CN206707864U - A kind of housing structure in automobile engine - Google Patents
A kind of housing structure in automobile engine Download PDFInfo
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- CN206707864U CN206707864U CN201720575938.5U CN201720575938U CN206707864U CN 206707864 U CN206707864 U CN 206707864U CN 201720575938 U CN201720575938 U CN 201720575938U CN 206707864 U CN206707864 U CN 206707864U
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- valve
- connecting rod
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- valve connecting
- cylinder block
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Abstract
The utility model provides the housing structure in a kind of automobile engine, belongs to automobile technical field.It solves the technical problems such as existing automobile engine cooling and lubricating effect is poor.A kind of housing structure in automobile engine, an avoidance chamber is provided with cylinder block, the outer surface of valve connecting rod one is provided with back-up ring one, the inner surface setting of valve connecting rod one has back-up ring two, the back-up ring three parallel with back-up ring two is provided with the outer wall of valve connecting rod two, stage clip spring one is fixedly installed between the top wall and back-up ring one of avoidance chamber, compression spring two is fixedly installed between back-up ring two and back-up ring three；There is cooling sap cavity in cylinder block, avoid chamber and communicated with cooling sap cavity；Cooling sap cavity and avoidance intracavitary are filled with coolant.The utility model has the advantages that to cool down rapid, high lubricating effect.
Description
Technical field
The utility model belongs to automobile technical field, the housing structure being related in a kind of automobile engine.
Background technology
With the development of Domestic Automotive Industry and economic society, China has become automobile consumption state maximum in the world.
Automobile engine is one of automobile three-major-items, is one of core technology of automobile, and fuel engines is typically all four
Stroke structure, including four air-breathing, compression, burning and exhaust work one way, with the continuous progress of engine technology, engine
It is intended to high accuracy, small size, energy-conservation, emission reduction etc. reversely to develop.
In the prior art, engine uses single inlet valve and single exhaust valve, and the engine of this structure is present
Following defect：1st, engine volume is larger, takes space in car hold；In order to avoid the limitation in space, cylinder number is more to be started
Machine has to cater to the needs of whole motor space by changing its placement direction；2nd, compression is smaller, and power performance needs
Improvement；3rd, fuel combustion is insufficient, and the unburned sufficiently fuel in part is discharged in a manner of waste gas, waste the energy, oil consumption it is higher,
Pollute environment.
In order to solve the above problems, technical staff also constantly attempts new method, wherein, turbocharging equipment, waste gas
Technology etc. of speeding is created in recirculating system, the blue sky of the high compression ratio of Mazda original creation, however, these improvement engine fuel economy
Property, dynamic property, drop row performance mode be all to be realized using external other equipment, this increases not only the manufacture of engine
Cost, in addition, it is desirable to which substantial amounts of control electronics are used as auxiliary, although these technologies are all more ripe, however, its cost performance
With combination property by about, the intake and exhaust mode of engine in itself does not change, and dependence external device simply is filled a vacancy to improve, this end
Returning influences the development of engine technology, and can make the more to walk the more narrow to obtain high performance road in itself by improveing engine,
It is unfavorable in the development of whole engine and automobile industry.
Utility model content
The purpose of this utility model is to be directed to above mentioned problem existing for existing technology, there is provided in a kind of automobile engine
Housing structure, technical problem to be solved in the utility model are to improve cylinder body cooling effect.
The purpose of this utility model can be realized by following technical proposal：A kind of housing structure in automobile engine,
Characterized in that, this engine includes cylinder block, combustion chamber, air inlet, air admission hole, steam vent, the cylinder being placed in combustion chamber
Piston, inlet valve, exhaust valve, camshaft and cam bit, the air inlet are located at the upper end of the cylinder block, the air admission hole with
The air inlet is communicated, and the inlet valve is plugged in the cylinder block, and can block the air inlet, the inlet valve bag
The valve connecting rod one and valve baffle ring being connected are included, the exhaust valve includes the valve connecting rod two and valve piston being connected, institute
It is hollow structure to state valve connecting rod one, and the valve connecting rod two and valve piston are plugged in the middle cavity of above-mentioned valve connecting rod one
It is interior, the venthole that can connect combustion chamber and steam vent is offered on the valve connecting rod one, the cam bit is fixed on described
On camshaft；An avoidance chamber is provided with the cylinder block, the outer surface of valve connecting rod one is provided with back-up ring one, the valve
The inner surface setting of connecting rod one has back-up ring two, and the back-up ring parallel with the back-up ring two is provided with the outer wall of the valve connecting rod two
Three, be fixedly installed stage clip spring one between the top wall and back-up ring one for avoiding chamber, the back-up ring two and back-up ring three it
Between be fixedly installed compression spring two；There is cooling sap cavity, the avoidance chamber communicates with the cooling sap cavity in the cylinder block；
The cooling sap cavity and avoidance intracavitary are filled with coolant.
The camshaft controlled by Timing Belt drives cam bit to drive inlet valve and exhaust valve to move up and down, and realizes cylinder
Air inlet, compression, burning, compression etc., because exhaust valve is arranged in inlet valve, save exhaust valve and the arrangement of its accessory structure
Space, reduce the horizontal space of engine.
Compression spring one and compression spring two can ensure that inlet valve and exhaust valve reset in real time, it is ensured that valve opening and
Close it is accurate, meanwhile, acted on by the high pressure-temperature of combustion chamber, the switching accuracy of inlet valve and exhaust valve can obtain double
Layer ensures.
Coolant can be carried out quick under the agitation of valve connecting rod one and valve connecting rod two with the coolant at other positions
Circulation, this is not only to improve the heat dispersion of small size engine, moreover, mutually interspersed folded to inlet valve and exhaust valve
For the structure of conjunction, the requirement of temperature with high efficiency, efficient impurity removal lubrication is ensured.
Compared with prior art, the utility model has advantages below：
1st, the camshaft controlled by Timing Belt drives cam bit to drive inlet valve and exhaust valve to move up and down, and realizes gas
The air inlet of cylinder, compression, burning, compression etc., because exhaust valve is arranged in inlet valve, save exhaust valve and the cloth of its accessory structure
Between being empty, the horizontal space of engine is reduced.
2nd, compression spring one and compression spring two can ensure that inlet valve and exhaust valve reset in real time, it is ensured that valve opening
It is accurate with closing, meanwhile, acted on by the high pressure-temperature of combustion chamber, the switching accuracy of inlet valve and exhaust valve can obtain
Bilayer ensures.
3rd, coolant can be carried out fast under the agitation of valve connecting rod one and valve connecting rod two with the coolant at other positions
The circulation of speed, this is not only the heat dispersion for improving small size engine, moreover, mutually interspersed to inlet valve and exhaust valve
For the structure of overlapping, the requirement of temperature with high efficiency, efficient impurity removal lubrication is ensured.
Brief description of the drawings
Fig. 1 is sectional view of this automobile engine in intake process.
Fig. 2 is sectional view of this automobile engine in compression process.
Fig. 3 is sectional view of this automobile engine during acting.
Fig. 4 is sectional view of this automobile engine in exhaust process.
Fig. 5 is the structural representation of this automobile engine convexity wheel shaft and cam bit.
Fig. 6 is the dimensional structure diagram of valve connecting rod one in this automobile engine.
Fig. 7 is the sectional view on A directions in Fig. 5.
In figure, 1, cylinder block；2nd, combustion chamber；31st, air inlet；32nd, air admission hole；33rd, steam vent；34th, cylinder piston；35、
Inlet valve；351st, valve connecting rod one；3511st, venthole；352nd, valve baffle ring；36th, exhaust valve；361st, valve connecting rod two；362、
Valve piston；37th, camshaft；38th, cam bit；381st, top wheel one；382nd, top wheel two；383rd, projection one；384th, projection two；385、
Recess；4th, chamber is avoided；41st, back-up ring one；42nd, back-up ring two；43rd, back-up ring three；45th, stage clip spring one；46th, compression spring two；5th, keep away
Allow groove；6th, sap cavity is cooled down.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in Fig. 1, Fig. 5 and Fig. 7, this engine includes cylinder block 1, combustion chamber 2, air inlet 31, air admission hole 32, exhaust
Hole 33, the cylinder piston 34 being placed in combustion chamber 2, inlet valve 35, exhaust valve 36, camshaft 37 and cam bit 38, air inlet 31
Positioned at the upper end of cylinder block 1, air admission hole 32 is communicated with air inlet 31, and inlet valve 35 is plugged in cylinder block 1, and can block into
Gas port 31, inlet valve 35 include the valve connecting rod 1 and valve baffle ring 352 being connected, and exhaust valve 36 includes the gas being connected
Door connecting rod 2 361 and valve piston 362, valve connecting rod 1 are hollow structure, and valve connecting rod 2 361 and valve piston 362 are equal
The hollow intracavitary of above-mentioned valve connecting rod 1 is plugged in, combustion chamber 2 and exhaust can be connected by being offered on valve connecting rod 1
The venthole 3511 in hole 33, cam bit 38 are fixed on camshaft 37；Cam bit 38 and valve connecting rod 1 and valve connecting rod two
361 upper end is against and can controlling valve connecting rod 1 and valve connecting rod 2 361 to move up and down.
The camshaft 37 controlled by Timing Belt drives cam bit 38 to drive inlet valve 35 and exhaust valve 36 to move up and down,
The air inlet of cylinder, compression, burning, compression etc. are realized, because exhaust valve 36 is arranged in inlet valve 35, saves exhaust valve 36 and its
The arrangement space of accessory structure, reduce the horizontal space of engine.
As shown in figure 1, being provided with an avoidance chamber 4 in cylinder block 1, the outer surface of valve connecting rod 1 is provided with back-up ring 1,
The inner surface setting of valve connecting rod 1 has back-up ring 2 42, is provided with the outer wall of valve connecting rod 2 361 parallel with back-up ring 2 42
Back-up ring 3 43, avoid and be fixedly installed stage clip spring 1 between the top wall and back-up ring 1 of chamber 4, back-up ring 2 42 and gear
Compression spring 2 46 is fixedly installed between enclosing 3 43.
Compression spring one and compression spring 2 46 can ensure that inlet valve 35 and exhaust valve 36 reset in real time, it is ensured that valve
Open and close it is accurate, meanwhile, acted on by the high pressure-temperature of combustion chamber 2, the switch essence of inlet valve 35 and exhaust valve 36
Degree can obtain double-deck guarantee.
As shown in fig. 7, cam bit 38, which includes two tops, takes turns one 381 and a top wheel 2 382, top wheel 1 is located at two
Between top wheel 2 382, there is a projection 1 on top wheel 1, there is a projection 2 384 and a recess on top wheel 2 382
385。
The summit of projection 1 to the summit of the line between the axis of camshaft 37 and projection 2 384 is to camshaft 37
Axis between line be in an angle, angle is between 78 °~102 °；The needs allocated according to engine, the angle is adjustable
Save inlet period and waste gas drain time.
Preferably, the summit of projection 1 to the summit of the line between the axis of camshaft 37 and projection 2 384 extremely
The angle between line between the axis of camshaft 37 is between 78 °~90 °；Progress and fuel oil product with engine technology
The raising of matter, angle are arranged between 78 °~90 °, it is possible to increase exhaust gas utilization ratio, are reduced heat dissipation, passed through its other party
Formula increases oxygen accounting, avoids fuel oil burning insufficient.
As shown in fig. 6, the upper end of valve connecting rod 1 has an escape groove 5；The lateral dimension of escape groove 5, which is more than top, takes turns
2 382 lateral dimension.The escape groove 5 in order to prevent top wheel 1 and top wheel 2 382 between interference.
Venthole 3511 is located between up peak and the descending minimum point of valve piston 362.
The aperture of air admission hole 32 gradually expands along airintake direction, and the aperture of steam vent 33 gradually expands along discharge directions；Increase
Big pressure at expulsion, produce negative pressure during air inlet, by the descending of valve piston 362, further increase intake swirl, improve into
Tolerance.
The aperture of the initial position of air admission hole 32 is 6~8 times of the aperture of the initial position of steam vent 33, as shown in figure 4, exhaust
When, high exhaust temperatures high pressure is smaller by the aperture initial position of steam vent 33 as energy of the accounting more than 20%, then by
The big mode of flaring, reduce heat and scatter and disappear, half of stroke before exhaust, pass through moving down for valve piston 362, the passage of exhaust
Moment is unimpeded, however, go out hole and the initial position aperture of steam vent 33 it is smaller, stroke high pressure gas, in rear half of row of exhaust
Journey, valve piston 362 progressively close off the lower ending opening of valve connecting rod 1, and continue to move up, compression valve piston 362 and gas
Space between door connecting rod 1, forms larger pressure, while in the negative pressure formed below of valve piston 362, in inlet valve
During 35 unlatching, intake swirl can be quickly formed, moreover, in the folding process of valve piston 362, maintains air inflow constant
Under the premise of, the volume of combustion chamber 2 is reduced, compression ratio is improved, is improved fuel economy and combustion efficiency.
There is cooling sap cavity 6 in cylinder block 1, avoid chamber 4 and communicated with cooling sap cavity 6；Cool down sap cavity 6 and avoid in chamber 4
It is filled with coolant；Coolant, can be cold with other positions under the agitation of valve connecting rod 1 and valve connecting rod 2 361
But liquid is quickly circulated, and this is not only the heat dispersion for improving small size engine, moreover, to inlet valve 35 and row
For the structure of the mutually interspersed overlapping of valve 36, the requirement of temperature with high efficiency, efficient impurity removal lubrication is ensured.
As shown in Figure 2 and Figure 6, for valve connecting rod 1, the contact section and top wheel 2 382 of two arcs are high
Speed collision and friction, because contact surface is larger, and contact point changes at any time, guide pillar its be not easily formed abrasion it is uneven situations such as
Occur, improve the seal of inlet valve 35 and reliability.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, preceding half of stroke in intake process, acted in the flow-disturbing of venthole 3511
Under, the side effect of the gases at high pressure of the interior intracavitary of the valve connecting rod 1 of the lower section of valve piston 362 to air admission hole 32 is reduced, and
And because the setting of venthole 3511 is away from the main air inlet position of air admission hole 32, the side effect of the air-flow of gas outlet to air inlet
Almost very little, this has been considerably improved air inflow；In rear half of stroke of intake process, Inflow inertia force fades away, production
Raw backflow inertia force, venthole 3511 can play a part of equilibrium air pressure, make backflow inertia force declines, in valve piston
Increase the initial pressure of combustion chamber 2, while increasing compression ratio in 362 folding process, improve fuel economy and power performance.
By reducing the initial aperture of steam vent 33, portion has little time to discharge, and enters air admission hole 32, forms air inlet
The backflow phenomenon of hole 32, in valve opening procedure, air-flow is quickly reversed, and forms inertia force, and portion and clean atmosphere are filled
Enter combustion chamber 2, the effect of similar gas recirculation system, there is the effect of energy-saving and emission-reduction.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (1)
- A kind of 1. housing structure in automobile engine, it is characterised in that this engine include cylinder block (1), combustion chamber (2), Air inlet (31), air admission hole (32), steam vent (33), the cylinder piston (34) being placed in combustion chamber (2), inlet valve (35), row Valve (36), camshaft (37) and cam bit (38), the air inlet (31) are located at the upper end of the cylinder block (1), it is described enter Stomata (32) is communicated with the air inlet (31), and the inlet valve (35) is plugged in the cylinder block (1), and can block institute Air inlet (31) is stated, the inlet valve (35) includes the valve connecting rod one (351) and valve baffle ring (352) being connected, the row Valve (36) includes the valve connecting rod two (361) and valve piston (362) being connected, and the valve connecting rod one (351) is hollow Structure, the valve connecting rod two (361) and valve piston (362) are plugged in the hollow intracavitary of above-mentioned valve connecting rod one (351), The venthole (3511) of combustion chamber (2) and steam vent (33) can be connected by being offered on the valve connecting rod one (351), described convex Wheel block (38) is fixed on the camshaft (37)；An avoidance chamber (4), the valve connecting rod are provided with the cylinder block (1) One (351) outer surface is provided with back-up ring one (41), and the inner surface setting of the valve connecting rod one (351) has back-up ring two (42), institute State and the back-up ring three (43) parallel with the back-up ring two (42) is provided with the outer wall of valve connecting rod two (361), the avoidance chamber (4) Top wall and back-up ring one (41) between be fixedly installed stage clip spring one (45), the back-up ring two (42) and back-up ring three (43) Between be fixedly installed compression spring two (46)；There is cooling sap cavity (6), the avoidance chamber (4) and institute in the cylinder block (1) Cooling sap cavity (6) is stated to communicate；Coolant is filled with the cooling sap cavity (6) and avoidance chamber (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720575938.5U CN206707864U (en) | 2017-05-23 | 2017-05-23 | A kind of housing structure in automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720575938.5U CN206707864U (en) | 2017-05-23 | 2017-05-23 | A kind of housing structure in automobile engine |
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| Publication Number | Publication Date |
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| CN206707864U true CN206707864U (en) | 2017-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720575938.5U Expired - Fee Related CN206707864U (en) | 2017-05-23 | 2017-05-23 | A kind of housing structure in automobile engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590797A (en) * | 2018-03-05 | 2018-09-28 | 中国北方发动机研究所(天津) | A kind of high-speed diesel engine combined type valve and its driving mechanism |
-
2017
- 2017-05-23 CN CN201720575938.5U patent/CN206707864U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590797A (en) * | 2018-03-05 | 2018-09-28 | 中国北方发动机研究所(天津) | A kind of high-speed diesel engine combined type valve and its driving mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171205 Termination date: 20200523 |
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| CF01 | Termination of patent right due to non-payment of annual fee |