CN204716413U - A kind of combined piston having lubrication oil circuit - Google Patents
A kind of combined piston having lubrication oil circuit Download PDFInfo
- Publication number
- CN204716413U CN204716413U CN201520194959.3U CN201520194959U CN204716413U CN 204716413 U CN204716413 U CN 204716413U CN 201520194959 U CN201520194959 U CN 201520194959U CN 204716413 U CN204716413 U CN 204716413U
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- piston
- oil
- ring
- combined
- oblique wave
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Abstract
There is a combined piston for lubrication oil circuit, be made up of piston head, piston body, piston oblique wave oil distributing ring and upper and lower Combined gaseous ring.In piston head, piston body, there is cooling oil chamber, between the ring back of the body and annular groove bottom surface of piston oblique wave oil distributing ring, have ring shaped oil passage.When combined piston is in running order, when organic oil circulates, utilize same cooling oil sources therein, both can provide film lubrication to the normal operation of piston group, and internal cooling can be carried out to piston group again.
Description
Technical field:
The combined piston that the utility model relates to, it be a kind of on pump-gas boosting internal combustion engine the matching used special piston with lubrication oil circuit.
Background technique:
Pump-gas boosting internal combustion engine is a kind of on the basis of naturally aspirated engine, power per liter can be promoted the novel self-boosting engine (patent No.: ZL201010103209.2) of more than a times.The unit area power of its piston can reach 0.45kw/cm
2above, must cool piston.
Model utility content:
In order to the operating temperature of piston is controlled in allowed limits, must cool the piston of pump-gas boosting internal combustion engine.The utility model provides a kind of oil injection type combined piston, this piston can not only reduce the Maximum operating temperature of piston effectively, its operating temperature is controlled in the scope of a permission, can also together with " a kind of piston oblique wave oil distributing ring " (separate case application utility model patent), share its cooling oil sources, formed between piston and cylinder and ensure its normally necessary working oil membrane of work.
The utility model solves the technological scheme that its technical problem adopts: adopt a kind of combined piston with lubrication oil circuit, this piston is made up of piston head, piston body, Combined gaseous ring and the piston oblique wave oil distributing ring be arranged between twice Combined gaseous ring.Its piston head and piston body sentence interference fit form in cylndrical surface is pressed into one, and realizes axially locating by laminating end face.Cooling oil chamber is had in the inside of piston head, piston body assemblying body.Ring shaped oil passage is had between the ring back of the body and annular groove bottom surface of piston oblique wave oil distributing ring.Machine oil flows to by machine oil oil circuit that mark indicates and flows back to crankcase via the spill port of the spill port of center oil inlet pipe, center oilhole, oil inlet hole, ring shaped oil passage, ring shaped oil passage, cooling oil chamber, cooling oil chamber and annular back oil road.A kind of combined piston having lubrication oil circuit described in the utility model, with under the assembling condition of piston rod, cylinder, in the process that machine oil flows in ring shaped oil passage, by being fitted on cylinder wall and the oiling aperture of the oblique wave grommet slided in its surface, first machine oil is applied directly on cylinder wall, and then by the to-and-fro motion of piston, form piston and normally run necessary working oil membrane.Then, machine oil enters cooling oil chamber by the spill port of ring shaped oil passage again, after cooling, then by the spill port of cooling oil chamber, flows back to crankcase by the drainback passage between center oil pipe and piston rod to piston entirety.A kind ofly have in the combined piston of lubrication oil circuit described in the utility model, have a negative impact to eliminate the cloth oil effect of gas leakage to oblique wave oil distributing ring produced by upper and lower Combined gaseous ring, ring between upper or lower Combined gaseous ring and piston oblique wave oil distributing ring is all drilled with radial air leakage hole on the bank, and is communicated with the axial air leakage hole leading to pumping chamber.
The beneficial effects of the utility model are: utilize same oil sources, with more succinct structure, with more efficient mode of operation, solve the cooling problem of piston and the lubrication problem of piston group simultaneously.
Accompanying drawing illustrates:
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Fig. 1 is a plane view of the present utility model, shows its basic structure.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is the side view of Fig. 1, shows the circumferential position of each boring position.
Fig. 4 is the erection drawing of the utility model and piston rod, cylinder.
icon illustrates:
1, with the combined piston of lubrication oil circuit, 1-1, piston head, 1-2, piston body, 1-3, piston oblique wave oil distributing ring, 1-3-1, oblique wave grommet, 1-3-2, oiling aperture, 1-4, lower Combined gaseous ring, 1-5, upper Combined gaseous ring, 1-6, ring shaped oil passage, 1-7, radial air leakage hole, 1-8, axial air leakage hole, 1-9, center oilhole, 1-10, oil inlet hole, 1-11, laminating end face, 1-12, cylndrical surface, 1-13, screwed hole of centre, 1-14, the spill port of ring shaped oil passage, 1-15, cooling oil chamber, 1-16, the spill port of cooling oil chamber, 2, piston rod, 3, annular back oil road, 4, center oil pipe, 5, machine oil flows to mark, 6, cylinder, 6-1, cylinder wall, 7, pumping chamber
Embodiment:
As shown in Figure 1 and Figure 2, the combined piston 1 with lubrication oil circuit involved by the utility model, it is by piston head 1-1, piston body 1-2, piston oblique wave oil distributing ring 1-3, lower Combined gaseous ring 1-4, and upper Combined gaseous ring 1-5 forms.Piston head 1-1, piston body 1-2 are pressed into one in the form of 1-12 place, cylndrical surface interference fit, and realize axially locating by laminating end face 1-11.The cavity formed therein after piston head 1-1 and piston body 1-2 pressing is exactly cooling oil chamber 1-15.Ring shaped oil passage 1-6 between the ring back of the body of piston oblique wave oil distributing ring 1-3 and annular groove bottom surface.Enter ring shaped oil passage 1-6 to eliminate the gas leakage produced by upper and lower Combined gaseous ring or the cloth oil effect of piston oblique wave oil distributing ring 1-3 is had a negative impact, ring between upper and lower Combined gaseous ring 1-5 or 1-4 and piston oblique wave oil distributing ring 1-3 is all drilled with radial air leakage hole 1-7 on the bank, and communicates with the air leakage hole 1-8 of axis.Air leakage hole 1-8 then communicates with the pumping chamber 7 of piston lower portion.Oil inlet hole 1-10 is drilled with between oblique wave oil distributing ring groove bottom and center oilhole 1-9.The spill port 1-14 of ring shaped oil passage and the spill port 1-16 of cooling oil chamber is drilled with between oblique wave oil distributing ring groove bottom and screwed hole of centre 1-13.Fig. 3 is the circumferential cloth bitmap of each boring.Fig. 4 is the utility model, a kind of combined piston 1 with lubrication oil circuit and piston rod 2, the erection drawing of cylinder 6.Under the assembling condition of Fig. 4, the combined piston 1 with lubrication oil duct becomes threaded joint with the upper end of piston rod 2, and center oil pipe 4 inserts in the oilhole 1-9 of center.As machine oil flows to shown in mark 5, from the machine oil that center oil pipe 4 is pressed into, enter ring shaped oil passage 1-6 by oil inlet hole 1-10, to piston oblique wave oil distributing ring 1-3 fuel feeding.In the process that machine oil flows in ring shaped oil passage 1-6, mainly through being fitted in the oiling aperture 1-3-2 of the oblique wave grommet 1-3-1 that cylinder wall 6-1 also slides in its surface, next is only other hole, machine oil is applied directly on cylinder wall 6-1, and then by the operation of piston, the first time of oblique wave rubs the overlapping covering role grinding extension and adjacent oil film with the hands, the third time that the second time of inside and outside scraper ring rolls extension effect and compression ring rolls extension effect, on cylinder wall, formed evenly within the scope of the whole service of piston, continuously, reliable working oil membrane, thus ensure that piston group is normally run in the cylinder.After machine oil realizes the film lubrication to piston group by piston with oblique wave oil distributing ring 1-3, then enter cooling oil chamber 1-15 by the spill port 1-14 of ring shaped oil passage, piston entirety is cooled.Finally, the machine oil of cooling oil chamber is again by the spill port 1-16 of cooling oil chamber, and the drainback passage 3 between center oil pipe 3 and piston rod 2 flows back to crankcase.Because the machine oil flowed in ring shaped oil passage 1-6 adopts the working method of low-pressure large discharge full irrigation formula, no matter so which kind of working position motor is in, enough lubrication and cooling oil can be ensured.When motor is in outage state, pump oil pressure disappears.Because the oiling aperture 1-3-2 playing main fuel feeding effect is closed by cylinder wall 6-1, can be very little for total circulation passage of machine oil circulation, and in tiny distribution, capillary and hole suction-operated obvious, the machine oil retained in oil circuit can not flow into cylinder, can only be in storage dormant state.
Claims (3)
1. one kind has the combined piston (1) of lubrication oil circuit, and it is by piston head (1-1), piston body (1-2), piston is with oblique wave oil distributing ring (1-3), lower Combined gaseous ring (1-4), upper Combined gaseous ring (1-5) forms, the form that its piston head (1-1) and piston body (1-2) sentence interference fit at cylndrical surface (1-12) is pressed into one, and realize axially locating by laminating end face (1-11), it is characterized in that: at piston head (1-1), there is cooling oil chamber (1-15) inside of piston body (1-2) assemblying body, between the ring back of the body and the annular groove bottom surface of piston oblique wave oil distributing ring (1-3), have ring shaped oil passage (1-6), machine oil flows to mark (5) oil circuit that indicates via center oil inlet pipe (4) by machine oil, center oilhole (1-9), oil inlet hole (1-10), ring shaped oil passage (1-6), the spill port (1-14) of ring shaped oil passage, cooling oil chamber (1-15), spill port (1-16) and the annular back oil road (3) of cooling oil chamber flow back to crankcase.
2. a kind of combined piston (1) having lubrication oil circuit according to claim 1, it is characterized in that: with under the assembling condition of piston rod (2), cylinder (6), in the process that machine oil flows in ring shaped oil passage (1-6), by being fitted in the oiling aperture (1-3-2) of the upper oblique wave grommet (1-3-1) also slided in its surface of cylinder wall (6-1), machine oil is applied directly on cylinder wall (6-1).
3. a kind of combined piston (1) having lubrication oil circuit according to claim 1, it is characterized in that: be all drilled with radial air leakage hole (1-7) on the bank at upper and lower Combined gaseous ring (1-5) or the ring between (1-4) and piston oblique wave oil distributing ring (1-3), and be communicated with the axial air leakage hole (1-8) leading to pumping chamber (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520194959.3U CN204716413U (en) | 2015-03-28 | 2015-03-28 | A kind of combined piston having lubrication oil circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520194959.3U CN204716413U (en) | 2015-03-28 | 2015-03-28 | A kind of combined piston having lubrication oil circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204716413U true CN204716413U (en) | 2015-10-21 |
Family
ID=54315416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520194959.3U Expired - Fee Related CN204716413U (en) | 2015-03-28 | 2015-03-28 | A kind of combined piston having lubrication oil circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204716413U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425314A (en) * | 2020-04-22 | 2020-07-17 | 徐州弦波引擎机械科技有限公司 | Horizontal opposed engine piston |
| CN111425313A (en) * | 2020-03-20 | 2020-07-17 | 唐为民 | Combined piston with variable compression ratio |
-
2015
- 2015-03-28 CN CN201520194959.3U patent/CN204716413U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425313A (en) * | 2020-03-20 | 2020-07-17 | 唐为民 | Combined piston with variable compression ratio |
| CN111425314A (en) * | 2020-04-22 | 2020-07-17 | 徐州弦波引擎机械科技有限公司 | Horizontal opposed engine piston |
| CN111425314B (en) * | 2020-04-22 | 2024-05-10 | 徐州弦波引擎机械科技有限公司 | Horizontally opposed engine piston |
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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: 20151021 Termination date: 20160328 |