CN2484408Y - Air-valve assembly of diesel engine - Google Patents
Air-valve assembly of diesel engine Download PDFInfo
- Publication number
- CN2484408Y CN2484408Y CN 01248242 CN01248242U CN2484408Y CN 2484408 Y CN2484408 Y CN 2484408Y CN 01248242 CN01248242 CN 01248242 CN 01248242 U CN01248242 U CN 01248242U CN 2484408 Y CN2484408 Y CN 2484408Y
- Authority
- CN
- China
- Prior art keywords
- valve
- seat ring
- valve guide
- retainer
- diesel 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
Links
Images
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses an air-valve assembly of diesel engine, which comprises a cylinder cover, an air valve, a valve guide and a retainer; a bearing hole and a guide hole are arranged on the cylinder cover; the retainer is fixedly arranged in the bearing hole and a sealing girdle is arranged in the internal layer of the retainer; the valve guide is fixedly arranged in the guide hole and a spacing shoulder is arranged at the upper end of the valve guide; the end of the air valve is cooperated with the sealing girdle of the retainer; a valve rod is freely inserted into the valve guide. The valve guide with the spacing shoulder of the utility model is arranged well once, thus saving the repairing time and avoiding the assembly error caused by the artificial installation; the retainer is provided with the sealing girdle and the sealing performance between the sealing girdle of the retainer and the end of the air valve is good.
Description
The utility model relates to a kind of improvement of diesel engine spiracle assembly.
The diesel engine spiracle assembly is made up of cylinder head, valve, valve guide bushing, seat ring, and the effect of valve guide bushing is that guiding diesel engine inlet and exhaust valve is done straight line motion in conduit, guarantees valve head and air valve seat ring high-seal, guarantees the working pressure in the cylinder.
The valve guide bushing of existing various model diesel engines, when assembling with cylinder head, the upper end of valve guide bushing and the assembling of cylinder head highly all have strict technical requirements, the maintenance man assembles valve guide bushing with hammering method at present, when using hand hammer on the size dynamics error can appear, occur needing to proofread and correct repeatedly after the error, lose time; And destroyed the interference quality that conduit diameter and cylinder head conduit hold the hole, destroyed the standard measure of conduit assembling position outer diameter end internal orifice dimension.
Valve guide bushing is in assembling, the end distance cylinder head is too high on the conduit valve guide bushing position, aperture, upper end and the collision of valve rocker head will occur, cause the rocking arm fracture, the valve tappet bending, valve guide bushing aperture bending is pulled valve stem, and destroys the straight line motion of valve stem in guide hole.Grind inclined to one side seat ring, cause valve and seat ring poorly sealed, cause the fracture of valve guide bushing and cylinder head installation position upper end, have a strong impact on the working life and the working pressure that reduces cylinder of the sealability of valve and seat ring, diesel engine is wasted a large amount of fuel at work.
Valve guide bushing and cylinder head assembling height are spent low harm and are: the intake resistance when the increase cylinder is air-breathing, change the direction of gas velocity, influence the quality of mixed gas, make the incomplete combustion of fuel, reduce the power of diesel engine, exhaust valve guide and cylinder head were assembled low, with increasing the resistance that waste gas is discharged, make exhaust valve overheated, the easy close-burning carbon distribution of valve head rod portion, increase the rate of depreciation of aperture, conduit bottom and valve stem, the sealability of heavy damage valve and seat ring is directly destroyed the working pressure in the cylinder, and multi-cylinder diesel engine is even more serious, because cylinder pressure descends and the power decline at work of the uneven diesel engine of pressure, will waste a large amount of energy.
The purpose of this utility model is to provide a kind of diesel engine spiracle assembly, can guarantee the assembly precision of valve guide bushing upper end and cylinder head, makes the sealing of valve and seat ring tight, and improves machine working life, reduces the maintenance of diesel engine, the reduction maintenance cost.
For achieving the above object, the utility model diesel engine spiracle assembly is made up of cylinder head, valve, valve guide bushing, seat ring, is provided with on cylinder head and holds hole and guide hole, holds the hole internal fixation seat ring is installed, and the seat ring internal layer is provided with seal band; The guide hole internal fixation is installed valve guide bushing, and the valve guide bushing upper end is provided with spacing shoulder; The valve termination cooperates with the seat ring seal band, and valve stem freely inserts in the valve guide bushing.
Advantage of the present utility model is: 1, the valve guide bushing upper end is provided with spacing shoulder with the height position of cylinder head distance, when changing valve guide bushing, common maintenance man and diesel engine user of service can both finish this assembly process, and can guarantee the standard measure that conduit is installed, guarantee the sealability and the working life of valve and air valve seat ring, guarantee the working pressure in the cylinder.2, seat ring internal layer lead angle promptly is provided with seal band, closely cooperates with the lead angle of valve termination, and sealing is tight, and can save the secondary precision processing of air valve seat ring, is convenient to maintenance, reduces maintenance cost.
The utility model is described in further detail below in conjunction with accompanying drawing;
Fig. 1 is the sectional view of the utility model diesel engine spiracle assembly plan view;
Fig. 2, Fig. 3 are respectively the sectional view and the worm's eye views of the plan view of the utility model valve guide bushing;
Fig. 4, Fig. 5 are respectively the sectional view and the worm's eye views of the plan view of the utility model seat ring.
The diesel engine spiracle assembly is made up of cylinder head 3, valve 2, valve guide bushing 1 and seat ring 4 as shown in the figure, is provided with on cylinder head and holds hole 5 and guide hole 7, holds the hole internal fixation seat ring 4 is installed, and the seat ring internal layer is provided with seal band 6; Guide hole 7 internal fixation are installed valve guide bushing 1, and the valve guide bushing upper end is provided with spacing shoulder; The valve termination cooperates with the seat ring seal band, and valve stem freely inserts in the valve guide bushing.
Claims (1)
1, a kind of diesel engine spiracle assembly, form by cylinder head (3), valve (2), valve guide bushing (1) and seat ring (4), it is characterized in that: be provided with on cylinder head and hold hole (5) and guide hole (7), hold the hole internal fixation seat ring (4) is installed, the seat ring internal layer is provided with seal band (6); Guide hole (7) internal fixation is installed valve guide bushing (1), and the valve guide bushing upper end is provided with spacing shoulder; The valve termination cooperates with seat ring seal band (6), and valve stem freely inserts in the valve guide bushing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01248242 CN2484408Y (en) | 2001-06-14 | 2001-06-14 | Air-valve assembly of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01248242 CN2484408Y (en) | 2001-06-14 | 2001-06-14 | Air-valve assembly of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2484408Y true CN2484408Y (en) | 2002-04-03 |
Family
ID=33658930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01248242 Expired - Fee Related CN2484408Y (en) | 2001-06-14 | 2001-06-14 | Air-valve assembly of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2484408Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412571A (en) * | 2018-03-05 | 2018-08-17 | 中国北方发动机研究所(天津) | A kind of new-type valve guide bushing structure |
| CN108868940A (en) * | 2018-08-17 | 2018-11-23 | 全椒县全动机械有限公司 | A kind of valve guide of internal combustion engine |
-
2001
- 2001-06-14 CN CN 01248242 patent/CN2484408Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412571A (en) * | 2018-03-05 | 2018-08-17 | 中国北方发动机研究所(天津) | A kind of new-type valve guide bushing structure |
| CN108868940A (en) * | 2018-08-17 | 2018-11-23 | 全椒县全动机械有限公司 | A kind of valve guide of internal combustion engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201041118Y (en) | Diesel engine fuel injection machinery unit pump | |
| CN2484408Y (en) | Air-valve assembly of diesel engine | |
| CN105888816A (en) | Method for increasing air-fuel ratio of engine and supercharged engine | |
| CN201025149Y (en) | A gas cylinder cover of gasoline engine | |
| CN204877572U (en) | Put overhead valve valve timing mechanism of camshaft down | |
| CN115234397A (en) | Novel air inlet tumble structure of engine | |
| CN205243664U (en) | Take easily restoration type of sealing washer engine cylinder lid | |
| CN2934607Y (en) | Four-air valve four-cylinder diesel engine air passage | |
| CN2523956Y (en) | Hydraulic tappet oil supplying channel of motorcycle engine head | |
| CN202280491U (en) | Motorcycle four-stroke engine top-mounted air distribution mechanism and camshaft assembly thereof | |
| CN2254485Y (en) | Distribution system for single air valve internal-combustion engine | |
| CN205225479U (en) | Can increase easy restoration type engine cylinder lid of swirl ratio | |
| CN212003291U (en) | Hydraulic tappet for internal combustion engine | |
| CN110966085A (en) | Hand-held type pressure boost micro engine | |
| CN2473349Y (en) | Rectangular section plunger spring oil jet pump | |
| CN205225480U (en) | Wear -resisting type engine cylinder lid | |
| CN2828344Y (en) | Cylinder head of four-valve diesel engine | |
| CN2789431Y (en) | Motorcycle engine | |
| CN212837993U (en) | Intake valve spring seat | |
| CN2440948Y (en) | IC engine | |
| CN220903161U (en) | Valve spring dismounting tool for diesel engine of railway diesel locomotive | |
| CN219622757U (en) | Rotary diesel engine valve rod | |
| CN214887272U (en) | Rocker arm with bias spring piece | |
| CN211524947U (en) | Hand-held type pressure boost micro engine | |
| CN210217895U (en) | Semispherical combustion chamber with combustion step for gasoline engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |