CN202047919U - Automatic decompressor for multi-cylinder combustion engine - Google Patents
Automatic decompressor for multi-cylinder combustion engine Download PDFInfo
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- CN202047919U CN202047919U CN2011201534934U CN201120153493U CN202047919U CN 202047919 U CN202047919 U CN 202047919U CN 2011201534934 U CN2011201534934 U CN 2011201534934U CN 201120153493 U CN201120153493 U CN 201120153493U CN 202047919 U CN202047919 U CN 202047919U
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- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The utility model discloses an automatic decompressor for a multi-cylinder combustion engine, relating to the technical field of combustion engines. An electro magnet corresponding to each valve rocker is arranged on a valve cover; the connection of a electro magnet circuit is controlled by an ignition switch, the disconnection of the electro magnet circuit is controlled by a time-delay relay, the electron magnet and an electromagnetic switch circuit of a starter are connected simultaneously, and the disconnection of the electro magnet circuit is earlier than the disconnection of the starter circuit, so that under the state without compression resistance, the starting resistance of the multi-cylinder combustion engine is reduced greatly, therefore, the failure rates of the starter, a starting line and a storage battery are reduced greatly.
Description
Technical field
Multi-cylinder engine automatic pressure-reducing device of the present invention relates to the engine starting technical field.
Background technique
There are surface friction drag, inertial resistance, resistance to compression pression during engine starting, wherein main is resistance to compression pression, for the internal-combustion engine of taking hand primer, people are in order to reduce the starting resistance of internal-combustion engine, improve starting performance, designed by decompression shaft, relief cam, the manual decompression starting device that component such as decompression handle are formed when starting, is pulled decompression handle by manpower, relief cam is opened valve, make in the cylinder barrel not have pressurized gas, eliminated resistance to compression pression, thereby be beneficial to the starting of internal-combustion engine.Single cylinder diesel all is provided with decompressor at present, but multi-cylinder engine adopts this kind decompressor, needs manual strength very big, is awkward, and existing multi-cylinder engine all is to adopt the electricity starting and do not have the decompression starting device is arranged.
At present, single cylinder diesel existing nearly 50% adopts the electricity starting, resistance when starting in order to reduce, adopt the single cylinder diesel of electricity starting that manual decompressor still is set, the normal running of this electricity starting should be to pull decompressor by hand earlier valve is opened, again by ignition switch conducting starter circuit capable, by starter motor starting diesel engine, but reality is, people are the inoperation decompressor nearly all, but directly use the starter motor cranking internal combustion engine, like this, big at starting resistance, start under the big situation of starting current, cause the starter motor rate of fault very high, be head it off, Chinese patent application 200410014537.X, Chinese patent application 200910221357.1 has proposed no longer to be operated by the people the automatic decompression starting device of decompressor, utilization is by decompression shaft, relief cam, the manual decompression starting device that component such as decompression handle are formed, spur decompression handle with electromagnet, above patent can be applied to single cylinder diesel, be applied to just existing problems of multi-cylinder engine, problem is that the pressure of each valve spring adds together, and its external force that needs is at the 40-70 kilogram, such electromagnet volume is big, no mounting point, the easily outside oil impregnate in the installation position of decompression shaft influences whole cleaning in addition.Existing multi-cylinder engine does not all have starting decompressor is arranged.
Summary of the invention
In order to solve the multi-cylinder engine starting difficulty, reduce the starter motor fault, and reliability also can be guaranteed under cost of the end, the present invention proposes a kind of multi-cylinder engine automatic pressure-reducing device, mainly by electromagnet, time delay relay, ignition switch, valve cap, valve rocker, valve, starter relay is formed, it is characterized in that: the electromagnet corresponding to each valve rocker is installed on the valve cap, the conducting of solenoid circuit is controlled by ignition switch, the disconnection of solenoid circuit is controlled by time delay relay, the conducting simultaneously of electromagnet and starter relay circuit, the disconnection of solenoid circuit is prior to the disconnection of starter circuit capable.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
Embodiment
Cylinder head 1 among the figure, valve 2, valve cap 3, valve rocker 4, starter relay lead 8 is the original component of internal-combustion engine, electromagnet 6 is installed in and makes the moving iron core 5 of electromagnet corresponding to valve rocker 4 on the valve cap 3, time delay relay 7 is installed on the circuit between electromagnet 6 circuit and the ignition switch 9, ignition switch 9 is with the circuit turn-on of electromagnet 6 with starter relay lead 8 during cranking internal combustion engine, and the moving iron core 5 of electromagnet presses valve rocker 4 with pressure valve 2 is opened, and internal-combustion engine starts under no resistance to compression pression state, 1-2 is after second, internal combustion engine flywheel reaches starting speed, and under time delay relay 7 effects, electromagnet 6 circuit disconnect, electromagnet moves iron core 5 returns, valve-closing behind the engine starting, disconnects ignition switch 9 circuit.
The moving iron core 5 of electromagnet also can pulling force pulling valve rocker 4 be opened valve 2 among the present invention.
Owing to taked above technical measures, multi-cylinder engine is under no resistance to compression pression state, and starting resistance greatly reduces, and starter motor, trigger circuit, storage battery rate of fault greatly reduce.
Claims (2)
1. multi-cylinder engine automatic pressure-reducing device, mainly form by electromagnet, time delay relay, ignition switch, valve cap, valve rocker, valve, starter relay, it is characterized in that: the electromagnet corresponding to each valve rocker is installed on the valve cap, the conducting of solenoid circuit is controlled by ignition switch, the disconnection of solenoid circuit is controlled by time delay relay, the conducting simultaneously of electromagnet and starter relay circuit, the disconnection of solenoid circuit is prior to the disconnection of starter circuit capable.
2. a kind of multi-cylinder engine automatic pressure-reducing device according to claim 1 is characterized in that: the moving iron core of electromagnet is opened valve with pulling force pulling valve rocker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201534934U CN202047919U (en) | 2011-05-06 | 2011-05-06 | Automatic decompressor for multi-cylinder combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201534934U CN202047919U (en) | 2011-05-06 | 2011-05-06 | Automatic decompressor for multi-cylinder combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202047919U true CN202047919U (en) | 2011-11-23 |
Family
ID=44988230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201534934U Expired - Fee Related CN202047919U (en) | 2011-05-06 | 2011-05-06 | Automatic decompressor for multi-cylinder combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202047919U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261274A (en) * | 2011-05-06 | 2011-11-30 | 牛刚学 | Automatic pressure reduction device for multi-cylinder internal combustion engine |
| CN103742223A (en) * | 2013-05-31 | 2014-04-23 | 东风汽车电气有限公司 | Pressure-reducing starting system of multi-cylinder diesel engine |
-
2011
- 2011-05-06 CN CN2011201534934U patent/CN202047919U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261274A (en) * | 2011-05-06 | 2011-11-30 | 牛刚学 | Automatic pressure reduction device for multi-cylinder internal combustion engine |
| CN103742223A (en) * | 2013-05-31 | 2014-04-23 | 东风汽车电气有限公司 | Pressure-reducing starting system of multi-cylinder diesel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20140506 |