CN203742818U - Cylinder cover of internal combustion engine - Google Patents
Cylinder cover of internal combustion engine Download PDFInfo
- Publication number
- CN203742818U CN203742818U CN201420162116.0U CN201420162116U CN203742818U CN 203742818 U CN203742818 U CN 203742818U CN 201420162116 U CN201420162116 U CN 201420162116U CN 203742818 U CN203742818 U CN 203742818U
- Authority
- CN
- China
- Prior art keywords
- oil
- cylinder cover
- cylinder head
- hole
- combustion engine
- 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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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a cylinder cover of an internal combustion engine. A valve spring mounting hole is formed in the middle of a cylinder cover body, a pushing rod hole and an oiling hole are formed in one side of the cylinder cover body, at least one oil returning hole is partly formed in the cylinder cover body on the other side corresponding to the pushing rod hole, the top of the cylinder cover is a diversion slope which is sloped gradually to the direction of the oil returning holes along the oiling hole. By the aid of the cylinder cover, lubricating oil in an oil tank at the top of the cylinder cover body can return to an oil base shell smoothly when the internal combustion engine is inclined transversely and longitudinally, the problems of coking and aging since a large amount of lubricating oil is accumulated in the oil tank of the cylinder cover body and cannot be cooled and filtered for a long time are solved fundamentally, and the problem of engine oil consumption is avoided fundamentally.
Description
Technical field
The utility model relates to internal-combustion engine, particularly a kind of cylinder head of internal-combustion engine.
Background technique
At present, be provided with main oil gallery and oil sump in the cylinder head of internal-combustion engine, lubricant oil is by parts such as main oil gallery camshaft lubrications, push rod (tappet), pitman arm shaft, then collects lubricant oil by oil sump and is back to the oil sump bottom internal-combustion engine.The oil sump position of cylinder head is furnished with the structures such as push-rod hole, valve spring mounting hole, cylinder bolt installation base, push rod (tappet) hole doubles as spill port simultaneously, the lubricant oil earial drainage that top surface of cylinder cover oil sump is accumulated is to oil sump, valve spring mounting hole is mainly for supporting valve spring, and valve spring is played to leading role.
In the cylinder head of above-mentioned traditional combustion engine, for ensureing the guiding of valve spring, valve spring mounting hole is generally designed to counterbore, in internal combustion engine operation process, parts of lubricating oil enters in valve spring mounting hole and cannot discharge, due to moving up and down of valve spring, lubricant oil in counterbore is splashed, cause oil moisture content in oil sump to increase sharply, mist of oil enters the deaerator in valve mechanism cover with crankcase waste gas, the work load of deaerator is increased, oil gas sub-argument is unclear, and mist of oil enters firing chamber and participates in burning, causes internal-combustion engine to occur the problem of burn oil.And, cylinder head only uses push-rod hole as drainback passage conventionally, when internal-combustion engine is worked on terminal equipment, when terminal equipment is during to other lopsidedness, lubricant oil cannot reflux in time, causes a large amount of lubricant oil to accumulate in that cylinder head oil sump is medium-term and long-term be can not get cooling and filter, easily coking and aging, shorten the oil change cycle, even damage internal-combustion engine important spare part.
The information that is disclosed in this background technique part is only intended to increase the understanding to general background of the present utility model, and should not be regarded as admitting or imply that in any form this information structure has been the known prior art of persons skilled in the art.
Model utility content
The purpose of this utility model is to provide a kind of cylinder head of internal-combustion engine, and the oil return of cylinder head top is unimpeded, can avoid internal-combustion engine to occur burn oil phenomenon.
For achieving the above object, the utility model provides a kind of cylinder head of internal-combustion engine, the intermediate portion of this cylinder head has valve spring mounting hole, one side of this cylinder head has push-rod hole and upper oil hole, cylinder head part with respect to the opposite side of push-rod hole is provided with at least one spill port, the end face of this cylinder head is water conservancy diversion inclined-plane, and water conservancy diversion inclined-plane tilts gradually along upper oil hole to spill port direction.
Preferably, the periphery of valve spring mounting hole is provided with at least one drain pan, and the bottom surface of drain pan arranges lower than the bottom of valve spring mounting hole, and drain pan is communicated with valve spring mounting hole with water conservancy diversion inclined-plane.
Compared with prior art, the utlity model has following beneficial effect: the top of cylinder head is water conservancy diversion inclined-plane and spill port is set, can ensure that top surface of cylinder cover oil sump lubricant oil all can smooth and easyly be back to oil sump all around in the time that internal-combustion engine tilts, fundamentally solve a large amount of lubricant oil accumulate in cylinder head oil sump medium-term and long-term can not get cooling and filter, cause coking and aging problem; Valve spring mounting hole periphery is provided with drain pan, can effectively reduce because of the lubricant oil in counterbore and assemble and produce mist of oil problem under the condition that does not increase cost of production, fundamentally avoids the generation of burn oil problem.
Brief description of the drawings
Fig. 1 is according to the schematic top plan view of the cylinder head of internal-combustion engine of the present utility model;
Fig. 2 is the sectional view along A-A direction in Fig. 1;
Fig. 3 is the sectional view along B-B direction in Fig. 1.
Main description of reference numerals:
1-cylinder head, 2-push-rod hole, 3-upper oil hole, 4-valve spring mounting hole, 5-drain pan, 6-water conservancy diversion inclined-plane, 7-spill port.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subject to the restriction of embodiment.
Unless separately there is other clearly to represent, otherwise in whole specification and claims, term " comprises " or its conversion was stated being understood to include as " comprising " or " including " etc. element or constituent element, and do not get rid of other element or other constituent element.
As shown in Figure 1, according to the cylinder head 1 of a kind of internal-combustion engine of the utility model embodiment, the intermediate portion of this cylinder head 1 has valve spring mounting hole 4, one side of this cylinder head 1 has push-rod hole 2 and upper oil hole 3(referring to Fig. 3), cylinder head part with respect to the opposite side of push-rod hole 2 is provided with at least one spill port 7, the end face of this cylinder head 1 is that water conservancy diversion inclined-plane 6(is referring to Fig. 2), water conservancy diversion inclined-plane 6 tilts gradually along upper oil hole 3 to spill port 7 directions.The periphery of valve spring mounting hole 4 is provided with at least one drain pan 5, and the bottom surface of drain pan 5 arranges lower than the bottom of valve spring mounting hole 4, and drain pan 5 is communicated with valve spring mounting hole 4 with water conservancy diversion inclined-plane 6.
In the present embodiment, major part (removing the structure such as push-rod hole 2, the valve spring mounting hole 4) position at the top of cylinder head 1 is water conservancy diversion inclined-plane 6, oil return is unimpeded, guarantee lubricant oil major part is got back to oil sump from spill port 7, valve spring mounting hole 4 peripheries are provided with a drain pan 5, under the condition that does not increase cost of production, can effectively reduce because of the lubricant oil in counterbore and assemble and produce mist of oil problem, fundamentally avoid the generation of burn oil problem.The position of spill port 7 is chosen in the other side of every cylinder tappet bore of cylinder head 1, can ensure that top surface of cylinder cover oil sump lubricant oil all can smooth and easyly be back to oil sump all around in the time that internal-combustion engine tilts, fundamentally solve a large amount of lubricant oil accumulate in cylinder head oil sump medium-term and long-term can not get cooling and filter, cause coking and aging problem.
The aforementioned description to concrete exemplary of the present utility model is in order to illustrate and the object of illustration.These descriptions not want the utility model to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.Exemplary embodiment is selected and the object described is to explain certain principles of the present utility model and practical application thereof, thereby made those skilled in the art can realize and utilize various exemplary of the present utility model and various selection and change.Scope of the present utility model is intended to be limited by claims and equivalents thereof.
Claims (2)
1. the cylinder head of an internal-combustion engine, the intermediate portion of this cylinder head has valve spring mounting hole, one side of this cylinder head has push-rod hole and upper oil hole, it is characterized in that, cylinder head part with respect to the opposite side of described push-rod hole is provided with at least one spill port, the end face of this cylinder head is water conservancy diversion inclined-plane, and described water conservancy diversion inclined-plane tilts gradually along described upper oil hole to described spill port direction.
2. the cylinder head of internal-combustion engine according to claim 1, it is characterized in that, the periphery of described valve spring mounting hole is provided with at least one drain pan, the bottom surface of described drain pan arranges lower than the bottom of described valve spring mounting hole, and described drain pan is communicated with described valve spring mounting hole with described water conservancy diversion inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420162116.0U CN203742818U (en) | 2014-04-02 | 2014-04-02 | Cylinder cover of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420162116.0U CN203742818U (en) | 2014-04-02 | 2014-04-02 | Cylinder cover of internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742818U true CN203742818U (en) | 2014-07-30 |
Family
ID=51342628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420162116.0U Expired - Fee Related CN203742818U (en) | 2014-04-02 | 2014-04-02 | Cylinder cover of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203742818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329180A (en) * | 2014-11-03 | 2015-02-04 | 常州常发动力机械有限公司 | Air cylinder cover |
-
2014
- 2014-04-02 CN CN201420162116.0U patent/CN203742818U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329180A (en) * | 2014-11-03 | 2015-02-04 | 常州常发动力机械有限公司 | Air cylinder cover |
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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: 20140730 |