CN201635889U - Oil supply system of two stroke engine - Google Patents
Oil supply system of two stroke engine Download PDFInfo
- Publication number
- CN201635889U CN201635889U CN2010201343025U CN201020134302U CN201635889U CN 201635889 U CN201635889 U CN 201635889U CN 2010201343025 U CN2010201343025 U CN 2010201343025U CN 201020134302 U CN201020134302 U CN 201020134302U CN 201635889 U CN201635889 U CN 201635889U
- Authority
- CN
- China
- Prior art keywords
- carburetor
- negative pressure
- fuel pump
- supply system
- engine
- 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
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses an oil supply system of a two stroke engine, which comprises an oil tank, a negative pressure fuel pump and a plunger type carburetor, which are communicated with one another through oil pipes, and is characterized in that the negative pressure fuel pump and the plunger type carburetor adopt a split type structure, a heat-insulating block of a carburetor is arranged at the front part of the carburetor, a vent hole is arranged on the heat-insulating block of the carburetor and is connected with the negative pressure fuel pump through a negative pressure pipe, the engine of the improved oil supply system can be more easily adjusted, and has more stable idle speed; the engine is more energy saving and environment friendly, and has better stability and reliability of the working condition; and an engine throttle can directly control the rotating speed, and throttle reacts more sensitively.
Description
Technical field
The utility model relates to a kind of oil supply system of two-cycle engine.
Background technique
Two-cycle engine on the existing market, because fuel tank is positioned at the motor bottom, oil supply system generally adopts the vacuum diaphragm carburetor.The vacuum diaphragm carburetor itself has the fuel oil self-absorption function, and oil supply system is simple in structure.The fuel delivery of vacuum diaphragm carburetor is to control automatically with the trunnion negative pressure in theory, but the rare in practice operating mode that meets this theory state.According to the repeatedly measurement in the practice experiment, when accelerator open degree strengthens rapidly, negative pressure in the trunnion still can reduce rapidly, still idling oil mass and main fuel delivery regulated before the important affair in actual the use dense point, can guarantee that just zero load and load stage are not oil-poor.Under adjusted state, engine consumption is higher, also has influence on the engine exhaust emission level.
Adopt the two-cycle engine oil supply system of vacuum diaphragm carburetor, its pore and oil channel structures are simplified inadequately, and the preparation process more complicated, cause engine stabilization poor, adjust difficulty, and cost is also higher.
Summary of the invention
Technical problem to be solved in the utility model is when fuel tank is positioned at the motor bottom, a kind of oil supply system of reliable two-cycle engine more rationally is provided, by the negative pressure type fuel pump, the fuel oil in the motor bottom sump is sent into Carburetor, motor normally starts and works.
In order to realize above-mentioned purpose, the utility model is by the following technical solutions: a kind of oil supply system of two-cycle engine, comprise fuel tank, negative pressure type fuel pump and plunger type carburetor, above-mentioned three is communicated with by oil pipe, it is characterized in that: negative pressure type fuel pump and plunger type carburetor adopt split-type structural, the Carburetor heat-insulating block is arranged on the Carburetor front portion, and the Carburetor heat-insulating block is provided with vent, and vent is connected to the negative pressure type fuel pump by the negative pressure pipe.
Because the employing of plunger type carburetor has following distinguishing feature: the motor ratio is easier to regulate, and idling is more stable; Motor is fuel-saving environmental protection relatively, and operating mode stability is better with reliability; Engine oil gate control rotating ratio is more direct, and the throttle reaction is relatively sensitiveer.
Description of drawings
Figure l is the utility model example structure schematic representation.
Embodiment
As scheme shown in the l, a kind of oil supply system of two-cycle engine, comprise fuel tank (1), negative pressure type fuel pump (2), plunger type carburetor (3), Carburetor heat-insulating block (4), oil pipe (5) and negative pressure pipe (6), described fuel tank (1), negative pressure type fuel pump (2) and plunger type carburetor (3) are communicated with by oil pipe (5); Carburetor heat-insulating block (4) is arranged on Carburetor (3) front portion; Carburetor heat-insulating block (4) is provided with vent (4.1), is connected to negative pressure type fuel pump (2) by negative pressure pipe (6).
When the hand pull starting-up two-cycle engine, produce negative pressure in the cylinder, negative pressure is provided with vent (4.1) by Carburetor heat-insulating block (4), through negative pressure pipe (6) conducting to negative pressure type fuel pump (2).The negative pressure of negative pressure type fuel pump (2) inner chamber produces suction, with fuel from fuel tank (1) negative suction formula fuel pump (2), is delivered to plunger type carburetor (3) then.
Claims (1)
1. the oil supply system of a two-cycle engine, comprise fuel tank, negative pressure type fuel pump and plunger type carburetor, above-mentioned three is communicated with by oil pipe, it is characterized in that: negative pressure type fuel pump and plunger type carburetor adopt split-type structural, the Carburetor heat-insulating block is arranged on the Carburetor front portion, the Carburetor heat-insulating block is provided with vent, and vent is connected to the negative pressure type fuel pump by the negative pressure pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201343025U CN201635889U (en) | 2010-03-18 | 2010-03-18 | Oil supply system of two stroke engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201343025U CN201635889U (en) | 2010-03-18 | 2010-03-18 | Oil supply system of two stroke engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201635889U true CN201635889U (en) | 2010-11-17 |
Family
ID=43080378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201343025U Expired - Fee Related CN201635889U (en) | 2010-03-18 | 2010-03-18 | Oil supply system of two stroke engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201635889U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867296A (en) * | 2014-03-03 | 2014-06-18 | 浙江耀锋动力科技有限公司 | Gasoline engine |
| CN114542330A (en) * | 2022-02-16 | 2022-05-27 | 福鼎市国益机车部件有限公司 | Diaphragm type carburetor and system |
-
2010
- 2010-03-18 CN CN2010201343025U patent/CN201635889U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867296A (en) * | 2014-03-03 | 2014-06-18 | 浙江耀锋动力科技有限公司 | Gasoline engine |
| CN114542330A (en) * | 2022-02-16 | 2022-05-27 | 福鼎市国益机车部件有限公司 | Diaphragm type carburetor and system |
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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 |
Granted publication date: 20101117 Termination date: 20150318 |
|
| EXPY | Termination of patent right or utility model |