CN204609968U - A kind of petrol engine - Google Patents
A kind of petrol engine Download PDFInfo
- Publication number
- CN204609968U CN204609968U CN201520160216.4U CN201520160216U CN204609968U CN 204609968 U CN204609968 U CN 204609968U CN 201520160216 U CN201520160216 U CN 201520160216U CN 204609968 U CN204609968 U CN 204609968U
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- cylinder head
- cam shaft
- valve
- exhaust
- valve chamber
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Abstract
The utility model relates to a kind of petrol engine, a kind of petrol engine, comprises cylinder block, piston, distribution device, chain drive, intake manifold, spark plug, the high voltage damper be connected with spark plug, cylinder head, is arranged on the valve chamber cover above cylinder head and is arranged on the valve chamber cover cover plate, outlet pipe, oil pan, bent axle, front cover etc. that described cyclinder head cover covers.Adopt technique scheme, had very large improvement no matter whole motor is outward appearance or performance, its power character, Economy significantly improve, and achieve the advantage that exhaust emission is little, noise is low.
Description
Technical field
The utility model relates to a kind of petrol engine, belongs to technical field of engines, is specifically related to the petrol engine of a kind of discharge capacity 3.7 liters.
Background technique
At present, the CA4102 petrol engine of domestic production is the four-cylinder gasoline machine of national maximum cylinder diameter, but because it is backward in technique, still adopt old-fashioned production technology, underneath camshaft, every cylinder two valve, the transmitting assembliess such as tappet, push rod, rocker arm body, though through in many ways improving, its power character, Economy and the feature of environmental protection are still poor, still there is very large gap with domestic and international advanced technology.As shown in Figure 1, 2, wherein: 1 ', cylinder block, 2 ', connecting rod, 3 ', bent axle, 4 ', camshaft 5 ', tappet, 6 ', piston, 7 ', firing chamber, 8 ', cylinder head, 9 ', push rod, 10 ', valve, 11 ', pitman arm shaft, 12 ', rocking arm, 32 ', intake valve mounting hole, 33 ', exhaust mounting hole, 34 ' spark plug mounting hole.Its assembly relation is: camshaft 4 ' is loaded on the side of the upper bent axle 3 ' of cylinder body 1 ', tappet 5 ' is vertically loaded on camshaft 4 ' peach point corresponding position, it is inner that tappet 9 ' one end is placed in tappet 5 ', the other end withstands on rocking arm 12 ' and is with below adjusting bolt end; rocking arm 12 ' is contained on pitman arm shaft 11 ' and is fixed on cylinder head 8 ' top; and rocking arm 12 ' is corresponding to each inlet and exhaust valve 10 ' position, and the other end of rocking arm 12 ' is pressed in valve 10 ' upper end and drives valve to do straight line motion downwards.Its kind of drive is: bent axle 3 ' rotating drive cam axle 4 ' rotates, camshaft 4 ' peach point drives tappet 5 ' to do upper and lower straight line motion, tappet 5 ' drives tappet 9 ' to do upper and lower straight line motion, tappet 9 ' promotes the lever motion that rocking arm 12 ' does seesaw type, and the rocking arm 12 ' the other end promotes valve 10 ' and opens.
This kind of structure driven chain is long, and due to reasons such as assembling, wearing and tearing, needs continuous valve gap adjustment, also result in noise simultaneously and discharges not up to standard, bringing a lot of trouble to client.
More by people to engine performance index request more and more higher and tail-gas law increasingly stringent, this structure of every cylinder two valve has seemed and has fallen behind, as shown in Figure 2, be furnished with an intake valve mounting hole 32 ', exhaust valve mounting hole 33 ', a side, firing chamber in the firing chamber 16 ' of cylinder head 10 ' and be furnished with spark plug mounting hole 34 '.
Model utility content
The utility model problem to be solved in the utility model is to provide the petrol engine of a kind of Dual Over Head Camshaft, every cylinder Four valve, hydraulic tappet, non-maintaining chain transmission, power is large, oil consumption is low, exhaust emission is little, noise is low advantage that it has.
The technological scheme that the utility model is taked is: a kind of petrol engine, comprises cylinder block, distribution device, chain drive, intake manifold, spark plug, the high voltage damper be connected with spark plug, cylinder head, is arranged on the valve chamber cover above cylinder head and is arranged on valve chamber cover cover plate, outlet pipe, oil pan, bent axle, the front cover that described cyclinder head cover covers; It is characterized in that described distribution device is arranged in cylinder head inside, spark plug is arranged on the neutral position of the firing chamber in cylinder head, cylinder head is arranged on the top of cylinder block, and chain drive is arranged in the front-end face of cylinder block and head, and crankshaft rotating drives whole chain drive synchronous rotary;
Described high voltage damper is arranged in the neutral position of valve chamber cover 11, by cylinder head, valve chamber cover, valve chamber cover cover plate, high voltage damper is shielded from a seal space, and draws from cylinder head rear end;
Described distribution device comprises the admission gear and exhaust gear that are arranged in cylinder head both sides; Described admission gear comprises intake valve, admission cam shaft, admission cam shaft bearing cap; Described exhaust gear comprises exhaust cam shaft bearing cap, exhaust cam shaft, hydraulic tappet, exhaust valve;
Described chain drive comprises the crankshaft timing sprocket being installed on crankshaft front end, the admission cam shaft timing sprocket being installed on admission cam shaft front end, is installed on exhaust cam shaft front end exhaust cam shaft timing sprocket, timing chain is installed on three sprocket wheels, determining the outside that rail assembly and dynamic rail assembly be arranged in timing chain both sides to lead to it, being installed on the tension device assembly 31 of dynamic rail assembly lower end by realizing adjusting the elasticity of timing chain to the position adjustment of dynamic rail assembly;
Described chain drive by be arranged on cylinder head front end chain greasisng nozzle I and be arranged on the chain greasisng nozzle II of cylinder block front end, eject machine oil and whole chain drive lubricated;
Described chain drive is installed on the front end of whole motor, is combined into a seal space by cylinder block, cylinder head, the front cover of subsidiary oil pump, the valve chamber cover being installed on cylinder head top and the oil pan be installed on bottom cylinder block 1.
Described a kind of petrol engine, it is characterized in that, containing four valves in each firing chamber, namely the both sides of cylinder cap length direction are respectively equipped with two intake valves and two exhaust valves, top of combustion chamber center is provided with spark plug mounting hole, in the top length direction of cylinder head, the both sides of corresponding inlet and exhaust valve are provided with the bearing support installing camshaft, form Dual Over Head Camshaft, hydraulic tappet and valve are housed under the flange of camshaft.
The utility model has continued to use the feature of the maximum cylinder diameter of CA4102, piston stroke and discharge capacity constant, but the performance index of product technologies improves a lot.Petrol engine of the present utility model and former CA4102 petrol engine important technological parameters contrast as follows:
| Unit | CA4102 | The utility model | |
| Cylinder number | Individual | 4 | 4 |
| Discharge capacity | L | 3.7 | 3.7 |
| Bore/stroke | ㎜×㎜ | 101.6×114.3 | 101.6×114.3 |
| Camshaft location | Underneath type | Double overhead | |
| The kind of drive | Belt transmission | Chain conveyer | |
| Every cylinder valve number | 2 | 4 | |
| Rated power | kW/r/min | 91/3200 | 108/3200 |
| Rated torque | N·m/r/min | 300/2000 | 325/2200 |
| Minimum specific fuel consumption | g/kW·h | ∠300 | ∠260 |
| Discharge | State II | State IV or state V |
Adopt technique scheme, had very large improvement no matter whole motor is outward appearance or performance, its power character, Economy significantly improve, and achieve the advantage that exhaust emission is little, noise is low.
Accompanying drawing explanation
Below the content expressed by this Figure of description and the mark in figure are briefly described: Fig. 1 is the petrolic schematic diagram of prior art;
Fig. 2 is the cylinder head schematic diagram of prior art;
Fig. 3 is the petrolic sectional elevation of the utility model;
Fig. 4 is the utility model front end for gasoline engine Chain conveyer sectional view;
Fig. 5 is that in the petrolic firing chamber of the utility model, valve arranges schematic diagram.Be labeled as in figure: 1, cylinder block, 2, piston, 3, intake valve, 4, intake manifold, 5, admission cam shaft, 6, admission cam shaft bearing cap, 7, spark plug, 8, high voltage damper, 9, valve chamber cover cover plate, 10, cylinder head, 11, valve chamber cover, 12, exhaust cam shaft bearing cap, 13, exhaust cam shaft, 14, hydraulic tappet, 15, exhaust valve, 16, firing chamber, 17, outlet pipe, 18, oil pan, 20, bent axle, 21, crankshaft timing sprocket, 22, oil pump, 23, determine rail assembly, 24, front cover, 25, admission cam shaft timing sprocket, 26, timing chain, 27, exhaust cam shaft timing sprocket, 28, chain greasisng nozzle I, 29, dynamic rail assembly, 30, chain greasisng nozzle II, 31, tension device assembly, 32, intake valve mounting hole, 33, exhaust valve mounting hole, 34, spark plug mounting hole.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the utility model is described in further detail: these accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model is described in a schematic way.
Its technological scheme comprises: cylinder block 1, piston 2, resonant mode intake manifold 4, admission cam shaft 5, Four-valve cylinder head 10, valve chamber cover 11, cyclinder head cover cover plate 9, exhaust cam shaft 13, outlet pipe 17, oil sump 18, crankshaft timing sprocket 21, subsidiary oil pump type front cover 24, formation such as timing chain 26 grade.Its main improvement is four firing chambers bottom cylinder head, containing four valves in each firing chamber, namely the both sides of cylinder cap length direction are respectively equipped with two intake valves and two exhaust valves, top of combustion chamber center is provided with spark plug mounting hole, in the top length direction of cylinder head, the both sides of corresponding inlet and exhaust valve are provided with the bearing support installing camshaft, form Dual Over Head Camshaft, under the flange of camshaft, hydraulic tappet, valve etc. are housed.Above cylinder head, valve chamber cover is installed, valve chamber cover cover plate is housed by inner at cylinder head, valve chamber cover for the high voltage damper shielding connecting spark plug above valve chamber cover.At body front-end face, a crankshaft timing sprocket being loaded on crankshaft front end, two cam shaft timing chain wheels being loaded on intake and exhaust cam axle front end are respectively provided with non-maintaining metal timing chain, by dynamic rail assembly, determine rail assembly supporting, guiding also tension device assembly is finely tuned chain elasticity, be combined into chain drive, and by two the chain greasisng nozzles be arranged on respectively on cylinder cap front-end face and cylinder body front-end face, splash system lubrication is realized to chain, be connected with valve chamber cover above the front cover being accompanied with oil pump, below is connected with oil pan, whole transmission system is sealed.As shown in accompanying drawing 3, accompanying drawing 4, what form the utility model basic structure comprises cylinder block 1, intake manifold 3, spark plug 7, high voltage damper 8, valve chamber cover cover plate 9, cylinder head 10, valve chamber cover 11, oil pan 18, bent axle 20, front cover 24, the high voltage damper 8 connecting spark plug 7 is arranged in the neutral position of valve chamber cover 11, by cylinder head 10, valve chamber cover 11, valve chamber cover cover plate 9, high voltage damper 8 is shielded from a seal space, and draws from cylinder head 10 rear end, what form engine valve actuating mechanism comprises the intake valve 3 be arranged in cylinder head 10, admission cam shaft 5, exhaust cam shaft 13, hydraulic tappet 14, exhaust valve 15 etc., admission gear and exhaust gear are arranged in the both sides of cylinder head 10, admission cam shaft 5 is fixed on the air inlet side of cylinder head 10 by admission cam shaft bearing cap 6, and exhaust cam shaft 13 is fixed on the exhaust side of cylinder head 10 by exhaust cam shaft bearing cap 12, what form motor chain drive comprises the crankshaft timing sprocket 21 being installed on bent axle 20 front end, be installed on the admission cam shaft timing sprocket 25 of admission cam shaft 5 front end, be installed on the exhaust cam shaft timing sprocket 27 of exhaust cam shaft 13 front end, timing chain 26 is installed on three sprocket wheels, determine the outside that rail assembly 23 and dynamic rail assembly 29 be arranged in timing chain 26 both sides to support it, guiding, the tension device assembly 31 being installed on dynamic rail assembly 29 lower end realizes adjusting the elasticity of timing chain 26 by carrying out adjustment to dynamic rail assembly 29 lower end position.Chain drive is installed on the front end of whole motor, by cylinder block 1, cylinder head 10, subsidiary oil pump 22 front cover 24, be installed on the valve chamber cover 11 at cylinder head 10 top, the oil pan 18 be installed on bottom cylinder block 1 is combined into a seal space; In order to lubricate whole chain drive, in the front end of cylinder head 10, chain greasisng nozzle I 28 is installed, its mounting hole communicates with the oil duct in cylinder head 10, and be provided with chain greasisng nozzle II 30 in cylinder block 1 front end, its mounting hole communicates with the oil duct in cylinder block 1; Bent axle 20 rotarily drives whole chain drive and rotates, also rotor driven formula oil pump 22 is rotated simultaneously, machine oil is pressed in cylinder block 1 main oil gallery, be redistributed to each lubricating system, machine oil leads to chain greasisng nozzle I 28 in cylinder head 10 and cylinder block 2 oil duct and chain greasisng nozzle II 30 carries out splash system lubrication to whole chain drive.
As shown in Figure 5, be furnished with two intake valve mounting holes 32, two exhaust valve mounting holes 33, top of combustion chamber in the firing chamber 16 of cylinder head 10 and be furnished with spark plug mounting hole 34.
As shown in Figure 5, adopt Four-valve technology, air input of engine by air increases, and fuel combustion is more abundant, and fuel economy and power character are just better, and exhaust emission also just reduces; Adopt hydraulic tappet, tappet length is changed by the axial automatic regulating function of hydraulic tappet, compensate valve thermal expansion amount at any time, therefore do not need reserved valve clearance, do not need because irregular valve gap adjustment is carried out in rocking arm wearing and tearing etc. yet, decrease simultaneously because of the defective initiation in valve clearance noise and discharge not up to standard.
The Main Function of timing driving system is used to the distribution device driving motor, makes the inlet and outlet door of motor open in due course or close, ensures that the cylinder of motor can normally air-breathing and exhaust.Chain transmission as shown in Figure 3, by high duty metal chain, be connected being installed on the sprocket wheel of bent axle with parts such as camshafts and making it keep run-in synchronism, because its transmitted power is high, reliability and wear resistance high, achieve the remarkable advantages such as maintenance-free, overcome the inconvenience brought by belt transmission, as, common Timing Belt belongs to rubber components, along with the increase of engine operating duration, Timing Belt can wear and tear, aging and be elongated, as changed not in time, Timing Belt is once jump tooth or fracture, the action of engine running parts will entanglement and cause parts damages, engine breathing door and inharmonious the causing of engine piston motion collide damage, belt is elongated phenomenons such as can causing motor skidding.
The utility model is not limited to petrol engine, as long as to the engine compression ratio of this structure or change parts thereof material or structure, is used for gas-firing, liquid gas, methyl alcohol or its fuel combination, just defines different types of motor.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.
Claims (2)
1. a petrol engine, comprises cylinder block (1), distribution device, chain drive, intake manifold (3), spark plug (7), the high voltage damper (8) be connected with spark plug (7), cylinder head (10), the valve chamber cover (11) being arranged on cylinder head (10) top and the valve chamber cover cover plate (9), outlet pipe (17), oil pan (18), bent axle (20), the front cover (24) that are arranged on described valve chamber cover (11); It is characterized in that described distribution device is arranged in cylinder head inside, spark plug (7) is arranged on the neutral position of the firing chamber (16) in cylinder head (10), cylinder head (10) is arranged on the top of cylinder block (1), chain drive is arranged in the front-end face of cylinder block (1) and cylinder head (10), and bent axle (20) rotarily drives whole chain drive synchronous rotary;
Described high voltage damper (8) is arranged in the neutral position of valve chamber cover 11, by cylinder head (10), valve chamber cover (11), valve chamber cover cover plate (9), high voltage damper (8) is shielded from a seal space, and draws from cylinder head (10) rear end;
Described distribution device comprises the admission gear and exhaust gear that are arranged in cylinder head (10) both sides; Described admission gear comprises intake valve (3), admission cam shaft (5), admission cam shaft bearing cap (6); Described exhaust gear comprises exhaust cam shaft bearing cap (12), exhaust cam shaft (13), hydraulic tappet (14), exhaust valve (15);
Described chain drive comprises the crankshaft timing sprocket (21) being installed on bent axle (2) front end, be installed on the admission cam shaft timing sprocket (25) of admission cam shaft (5) front end, be installed on exhaust cam shaft (13) front end exhaust cam shaft timing sprocket (27), timing chain (26) is installed on three sprocket wheels, determine the outside that rail assembly (23) and dynamic rail assembly (29) be arranged in timing chain (26) both sides to lead to it, be installed on the tension device assembly 31 of dynamic rail assembly (29) lower end by realizing adjusting the elasticity of timing chain (26) to the position adjustment of dynamic rail assembly (29),
Described chain drive by be arranged on cylinder head (10) front end chain greasisng nozzle I (28) and be arranged on the chain greasisng nozzle II (30) of cylinder block (1) front end, eject machine oil and whole chain drive lubricated;
Described chain drive is installed on the front end of whole motor, is combined into a seal space by cylinder block (1), cylinder head (10), the front cover (24) of subsidiary oil pump (22), the valve chamber cover (11) being installed on cylinder head (10) top and the oil pan (18) be installed on bottom cylinder block 1.
2. a kind of petrol engine as claimed in claim 1, it is characterized in that, containing four valves in each firing chamber, namely the both sides of cylinder cap length direction are respectively equipped with two intake valves and two exhaust valves, top of combustion chamber center is provided with spark plug mounting hole, in the top length direction of cylinder head, the both sides of corresponding inlet and exhaust valve are provided with the bearing support installing camshaft, form Dual Over Head Camshaft, hydraulic tappet and valve are housed under the flange of camshaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520160216.4U CN204609968U (en) | 2015-03-21 | 2015-03-21 | A kind of petrol engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520160216.4U CN204609968U (en) | 2015-03-21 | 2015-03-21 | A kind of petrol engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204609968U true CN204609968U (en) | 2015-09-02 |
Family
ID=53962541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520160216.4U Expired - Fee Related CN204609968U (en) | 2015-03-21 | 2015-03-21 | A kind of petrol engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204609968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763487A (en) * | 2015-03-21 | 2015-07-08 | 山西新天地发动机制造有限公司 | Gasoline engine |
-
2015
- 2015-03-21 CN CN201520160216.4U patent/CN204609968U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763487A (en) * | 2015-03-21 | 2015-07-08 | 山西新天地发动机制造有限公司 | Gasoline engine |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20160321 |