CN202228201U - Improved cylinder cover of petrol engine - Google Patents
Improved cylinder cover of petrol engine Download PDFInfo
- Publication number
- CN202228201U CN202228201U CN2011203941719U CN201120394171U CN202228201U CN 202228201 U CN202228201 U CN 202228201U CN 2011203941719 U CN2011203941719 U CN 2011203941719U CN 201120394171 U CN201120394171 U CN 201120394171U CN 202228201 U CN202228201 U CN 202228201U
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- CN
- China
- Prior art keywords
- cylinder cover
- cylinder cap
- air inlet
- cylinder
- exhaust
- 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)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
An improved cylinder cover of a petrol engine fundamentally resolves the problem that an existing cylinder cover of the petrol engine is small in air valves, poor in transmission accuracy of a valve actuating mechanism and poor in oil gas atomization effect in a cylinder. The improved cylinder cover of the petrol engine comprises a cylinder cover body. The technical scheme of the improved cylinder cover of the petrol engine is that valve retainers on the air inlet side and the air outlet side adopt fillet transition with the cylinder cover body, the cross position between a combustion chamber and the cylinder cover body is spherical smooth transition, the joint between a thread bottom hole provided with a spark plug and the combustion chamber is in smooth connection by adopting a transition conical face, a cam bearing support is provided with double cam shafts, a fuel injector installation hole communicated with an air inlet channel is arranged on the air inlet side of the cylinder cover, petrol can be directly injected to the position of an air inlet valve throat opening by a fuel injector to atomize oil gas, and the air inlet channel is in a lengthened arc shape. Due to the advanced design structure and an installation assembly, manufacturing of the cylinder cover is enabled to be fit for the idea of modern manufacture, manufacturing of products is enabled to meet generality requirements, and manufacture cost is greatly reduced.
Description
Technical field
The utility model relates to the architecture advances to engine cylinder cover, particularly a kind of modified model gasoline engine cylinder cover.
Background technique
At present, gasoline engine cylinder cover is generally continued to use the Japan Toyota engine technology eighties in last century, uses at station wagon, on the picking-up vehicle motor.Be introduced into domesticly in 1999, through repeatedly promoting the auxiliary equipment performance, but still satisfied not the customer demand that changes day by day.The shortcoming of its cylinder cap is following:
One of which, every cylinder two valves, promptly one advances a row; Its two, the valve distribution mechanism transmission accuracy is not accurate enough, very easily causes cylinder cap inlet and outlet door open and close to postpone or in advance, makes that mixed gas can not fully burn the firing chamber in, causes complete machine to discharge exceeding standard, engine power performance is low and the consequence unstable, that oil consumption is high; Its three, its fuel injection is carried out through air intake branch, the oil gas atomizing effect is not good.
To sum up, existing gasoline engine cylinder cover structure is demanded urgently improving.
Summary of the invention
The purpose of the utility model is for a kind of reasonable in design, safe and reliable modified model gasoline engine cylinder cover are provided, and solves fundamentally that the valve that existing gasoline engine cylinder cover exists is few, the distribution device transmission accuracy is poor, the bad problem of oil gas atomizing effect in the cylinder.
The technological scheme of the utility model is: this modified model gasoline engine cylinder cover; Comprise the cylinder cap body; The cylinder cap top is provided with the camshaft bearing; Cylinder cap internal placement exhaust side valve guide bushing and air inlet side valve guide bushing, exhaust side air valve seat ring and air inlet side air valve seat ring, exhaust passage and gas-entered passageway also are provided with thread Pilot hole that spark plug is installed and the positioning pin hole that is used for the cylinder cap end face, and its technological points is:
Said inlet and outlet side air valve seat ring and cylinder cap body adopt round-corner transition;
Firing chamber and cylinder cap body intersection are the sphere rounding off;
The thread Pilot hole of said installation spark plug adopts transition conical surface slyness to be connected with the jointing place, firing chamber;
Said camshaft bearing is exhaust side cams bearing support and the intake-side camshaft bearing that is provided with respectively, forms the twin cam shaft configuration;
Cylinder cap air inlet side is provided with the mounting hole of oil sprayer position that communicates with said gas-entered passageway, has installed behind the oil sprayer gasoline direct injection is carried out the oil gas atomizing to intake valve aditus laryngis place;
The arc line type that said gas-entered passageway is set to extend.
The every cylinder of cylinder cap is provided with four valves, i.e. two intake valves and two exhaust valves.
Advantage of the utility model and positive technique effect are: the structural type of every cylinder four valves of the utility model makes in-cylinder combustion more abundant.The twin cam shaft configuration of its cylinder cap overhead is got up engine operation, and running is more steady, power output is more stable and significantly reduce oil consumption.The arc line type intake duct of lengthening further provides sufficient natural air that fuel oil is better diluted, and gets into through intake valve and realizes fully burning in the firing chamber.The manufacturing that project organization that the application is advanced and mounting assembly make cylinder cap more meets the modern theory of making, and makes the product manufacturing meet the requirement of versatility, thereby greatly reduces manufacturing cost.
Description of drawings
To combine accompanying drawing that the utility model is described further below:
Fig. 1 is the structural representation sketch of the utility model;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is along the sectional drawing of B1-B1 line among Fig. 2;
Fig. 5 is along the sectional drawing of B2-B2 line among Fig. 2;
Fig. 6 is the local enlarged diagram of I place cylinder cap spark plug bottom outlet among Fig. 5;
Fig. 7 is along the sectional drawing of A1-A1 line among Fig. 3;
Fig. 8 is along the sectional drawing of A2-A2 line among Fig. 3;
Fig. 9 is the E of an exhaust valve seat insert place enlarged diagram among Fig. 4;
Figure 10 is the F of an inlet valve seat ring place enlarged diagram among Fig. 4;
Figure 11 is the worm's eye view of Fig. 1;
Figure 12 is along the sectional drawing of B3-B3 among Fig. 2.
Sequence number explanation among the figure: 1 cylinder cap deflation area; 2 cylinder cap front cover locating studs (being used for the cylinder cap end cap correctly locatees); 3 cylinder cap main oil gallery exhaust side screw plugs; 4 cylinder cap front covers locking bolt; 5 cylinder cap front covers (being used for the sealing of cylinder cap end face sprocket wheel chamber); 6 exhaust side valve guide bushings; 7 air inlet side valve guide bushings; 8 exhaust side air valve seat rings; 2 seat ring mouths of 8-1 one cylinder exhaust valve; 2 seat ring mouths of 8-2 two cylinder exhaust valve; 2 seat ring mouths of 8-3 three cylinder exhaust valves; 2 seat ring mouths of 8-4 four cylinder exhaust valves; 9 air inlet side air valve seat rings; 2 seat ring mouths of 9-1 one cylinder intake valve; 2 seat ring mouths of 9-2 two cylinder intake valves; 2 seat ring mouths of 9-3 three cylinder intake valves; 2 seat ring mouths of 9-4 four cylinder intake valves; 10 gas-entered passageways; 11 exhaust passages; The thread Pilot hole of 12 spark plugs; 13 mounting hole of oil sprayer positions; The 14 transition conical surfaces; 15 exhaust side I camshaft bearings; 16 exhaust side II camshaft bearings; 17 exhaust side III camshaft bearings; 18 exhaust side IV camshaft bearings; 19 exhaust side V camshaft bearings; 20 air inlet side I camshaft bearings; 21 air inlet side II camshaft bearings; 22 air inlet side III camshaft bearings; 23 air inlet side IV camshaft bearings; 24 air inlet side V camshaft bearings; 25 1 cylinder firing chamber spheres add rounding off; 26 two cylinder firing chamber spheres add rounding off; 27 3 cylinder firing chamber spheres add rounding off; 28 4 cylinder firing chamber spheres add rounding off.
To do further explain to model utility through instance below, but following instance only is the utility model example wherein, the rights protection scope of not representing the utility model and being limited.
Embodiment
Describe in detail according to Fig. 1-12 pair the utility model.
This gasoline engine cylinder cover comprises the cylinder cap body, be arranged on exhaust side valve guide bushing 6 and air inlet side valve guide bushing 7, exhaust side air valve seat ring 8 and air inlet side air valve seat ring 9 (being used for the row of installation, intake valve), exhaust passage 11 and the gas-entered passageway 10 of exhaust side and intake-side camshaft bearing, the cylinder cap internal placement at cylinder cap top, also be provided with the thread Pilot hole 12 that spark plug is installed and be used for the positioning pin hole etc. of cylinder cap end face.The cylinder cap body generally adopts gray cast iron or alloy cast iron to cast, and the application's cylinder cap material is an aluminum alloy, and its thermal conductivity is good, helps improving compression ratio.
Cylinder cap belongs to distribution device in internal-combustion engine, mainly be to be used for sealing cylinder upper, constitutes the firing chamber, and as camshaft and pitman arm shaft, the support of air inlet and exhaust piper in addition.Mainly be to be drawn onto cylinder internal to air, spark plug is lighted burning mixture, drives the piston acting, and waste gas is discharged from outlet pipe.Simultaneously and since cylinder cap be installed in cylinder body above, from the top seal cylinder and constitute the firing chamber.It often contacts with high-temperature high-pressure fuel gas, therefore bears very big heat load and mechanical load.
Every cylinder four valves of the said cylinder cap of the application, promptly two advance two rows, and 16 valves of totally four cylinders see Figure 11 for details, make fuel gas buring more abundant.And inlet and outlet side air valve seat ring 9,8 and cylinder cap body adopt round-corner transition, like Figure 10, shown in 9, do not have projection, though then produce big explosive ratio during acting, still deflagration phenomenon can not take place during engine operation.Firing chamber and cylinder cap body intersection are the sphere rounding off simultaneously, and be shown in figure 12, more helps the effective sealing between cylinder head and the cylinder block.
The camshaft bearing of cylinder cap overhead is for the twin cam shaft configuration, is respectively exhaust side and intake-side camshaft bearing, sees Fig. 7 and Fig. 8 for details.Each position of crankshaft operation is directly delivered to camshaft through the flute profile band; And valve is directly opened or closed to process cam promotion hydraulic tappet; Thereby realize the accurate open and close inlet and outlet of distribution device door; Get in the firing chamber gasoline behind the mixed gas and atomizing and realize fully burning and make, improved fuel economy and body output power greatly.Also make the complete machine discharging reach Europe five standards, engine operation is got up, and running is more steady, power output is more stable and significantly reduce oil consumption.
Cylinder cap air inlet side is provided with the mounting hole of oil sprayer position that communicates with said gas-entered passageway, has installed behind the oil sprayer gasoline direct injection is carried out the oil gas atomizing to intake valve aditus laryngis place.Its atomizing effect is better, thereby reaches the order ground that promotes the complete machine power performance.
In addition, the arc line type that gas-entered passageway is set to extend, as shown in Figure 4, sufficient natural air further is provided, so that fuel oil is better diluted, get into through intake valve and realize fully burning in the firing chamber.
The thread Pilot hole that spark plug is installed adopts transition conical surface slyness to be connected with the jointing place, firing chamber; Like Fig. 5, shown in 6; The spark plug ignition position that takes into full account the ageing and accuracy of ignition location in the The combustion chamber and design makes the combustion gas after the atomizing fully burn according to mechanism of combustion.
Claims (2)
1. modified model gasoline engine cylinder cover; Comprise the cylinder cap body; The cylinder cap top is provided with the camshaft bearing; Cylinder cap internal placement exhaust side valve guide bushing and air inlet side valve guide bushing, exhaust side air valve seat ring and air inlet side air valve seat ring, exhaust passage and gas-entered passageway also are provided with thread Pilot hole that spark plug is installed and the positioning pin hole that is used for the cylinder cap end face, it is characterized in that:
Said inlet and outlet side air valve seat ring and cylinder cap body adopt round-corner transition;
Firing chamber and cylinder cap body intersection are the sphere rounding off;
The thread Pilot hole of said installation spark plug adopts transition conical surface slyness to be connected with the jointing place, firing chamber;
Said camshaft bearing is exhaust side cams bearing support and the intake-side camshaft bearing that is provided with respectively, forms the twin cam shaft configuration;
Cylinder cap air inlet side is provided with the mounting hole of oil sprayer position that communicates with said gas-entered passageway, has installed behind the oil sprayer gasoline direct injection is carried out the oil gas atomizing to intake valve aditus laryngis place;
The arc line type that said gas-entered passageway is set to extend.
2. modified model gasoline engine cylinder cover according to claim 1 is characterized in that: the every cylinder of cylinder cap is provided with four valves, i.e. two intake valves and two exhaust valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203941719U CN202228201U (en) | 2011-10-17 | 2011-10-17 | Improved cylinder cover of petrol engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203941719U CN202228201U (en) | 2011-10-17 | 2011-10-17 | Improved cylinder cover of petrol engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202228201U true CN202228201U (en) | 2012-05-23 |
Family
ID=46078789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203941719U Expired - Fee Related CN202228201U (en) | 2011-10-17 | 2011-10-17 | Improved cylinder cover of petrol engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202228201U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321772A (en) * | 2013-07-16 | 2013-09-25 | 江苏博众汽车部件有限公司 | Modularization cylinder head cover |
-
2011
- 2011-10-17 CN CN2011203941719U patent/CN202228201U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321772A (en) * | 2013-07-16 | 2013-09-25 | 江苏博众汽车部件有限公司 | Modularization cylinder head 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 |
Granted publication date: 20120523 Termination date: 20141017 |
|
| EXPY | Termination of patent right or utility model |