CN101705892A - Electric oil pump - Google Patents
Electric oil pump Download PDFInfo
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- CN101705892A CN101705892A CN200910250237A CN200910250237A CN101705892A CN 101705892 A CN101705892 A CN 101705892A CN 200910250237 A CN200910250237 A CN 200910250237A CN 200910250237 A CN200910250237 A CN 200910250237A CN 101705892 A CN101705892 A CN 101705892A
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Abstract
The invention discloses an electric oil pump which comprises a pump body, wherein an inlet pipeline with an oil inlet and a connecting opening is arranged in the pump body, and the connecting opening is used for being communicated with the dirty oil end of a filter; an oil inlet passage, a pump cavity, an oil outlet passage and an oil outlet which are sequentially communicated are also arranged in the pump body; the oil inlet passage can be communicated with a central pipe of the filter by a thread connecting shaft, and a hydraulic pump assembly driven by a drive motor is arranged in the pump cavity. Through the electrification of a manual oil pump, the invention easily solves the current problem of time and power waste when a driver uses the manual oil pump to replace a filter and shuts down to exhaust; and the invention adopts the structural design of oil pumping at the clean end and ensures the working stability of the electric oil pump.
Description
Technical field
The present invention relates to a kind of auto parts and components, particularly a kind of electric oil pump.
Background technique
In the oil-fired system of modern diesel engines, high pressure co-rail system particularly, hand oil pump is widely used.General and the separator of hand oil pump is assembled together; constitute the separator assembly; its major function is behind engine shutdown, the air in the filter cleaner is discharged and will fill diesel oil in the filter cleaner, thereby guarantee the phenomenon that motor can't not start because have a large amount of gases in the filter tank.Also have a lot of driver habits when changing filter cleaner, also to use hand oil pump that filter cleaner is filled, do not refill and be fitted on the hand oil pump seat and get on and on request filter cleaner is not filled with diesel oil earlier.So just improved the frequency of utilization of hand oil pump greatly, also the usability to hand oil pump has proposed to compare higher requirement.Requirement is embodied in two aspects: 1, and pump oil ability requires hand pump can make whole filter cleaner very soon; With a present heavy truck is example, and the volume of filter tank is an example with the import hand oil pump of external certain brand about 2L, and this hand oil pump is dirty oil end pump oil, and single pump oil mass needs the pump oil number of times more than 80 times at 25ml; If adopt the hand pump of clean end pump oil, pump oil number of times is often more than 150 times; 2, durability, frequent use has proposed requirement to hand oil pump durable, and the stability in life-cycle work has very high requirement.
Because the problem of diesel quality; adopt the hand oil pump of dirty oil end pump oil; stuck idle situation often appears in its inner one-way valve; and directly cause the hand oil pump disabler; when particularly behind engine shutdown, needing exhaust; air can not arranged in the filter tank, and motor can't start, and causes very burden to the user.If adopt the hand oil pump of clean end pump oil, because the underbalance effect that forms is little, more than 2 times of number of times of the dirty often oil end of pump oil number of times pump oil.The driver is that generation is often arranged to the complaint of hand oil pump.
Summary of the invention
The present invention seeks to: a kind of electric oil pump is provided; motorized by hand oil pump; solve the driver easily and changing filter cleaner, shutting down the existing situation of using hand oil pump to waste time and energy in the exhaust, and adopt the structural design of clean end pump oil, guaranteed the working stability of electric oil pump.
One of technological scheme of the present invention is: a kind of electric oil pump, comprise the pump housing, be provided with inlet ductwork in the described pump housing with filler opening and connection mouth, this connection mouth is used for being communicated with the dirty oil end of filter cleaner, also be provided with the oil inlet passage, pump chamber, oil discharge passage and the oil outlet that are communicated with successively in the described pump housing, this oil inlet passage can be communicated with the center tube of filter cleaner by the axle that is threaded, and is provided with the Hydraulic pump assembly that is driven by drive motor in the described pump chamber.
Two of technological scheme of the present invention is: a kind of electric oil pump, comprise the pump housing, be provided with inlet ductwork in the described pump housing with filler opening and connection mouth, this connection mouth is used for being communicated with the dirty oil end of filter cleaner, also be provided with the oil inlet passage, pump chamber, oil discharge passage and the oil outlet that are communicated with successively in the described pump housing, this oil inlet passage can be communicated with the center tube of filter cleaner by the axle that is threaded, and is provided with the Hydraulic pump assembly that is driven by drive motor in the described pump chamber; Be communicated with bleed off circuit between described oil inlet passage and the oil outlet, be provided with the bypass one-way valve in the bleed off circuit.
Hydraulic pump assembly in above-mentioned two technological schemes can be plunger assembly, when the Hydraulic pump assembly is plunger assembly, drive motor is a reciprocable machine, is provided with in line check valve between described pump chamber and the oil inlet passage, is provided with fuel-displaced one-way valve between pump chamber and the oil discharge passage.
Hydraulic pump assembly in above-mentioned two technological schemes can also be Hydraulic pump assemblies such as gear pair assembly or septum assembly.
One-way valve in above-mentioned two technological schemes (bypass one-way valve, in line check valve, fuel-displaced one-way valve) is umbrella valve.
Advantage of the present invention is:
1. the present invention can solve the existing situation that the driver uses hand oil pump to waste time and energy in changing filter cleaner, shutdown exhaust.
2. the present invention can be placed on control switch the place of the convenient control of driver, as cockpit etc., makes things convenient for the driver to control, and be subjected to spatial constraints unlike hand oil pump, is difficult to operation.
3. the electric oil pump among the present invention is arranged in the clean oil end of filter cleaner, the problem that can avoid dirty oil end oil sucting one-way valve to lose efficacy, simultaneously also unlike clean end pump oil hand oil pump pump oil waste time and energy.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described:
Fig. 1 is embodiment one a principle schematic;
Structure and oil circuit schematic representation when Fig. 2 is plunger assembly for Hydraulic pump assembly among the embodiment one;
Fig. 3 is embodiment two a principle schematic;
Structure and oil circuit schematic representation when Fig. 4 is the gear pair assembly for Hydraulic pump assembly among the embodiment two.
Wherein: 1 pump housing; 2 inlet ductwork; 21 filler openings; 22 connection mouths; 3 oil inlet passages; 4 pump chambers; 5 oil discharge passages; 6 oil outlets; 7 drive motor; 8 Hydraulic pump assemblies; 9 filter cleaners; 91 dirty oil ends; 92 center tubes; 10 axles that are threaded; 11 bleed off circuits; 12 bypass one-way valves; 13 in line check valves; 14 fuel-displaced one-way valves; 100 with the electric oil pump of bleed off circuit; The electric oil pump of 200 band bleed off circuits.
Embodiment
Embodiment one: as shown in Figures 1 and 2, a kind of not with the electric oil pump 100 of bleed off circuit, comprise the pump housing 1, be provided with inlet ductwork 2 in the described pump housing 1 with filler opening 21 and connection mouth 22, also be provided with the oil inlet passage 3, pump chamber 4, oil discharge passage 5 and the oil outlet 6 that are communicated with successively in the described pump housing 1, be provided with the Hydraulic pump assembly 8 that drives by drive motor 7 in the described pump chamber 4.
Described electric oil pump 100 can use after assembling with filter cleaner 9 by the axle 10 that is threaded, after electric oil pump and filter cleaner 9 assemblings are finished, the dirty oil end 91 of the connection mouth 22 of described inlet ductwork 2 and filter cleaner 9 is communicated with, and described oil inlet passage 3 spools 10 is communicated with the center tube 92 (clean oil end) of filter cleaner 9 by being threaded.
Above-mentioned Hydraulic pump assembly 8 can be plunger assembly, and when Hydraulic pump assembly 8 was plunger assembly, drive motor 7 was a reciprocable machine, was provided with in line check valve 13 between described pump chamber 4 and the oil inlet passage 3, is provided with fuel-displaced one-way valve 14 between pump chamber 4 and the oil discharge passage 5.Above-mentioned Hydraulic pump assembly 8 can also or be Hydraulic pump assemblies such as septum assembly for the gear pair assembly.
Below be that example is specifically described with the plunger type electric oil pump, concrete structure is seen Fig. 2, working oil path is understood in the figure acceptance of the bid, the working oil path of the working oil path during its motor-drive pump work during with engine operation is consistent.
When electric oil pump 100 is done, reciprocable machine drives plunger assembly and moves downward earlier the discharge of the air in the pump chamber 4, this moment, fuel-displaced one-way valve 14 was opened, in line check valve 13 is closed, when the driven by motor plunger assembly moves upward, form negative pressure in the pump chamber 4, this moment, fuel-displaced one-way valve 14 was closed, in line check valve 13 is opened, with diesel oil suction filter 9 in the fuel tank.Its oil circuit as shown in Figure 2.
When motor car engine was worked, under the pump-absorb action of fuel pump, in line check valve 13 and fuel-displaced one-way valve 14 were opened, and after fuel from fuel tank filtered through filter cleaner 9, clean diesel oil entered pump chamber 4 from line check valve 13, discharges through fuel-displaced one-way valve 14.The design of clean end pump oil has guaranteed the functional reliability of two one-way valves, and the plunger type motor-drive pump is owing to advantages such as plunger stroke are big, and oil absorption is strong.
Embodiment two is: as shown in Figures 3 and 4, a kind of electric oil pump 200 with bleed off circuit, comprise the pump housing 1, be provided with inlet ductwork 2 in the described pump housing 1 with filler opening 21 and connection mouth 22, also be provided with the oil inlet passage 3, pump chamber, oil discharge passage 5 and the oil outlet 6 that are communicated with successively in the described pump housing 1, be provided with the Hydraulic pump assembly 8 that drives by drive motor 7 in the described pump chamber, be communicated with bleed off circuit 11 between described oil inlet passage 3 and the oil outlet 6, be provided with bypass one-way valve 12 in the bleed off circuit 11.
Described electric oil pump can use after assembling with filter cleaner 9 by the axle 10 that is threaded, after electric oil pump and filter cleaner 9 assemblings are finished, the dirty oil end 91 of the connection mouth 22 of described inlet ductwork 2 and filter cleaner 9 is communicated with, and described oil inlet passage 3 spools 10 is communicated with the center tube 92 (clean oil end) of filter cleaner 9 by being threaded.
Above-mentioned Hydraulic pump assembly 8 can be the gear pair assembly, also can be septum assembly, can also be Hydraulic pump assemblies such as plunger assembly.When Hydraulic pump assembly 8 was plunger assembly, drive motor 7 was a reciprocable machine, was provided with in line check valve between described pump chamber and the oil inlet passage 3, was provided with fuel-displaced one-way valve between pump chamber and the oil discharge passage 5.
As shown in Figure 4, be example with the gear type electric oil pump, the diesel oil oil circuit during respectively to electric oil pump work and engine operation is done explanation.
Oil circuit in the electric oil pump work is represented with thick arrow in Fig. 4.When pump is oily in the needs electric oil pump is given filter cleaner 9, open the pump oil switch of drive motor 7, and driven gear subcomponent 8 rotates and forms pump suction effect.After gear pair assembly 8 is started working, form negative pressure in the filter cleaner 9 and the pump housing 1, diesel oil is sucked the pump housing 1 filler opening 21 from fuel tank, directly enter the filter medium outer end (dirty oil end) 91 of filter cleaner 9, by entering behind the filter medium in the center tube (clean oil end) 92.Clean diesel oil directly leads to an oil inlet passage 3 and gear pair assembly entry ends through the axle 10 that is threaded, and under the effect of gear pair assembly 8, diesel pump is delivered to the outlet end of gear pair assembly 8, through the oil outlet 6 of oil discharge passage 5 through motor-drive pumps.After motor-drive pump oil outlet 6 places pumped diesel oil, promptly filter cleaner was full of, can close the electric oil pump switch, stopped pump oil.When electric oil pump was worked, the bypass one-way valve 12 in the bleed off circuit 11 was owing to be in closed condition under suction function.Electric oil pump is arranged on the clean oil end, also helps protecting the component of electric oil pump not to be subjected to the damage of dirty well cuts.
When motor car engine was worked, the oil circuit of diesel oil was represented with the thin arrow among Fig. 4.Diesel oil sucks by the pump housing 1 filler opening 21 from fuel tank, directly enters the filter medium outer end (dirty oil end) 91 of filter cleaner 9, by entering behind the filter medium in the center tube (clean oil end) 92.Clean oil after the filtration enters oil inlet passage 3 by the axle 10 that is threaded, and by the bypass one-way valve of opening 12, directly the oil outlet 6 from electric oil pump pumps.
The foregoing description two is the preferred embodiments of the invention, during motor car engine work, diesel oil pumps through bleed off circuit 11, flow resistance is little, avoided diesel oil from the motor-drive pump pump chamber 4 interior pressure losses, can guarantee that the usability of oil-fired system can effectively improve the working life of filter cleaner 9 again through producing.
Claims (5)
1. electric oil pump, comprise the pump housing (1), be provided with the inlet ductwork (2) of have filler opening (21) and connection mouth (22) in the described pump housing (1), this connection mouth (22) is used for being communicated with the dirty oil end (91) of filter cleaner (9), also be provided with the oil inlet passage (3) that is communicated with successively in the described pump housing (1), pump chamber (4), oil discharge passage (5) and oil outlet (6), this oil inlet passage (3) can be communicated with the center tube (92) of filter cleaner (9) by the axle (10) that is threaded, and it is characterized in that: be provided with the Hydraulic pump assembly (8) that is driven (7) by drive motor in the described pump chamber (4).
2. according to the described electric oil pump of claim 1, it is characterized in that: be communicated with bleed off circuit (11) between described oil inlet passage (3) and the oil outlet (6), be provided with bypass one-way valve (12) in the bleed off circuit (11).
3. according to claim 1 or 2 described electric oil pumps, it is characterized in that: described Hydraulic pump assembly (8) is a plunger assembly, drive motor (7) is a reciprocable machine, be provided with in line check valve (13) between described pump chamber (4) and the oil inlet passage (3), be provided with fuel-displaced one-way valve (14) between pump chamber (4) and the oil discharge passage (5).
4. according to claim 1 or 2 described electric oil pumps, it is characterized in that: described Hydraulic pump assembly (8) is the gear pair assembly.
5. according to claim 1 or 2 described electric oil pumps, it is characterized in that: described Hydraulic pump assembly (8) is a septum assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910250237A CN101705892A (en) | 2009-12-09 | 2009-12-09 | Electric oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910250237A CN101705892A (en) | 2009-12-09 | 2009-12-09 | Electric oil pump |
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| Publication Number | Publication Date |
|---|---|
| CN101705892A true CN101705892A (en) | 2010-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910250237A Pending CN101705892A (en) | 2009-12-09 | 2009-12-09 | Electric oil pump |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269089A (en) * | 2010-06-04 | 2011-12-07 | 温州华科工业发展有限公司 | Diesel filter system with design-optimized low-pressure oil way |
| CN103075281A (en) * | 2012-12-25 | 2013-05-01 | 上海世德子汽车零部件有限公司 | Electric oil delivery pump assembly and diesel engine applying same |
| CN106837631A (en) * | 2017-04-06 | 2017-06-13 | 黄国尧 | A kind of brushless timing electrically operated fuel pump of integrated bypass valve |
| CN107061081A (en) * | 2017-04-06 | 2017-08-18 | 黄国尧 | A kind of integrated bypass valve has a brush timing electrically operated fuel pump |
| CN111120173A (en) * | 2019-12-31 | 2020-05-08 | 吉利汽车研究院（宁波）有限公司 | High-pressure oil pump fault detection system, high-pressure oil pump fault detection method and vehicle |
-
2009
- 2009-12-09 CN CN200910250237A patent/CN101705892A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269089A (en) * | 2010-06-04 | 2011-12-07 | 温州华科工业发展有限公司 | Diesel filter system with design-optimized low-pressure oil way |
| CN103075281A (en) * | 2012-12-25 | 2013-05-01 | 上海世德子汽车零部件有限公司 | Electric oil delivery pump assembly and diesel engine applying same |
| CN106837631A (en) * | 2017-04-06 | 2017-06-13 | 黄国尧 | A kind of brushless timing electrically operated fuel pump of integrated bypass valve |
| CN107061081A (en) * | 2017-04-06 | 2017-08-18 | 黄国尧 | A kind of integrated bypass valve has a brush timing electrically operated fuel pump |
| CN111120173A (en) * | 2019-12-31 | 2020-05-08 | 吉利汽车研究院（宁波）有限公司 | High-pressure oil pump fault detection system, high-pressure oil pump fault detection method and vehicle |
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Open date: 20100512 |