CN202117785U - Single-cylinder direct-injection type water-cooling diesel engine with cylinder diameter of 78 mm - Google Patents
Single-cylinder direct-injection type water-cooling diesel engine with cylinder diameter of 78 mm Download PDFInfo
- Publication number
- CN202117785U CN202117785U CN2011202183282U CN201120218328U CN202117785U CN 202117785 U CN202117785 U CN 202117785U CN 2011202183282 U CN2011202183282 U CN 2011202183282U CN 201120218328 U CN201120218328 U CN 201120218328U CN 202117785 U CN202117785 U CN 202117785U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- air flue
- diesel engine
- air
- vortex chamber
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a single-cylinder direct-injection type water-cooling diesel engine with the cylinder diameter of 78 mm. The single-cylinder direct-injection type water-cooling diesel engine comprises an air cylinder cover; a spiral air inlet passage is arranged on the air cylinder cover; the spiral air inlet passage consists of an air passage inlet, a vortex chamber and an air passage outlet which are of an integrated type; the vortex chamber of the spiral air inlet passage is of a spiral shape which is formed through the connecting of a plurality of three-dimensional arcs in a head-and-tail tangential manner; an integrated conduit lug boss is arranged on the vortex chamber; and the caliber of the air passage inlet is bigger than that of the air passage outlet. With the adoption of the single-cylinder direct-injection type water-cooling diesel engine with the cylinder diameter of 78 mm provided by the utility model, an inlet airflow can form high vortex, and the inlet airflow rate is hardly influenced and the air inlet resistance is also not increased, so that the mixing quality of air and fuel is remarkably enhanced, and the fuel consumption and the discharge are lowered.
Description
Technical field
The utility model relates to a kind of single-cylinder direct-injection diesel engine, and specifically, the utility model relates to a kind of single-cylinder direct-injection water-cooled diesel engine of 78mm cylinder diameter.
Background technique
At present; The power character of diesel engine with direct injection, Economy receive the influence of air inlet quality bigger; And the air inlet of diesel engine is fully from the intake duct that is arranged in the cylinder cap; Spiral intake duct is paid attention in the industry and is adopted, because higher intake swirl ability has active influence to power character, fuel economy and the exhaust index of complete machine.Spiral intake duct is for the diesel engine of little cylinder diameter, and the layout of intake duct trend receives the restriction of cylinder cap self structure size, is not easy to realize high-eddy; And the rotating speed of China's small-sized single cylinder diesel engine is lower than 3000 Zhuan ∕ branches mostly; Therefore take to increase the way of " training wall " in the ordinary course of things; Forced draft gets into cylinder along the water conservancy diversion direction of expection, to produce high-eddy, still; Make to reduce charge flow rate, increase intake resistance in this way, this situation is very disadvantageous for the motor that needs the oxygen-enriched combusting acting.
Summary of the invention
The utility model technical problem to be solved provides a kind of single-cylinder direct-injection water-cooled diesel engine of 78mm cylinder diameter of the spiral inlet duct with premium properties.
In order to solve the problems of the technologies described above, the utility model is realized through following technological scheme.
The single-cylinder direct-injection water-cooled diesel engine of this 78mm cylinder diameter; Comprise cylinder head; Cylinder head is provided with spiral inlet duct, and said spiral inlet duct is made up of the gentle road outlet of air flue import, the vortex chamber of integral type, and it is characterized in that: said air flue import is 25-27mm to air flue export center axis apart from M; The central axis of air flue outlet is 38～40mm to the distance L of air flue inletpiston, and the central axis of air flue import is 29～32mm to the distance H of air flue pelvic outlet plane; With planar central on the cylinder head is that initial point is set up two-dimensional coordinate, then the central axis of air flue outlet to coordinate axes X axle be 5～7mm apart from B, be 18～20mm to the distance A of coordinate axes Y axle.
In order to optimize the structure of spiral inlet duct; Make induction swirl ratio and energetic coefficient reach coupling preferably; The vortex chamber of said spiral inlet duct is by tangent be connected to form spiral-shaped of the three-dimensional circular arc head and the tail of multistage; Outside by the eddy current center, the radius of each section circular arc is R1:11～13mm, R2:15～17mm, R3:26～28mm, R4:67～69mm, R5:8～10mm, R6:25～27mm, R7:104～106mm, R8:39～41mm, R9:8～10mm respectively.
In order to improve the performance of vortex chamber, said vortex chamber is provided with the conduit boss of one, and the end face of conduit boss is 25～29mm to the distance h of air flue pelvic outlet plane.
For oil consumption and the discharging that reduces the single-cylinder direct-injection water-cooled diesel engine, said air flue import is bigger than the bore of air flue outlet.
Compared with prior art; The usefulness of the utility model is: can make inlet stream form higher eddy current after adopting this structure, and influence charge flow rate hardly, also not increase intake resistance; Therefore significantly improve the mixing quality of air and fuel oil, reduced oil consumption and discharging.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the position relational structure schematic representation of the utility model spiral inlet duct and cylinder head;
Fig. 2 is the utility model spiral inlet duct plan view;
Fig. 3 is the utility model spiral inlet duct worm's eye view.
Among the figure: 1, air flue import; 2, vortex chamber; 3, air flue outlet; 4, conduit boss.
Embodiment:
The single-cylinder direct-injection water-cooled diesel engine of Fig. 1, Fig. 2 and a kind of 78mm cylinder diameter shown in Figure 3 comprises cylinder head, and cylinder head is provided with spiral inlet duct, and said spiral inlet duct is made up of air flue import 1, vortex chamber's 2 gentle road outlets 3 of integral type; Said vortex chamber 2 is provided with the conduit boss 4 of one, and the end face of conduit boss 4 is 25～29mm to the distance h that air flue exports 3 planes; In order to guarantee that diesel engine has rational ratio data; What said air flue import 1 exported 3 central axis to air flue is 25-27mm apart from M; The central axis of air flue outlet 3 is 38～40mm to the distance L on air flue import 1 plane, and the central axis of air flue import 1 is 29～32mm to the distance H that air flue exports 3 planes; If the center with the cylinder cover upper planar surface is that initial point is set up two-dimensional coordinate; Then the central axis of air flue outlet 3 is 5～7mm to coordinate axes X axle apart from B; Distance A to coordinate axes Y axle is 18～20mm, thereby can improve the overall performance of vortex chamber, realizes high-eddy; In order to optimize the structure of spiral inlet duct; Make induction swirl ratio and energetic coefficient reach coupling preferably; The vortex chamber 2 of said spiral inlet duct is by tangent be connected to form spiral-shaped of the three-dimensional circular arc head and the tail of multistage; Outside by the eddy current center, the radius of each section circular arc is R1:11～13mm, R2:15～17mm, R3:26～28mm, R4:67～69mm, R5:8～10mm, R6:25～27mm, R7:104～106mm, R8:39～41mm, R9:8～10mm respectively; Said air flue import 1 is bigger than the bore of air flue outlet 3, thereby can reduce the oil consumption and the discharging of single-cylinder direct-injection water-cooled diesel engine.
It is emphasized that: above only is the preferred embodiment of the utility model; Be not that the utility model is done any pro forma restriction; Every technical spirit according to the utility model all still belongs in the scope of the utility model technological scheme any simple modification, equivalent variations and modification that above embodiment did.
Claims (4)
1. the single-cylinder direct-injection water-cooled diesel engine of a 78mm cylinder diameter; Comprise cylinder head; Cylinder head is provided with spiral inlet duct; Said spiral inlet duct is made up of the gentle road outlets in air flue import (1), vortex chamber (2) of integral type (3); It is characterized in that: said air flue import (1) is 25-27mm to air flue outlet (3) central axis apart from M, and the central axis of air flue outlet (3) is 38～40mm to the distance L on air flue import (1) plane, and the central axis of air flue import (1) is 29～32mm to the distance H on air flue outlet (3) plane; With planar central on the cylinder head is that initial point is set up two-dimensional coordinate, then the central axis of air flue outlet (3) to coordinate axes X axle be 5～7mm apart from B, be 18～20mm to the distance A of coordinate axes Y axle.
2. the single-cylinder direct-injection water-cooled diesel engine of 78mm cylinder diameter according to claim 1; It is characterized in that: the vortex chamber of said spiral inlet duct (2) are by tangent be connected to form spiral-shaped of the three-dimensional circular arc head and the tail of multistage; Outside by the eddy current center, the radius of each section circular arc is R1:11～13mm, R2:15～17mm, R3:26～28mm, R4:67～69mm, R5:8～10mm, R6:25～27mm, R7:104～106mm, R8:39～41mm, R9:8～10mm respectively.
3. the single-cylinder direct-injection water-cooled diesel engine of 78mm cylinder diameter according to claim 1; It is characterized in that: said vortex chamber (2) are provided with the conduit boss (4) of one, and the end face of conduit boss (4) is 25～29mm to the distance h on air flue outlet (3) plane.
4. the single-cylinder direct-injection water-cooled diesel engine of 78mm cylinder diameter according to claim 1 is characterized in that: said air flue import (1) is bigger than the bore of air flue outlet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202183282U CN202117785U (en) | 2011-06-27 | 2011-06-27 | Single-cylinder direct-injection type water-cooling diesel engine with cylinder diameter of 78 mm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202183282U CN202117785U (en) | 2011-06-27 | 2011-06-27 | Single-cylinder direct-injection type water-cooling diesel engine with cylinder diameter of 78 mm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202117785U true CN202117785U (en) | 2012-01-18 |
Family
ID=45458857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202183282U Expired - Fee Related CN202117785U (en) | 2011-06-27 | 2011-06-27 | Single-cylinder direct-injection type water-cooling diesel engine with cylinder diameter of 78 mm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202117785U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285998A (en) * | 2015-06-09 | 2017-01-04 | 陆懋增 | A kind of layering dual vortex air intake duct of direct-injection room diesel engine band transition drainage lumens |
-
2011
- 2011-06-27 CN CN2011202183282U patent/CN202117785U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285998A (en) * | 2015-06-09 | 2017-01-04 | 陆懋增 | A kind of layering dual vortex air intake duct of direct-injection room diesel engine band transition drainage lumens |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202117784U (en) | Single-cylinder direct-injection-type water cooled diesel engine with 125mm cylinder diameter | |
| CN202117785U (en) | Single-cylinder direct-injection type water-cooling diesel engine with cylinder diameter of 78 mm | |
| CN202811106U (en) | Air inlet mechanism of diesel motor | |
| CN201232591Y (en) | Single-cylinder straight spraying watercooling diesel engine of 85-90mm cylinder diameter | |
| CN202117786U (en) | Single cylinder direct injection type water-cooled diesel engine with 100mm cylinder diameter | |
| CN201193571Y (en) | Single-cylinder straight-injecting watercooling diesel engine with 75-80mm of cylinder diameter | |
| CN209212375U (en) | Air inlet path for diesel engine | |
| CN201810431U (en) | Diesel engine intake duct | |
| CN101968010B (en) | Die-casting cylinder cap for four-stroke small gasoline engine and manufacturing method thereof | |
| CN103696868A (en) | Internal combustion engine cylinder cover with high eddy ratio or high tumble ratio | |
| CN203374525U (en) | Inner circulating device of centrifugal-flow compressor | |
| CN206429290U (en) | The exhaust pipe structure of tractor four-cylinder diesel engine | |
| CN104279093A (en) | Plastic intake manifold air path for gasoline engine | |
| CN203403970U (en) | Single cylinder direct spraying type water-cooling diesel engine with cylinder diameter being 100mm | |
| CN2839574Y (en) | Stereo-helical air inlet | |
| CN202883180U (en) | Air inlet structure of supercharged engine | |
| CN2929205Y (en) | Screw air inlet path of single cylinder direct injection water cooling diesel engine | |
| CN205013138U (en) | Diesel engine cylinder cap structure | |
| CN201232590Y (en) | Single-cylinder vortex diesel engine of 75-80mm cylinder diameter | |
| CN202500669U (en) | Four-valve diesel engine spiral and tangential combination air inlet channel | |
| CN207568719U (en) | A kind of engine cylinder cap air flue | |
| CN106246398A (en) | A kind of cylinder cap of single-cylinder diesel engine and processing technique thereof | |
| CN203035365U (en) | Spiral air inlet ducts of four-valve diesel engine with cylinder diameter of phi 145mm | |
| CN201321910Y (en) | Helical inlet channel applicable to diesel engine with cylinder diameter of Phi 85mm | |
| CN102518503B (en) | Gas passage and combustion chamber structure of three-valve engine |
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: 20120118 Termination date: 20160627 |