CN207048870U - A kind of diesel engine - Google Patents
A kind of diesel engine Download PDFInfo
- Publication number
- CN207048870U CN207048870U CN201720923058.2U CN201720923058U CN207048870U CN 207048870 U CN207048870 U CN 207048870U CN 201720923058 U CN201720923058 U CN 201720923058U CN 207048870 U CN207048870 U CN 207048870U
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- gear
- phase detector
- gear chamber
- shared
- diesel engine
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- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The utility model belongs to diesel engine technologies field.Including body, gear chamber, shared-rail oil jetting pump, phase detector, shared-rail oil jetting pump mounting hole, phase detector mounting hole are provided with gear chamber, the fuel injection pump gear with the supporting installation of shared-rail oil jetting pump is provided with gear chamber inner chamber, shared-rail oil jetting pump mounting hole is arranged on gear chamber and body faying face homonymy, sensor block is provided with fuel injection pump gear, phase detector is fixedly mounted on phase detector mounting hole, and phase detector mounting hole is arranged on gear chamber and body faying face homonymy or is arranged on gear chamber side and radially arranged with fuel injection pump gear.The utility model diesel engine solves phase detector and is arranged in nervous its space at engine cam, assembling and maintenance inconvenience, and at this around electrical equipment and revolving part easily cause signal interference, cause time of ignition misjudgment, cause engine inoperative or the problem of hard-to-start.
Description
Technical field
The utility model belongs to diesel engine technologies field, more particularly to a kind of non-road diesel engine.
Background technology
Fuel system uses high-pressure common rail technology, is that diesel engine enterprise adaptation regulation reaches state four to engine emission
Technology path used by the standard requirement of state five.High pressure common rail fuel injection system can be held to engine injection timing, oil spout
Renew, the progress soft readjustment of injection pressure, fuel injection characteristic, and realize multiple oil spout, make the burning of engine more abundant, so as to enter
One step improves economy, dynamic property and the discharge performance of engine.The automobile-used class of high pressure common rail fuel injection system is used at present
Engine, including arrangement cam phase sensor collection camshaft timing signal, arrangement crankshaft rotational speed sensor collection hair
The rotating speed of motivation and a cylinder piston top dead center position signal, to realize the judgement of engine igniting time, gas phase is matched somebody with somebody in accurate control
Position, realizes sequential fuel injection.Available engine is that phase detector is arranged at engine cam, and phase detector is arranged
At the front portion of camshaft or rear portion, sense camshaft location and transmit induced signal.But this structure be arranged in it is non-road
But seem on diesel engine difficult：Generator and hydraulic pump are disposed with the camshaft side of non-road diesel engine
Transmission parts, tensioner wheel component, then phase detector is arranged here, first, the nervous assembling in space and maintenance are inconvenient, second,
Surrounding electrical equipment and revolving part easily cause signal interference, cause time of ignition misjudgment, cause engine inoperative or difficult
It is dynamic.
The content of the invention
The purpose of this utility model is to provide a kind of new diesel engine, overcomes existing non-road diesel engine
Phase detector is arranged in the problem of nervous space at engine cam, surrounding electrical equipment and revolving part easily cause signal interference.
The technical solution of the utility model is：A kind of diesel engine, including body, gear chamber, shared-rail oil jetting pump, phase
Sensor, shared-rail oil jetting pump mounting hole is provided with the gear chamber, is provided with the gear chamber inner chamber and the common rail
The fuel injection pump gear of the supporting installation of injection pump, the shared-rail oil jetting pump mounting hole are arranged on gear chamber and body faying face homonymy,
It, which is structurally characterized in that in the gear chamber, is provided with phase detector mounting hole, on the fuel injection pump gear with shared-rail oil jetting pump
Relative side is provided with sensor block, and the phase detector is fixedly mounted on phase detector mounting hole and relative with sensor block
It should arrange.
The phase detector mounting hole is arranged on gear chamber and body faying face homonymy or is arranged on gear chamber side
Radially arranged with the sensor block on fuel injection pump gear.
Preferably, the sensor block is integrally formed with fuel injection pump gear, or is fixedly mounted on fuel injection pump gear.
The rise initial line and the angle α of fuel injection pump gear key slot center line of the sensor block are 20 °~45 °, sensor block starting
Angle β while with terminating is more than 35 °.
Preferably, the rise initial line and the angle α of fuel injection pump gear key slot center line of the sensor block are 25 °, and sensor block rises
Initial line is 36 ° with the angle β for terminating side.
The phase detector is mounted by means of bolts in gear chamber.
A kind of operation principle of diesel engine of the utility model is：After the utility model uses said structure, phase passes
Sensor changes into the mode of collection shared-rail oil jetting pump gear signal by gathering the mode of engine cam axis signal originally.Start
When machine works, the signal of sensor block, crankshaft rotational speed sensor induction generator on phase detector collection co-rail oil injection pump gear
Rotating speed and piston top dead center position signal, now, Engine ECU receive simultaneously crankshaft rotational speed sensor signal, phase pass
After sensor signal, the judgement of engine igniting time and port timing, accurate control sequence oil spout and time of ignition are carried out.
A kind of beneficial effect of diesel engine of the utility model is：After the utility model uses said structure, phase passes
Sensor be arranged in gear chamber side or with body faying face homonymy, to gather fuel injection pump gear signal, phase detector and right
The installation of wiring beam is more convenient with dismounting, and does not have electrical part and revolving part around the position, will not be by electrical part and rotation
Turn the interference of part signal；Shared-rail oil jetting pump and fuel injection pump gear rigid attachment, the oil injection time signal of collection are more direct；Reaching
While sequential fuel injection control, time of ignition control effect, solve phase detector and be arranged at engine cam, when
Space is nervous at this, assembles and repairs the problem of inconvenient, second, electrical equipment and revolving part easily cause signal interference around at this,
Cause time of ignition misjudgment, cause engine inoperative or the problem of hard-to-start.
Further, diesel engine of the present utility model, phase detector are believed by gathering engine cam originally
Number mode, change into collection shared-rail oil jetting pump gear signal mode, due to fuel injection pump gear and cam shaft gear number of teeth phase
Deng, with speed of crankshaft than consistent, therefore the mode of collection shared-rail oil jetting pump gear signal and original collection engine cam letter
Number mode compare, the differential seat angle relative to the cylinder piston top dead center signal of crankshaft rotational speed sensor induction generator one is equal
, and what is directly reflected due to the signal is shared-rail oil jetting pump oil injection time, eliminates phase detector original and is arranged in and starts
When at machine camshaft, signal errors caused by as the back lash between gear train.
Brief description of the drawings
Fig. 1 is the utility model diesel engine shared-rail oil jetting pump and phase detector schematic view of the mounting position.
Fig. 2 is Fig. 1 A direction views.
Fig. 3 is position view of the sensor block on fuel injection pump gear.
Fig. 4 is Fig. 3 N-N to sectional view.
Fig. 5 is that phase detector is arranged on gear chamber lateral location schematic diagram.
In figure：1st, body, 2, gear chamber, 3, shared-rail oil jetting pump, 4, fuel injection pump gear, 5, phase detector, 6, sensor block.
Embodiment
Below in conjunction with the accompanying drawings, the technical solution of the utility model is clearly fully described by.
Embodiment 1：With reference to figure 1-3, a kind of diesel engine, including body, gear chamber, shared-rail oil jetting pump, phase sensing
Device, is provided with shared-rail oil jetting pump mounting hole, phase detector mounting hole in gear chamber, and phase detector is pacified with shared-rail oil jetting pump
Mounted in gear chamber and body faying face homonymy, the oil spout pump tooth with the supporting installation of shared-rail oil jetting pump is provided with gear chamber inner chamber
Wheel, is provided with sensor block, phase detector is fixedly installed in the phase detector being arranged in gear chamber on fuel injection pump gear
In mounting hole, and arrangement corresponding with the sensor block on fuel injection pump gear, facilitate fuel injection pump gear to sense block signal when rotating
Collection；Sensor block is arranged on fuel injection pump gear side, is integrally formed with fuel injection pump gear, and sensor block plays initial line and oil spout pump tooth
The angle α of wheel key way center line is 25 °, and sensor block plays initial line with terminating the angle β on side as 36 °；Phase detector passes through spiral shell
Bolt is fixedly mounted in gear chamber, to ensure that phase detector leaves rational gap after installing between sensor block.
The other parts structure and operation principle of engine belong to prior art, will not be repeated here.When engine works,
Phase detector gathers co-rail oil injection pump gear sensor block signal, and the rotating speed and a cylinder of crankshaft rotational speed sensor collection engine are lived
Dead-centre position signal beyond the Great Wall, now, Engine ECU receives crankshaft rotational speed sensor signal, phase detector signal simultaneously after,
Carry out the judgement of engine igniting time and port timing, accurate control sequence oil spout and time of ignition.
Embodiment 2：With reference to figure 1,3 and 5, a kind of diesel engine, its structure and working method and embodiment 1 basic one
Cause, difference be phase detector mounting hole be arranged on gear chamber side with the radially cloth of the sensor block on fuel injection pump gear
Put, sensor block is arranged on fuel injection pump gear side, is fixedly mounted on bolt on fuel injection pump gear.
Above-mentioned given embodiment 1,2, there is identical beneficial effect to be for it：Phase detector is arranged in gear chamber side
Face or with body faying face homonymy, to gather fuel injection pump gear signal, the installation and removal of phase detector and docking wire harness
It is more convenient, and there is no electrical part and revolving part around the position, it will not be disturbed by electrical part and revolving part signal；Common rail
Injection pump and fuel injection pump gear rigid attachment, the oil injection time signal of collection are more direct.When reaching sequential fuel injection control, igniting
While carving control effect, solve phase detector and be arranged at engine cam, when space is nervous at this, assembling and
The problem of inconvenient is repaired, second, electrical equipment and revolving part easily cause signal interference around at this, causes time of ignition to misdeem
By mistake, cause engine inoperative or the problem of hard-to-start.
Further, diesel engine of the present utility model, phase detector are believed by gathering engine cam originally
Number mode, change into collection shared-rail oil jetting pump gear signal mode, due to fuel injection pump gear and cam shaft gear number of teeth phase
Deng, with speed of crankshaft than consistent, therefore the mode of collection shared-rail oil jetting pump gear signal and original collection engine cam letter
Number mode compare, the differential seat angle relative to the cylinder piston top dead center signal of crankshaft rotational speed sensor induction generator one is equal
, and what is directly reflected due to the signal is shared-rail oil jetting pump oil injection time, eliminates phase detector original and is arranged in and starts
When at machine camshaft, signal errors caused by as the back lash between gear train.
Be presented above specific embodiment of the utility model, but the utility model is not limited to this, this area it is common
Technical staff can still make a change or change according to principle of the present utility model, any not depart from changing for the utility model principle
Become and change, in the scope of protection of the utility model.
Claims (8)
1. a kind of diesel engine, including body, gear chamber, shared-rail oil jetting pump, phase detector, are provided with the gear chamber
Shared-rail oil jetting pump mounting hole, the oil spout pump tooth with the supporting installation of the shared-rail oil jetting pump is provided with the gear chamber inner chamber
Wheel, the shared-rail oil jetting pump mounting hole are arranged on gear chamber and body faying face homonymy, it is characterised in that are set in the gear chamber
There is phase detector mounting hole, the side relative with shared-rail oil jetting pump is provided with sensor block on the fuel injection pump gear, described
Phase detector is fixedly mounted on phase detector mounting hole and arrangement corresponding with sensor block.
2. a kind of diesel engine according to claim 1, it is characterised in that the phase detector mounting hole is arranged on
Gear chamber and body faying face homonymy are arranged on gear chamber side and radially arranged with the sensor block on fuel injection pump gear.
3. a kind of diesel engine according to claim 2, it is characterised in that the sensor block and fuel injection pump gear one
Shaping.
4. a kind of diesel engine according to claim 2, it is characterised in that the sensor block is fixedly mounted on injection pump
On gear.
5. a kind of diesel engine according to claim 3 or 4, it is characterised in that the sensor block plays initial line and spray
The angle α of oil pump gear key slot center line is 20 °~45 °, and it is more than 35 ° that sensor block, which plays initial line with the angle β for terminating side,.
6. a kind of diesel engine according to claim 5, it is characterised in that the sensor block plays initial line and injection pump
The key slot center line angle α of gear is 25 °, and it is 36 ° that sensor block, which plays initial line with the angle β for terminating side,.
7. a kind of diesel engine according to claim 5, it is characterised in that the phase detector is bolted
In gear chamber.
8. according to any one diesel engine described in claim 1,2,3,4,6, it is characterised in that the phase detector
It is mounted by means of bolts in gear chamber.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720923058.2U CN207048870U (en) | 2017-07-27 | 2017-07-27 | A kind of diesel engine |
| CN201820086500.5U CN207829992U (en) | 2017-07-27 | 2017-07-27 | A kind of gear chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720923058.2U CN207048870U (en) | 2017-07-27 | 2017-07-27 | A kind of diesel engine |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820086500.5U Division CN207829992U (en) | 2017-07-27 | 2017-07-27 | A kind of gear chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207048870U true CN207048870U (en) | 2018-02-27 |
Family
ID=61498275
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820086500.5U Active CN207829992U (en) | 2017-07-27 | 2017-07-27 | A kind of gear chamber |
| CN201720923058.2U Active CN207048870U (en) | 2017-07-27 | 2017-07-27 | A kind of diesel engine |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820086500.5U Active CN207829992U (en) | 2017-07-27 | 2017-07-27 | A kind of gear chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN207829992U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108710936A (en) * | 2018-08-01 | 2018-10-26 | 广西玉柴机器股份有限公司 | Electrodeless variable engine signal panels number of teeth electronic commutator |
| CN108979896A (en) * | 2018-09-04 | 2018-12-11 | 江苏农华智慧农业科技股份有限公司 | A kind of common rail diesel engine gear chamber cover |
-
2017
- 2017-07-27 CN CN201820086500.5U patent/CN207829992U/en active Active
- 2017-07-27 CN CN201720923058.2U patent/CN207048870U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108710936A (en) * | 2018-08-01 | 2018-10-26 | 广西玉柴机器股份有限公司 | Electrodeless variable engine signal panels number of teeth electronic commutator |
| CN108979896A (en) * | 2018-09-04 | 2018-12-11 | 江苏农华智慧农业科技股份有限公司 | A kind of common rail diesel engine gear chamber cover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN207829992U (en) | 2018-09-07 |
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