line system of single oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820135493XU CN201326426Y (en) | 2008-10-22 | 2008-10-22 | Oil line system of single oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201326426Y true CN201326426Y (en) | 2009-10-14 |
Family
ID=41178398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820135493XU Expired - Fee Related CN201326426Y (en) | 2008-10-22 | 2008-10-22 | Oil line system of single oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201326426Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481630A (en) * | 2014-12-12 | 2015-04-01 | 隆鑫通用动力股份有限公司 | Driving pin fixed engine oil pump |
| CN104595054A (en) * | 2014-12-12 | 2015-05-06 | 隆鑫通用动力股份有限公司 | Crankcase cover with fixed driving pin |
| CN104612780B (en) * | 2014-12-12 | 2018-05-04 | 隆鑫通用动力股份有限公司 | Can pressure release type engine oil supplying assembly |
-
2008
- 2008-10-22 CN CNU200820135493XU patent/CN201326426Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481630A (en) * | 2014-12-12 | 2015-04-01 | 隆鑫通用动力股份有限公司 | Driving pin fixed engine oil pump |
| CN104595054A (en) * | 2014-12-12 | 2015-05-06 | 隆鑫通用动力股份有限公司 | Crankcase cover with fixed driving pin |
| CN104612780B (en) * | 2014-12-12 | 2018-05-04 | 隆鑫通用动力股份有限公司 | Can pressure release type engine oil supplying assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20171022 |