CN106089434A - Common rail engine cam axis signal transmission mechanism - Google Patents
Common rail engine cam axis signal transmission mechanism Download PDFInfo
- Publication number
- CN106089434A CN106089434A CN201610625815.8A CN201610625815A CN106089434A CN 106089434 A CN106089434 A CN 106089434A CN 201610625815 A CN201610625815 A CN 201610625815A CN 106089434 A CN106089434 A CN 106089434A
- Authority
- CN
- China
- Prior art keywords
- dish
- code
- disc
- signal
- 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
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Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a kind of common rail engine cam axis signal transmission mechanism, its structure is: camshaft phase sensor is fixed on the upper end of high-pressure oil pump connection dish, and code-disc is connected dish with gear and is processed as one, and wherein the circumference of code-disc is provided with 5 signal grooves.Fuel injection pump gear and timing instruction dish are connected dish with gear and fix, and the front end of high-pressure oil pump connection dish is connected with the gear chamber of electromotor, and the rear end of high-pressure oil pump connection dish is connected with high-pressure oil pump housing by 3 studs.5 signal grooves on code-disc circumference, wherein 4 signal grooves each other 90 ° be uniformly distributed, the position of other 1 signal groove and the angle that a groove in described 4 signal grooves is 15 °, when 5 signal grooves are by camshaft phase sensor when code-disc rotates, produce camshaft phase signals.The transmission of pump, camshaft signal collection and maintenance timing marks are integrated, solves the problem that camshaft phase signals harvester is difficult to arrange.
Description
Technical field
The invention belongs to engine components, be specifically related to a kind of structure utilizing high-pressure oil pump driving cam axle phase signal
Device.
Background technology
Due to the countries in the world great attention to environmental protection, the domestic emission request to electromotor progressivelyes reach state of state IV V mark
Standard, so fuel system generally individually uses high-pressure common rail structure.High pressure co-rail system work must collecting crankshaft tach signal and
Camshaft phase signals, the two signal is the requisite signal of normal working of engine.But owing to structure limits, camshaft
The collection of phase signal is arranged on camshaft relatively difficult, especially for improving discharge standard for non-high pressure co-rail system
Electromotor transform, the sensor arranging acquisition phase signal on camshaft is just more difficult to.As signal output apparatus
Its diameter of code-disc can not be the least because the too small signal collected of code-disc diameter is relatively weak, the most easily have interference letter simultaneously
Number.For solving this problem, the present invention proposes a kind of collection structure, both can guarantee that the transmission of oil pump, and can provide again camshaft
Phase signal.
Summary of the invention
It is an object of the invention to, propose a kind of common rail engine cam signal transmitting apparatus, by camshaft signal collection
Integrate with high-pressure oil pump transmission, to solve the problem that camshaft phase signals gathers difficulty.
The technical scheme is that common rail engine cam axis signal transmission mechanism includes: camshaft phase sensor,
High-pressure oil pump connection dish, code-disc and gear connection dish, fuel injection pump gear, timing instruction dish, bolt, studs and oil spout
Pump shaft.Camshaft phase sensor is bolted on the upper end of high-pressure oil pump connection dish, and code-disc is connected dish processing with gear
Being integrated, wherein the circumference of code-disc is provided with 5 signal grooves.Fuel injection pump gear and timing instruction dish are connected with gear by bolt
Dish is fixed, and the front end of high-pressure oil pump connection dish is connected with the gear chamber of electromotor, and the rear end of high-pressure oil pump connection dish is double by 3
Header stud is connected with high-pressure oil pump housing.
The principle of this device is: code-disc and gear connection dish are installed on oil spout pump shaft, code-disc and camshaft-signal sensor position
In straight line.Having 5 signal grooves on code-disc circumference, wherein 4 is equally distributed, other 1 and equally distributed 4 grooves
In a groove become 15 ° of angles.Code-disc is connected dish when rotating with oil spout pump shaft with gear, and camshaft phase sensor will receive 5
The pulse signal that individual signal groove produces, and it is converted into the phase signal of camshaft.Because fuel injection pump gear and timing instruction
Dish is fixed with code-disc (gear is connected dish), and code-disc is fixing with oil spout pump shaft in the way of key and nut to be connected, by injection pump tooth
Wheel drives injection pump axle and code-disc to rotate, it is achieved the transmission of injection pump and camshaft signal produce.
The feature of the present invention and having the beneficial effects that, by the transmission of pump, the collection of camshaft signal and the timing of maintenance
Labelling is integrated, and solves a difficult problem for the bad layout of camshaft phase sensor signal acquisition structure, can be widely used in existing
Use after having the upgrading of non-common rail engine emission on the electromotor of common rail.
Accompanying drawing explanation
Fig. 1 is the decomposition assembling schematic diagram of the principle of the invention and structure.
Fig. 2 is high-pressure oil pump connection dish front end face main apparent direction assembly structure figure of the present invention.
Fig. 3 is X-X sectional structure chart in Fig. 2.
Detailed description of the invention
Below in conjunction with accompanying drawing and by specific embodiment, structure and the principle of the present invention are described in detail.
Common rail engine cam axis signal transmission mechanism, its structure is: camshaft phase sensor 1 is fixed by bolt 2
In the upper end of high-pressure oil pump connection dish 3, code-disc is connected dish with gear and is processed as one, and wherein the circumference of code-disc 4-1 is provided with 5
Signal groove 5, fuel injection pump gear 6 and timing instruction dish 7 are connected dish 4-2 by bolt with gear to be fixed.High-pressure oil pump connection dish
Front end is connected with the gear chamber of electromotor, and the rear end of high-pressure oil pump connection dish is by 3 studs 8 with high-pressure oil pump housing even
Connect.The axis hole of code-disc is a taper hole, and gear connection dish is a straight hole, and oil spout pump shaft is assemblied in code-disc in the way of bonded
Taper hole.
5 signal grooves on code-disc circumference, wherein 4 signal grooves each other 90 ° be uniformly distributed, the position of other 1 signal groove
Putting with a groove (counterclockwise) in described 4 signal grooves in the angle of 15 °, when code-disc rotates, 5 signal grooves are by convex
During wheel shaft phase detector, produce camshaft phase signals.
Timing instruction dish is provided with two symmetrical forks, one of them fork is carved with the groove 7-1 to timing, separately
One fork is for counterweight (considering revolving meber dynamic balancing).
As embodiment, for fixing camshaft phase sensor and the parts such as fuel injection pump gear, timing instruction dish
It is M6 bolt.The front end of high-pressure oil pump connection dish is connected with gear chamber with the bolt of 6 M8；Rear end is the double end spiral shell of 3 M8
Post is connected with high-pressure oil pump shell flange.On timing instruction dish, what the groove of fork represented is the position of a cylinder piston top dead center,
So during gear chamber maintenance before this device is removed, first by the timing marks on gear chamber cover and timing instruction dish fork
On positive time line to good, tear this device the most again open.When again reassembling, gear chamber cover can not be pulled down, but timing is referred to
Show that the timing marks on the alignment gear chamber cover of the groove on dish fork can meet timing events.Gear during work, on bent axle
Driving idle pulley, idle pulley drives fuel injection pump gear to rotate, and fuel injection pump gear driven gear connects disc spins, thus the most just with code-disc
Rotating with oil spout pump shaft, thus this device both can provide the transmission of such as injection pump, achieves again the collection of camshaft signal.
Claims (4)
1. common rail engine cam axis signal transmission mechanism, including camshaft phase sensor, high-pressure oil pump connection dish, code-disc and
Gear connection dish, fuel injection pump gear, timing instruction dish, bolt, studs and oil spout pump shaft, is characterized in that: camshaft phase
Level sensor (1) is fixed on the upper end of high-pressure oil pump connection dish (3) by bolt (2), and code-disc is connected dish with gear and is processed as one
Body, wherein the circumference of code-disc (4-1) is provided with 5 signal grooves (5), fuel injection pump gear (6) and timing instruction dish (7) and passes through bolt
Being connected dish (4-2) to fix with gear, the front end of high-pressure oil pump connection dish is connected with the gear chamber of electromotor, high-pressure oil pump connection dish
Rear end be connected with high-pressure oil pump housing by 3 studs (8).
2., according to the common rail engine cam axis signal transmission mechanism described in claim 1, it is characterized in that: on described code-disc circumference
5 signal grooves, wherein 4 signal grooves each other 90 ° be uniformly distributed, the position of other 1 signal groove with in described 4 signal grooves
Groove counterclockwise in the angle of 15 °, when when code-disc rotates, 5 signal grooves are by described camshaft phase sensor,
Produce camshaft phase signals.
3. according to the common rail engine cam axis signal transmission mechanism described in claim 1, it is characterized in that: described timing instruction dish
Being provided with two symmetrical forks, one of them fork is carved with the groove to timing (7-1), another fork is used for counterweight.
4., according to the common rail engine cam axis signal transmission mechanism described in claim 1, it is characterized in that: the axis hole of described code-disc
Being a taper hole, gear connection dish is a straight hole, and oil spout pump shaft is assemblied in the taper hole of code-disc in the way of key and nut connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610625815.8A CN106089434A (en) | 2016-08-02 | 2016-08-02 | Common rail engine cam axis signal transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610625815.8A CN106089434A (en) | 2016-08-02 | 2016-08-02 | Common rail engine cam axis signal transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106089434A true CN106089434A (en) | 2016-11-09 |
Family
ID=57454379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610625815.8A Pending CN106089434A (en) | 2016-08-02 | 2016-08-02 | Common rail engine cam axis signal transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106089434A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263596A (en) * | 2022-07-25 | 2022-11-01 | 东风汽车集团股份有限公司 | Engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1081342B1 (en) * | 1999-09-03 | 2004-05-12 | Honda Giken Kogyo Kabushiki Kaisha | Construction for a cam rotation sensor attaching portion |
| JP2007032309A (en) * | 2005-07-25 | 2007-02-08 | Nissan Motor Co Ltd | Cam angle sensor mounting structure for internal combustion engine |
| CN203298749U (en) * | 2013-04-27 | 2013-11-20 | 东风朝阳朝柴动力有限公司 | Device for detecting and acquiring camshaft phase signal in axial direction |
| CN103953406A (en) * | 2014-03-17 | 2014-07-30 | 东风朝阳朝柴动力有限公司 | Camshaft gear wheel with signal source generation pins |
-
2016
- 2016-08-02 CN CN201610625815.8A patent/CN106089434A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1081342B1 (en) * | 1999-09-03 | 2004-05-12 | Honda Giken Kogyo Kabushiki Kaisha | Construction for a cam rotation sensor attaching portion |
| JP2007032309A (en) * | 2005-07-25 | 2007-02-08 | Nissan Motor Co Ltd | Cam angle sensor mounting structure for internal combustion engine |
| CN203298749U (en) * | 2013-04-27 | 2013-11-20 | 东风朝阳朝柴动力有限公司 | Device for detecting and acquiring camshaft phase signal in axial direction |
| CN103953406A (en) * | 2014-03-17 | 2014-07-30 | 东风朝阳朝柴动力有限公司 | Camshaft gear wheel with signal source generation pins |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263596A (en) * | 2022-07-25 | 2022-11-01 | 东风汽车集团股份有限公司 | Engine |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161109 |