CN103790690A - Gasoline engine - Google Patents
Gasoline engine Download PDFInfo
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- CN103790690A CN103790690A CN201410059826.5A CN201410059826A CN103790690A CN 103790690 A CN103790690 A CN 103790690A CN 201410059826 A CN201410059826 A CN 201410059826A CN 103790690 A CN103790690 A CN 103790690A
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- Prior art keywords
- air belt
- scavenging air
- scavenging
- port
- gas
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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
Abstract
The invention discloses a gasoline engine and belongs to the field of piston internal combustion engines. The gasoline engine comprises an air cylinder body provided with a cylinder cavity and a crankshaft box provided with a crankshaft chamber. The air cylinder body is located above the crankshaft box and the inner wall of the air cylinder body is provided with a gas inlet and a gas exhaust hole. A sealed scavenging flue group is further arranged. The scavenging flue group is used for communicating the cylinder cavity with the crankshaft chamber. The scavenging flue group comprises the first scavenging flue and the second scavenging flue. The first scavenging flue and the second scavenging flue form a first scavenging port and a second scavenging port in the inner wall of the air cylinder body respectively. The first scavenging flue and the second scavenging flue form a first gas flue port and a second gas flue port in the inner wall of the crankshaft box respectively The first scavenging port is closer to the gas exhaust hole than the second scavenging port. The second gas flue port is located in the bottom of the crankshaft box. The first gas flue port is higher than the second gas flue port. Thin combination gas and dense combination gas are separated, the thin combination gas is used for expelling the waste gas after combustion out through the gas exhaust hole, the fuel losses and toxic substances in tail gas are reduced and the thermal efficiency is improved by 20% to 30%.
Description
Technical field
The present invention relates to internal-combustion piston engine field, in particular to a kind of petrol engine.
Background technique
The working principle of common two stroke petrol engine is as follows now: piston stroking upward, and exhaust port and scavenging port are closed, and start the mixed gas in compression cylinder; Piston stroking upward to inlet hole is opened, and incoming mixture sucks crankcase; In the time that piston is about to arrive top dead center, plug ignition burning; Because plug ignition is lighted after mixed gas, promote descent of piston acting; Because piston is descending, the mixed gas in crankcase is compressed, and now the check valve sheet before inlet hole is closed automatically, and the gas in crankcase is by precompression; In the time that piston is about to arrive lower dead center, exhaust port is opened, and starts exhaust, and the precompressed mixed gas in crankcase enters cylinder through scavenging port simultaneously, and waste gas is discharged from exhaust port, completes scavenging process.
Utilize like this waste gas after the fresh mixed gas without burning burns cylinder combustion to expel, just cause mixed gas denseer in this mixed gas also together to discharge with waste gas without burning, not only fuel loss is larger, and harmful gas content in emission is higher.
Summary of the invention
The object of the present invention is to provide a kind of petrol engine, to solve existing two stroke petrol engine owing to utilizing the waste gas after fresh mixed gas burns cylinder combustion to extrude, caused denseer mixed gas also together to discharge with waste gas, the problem that fuel loss is larger.
The technical solution used in the present invention is: a kind of petrol engine, comprise the cylinder block with cylinder chamber and the crankcase with crankshaft room, described cylinder block is positioned at the top of described crankcase, the inwall of described cylinder block is provided with inlet hole, exhaust port, also be provided with enclosed scavenging air belt group, described scavenging air belt group is communicated with described cylinder chamber with described crankshaft room, described scavenging air belt group comprises the first scavenging air belt and the second scavenging air belt, described the first scavenging air belt and described the second scavenging air belt form respectively the first scavenging port on the inwall of described cylinder block, the second scavenging port, described the first scavenging air belt and described the second scavenging air belt form respectively the first gas port on the inwall of described crankcase, the second gas port, described the first scavenging port is with respect to the more close described exhaust port of described the second scavenging port, described the second gas port is positioned at the bottom of described crankcase, described the first gas port is higher than described the second gas port.
Scavenging air belt group is communicated with cylinder chamber with crankshaft room, a scavenging air belt group part is positioned at cylinder block, and a part is positioned at crankcase.Cylinder chamber is positioned at the firing chamber on cylinder block inner carrier top, and crankshaft room is positioned at the crankcase inner space of piston bottom, by moving down of piston, the mixed gas in crankshaft room is entered to cylinder chamber by the extruding of scavenging air belt group.Petrol engine in the running, mixed gas in crankcase is along with the sense of rotation rotational flow of bent axle, thereby the liquid fuel of a part of atomization in crankcase centrifugal do or the effect of gravity under, drop is attached on the inwall of crankcase, the final wall flow that forms, wall flow flows to the bottom of crankcase along the inwall of crankcase, focus on the position of the second gas port, the mixed gas that so under high pressure enters the second scavenging air belt from the second gas port is denseer mixed gas, the drop that contains a large amount of wall flow surfaces; The mixed gas that enters the first scavenging air belt from being positioned at the first gas port of eminence is rarer mixed gas, thereby forms mixed platform gas dense, rare separation, makes dense, weak mixture enter cylinder chamber by the second separate scavenging air belt, the first scavenging air belt respectively.The rich mixture entering from the second scavenging port is trapped near the piston-top surface of exhaust port offside, cover rich mixture from the weak mixture entering in cylinder chamber near the first scavenging port of exhaust port, and weak mixture is expelled the waste gas after burning near being positioned at exhaust port from exhaust port, realize stratiform scavenging, greatly reduce the escape of rich mixture, reduce the content of harmful components in fuel loss and tail gas, reached reduction oil consumption, improved the object of discharge.Can also, by the appropriate design of the shape to the first gas port or the second gas port, better separate dense, weak mixture.
Further, on the inwall of described crankcase, be provided with groove, described groove is positioned at the top of described the first gas port, and the notch of described groove is tilted to the direction of described crankcase by the direction of described cylinder block, and the minimum point of the notch of described groove departs from described the first gas port.Such groove both can collect wall flow, can prevent again wall flow that the first gas port top flows down from flowing into the first gas port and cause increasing the concentration of the weak mixture in the first scavenging air belt, the wall flow that the inwall of the crankcase of the first gas port top is flowed down collects by groove, and then the minimum point of passing through the notch of groove flows out groove, flow to the bottom of crankcase, it is the position that wall flow all focuses on the second gas port, thereby further strengthen dense, the concentration difference of rare mixed platform gas, better separate dense, weak mixture, reduce further the escape of rich mixture.
Further, described scavenging air belt group is two groups, and described in two groups, scavenging air belt group is symmetrically set.Make to present good scavenging distribution character in cylinder block, better guarantee the performance of complete machine.
Further, the described scavenging air belt group being positioned in described cylinder block is cylinder body scavenging air belt group, be positioned at described the first scavenging air belt in described cylinder block, described the second scavenging air belt is respectively the first cylinder body scavenging air belt, the second cylinder body scavenging air belt, described cylinder body scavenging air belt group is provided with partition wall, described the first cylinder body scavenging air belt and described the second cylinder body scavenging air belt are separated by described partition wall, the outer wall of described cylinder block is provided with the opening communicating with described cylinder body scavenging air belt group, and described opening is provided with cylinder end caps.Simple in structure, practical, compared with the structure of existing enclosed scavenging air belt, reduce structure complexity and moulding difficulty.
Further, the described scavenging air belt group being positioned on described crankcase is casing scavenging air belt group, be positioned at described the first scavenging air belt on described crankcase, described the second scavenging air belt is respectively the first casing scavenging air belt, the second casing scavenging air belt, described the first casing scavenging air belt is included in the first groove of offering on described crankcase and the first housing plate that seals described the first groove, and described the second casing scavenging air belt is included in the second groove of offering on described crankcase and the second housing plate that seals described the second groove.Make, on the groove and end cap of casing scavenging air belt composing type on crankcase, to realize the sealing of scavenging air belt group, can greatly reduce technology difficulty.
The invention has the beneficial effects as follows, comprise the scavenging air belt group of two scavenging air belts by setting, make the second gas port be positioned at the bottom of crankcase, the first gas port is higher than the second gas port, thereby rare in separation crankcase, rich mixture, and respectively by separately independently scavenging port flow in cylinder chamber, the second scavenging air belt near air inlet one side for rich mixture, the first scavenging air belt near exhaust one side for weak mixture, weak mixture is expelled the waste gas after burning from exhaust port, thereby realize stratiform scavenging, greatly reduce the escape of rich mixture, reduce the content of harmful components in fuel loss and tail gas, reach reduction oil consumption, improve the object of discharge.Not only can not increase cost, and due to the raising of charging efficiency, make increased power, the thermal efficiency has improved 20%～30%, has improved economic performance.
Accompanying drawing explanation
Fig. 1 is the sectional view of the petrol engine that provides of first embodiment of the invention;
Fig. 2 is the schematic diagram of the scavenging air belt group of the petrol engine that provides of first embodiment of the invention;
Fig. 3 is the overall schematic of the petrol engine that provides of second embodiment of the invention;
Fig. 4 is the sectional view of the petrol engine that provides of second embodiment of the invention;
Fig. 5 is the schematic diagram of the scavenging air belt group of the petrol engine that provides of second embodiment of the invention.
Embodiment
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
Fig. 1, Fig. 2 shows the petrol engine that first embodiment of the invention provides, comprise the cylinder block 101 with cylinder chamber and the crankcase 102 with crankshaft room, cylinder block 101 is positioned at the top of crankcase 102, the inwall of cylinder block 101 is provided with inlet hole 103, exhaust port 104, also be provided with enclosed scavenging air belt group, scavenging air belt group is communicated with cylinder chamber with crankshaft room, scavenging air belt group comprises the first scavenging air belt 111 and the second scavenging air belt 121, the first scavenging air belt 111 and the second scavenging air belt 121 form respectively the first scavenging port 112 on the inwall of cylinder block 101, the second scavenging port 122, the first scavenging air belt 111 and the second scavenging air belt 121 form respectively the first gas port 113 on the inwall of crankcase 102, the second gas port 123, the first scavenging port 112 is with respect to the more close exhaust port 104 of the second scavenging port 122, the second gas port 123 is positioned at the bottom of crankcase 102, the first gas port 113 is higher than the second gas port 123.
Petrol engine in the running, mixed gas in crankcase 102 is along with the sense of rotation rotational flow of bent axle, thereby the liquid fuel of crankcase 102 interior a part of atomizations centrifugal do or the effect of gravity under, drop is attached on the inwall of crankcase 102, the final wall flow that forms, wall flow flows to the bottom of crankcase 102 along the inwall of crankcase, focus on the position of the second gas port 123, the mixed gas that so under high pressure enters the second scavenging air belt 121 from the second gas port 123 is denseer mixed gas, the drop that contains a large amount of wall flow surfaces; The mixed gas that enters the first scavenging air belt 111 from being positioned at the first gas port 113 of eminence is rarer mixed gas, thereby form mixed platform gas dense, rare separation, make dense, weak mixture enter cylinder chamber by separate the second scavenging air belt 121, the first scavenging air belt 111 respectively.
The rich mixture entering from the second scavenging port 122 is trapped near the piston-top surface of exhaust port 104 offsides, cover rich mixture from the weak mixture entering in cylinder chamber near the first scavenging port 112 of exhaust port 104, and weak mixture is expelled the waste gas after burning near being positioned at exhaust port 104 from exhaust port 104, realize stratiform scavenging, greatly reduce the escape of rich mixture, reduce the content of harmful components in fuel loss and tail gas, reached reduction oil consumption, improved the object of discharge.
Fig. 3 to Fig. 5 shows the petrol engine that second embodiment of the invention provides, comprise the cylinder block 101 with cylinder chamber and the crankcase 102 with crankshaft room, cylinder block 101 is positioned at the top of crankcase 102, the inwall of cylinder block 101 is provided with inlet hole 103, exhaust port 104, also be provided with enclosed scavenging air belt group, scavenging air belt group is communicated with cylinder chamber with crankshaft room, scavenging air belt group comprises the first scavenging air belt 111 and the second scavenging air belt 121, the first scavenging air belt 111 and the second scavenging air belt 121 form respectively the first scavenging port 112 on the inwall of cylinder block 101, the second scavenging port 122, the first scavenging air belt 111 and the second scavenging air belt 121 form respectively the first gas port 113 on the inwall of crankcase 102, the second gas port 123, the first scavenging port 112 is with respect to the more close exhaust port 104 of the second scavenging port 122, the second gas port 123 is positioned at the bottom of crankcase 102, the first gas port 113 is higher than the second gas port 123.
In the present embodiment, on the inwall of crankcase 102, be provided with groove 105, groove 105 is positioned at the top of the first gas port 113, and the notch of groove 105 is tilted to the direction of crankcase 102 by the direction of cylinder block 101, and the minimum point of the notch of groove 105 departs from the first gas port 113.The scavenging air belt group being positioned in cylinder block 101 is cylinder body scavenging air belt group, the first scavenging air belt 111, the second scavenging air belt 121 that are positioned in cylinder block 101 are respectively the first cylinder body scavenging air belt, the second cylinder body scavenging air belt, cylinder body scavenging air belt group is provided with partition wall 106, the first cylinder body scavenging air belt and the second cylinder body scavenging air belt are separated by partition wall 106, the outer wall of cylinder block 101 is provided with the opening 131 communicating with cylinder body scavenging air belt group, and opening 131 places are provided with cylinder end caps 132.The scavenging air belt group being positioned on crankcase 102 is casing scavenging air belt group, the first scavenging air belt 111, the second scavenging air belt 121 that are positioned on crankcase 102 are respectively the first casing scavenging air belt, the second casing scavenging air belt, the first casing scavenging air belt is included in the first groove 133 of offering on crankcase 102 and the first housing plate 134, the second casing scavenging air belts that seal the first groove 133 is included in the second groove 135 of offering on crankcase and the second housing plate 136 that seals the second groove 135.The lower end of the first groove 133, the second groove 135 communicates with the first gas port 113, the second gas port 123 respectively.The first groove 133 and the second groove 135 are all circular-arc, are positioned at the both sides of the crankshaft hole of crankcase 102, form air flue, take full advantage of the housing structure of crankcase 102.
In order to make to present good scavenging distribution character in cylinder block 101, better guarantee the performance of complete machine, scavenging air belt group is two groups, and two groups of scavenging air belt groups are symmetrically set, thus, the first cylinder body scavenging air belt, the second cylinder body scavenging air belt and the first casing scavenging air belt, the second casing scavenging air belt is two respectively, and corresponding at the two ends of cylinder block 101 and the two ends of crankcase 102 be symmetrical arranged, be that opening 131 and corresponding cylinder end caps 132 are two, be positioned at the two ends of cylinder block, the first groove 133 and the second groove 135 and the first housing plate 134, the second housing plate 136 is two respectively, be positioned at the two ends of crankcase 102, it is the crankshaft hole place at crankcase 102 two ends.The structure of scavenging air belt group is simpler like this, practical, compared with the structure of existing enclosed scavenging air belt, structure complexity and moulding difficulty are reduced, on the groove and end cap of casing scavenging air belt composing type on crankcase 102, realize the sealing of scavenging air belt group, greatly reduce technology difficulty.
In the present invention, casing scavenging air belt group is not limited to be molded on the groove and end cap on crankcase, can also or be arranged on the modes such as the inside of crankcase by external tracheae and realize; Equally, also be not limited to collect wall flow by groove being set above the first gas port, prevent wall flow that the first gas port top flows down from flowing into the first gas port and caused reducing the concentration difference of dense, rare mixed platform gas, can also prevent that wall flow from flowing into the first gas port by setting up boss at the first gas port or the first gas port being arranged to the modes such as other shapes.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. a petrol engine, comprise the cylinder block with cylinder chamber and the crankcase with crankshaft room, described cylinder block is positioned at the top of described crankcase, the inwall of described cylinder block is provided with inlet hole, exhaust port, it is characterized in that, also be provided with enclosed scavenging air belt group, described scavenging air belt group is communicated with described cylinder chamber with described crankshaft room, described scavenging air belt group comprises the first scavenging air belt and the second scavenging air belt, described the first scavenging air belt and described the second scavenging air belt form respectively the first scavenging port on the inwall of described cylinder block, the second scavenging port, described the first scavenging air belt and described the second scavenging air belt form respectively the first gas port on the inwall of described crankcase, the second gas port, described the first scavenging port is with respect to the more close described exhaust port of described the second scavenging port, described the second gas port is positioned at the bottom of described crankcase, described the first gas port is higher than described the second gas port.
2. petrol engine according to claim 1, it is characterized in that, on the inwall of described crankcase, be provided with groove, described groove is positioned at the top of described the first gas port, the notch of described groove is tilted to the direction of described crankcase by the direction of described cylinder block, and the minimum point of the notch of described groove departs from described the first gas port.
3. petrol engine according to claim 1, is characterized in that, described scavenging air belt group is two groups, and described in two groups, scavenging air belt group is symmetrically set.
4. petrol engine according to claim 1, it is characterized in that, the described scavenging air belt group being positioned in described cylinder block is cylinder body scavenging air belt group, be positioned at described the first scavenging air belt in described cylinder block, described the second scavenging air belt is respectively the first cylinder body scavenging air belt, the second cylinder body scavenging air belt, described cylinder body scavenging air belt group is provided with partition wall, described the first cylinder body scavenging air belt and described the second cylinder body scavenging air belt are separated by described partition wall, the outer wall of described cylinder block is provided with the opening communicating with described cylinder body scavenging air belt group, and described opening is provided with cylinder end caps.
5. petrol engine according to claim 1, it is characterized in that, the described scavenging air belt group being positioned on described crankcase is casing scavenging air belt group, be positioned at described the first scavenging air belt on described crankcase, described the second scavenging air belt is respectively the first casing scavenging air belt, the second casing scavenging air belt, described the first casing scavenging air belt is included in the first groove of offering on described crankcase and the first housing plate that seals described the first groove, and described the second casing scavenging air belt is included in the second groove of offering on described crankcase and the second housing plate that seals described the second groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410059826.5A CN103790690B (en) | 2014-02-21 | 2014-02-21 | A kind of gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410059826.5A CN103790690B (en) | 2014-02-21 | 2014-02-21 | A kind of gasoline engine |
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| Publication Number | Publication Date |
|---|---|
| CN103790690A true CN103790690A (en) | 2014-05-14 |
| CN103790690B CN103790690B (en) | 2017-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410059826.5A Active CN103790690B (en) | 2014-02-21 | 2014-02-21 | A kind of gasoline engine |
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| CN (1) | CN103790690B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929797A (en) * | 2015-07-02 | 2015-09-23 | 浙江天泰机械有限公司 | Two-stroke engine cylinder and two-stroke engine |
| CN105863818A (en) * | 2016-05-25 | 2016-08-17 | 浙江三锋实业股份有限公司 | Scavenging system of two-stroke engine |
| EP3715599A1 (en) | 2019-03-25 | 2020-09-30 | Andreas Stihl AG & Co. KG | Two-stroke engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4469054A (en) * | 1983-05-19 | 1984-09-04 | Nippon Clean Engine Research Institute Co., Ltd. | Two-stroke internal-combustion engine |
| JPS59226227A (en) * | 1983-06-04 | 1984-12-19 | Nippon Clean Engine Res | Two-cycle internal-combustion engine |
| JPS60111019A (en) * | 1983-11-19 | 1985-06-17 | Nippon Clean Engine Res | Two-cycle internal-combustion engine |
| JPS61197712A (en) * | 1985-02-26 | 1986-09-02 | Nippon Clean Engine Res | 2-cycle laminar scavenging internal-combustion engine |
| CN86103240A (en) * | 1985-05-10 | 1986-11-05 | 内燃机和测量技术Avl有限公司 | The air exchanging method of reverseflow type two stroke IC engine and implement the internal-combustion engine of this method |
| CN203756313U (en) * | 2014-02-21 | 2014-08-06 | 浙江天泰机械有限公司 | Gasoline engine |
-
2014
- 2014-02-21 CN CN201410059826.5A patent/CN103790690B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4469054A (en) * | 1983-05-19 | 1984-09-04 | Nippon Clean Engine Research Institute Co., Ltd. | Two-stroke internal-combustion engine |
| JPS59226227A (en) * | 1983-06-04 | 1984-12-19 | Nippon Clean Engine Res | Two-cycle internal-combustion engine |
| JPS60111019A (en) * | 1983-11-19 | 1985-06-17 | Nippon Clean Engine Res | Two-cycle internal-combustion engine |
| JPS61197712A (en) * | 1985-02-26 | 1986-09-02 | Nippon Clean Engine Res | 2-cycle laminar scavenging internal-combustion engine |
| CN86103240A (en) * | 1985-05-10 | 1986-11-05 | 内燃机和测量技术Avl有限公司 | The air exchanging method of reverseflow type two stroke IC engine and implement the internal-combustion engine of this method |
| CN203756313U (en) * | 2014-02-21 | 2014-08-06 | 浙江天泰机械有限公司 | Gasoline engine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929797A (en) * | 2015-07-02 | 2015-09-23 | 浙江天泰机械有限公司 | Two-stroke engine cylinder and two-stroke engine |
| CN105863818A (en) * | 2016-05-25 | 2016-08-17 | 浙江三锋实业股份有限公司 | Scavenging system of two-stroke engine |
| CN105863818B (en) * | 2016-05-25 | 2018-08-28 | 浙江三锋实业股份有限公司 | A kind of scavenging system of two stroke engine |
| EP3715599A1 (en) | 2019-03-25 | 2020-09-30 | Andreas Stihl AG & Co. KG | Two-stroke engine |
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| Publication number | Publication date |
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| CN103790690B (en) | 2017-03-08 |
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