CN2409345Y - Electro-controlled valve for injection pump of diesel engine - Google Patents
Electro-controlled valve for injection pump of diesel engine Download PDFInfo
- Publication number
- CN2409345Y CN2409345Y CN 00210922 CN00210922U CN2409345Y CN 2409345 Y CN2409345 Y CN 2409345Y CN 00210922 CN00210922 CN 00210922 CN 00210922 U CN00210922 U CN 00210922U CN 2409345 Y CN2409345 Y CN 2409345Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- hole
- electromagnetic valve
- injection pump
- 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 - Fee Related
Links
- 238000002347 injection Methods 0.000 title claims abstract description 23
- 239000007924 injection Substances 0.000 title claims abstract description 23
- 239000000446 fuel Substances 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000003754 machining Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 15
- 239000000295 fuel oil Substances 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model relates to an electrical controlled valve of a fuel injection pump used for a high-power diesel in fuel electronic-controlled injection, which is composed of an electromagnetic valve and a hydraulic control valve, the electromagnetic valve comprises an electromagnetic valve body, an electromagnetic valve core in holes of the electromagnetic valve body, and an electromagnet on one end of the electromagnetic valve core. An oil inlet hole, an oil outlet hole, and an oil return hole are arranged on the electromagnetic valve body, the hydraulic control valve comprises a connecting block and a valve body in a hole of the hydraulic control valve, a valve core is arranged in a hole of the valve body, an oil outlet and an oil drain hole are arranged on the side wall of the valve body and the connecting block, an oil inlet communicated with a high-pressure fuel pump and the oil outlet hole is arranged on the connecting block, and a cover is arranged on the lower end of the connecting block. The electrical controlled valve of the fuel injection pump has the advantage of low requirements of machining accuracy, so production cost is reduced.
Description
The utility model relates to a kind of diesel injection pump electrically-controlled valve, is particularly useful for the electric-controlled injection of high-power diesel engine fuel oil.
In the electric-controlling injection system of modern high-power diesel engine fuel oil, external normal employing electromagnet directly drives hydraulic control valve and controls Injection Pump, and for example the joint-track type oil sprayer of the Robert Bosh company of Germany manufacturing adopts this control mode exactly.Since high-power diesel engine in the course of the work need be in moment the fuel oil to in-cylinder injection high pressure, big flow, so the requirement on machining accuracy to hydraulic control valve is very high, the processing of the electromagnet that the driving hydraulic control valve is used is also very complicated, and this will certainly increase the manufacture cost of electrically-controlled valve.
The new diesel injection pump electrically-controlled valve that the utility model relates to, its purpose is exactly to reduce the manufacture cost of the electrically-controlled valve of Injection Pump.
The diesel injection pump electrically-controlled valve that the utility model relates to, form by solenoid valve and hydraulic control valve two-part, solenoid valve wherein comprises electromagnetic valve body and is installed in the electromagnetic valve core in this solenoid valve body opening and is fixed on electromagnet on this electromagnetic valve core one end, have on the electromagnetic valve body into, oil outlet and spill port: hydraulic control valve wherein comprises contiguous block, be installed in the valve body in this contiguous block hole, the spool that its upper end is communicated with oil outlet on the electromagnetic valve body is housed in this valve body hole, on the common sidewall that constitutes of contiguous block and valve body, have oil outlet and the draining hole that is communicated with Injection Pump, on contiguous block, have the oil inlet hole that is communicated with high pressure fuel pump and oil outlet, lid is housed in the lower end of described contiguous block.
The diesel injection pump electrically-controlled valve that the utility model relates to, through evidence, control the hydraulic control valve of high pressure, big flow owing to adopt the solenoid valve of small flow, low-pressure, control Injection Pump with hydraulic control valve again, can reduce the machining accuracy of hydraulic control valve, simultaneously also can reduce the processed complex degree of electromagnet, thereby can reduce the manufacture cost of electrically-controlled valve.
Fig. 1 is the erection drawing of the diesel injection pump electrically-controlled valve that relates to of the utility model.
Now details are as follows to the embodiment of the related diesel injection pump electrically-controlled valve of the utility model in conjunction with the accompanying drawings:
As shown in Figure 1, this electrically-controlled valve is made up of solenoid valve and hydraulic control valve two-part, solenoid valve wherein comprises electromagnetic valve body 7 and is installed in the electromagnetic valve core 5 in this solenoid valve body opening and is fixed on electromagnet 6 on this electromagnetic valve core one end that electromagnetic valve body has into and out of oilhole B and C and spill port A in last; Hydraulic control valve wherein comprises contiguous block 2, be installed in the valve body 3 in this contiguous block hole, the spool 4 that its upper end is communicated with oil outlet C on the electromagnetic valve body is housed in this valve body hole, on contiguous block 2 and the valve body 3 common sidewalls that constitute, have oil outlet D and the draining hole F that is communicated with Injection Pump, on contiguous block 2, have the oil inlet hole E that is communicated with high pressure fuel pump and oil outlet D, be equipped with in the lower end of described contiguous block 2 and cover 1.
In brief, the diesel injection pump electrically-controlled valve that the utility model relates to, be exactly with bi-bit bi-pass hydraulic control valve of a two-position two-way solenoid valve control, when the electromagnet 6 of solenoid valve is switched on, the oil inlet hole B of solenoid valve is communicated with oil outlet C, and hydraulic oil enters the epicoele of hydraulic control valve core 4, and this spool is moved down, cut off the oil outlet D of hydraulic control valve and the path of draining hole F, this moment, the fuel oil from fuel pump entered Injection Pump by oil inlet hole E and oil outlet D.
Claims (1)
1. diesel injection pump electrically-controlled valve, it is characterized in that: this electrically-controlled valve is made up of solenoid valve and hydraulic control valve two-part, solenoid valve wherein comprises electromagnetic valve body (7) and is installed in the electromagnetic valve core (5) in this solenoid valve body opening and is fixed on electromagnet (6) on this electromagnetic valve core one end, has into and out of oilhole (B) on the electromagnetic valve body (7) and (C) and spill port (A); Hydraulic control valve wherein comprises contiguous block (2), be installed in the valve body (3) in this contiguous block hole, the spool (4) that its upper end is communicated with oil outlet (C) on the electromagnetic valve body is housed in this valve body hole, on the common sidewall that constitutes of contiguous block (2) and valve body (3), have oil outlet (D) and draining hole (F) that is communicated with Injection Pump, on contiguous block (2), have the oil inlet hole (E) that is communicated with high pressure fuel pump and oil outlet (D), lid (1) is housed in the lower end of described contiguous block (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00210922 CN2409345Y (en) | 2000-02-23 | 2000-02-23 | Electro-controlled valve for injection pump of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00210922 CN2409345Y (en) | 2000-02-23 | 2000-02-23 | Electro-controlled valve for injection pump of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2409345Y true CN2409345Y (en) | 2000-12-06 |
Family
ID=33577711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00210922 Expired - Fee Related CN2409345Y (en) | 2000-02-23 | 2000-02-23 | Electro-controlled valve for injection pump of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2409345Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1317501C (en) * | 2004-04-16 | 2007-05-23 | 清华大学 | Electromagnetic valve drive circuit for engine |
| CN100383375C (en) * | 2001-06-02 | 2008-04-23 | 彭光斌 | Electric control high-pressure fuel injection pump |
-
2000
- 2000-02-23 CN CN 00210922 patent/CN2409345Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383375C (en) * | 2001-06-02 | 2008-04-23 | 彭光斌 | Electric control high-pressure fuel injection pump |
| CN1317501C (en) * | 2004-04-16 | 2007-05-23 | 清华大学 | Electromagnetic valve drive circuit for engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |