CN204253125U - General gasoline engine self lubricating system - Google Patents
General gasoline engine self lubricating system Download PDFInfo
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- CN204253125U CN204253125U CN201420750959.2U CN201420750959U CN204253125U CN 204253125 U CN204253125 U CN 204253125U CN 201420750959 U CN201420750959 U CN 201420750959U CN 204253125 U CN204253125 U CN 204253125U
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- oil
- rocker arm
- upper rocker
- oil duct
- crankcase
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Abstract
The utility model discloses a kind of General gasoline engine self lubricating system, be connected with the first oil duct (3) between described oil sump (1) and crankcase (4), the first oil duct (3) be equipped with the first one-way valve (2); Be connected with the second oil duct (6) between crankcase (4) and upper rocker arm room (11), the second oil duct (6) be equipped with the second one-way valve (7); Be connected with the 3rd oil duct (8) between cam chamber (9) and oil sump (1), between cam chamber (9) and upper rocker arm room (11), be connected with the 4th oil duct (10); The 5th oil duct (12) is connected with between the import of upper rocker arm room (11) and deaerator (13); Deaerator (13) is built with oil cleaner screen (14), back oil road (16) is connected with between deaerator (13) and crankcase (4), back oil road (16) is equipped with the 3rd one-way valve (17), between deaerator (13) and air filter (18), is connected with return-air road (15).Adopt after said structure, there is the advantages such as simple and compact for structure, cost of production is low, high lubricating effect, efficiency are high, energy-conserving and environment-protective.
Description
Technical field
The invention relates to a kind of general gasoline engines lubricating fitting, particularly a kind of General gasoline engine self lubricating system not needing oil pump just can carry out proper lubrication to moving element.
Background technique
During engine operation, a lot of driving parts such as crankshaft main journal and main bearing, crank pin and connecting rod bearing, piston in combination and cylinder wall surface etc. are all under very little gap, do high speed relative movement, if do not lubricate these surfaces, between them, strong friction will be there is.Dry friction between metal surface not only increases the power loss of motor, accelerates the wearing and tearing on part time job surface, but also may, because fricative heat is by part surface scaling loss, cause motor to run well.
The main task of lubrication system is that the machine oil of supply some is to friction surface, oil film on friction surface can prevent metal surface from directly contacting, reduce the friction and wear between part, the mechanical admixture on friction surface can also be washed out, reduce abrasive wear, take away frictional heat, ensure that bearing etc. works under suitable state of temperature, also increase the sealing of piston and rings.Oil film on cylinder wall, can also protect friction surface, reduces corrosive wear.Therefore, lubrication system in minimizing mechanical loss, improve mechanical efficiency, extend internal-combustion engine working life etc. in play an important role.
Existing general purpose engine generally adopts combined lubricating system, as shown in Figure 1, uses pressure lubrication and splash lubrication simultaneously.The friction surface of high speed heavy load, as crankshaft main bearing, connecting rod bearing, camshaft bearing etc. use oil pump pressure lubrication, i.e. pressure lubrication, to ensure that lubrication is reliable.Load is gently as low in cylinder wall, Sliding velocity then uses splash lubrication, to simplify lubrication system architecture as wrist pin, the favourable place as cam and tappet of lubricating condition.Mainly there is following problem in said structure: one is because lubrication system carries out pressure lubrication and splash lubrication by oil pump, casing must design the oil duct of many complexity, not only increase design and cost of production, and lubricating efficiency is low.Two is that oil spout over-emitting black exhaust phenomenon can occur in working procedure, and machine oil loss is large, and environmental pollution is large.For this reason, many scientific research institutions and manufacturer have carried out development for the problems referred to above, but not yet have rational product to emerge so far.
Summary of the invention
For overcoming the above-mentioned defect that existing General gasoline engine lubrication system exists, the object of the invention be to provide a kind of simple and compact for structure, cost of production is low, working stability is reliable, high lubricating effect, petrol engine efficiency are high, the General gasoline engine self lubricating system of energy-conserving and environment-protective.
The invention solves the problems of the technologies described above adopted technological scheme, it comprises oil sump, crankcase, crank piston rod part, cam chamber, upper rocker arm room, deaerator, air filter, be connected with the first oil duct between described oil sump and crankcase, the first oil duct be equipped with the first one-way valve; Be connected with the second oil duct between crankcase and upper rocker arm room, the second oil duct be equipped with the second one-way valve; Be connected with the 3rd oil duct between cam chamber and oil sump, between cam chamber and upper rocker arm room, be connected with the 4th oil duct; The 5th oil duct is connected with between upper rocker arm room and the import of deaerator; Deaerator, built with oil cleaner screen, is connected with back oil road between the liquid-phase outlet of deaerator and crankcase, back oil road is equipped with the 3rd one-way valve, is connected with return-air road between the gaseous phase outlet of deaerator and air filter.
The further scheme of the invention, described crankcase and crank piston rod part composition displacement pump, crank piston rod part forms primarily of bent axle, connecting rod, piston and is arranged in crankcase, during piston stroking upward first and the 3rd one-way valve opens, the second closed check valve, during descent of piston first and the 3rd closed check valve, the second one-way valve opens.
The further scheme of the invention, cam, camshaft, lower shake-changing arm, pitman arm shaft, lining, tappet is mainly provided with in described cam chamber, the oil outlet that cam chamber is connected with the 3rd oil duct is arranged on position, the end, and the filler opening that cam chamber is connected with the 4th oil duct is arranged on a high position.
The further scheme of the invention, upper rocker arm, pitman arm shaft are mainly equipped with in described upper rocker arm indoor, the filler opening of upper rocker arm room is arranged on a high position, and the oil outlet that upper rocker arm room is connected with deaerator is arranged on a high position, and the oil outlet that upper rocker arm room is connected with cam chamber is arranged on low level.
After adopting said structure, compared with prior art have the following advantages and effect: one forms displacement pump by crankcase and crank piston rod part, the positive/negative pressure produced by the up-downgoing of piston realizes carrying lubricant oil, without the need to being equipped with oil pump in addition, and decrease corresponding complicated oil duct on casing, not only engine efficiency is high, low cost of manufacture, and machine is clean and tidy, elegant in appearance.Two is that pump oil mass is very sufficient, and high lubricating effect, component wear is little, long service life.Three is stockpile because mixed oil and gas that upper rocker arm room is unnecessary can not produce under the effect of displacement pump, but enter deaerator and be separated, air returns air filter, oil droplet returns the moving element in lubrication cam chamber by the 4th oil duct, and return crankcase again after completing lubrication, lubricant oil is recycled, thus solve the oil spout problem of motor, working stability is reliable, and machine oil loss is little, energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is the lubrication schematic diagram of existing general gasoline engines.
Fig. 2 is the lubrication schematic diagram of the invention.
Wherein 1 oil sump, 2 first one-way valves, 3 first oil ducts, 4 crankcases, 5 crank piston rod parts, 6 second oil ducts, 7 second one-way valves, 8 the 3rd oil ducts, 9 cam chambers, 10 the 4th oil ducts, 11 upper rocker arm rooms, 12 the 5th oil ducts, 13 deaerators, 14 oil cleaner screens, 15 return-air roads, 16 back oil roads, 17 the 3rd one-way valves, 18 air filters.
Embodiment
Shown in Fig. 2, for the specific embodiments of a kind of General gasoline engine self lubricating system of the invention, it comprises oil sump 1, crankcase 4, crank piston rod part 5, cam chamber 9, upper rocker arm room 11, deaerator 13, air filter 18, be connected with between described oil sump 1 and crankcase 4 on first oil duct 3, first oil duct 3 and first one-way valve 2 is housed; Be connected with between crankcase 4 and upper rocker arm room 11 on second oil duct 6, second oil duct 6 and second one-way valve 7 is housed; Be connected with the 3rd oil duct 8 between cam chamber 9 and oil sump 1, between cam chamber 9 and upper rocker arm room 11, be connected with the 4th oil duct 10; The 5th oil duct 12 is connected with between the import of upper rocker arm room 11 and deaerator 13; Deaerator 13, built with oil cleaner screen 14, is connected with back oil road 16 between the liquid-phase outlet of deaerator 13 and crankcase 4, back oil road 16 is equipped with the 3rd one-way valve 17, is connected with return-air road 15 between the gaseous phase outlet of deaerator 13 and air filter 18.
In order to ensure proper lubrication, described crankcase 4 and crank piston rod part 5 form displacement pump, crank piston rod part 5 forms primarily of bent axle, connecting rod, piston and is arranged in crankcase 4, during piston stroking upward first and the 3rd one-way valve 2,17 open, the second one-way valve 7 closes, during descent of piston first and the 3rd one-way valve 2,17 close, the second one-way valve 7 opens.
Cam, camshaft, lower shake-changing arm, pitman arm shaft, lining, tappet is mainly provided with in described cam chamber 9, the oil outlet that cam chamber 9 is connected with the 3rd oil duct 8 is arranged on position, the end, ensure the not long-pending oil of cam chamber, the filler opening that cam chamber 9 is connected with the 4th oil duct 10 is arranged on a high position, ensures that oil droplet is to moving element proper lubrication in cam chamber 9.
In described upper rocker arm room 11, upper rocker arm, pitman arm shaft are mainly housed, the filler opening of upper rocker arm room 11 is arranged on a high position, ensure that oil droplet splashes to upper rocker arm room 11, the oil outlet that upper rocker arm room 11 is connected with deaerator 13 is arranged on a high position, ensure only to discharge mixed oil and gas, the oil outlet that upper rocker arm room 11 is connected with cam chamber 9 is arranged on low level, facilitates oil droplet to reflux.
When the general gasoline engines of the invention works, the crank rotation in crank piston rod part 5 drives piston to do up-downgoing to-and-fro motion.When piston stroking upward moves, crankcase 4 volume increases and forms negative pressure and also produce suction, first and the 3rd one-way valve 2,17 open, the second one-way valve 7 closes, lubricant oil sucks crankcase 4 from oil sump 1, and the long-pending oil in deaerator 13 sucks crankcase 4.When descent of piston moves, crankcase 4 volume reduces to form malleation and also produces thrust, first and the 3rd one-way valve 2,17 close, lubricant oil no longer sucks crankcase 4, thrust second one-way valve 7 produced is opened, and lubrication oil droplet enters upper rocker arm room 11 by the second oil duct 6.
Lubricant oil sucks after crankcase 4, is smashed formation oil droplet by the bent axle of High Rotation Speed, and wherein a part of oil droplet splashes to when piston up-down on parts such as crankshaft main bearing, connecting rod bearing, wrist pin in crankcase 4 and cylinder wall and lubricates it; Enter upper rocker arm room 11 by the second oil duct 6 another part oil droplet opens the second one-way valve 7 when descent of piston after, the parts such as the upper rocker arm in upper rocker arm room 11, pitman arm shaft are lubricated.
The oil droplet entering a upper rocker arm room 11 wherein part enters cam chamber 9 by the 4th oil duct 10, lubricates, be back to oil sump 1 after completing lubrication task by the 3rd oil duct 8 to the parts such as cam, camshaft, lower shake-changing arm, pitman arm shaft, lining of the inside.
Deaerator 13 is entered by the 5th oil duct 12 after the oil droplet another part entering upper rocker arm room 11 mixes with air, the mixed oil and gas entering deaerator 13 becomes air and oil droplet through oil cleaner screen 14 filtering separation, air enters air filter 18 by return-air road 15, and oil droplet sucks crankcase 4 when piston stroking upward.Along with the rotation of bent axle, piston pumps and drives lubrication system periodic duty, thus completes the lubrication to workpiece.
The above; just the specific embodiment of the invention, not makes any pro forma restriction, on the technological scheme basis not departing from the invention to the invention; done simple modification, equivalent variations or modification, all fall into the protection domain of the invention.
Claims (4)
1. a General gasoline engine self lubricating system, comprise oil sump (1), crankcase (4), crank piston rod part (5), cam chamber (9), upper rocker arm room (11), deaerator (13), air filter (18), it is characterized in that: be connected with the first oil duct (3) between described oil sump (1) and crankcase (4), the first oil duct (3) be equipped with the first one-way valve (2); Be connected with the second oil duct (6) between crankcase (4) and upper rocker arm room (11), the second oil duct (6) be equipped with the second one-way valve (7); Be connected with the 3rd oil duct (8) between cam chamber (9) and oil sump (1), between cam chamber (9) and upper rocker arm room (11), be connected with the 4th oil duct (10); The 5th oil duct (12) is connected with between the import of upper rocker arm room (11) and deaerator (13); Deaerator (13) is built with oil cleaner screen (14), back oil road (16) is connected with between the liquid-phase outlet of deaerator (13) and crankcase (4), back oil road (16) is equipped with the 3rd one-way valve (17), between the gaseous phase outlet of deaerator (13) and air filter (18), is connected with return-air road (15).
2. General gasoline engine self lubricating system according to claim 1, it is characterized in that: described crankcase (4) and crank piston rod part (5) composition displacement pump, crank piston rod part (5) forms primarily of bent axle, connecting rod, piston and is arranged in crankcase (4), during piston stroking upward first and the 3rd one-way valve (2,17) open, the second one-way valve (7) closes, during descent of piston first and the 3rd one-way valve (2,17) close, the second one-way valve (7) opens.
3. General gasoline engine self lubricating system according to claim 1 and 2, it is characterized in that: described cam chamber is mainly provided with cam, camshaft, lower shake-changing arm, pitman arm shaft, lining, tappet in (9), the oil outlet that cam chamber (9) is connected with the 3rd oil duct (8) is arranged on position, the end, and the filler opening that cam chamber (9) is connected with the 4th oil duct (10) is arranged on a high position.
4. General gasoline engine self lubricating system according to claim 3, it is characterized in that: in described upper rocker arm room (11), upper rocker arm, pitman arm shaft are mainly housed, the filler opening of upper rocker arm room (11) is arranged on a high position, the oil outlet that upper rocker arm room (11) is connected with deaerator (13) is arranged on a high position, and the oil outlet that upper rocker arm room (11) are connected with cam chamber (9) is arranged on low level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420750959.2U CN204253125U (en) | 2014-12-04 | 2014-12-04 | General gasoline engine self lubricating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420750959.2U CN204253125U (en) | 2014-12-04 | 2014-12-04 | General gasoline engine self lubricating system |
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| CN204253125U true CN204253125U (en) | 2015-04-08 |
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| CN201420750959.2U Active CN204253125U (en) | 2014-12-04 | 2014-12-04 | General gasoline engine self lubricating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454074A (en) * | 2014-12-04 | 2015-03-25 | 星月集团有限公司 | Novel universal gasoline engine self-lubricating system |
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2014
- 2014-12-04 CN CN201420750959.2U patent/CN204253125U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454074A (en) * | 2014-12-04 | 2015-03-25 | 星月集团有限公司 | Novel universal gasoline engine self-lubricating system |
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