CN115263637A - Ignition timing device of engine - Google Patents
Ignition timing device of engine Download PDFInfo
- Publication number
- CN115263637A CN115263637A CN202210819363.2A CN202210819363A CN115263637A CN 115263637 A CN115263637 A CN 115263637A CN 202210819363 A CN202210819363 A CN 202210819363A CN 115263637 A CN115263637 A CN 115263637A
- Authority
- CN
- China
- Prior art keywords
- positioning
- injection pump
- gear
- cam shaft
- pump gear
- 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
- 238000002347 injection Methods 0.000 claims abstract description 39
- 239000007924 injection Substances 0.000 claims abstract description 39
- 239000000446 fuel Substances 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 description 12
- 239000002283 diesel fuel Substances 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
- F02P17/02—Checking or adjusting ignition timing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
- F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
- F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
- F02B77/087—Safety, indicating, or supervising devices determining top dead centre or ignition-timing
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- High-Pressure Fuel Injection Pump Control (AREA)
Abstract
The invention relates to the technical field of diesel engines, in particular to an engine ignition timing device, which comprises cam shaft teeth, an oil injection pump gear, a tension pulley, a crankshaft gear, a driven gear and a belt, wherein the cam shaft teeth, the oil injection pump gear, the tension pulley, the crankshaft gear and the driven gear are in power transmission through the belt; the fuel injection pump gear is provided with a fuel injection pump gear positioning pin; a positioning wrench is arranged on the tensioning wheel; a cam shaft is arranged on the cam shaft teeth, and a positioning piece is arranged at one end of the cam shaft, which is far away from the cam shaft teeth; the positioning wrench, the positioning plate and the oil injection pump gear positioning pin are mutually matched. The arrangement of the oil injection pump gear positioning pin, the positioning wrench and the positioning sheet can more quickly and accurately finish the adjustment of the ignition timing of the engine; meanwhile, the device can avoid the loss of the diesel engine caused by ignition timing and save the cost.
Description
Technical Field
The invention relates to the technical field of diesel engines, in particular to an engine ignition timing device.
Background
Diesel engines are internal combustion engines fueled by diesel fuel. The diesel engine belongs to the compression ignition engine, which is often also referred to as diesel engine in the name of diesel, the main inventor. When diesel oil works, air sucked into a cylinder of the diesel engine is compressed to a high degree due to the movement of a piston, and reaches a high temperature of 500-700 ℃. Diesel engines can be classified according to different characteristics: the diesel engine is divided into a high-speed diesel engine, a medium-speed diesel engine and a low-speed diesel engine according to the rotating speed; diesel engines of direct injection type, swirl chamber type and precombustion chamber type are classified according to the type of combustion chamber; the method is divided into a supercharged diesel engine and a non-supercharged diesel engine according to the air inlet mode of an air cylinder; the gas pressure operation modes include single-acting type, double-acting type and opposed piston type diesel engines. The diesel fuel is mainly diesel oil, and is usually light diesel oil for high-speed diesel engines; light diesel oil or heavy diesel oil is used for medium and low speed diesel engines. The fuel oil is injected into the cylinder by the fuel injection pump and the fuel injector at high pressure, and the injected fuel oil is atomized and mixed with air for combustion.
Various problems can arise if the timing of the engine ignition is inaccurate, such as: the ignition early knock noise is serious, and the power is reduced; the ignition is late, the exhaust smoke is generated, the explosion is carried out, the temperature is quickly raised, the starting is difficult, the oil head is not well atomized, the engine oil is burnt, and blue smoke can be generated at low temperature.
If the ignition timing is not adjusted well or the ignition timing is not adjusted at all by feel and experience, the engine cannot be started normally if the ignition timing is not adjusted well.
In order to solve the above problems, the present invention provides an engine ignition timing apparatus.
Disclosure of Invention
An object of the present invention is to provide an engine ignition timing device that solves the problems set forth in the background art above with respect to the engine failing to start normally if the ignition timing of the engine is poorly adjusted.
In order to achieve the purpose, the invention provides the following technical scheme:
an ignition timing device of an engine comprises cam shaft teeth, an oil injection pump gear, a tension pulley, a crankshaft gear, a driven gear and a belt, wherein power transmission is carried out among the cam shaft teeth, the oil injection pump gear, the tension pulley, the crankshaft gear and the driven gear through the belt; the fuel injection pump gear is provided with a fuel injection pump gear positioning pin; a positioning wrench is arranged on the tensioning wheel; a cam shaft is arranged on the cam shaft teeth, and a positioning piece is arranged at one end of the cam shaft, which is far away from the cam shaft teeth; the positioning wrench, the positioning sheet and the oil injection pump gear positioning pin are matched with each other.
Furthermore, the positioning wrench is movably connected with the tensioning wheel.
Furthermore, the positioning plate is fixedly connected with the camshaft.
Furthermore, the oil injection pump gear positioning pin is movably connected with the oil injection pump gear positioning information.
Furthermore, the oil injection pump gear positioning pin, the positioning wrench and the positioning sheet are positioned simultaneously.
Compared with the prior art, the invention has the beneficial effects that:
the arrangement of the oil injection pump gear positioning pin, the positioning wrench and the positioning sheet can more quickly and accurately finish the adjustment of the ignition timing of the engine;
meanwhile, the device can avoid the loss of the diesel engine caused by ignition timing and save the cost.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic view of the structure of the present invention.
In the figure: 1. a cam shaft tooth; 2. an injection pump gear; 3. a tension wheel; 4. a crankshaft gear; 5. a driven gear; 6. a belt; 7. an injection pump gear locating pin; 8. positioning a wrench; 9. a camshaft; 10. and (6) a positioning sheet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides the following technical scheme:
as shown in the figure, the first and second,
an ignition timing device of an engine comprises a cam shaft gear 1, an oil injection pump gear 2, a tension pulley 3, a crankshaft gear 4, a driven gear 5 and a belt 6, wherein power transmission is carried out among the cam shaft gear 1, the oil injection pump gear 2, the tension pulley 3, the crankshaft gear 4 and the driven gear 5 through the belt 6, and the installation positions and the installation modes among the cam shaft gear 1, the oil injection pump gear 2, the tension pulley 3, the crankshaft gear 4, the driven gear 5 and the belt 6 are the prior art and are not described herein again, and specific reference is made to the detailed structure of the existing diesel engine; the fuel injection pump gear 2 is provided with a fuel injection pump gear positioning pin 7; a positioning wrench 8 is arranged on the tensioning wheel 3; a cam shaft 9 is arranged on the cam shaft teeth 1, and a positioning piece 10 is arranged at one end, far away from the cam shaft teeth 1, of the cam shaft 9; the positioning wrench 8, the positioning plate 10 and the injection pump gear positioning pin 7 are matched with each other.
Furthermore, the positioning wrench 8 is movably connected with the tensioning wheel 3, and the end of the positioning wrench 8 is provided with a shaft for being sleeved on the tensioning wheel 3 and used for rotating the tensioning wheel 3. In order to make the process of rotating the tensioning wheel 3 by the positioning wrench 8 smoother, the joint between the positioning wrench 8 and the tensioning wheel 3 may be set to be a hexagonal structure.
Furthermore, the positioning plate 10 is fixedly connected with the camshaft 9, and in order to position the camshaft 9 by using the positioning plate 10, the camshaft 9 can be positioned on the basis of the original diesel engine.
Furthermore, the positioning information of the injection pump gear positioning pin 7 and the injection pump gear 2 is movably connected.
Further, the oil injection pump gear positioning pin 7, the positioning wrench 8 and the positioning plate 10 are positioned simultaneously.
According to the structure, the specific working principle is as follows:
when the ignition of a diesel engine needs to be operated in a timing mode, the gear positioning pin 7 of the fuel injection pump, the positioning wrench 8 and the positioning piece 10 need to be positioned at the same time, the three tools mainly play a role in replacing an engine belt and a fuel injection pump of the diesel engine during maintenance, an engine valve timing system cannot be damaged, maintenance efficiency is improved, if the upper dead center of a cylinder of the engine cannot be found accurately without the tools, an engine valve opening point cannot be judged, if the three-point positioning is inaccurate, the valve of a piston connecting rod of the engine can be broken, and the device solves the problems.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. An engine ignition timing apparatus characterized in that: the oil injection pump device comprises cam shaft teeth (1), an oil injection pump gear (2), a tension pulley (3), a crankshaft gear (4), a driven gear (5) and a belt (6), wherein power transmission is carried out among the cam shaft teeth (1), the oil injection pump gear (2), the tension pulley (3), the crankshaft gear (4) and the driven gear (5) through the belt (6); the fuel injection pump gear (2) is provided with a fuel injection pump gear positioning pin (7); a positioning wrench (8) is arranged on the tensioning wheel (3); a cam shaft (9) is arranged on the cam shaft teeth (1), and a positioning piece (10) is arranged at one end, far away from the cam shaft teeth (1), of the cam shaft (9); the positioning wrench (8), the positioning plate (10) and the injection pump gear positioning pin (7) are matched with each other.
2. An engine ignition timing apparatus as defined in claim 1, wherein: the positioning wrench (8) is movably connected with the tensioning wheel (3).
3. An engine ignition timing apparatus as defined in claim 1, wherein: the positioning plate (10) is fixedly connected with the camshaft (9).
4. An engine ignition timing apparatus as defined in claim 1, wherein: and the positioning information of the fuel injection pump gear positioning pin (7) and the fuel injection pump gear (2) is movably connected.
5. An engine ignition timing apparatus according to claim 1, characterized in that: the oil injection pump gear positioning pin (7), the positioning wrench (8) and the positioning sheet (10) are positioned simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210819363.2A CN115263637A (en) | 2022-07-12 | 2022-07-12 | Ignition timing device of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210819363.2A CN115263637A (en) | 2022-07-12 | 2022-07-12 | Ignition timing device of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115263637A true CN115263637A (en) | 2022-11-01 |
Family
ID=83766550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210819363.2A Pending CN115263637A (en) | 2022-07-12 | 2022-07-12 | Ignition timing device of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115263637A (en) |
-
2022
- 2022-07-12 CN CN202210819363.2A patent/CN115263637A/en active Pending
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