CN2876712Y - Rotating speed measurer for diesel engine - Google Patents
Rotating speed measurer for diesel engine Download PDFInfo
- Publication number
- CN2876712Y CN2876712Y CN 200620081201 CN200620081201U CN2876712Y CN 2876712 Y CN2876712 Y CN 2876712Y CN 200620081201 CN200620081201 CN 200620081201 CN 200620081201 U CN200620081201 U CN 200620081201U CN 2876712 Y CN2876712 Y CN 2876712Y
- Authority
- CN
- China
- Prior art keywords
- flywheel
- diesel engine
- sensor
- rotating speed
- mounting hole
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a rotating speed measurer for diesel engine, which comprises a flywheel casing to be fixed on air cylinder proper, a flywheel to be arranged on crank and a rotating speed sensor, in which some inductive holes are arranged circumferentially on the rim of the flywheel while a mounting hole is arranged on the flywheel casing for the sensor; the rotation speed sensor is fixed on the sensor mounting hole, the installation location of the rotation speed sensor is in response to the location of the inductive hole. The measuring device for diesel engine rotation can not only measure the flywheel speed, but also can measure the flywheel phase through the simple structure, the measured value can be compared with the signal from the sensor located in the cam position in which it can ensure the specific location of the piston in the cylinder, and provide with data for oil spraying moment, the utility model is widely used on electronic injection diesel engine.
Description
Technical field
The utility model relates to a kind of diesel engine speed measurement mechanism.
Background technology
On diesel engine, speed probe is measured tach signal near generally being installed in movement parts.What have is contained in crankshaft front end, and what have is contained on the generator, and what have is installed on the bell housing, can only survey rotating speed, and function ratio is more single, installs also fairly simplely, fixes to get final product at correct position.But in the electronic injection diesel engine field, not only to determine speed of crankshaft, also will determine the phase place of bent axle, could with the mutual reference of CMPS Camshaft Position Sensor, determine the top dead centre of piston, for injection timing provides data.
The utility model content
Technical problem to be solved in the utility model is: a kind of diesel engine speed measurement mechanism is provided, and by simple structure, it not only can measure the rotating speed of flywheel, and can measure the phase place of flywheel.
For solving the problems of the technologies described above, the technical solution of the utility model is: the diesel engine speed measurement mechanism, comprise the bell housing that is fixed in cylinder block, and be installed on the flywheel of bent axle, speed probe, the wheel rim of described flywheel are provided with several sensing holes along circumferential arrangement; Described bell housing is provided with a sensor mounting hole, and described speed probe is fixed in the sensor mounting hole, and the installation site of described speed probe is corresponding with the position of described sensing hole.
Because speed probe is installed on bell housing, so it can measure the rotating speed of flywheel, input ECU (ECU (Electrical Control Unit)) back provides data for the rotating speed instrument.Simultaneously, the wheel rim of flywheel is provided with several sensing holes along circumferential arrangement, and the installation site of speed probe is corresponding with the position of described sensing hole, and according to the layout of sensing hole on the flywheel border, speed probe just can be measured the phase place of flywheel.Then, with the signal that records input ECU (ECU (Electrical Control Unit)), the signal cross-reference that records with cam-position sensor, thus determine the particular location of piston in cylinder, for injection timing provides data.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is the partial sectional view of the utility model embodiment.
Embodiment
The diesel engine speed measurement mechanism as shown in drawings, comprises the bell housing 1 that is fixed in cylinder block, is installed on the flywheel 2 of bent axle, and speed probe 3, the wheel rim of described flywheel 2 are provided with several sensing holes 21 along circumferential arrangement; Described bell housing 1 is provided with a sensor mounting hole, and described speed probe 3 is fixed in the sensor mounting hole, and the position of the installation site of described speed probe 3 and described sensing hole 21 is corresponding.
Because speed probe 3 is installed on bell housing 1, so it can measure the rotating speed of flywheel 2, input ECU (ECU (Electrical Control Unit)) back provides data for the rotating speed instrument.Simultaneously, the wheel rim of flywheel 2 is provided with several sensing holes 21 along circumferential arrangement, and the position of the installation site of speed probe 3 and described sensing hole 21 is corresponding, and according to the layout of sensing hole 21 on flywheel 2 borders, speed probe 3 just can be measured the phase place of flywheel 2.Then, with the signal that records input ECU (ECU (Electrical Control Unit)), the signal cross-reference that records with cam-position sensor, thus determine the particular location of piston in cylinder, for injection timing provides data.
The utility model is simple in structure, and is easy for installation, is widely used in electronic injection diesel engine.
Claims (1)
- The diesel engine speed measurement mechanism comprises the bell housing (1) that is fixed in cylinder block, is installed on the flywheel (2) of bent axle, and speed probe (3) is characterized in that: the wheel rim of described flywheel (2) is provided with several sensing holes along circumferential arrangement (21); Described bell housing (1) is provided with a sensor mounting hole, and described speed probe (3) is fixed in the sensor mounting hole, and the position of the installation site of described speed probe (3) and described sensing hole (21) is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620081201 CN2876712Y (en) | 2006-02-22 | 2006-02-22 | Rotating speed measurer for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620081201 CN2876712Y (en) | 2006-02-22 | 2006-02-22 | Rotating speed measurer for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2876712Y true CN2876712Y (en) | 2007-03-07 |
Family
ID=37819949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620081201 Expired - Lifetime CN2876712Y (en) | 2006-02-22 | 2006-02-22 | Rotating speed measurer for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2876712Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358858B (en) * | 2007-07-31 | 2010-06-16 | 比亚迪股份有限公司 | Detection device and method for crankshaft position sensor |
| CN102183372A (en) * | 2011-03-18 | 2011-09-14 | 湖南工程学院 | Dynamical performance testing device for petroleum-electricity hybrid power system |
| CN102748128A (en) * | 2012-06-14 | 2012-10-24 | 东风朝阳朝柴动力有限公司 | Timing gear housing gear train for common-rail engine |
-
2006
- 2006-02-22 CN CN 200620081201 patent/CN2876712Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358858B (en) * | 2007-07-31 | 2010-06-16 | 比亚迪股份有限公司 | Detection device and method for crankshaft position sensor |
| CN102183372A (en) * | 2011-03-18 | 2011-09-14 | 湖南工程学院 | Dynamical performance testing device for petroleum-electricity hybrid power system |
| CN102183372B (en) * | 2011-03-18 | 2012-04-11 | 湖南工程学院 | Dynamical performance testing device for petroleum-electricity hybrid power system |
| CN102748128A (en) * | 2012-06-14 | 2012-10-24 | 东风朝阳朝柴动力有限公司 | Timing gear housing gear train for common-rail engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070307 |
|
| EXPY | Termination of patent right or utility model |