CN103758654B - Diesel engine fence type cylinder cover for high-speed ship - Google Patents
Diesel engine fence type cylinder cover for high-speed ship Download PDFInfo
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- CN103758654B CN103758654B CN201310750078.0A CN201310750078A CN103758654B CN 103758654 B CN103758654 B CN 103758654B CN 201310750078 A CN201310750078 A CN 201310750078A CN 103758654 B CN103758654 B CN 103758654B
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- cylinder head
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Abstract
The invention discloses a diesel engine fence type cylinder cover for a high-speed ship. The cylinder cover comprises a cylinder cover body and a cylinder cover fence, wherein the ratio of the thickness of the cylinder cover body to the diesel engine cylinder diameter is 1:1; the cylinder cover fence is arranged at the top of the cylinder cover body, the ratio of the thickness of the cylinder cover fence to the total thickness of the diesel engine fence type cylinder cover for the high-speed ship is 0.32-0.40, and the cylinder cover body and the cylinder cover fence are of an integrated casting forming structure. By arranging a cylinder cover fence type structure in the thickness direction of the cylinder cover and integrating a rocker arm shaft support at the position of the cylinder cover fence type structure, on one hand, the ratio of the total thickness of the cylinder cover to the cylinder diameter is large, and the cylinder cover has enough integral strength, has higher sealing reliability and can be suitable for higher detonation pressure in a cylinder; on the other hand, the integrated structural design of integrating a rocker arm shaft mounting hole and the cylinder cover is adopted, and the cylinder cover is simple and compact in structure, high in positioning accuracy, convenient to install and dismantle and convenient to maintain.
Description
Technical field
The present invention relates to engine art, particularly a kind of High-speed transfer fence type cylinder cover.
Background technology
As everyone knows, the cylinder head of diesel engine is the important component part of diesel engine, after cylinder head and cylinder block adopt bolts assemblies, define the confined space of reciprocating motion of the pistons, the pressure that fuel oil produces when cylinder combustion is burnt is usually higher, cylinder is needed to be stamped enough intensity, its sealing reliability of cylinder head that thickness is larger is better, the thickness requirement of usual cylinder head is not less than the bore size of diesel engine, and the intake and exhaust rocking arm simultaneously in engine valve actuating mechanism and rocker shaft bed need to be arranged in cylinder head usually.
At present, the cylinder head gauge that domestic diesel engine adopts is generally 1 to 1 with diesel engine cylinder diameter dimension ratio, and structural strength is low, cannot bear detonation pressure in higher cylinder, and the cold start-up ability of engine, fuel economy and Power output are restricted.In addition, the intake and exhaust rocking arm in valve actuating mechanism and rocker shaft bed need to be arranged separately in top surface of cylinder cover, and amount of parts is many, and structure is not compact, and to processing and installing, positioning requirements is higher.
Summary of the invention
The present invention is to overcome defect in above-mentioned prior art, and provide a kind of simple and reasonable, gauge and bore size ratio are comparatively large, and structural strength is high, and intake and exhaust rocker shaft bed is integrated in the High-speed transfer fence type cylinder cover in cylinder head.
For achieving the above object, according to the invention provides a kind of High-speed transfer fence type cylinder cover, comprising:
Cylinder head body, its gauge is 1 to 1 with diesel engine cylinder diameter dimension ratio;
Cylinder head fence, is laid in described cylinder head bodies top, and the ratio of the general thickness of its gauge and High-speed transfer fence type cylinder cover is between 0.32-0.40, and cylinder head body and cylinder head fence are integrated casting structure.
In technique scheme, the gauge of cylinder head fence and diesel engine cylinder diameter dimension ratio are between 0.4-0.6.
In technique scheme, the width dimensions of the main gusset of cylinder head fence and diesel engine cylinder diameter ratio are between 0.065-0.085.
In technique scheme, cylinder head fence offers rocker arm shaft installing hole.
Compared with prior art, the present invention has following beneficial effect: this High-speed transfer fence type cylinder cover is simple and reasonable, by setting up the cylinder head fence type structure of thickness direction in cylinder head, and at this integrated rocker arm shaft support in cylinder head fence type structure place, make on the one hand cylinder head general thickness size and bore size ratio larger, guarantee that cylinder is stamped enough bulk strengths, sealing is more reliable, can be applicable to detonation pressure in higher cylinder; On the other hand, adopt rocker arm shaft installing hole and the integrated monolithic construction of cylinder head to design, such that air cylinder head structure is simply compact, positioning precision is high, mounting or dismounting are convenient, compact conformation, be convenient to maintaining.
Accompanying drawing explanation
Fig. 1 is the structural representation of High-speed transfer fence type cylinder cover of the present invention;
Fig. 2 is the sectional structure schematic diagram in the A-A direction of Fig. 1;
Fig. 3 is the sectional structure schematic diagram in the B-B direction of Fig. 1;
Description of reference numerals:
1-cylinder head body, 2-cylinder head fence, 3-rocker arm shaft installing hole, 4-main gusset.
Detailed description of the invention
Below in conjunction with accompanying drawing, a specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of detailed description of the invention.It will be appreciated that, mentioned in following embodiment of the present invention " on ", D score, "left", "right", " front " and " reverse side " all with the direction shown in each figure for benchmark, these words being used for limiting direction are only used to be convenient to illustrate, do not represent the restriction to the concrete technical scheme of the present invention.
High-speed transfer fence type cylinder cover of the present invention is simple and reasonable, by setting up the cylinder head fence type structure of thickness direction in cylinder head, and at this integrated rocker arm shaft support in cylinder head fence type structure place, make on the one hand cylinder head general thickness size and bore size ratio larger, guarantee that cylinder is stamped enough bulk strengths, sealing is more reliable, can be applicable to detonation pressure in higher cylinder; On the other hand, adopt rocker arm shaft installing hole and the integrated monolithic construction of cylinder head to design, such that air cylinder head structure is simply compact, positioning precision is high, mounting or dismounting are convenient, compact conformation, be convenient to maintaining.
Be described through citing but unrestriced mode describes the disclosure in detail below, should be understood that various aspect of the present disclosure can by independent realization or the realization be combined with other aspects.This description clearly enables those skilled in the art to manufacture and uses us to believe for new and non-obvious improvement, describe the application of some embodiments, alternative, modification, alternative and system, comprise the current best mode being considered to perform the inventive principle described in this description.When describing element or feature and/or embodiment, be intended to represent that to have in element or feature one or more titled with " one " " one " " being somebody's turn to do " and " described ".Term " comprises " " comprising " and " having " is intended to be comprising property, and represents also have extra element or feature beyond those specifically described elements or feature.
As shown in Figure 1 to Figure 3, the concrete structure of this High-speed transfer fence type cylinder cover comprises: cylinder head body 1 and the cylinder head fence 2 being laid in cylinder head body 1 top, and is opened in the rocker arm shaft installing hole 3 on this cylinder head fence 2.Wherein, cylinder head body 1 and cylinder head fence 2 are integrated casting structure, cylinder head general thickness size and bore size ratio are increased, guarantees that cylinder is stamped enough bulk strengths, seal more reliable.Rocker arm shaft installing hole 3 is for installing rocker arm shaft, and inlet valve rocker and exhaust valve rocker are arranged on rocker arm shaft, and guarantee that the installation of rocker arm shaft is convenient, compact conformation, accurate positioning, the work of inlet valve rocker assembly and exhaust valve rocker assembly is more reliable; Greatly reduce the parts of relevant auxiliary positioning, installation and sealing, thus reduce costs; The accessibility of care and maintenance is good, is easy to mounting or dismounting, is conducive to applying.
Cylinder head fence 2(see in Fig. 2 be positioned at top chain-dotted line square frame) gauge be X, the general thickness of this High-speed transfer fence type cylinder cover is Y, the ratio of the gauge X of cylinder head fence 2 and the general thickness Y of this High-speed transfer fence type cylinder cover is between 0.32-0.40, and the gauge X of cylinder head fence 2 and diesel engine cylinder diameter dimension ratio are between 0.4-0.6, in such cases, cylinder head body 1(see in Fig. 2 be positioned at below chain-dotted line square frame) gauge (Y-X), it is 1 to 1 with diesel engine cylinder diameter dimension ratio, and the width dimensions of the main gusset 4 of cylinder head fence 2 is Z, itself and cylinder diameter ratio are between 0.065-0.085, to guarantee that cylinder is stamped enough bulk strengths, seal more reliable, go for detonation pressure in higher cylinder, make again this High-speed transfer fence type cylinder cover physical dimension less, structure is compacter.
Rocker arm shaft installing hole 3 is opened on cylinder head fence 2, for installing rocker arm shaft, rocker arm shaft also installs exhaust valve rocker and inlet valve rocker.During installation, first inlet valve rocker bearing is laterally loaded in inlet valve dead eye, exhaust valve rocking arm axle takes up in exhaust valve dead eye, at this moment difference mounting O-shaped sealing ring in rocker arm shaft the inner axle of rocker arm shaft and the sealed groove of rocker arm shaft outer end axle, inner for rocker arm shaft axle is pierced into rocker arm shaft installing hole 3, penetrate the exhaust valve rocker bearing on the inlet valve rocker bearing on packing ring, inlet valve rocker, packing ring, exhaust valve rocker and packing ring more successively, finally rocker arm shaft outer end axle is pierced in rocker arm shaft installing hole 3; The O RunddichtringO be positioned on the inner axle of rocker arm shaft and rocker arm shaft outer end axle plays sealing function; Packing ring can prevent the wearing and tearing between contact surface, the effective security ensureing assembling.
To sum up, this High-speed transfer fence type cylinder cover is simple and reasonable, by setting up the cylinder head fence type structure of thickness direction in cylinder head, and at this integrated rocker arm shaft support in cylinder head fence type structure place, make on the one hand cylinder head general thickness size and bore size ratio larger, guarantee that cylinder is stamped enough bulk strengths, sealing is more reliable, can be applicable to detonation pressure in higher cylinder; On the other hand, adopt rocker arm shaft installing hole and the integrated monolithic construction of cylinder head to design, such that air cylinder head structure is simply compact, positioning precision is high, mounting or dismounting are convenient, compact conformation, be convenient to maintaining.
Last it is noted that above embodiment only in order to illustrate patent of the present invention and and technical scheme described by unrestricted patent of the present invention; Therefore, although this description has been described in detail patent of invention with reference to each above-mentioned embodiment, those of ordinary skill in the art should be appreciated that and still can modify to patent of the present invention or equivalent replacement; And all do not depart from technical scheme and the improvement thereof of the spirit and scope of patent of the present invention, it all should be encompassed in the right of patent of the present invention.
Claims (1)
1. a High-speed transfer fence type cylinder cover, is characterized in that, comprising:
Cylinder head body, its gauge is 1 to 1 with diesel engine cylinder diameter dimension ratio;
Cylinder head fence, is laid in described cylinder head bodies top, and the ratio of the general thickness of its gauge and High-speed transfer fence type cylinder cover is between 0.32-0.40, and described cylinder head body and cylinder head fence are integrated casting structure;
Described cylinder head fence offers complete rocker arm shaft installing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310750078.0A CN103758654B (en) | 2013-12-31 | 2013-12-31 | Diesel engine fence type cylinder cover for high-speed ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310750078.0A CN103758654B (en) | 2013-12-31 | 2013-12-31 | Diesel engine fence type cylinder cover for high-speed ship |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103758654A CN103758654A (en) | 2014-04-30 |
| CN103758654B true CN103758654B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310750078.0A Active CN103758654B (en) | 2013-12-31 | 2013-12-31 | Diesel engine fence type cylinder cover for high-speed ship |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397948A (en) * | 2007-09-27 | 2009-04-01 | 三菱自动车工业株式会社 | Cylinder head |
| CN203614252U (en) * | 2013-12-31 | 2014-05-28 | 广西玉柴机器股份有限公司 | Fence type cylinder cover for high-speed marine diesel engine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2546435B2 (en) * | 1990-11-05 | 1996-10-23 | 三菱自動車工業株式会社 | Cylinder head of internal combustion engine |
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2013
- 2013-12-31 CN CN201310750078.0A patent/CN103758654B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397948A (en) * | 2007-09-27 | 2009-04-01 | 三菱自动车工业株式会社 | Cylinder head |
| CN203614252U (en) * | 2013-12-31 | 2014-05-28 | 广西玉柴机器股份有限公司 | Fence type cylinder cover for high-speed marine diesel engine |
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| CN103758654A (en) | 2014-04-30 |
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Effective date of registration: 20230110 Address after: No.88 Tianqiao West Road, Yulin City, Guangxi Zhuang Autonomous Region Patentee after: Guangxi Yuchai Ship Electric Power Co.,Ltd. Address before: 537005 No. 88 flyover West Road, the Guangxi Zhuang Autonomous Region, Yulin Patentee before: Guangxi Yuchai Machinery Co.,Ltd. |