CN107842436A - Cylinder head - Google Patents
Cylinder head Download PDFInfo
- Publication number
- CN107842436A CN107842436A CN201711023120.3A CN201711023120A CN107842436A CN 107842436 A CN107842436 A CN 107842436A CN 201711023120 A CN201711023120 A CN 201711023120A CN 107842436 A CN107842436 A CN 107842436A
- Authority
- CN
- China
- Prior art keywords
- mounting hole
- valve mounting
- cylinder
- cap body
- cylinder head
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of cylinder head, including cylinder cap body, cylinder cap body is provided with inlet valve mounting hole and exhaust valve mounting hole, and inlet valve mounting hole and exhaust valve mounting hole are outward-dipping relative to cylinder centerline hole, the position indent of the bottom side alignment combustion chamber of cylinder cap body.The cylinder head strengthens the cooling performance of complete machine, increases piston intensity.
Description
Technical field
The present invention relates to engine art, more particularly to a kind of cylinder head.
Background technology
At present, as shown in figure 1, common engine valve 30 is arranged vertically, under this structure, combustion chamber 60 is by living
Plug top 50, cylinder sleeve 40, cylinder cover bottom surface 101 form.And the cylinder cap 10 of this structural vertical arrangement valve, there is following technology
Problem：
1st, combustion chamber 60 is predominantly located in cylinder block 20, and a heat part is passed by cylinder cover bottom surface 101 caused by burning
It is delivered in cylinder cap water flow field, is taken away heat by the water in cylinder cover water jacket.A part is delivered to the water of cylinder block 20 by cylinder sleeve 40
In flow field, heat is taken away by the water in block jacket.The ability that cylinder cap water flow field takes away heat is better than cylinder block, generally
The ability of block jacket cooling is poorer than cylinder cover water jacket.
2nd, top land 50 is designed to certain shape, meets different fuel burning and the requirement of compression ratio, and compression height is determined
The reliability of piston is determined.It is living under the limitation of the factors such as piston stroke, length of connecting rod, body height, compression height, compression ratio
Fill in resigning link trajectory pit with piston combustion bowl bottom it is possible that the situation of wall thin 501 (referring to Fig. 2).
The information for being disclosed in the background section is merely intended to understanding of the increase to the general background of the present invention, without
It should be considered as recognizing or imply that the information structure has been the existing skill well known to persons skilled in the art in any form
Art.
The content of the invention
It is an object of the invention to provide a kind of cylinder head, strengthens the cooling performance of complete machine, increases piston intensity.
To achieve the above object, the invention provides a kind of cylinder head, including cylinder cap body, cylinder cap body be provided with into
Valve mounting hole and exhaust valve mounting hole, inlet valve mounting hole and exhaust valve mounting hole lean outward relative to cylinder centerline hole
Tiltedly, the position indent of the bottom side alignment combustion chamber of cylinder cap body.
Preferably, inlet valve mounting hole and exhaust valve mounting hole are outward-dipping 8-10 ° relative to cylinder centerline hole.
Preferably, the cylinder cap body interior between inlet valve mounting hole and exhaust valve mounting hole has up big and down small cold
But water jacket.
Preferably, bore edges indent of the bottom surface of cylinder cap body along inlet valve mounting hole and exhaust valve mounting hole.
Compared with prior art, the present invention has the advantages that：By the way that inlet and outlet door is inclined along middle vertical line
Tiltedly installation, add the volume of cylinder cap bottom combustion chamber so that calory burning is largely focused on cylinder cap, by Cooling of Cylinder Head
The flowing of water quickly takes away heat, and the heat of cylinder body portion is reduced, the cooling performance enhancing of complete machine.Simultaneously can be significantly
The volume that combustion chamber is put on piston is reduced, piston intensity can be increased.
Brief description of the drawings
Fig. 1 is the mounting structure schematic diagram of existing cylinder head；
Fig. 2 is the structural representation of the piston in existing cylinder head；
Fig. 3 is the structural representation according to the cylinder head of the present invention.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield scope is not limited by embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " comprising " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other
Element or other parts.
As shown in Fig. 3 figures, according to a kind of cylinder head of the specific embodiment of the invention, including cylinder cap body 1, cylinder cap sheet
Body 1 is provided with inlet valve mounting hole and exhaust valve mounting hole (mark is), inlet valve mounting hole and exhaust valve mounting hole phase
Outward-dipping for cylinder centerline hole 14, the bottom surface for being directed at the cylinder cap body 1 of combustion chamber is recessed combustion chamber 13.
In such scheme, inlet and outlet door can respectively along middle vertical line tilt install, inlet and outlet door because tilt,
Combustion chamber 13 can be increased in the bottom of cylinder cap body, and then the combustion chamber volume on piston is greatly reduced.This structure
Change so that calory burning is largely focused on cylinder cap, by the flowing of cylinder head cooling water, is quickly taken away heat, cylinder block
Partial heat is reduced, the cooling performance enhancing of complete machine.After piston combustion bowl volume reduces, cause wall thickness to increase, greatly reinforce
The intensity of piston, reliability enhancing.And after tilting installation, the space of cooling water cooling ridge area is added, can be arranged
Cylinder head cooling water is top-down to be cooled down to ridge area, strengthens the cooling of cylinder cap ridge area, reduces ridge area cracking, valve
The failures such as seat ring abrasion.
As a kind of preferred embodiment, inlet valve mounting hole and exhaust valve mounting hole are outside relative to cylinder centerline hole
Tilt 8-10 °.Preferably 8 °, the volume of corresponding combustion chamber 13 can reach 30ml, and the volume of piston upper combustion chamber can be with
Greatly reduce.
As a kind of preferred embodiment, the inside of cylinder cap body 1 between inlet valve mounting hole and exhaust valve mounting hole has
Up big and down small cooling jacket 12, water cooling water can strengthen the cooling of ridge area with top-down cooling ridge area.
As a kind of preferred embodiment, the hole side of the bottom surface of cylinder cap body along inlet valve mounting hole and exhaust valve mounting hole
Edge indent and form combustion chamber.
To sum up, the cylinder head of the present embodiment, installed by the way that inlet and outlet door is tilted along middle vertical line, add cylinder cap
The volume of bottom combustion chamber so that calory burning is largely focused on cylinder cap, by the flowing of cylinder head cooling water quickly by heat
Take away, the heat of cylinder body portion is reduced, the cooling performance enhancing of complete machine.The combustion chamber of piston can be greatly reduced simultaneously
Volume, piston intensity can be increased.
The description of the foregoing specific illustrative embodiment to the present invention is to illustrate and the purpose of illustration.These are retouched
State and be not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can carry out a lot
Change and change.The purpose of selecting and describing the exemplary embodiment is that explain the certain principles and in fact of the present invention
Border is applied, so that those skilled in the art can realize and utilize a variety of exemplary embodiment party of the present invention
Case and various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (4)
1. a kind of cylinder head, including cylinder cap body, the cylinder cap body is provided with inlet valve mounting hole and exhaust valve mounting hole, its
It is characterised by, the inlet valve mounting hole and the exhaust valve mounting hole are outward-dipping relative to cylinder centerline hole, the cylinder
The position indent of the bottom side alignment combustion chamber of lid body.
2. cylinder head according to claim 1, it is characterised in that the inlet valve mounting hole and the exhaust valve mounting hole
Outward-dipping 8-10 ° relative to cylinder centerline hole.
3. cylinder head according to claim 1, it is characterised in that the inlet valve mounting hole and the exhaust valve mounting hole
Between cylinder cap body interior there is up big and down small cooling jacket.
4. cylinder head according to claim 3, it is characterised in that installed along the inlet valve bottom surface of the cylinder cap body
Hole and the bore edges indent of the exhaust valve mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711023120.3A CN107842436A (en) | 2017-10-27 | 2017-10-27 | Cylinder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711023120.3A CN107842436A (en) | 2017-10-27 | 2017-10-27 | Cylinder head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107842436A true CN107842436A (en) | 2018-03-27 |
Family
ID=61663117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711023120.3A Pending CN107842436A (en) | 2017-10-27 | 2017-10-27 | Cylinder head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107842436A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108817440A (en) * | 2018-06-29 | 2018-11-16 | 广西玉柴机器股份有限公司 | A kind of Combined cylinder lid cylinder holes processing technology |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256138A (en) * | 2013-04-28 | 2013-08-21 | 重庆小康工业集团股份有限公司 | Cylinder cover assembly of gasoline engine |
| CN203285503U (en) * | 2013-06-08 | 2013-11-13 | 北京汽车动力总成有限公司 | Air valve distributing mechanism, air cylinder head and engine |
| CN203756312U (en) * | 2014-03-03 | 2014-08-06 | 浙江耀锋动力科技有限公司 | Combustion chamber of gasoline engine |
| CN207406419U (en) * | 2017-10-27 | 2018-05-25 | 广西玉柴机器股份有限公司 | Cylinder head |
-
2017
- 2017-10-27 CN CN201711023120.3A patent/CN107842436A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256138A (en) * | 2013-04-28 | 2013-08-21 | 重庆小康工业集团股份有限公司 | Cylinder cover assembly of gasoline engine |
| CN203285503U (en) * | 2013-06-08 | 2013-11-13 | 北京汽车动力总成有限公司 | Air valve distributing mechanism, air cylinder head and engine |
| CN203756312U (en) * | 2014-03-03 | 2014-08-06 | 浙江耀锋动力科技有限公司 | Combustion chamber of gasoline engine |
| CN207406419U (en) * | 2017-10-27 | 2018-05-25 | 广西玉柴机器股份有限公司 | Cylinder head |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108817440A (en) * | 2018-06-29 | 2018-11-16 | 广西玉柴机器股份有限公司 | A kind of Combined cylinder lid cylinder holes processing technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180327 |