CN204175362U - Engine crankshaft box gas oil separation structure - Google Patents
Engine crankshaft box gas oil separation structure Download PDFInfo
- Publication number
- CN204175362U CN204175362U CN201420595380.3U CN201420595380U CN204175362U CN 204175362 U CN204175362 U CN 204175362U CN 201420595380 U CN201420595380 U CN 201420595380U CN 204175362 U CN204175362 U CN 204175362U
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- CN
- China
- Prior art keywords
- oil
- left crankcase
- waste gas
- cylinder head
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a kind of engine crankshaft box gas oil separation structure, comprise left crankcase, the side of described left crankcase has a timing chamber, and left crankcase has two oilholes be communicated with timing chamber, the lubricant oil injected from cylinder head top cover can be back to oil sump by two oilholes; Described left crankcase has the Oil-gas Separation hole that at least one is communicated with timing chamber, the waste gas of left crankcase inside can enter the waste gas mouth discharge of cylinder head top cover through Oil-gas Separation hole.The utility model adds Oil-gas Separation hole at the position, timing chamber of left crankcase, avoid waste gas and lubricant oil generation convection current, allow waste gas and lubricant oil can normal circulation separately, solve the oil spout problem of cylinder head cover, the mode making the mode of common CG Engine Series crankcase body waste air become cylinder head cover waste air is achieved, and finally solves the problem of CG Engine Series waste gas mouth oil spout.
Description
Technical field
The utility model belongs to technical field of engines, particularly relates to a kind of engine crankshaft box gas oil separation structure.
Background technique
Under the pressure that engine interior air-flow reciprocating motion of the pistons produces and piston ring fluting place, the waste gas of altering is formed, the waste gas of common CG Engine Series is through the waste gas mouth 2 at crankcase body 1 inner labyrinth 11 place and (as shown in Figure 1) of discharging, but there is waste gas mouth fuel injection event at fast state in common CG Engine Series crankcase body, and along with the increase fuel injection event of discharge capacity more serious.In order to evade the problem of engine crankshaft box waste gas mouth oil spout, during to 157FMJ-2 engine design, waste gas mouth is arranged in cylinder head cover place, Fig. 2 is the structural representation of 157FMJ-2 engine left crankcase body 3, find through experiment, the waste gas of 157FMJ-2 engine housing inside needs through via hole 31, the waste gas mouth that hole 32 enters cylinder head top cover is discharged, the lubricating oil of cylinder head top cover needs through via hole 31, hole 32 is back to oil sump, therefore waste gas and lubricant oil convection current is caused, waste gas and lubricant oil all can not normally circulate at engine interior, the air pressure that box house constantly increases is hoarded in timing chamber by lubricant oil, and ejected engine interior by waste gas, there is waste gas mouth fuel injection event, in order to solve the problem of 157FMJ-2 oil-spraying of engine exhaust nozzle, the utility model is by the redesign to position, 157FMJ-2 engine left crankcase body timing chamber, allow waste gas and lubricant oil normal circulation all separately, successfully solve the fuel injection event of cylinder head cover, the mode making the mode of common CG Engine Series crankcase body waste air become cylinder head cover waste air is achieved, final solution CG Engine Series waste gas mouth oil spout problem.
Model utility content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of engine crankshaft box gas oil separation structure, it is by the redesign to position, engine left crankcase body timing chamber, allow waste gas and lubricant oil can normal circulation separately, successfully solve the oil spout problem of cylinder head cover, the mode making the mode of common CG Engine Series crankcase body waste air become cylinder head cover waste air is achieved, and finally solves the problem of CG Engine Series waste gas mouth oil spout.
In order to solve the problems of the technologies described above, the utility model have employed following technological scheme:
A kind of
engine crankshaft box gas oil separation structure, comprise left crankcase, the side of described left crankcase has a timing chamber, and left crankcase has two oilholes be communicated with timing chamber, and the lubricant oil injected from cylinder head top cover can be back to oil sump by two oilholes; Described left crankcase has the Oil-gas Separation hole that at least one is communicated with timing chamber, the waste gas of left crankcase inside can enter the waste gas mouth discharge of cylinder head top cover through Oil-gas Separation hole.
Further, in two described oilholes, the diameter of one of them oilhole is increased to 12mm.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model adds at least one Oil-gas Separation hole at the position, timing chamber of 157FMJ-2 engine left crankcase body, during work, the lubricant oil injected from cylinder head top cover is back to oil sump by two oilholes, the waste gas of box house enters the waste gas mouth discharge of cylinder head top cover through Oil-gas Separation hole, doing so avoids waste gas and lubricant oil generation convection current, allow waste gas and lubricant oil can normal circulation separately, successfully solve the oil spout problem of cylinder head cover, the mode making the mode of common CG Engine Series crankcase body waste air become cylinder head cover waste air is achieved, finally solve the problem of CG Engine Series waste gas mouth oil spout.
2, the utility model is on the original basis of 157FMJ-2 engine left crankcase body, the diameter of one of them oilhole is expanded as 12mm by 10mm, increases the flow of lubricant oil, thus meet the needs lubricated at high speeds.
accompanying drawing explanation
Fig. 1 is the structural representation of common CG Engine Series crankcase body;
Fig. 2 is the planimetric map before 157FMJ-2 engine left crankcase structural reform is entered;
Fig. 3 is the erection drawing of 157FMJ-2 motor;
Fig. 4 is the planimetric map after the utility model 157FMJ-2 engine left crankcase structural reform is entered;
Fig. 5 is the stereogram after the utility model 157FMJ-2 engine left crankcase structural reform is entered;
Fig. 6 is the Oil-gas Separation theory diagram after the utility model 157FMJ-2 engine left crankcase structural reform is entered.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
See accompanying drawing, the cylinder portion of 157FMJ-2 motor is arranged on the side of left crankcase 3, the side of left crankcase 3 has a timing chamber 33, left crankcase 3 has the first oilhole 31 and the second oilhole 32 be communicated with timing chamber 33, the lubricant oil injected from cylinder head top cover 4 can be back to oil sump 5 by the first oilhole 31 and the second oilhole 32; Left crankcase 3 also has two Oil-gas Separation holes 34 be communicated with timing chamber 33, the waste gas of box house enters the waste gas mouth discharge of cylinder head top cover 4 through Oil-gas Separation hole 34.
It is 7mm Oil-gas Separation hole 34 that the utility model adds two diameters at the position, timing chamber of 157FMJ-2 engine left crankcase body, during work, the lubricant oil injected from cylinder head top cover 4 is back to oil sump 5 by the first oilhole 31 and the second oilhole 32, the waste gas of box house enters the waste gas mouth discharge of cylinder head top cover 4 through two Oil-gas Separation holes 34, doing so avoids waste gas and lubricant oil generation convection current, allow waste gas and lubricant oil can normal circulation separately, successfully solve the oil spout problem of cylinder head cover, the mode making the mode of common CG Engine Series crankcase body waste air become cylinder head cover waste air is achieved, finally solve the problem of CG Engine Series waste gas mouth oil spout.
As the further improvement to technique scheme, the diameter of the first oilhole 31 oilhole expands as 12mm by 10mm, increases the flow of lubricant oil, thus meets the needs lubricated at high speeds.
Finally it should be noted that, above embodiment is only in order to illustrate the technical solution of the utility model but not restriction technologies scheme, although claimant has been described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, those are modified to the technical solution of the utility model or equivalent replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of right of the present utility model.
Claims (2)
1. one kind
engine crankshaft box gas oil separation structure, comprise left crankcase (3), the side of described left crankcase (3) has a timing chamber (33), and left crankcase (3) has two oilholes (31 be communicated with timing chamber (33), 32), the lubricant oil injected from cylinder head top cover (4) can by two oilholes (31, 32) oil sump (5) is back to, it is characterized in that, described left crankcase (3) has the Oil-gas Separation hole (34) that at least one is communicated with timing chamber (33), the waste gas of left crankcase (3) inside can enter the waste gas mouth discharge of cylinder head top cover (4) through Oil-gas Separation hole (34).
2. according to claim 1
engine crankshaft box gas oil separation structure, it is characterized in that, in described two oilholes (31,32), the diameter of one of them oilhole (31) is increased to 12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420595380.3U CN204175362U (en) | 2014-10-15 | 2014-10-15 | Engine crankshaft box gas oil separation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420595380.3U CN204175362U (en) | 2014-10-15 | 2014-10-15 | Engine crankshaft box gas oil separation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175362U true CN204175362U (en) | 2015-02-25 |
Family
ID=52564179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420595380.3U Expired - Fee Related CN204175362U (en) | 2014-10-15 | 2014-10-15 | Engine crankshaft box gas oil separation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204175362U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389691A (en) * | 2014-10-15 | 2015-03-04 | 力帆实业(集团)股份有限公司 | Engine crankcase body oil-gas separation structure |
-
2014
- 2014-10-15 CN CN201420595380.3U patent/CN204175362U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389691A (en) * | 2014-10-15 | 2015-03-04 | 力帆实业(集团)股份有限公司 | Engine crankcase body oil-gas separation structure |
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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: 20150225 Termination date: 20191015 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |