CN103422971A - Small two-stroke gasoline engine - Google Patents
Small two-stroke gasoline engine Download PDFInfo
- Publication number
- CN103422971A CN103422971A CN2012101481071A CN201210148107A CN103422971A CN 103422971 A CN103422971 A CN 103422971A CN 2012101481071 A CN2012101481071 A CN 2012101481071A CN 201210148107 A CN201210148107 A CN 201210148107A CN 103422971 A CN103422971 A CN 103422971A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- piston
- small
- cylinder body
- stroke gasoline
- 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.)
- Pending
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
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a small two-stroke gasoline engine comprising a cylinder, a crank case, a piston, a piston pin and a crankshaft connecting rod system. The piston is connected with the crankshaft connecting rod system through the piston pin. A scavenging duct is arranged between the cylinder and the crank case, and the scavenging duct is provided with barrier layers with a plurality of vent holes are arranged at the junction of the cylinder and the crank case. According to the structure, sectional area of the scavenging duct can be reduced at the junction of the crank case and the cylinder. When the small two-stroke gasoline engine is used for scavenging, airflow via the vent holes are accelerated to enter the scavenging duct of the cylinder, so that the gas scavenged into the cylinder forms high-speed turning eddy current, the gas is fully mixed and burnt, noxious gas contained in the waste gas exhausted from the cylinder is reduced, and pollution to environment by the discharged waste gas is reduced.
Description
Technical field
The present invention relates to a kind of technology of gasoline engine field, be specifically related to a kind of small two stroke gasoline.
Background technique
In the prior art, small two stroke gasoline comprises cylinder body, crankcase, piston, wrist pin and crankshaft & connecting.Piston is connected with crankshaft & connecting by wrist pin.When work, crankshaft rotating one circle, piston up-down respectively once, completes a work cycle.
Small two stroke gasoline does not have special distribution device, its ventilation is mainly that the scavenging by the scavenging air belt of cylinder body has been used for, reasonably the scavenging air belt structure can be more abundant to the utilization of the impulse inertia of air-flow, can make air inlet more abundant, makes the discharge of waste gas more thorough.Yet the scavenging air belt of the small two-stroke gasoline of prior art is mostly straight-through type.In the course of the work, the scavenge flow flow velocity of straight-through type scavenging air belt is slow, and the gas swept mixes inhomogeneous, causes burning insufficient, and in Exhaust Gas, waste gas content exceeds standard, to environment.
Summary of the invention
The deficiency that the present invention exists in order to overcome prior art, provide the little small two stroke gasoline of waste gas environmental pollution that a kind of burning is more abundant, discharge.
The present invention is achieved by the following technical solutions: a kind of small two stroke gasoline, comprise cylinder body, crankcase, piston, wrist pin and crankshaft & connecting, piston is connected with crankshaft & connecting by wrist pin, be provided with scavenging air belt between cylinder body and crankcase, scavenging air belt is provided with carrier ring at the intersection of cylinder body and crankcase, and this carrier ring is provided with a plurality of ventilative through holes.
The invention has the beneficial effects as follows: in the present invention, scavenging air belt is provided with carrier ring at the intersection of cylinder body and crankcase, and carrier ring is provided with a plurality of ventilative through holes, and this structure can reduce at the intersection of crankcase and cylinder body the section area of scavenging air belt.When the small two stroke gasoline scavenging, air-flow accelerates to enter in the scavenging air belt of cylinder body after ventilative through hole, the gas that makes to sweep in cylinder body forms the high-speed turnover eddy current, the gas that sweeps cylinder is fully mixed, after entering cylinder body, its burning is more abundant, reduce the harmful gas contained in the waste gas of cylinder body discharge, reduced the pollution of the waste gas of discharge to environment.
The accompanying drawing explanation
Fig. 1 is cross-sectional view of the present invention.
In the drawings: the 1-crankcase; The 2-crankshaft & connecting; The 3-cylinder body; The 4-piston; The 5-wrist pin; The 6-bearing; The 7-oil sealing; The 8-scavenging air belt; The 9-carrier ring; The 10-through hole of breathing freely.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
As shown in Figure 1, a kind of small two stroke gasoline, comprise cylinder body 3, crankcase 1, piston 4, wrist pin 5 and crankshaft & connecting 2, piston 4 is connected with crankshaft & connecting 2 by wrist pin 5, be provided with scavenging air belt 8 between cylinder body 3 and crankcase 1, scavenging air belt 8 is provided with carrier ring 9 at cylinder body 3 and the intersection of crankcase 1, and carrier ring 9 is provided with a plurality of ventilative through holes 10.
As shown in Figure 1, the bent axle of crankshaft & connecting 2 is installed in crankcase 1 by bearing 6, between bent axle and crankcase 1, arranges by oil sealing 7.
During work, when piston 4 comes downwards to the underpart of scavenging air belt 8, due to the air pressure pressure of the air pressure pressure in the crankcase 1 of the below of piston 4 higher than piston 4 tops, mixed gas in crankcase 1 enters in the scavenging air belt 8 of cylinder body 3 by the ventilative through hole 10 of carrier ring 9, because the aperture of ventilative through hole 10 is less, during the ventilative through hole 10 of mixed airflow process, speed is accelerated, rear its of scavenging air belt 8 that enters cylinder body 3 forms high-speed turnover air-flow, mix more even, enter cylinder body 3 after-combustions more abundant, the interior harmful gas of the waste gas that cylinder body 3 is discharged reduces, reduced the pollution to environment.
Finally should be noted that; above content is only in order to illustrate technological scheme of the present invention; but not limiting the scope of the invention; the simple modification that those of ordinary skill in the art carries out technological scheme of the present invention or be equal to replacement, all do not break away from essence and the scope of technical solution of the present invention.
Claims (1)
1. a small two stroke gasoline, comprise cylinder body, crankcase, piston, wrist pin and crankshaft & connecting, piston is connected with crankshaft & connecting by wrist pin, be provided with scavenging air belt between cylinder body and crankcase, it is characterized in that: described scavenging air belt is provided with carrier ring at the intersection of described cylinder body and described crankcase, and this carrier ring is provided with a plurality of ventilative through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101481071A CN103422971A (en) | 2012-05-14 | 2012-05-14 | Small two-stroke gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101481071A CN103422971A (en) | 2012-05-14 | 2012-05-14 | Small two-stroke gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103422971A true CN103422971A (en) | 2013-12-04 |
Family
ID=49648269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101481071A Pending CN103422971A (en) | 2012-05-14 | 2012-05-14 | Small two-stroke gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103422971A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351729A (en) * | 2016-09-05 | 2017-01-25 | 宁波大叶园林设备有限公司 | Two-stroke engine for performing turbulence scavenging through right bent axle tank body with multi-irregularly-shaped partition |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002227652A (en) * | 2001-02-05 | 2002-08-14 | Kioritz Corp | Two cycle internal combustion engine |
| CN200952421Y (en) * | 2006-09-13 | 2007-09-26 | 山东华盛农业药械股份有限公司 | Two-stroke petrol engine |
| CN201125778Y (en) * | 2007-12-18 | 2008-10-01 | 天津内燃机研究所 | Layered scavenging two cycle engine |
| CN101463753A (en) * | 2008-11-28 | 2009-06-24 | 山东华盛农业药械股份有限公司 | Low-discharge two-stroke gasoline engine |
| CN201306207Y (en) * | 2008-11-28 | 2009-09-09 | 山东华盛农业药械股份有限公司 | Low discharge two-stroke gasoline engine |
-
2012
- 2012-05-14 CN CN2012101481071A patent/CN103422971A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002227652A (en) * | 2001-02-05 | 2002-08-14 | Kioritz Corp | Two cycle internal combustion engine |
| CN200952421Y (en) * | 2006-09-13 | 2007-09-26 | 山东华盛农业药械股份有限公司 | Two-stroke petrol engine |
| CN201125778Y (en) * | 2007-12-18 | 2008-10-01 | 天津内燃机研究所 | Layered scavenging two cycle engine |
| CN101463753A (en) * | 2008-11-28 | 2009-06-24 | 山东华盛农业药械股份有限公司 | Low-discharge two-stroke gasoline engine |
| CN201306207Y (en) * | 2008-11-28 | 2009-09-09 | 山东华盛农业药械股份有限公司 | Low discharge two-stroke gasoline engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351729A (en) * | 2016-09-05 | 2017-01-25 | 宁波大叶园林设备有限公司 | Two-stroke engine for performing turbulence scavenging through right bent axle tank body with multi-irregularly-shaped partition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202125377U (en) | EGR (Exhaust Gas Recircualtion) system of diesel engine | |
| CN102322369A (en) | Crank case ventilation structure of supercharged engine | |
| CN201560858U (en) | Engine piston | |
| CN204646361U (en) | A kind of engine crankshaft ventilation system | |
| CN201963432U (en) | Air suction device and diesel engine | |
| CN201953442U (en) | Oil-gas separation structure of engine cylinder cover | |
| CN103422971A (en) | Small two-stroke gasoline engine | |
| CN103790663B (en) | Integrated camshaft | |
| CN205225372U (en) | Supercharged diesel engine crankcase ventilation system | |
| CN102808699A (en) | Disconnecting and connecting shifter for two gas circuits | |
| CN203285571U (en) | Automobile power assist device capable of improving combustion efficiency of engine | |
| CN105179116A (en) | Cooling device with external circulation system | |
| CN210599209U (en) | Gasoline engine box and gasoline engine thereof | |
| CN103452662A (en) | Environment-friendly energy-saving two-stroke opposed engine | |
| CN210919187U (en) | Novel engine oil-gas rotary separation device | |
| CN102128110A (en) | Air inlet device and diesel engine | |
| CN204200406U (en) | The gas exhaust manifold of six cylinder engine egr system | |
| CN203640804U (en) | Intake manifold high in circulating gas combustion efficiency | |
| CN203962232U (en) | The air inlet duct part of improvement | |
| CN202756124U (en) | Up-and-down moving device of moving body | |
| CN102392760A (en) | Carburetor of two-stroke layered scavenging engine | |
| CN205669444U (en) | A kind of Gravity Separation formula low pressure EGR water trap | |
| CN201581982U (en) | Air bearing of turbocharger | |
| CN201284680Y (en) | Vehicle crankcase ventilation apparatus | |
| CN203452938U (en) | Vaporizer type engine with oil saving device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131204 |