CN204328435U - A kind of one-way non-return formula oil pump - Google Patents
A kind of one-way non-return formula oil pump Download PDFInfo
- Publication number
- CN204328435U CN204328435U CN201420781340.8U CN201420781340U CN204328435U CN 204328435 U CN204328435 U CN 204328435U CN 201420781340 U CN201420781340 U CN 201420781340U CN 204328435 U CN204328435 U CN 204328435U
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- oil
- oil pump
- way non
- fuel
- tube
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- Expired - Fee Related
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- Rotary Pumps (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a kind of one-way non-return formula oil pump, the connecting pipeline between described oil pump and oil sump is also arranged an one-way non-return device.The utility model makes by arranging one-way non-return device to be full of lubricant oil all the time in the inlet line of oil pump, solve lubricating system of IC engine fuel feeding problem not in time, thus the overall performance of combustion motor lubrication system is greatly improved.
Description
Technical field
The utility model relates to a kind of one-way non-return formula oil pump.
Background technique
Lubricating system of IC engine is in oil pump performance requirement, wherein an important indicator is " starting the fuel-displaced time ", in principle when with 250r/min, its fuel-displaced time should be less than or equal to 5s, combustion motor runs, when after internal combustion engine start, lubrication system supply time is better more in time, but, at present in the internal-combustion engine of a lot of model, by the restriction of structural condition, oil pump mounting point is larger from oil sump distance, cause inlet line spatial volume excessive, when operation of oil pump, oil sucting cavity forms vacuum, produce the overlong time of negative pressure, be difficult to meet the condition to the timely fuel feeding of each lubricating point of main frame.
Summary of the invention
The technical problems to be solved in the utility model is existing oil pump because the distance between mounting point and oil sump is larger, cause the spatial volume of inlet line excessive, when operation of oil pump, oil sucting cavity forms vacuum, produce the overlong time of negative pressure, be difficult to meet the condition to the timely fuel feeding of each lubricating point of main frame.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of one-way non-return formula oil pump, the connecting pipeline between described oil pump and oil sump is also arranged an one-way non-return device.
The utility model is for many moneys lubricating system of IC engine fuel feeding defect not in time, one-way non-return device is set up to oil pump oil absorption system, when oil pump starts work again with main frame, oil is filled with in oil pump suction pipeline, or only have a small amount of space, due in oil pump suction pipeline stored in air void between little, the suction empty time shortens greatly, rapid formation oil pump is fully loaded with, eliminate the fuel-displaced delayed phenomenon of host-initiated gear pump, the fuel feeding of combustion motor lubrication system is timely, reliably, simultaneously, one-way non-return device setting, certain supporting effect can also be played by combustion motor.
Further, described one-way non-return device comprises with lower part: oil pick-up tube: its oil-feed portion is horn mouth, and the tube wall in fuel-displaced portion is provided with more than one oilhole, and aforementioned bell-mouthed wide end connects fuel-displaced portion, narrow end connects oil sump oil suction, is provided with gear oil droplet and block bead pin in described oil pick-up tube; The diameter of gear oil droplet is greater than the internal diameter of the narrow end of horn mouth, is less than the internal diameter in fuel-displaced portion, and gear oil droplet can slide up and down between block bead pin and horn mouth along fuel-displaced portion; Logical oil pocket: which is provided with oil pick-up tube import and oil outlet, the fuel-displaced portion of oil pick-up tube inserts in logical oil pocket completely from oil pick-up tube import.When oil suction, gear oil droplet slides towards block bead pin direction under the pressure of oil, and finally props up block bead pin and stop, and oil flows into logical oil pocket from the oilhole in fuel-displaced portion, then is flowed out by the oil outlet of logical oil pocket, fills the inlet line of oil pump; When not oil suction time, gear oil droplet falls the oil-feed portion to oil pick-up tube after rise, and block and block whole horn mouth at horn mouth place, oil in the inlet line of oil pump cannot be refluxed, thus achieve the function of one-way non-return, its structure is simple, service time for a long time, be not easy to break down, and non-return is effective.
The utility model has the advantages that: making by arranging one-way non-return device to be full of lubricant oil all the time in the inlet line of oil pump, solve lubricating system of IC engine fuel feeding problem not in time, thus the overall performance of combustion motor lubrication system being greatly improved.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of one-way non-return device of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
For S1110 diesel engine, in prior art, oil pump is arranged on outside main frame body, oil pump driving torque is transmitted by main frame trunnion shaft, oil sump (sump) is arranged on below body, oil pump inlet line is longer, and oil pump is with after host-initiated, and volumetric efficiency is run than excessive relative to oil hydraulic-pump rotor in oil sucting cavity and pipeline space, so host-initiated gear pump realizes the normal fuel injection time and is difficult to be less than the requirement equaling 5s.
As shown in Figure 1-2, the utility model installs an one-way non-return device additional at the machine oil pasta line place, inlet line lower end of S1110 diesel engine.Through repetition test and detection, main frame is shut down after first time starts, and being separated by, different time sections starts again, and the oil pump feed time almost realizes with the host-initiated time simultaneously.Shorten oil pump and inhale the empty time, make the lubricating condition of lubricating system of IC engine obtain basic improving.
Described one-way non-return device comprises with lower part: oil pick-up tube: its oil-feed portion 3 is horn mouth, the tube wall in fuel-displaced portion 2 is provided with more than one, is evenly arranged in oilhole 6 on tube wall, aforementioned bell-mouthed wide end connects fuel-displaced portion 2, narrow end connects oil sump oil suction, is provided with gear oil droplet 4 and block bead pin 5 in described oil pick-up tube; The diameter of gear oil droplet 4 is greater than the internal diameter of the narrow end of horn mouth, is less than the internal diameter in fuel-displaced portion 2, and gear oil droplet 4 can slide up and down between block bead pin 5 and horn mouth along fuel-displaced portion 2; Logical oil pocket 1: which is provided with oil pick-up tube import and oil outlet 7, the fuel-displaced portion 2 of oil pick-up tube inserts in logical oil pocket 1 completely from oil pick-up tube import.When oil suction, gear oil droplet 4 slides towards block bead pin 5 direction under the pressure of oil, and finally props up block bead pin 5 and stop, and oil flows into logical oil pocket 1 from the oilhole 6 in fuel-displaced portion 2, then is flowed out by the oil outlet 7 of logical oil pocket 1, fills the inlet line of oil pump; When not oil suction time, gear oil droplet 4 falls the oil-feed portion 3 to oil pick-up tube after rise, and block and block whole horn mouth at horn mouth place, oil in the inlet line of oil pump cannot be refluxed, thus achieve the function of one-way non-return, its structure is simple, service time for a long time, be not easy to break down, and non-return is effective.During installation, fuel-displaced portion 2 end face of oil pick-up tube props up oil outlet 7 place of logical oil pocket 1, and oil pick-up tube connects logical oil pocket 1 by adjustment bolt 8.
Working principle is as follows:
In traditional combustion engine oil pump inlet line, set up an one-way non-return device, this device is arranged on pipeline close to oil sump pasta line place, work after oil pump is with host-initiated, oil pump suction chamber and pipeline form vacuum generation negative pressure and the gear oil droplet 4 in one-way non-return device are opened oil suction, by oil pump pumping cavity force feed to lubrication system fuel feeding, after main shut-down system, oil pump quits work, oil in pipeline is in the process of oil return chassis, gear oil droplet 4 is pushed to the horn mouth sealed, oil return oil pipe is closed, oil return is closed in pipeline, when oil pump starts work again with main frame, in oil pump suction pipeline, be filled with oil (or having a small amount of space), due in oil pump suction pipeline stored in air void little, the suction empty time shortens greatly, rapid formation pump oil is fully loaded.Eliminate the fuel-displaced delayed phenomenon of host-initiated gear pump, the fuel feeding of combustion motor lubrication system in time, reliably, meanwhile, the good Design of Performance of this project combustion motor structure has played fine supporting effect.
Claims (2)
1. an one-way non-return formula oil pump, is characterized in that, the connecting pipeline between described oil pump and oil sump is also arranged an one-way non-return device.
2. a kind of one-way non-return formula oil pump according to claim 1, it is characterized in that, described one-way non-return device comprises with lower part:
Oil pick-up tube: its oil-feed portion is horn mouth, the tube wall in fuel-displaced portion is provided with more than one oilhole, and aforementioned bell-mouthed wide end connects fuel-displaced portion, and narrow end connects oil sump oil suction, is provided with gear oil droplet and block bead pin in described oil pick-up tube; The diameter of gear oil droplet is greater than the internal diameter of the narrow end of horn mouth, is less than the internal diameter in fuel-displaced portion, and gear oil droplet can slide up and down between block bead pin and horn mouth along fuel-displaced portion;
Logical oil pocket: which is provided with oil pick-up tube import and oil outlet, the fuel-displaced portion of oil pick-up tube inserts in logical oil pocket completely from oil pick-up tube import.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420781340.8U CN204328435U (en) | 2014-12-12 | 2014-12-12 | A kind of one-way non-return formula oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420781340.8U CN204328435U (en) | 2014-12-12 | 2014-12-12 | A kind of one-way non-return formula oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204328435U true CN204328435U (en) | 2015-05-13 |
Family
ID=53164794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420781340.8U Expired - Fee Related CN204328435U (en) | 2014-12-12 | 2014-12-12 | A kind of one-way non-return formula oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204328435U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185515A (en) * | 2019-05-07 | 2019-08-30 | 吉林大学 | A kind of engine lubrication system with anti-siphon means |
-
2014
- 2014-12-12 CN CN201420781340.8U patent/CN204328435U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185515A (en) * | 2019-05-07 | 2019-08-30 | 吉林大学 | A kind of engine lubrication system with anti-siphon means |
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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 |
Granted publication date: 20150513 Termination date: 20191212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |