CN205089511U - Take effluent oil recovery's injection pump - Google Patents
Take effluent oil recovery's injection pump Download PDFInfo
- Publication number
- CN205089511U CN205089511U CN201520906026.2U CN201520906026U CN205089511U CN 205089511 U CN205089511 U CN 205089511U CN 201520906026 U CN201520906026 U CN 201520906026U CN 205089511 U CN205089511 U CN 205089511U
- Authority
- CN
- China
- Prior art keywords
- oil
- plunger
- injection pump
- annular groove
- oil recovery
- 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
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses a take effluent oil recovery's injection pump. This injection pump includes: the plunger bushing, it has the compression inner chamber to set up the sunction inlet with this compression inner chamber intercommunication, the compression inner chamber communicates with each other through the oil duct in this sunction inlet and the pump body, the plunger, the setting that it can reciprocating motion is in intracavity in the compression of plunger bushing, the plunger corresponds the tipper has been seted up to the sunction inlet, first annular, it corresponds the plunger is seted up in the plunger bushing to communicate with the oil return bolt, and the second annular, it is seted up the below of the first annular in the plunger bushing to communicate with the effluent oil recovery bolt, first annular and second annular form the oily structure of double -deck collection of taking effluent oil recovery. This injection pump has increased the second annular through former first annular below on the plunger bushing for collect through the second annular after diesel oil leaks from first annular, the diesel oil that the current injection pump of solution takes place in the use leaks.
Description
Technical field
The utility model relates to Injection Pump field, particularly a kind of Injection Pump with oil recovery.
Background technique
At present, the plunger bushing of existing Injection Pump only has the first annular groove together, the diesel oil inside first annular groove passes through inclined hole oil return to oil return bolt place.
But time this Injection Pump is applied in higher pump end pressure, the diesel oil inside first annular groove will by the clearance leakage between plunger and plunger bushing in machine oil chamber.If diesel oil occurs to be leaked in machine oil, have following consequence: a large amount of wastes 1) causing diesel oil; 2) after mixing diesel oil in machine oil, the greasy property of machine oil is reduced, cause the major moving parts of motor if the wearing and tearing of the parts such as bent axle, camshaft, main axle bush, connecting rod bearing shell are until scrap, cause motor to scrap.
The information being disclosed in this background technique part is only intended to increase the understanding to general background of the present utility model, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Model utility content
The purpose of this utility model is the Injection Pump providing a kind of simple and reasonable band oil recovery, the Injection Pump of this band oil recovery by adding the second annular groove below former first annular groove on plunger bushing, be connected to oil recovery bolt place by oil duct simultaneously, collect through the second annular groove after diesel oil is leaked from first annular groove and then get back to sump oil oil return bolt through skewed slot and connect oil pipe again and collect.Solve the diesel oil leakage that existing Injection Pump in use occurs.
For achieving the above object, provide a kind of Injection Pump with oil recovery according to the utility model, comprising: plunger bushing, it has compression inner chamber, and offering the suction port with this compression inner space, described compression inner chamber is communicated with the oil duct in the pump housing by this suction port; Plunger, it can reciprocatingly be arranged in the compression inner chamber of described plunger bushing, and the corresponding described suction port of described plunger offers tipper; First annular groove, its corresponding described plunger is opened in plunger bushing, and is communicated with oil return bolt; And second annular groove, it is opened in the below of the first annular groove in described plunger bushing, and is communicated with oil recovery bolt, and described first annular groove and the second annular groove form the double-deck oil collecting structure of band oil recovery.
Preferably, in technique scheme, the first annular groove is communicated with described oil return bolt by inclined hole.
Preferably, in technique scheme, the second annular groove is connected to described oil recovery bolt by oil duct.
Preferably, in technique scheme, oil return bolt is connected with return tube.
Preferably, in technique scheme, oil recovery bolt is connected with oil recovery oil pipe.
Compared with prior art, the utility model has following beneficial effect: the Injection Pump of this band oil recovery by adding the second annular groove below former first annular groove on plunger bushing, be connected to oil recovery bolt place by oil duct simultaneously, collect through the second annular groove after diesel oil is leaked from first annular groove and then get back to sump oil oil return bolt through skewed slot and connect oil pipe again and collect.Solve the diesel oil leakage that existing Injection Pump in use occurs.
Accompanying drawing explanation
Fig. 1 is the structural representation of the Injection Pump of band oil recovery of the present utility model.
Fig. 2 is the sectional structure schematic diagram in the A-A direction of Fig. 1.
Fig. 3 is the sectional structure schematic diagram in the B-B direction of Fig. 2.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model not by the restriction of embodiment.
Clearly represent unless otherwise other, otherwise in whole specification and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or constituent element, and do not get rid of other element or other constituent element.
Injection Pump is an important component part on diesel engine of vehicle.Injection pump assembly is normally installed together the entirety formed by the parts such as Injection Pump, speed regulator.Wherein speed regulator ensures the low-speed running of diesel engine and the restriction to maximum speed, guarantees the parts keeping certain relation between emitted dose and rotating speed.Injection Pump is then the most important parts of diesel engine, is regarded as " heart " parts of diesel engine, and it can make whole diesel engine work not normal once go wrong.
The vital part of Injection Pump is plunger, liken if done with the injector that hospital is common, so moveable stopper is just called plunger, syringe is just called plunger bushing, suppose that inside pin letter, install a spring heads on plunger at one end, plunger the other end contact camshaft, circles when camshaft returns, plunger will move up and down once in plunger bushing, the basic exercise mode of Here it is injection pump plunger.
Very accurate auxiliary equipment processed by plunger and plunger bushing.Plunger has one tipper with it, plunger bushing there is aperture be called suction port, this suction port diesel oil abrim, when plunger tipper is facing to suction port, diesel oil enters in plunger bushing, plunger by camshaft top to certain altitude time, plunger tipper and suction port stagger, suction port is closed, diesel oil can not be sucked can not be forced out, compressing diesel oil when plunger continues to rise, diesel pressure will back down one-way valve to a certain extent and swarm out and enter oil nozzle, then enters combustion chamber of air cylinder from oil nozzle.
As shown in Figure 1 to Figure 3, concrete structure according to the Injection Pump 9 of the band oil recovery of the utility model embodiment comprises: plunger bushing 1 and the plunger 2 be movably arranged in this plunger bushing 1, and corresponding plunger 2 is opened in the first annular groove 3 and the second annular groove 4 in plunger bushing 1.Wherein, the first annular groove 3 is communicated with oil return bolt by inclined hole; Second annular groove 4 is connected to oil recovery bolt 5 place by the oil duct offered separately, and such first annular groove 3 and the second annular groove 4 define the double-deck oil collecting structure of band oil recovery.When plunger bushing only having one first annular groove 3, the diesel oil inside first annular groove passes through inclined hole oil return to oil return bolt place.But time this Injection Pump is applied in higher pump end pressure, diesel oil inside first annular groove will by the clearance leakage between plunger and plunger bushing in machine oil chamber, cause a large amount of wastes of diesel oil, and after mixing diesel oil in machine oil, the greasy property of machine oil is reduced, cause the major moving parts of motor if the wearing and tearing of the parts such as bent axle, camshaft, main axle bush, connecting rod bearing shell are until scrap, cause motor to scrap.And the Injection Pump of this band oil recovery by adding the second annular groove 4 on plunger bushing below former first annular groove 3, be connected to oil recovery bolt place by oil duct simultaneously, collect through the second annular groove after diesel oil is leaked from first annular groove and then get back to sump oil oil return bolt through skewed slot and connect oil pipe again and collect.Solve the diesel oil leakage that existing Injection Pump in use occurs.
Specifically, as shown in Figure 1 to Figure 3, plunger bushing 1 has compression inner chamber, and offers the suction port with this compression inner space, and suction port is diesel oil abrim.Plunger 2 can reciprocatingly be arranged in plunger bushing, the oil suction of Injection Pump and force feed, has been come by the to-and-fro motion of plunger in plunger bushing.Plunger 2 offers one tipper, this is when plunger tipper is facing to suction port, the compression inner chamber of plunger bushing communicates with the oil duct in the pump housing, diesel oil enters in plunger bushing and fills grease chamber rapidly, plunger by camshaft top to certain altitude time, plunger tipper and suction port stagger, suction port is closed, diesel oil can not be sucked can not be forced out, compressing diesel oil when plunger continues to rise, diesel pressure will back down one-way valve to a certain extent and swarm out and enter oil nozzle, then enters combustion chamber of air cylinder from oil nozzle.
When on cam top to the roller of roller body, plunger just rises.Move upward between from plunger oilhole blocked by its upper end face before till.Within this period of time, due to the motion of plunger, fuel oil is extruded from grease chamber, flows to oil duct.So this section of lift is called pretravel.When oilhole blocks by plunger, just start force feed process.Plunger is up, and in grease chamber, oil pressure sharply raises.When pressure exceedes spring force and the top oil pressure of outlet valve, just back down outlet valve, oil sprayer delivered to by fuel oil press-in oil pipe.
Oil inlet hole on plunger bushing is called the theoretical commencement of fuel supply by the moment that its upper end face is blocked completely.
When plunger continues to move upward, fuel feeding also continues always, when force feed process lasts gets out of the way plunger bushing spill port to the spiral hypotenuse on plunger, when oilhole one is opened, high pressure oil flows back to the oil duct in the pump housing from the cannelure of grease chamber through plunger and the spill port on plunger bushing.Now the oil pressure of plunger bushing grease chamber reduces rapidly, and the effect of outlet valve oil pressure in spring and high-pressure oil pipe is fallen back valve seat, and oil sprayer stops oil spout immediately.Although at this moment plunger still continues up, fuel feeding stops.
As shown in Figure 3, the corresponding plunger 2 of the first annular groove 3 is opened in plunger bushing 1, and compress diesel oil in inner chamber for collecting plunger bushing 1, it is communicated with oil return bolt 6 by inclined hole 7, the diesel oil inside first annular groove by inclined hole oil return to oil return bolt place.But time this Injection Pump is applied in higher pump end pressure, diesel oil inside first annular groove will by the clearance leakage between plunger and plunger bushing in machine oil chamber, cause a large amount of wastes of diesel oil, and after mixing diesel oil in machine oil, the greasy property of machine oil is reduced, cause the major moving parts of motor if the wearing and tearing of the parts such as bent axle, camshaft, main axle bush, connecting rod bearing shell are until scrap, cause motor to scrap.
As shown in Figure 2, second annular groove 4 is opened in the below of the first annular groove 3 in plunger bushing 1, second annular groove 4 is connected to oil recovery bolt 5 place by the oil duct 8 offered separately, for collecting the diesel oil leaked from first annular groove, such first annular groove 3 and the second annular groove 4 define the double-deck oil collecting structure of band oil recovery.And the Injection Pump of this band oil recovery by adding the second annular groove 4 on plunger bushing below former first annular groove 3, be connected to oil recovery bolt place by oil duct simultaneously, collect through the second annular groove after diesel oil is leaked from first annular groove and then get back to sump oil oil return bolt through skewed slot and connect oil pipe again and collect.Solve the diesel oil leakage that existing Injection Pump in use occurs.
To sum up, the Injection Pump of this band oil recovery by adding the second annular groove below former first annular groove on plunger bushing, be connected to oil recovery bolt place by oil duct simultaneously, collect through the second annular groove after diesel oil is leaked from first annular groove and then get back to sump oil oil return bolt through skewed slot and connect oil pipe again and collect.Solve the diesel oil leakage that existing Injection Pump in use occurs.
The aforementioned description to concrete exemplary of the present utility model is to illustrate and the object of illustration.These descriptions not want the utility model to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present utility model and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present utility model and various different selection and change.Scope of the present utility model is intended to limited by claims and equivalents thereof.
Claims (5)
1. the Injection Pump with oil recovery, is characterized in that, comprising:
Plunger bushing, it has compression inner chamber, and offers the suction port with this compression inner space, and described compression inner chamber is communicated with the oil duct in the pump housing by this suction port;
Plunger, it can reciprocatingly be arranged in the compression inner chamber of described plunger bushing, and the corresponding described suction port of described plunger offers tipper;
First annular groove, its corresponding described plunger is opened in plunger bushing, and is communicated with oil return bolt; And
Second annular groove, it is opened in the below of the first annular groove in described plunger bushing, and is communicated with oil recovery bolt, and described first annular groove and the second annular groove form the double-deck oil collecting structure of band oil recovery.
2. the Injection Pump of band oil recovery according to claim 1, is characterized in that, described first annular groove is communicated with described oil return bolt by inclined hole.
3. the Injection Pump of band oil recovery according to claim 1, is characterized in that, described second annular groove is connected to described oil recovery bolt by oil duct.
4. the Injection Pump of band oil recovery according to claim 1, is characterized in that, described oil return bolt is connected with return tube.
5. the Injection Pump of band oil recovery according to claim 1, is characterized in that, described oil recovery bolt is connected with oil recovery oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520906026.2U CN205089511U (en) | 2015-11-13 | 2015-11-13 | Take effluent oil recovery's injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520906026.2U CN205089511U (en) | 2015-11-13 | 2015-11-13 | Take effluent oil recovery's injection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205089511U true CN205089511U (en) | 2016-03-16 |
Family
ID=55480204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520906026.2U Expired - Fee Related CN205089511U (en) | 2015-11-13 | 2015-11-13 | Take effluent oil recovery's injection pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205089511U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275692A (en) * | 2015-11-13 | 2016-01-27 | 广西玉柴机器股份有限公司 | Oil injection pump with effluent oil recovery function |
-
2015
- 2015-11-13 CN CN201520906026.2U patent/CN205089511U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275692A (en) * | 2015-11-13 | 2016-01-27 | 广西玉柴机器股份有限公司 | Oil injection pump with effluent oil recovery function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE112011105591B4 (en) | Fuel pump and fuel delivery system for internal combustion engine | |
| DE102012202720A1 (en) | high pressure pump | |
| DE102012218552B4 (en) | pump | |
| DE102010039207A1 (en) | Diesel fuel injection system i.e. common-rail injection system, for self-activating combustion engine, has pump with pump casing, and relief valve whose control side comprising plunger space is arranged between roller shaft and pump piston | |
| CN205089511U (en) | Take effluent oil recovery's injection pump | |
| CN104061099A (en) | Energy-saving engine fuel injection pump plunger | |
| DE102013225418A1 (en) | Method for operating a high-pressure fuel pump of a fuel injection device of an internal combustion engine | |
| DE102010039211A1 (en) | Fuel injection system for internal combustion engine, has high-pressure pump comprising working area covered by pump cylinder head, where fuel is compressed in working area by pump piston actuated over roller plunger of pump camshaft | |
| GB2028921A (en) | Fuel-supply Arrangement | |
| CN105275692A (en) | Oil injection pump with effluent oil recovery function | |
| DE102009002132A1 (en) | high pressure pump | |
| CN203962260U (en) | Energy-saving injection pump of engine plunger | |
| EP1363016A3 (en) | Fuel pump | |
| CN208918731U (en) | Diesel engine post rod mechanism with oil-scraping ring | |
| CN204436778U (en) | Variable-displacement piston type fuel supply pump and variable-flow low-pressure oil supply device | |
| CN206158941U (en) | High -efficient electrical plunger pump system that heavily blocks driver's cabin upset control mechanism | |
| DE60309145T2 (en) | Drive arrangement for a pump | |
| EP1275843A2 (en) | Internal combustion engine for motor vehicle | |
| CN212406924U (en) | Novel pump cover of fuel injection pump | |
| CN203962261U (en) | A kind of diesel injection pump | |
| CN207777005U (en) | A kind of diesel injection system | |
| DE102013204355A1 (en) | Pump, in particular fuel pump for an internal combustion engine | |
| CN205299034U (en) | Electronic high -pressure lubricating arrangement | |
| CN205823508U (en) | Plunger displacement pump and high pressure fuel pump | |
| DE102011076015A1 (en) | high pressure pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 Termination date: 20201113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |