CN202117784U - Single-cylinder direct-injection-type water cooled diesel engine with 125mm cylinder diameter - Google Patents
Single-cylinder direct-injection-type water cooled diesel engine with 125mm cylinder diameter Download PDFInfo
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- CN202117784U CN202117784U CN2011202183263U CN201120218326U CN202117784U CN 202117784 U CN202117784 U CN 202117784U CN 2011202183263 U CN2011202183263 U CN 2011202183263U CN 201120218326 U CN201120218326 U CN 201120218326U CN 202117784 U CN202117784 U CN 202117784U
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- cylinder
- air flue
- diesel engine
- vortex chamber
- spiral
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- 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
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Abstract
The utility model relates to a single-cylinder direct-injection-type water cooled diesel engine with a 125mm cylinder diameter, which comprises a cylinder cover. A spiral air inlet channel is arranged on the cylinder cover and consists of an air channel inlet, a vortex chamber and an air channel outlet which are integrated. The vortex chamber of the spiral air inlet channel is spiral, a plurality of three-dimensional circular arcs are connected end to end in a tangential manner to form the spiral vortex chamber, an integral guide pipe boss is disposed on the vortex chamber, and the diameter of the air channel inlet is larger than that of the air channel outlet. By the aid of the single-cylinder direct-injection-type water cooled diesel engine with the 125mm cylinder diameter, high vortexes of inlet air current can be formed, inlet airflow is barely affected, increase of air inlet resistance is avoided, accordingly, mixing quality of air and fuel is remarkably improved, and fuel consumption and emission are reduced.
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 125mm 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 125mm 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 125mm 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 19-21mm to air flue export center axis apart from M; The central axis of air flue outlet is 63～65mm to the distance L of air flue inletpiston, and the central axis of air flue import is 64～66mm 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 7～9mm apart from B, be 29～31mm 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 R1:37～39mm, R2:250～252mm, R3:28～30mm, R4:23～25mm, R5:26～28mm, R6:38～40mm, R7:873～875mm, R8:35～37mm, R9:96～98mm, R10:29～31mm, R11:38～40mm, R12:140～142mm, R13:65～67mm, R14:175～177mm 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 46～48mm 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 125mm 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 46～48mm 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 19-21mm apart from M; The central axis of air flue outlet 3 is 63～65mm to the distance L on air flue import 1 plane, and the central axis of air flue import 1 is 64～66mm 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 7～9mm to coordinate axes X axle apart from B; Distance A to coordinate axes Y axle is 29～31mm, 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 R1:37～39mm, R2:250～252mm, R3:28～30mm, R4:23～25mm, R5:26～28mm, R6:38～40mm, R7:873～875mm, R8:35～37mm, R9:96～98mm, R10:29～31mm, R11:38～40mm, R12:140～142mm, R13:65～67mm, R14:175～177mm 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 125mm 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 19-21mm to air flue outlet (3) central axis apart from M, and the central axis of air flue outlet (3) is 63～65mm to the distance L on air flue import (1) plane, and the central axis of air flue import (1) is 64～66mm 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 7～9mm apart from B, be 29～31mm to the distance A of coordinate axes Y axle.
2. the single-cylinder direct-injection water-cooled diesel engine of 125mm 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 R1:37～39mm, R2:250～252mm, R3:28～30mm, R4:23～25mm, R5:26～28mm, R6:38～40mm, R7:873～875mm, R8:35～37mm, R9:96～98mm, R10:29～31mm, R11:38～40mm, R12:140～142mm, R13:65～67mm, R14:175～177mm respectively.
3. the single-cylinder direct-injection water-cooled diesel engine of 125mm 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 46～48mm to the distance h on air flue outlet (3) plane.
4. the single-cylinder direct-injection water-cooled diesel engine of 125mm 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 |
|---|---|---|---|
| CN2011202183263U CN202117784U (en) | 2011-06-27 | 2011-06-27 | Single-cylinder direct-injection-type water cooled diesel engine with 125mm cylinder diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202183263U CN202117784U (en) | 2011-06-27 | 2011-06-27 | Single-cylinder direct-injection-type water cooled diesel engine with 125mm cylinder diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202117784U true CN202117784U (en) | 2012-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202183263U Expired - Fee Related CN202117784U (en) | 2011-06-27 | 2011-06-27 | Single-cylinder direct-injection-type water cooled diesel engine with 125mm cylinder diameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202117784U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787936A (en) * | 2012-06-15 | 2012-11-21 | 东风朝阳朝柴动力有限公司 | Low-swirl-rate spiral air inlet passage of diesel |
| CN109268165A (en) * | 2018-07-24 | 2019-01-25 | 哈尔滨工程大学 | Stratified combustion method for organizing in a kind of Cylinder of Natural Gas Engine |
-
2011
- 2011-06-27 CN CN2011202183263U patent/CN202117784U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787936A (en) * | 2012-06-15 | 2012-11-21 | 东风朝阳朝柴动力有限公司 | Low-swirl-rate spiral air inlet passage of diesel |
| CN109268165A (en) * | 2018-07-24 | 2019-01-25 | 哈尔滨工程大学 | Stratified combustion method for organizing in a kind of Cylinder of Natural Gas 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: 20120118 Termination date: 20160627 |