CN2351566Y - Antioverdriving device for diesel engine - Google Patents
Antioverdriving device for diesel engine Download PDFInfo
- Publication number
- CN2351566Y CN2351566Y CN 98238433 CN98238433U CN2351566Y CN 2351566 Y CN2351566 Y CN 2351566Y CN 98238433 CN98238433 CN 98238433 CN 98238433 U CN98238433 U CN 98238433U CN 2351566 Y CN2351566 Y CN 2351566Y
- Authority
- CN
- China
- Prior art keywords
- diesel engine
- valve
- pipeline
- electric control
- utility
- 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
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- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The utility model relates to an antioverdriving device for a diesel engine. The oil supply pipeline of a diesel engine is provided with an electric control reversal valve V-[B], an electric control switch valve V-[C] and V-[D] an electric control gas inlet valve V-[A] and corresponding pipelines. The utility model has simple structure and is efficient to inhibit the overdriving swiftly by changing the oil-feeding return circuit to realize the reverse extracting of the fuel oil. The response action is fast, and fuel oil truncation is complete.
Description
The utility model belongs to the Diesel Engine Control technical field, relates in particular to a kind of novel runaway of diesel engine device.
Diesel engine is in when work, can be because faults such as speed regulator fault, injection pump rack are stuck, unexpected unloading cause the unrestricted driving phenomenon that rises of rotating speed, and this driving phenomenon can cause destructive accident.Particularly behind the diesel engine generation driving of internal combustion locomotive,, will cause diesel engine to scrap badly damaged with main generator, exciter, starter-generator, traction motor blower if can not prevent the acceleration of diesel engine speed to rise as early as possible.Both at home and abroad to how preventing that Runaway of Diesel Engine from having done a large amount of research; what homemade east wind 4 locomotives adopted is the limit governor scheme; overspeed trip promptly is set on speed regulator; when diesel engine speed reaches 1120-1150r/min; the limit governor action; by the transverse axis and the left and right control pull rod of rotation control rod system, injection pump rack is pushed to cut-out position rapidly, diesel engine is shut down.The structure more complicated of this limit governor responds slow in one's movements.And in case the injection pump rack stuck phenomenon takes place, it is just inoperative.In addition, even injection pump rack has in time been shifted onto cut-out position, the fuel oil that remains in the oil feed line still can be kept diesel engine speed continuation rising, thus damaging property consequence.
The purpose of this utility model will overcome the deficiency of above-mentioned prior art exactly, provides a kind of simple in structure, response to be swift in motion, to block fuel oil novel diesel machine anti-joy ride device completely.
The purpose of this utility model is achieved in that a kind of runaway of diesel engine device, and an electric control reversing valve V is set on the pipeline 2 that it is characterized in that communicating with diesel engine 6
B, and on the pipeline 1 that fuel tank 7 communicates an electrically switchable grating valve V is set
C, selector valve V
BA port receive fuel pump P and switch valve V by pipeline 4
CBetween pipeline 1 on, one is provided with electrically switchable grating valve V
DAnd the pipeline 3 that communicates with fuel tank 7 is received fuel pump P and selector valve V
BBetween output pipe 2 on, selector valve V
BAnd be provided with an automatically controlled suction valve V on the pipeline between the diesel engine 65
A
Adopt the runaway of diesel engine device of technical solutions of the utility model, simple in structure, the electrically-controlled valve response rapidly, changed oil supply loop after the response immediately, realize the back suction fuel oil, can thoroughly remove the trapped fuel in the oil feed line, the effect of taking out firewood at the bottom of really having reached at the bottom of the still.
Accompanying drawing 1 is the utility model embodiment's a principle schematic.
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.
When diesel engine 6 proper functioning, selector valve V
BPipeline 2 and pipeline 5 are connected, and made pipeline 4 be in blocking state, suction valve V
AWith switch valve V
DBe in closed condition, switch valve V
CBe in on-state.Because the effect of fuel pump, fuel oil 1,2 and 5 is sent to diesel engine 6 by the road by fuel tank 7.When diesel engine generation driving, control gear sends instruction, drives each valve and moves simultaneously: selector valve V
BPipeline 5 and pipeline 4 are connected, pipeline 2 blocking-up; Suction valve V
AWith switch valve V
DOpen; Switch valve V
CClose.Under the effect of fuel pump P, the fuel oil in the pipeline 5 is rapidly by the back suction fuel tank 7 that strile-backs, thereby restrains diesel engine 6 drivings.
Claims (1)
1, a kind of runaway of diesel engine device is provided with an electric control reversing valve V on the pipeline (2) that it is characterized in that communicating with diesel engine (6)
B, and on the pipeline (1) that fuel tank (7) communicates an electrically switchable grating valve V is set
C, selector valve V
BA port receive fuel pump P and switch valve V by pipeline (4)
CBetween pipeline (1) on, one is provided with electrically switchable grating valve V
DAnd the pipeline (3) that communicates with fuel tank (7) is received fuel pump P and selector valve V
BBetween output pipe (2) on, selector valve V
BAnd be provided with an automatically controlled suction valve V on the pipeline (5) between the diesel engine (6)
A
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98238433 CN2351566Y (en) | 1998-07-29 | 1998-07-29 | Antioverdriving device for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98238433 CN2351566Y (en) | 1998-07-29 | 1998-07-29 | Antioverdriving device for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2351566Y true CN2351566Y (en) | 1999-12-01 |
Family
ID=33986017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98238433 Expired - Fee Related CN2351566Y (en) | 1998-07-29 | 1998-07-29 | Antioverdriving device for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2351566Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100410516C (en) * | 2006-10-12 | 2008-08-13 | 宁波中策动力机电集团有限公司 | Diesel engine oil-suction over-speed protection stopping device |
| CN102588133A (en) * | 2012-03-22 | 2012-07-18 | 潍柴动力股份有限公司 | Control method and control system for runaway of diesel engine |
-
1998
- 1998-07-29 CN CN 98238433 patent/CN2351566Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100410516C (en) * | 2006-10-12 | 2008-08-13 | 宁波中策动力机电集团有限公司 | Diesel engine oil-suction over-speed protection stopping device |
| CN102588133A (en) * | 2012-03-22 | 2012-07-18 | 潍柴动力股份有限公司 | Control method and control system for runaway of diesel engine |
| CN102588133B (en) * | 2012-03-22 | 2014-07-30 | 潍柴动力股份有限公司 | Control method and control system for runaway of diesel 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 |