CN212296537U - Lubricating oil mist shunting device for engine - Google Patents
Lubricating oil mist shunting device for engine Download PDFInfo
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- CN212296537U CN212296537U CN202020490632.1U CN202020490632U CN212296537U CN 212296537 U CN212296537 U CN 212296537U CN 202020490632 U CN202020490632 U CN 202020490632U CN 212296537 U CN212296537 U CN 212296537U
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- oil mist
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- lubricating oil
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Abstract
The utility model discloses a lubricating oil mist shunting device for an engine, which comprises a crankcase, wherein a crankshaft connecting rod is assembled in the crankcase, the tail part of the crankshaft connecting rod is connected with an oil throwing rod, an inlet valve is arranged at the top of the crankcase, a cam is arranged in the inlet valve, the cam is connected with the crankshaft connecting rod through a transmission chain, and an exhaust valve is arranged at the top of the crankcase; an oil mist separation cavity is arranged in the middle of the side face of the crankcase, and an oil inlet pipe communicated with the oil mist separation cavity is arranged on the outer side face of the crankcase. This lubricating oil mist diverging device for engine can separate the lubricating oil mist in the bent axle case to can reduce the lubricating oil mist pressure in the bent axle case, avoid lubricating oil mist to reveal the machine trouble that leads to, also prevent wherein that residual lubricating oil from directly getting rid of outside polluted air simultaneously, improve small-size engine's lubricated effect, guaranteed small-size engine's economic nature and durability.
Description
Technical Field
The utility model relates to a small-size engine technical field specifically is a lubricating oil mist diverging device for engine.
Background
When a small engine works, key components such as an intake valve, an exhaust valve, a cam, a crankshaft connecting rod and the like must rely on oil mist provided by an internal lubricating system to ensure the lubricating and heat dissipation requirements under the condition of high-speed rotation. And lubricating oil mist is sealed in the crankcase, and under high-speed high temperature condition, pressure constantly expands the grow, if not in time control oil mist pressure in certain extent, can cause the sealing member to damage and produce lubricating oil mist and reveal, can even lead to the machine to scrap because of lacking the lubrication in serious time. At present, in a small engine lubricating system, a lubricating oil mist shunting device is generally not arranged, and the problem of faults caused by lubricating oil leakage can occur in the working process.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, a lubricating oil mist diverging device for engine is provided, can separate the lubricating oil mist in the crankcase, and can reduce the lubricating oil mist pressure in the crankcase, avoided lubricating oil mist to reveal and the machine trouble that leads to, also prevent wherein the outside polluted air of residual lubricating oil direct exclusion simultaneously, the lubricated effect of small-size engine has been improved, the economic nature and the durability of small-size engine have been guaranteed, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: the lubricating oil mist shunting device for the engine comprises a crankcase, wherein a crankshaft connecting rod is assembled inside the crankcase, an oil throwing rod is connected to the tail of the crankshaft connecting rod, an inlet valve is arranged at the top of the crankcase, a cam is arranged inside the inlet valve and connected with the crankshaft connecting rod through a transmission chain, and an exhaust valve is arranged at the top of the crankcase.
The oil mist separating device is characterized in that an oil mist separating cavity is arranged in the middle of the side face of the crankcase, an oil inlet pipe communicated with the oil mist separating cavity is arranged on the outer side face of the crankcase, an oil inlet nozzle of the oil inlet pipe is located inside the crankcase, a one-way valve is arranged inside the oil inlet pipe, a labyrinth passage is arranged inside the oil mist separating cavity, a silk screen separator is arranged inside the labyrinth passage, and an oil return pipe communicated with the crankcase is arranged at the bottom of the oil mist separating cavity.
As an optimized technical scheme of the utility model, the opening part of oil mist separation chamber is fixed with the separation chamber valve gap and sealed the pad through fastening screw.
As a preferred technical scheme of the utility model, the top of oil mist separation chamber is equipped with pressure release oil pipe, pressure release oil pipe's oil-out is equipped with the empty filter that communicates with the engine combustion chamber.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses lubricating oil mist diverging device for engine can separate the lubricating oil mist in the bent axle case to can reduce the lubricating oil mist pressure in the bent axle case, avoided lubricating oil mist to reveal and the machine trouble that leads to, also prevent simultaneously that wherein remaining lubricating oil directly gets rid of outer contaminated air, improved small-size engine's lubricated effect, guaranteed small-size engine's economic nature and durability.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
fig. 3 is a side view of the structure of fig. 1.
In the figure: 1 crankcase, 2 crankshaft connecting rods, 3 oil inlet nozzles, 4 oil inlet pipes, 5 one-way valves, 6 oil mist separation chambers, 7 wire mesh separators, 8 pressure relief oil pipes, 9 air filters, 10 inlet valves, 11 cams, 12 transmission chains, 13 exhaust valves, 14 separation chamber valve covers, 15 sealing gaskets, 16 fastening screws, 17 oil throwing rods and 18 oil return pipes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a lubricating oil mist diverging device for engine, includes crankcase 1, and the inside of crankcase 1 is equipped with crankshaft connecting rod 2, and crankshaft connecting rod 2's end connection has oil thrower 17, and the top of crankcase 1 is equipped with intake valve 10, and the inside of intake valve 10 is equipped with cam 11, and cam 11 is connected with crankshaft connecting rod 2 through drive chain 12, and the top of crankcase 1 is equipped with exhaust valve 13.
An oil mist separation cavity 6 is arranged in the middle of the side face of the crankcase 1, an oil inlet pipe 4 communicated with the oil mist separation cavity 6 is arranged on the outer side face of the crankcase 1, an oil inlet nozzle 3 of the oil inlet pipe 4 is located inside the crankcase 1, a one-way valve 5 is arranged inside the oil inlet pipe 4, a labyrinth passage is arranged inside the oil mist separation cavity 6, a silk screen separator 7 is arranged inside the labyrinth passage, the silk screen separator 7 is matched with the oil mist separation cavity 6 of the labyrinth passage to decompose lubricating oil mist into two parts, namely liquid lubricating oil drops and residual oil.
The bottom of the oil mist separation cavity 6 is provided with an oil return pipe 18 communicated with the crankcase 1, and liquid lubricating oil drops flow back to the crankcase 1 through the oil return pipe 18 at the bottom of the oil mist separation cavity 6 to participate in lubrication again.
The top of the oil mist separation cavity 6 is provided with a pressure relief oil pipe 8, an oil outlet of the pressure relief oil pipe 8 is provided with an air filter 9 communicated with the engine combustion chamber, and residual oil gas can enter the air filter 9 through the pressure relief oil pipe 8 and enter the combustion chamber again to participate in combustion, so that the pressure of lubricating oil mist in the crankcase 1 is reduced.
The opening of the oil mist separation chamber 6 is fixed with a separation chamber valve cover 14 and a gasket 15 by a fastening screw 16, and the separation chamber valve cover 14 and the gasket 15 are fixed by the fastening screw 16 to seal the oil mist separation chamber 6.
The lubricating oil mist shunting device for the whole engine can separate the lubricating oil mist in the crankcase 1, can reduce the pressure of the lubricating oil mist in the crankcase 1, avoids machine faults caused by leakage of the lubricating oil mist, simultaneously prevents residual lubricating oil from directly removing outside polluted air, improves the lubricating effect of the small engine, and ensures the economy and the durability of the small engine.
When in use:
the lubricating oil is stored at the bottom of the crankcase 1, and the bottom of the oil throwing rod 17 is immersed in the lubricating oil; the lubricating oil is continuously flapped by the high-speed rotation of an oil throwing rod 17 at the tail part of the crankshaft connecting rod 2, so that oil mist which is dispersed to all directions is formed, and the main moving parts such as the crankshaft connecting rod 2, an inlet valve 10, a cam 11, a transmission chain 12, an exhaust valve 13 and the like are lubricated;
along with the time and the rising of the working temperature, the pressure of the oil mist in the crankcase 1 rises continuously, the lubricating oil mist enters the oil inlet pipe 4 from the oil inlet nozzle 3, and when the accumulated pressure of the oil mist reaches a certain value, the high-pressure oil mist opens the check valve 5 and enters the oil mist separation cavity 6;
the silk screen separator 7 is matched with the oil mist separation cavity 6 of the labyrinth passage to decompose the lubricating oil mist into two parts, namely liquid lubricating oil drops and residual oil gas;
liquid lubricating oil drops flow back into the crankcase 1 through an oil return pipe 18 at the bottom of the oil mist separation cavity 6 to participate in lubrication again;
the other part of the residual oil gas enters the air filter 9 through the pressure relief oil pipe 8 and reenters the combustion chamber to participate in combustion, so that the pressure of the lubricating oil mist in the crankcase 1 is reduced.
The utility model discloses can separate the lubricating oil mist in the crankcase 1 to can reduce the lubricating oil mist pressure in the crankcase 1, avoid lubricating oil mist to reveal and the machine trouble that leads to, also prevent simultaneously that wherein residual lubricating oil from directly getting rid of outer contaminated air, improve small-size engine's lubricated effect, guarantee small-size engine's economic nature and durability.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A lubricating oil mist flow dividing device for an engine, comprising a crankcase (1), characterized in that: a crankshaft connecting rod (2) is assembled in the crankcase (1), the tail of the crankshaft connecting rod (2) is connected with an oil throwing rod (17), an intake valve (10) is arranged at the top of the crankcase (1), a cam (11) is arranged in the intake valve (10), the cam (11) is connected with the crankshaft connecting rod (2) through a transmission chain (12), and an exhaust valve (13) is arranged at the top of the crankcase (1);
the oil-gas separation device is characterized in that an oil mist separation cavity (6) is arranged in the middle of the side face of the crankcase (1), an oil inlet pipe (4) communicated with the oil mist separation cavity (6) is arranged on the outer side face of the crankcase (1), an oil inlet nozzle (3) of the oil inlet pipe (4) is located inside the crankcase (1), a one-way valve (5) is arranged inside the oil inlet pipe (4), a labyrinth passage is formed inside the oil mist separation cavity (6), a silk screen separator (7) is arranged inside the labyrinth passage, and an oil return pipe (18) communicated with the crankcase (1) is arranged at the bottom of the oil mist separation cavity (6).
2. The oil mist diversion device for an engine according to claim 1, wherein: and a separation cavity valve cover (14) and a sealing gasket (15) are fixed at the opening of the oil mist separation cavity (6) through a fastening screw (16).
3. The oil mist diversion device for an engine according to claim 1, wherein: the top of the oil mist separation cavity (6) is provided with a pressure relief oil pipe (8), and an oil outlet of the pressure relief oil pipe (8) is provided with an air filter (9) communicated with an engine combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020490632.1U CN212296537U (en) | 2020-04-07 | 2020-04-07 | Lubricating oil mist shunting device for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020490632.1U CN212296537U (en) | 2020-04-07 | 2020-04-07 | Lubricating oil mist shunting device for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212296537U true CN212296537U (en) | 2021-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020490632.1U Active CN212296537U (en) | 2020-04-07 | 2020-04-07 | Lubricating oil mist shunting device for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212296537U (en) |
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2020
- 2020-04-07 CN CN202020490632.1U patent/CN212296537U/en active Active
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