CN109026424A - overhead camshaft cylinder head - Google Patents

overhead camshaft cylinder head Download PDF

Info

Publication number
CN109026424A
CN109026424A CN201811173881.1A CN201811173881A CN109026424A CN 109026424 A CN109026424 A CN 109026424A CN 201811173881 A CN201811173881 A CN 201811173881A CN 109026424 A CN109026424 A CN 109026424A
Authority
CN
China
Prior art keywords
cylinder head
cylinder
overhead camshaft
camshaft cylinder
overhead
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
Application number
CN201811173881.1A
Other languages
Chinese (zh)
Inventor
刘治春
覃文
余锦海
覃壮革
廖升友
农永新
李洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangxi Yuchai Machinery Co Ltd
Original Assignee
Guangxi Yuchai Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangxi Yuchai Machinery Co Ltd filed Critical Guangxi Yuchai Machinery Co Ltd
Priority to CN201811173881.1A priority Critical patent/CN109026424A/en
Publication of CN109026424A publication Critical patent/CN109026424A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00Cylinders; Cylinder heads 
    • F02F1/24Cylinder heads
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00Cylinders; Cylinder heads 
    • F02F1/24Cylinder heads
    • F02F1/26Cylinder heads having cooling means
    • F02F1/36Cylinder heads having cooling means for liquid cooling
    • F02F1/38Cylinder heads having cooling means for liquid cooling the cylinder heads being of overhead valve type

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  • 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 overhead camshaft cylinder head, a part of cam shaft installing seat hole and cylinder holes is integrated in the overhead camshaft cylinder head, the intensity of the overhead camshaft cylinder head is significantly increased, and can bear higher explosion pressure, and structure simply reduces cost.

Description

Overhead camshaft cylinder head
Technical field
The present invention relates to field of internal combustion engine, especially with regard to a kind of overhead camshaft cylinder head.
Background technique
Cylinder head is a key components and parts of conventional internal combustion, and cylinder block, cylinder jacket form internal combustion together The basic framework of machine.Specifically, cylinder head is installed on cylinder block by cylinder head bolt, and cylinder jacket is installed on cylinder block In cylinder-bore (cylinder-bore for the internal combustion engine having is for being mounted directly piston), cylinder head and piston, cylinder jacket form internal combustion engine Combustion chamber, piston is reciprocating in cylinder jacket.
Conventional internal combustion cylinder head is installed on cylinder block by cylinder head bolt, between cylinder head and cylinder block It is sealed by head gasket, cylinder head bolt tightens rear bolt pulling force and cylinder head and cylinder block compress head gasket, cylinder jacket (cylinder-bore for the internal combustion engine having is for being mounted directly piston), cylinder head, head gasket, gas are installed in the cylinder-bore of cylinder block The burning confined space of cylinder sleeve (or cylinder block) and piston composition internal combustion engine, the pressure that fuel oil is generated in gas in-cylinder combustion are usual It is higher, need cylinder to be stamped enough intensity.The pressure generated when near top dead center fuel oil is in gas in-cylinder combustion is maximum, cylinder Lid bottom surface is heated, stress modification is serious, is easy to cause cylinder cap to split, rushes the failures such as cylinder pad.
General cylinder head is in cuboid, and rigid better, the stress modification of the cylinder head that general height is higher, width is smaller is more It is small, it is able to bear the higher detonation pressure that burning generates;Conventional internal combustion cylinder head is since by height limitation, size is more flat Flat, structural strength is low, detonation pressure in unbearable higher cylinder, while structure bulky, using cast iron materials;In addition, conventional internal combustion Engine cylinder cap is sealed using bolt, cylinder head gasket structure, detonation pressure in unbearable higher cylinder, and detonation pressure height is easy to appear in cylinder Cylinder cap splits, rushes the failures such as cylinder pad;And conventional internal combustion cylinder head wheel shaft is mounted in cylinder head by camshaft cover, knot Structure is complicated, number of parts is more, and processing is complicated and installation positioning requirements are higher.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide a kind of overhead camshaft cylinder head, and the intensity of the overhead camshaft cylinder head is substantially Increase, higher explosion pressure can be born, and structure simply reduces cost.
To achieve the above object, the present invention provides a kind of overhead camshaft cylinder head, the overhead camshaft cylinder head On be integrated with a part of cam shaft installing seat hole and cylinder holes, which is integrated in the overhead camshaft gas On cylinder cap, does not need camshaft cover, shaft-cup positioning sleeve and bolt and be mounted in cylinder head, structure simply reduces cost.
In a preferred embodiment, cylinder holes water jacket is also integrated in the overhead camshaft cylinder head.
In a preferred embodiment, the cam shaft installing seat hole uses tunnel structure to be integrated in the overhead convex In wheel shaft cylinder head, without camshaft cover processing being dismounted for multiple times positioning, machining accuracy is high.
In a preferred embodiment, the height of the overhead camshaft cylinder head is at least 2 times of width, so that Cylinder head intensity is significantly increased, and can bear higher explosion pressure.
In a preferred embodiment, the overhead camshaft cylinder head uses casting aluminium material, can satisfy engine Engine weight is greatly lowered in strength demand.
Compared with prior art, overhead camshaft cylinder head of the present invention has the following beneficial effects:
The present invention provides a kind of overhead camshaft cylinder head, and cam shaft installing seat hole is integrated on cylinder cap, to subtract Few number of parts, reduces engine cost, in addition, cylinder holes water jacket and part cylinder holes are integrated on cylinder cap, so that cylinder head Intensity is high, and the demand of high detonation pressure is just able to satisfy using cast aluminum construction, engine cylinder cap weight is greatly reduced, for engine High-intensitive, integrated, light-weight design has good help.
Detailed description of the invention
Fig. 1 is overhead camshaft air cylinder head structure schematic diagram according to an embodiment of the present invention.
Main appended drawing reference explanation:
1- cam shaft installing seat hole, 2- cylinder holes, 3- cylinder holes water jacket.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention Shield range is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members Part or other component parts.
As shown in Figure 1, overhead camshaft cylinder head according to the preferred embodiment of the present invention, the overhead camshaft cylinder The a part for being integrated with cam shaft installing seat hole 1 and cylinder holes 2 is covered, it is convex which is integrated in the overhead In wheel shaft cylinder head, do not need camshaft cover, shaft-cup positioning sleeve and bolt and be mounted in cylinder head, structure simply reduce at This.
As a kind of preferred embodiment, cylinder holes water jacket 3 is also integrated in the overhead camshaft cylinder head.
As a kind of preferred embodiment, it is convex that the cam shaft installing seat hole 1 uses tunnel structure to be integrated in the overhead In wheel shaft cylinder head, without camshaft cover processing being dismounted for multiple times positioning, machining accuracy is high.
As a kind of preferred embodiment, the height of the overhead camshaft cylinder head is at least 2 times of width, so that cylinder Lid intensity is significantly increased, and can bear higher explosion pressure.
As a kind of preferred embodiment, the overhead camshaft cylinder head uses casting aluminium material, and it is strong to can satisfy engine Degree demand, is greatly lowered engine weight.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.

Claims (5)

1. a kind of overhead camshaft cylinder head, which is characterized in that be integrated with camshaft installation in the overhead camshaft cylinder head A part of bore and cylinder holes.
2. overhead camshaft cylinder head as described in claim 1, which is characterized in that also collect in the overhead camshaft cylinder head At there is cylinder holes water jacket.
3. overhead camshaft cylinder head as described in claim 1, which is characterized in that the cam shaft installing seat hole uses tunnel Formula structure is integrated in the overhead camshaft cylinder head.
4. overhead camshaft cylinder head as described in claim 1, which is characterized in that the height of the overhead camshaft cylinder head At least 2 times of width.
5. overhead camshaft cylinder head as described in claim 1, which is characterized in that the overhead camshaft cylinder head is using casting Aluminum material.
CN201811173881.1A 2018-10-09 2018-10-09 overhead camshaft cylinder head Pending CN109026424A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811173881.1A CN109026424A (en) 2018-10-09 2018-10-09 overhead camshaft cylinder head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811173881.1A CN109026424A (en) 2018-10-09 2018-10-09 overhead camshaft cylinder head

Publications (1)

Publication Number Publication Date
CN109026424A true CN109026424A (en) 2018-12-18

Family

ID=64616006

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811173881.1A Pending CN109026424A (en) 2018-10-09 2018-10-09 overhead camshaft cylinder head

Country Status (1)

Country Link
CN (1) CN109026424A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002054498A (en) * 2000-08-11 2002-02-20 Honda Motor Co Ltd Dohc type engine
CN101737190A (en) * 2009-12-11 2010-06-16 苏州麦格特发动机有限公司 Air valve structure of overall cylinder cover of medium-power diesel engine
CN103925102A (en) * 2014-05-07 2014-07-16 广西玉柴机器股份有限公司 Composite cylinder cover
CN203906107U (en) * 2014-05-07 2014-10-29 广西玉柴机器股份有限公司 Combined type air cylinder cover and internal combustion engine body
CN206000637U (en) * 2016-08-31 2017-03-08 浙江强广剑精密铸造股份有限公司 A kind of cylinder cover of motorcycle engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002054498A (en) * 2000-08-11 2002-02-20 Honda Motor Co Ltd Dohc type engine
CN101737190A (en) * 2009-12-11 2010-06-16 苏州麦格特发动机有限公司 Air valve structure of overall cylinder cover of medium-power diesel engine
CN103925102A (en) * 2014-05-07 2014-07-16 广西玉柴机器股份有限公司 Composite cylinder cover
CN203906107U (en) * 2014-05-07 2014-10-29 广西玉柴机器股份有限公司 Combined type air cylinder cover and internal combustion engine body
CN206000637U (en) * 2016-08-31 2017-03-08 浙江强广剑精密铸造股份有限公司 A kind of cylinder cover of motorcycle engine

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Legal Events

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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

Application publication date: 20181218

RJ01 Rejection of invention patent application after publication