CN104314712A - Small two-stroke gas engine - Google Patents
Small two-stroke gas engine Download PDFInfo
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- CN104314712A CN104314712A CN201410443684.2A CN201410443684A CN104314712A CN 104314712 A CN104314712 A CN 104314712A CN 201410443684 A CN201410443684 A CN 201410443684A CN 104314712 A CN104314712 A CN 104314712A
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- Prior art keywords
- oil
- oil pump
- vaporizer
- cylinder
- bottle
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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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a small two-stroke gas engine which mainly comprises a crankcase, a cylinder, a vaporizer and a portable gas bottle, wherein a combustion chamber is arranged in the cylinder; the portable gas bottle is connected with the vaporizer through a gas pipe. The small two-stroke gas engine further comprises an oil lubricating system which comprises an oil bottle, an oil pump, an oil pump turbine, a crank worm, an oil supply pipe, an oil conveying pipe, an oil return pipe and a vaporizer connecting flange, wherein the oil bottle and the oil pump are mounted on the crankcase of the engine; the vaporizer connecting flange is mounted on the cylinder of the engine; the crank worm is assembled on the crank and is meshed with the oil pump turbine; the oil bottle is connected with the oil pump through the oil conveying pipe; the oil pump is connected with the vaporizer connecting flange through the oil supply pipe; the oil return pipe is arranged between the crankcase and the oil bottle. The defect that gas cannot be mixed with oil after the two-stroke gas engine adopts gas as a fuel in the prior art is overcome.
Description
Technical field
the present invention relates to a kind of internal combustion engine, especially a kind of small two-stroke gas engine.
Background technique
in fields such as graden machine, equipment for plant protection, little agricultural machinery, mostly supporting small two stroke engines.Gas engine has obvious superiority than fuel engine in discharge, use combustion gas compared with use traditional fuel, gas engine is granular material discharged almost nil, and the discharge of NOx, CO and HC also significantly reduces, so combustion gas is improving important in inhibiting in air quality.At present, a lot of country, all in the use advocating this clean energy resource, especially uses at automobile industry gas power in a large number.And also using traditional fuel now as the small two stroke gasoline that the fields such as graden machine, equipment for plant protection, little agricultural machinery are supporting.This mainly contains following two problems and determines:
one, traditional small two stroke gasoline adopts Mixed lubrication, and namely gasoline and machine oil are stored in fuel tank after mixing by a certain percentage and supply petrol engine use.Miscella enters crankcase lubrication after Carburetor atomization.And adopting combustion gas as after fuel, combustion gas and machine oil adopt traditional mode to mix.
two, small two stroke gasoline is mostly as supporting power in field such as graden machine, equipment for plant protection, little agricultural machinery, and the basic Dou Shi family of these facility uses.This just requires must be lightweight, flexibility and reliability.But be all liquefaction regardless of traditional combustion gas or the combustion gas of current automobile or be stored in steel cylinder after compressing, very heavy.
mini four-stroke gasoline engine in the market uses combustion gas as fuel after having seldom part repacking.Gaseous fuel is stored in portable domestic gas cylinder, and this gas cylinder is lightweight, and price is low, easy to use.Gas cylinder fuel is by passing through vaporizer supply engine after decompression.This gas cylinder solves fuel storage problem, and four stroke engine generally adopts fuel and lubricates the mode be separated, and lubrication does not have problems.Solve fuel supply and lubricate this two problems, Small Universal gas engine does not have great problem substantially at technical elements.Therefore have the combustion gas four of part manufacturer production to rush motor in recent years to occur in general small-size power market.But as the especially supporting home-use graden machine of minitype motivation, four-stroke gasoline engine has inborn weakness, i.e. complex structure, not easy care, especially heavier than two stroke engine a lot of with the engine weight under power.
Summary of the invention
for making up the above-mentioned defect existed in prior art, that is: four-stroke gasoline engine complex structure, not easy care, heavy, two stroke engine adopts combustion gas to adopt traditional mode to mix as combustion gas after fuel and machine oil, and the present invention aims to provide a kind of small two-stroke gas engine.
for achieving the above object, the present invention is by the following technical solutions: a kind of small two-stroke gas engine, comprises portable cylinder, fuel tube, fuel supply line, vaporizer, vaporizer adpting flange, silencing apparatus, bent axle scroll bar, oil pump turbine, transport pipe, return tube, oil pump, cylinder body, spark plug, piston, bent axle, oil bottle and crankcase; Described portable cylinder is connected by fuel tube with vaporizer, and portable cylinder is fixedly mounted on cylinder body; Described oil bottle, oil pump, oil pump turbine, bent axle scroll bar, fuel supply line, transport pipe, return tube and vaporizer adpting flange form oil lubricating system jointly; Described oil bottle and oil pump are arranged on engine crankcase; Describedization device adpting flange is arranged on engine cylinder-body; Described bent axle scroll bar is assemblied on bent axle, and is connected with a joggle with oil pump turbine; Described oil bottle is connected by transport pipe with oil pump; Described oil pump is connected by fuel supply line with vaporizer adpting flange; And between oil pump and oil bottle, be provided with return tube.
further, firing chamber is provided with in described cylinder body; And cylinder body is provided with intake duct, air outlet flue and scavenging air belt three air flues of being closed by piston in certain moment respectively.
compared with prior art, the invention has the beneficial effects as follows: this small two-stroke gas engine, utilize portable domestic gas cylinder as two-stroke motor fuel case, using combustion gas as fuel, solve the problem that the discharge of current two stroke engine is high; Adopt separation lubrication, by fuel and machine oil separated, machine oil is squeezed in vaporizer adpting flange by oil pump, there with combustion gas mixing atomization after enter crankcase lubrication; Because motor is different to the demand of lubricant oil under different operating mode, oil pump can exactly according to demand supplies lubricant oil; Separation lubrication avoids the uppity shortcoming of oil level of traditional two stroke engine Mixed lubrication; Efficiently solve two stroke engine idling Carbon Deposit Phenomenon and idling emits blue smoke phenomenon; Oil consumption and idling pollutant reduce greatly;
overall structure is simply compact, easily manufactured, practical, is easy to promote the use of.
Accompanying drawing explanation
fig. 1 is left view of the present invention;
fig. 2 is plan view of the present invention;
fig. 3 is right elevation of the present invention;
wherein: 1, portable cylinder, 2, fuel tube, 3, fuel supply line, 4, vaporizer, 5, vaporizer adpting flange, 6, silencing apparatus, 7, bent axle scroll bar, 8, oil pump turbine, 9, transport pipe, 10, return tube, 11, oil pump, 12, cylinder body, 13, spark plug, 14, piston, 15, bent axle, 16, oil bottle, 17, crankcase.
according to actual conditions: take between formula gas cylinder (1) and vaporizer (4) and maybe can increase a reduction valve.
Embodiment
below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
refer to Fig. 1 ~ 3, a kind of small two-stroke gas engine, comprises portable cylinder 1, fuel tube 2, fuel supply line 3, vaporizer 4, vaporizer adpting flange 5, silencing apparatus 6, bent axle scroll bar 7, oil pump turbine 8, transport pipe 9, return tube 10, oil pump 11, cylinder body 12, spark plug 13, piston 14, bent axle 15, oil bottle 16 and crankcase 17; Described portable cylinder 1 is connected by fuel tube 2 with vaporizer 4, and portable cylinder is fixedly mounted on cylinder body 12; Described oil bottle 16, oil pump 11, oil pump turbine 8, bent axle scroll bar 7, fuel supply line 3, transport pipe 9, return tube 10 and vaporizer adpting flange 5 be composition oil lubricating system jointly; Described oil bottle 16 and oil pump 11 are arranged on engine crankcase 17; Describedization device adpting flange 5 is arranged on engine cylinder-body 12; Described bent axle scroll bar 7 is assemblied on bent axle 15, and is connected with a joggle with oil pump turbine 8; Described oil bottle 16 is connected by transport pipe 9 with oil pump 11; Described oil pump 11 is connected by fuel supply line 3 with vaporizer adpting flange 5; And between oil pump 11 and oil bottle 16, be provided with return tube 10.
further, firing chamber is provided with in described cylinder body 12; And cylinder body 12 is provided with intake duct, air outlet flue and scavenging air belt three air flues of being closed by piston in certain moment respectively.
working principle of the present invention is:
portable gas bottle 1 provides inflammable gas, and under portable gas bottle 1 pressure itself and crankcase negative pressure, combustion gas flow into fuel tube 2 from portable gas bottle 1; Because the combustion gas being stored in portable gas bottle 1 is liquefaction, can absorb amount of heat when becoming gas, fuel gas temperature is very low, can affect the machine performance of gas engine, therefore needs to give preheating to the combustion gas of relative low temperature.Fuel tube 2 is by the radiator window before motor, and the heat that motor produces blows in fuel tube 2, completes the warm to combustion gas; Combustion gas after preheating is by vaporizer 4, and the effect of vaporizer 4 provides corresponding combustion gas according to the change of engine power and rotating speed; When combustion gas enters vaporizer adpting flange 5 after by vaporizer 4, run into the machine oil that oil pump 11 provides, machine oil inside vaporizer adpting flange 5 is impacted into tiny oil droplet by the combustion gas under the attraction of motor negative pressure with powerful impact force, and these tiny oil droplets with combustion gas mixing together, form inflammable mixture; Inflammable mixture is entered in cylinder body 12 to engine with fuel by the intake duct on cylinder body 12.
its work cycle of the present invention comprises two strokes:
first stroke: piston 14 moves up from lower dead center, after three air flues are closed simultaneously, enters the combustion gas of cylinder and the inflammable mixture of machine oil is compressed; When intake duct exposes, the inflammable mixture of combustion gas and machine oil flows into crankcase.
second stroke: when piston 14 is compressed near top dead center, the inflammable mixture of combustion gas and machine oil lighted by spark plug 13, and combustion gas expansion promotes piston 14 and moves down work done.At this moment intake duct is closed, and the inflammable mixture be enclosed in crankcase 18 is compressed; When piston is opened close to air outlet flue during lower dead center, waste gas is gone out; Scavenging air belt is opened subsequently, and the inflammable mixture of preloading rushes people's cylinder, and drive away waste gas, waste gas is discharged by silencing apparatus 6, carries out gas exchange process.
lubricating structure working principle of the present invention is:
bent axle scroll bar 7 is assemblied on bent axle 15, engage with oil pump turbine 8, bent axle 15 drives oil pump 11 to work when the engine runs, the machine oil being contained in oil bottle 16 enters vaporizer adpting flange 5 by transport pipe 9, oil pump 11, fuel supply line 3, at this, enter crankcase with combustion gas mixing atomization.Unnecessary machine oil flows into oil bottle 16 by return tube 10 again.The rotating speed of motor is different, and the rotating speed of oil pump 11 is also different, so machine oil fuel delivery is also different, thus reaches the requirement by demand supplies lubricant oil.
in embodiment one, fuel tube 2 is by the radiator window before motor, and the heat that motor produces blows in fuel tube 2, completes and makes combustion gas become the fuel of suitable engine operation to the warm of combustion gas.
to those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any reference character in claim should be considered as the claim involved by limiting.
the above; be only preferred embodiment of the present invention; not in order to limit the present invention, every above embodiment is done according to technical spirit of the present invention any trickle amendment, equivalently replace and improve, within the protection domain that all should be included in technical solution of the present invention.
Claims (2)
1.
a kind of small two-stroke gas engine, comprises portable cylinder (1), fuel tube (2), fuel supply line (3), vaporizer (4), vaporizer adpting flange (5), silencing apparatus (6), bent axle scroll bar (7), oil pump turbine (8), transport pipe (9), return tube (10), oil pump (11), cylinder body (12), spark plug (13), piston (14), bent axle (15), oil bottle (16) and crankcase (17); It is characterized in that: described portable cylinder (1) is connected by fuel tube (2) with vaporizer (4), and portable cylinder is fixedly mounted on cylinder body (12); Described oil bottle (16), oil pump (11), oil pump turbine (8), bent axle scroll bar (7), fuel supply line (3), transport pipe (9), return tube (10) and vaporizer adpting flange (5) be composition oil lubricating system jointly; Described oil bottle (16) and oil pump (11) are arranged on engine crankcase (17); Describedization device adpting flange (5) is arranged on engine cylinder-body (12); Described bent axle scroll bar (7) is assemblied on bent axle (15), and is connected with a joggle with oil pump turbine (8); Described oil bottle (16) is connected by transport pipe (9) with oil pump (11); Described oil pump (11) is connected by fuel supply line (3) with vaporizer adpting flange (5); And between oil pump (11) and oil bottle (16), be provided with return tube (10), a reduction valve between another portable cylinder (1) and vaporizer (4), can be increased.
2.
a kind of small two-stroke gas engine according to claim 1, is characterized in that: described cylinder body is provided with firing chamber in (12); And cylinder body (12) is provided with intake duct, air outlet flue and scavenging air belt three air flues of being closed by piston in certain moment respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410443684.2A CN104314712A (en) | 2014-09-03 | 2014-09-03 | Small two-stroke gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410443684.2A CN104314712A (en) | 2014-09-03 | 2014-09-03 | Small two-stroke gas engine |
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| Publication Number | Publication Date |
|---|---|
| CN104314712A true CN104314712A (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410443684.2A Pending CN104314712A (en) | 2014-09-03 | 2014-09-03 | Small two-stroke gas engine |
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| CN (1) | CN104314712A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506094A (en) * | 2017-02-28 | 2018-09-07 | 日立汽车系统(苏州）有限公司 | Gas-turbine unit |
| CN109915258A (en) * | 2019-02-01 | 2019-06-21 | 浙江派尼尔科技股份有限公司 | A kind of separation lubrication layered scavenging two-stroke brush cutter dynamic structure and working method |
| CN114233527A (en) * | 2021-11-25 | 2022-03-25 | 潍柴动力股份有限公司 | Pressure regulator pressure regulating device, precombustion chamber air supply system and air supply method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07301154A (en) * | 1994-05-06 | 1995-11-14 | Nippon Uoruburoo:Kk | Liquefied petroleum fuel supplying device for internal combustion engine |
| JPH10169459A (en) * | 1996-12-10 | 1998-06-23 | Mitsubishi Heavy Ind Ltd | Portable engine |
| CN2787840Y (en) * | 2004-12-24 | 2006-06-14 | 施任 | Two-stroke gasoline engine with built-in carburetor |
| CN202441488U (en) * | 2012-02-16 | 2012-09-19 | 临沂三禾永佳动力有限公司 | Miniature two-stroke gas engine |
| US8757121B1 (en) * | 2010-01-12 | 2014-06-24 | Walbro Engine Management, L.L.C. | Supplying supplementary fuel for engine startup |
-
2014
- 2014-09-03 CN CN201410443684.2A patent/CN104314712A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07301154A (en) * | 1994-05-06 | 1995-11-14 | Nippon Uoruburoo:Kk | Liquefied petroleum fuel supplying device for internal combustion engine |
| JPH10169459A (en) * | 1996-12-10 | 1998-06-23 | Mitsubishi Heavy Ind Ltd | Portable engine |
| CN2787840Y (en) * | 2004-12-24 | 2006-06-14 | 施任 | Two-stroke gasoline engine with built-in carburetor |
| US8757121B1 (en) * | 2010-01-12 | 2014-06-24 | Walbro Engine Management, L.L.C. | Supplying supplementary fuel for engine startup |
| CN202441488U (en) * | 2012-02-16 | 2012-09-19 | 临沂三禾永佳动力有限公司 | Miniature two-stroke gas engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506094A (en) * | 2017-02-28 | 2018-09-07 | 日立汽车系统(苏州）有限公司 | Gas-turbine unit |
| CN109915258A (en) * | 2019-02-01 | 2019-06-21 | 浙江派尼尔科技股份有限公司 | A kind of separation lubrication layered scavenging two-stroke brush cutter dynamic structure and working method |
| CN114233527A (en) * | 2021-11-25 | 2022-03-25 | 潍柴动力股份有限公司 | Pressure regulator pressure regulating device, precombustion chamber air supply system and air supply method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170125 Address after: 321000 Zhejiang Province, Jinhua City Jiangdong Industrial Zone Gold Road No. 988 Applicant after: Zhejiang Baima Industrial Co., Ltd. Address before: Songjiang District Sijing town high tech road 201601 Shanghai City No. 226 building 10 layer 1-2 Applicant before: Shanghai Shanke Garden Tools Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150128 |