CN205078315U - Internal -combustion engine machine oil oil return structure - Google Patents
Internal -combustion engine machine oil oil return structure Download PDFInfo
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- CN205078315U CN205078315U CN201520793452.XU CN201520793452U CN205078315U CN 205078315 U CN205078315 U CN 205078315U CN 201520793452 U CN201520793452 U CN 201520793452U CN 205078315 U CN205078315 U CN 205078315U
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- machine oil
- oil
- hole
- combustion engine
- internal
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- 239000010721 machine oil Substances 0.000 title claims abstract description 65
- 239000003921 oil Substances 0.000 title claims abstract description 20
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 12
- 238000009825 accumulation Methods 0.000 claims description 14
- 238000000926 separation method Methods 0.000 claims description 13
- 239000010705 motor oil Substances 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 description 7
- 238000013016 damping Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model provides an internal -combustion engine machine oil oil return structure. This internal -combustion engine machine oil oil return structure includes that this baffle is configured as and favours the horizontal plane with cam room and separating of oil room divided baffle, and partly below to the internal -combustion engine main part of this baffle is extended and is formed machine oil and accumulate the hole, and the minimum position of accumulating the bottom surface in hole at machine oil is formed with machine oil and falls the hole, and this machine oil falls the hole site directly over the cam lid. Adopt this structure, can increase the volume of crankcase forced draft room, make machine oil leave machine oil savings hole, prevent that machine oil from returning the separating of oil room from the cam room.
Description
Technical field
The utility model relates to a kind of I. C. engine oil oil-returning structure, is particularly provided with the I. C. engine oil oil-returning structure of baffle plate cam chamber and oil separation chamber separated.
Background technique
In prior art, there is the I. C. engine oil oil-returning structure for guaranteeing machine oil to send back to from the oil separation chamber in valve mechanism cover cam chamber.In this structure, utilize the baffle plate be arranged in valve mechanism cover to form oil separation chamber.
In recent years; owing to having carried out all restrictions (the spark coil waterproof requirement of such as exhaust side, the rocking arm of air inlet side being arranged the requirement, pedestrian protecting requirement etc. of idle running (lostmotion) damping) to vehicle; thus, sometimes need above-mentioned baffle plate to be mounted obliquely within valve mechanism cover.In addition, during the resin between baffle plate with valve mechanism cover welds, in oily passage, there is the rough situation of seam and adopt laser bonding.Like this; for valve mechanism cover; consider appearance design requirement (appearance design based on pedestrian protecting regulation requires), functional requirement (restriction of the " loaded " position of functional part such as idle running damping, cam angle sensor etc.) and usage requirement (the configuration restriction of machine oil filler lid), often need baffle plate to be mounted obliquely within valve mechanism cover.For this reason, the volume of positive crankcase ventilation (PCV) room, outer gas side reduces, and causes the machine oil by gas blowby is taken away to increase.
In order to effectively utilize the inner space of internal-combustion engine, can considering that the below of a part of internal combustion engine main body by making above-mentioned baffle plate extends, increasing the volume of positive crankcase ventilation (PCV) room.But in the case, a part for positive crankcase ventilation (PCV) room deepens, cause position positive crankcase ventilation (PCV) path producing accumulation machine oil, thus machine oil reuse efficiency is reduced.
Model utility content
For above-mentioned technical problem, the purpose of this utility model is, provides a kind of by effectively utilizing the inner space of internal-combustion engine increase the volume of positive crankcase ventilation (PCV) room and machine oil can be impelled to leave machine oil savings hole, prevent machine oil from returning the I. C. engine oil oil-returning structure of oil separation chamber from cam chamber.
As the technological scheme solved the problems of the technologies described above, the utility model provides a kind of I. C. engine oil oil-returning structure, this I. C. engine oil oil-returning structure comprises baffle plate cam chamber and oil separation chamber separated, it is characterized in that: described baffle plate is configured to favour horizontal plane, the below of a part of internal combustion engine main body of described baffle plate extends and forms machine oil accumulation hole, be formed with machine oil falling-hole at the minimum position of the bottom surface in described machine oil accumulation hole, described machine oil falling-hole is positioned at directly over camb cap.
Above-mentioned I. C. engine oil oil-returning structure of the present utility model has the following advantages.The volume of positive crankcase ventilation (PCV) room can be expanded in machine oil accumulation hole, reduces the machine oil taken away by gas blowby.In addition, cheated by machine oil accumulation the machine oil collected and promptly can be sent to cam chamber via machine oil falling-hole.Further, the machine oil fallen from machine oil falling-hole can not be splashed oil separation chamber because cam rotates, thus can prevent machine oil from turning back to oil separation chamber from cam chamber.Its result, can prevent the oil level of cam chamber from reducing.
Accompanying drawing explanation
Fig. 1 is the plan view of the shape representing the baffle plate used in internal-combustion engine of the present utility model (motor) machine oil oil-returning structure.
Fig. 2 represents that baffle plate is mounted the sectional view of state on the engine, the A-A cross section of the baffle plate of Fig. 1 shown in figure.
Fig. 3 represents that baffle plate is mounted the sectional view of state on the engine, the B-B cross section of the baffle plate of Fig. 1 shown in figure.
Embodiment
Below, with reference to accompanying drawing, mode of execution of the present utility model is described.
In the utility model, adopt the structure of the baffle plate 1 shown in Fig. 1 for combustion motor (motor), internal-combustion engine of the present utility model (motor) machine oil oil-returning structure is described.
Baffle plate 1 is configured to, and long side direction is consistent with the inblock cylinder column direction of motor; Short side direction is vertical with above-mentioned long side direction.As shown in Figure 2, the end face of baffle plate 1 is installed in valve mechanism cover 2 obliquely along its short side direction.In present embodiment, the inclined angle alpha of the end face relative level face H of baffle plate 1 is such as set to 6 °.
As shown in Figures 1 and 2, the part (position of damping of not dallying) of baffle plate 1 extends to the below of engine main body, and this part defines machine oil accumulation hole 11.The volume of positive crankcase ventilation (PCV) room has been expanded in this machine oil accumulation hole 11, is conducive to the machine oil that minimizing gas blowby is taken away.But, occurring in order to avoid again the problem such as being taken away by gas blowby by the machine oil that gathers of machine oil accumulation hole 11, needing to impel the machine oil machine oil accumulated in hole to leave this machine oil accumulation hole, in case machine oil turns back to the structure of oil separation chamber from cam chamber.
On the bottom surface in the machine oil accumulation hole 11 of baffle plate 1, be formed for making machine oil fall machine oil falling-hole 11a in cam chamber from oil separation chamber.The forming position of machine oil falling-hole 11a is the position meeting following two conditions.
(A) to disembark the position farthest, position of oil export 3 (making machine oil flow to the outlet of intake manifold side, with reference to Fig. 3).
(B) directly over camb cap 4 (with reference to Fig. 3), in case machine oil is splashed in oil separation chamber because cam rotates.
Because machine oil falling-hole 11a need be arranged on the position lower than machine oil outlet 3, therefore, the bottom surface in machine oil accumulation hole 11 is formed, and bottom surface is on the whole roughly along the slope 11b that long side direction tilts.In the present embodiment, as shown in Figure 3, slope 11b is formed, and exports the end of 3 sides along its length towards the end height reduction gradually of opposition side from machine oil, and the angle of inclination beta of slope 11b with respect to the horizontal plane H is such as set to 2 °.
In addition, export the end of the opposition side of 3 from the forming part of machine oil falling-hole 11a to machine oil, the slope 11c that true dip direction is contrary with slope 11b is formed.In the present embodiment, the tilt angle of this slope 11c is such as set to 2 °, and machine oil falling-hole 11a is arranged on the minimum position of slope 11c.
Thus, can be fallen from machine oil falling-hole 11a by the machine oil that machine oil accumulation hole 11 gathers and promptly be delivered to cam chamber.
In addition, do not configure cam immediately below machine oil falling-hole 11a, and configure camb cap 4.Like this, the machine oil fallen from machine oil falling-hole 11a can not be splashed in oil separation chamber because cam rotates.Therefore, it is possible to prevent machine oil from turning back to oil separation chamber from cam chamber.
Claims (1)
1. an I. C. engine oil oil-returning structure, comprises baffle plate cam chamber and oil separation chamber separated, it is characterized in that:
Described baffle plate is configured to favour horizontal plane,
The below of a part of internal combustion engine main body of described baffle plate extends and forms machine oil accumulation hole,
Machine oil falling-hole is formed at the minimum position of the bottom surface in described machine oil accumulation hole,
Described machine oil falling-hole is positioned at directly over camb cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520793452.XU CN205078315U (en) | 2015-10-14 | 2015-10-14 | Internal -combustion engine machine oil oil return structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520793452.XU CN205078315U (en) | 2015-10-14 | 2015-10-14 | Internal -combustion engine machine oil oil return structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205078315U true CN205078315U (en) | 2016-03-09 |
Family
ID=55430729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520793452.XU Active CN205078315U (en) | 2015-10-14 | 2015-10-14 | Internal -combustion engine machine oil oil return structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205078315U (en) |
-
2015
- 2015-10-14 CN CN201520793452.XU patent/CN205078315U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |