CN209385241U - The automatically controlled adjustment device of engine oil advance angle - Google Patents
The automatically controlled adjustment device of engine oil advance angle Download PDFInfo
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- CN209385241U CN209385241U CN201822010178.0U CN201822010178U CN209385241U CN 209385241 U CN209385241 U CN 209385241U CN 201822010178 U CN201822010178 U CN 201822010178U CN 209385241 U CN209385241 U CN 209385241U
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- gear
- gear ring
- planetary
- advance angle
- engine
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- 239000010705 motor oil Substances 0.000 title claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 239000000446 fuel Substances 0.000 claims abstract description 25
- 238000002347 injection Methods 0.000 claims abstract description 18
- 239000007924 injection Substances 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims description 11
- 239000003921 oil Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 2
- 239000010710 diesel engine oil Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Valve Device For Special Equipments (AREA)
Abstract
The utility model discloses a kind of automatically controlled adjustment devices of engine oil advance angle, are placed outside mechanical injection pump and are controlled by ECU；Including first planetary gear deceleration mechanism and the second planetary gear speed reducing mechanism, first planetary wheel carrier is fixedly connected with the camshaft of mechanical injection pump, second planetary wheel carrier is fixedly connected with cam shaft gear, first planetary gear deceleration mechanism is identical as corresponding gear in second planetary gear reducing mechanism, and the first centre wheel is fixedly connected or can be integrated with the second centre wheel；Rotation gear ring is sequentially connected with gear ring angle controller, ECU acquires engine operating condition information, and the position for the corresponding rotation gear ring of best fuel supply advance angle degree for inquiring each operating condition engine of calibration, ECU make the position for rotating gear ring and turning to calibration by gear ring angle controller.The utility model according to the fuel supply advance angle of the different Operating condition adjustment engines of engine, can make the operating condition of engine be in best under the premise of not changing former engine fuel system.
Description
Technical field
The utility model relates to diesel motor fuel feed system technical fields, more particularly to a kind of and mechanical oil spout
Pump the automatically controlled adjustment device of matching used engine oil advance angle.
Background technique
Traditional diesel engine oil supply system carries out fuel feeding using mechanical injection pump, and the fuel feeding moment is by cam shape
Shape determines, as shown in Figure 1, crankshaft toothed wheel E and cam shaft gear D engaged transmission, for four-stroke engine, crankshaft toothed wheel
The gear ratio of E and cam shaft gear D are as follows: 1:2, for two stroke engine, gear ratio 1:1, camshaft B and cam
Shaft gear D links, and is provided with cam C on camshaft B, closes the linkage that cam C keeps stringent in crankshaft toothed wheel E and injection pump
System guarantees injection pump in strict accordance with the angular position commencement of fuel injection of crankshaft.
Diesel engine corresponds to a best fuel supply advance angle, all under different operating conditions in order to refer to the performance of engine
Mark reaches best, it is desirable to according to the operating condition of engine, be adjusted to the supply timing of engine, but above-mentioned traditional diesel oil hair
Motivation oil supply system cannot be adjusted in real time according to the operating condition of engine, the performance indicator of engine is made to be affected.
Traditional fuel supply advance angle automatic regulator, can according to the rotation speed change of engine, adjust automatically fuel supply advance angle,
But oil supply angle is only partially adjusted with the variation of revolving speed, is difficult for oil supply angle to be adjusted to the best time, and cannot be with negative
The variation of lotus changes oil supply angle, and application effect is restricted.
Chinese utility model patent CN86201594U discloses a kind of high-pressure injection pump of adjustable fuel supply advance angle, supplies
Although advance angle oil automatically controlled can adjust, it needs to be transformed injection pump.
Chinese utility model patent CN202690286U discloses a kind of single cylinder diesel engine oil jet pump fuel supply advance angle tune
Regulating device, although can be adjusted by the automatically controlled fuel feeding moment, fuel delivery is also changed while changing the fuel feeding moment, the dress
It installs inside injection pump, needs each plunger that will increase a set of mechanism, structure is complicated.
Utility model content
For the above-mentioned deficiency of the prior art, the utility model provides a kind of automatically controlled adjustment dress of engine oil advance angle
It sets, it, can be according to the fuel feeding of the different Operating condition adjustment engines of engine under the premise of not changing former engine fuel system
Advance angle makes the operating condition of engine be in best.
In order to solve the above technical problems, the utility model uses a kind of automatically controlled adjustment device of engine oil advance angle, outside
It is placed in mechanical injection pump and is controlled by ECU；It include: first planetary gear deceleration mechanism, the first planetary gear speed reducer
Structure includes the first gear ring, the first planetary wheel carrier and the first centre wheel, first planetary wheel carrier and the mechanical injection pump
Camshaft is fixedly connected, and first planetary wheel carrier is equipped with the first planetary gear；Second planetary gear reducing mechanism, described second
Planetary gear reducing mechanism includes the second gear ring, the second planetary wheel carrier and the second centre wheel, second planetary wheel carrier and cam
Shaft gear is fixedly connected, and second planetary wheel carrier is equipped with the second planetary gear；First planetary gear deceleration mechanism and institute
It is identical to state corresponding gear in the second planetary gear reducing mechanism, first centre wheel is fixedly connected with second centre wheel
Or it can be integrated；In first gear ring and second gear ring, one be fixedly mounted be denoted as fixed gear ring, the other is
Rotational installation is denoted as rotation gear ring, and the rotation gear ring is sequentially connected with gear ring angle controller, the gear ring corner control
Device processed is controlled by the ECU；Sensor, for detecting the angle position of the rotation gear ring, the sensor and the ECU
Electrical connection, the ECU acquires engine operating condition information, and inquires the best fuel supply advance angle degree pair of each operating condition engine of calibration
The position for the rotation gear ring answered, the ECU make the rotation gear ring turn to calibration by the gear ring angle controller
Position.
Wherein, first planetary gear deceleration mechanism and second planetary gear reducing mechanism are located at the camshaft
Between gear and the camshaft.
Wherein, the cam shaft gear rotational installation is in the camshaft, first centre wheel and second center
Wheel rotation is installed on the camshaft, the camshaft axially across first centre wheel and second centre wheel with it is described
First planetary wheel carrier is fixedly connected.
Wherein, the gear ring angle controller includes the adjustment gear driven by power device, and the rotation gear ring is set
It is equipped with external gear, the adjustment gear is engaged with the external gear.
Wherein, the power device is motor.
After adopting the above technical scheme, the technical effect of the utility model is:
1) in the utility model, the first planet tooth is provided between the camshaft and cam shaft gear of mechanical injection pump
Wheel deceleration mechanism and the second planetary gear reducing mechanism, this two sets deceleration mechanisms being connected are respectively provided with independent gear ring, row
Star wheel frame and planetary gear, and share and have a centre wheel, ECU acquires engine operating condition information, and inquires each operating condition hair of calibration
The position of the corresponding rotation gear ring of the best fuel supply advance angle degree of motivation, ECU make to rotate gear ring by gear ring angle controller
The position of calibration is turned to, injection pump is engine oil by the optimal fuel feeding moment.
2) in the utility model, the cam shaft gear rotational installation is in the camshaft, first centre wheel and institute
The rotational installation of the second centre wheel is stated in the camshaft, the camshaft is axially across in first centre wheel and described second
Heart wheel is fixedly connected with first planetary wheel carrier, and the structure is more compact, is reequiped and is easier on conventional engines.
In conclusion the utility model is under the premise of changing former engine fuel system, it can be according to engine
The fuel supply advance angle of different Operating condition adjustment engines makes the operating condition of engine be in best.
Detailed description of the invention
Fig. 1 is a kind of well known diesel motor fuel feed system structure sectional view；
Fig. 2 is the structure sectional view of the automatically controlled adjustment Installation practice 1 of the utility model engine oil advance angle；
Fig. 3 is the forward structure schematic diagram of the second planetary gear reducing mechanism and its associated components in Fig. 1；
Fig. 4 is the structure sectional view of the automatically controlled adjustment Installation practice 2 of the utility model engine oil advance angle；
In figure:
1a- camshaft, the first planetary wheel carrier of 21a-, the first planetary gear of 22a-, the first gear ring of 23a-, the second planetary gear of 31a-
Frame, the second planetary gear of 32a-, the second gear ring of 33a-, 4a- centre wheel, 5- gear ring angle controller, 6- cam shaft gear, 7- are bent
Shaft gear, 8- sensor；
1b- camshaft, the first planetary wheel carrier of 21b-, the first planetary gear of 22b-, the first gear ring of 23b-, the second planetary gear of 31b-
Frame, the second planetary gear of 32b-, the second gear ring of 33b-, 4b- centre wheel；
The mechanical injection pump of A-, B- camshaft, C- cam, D- cam shaft gear, E- crankshaft toothed wheel.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Embodiment 1
As Fig. 2 and Fig. 3 jointly shown in, a kind of automatically controlled adjustment device of engine oil advance angle is placed outside mechanical spray
Oil pump is simultaneously controlled by ECU.
The first planetary gear being connected is provided between the camshaft 1a and cam shaft gear 6 of mechanical injection pump to subtract
Fast mechanism and the second planetary gear reducing mechanism, this two sets of deceleration mechanisms are respectively provided with independent gear ring, planetary wheel carrier and planet
Wheel, sharing has a centre wheel.Specific structure is as follows:
First planetary gear deceleration mechanism includes the first gear ring 23a, the first planetary wheel carrier 21a and the first centre wheel,
First gear ring 23a is the fixed gear ring being fixedly mounted, and the camshaft 1a of the first planetary wheel carrier 21a and the mechanical injection pump are solid
Fixed connection, the first planetary wheel carrier 21a are equipped with the first planetary gear 22a, the rotation at the first center planetary wheel carrier 21a and the first centre wheel
Turn center coincidence.
Second planetary gear reducing mechanism includes the second gear ring 33a, the second planetary wheel carrier 31a and the second centre wheel,
Second gear ring 33a is the rotation gear ring of rotational installation, and the second planetary wheel carrier 31a is fixedly connected with cam shaft gear 6, the second planet
Wheel carrier 31a is equipped with the second planetary gear 32a, and the second center planetary wheel carrier 31a is overlapped with the rotation center of the first centre wheel.
First centre wheel is fixedly connected or can be integrated with second centre wheel, and the two constitutes centre wheel in Fig. 2
4a, first planetary gear deceleration mechanism are connect with second planetary gear reducing mechanism by centre wheel 4a, and described
First planetary gear deceleration mechanism is identical as corresponding gear in second planetary gear reducing mechanism, so that the first planetary gear
The revolving speed of frame 21a and the second planetary wheel carrier 31a are identical.
Second gear ring 33a transmission connection rack gear angle controller 5, gear ring angle controller 5 is controlled by described
ECU。
Sensor 8 is used to detect the angle position of the second gear ring 33a, and sensor 8 is electrically connected with ECU, and ECU acquires engine
Work information, and the position of the corresponding second gear ring 33a of best fuel supply advance angle degree of each operating condition engine of calibration is inquired, lead to
Cross the position that gear ring angle controller 5 makes the second gear ring 33a turn to calibration.
In the present embodiment, gear ring angle controller 5 includes the adjustment gear driven by power device, rotation gear ring setting
There is external gear, the adjustment gear is engaged with the external gear, and the power device is preferably torque motor.The control of gear ring corner
Device 5 can also be that the worm gear mechanism being driven by motor, motor driven worm screw, worm gear are set to the periphery of rotation gear ring
Face.Gear ring angle controller 5 can also be realized by hydraulic gyration mechanism.The structure of gear ring angle controller 5 is not limited to
In this, all can make to rotate the mechanism that gear ring turns to calibration position under control of the ecu, whether mechanical and or hydraulic
Be all feasible.
In the present embodiment, the first gear ring 23a can also can also be with using the rotation gear ring of rotational installation, the second gear ring 33a
Using the fixed gear ring of fixed installation.
Embodiment 2
As shown in figure 4, the structure of embodiment 2 is substantially the same manner as Example 1, the difference is that, cam shaft gear 6 rotates
It is installed on camshaft 1b, the first centre wheel and the second centre wheel, which are fixedly connected or can be integrated, constitutes centre wheel 4b, centre wheel 4b
It is rotatablely installed and is fixedly connected axially across centre wheel 4b with the first planetary wheel carrier 21b in camshaft 1b, camshaft 1b.With embodiment
1 compares, and the structure is more compact, is easier to reequip on conventional engines.
In the present embodiment, the first gear ring 23b is rotation gear ring, and the second gear ring 33a is that fixed gear ring is in actual use
It is easy for installation, the two can also be exchanged.
The utility model is not limited to the above embodiment, all design, principle, structure and methods based on the utility model
Made various improvement, fall within the protection scope of the utility model.
Claims (7)
1. a kind of automatically controlled adjustment device of engine oil advance angle, is placed outside mechanical injection pump and is controlled by ECU；Its feature exists
In, comprising:
First planetary gear deceleration mechanism, first planetary gear deceleration mechanism include the first gear ring, the first planetary wheel carrier and
First centre wheel, first planetary wheel carrier are fixedly connected with the camshaft of the mechanical injection pump, first planetary gear
Frame is equipped with the first planetary gear；
Second planetary gear reducing mechanism, second planetary gear reducing mechanism include the second gear ring, the second planetary wheel carrier and
Second centre wheel, second planetary wheel carrier are fixedly connected with cam shaft gear, and second planetary wheel carrier is equipped with the second row
Star-wheel；
First planetary gear deceleration mechanism is identical as corresponding gear in second planetary gear reducing mechanism, and described
One centre wheel is fixedly connected or can be integrated with second centre wheel；
In first gear ring and second gear ring, one be fixedly mounted be denoted as fixed gear ring, the other is rotation peace
Dress is denoted as rotation gear ring, and the rotation gear ring is sequentially connected with gear ring angle controller, the gear ring angle controller
It is controlled by the ECU；
Sensor, for detecting the angle position of the rotation gear ring, the sensor is electrically connected with the ECU, and the ECU is adopted
Collect engine operating condition information, and the position of the corresponding rotation gear ring of the best fuel supply advance angle degree for inquiring each operating condition engine of calibration
It sets, the ECU makes the position for rotating gear ring and turning to calibration by the gear ring angle controller.
2. the automatically controlled adjustment device of engine oil advance angle as described in claim 1, which is characterized in that the first planet tooth
Deceleration mechanism and second planetary gear reducing mechanism are taken turns between the cam shaft gear and the camshaft.
3. the automatically controlled adjustment device of engine oil advance angle as claimed in claim 2, which is characterized in that first gear ring is
Fixed gear ring, second gear ring are rotation gear rings.
4. the automatically controlled adjustment device of engine oil advance angle as described in claim 1, which is characterized in that the cam shaft gear
It is rotatablely installed in the camshaft, first centre wheel and second centre wheel rotational installation are described in the camshaft
Camshaft is fixedly connected axially across first centre wheel and second centre wheel with first planetary wheel carrier.
5. the automatically controlled adjustment device of engine oil advance angle as claimed in claim 4, which is characterized in that first gear ring is
Gear ring is rotated, second gear ring is fixed gear ring.
6. the automatically controlled adjustment device of engine oil advance angle as described in claim 1, which is characterized in that the gear ring corner control
Device processed includes the adjustment gear driven by power device, and the rotation gear ring is provided with external gear, the adjustment gear and institute
State external gear engagement.
7. the automatically controlled adjustment device of engine oil advance angle as claimed in claim 6, which is characterized in that the power device is
Motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822010178.0U CN209385241U (en) | 2018-11-30 | 2018-11-30 | The automatically controlled adjustment device of engine oil advance angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822010178.0U CN209385241U (en) | 2018-11-30 | 2018-11-30 | The automatically controlled adjustment device of engine oil advance angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209385241U true CN209385241U (en) | 2019-09-13 |
Family
ID=67870371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822010178.0U Active CN209385241U (en) | 2018-11-30 | 2018-11-30 | The automatically controlled adjustment device of engine oil advance angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209385241U (en) |
-
2018
- 2018-11-30 CN CN201822010178.0U patent/CN209385241U/en active Active
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