CN105179130B - A kind of device for preventing camshaft-signal sensor from failing - Google Patents
A kind of device for preventing camshaft-signal sensor from failing Download PDFInfo
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- CN105179130B CN105179130B CN201510736923.8A CN201510736923A CN105179130B CN 105179130 B CN105179130 B CN 105179130B CN 201510736923 A CN201510736923 A CN 201510736923A CN 105179130 B CN105179130 B CN 105179130B
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- camshaft
- signal sensor
- signal
- sensor
- pump housing
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Abstract
A kind of device for preventing camshaft-signal sensor from failing disclosed by the invention, it is applied in the high-pressure oil pump of fuel injection system, including the pump housing, camshaft, signal panels and camshaft-signal sensor, the first end of camshaft is by clutch shaft bearing and bearing cap support installed in the first side of the pump housing, by second bearing support installed in the second side of the pump housing, its signal panels is arranged on the second end of camshaft and positioned at the outside of the second bearing at second end of camshaft；Also include one and be arranged on the camshaft-signal sensor protection device protected on the side of the pump housing second and to camshaft-signal sensor; camshaft-signal sensor is arranged on by fastener on the outer surface of camshaft-signal sensor protection device; the cam sensor is completely cut off with the lubricating oil with micro- metallic particles, prevent micro- metallic particles in camshaft-signal sensor magnetic absorption lubricating oil and cause camshaft-signal sensor failure jitter or the failure without signal occur.The failure of camshaft-signal sensor failure can effectively drop.
Description
Technical field
The present invention relates to a kind of high-pressure oil pump technical field of diesel engine, more particularly to a kind of fuel oil that is applied to sprays
The device for preventing camshaft-signal sensor failure in the high-pressure oil pump of system.
Background technology
Existing camshaft-signal sensor is often directly installed on the pump housing, and also overall processing is on camshaft for signal panels, this peace
Dress allows camshaft-signal sensor to be immersed in the lubricating oil with micro- metallic particles, and metallic particles is by camshaft-signal sensor magnetic absorption
Can make camshaft-signal sensor failure there is jitter or no signal, cause vehicle it is powerless, discharge exceeded, unstable idle speed
It can not be worked etc. failure even fuel injection system.
The content of the invention
The technical problems to be solved by the invention are directed to camshaft caused by existing camshaft-signal sensor mounting means and passed
There is jitter or provides a kind of hydraulic oil applied to fuel injection system the problem of without signal in sensor failure
The device for preventing camshaft-signal sensor from failing in pump.The failure of camshaft-signal sensor failure can effectively drop in the invention.
The technical problems to be solved by the invention can be achieved through the following technical solutions：
A kind of device for preventing camshaft-signal sensor from failing, it is applied in the high-pressure oil pump of fuel injection system, including
The pump housing, camshaft, signal panels and camshaft-signal sensor, the first end of the camshaft pass through clutch shaft bearing and bearing cap support peace
Mounted in the first side of the pump housing, the second end of the camshaft is arranged on the second of the pump housing by second bearing support
Side, it is characterised in that the signal panels are arranged on the second end of the camshaft and positioned at the outside of the second bearing；Also wrap
Include one and be arranged on the camshaft-signal sensor protection device protected on the side of the pump housing second and to the camshaft-signal sensor,
The camshaft-signal sensor is arranged on by fastener on the outer surface of the camshaft-signal sensor protection device, makes the cam
Axle sensor completely cuts off with the lubricating oil with micro- metallic particles.
In a preferred embodiment of the invention, the camshaft-signal sensor protection device includes：
One is on the side of the pump housing second and convex between the second bearing and the signal panels by fastener
Axle sensor erection support, the lateral surface of the camshaft-signal sensor erection support first end face and the side of the pump housing second it
Between be configured with first seal, between the inner ring of the camshaft-signal sensor erection support and the external diameter at the end of the camshaft second
It is configured with second seal；The camshaft-signal sensor erection support also includes integrally manufactured with its and sensed from the camshaft
The camshaft-signal sensor protective cover that device erection support stretches out with the second end face that first end face deviates from, the camshaft sensing
Device protective cover covers on the periphery of the signal panels, and the camshaft-signal sensor is arranged on the camshaft-signal sensor by fastener
On protective cover outer peripheral face；
One is fixed on the protection cap in the camshaft-signal sensor protective cover distal end faces, the protection cap by fastener
The 3rd seal is configured between the camshaft-signal sensor protective cover distal end faces.
In a preferred embodiment of the invention, set in the first end face of the camshaft-signal sensor erection support
There is first seal to be embedded in annular groove, the first seal is embedded in the first seal insertion annular groove.
As a result of technical scheme as above, the present invention can prevent camshaft-signal sensor because of micro- metal in lubricating oil
Grain absorption and cause camshaft-signal sensor failure there is jitter or the failure without signal.
Brief description of the drawings
Fig. 1 is the front view of apparatus of the present invention
Fig. 2 is Fig. 1 right view.
Fig. 3 is Fig. 1 centre section structural representation..
Fig. 4 is Fig. 1 top view.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Referring to Fig. 1 to Fig. 4, the high-pressure oil pump applied to fuel injection system that is provided in figure prevents camshaft-signal sensor
The device of failure, including the pump housing 1, cam 14, signal panels 10, the camshaft-signal sensor of camshaft-signal sensor 18 and one protection dress
Put.
One end of camshaft 14 by bearing 13 and bearing cap 15 support installed in the pump housing 1 side, camshaft 14 it is another
Opposite side of the one end by the support of bearing 13 installed in the pump housing 1, signal panels 10 are arranged on camshaft by screw 16 and pad 17
14 other end and the outside for being located at bearing 13.The signal panels 10 are used to identify the signal of camshaft-signal sensor 18.
The camshaft-signal sensor protection device of the present invention includes one and is arranged on the opposite side of the pump housing 1 using pad 3 and screw 4
The upper and camshaft-signal sensor erection support 2 between bearing 13 and signal panels 10, in camshaft-signal sensor erection support 2
Seal 12 is configured between the lateral surface of inner face and the opposite side of the pump housing 1, the configuration mode of seal 12 is：Passed in camshaft
Seal insertion annular groove is provided with the inner face of sensor erection support 2, seal 12 is embedded in seal insertion annular groove.It is logical
Crossing seal 12 prevents that the installation because of camshaft-signal sensor erection support 2 from causing oil leakage to the outside of the pump housing 1, to signal
Disk 10 and camshaft-signal sensor 18 pollute, and influence their measurement accuracy.
Seal 11 is configured between the inner ring of camshaft-signal sensor erection support 2 and the external diameter of the other end of camshaft 14,
The outer ring of seal 11 is fixed on the inner ring of camshaft-signal sensor erection support 2, when camshaft 14 rotates, seal
Interference be present between 11 inner rings and camshaft 14, oil leakage is prevented to the outside of the pump housing 1 by seal 11, to signal panels
10 and camshaft-signal sensor 18 pollute, influence their measurement accuracy.
Camshaft-signal sensor erection support 2 also includes integrally manufactured with its and from the outer end of camshaft-signal sensor erection support 2
The camshaft-signal sensor protective cover 2a extended outwardly, camshaft-signal sensor protective cover 2a covers on the periphery of signal panels 10, convex
Camshaft-signal sensor mounting hole at any angle is provided with axle sensor protective cover 2a, camshaft-signal sensor 18 is fastened on convex
It is arranged in axle sensor mounting hole and by pad 17, screw 16 on camshaft-signal sensor protective cover 2a outer peripheral faces, makes it
Steady operation；A protection cap 6 is provided with by screw 7 in camshaft-signal sensor protective cover 2a distal end faces, protection cap 6 with it is convex
Seal 5 is configured between axle sensor protective cover 2a distal end faces, the seal 5 is mainly used in sealing injection pump, prevents
External liquids thing is entered in camshaft-signal sensor protective cover 2a.
The present invention separates signal panels from the pump housing, and camshaft-signal sensor is arranged on into independent camshaft and passed
On the camshaft-signal sensor protective cover 2a of sensor erection support 2, the one end of camshaft-signal sensor erection support 2 is using seal profit
Lubricating oil and the isolation of camshaft-signal sensor working space, other end seal make it isolate with the liquid object in the external world, allow camshaft
Working sensor one sealing space, do not influenceed by lubricating oil and extraneous liquid object.Prevented by this apparatus and method
Camshaft-signal sensor causes camshaft-signal sensor failure jitter occur because of the absorption of micro- metallic particles in lubricating oil
Or the failure without signal.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The structural principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, this
A little changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention has appended claims
And its equivalent defines.
Claims (2)
1. a kind of device for preventing camshaft-signal sensor from failing, it is applied in the high-pressure oil pump of fuel injection system, including pump
Body, camshaft, signal panels and camshaft-signal sensor, the first end of the camshaft pass through clutch shaft bearing and bearing cap support installation
In the first side of the pump housing, the second end of the camshaft is arranged on the second side of the pump housing by second bearing support,
Characterized in that, the signal panels are arranged on the second end of the camshaft and positioned at the outsides of the second bearing；Also include
One is arranged on the camshaft-signal sensor protection device protected on the side of the pump housing second and to the camshaft-signal sensor, institute
State camshaft-signal sensor to be arranged on by fastener on the outer surface of the camshaft-signal sensor protection device, make the camshaft
Sensor completely cuts off with the lubricating oil with micro- metallic particles；
The camshaft-signal sensor protection device includes：
One is arranged on the camshaft on the side of the pump housing second and between the second bearing and the signal panels by fastener
Match somebody with somebody between the lateral surface of sensor erection support, the camshaft-signal sensor erection support first end face and the side of the pump housing second
First seal is equipped with, is configured between the inner ring of the camshaft-signal sensor erection support and the external diameter at the end of the camshaft second
There is second seal；The camshaft-signal sensor erection support also includes integrally manufactured with its and pacified from the camshaft-signal sensor
The camshaft-signal sensor protective cover that dress bearing stretches out with the second end face that first end face deviates from, the camshaft-signal sensor are protected
Shield covers on the periphery of the signal panels, and the camshaft-signal sensor is protected by fastener installed in the camshaft-signal sensor
On cover outer peripheral face；
One is fixed on the protection cap in the camshaft-signal sensor protective cover distal end faces, the protection cap and institute by fastener
State and be configured with the 3rd seal between camshaft-signal sensor protective cover distal end faces.
2. a kind of device for preventing camshaft-signal sensor from failing as claimed in claim 1, it is characterised in that in the camshaft
First seal insertion annular groove, the first seal insertion described first are provided with the first end face of sensor erection support
In seal insertion annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510736923.8A CN105179130B (en) | 2015-11-03 | 2015-11-03 | A kind of device for preventing camshaft-signal sensor from failing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510736923.8A CN105179130B (en) | 2015-11-03 | 2015-11-03 | A kind of device for preventing camshaft-signal sensor from failing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105179130A CN105179130A (en) | 2015-12-23 |
| CN105179130B true CN105179130B (en) | 2018-01-05 |
Family
ID=54901471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510736923.8A Active CN105179130B (en) | 2015-11-03 | 2015-11-03 | A kind of device for preventing camshaft-signal sensor from failing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105179130B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2723713Y (en) * | 2004-08-11 | 2005-09-07 | 中国第一汽车集团公司 | Single pump type synthetic in-line pump |
| CN2747374Y (en) * | 2004-12-03 | 2005-12-21 | 一拖（洛阳）燃油喷射有限公司 | Multi-cylinder fuel injection pump with electric controlled monomer combined structure |
| CN201896678U (en) * | 2010-12-09 | 2011-07-13 | 徐飞 | Forklift liquefied gas engine with electromagnetic type sensor bracket |
| CN201924981U (en) * | 2011-01-14 | 2011-08-10 | 中国重汽集团济南动力有限公司 | Cam timing signal device for engine |
| CN202370601U (en) * | 2011-12-23 | 2012-08-08 | 重庆潍柴发动机厂 | Signal disk device |
| CN102828828A (en) * | 2012-09-12 | 2012-12-19 | 嘉兴市特欧燃气动力设备有限公司 | Signal generating device of automobile engine |
| CN205089510U (en) * | 2015-11-03 | 2016-03-16 | 南岳电控(衡阳)工业技术有限公司 | Device for preventing camshaft sensor became invalid |
-
2015
- 2015-11-03 CN CN201510736923.8A patent/CN105179130B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2723713Y (en) * | 2004-08-11 | 2005-09-07 | 中国第一汽车集团公司 | Single pump type synthetic in-line pump |
| CN2747374Y (en) * | 2004-12-03 | 2005-12-21 | 一拖（洛阳）燃油喷射有限公司 | Multi-cylinder fuel injection pump with electric controlled monomer combined structure |
| CN201896678U (en) * | 2010-12-09 | 2011-07-13 | 徐飞 | Forklift liquefied gas engine with electromagnetic type sensor bracket |
| CN201924981U (en) * | 2011-01-14 | 2011-08-10 | 中国重汽集团济南动力有限公司 | Cam timing signal device for engine |
| CN202370601U (en) * | 2011-12-23 | 2012-08-08 | 重庆潍柴发动机厂 | Signal disk device |
| CN102828828A (en) * | 2012-09-12 | 2012-12-19 | 嘉兴市特欧燃气动力设备有限公司 | Signal generating device of automobile engine |
| CN205089510U (en) * | 2015-11-03 | 2016-03-16 | 南岳电控(衡阳)工业技术有限公司 | Device for preventing camshaft sensor became invalid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105179130A (en) | 2015-12-23 |
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Address after: 421007 Hunan city in Hengyang Province, Yanfeng District Baishazhou box No. 10 Applicant after: The electronic (Hengyang) industrial technology Limited by Share Ltd Address before: 421007 Hunan city in Hengyang Province, Yanfeng District Baishazhou box No. 10 Applicant before: Nanyue Electronic Control (Hengyang) Industry Technology Co., Ltd. |
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