CN108412650A - A kind of oil transfer pump of the automatically controlled injection diesel of single cylinder - Google Patents
A kind of oil transfer pump of the automatically controlled injection diesel of single cylinder Download PDFInfo
- Publication number
- CN108412650A CN108412650A CN201810455132.1A CN201810455132A CN108412650A CN 108412650 A CN108412650 A CN 108412650A CN 201810455132 A CN201810455132 A CN 201810455132A CN 108412650 A CN108412650 A CN 108412650A
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- China
- Prior art keywords
- oil
- pump body
- fuel
- armature spindle
- fuel pump
- Prior art date
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- 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 71
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 239000003921 oil Substances 0.000 claims description 157
- 238000007789 sealing Methods 0.000 claims description 22
- 239000000295 fuel oil Substances 0.000 claims description 20
- 238000005192 partition Methods 0.000 claims description 15
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 3
- 239000010721 machine oil Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 239000010687 lubricating oil Substances 0.000 description 8
- 239000007921 spray Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 239000010761 intermediate fuel oil Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/045—Arrangements for driving rotary positive-displacement pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/20—Rotary pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
- F01M2001/0207—Pressure lubrication using lubricating pumps characterised by the type of pump
- F01M2001/0238—Rotary pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
- F01M2001/0253—Pressure lubrication using lubricating pumps characterised by the pump driving means
- F01M2001/0269—Pressure lubrication using lubricating pumps characterised by the pump driving means driven by the crankshaft
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
- Rotary Pumps (AREA)
Abstract
The present invention discloses a kind of oil transfer pump of the automatically controlled injection diesel of single cylinder, including armature spindle, oil pump body, fuel pump body, and armature spindle is arranged through oil pump body, fuel pump body, oil pump body in the front of armature spindle, and fuel pump body is arranged at the rear portion of armature spindle.The present invention drives two group rotors to work using integrated axle construction, and using single roller bearings armature spindle, has the function of the characteristics of compact-sized, strong, long lifespan, oil transfer pump is equipped with fuel pressure pressure stabilizing mechanism, to establish the fuel pressure in particular range, to meet the economic performance and emission performance demand of electric-controlled injection diesel engine.
Description
Technical field
The present invention relates to oil transportation pump technical fields, are be related to a kind of automatically controlled injection diesel of single cylinder defeated more specifically
Oil pump.
Background technology
Currently, the mechanical engine oil pump and mechanical fuel pump on the automatically controlled injection diesel of domestic single cylinder are with independent part
Form is arranged on a diesel engine, work is driven by two different driving mechanisms, to meet the fuel oil and lubrication of diesel engine
The demand and supply of oil.
Driving mechanism has actuated by cams formula and rotor drive-type, but due to driving mechanism structure complexity, and be independent
Body so that diesel engine it is bulky, structure is not compact, and short life, while also increasing the regular maintenance cost of diesel engine.
Invention content
The purpose of the present invention is to provide a kind of oil transfer pumps of the automatically controlled injection diesel of single cylinder.Oil transfer pump is integrated shaft type
Integrated oil transfer pump, optimizes the supply structure of the machine oil and fuel oil of the automatically controlled injection diesel of single cylinder, so that the body of diesel engine
Product reduces, and can realize the conveying of lubricating oil and the conveying of fuel oil simultaneously, to overcome deficiency of the prior art.
The present invention the technical solution to solve the technical problem is that：A kind of oil transfer pump of the automatically controlled injection diesel of single cylinder, including
Armature spindle, oil pump body further include fuel pump body, and the armature spindle is through the oil pump body, fuel pump body, the lubricating oil pump
Body is arranged in the front of the armature spindle, and the fuel pump body is arranged at the rear portion of the armature spindle.
Partition board in being arranged between the oil pump body and the fuel pump body, the middle centrally disposed axis hole of partition board are described
Oil pump body, middle partition board, fuel pump body sequentially connect, back shroud of the fuel pump body setting for sealing.
The armature spindle front end setting opening is connect with crankshaft of diesel engine, setting annular oil groove, side in the middle part of the armature spindle
Flat block structure, the centrally disposed oil duct of first half of the armature spindle, the oil is arranged in hole, dowel hole, the rotor shaft rear end
Road is communicated with the annular oil groove, side opening.
The oil pump body, fuel pump body use cycloidal type rotor, the internal rotor of lubricating pump of the oil pump body to fix
On the dowel hole, the centrally disposed trepanning of the fuel pump internal rotor of the fuel pump body and described flat piece mating connection.
Bearing bore is set in the fuel pump body, and rolling bearing is arranged in the bearing bore, and the rolling bearing is used to support
The armature spindle.
Oil sealing chamber is set in the fuel pump body, and oil sealing is arranged in the oil sealing chamber, and the bearing bore is adjacent with the oil sealing chamber
It connects.
On the oil sealing with the leak hunting aperture being connected is set on the fuel pump body, the leak hunting aperture extends through the fuel oil
Outside the pump housing.
Pressure stabilizing cavity is also set up in the fuel pump body, pressure stabilizing mechanism is arranged in the pressure stabilizing cavity, and the pressure stabilizing mechanism includes sliding
Dynamic valve, spring, one end setting spring cavity, other end setting central oil passage and the side oil communicated with central oil passage of the slide-valve
Hole.
The first oilhole, the second oilhole, third oilhole, first oilhole and the fuel pump body is arranged in the pressure stabilizing cavity
The oil outlet chamber communicates, and second oilhole, third oilhole are communicated with the oil suction chamber of the fuel pump body.
The spring is arranged in the spring cavity, and the fuel oil with oil pressure enters central oil passage through the first oilhole and pushes institute
Slide-valve is stated, when fuel oil oil pressure reaches certain value, second oilhole is communicated with side oilhole.
The beneficial effects of the invention are as follows：
The present invention drives two group rotors to work using integrated axle construction, and using single roller bearings armature spindle, excellent
The supply structure of the machine oil and fuel oil of the automatically controlled injection diesel of single cylinder is changed so that the volume-diminished of diesel engine is additionally provided with fuel oil
Pressure pressure stabilizing mechanism, to establish the fuel pressure in particular range, to meet economic performance and the row of electric-controlled injection diesel engine
Put performance requirement.
Description of the drawings
Fig. 1 is the installation condition schematic diagram of the embodiment of the present invention.
Fig. 2 is the side view of the embodiment of the present invention.
Fig. 3 is the front view of the embodiment of the present invention.
Fig. 4 is the structural schematic diagram in the faces A-A in the embodiment of the present invention.
Fig. 5 is the structural schematic diagram of oil pump body in the embodiment of the present invention.
Fig. 6 is the structural schematic diagram in the faces oil pump body B-B in the embodiment of the present invention.
Fig. 7 is the structural schematic diagram in the faces oil pump body C-C in the embodiment of the present invention.
Fig. 8 is the side view of the intermediate fuel oil pump housing of the embodiment of the present invention.
Fig. 9 is the structural schematic diagram in the faces intermediate fuel oil pump housing B '-B ' of the embodiment of the present invention.
Figure 10 is the structural schematic diagram of pressure stabilizing mechanism in the embodiment of the present invention.
Figure 11 is the cooperation schematic diagram of cycloidal type rotor in the embodiment of the present invention.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term "center", " transverse direction ", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings,
Be merely for convenience of description of the present invention and simplification of the description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.Unless otherwise indicated, " more
It is a " it is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should broadly understood, for example, it may be being fixedly connected；It may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
In the concrete meaning of the present invention.
Referring to Fig. 1-11, the present invention provides a kind of oil transfer pump 2 of the automatically controlled injection diesel of single cylinder, including armature spindle 25, machine
Oil pump body 26, middle partition board 27, fuel pump body 28.Armature spindle is through oil pump body, middle partition board, fuel pump body.Middle partition board setting exists
Fuel pump body, oil pump body, middle partition board, combustion is arranged in the side of middle partition board setting oil pump body, the other side in the middle part of armature spindle
Oil pump body sequentially connects.
Armature spindle 25 is integrated shaft type.Front end is connect equipped with U-shaped opening 251 with crankshaft of diesel engine；Middle part is equipped with annular oil
Slot 252, side opening 253, dowel hole 254；Rear end is then equipped with flat block structure 255；The first half center of axis is equipped with oil duct 256, passes through
Lead to intermediate annular oil groove and side opening.
The front end of oil pump body 26 is equipped with axis hole 260；It set in oil pump body there are two mutually isolated oil suction chamber 261, gone out
Oil pocket 262, oil suction chamber are communicated with the oil inlet 263 being arranged on oil pump body, and oil outlet chamber goes out with what is be arranged on oil pump body
Hydraulic fluid port 264 communicates, and oil outlet is communicated with the import of oil filter 11, is additionally provided with oil return hole 265, oil return hole and oil filtration
The outlet of device communicates, and is also communicated with annular oil groove, the side opening on armature spindle；The rear end of oil pump body is provided with rotor chamber 266, with
Oil suction chamber, oil outlet chamber communicate, and 0 shape sealing ring 271 is additionally provided on the rear end face of oil pump body.Lubricating oil pump outer rotor 268 is mounted on
In rotor chamber, internal rotor of lubricating pump 267 is fixed on by positioning pin on the dowel hole of armature spindle, is nibbled with lubricating oil pump outer rotor
It closes, there is certain eccentricity therebetween.
Middle partition board 27 is arranged at the middle part of armature spindle, between oil pump body and fuel pump body.The center of middle partition board is set
There is axis hole, is set on circumference there are three screw hole, sequentially connected oil pump body, middle partition board, fuel pump body by bolt 272.
Middle partition board had not only played couple transitional function of the oil pump body with fuel pump body, but also played sealing oil pump body and its work of rotor chamber
With.
The front end of fuel pump body 28 is equipped with bearing bore, oil sealing chamber, and bearing bore is abutted with oil sealing chamber.Installation rolls in bearing bore
Bearing 289, is used to support armature spindle.Oil sealing intracavitary installs oil sealing 2891, and oil sealing uses Double-lip framework oil sealing, can be effectively by combustion
Oil is separated with machine oil, is equipped with the leak hunting aperture 2892 being connected with fuel pump body on oil sealing, and leak hunting aperture extends through fuel oil
Outside the pump housing, see whether that fuel oil (or machine oil) is flowed out from leak hunting aperture for daily, to determine whether because outside framework oil seal
Lead to oil leak after inordinate wear, in order to repair processing in time.The rear end face of fuel pump body is equipped with back shroud 280, is used for
Seal fuel pump body and its rotor chamber.
Mutually isolated oil suction chamber 281, oil outlet chamber 282 there are two being set in fuel pump body；Oil suction chamber is with setting in fuel pump
Oil inlet 283 on body communicates, and oil inlet couples with fuel tank 22, oil outlet chamber and the oil outlet 284 being arranged on fuel pump body
It communicates, oil outlet couples with electrical control oil spray pump 10；The rear end of fuel pump body is equipped with rotor chamber, is communicated with oil suction chamber and oil outlet chamber；
It is equipped with 0 shape sealing ring 271 on the front end face of fuel pump body, rear end face.Fuel pump outer rotor 288 is mounted in the rotor of fuel pump body
Intracavitary, free to rotate, the center of fuel pump internal rotor 287 is equipped with U-shaped hole and the cooperation of flat block structure 255 of rotor shaft rear end connects
It connects, after fuel pump internal rotor is engaged with fuel pump outer rotor, there is certain eccentricity therebetween.
Fuel pump body is additionally provided with pressure stabilizing cavity 285, and the bottom of pressure stabilizing cavity is equipped with the first oilhole 2851 being connected with oil outlet chamber,
The middle part of pressure stabilizing cavity is equipped with the second oilhole 2852, the third oilhole 2853 being connected with oil suction chamber.Voltage stabilizing machine is equipped in pressure stabilizing cavity
Structure 2850, pressure stabilizing mechanism include slide-valve 2856, spring 2855, plug screw 2854, and the rear end of slide-valve is equipped with spring cavity 2858, preceding
End is equipped with central oil passage 2859, and the front end of slide-valve is additionally provided with the side oilhole 2857 being connected to central oil passage.When slide-valve is installed,
Band side opening one end is towards in pressure stabilizing cavity bottom.Spring finally by plug screw pressing spring and is tightened in the spring cavity.
Lubricating oil pump, fuel pump use cycloidal type rotor, and internal rotor 273 is engaged with outer rotor 274, and has one between the two
Fixed eccentricity, when internal rotor rotates, can mutually coordinate point contact in the tooth form of each tooth of internal rotor, outer rotor, flank profil line,
Just four mutually isolated working chambers are formed between internal rotor, outer rotor.Therefore, when a certain working chamber turns over oil suction chamber in the middle,
Volume increase, generate parital vacuum, machine oil/fuel oil from oil inlet through being inhaled into when oil suction chamber, when this working chamber turns over oil outlet
When, volume reduces, and oil pressure increases, and machine oil/fuel oil is forced out through oil outlet chamber from oil outlet.
When diesel engine operation, under bent axle driving, the internal rotor of two actives of armature spindle is (i.e.：Turn in lubricating oil pump
Son and fuel pump internal rotor) and two driven outer rotors are (i.e.：Lubricating oil pump outer rotor and fuel pump outer rotor), while turning together
It starts building to make.It is pressed into oil filter through the oil outlet in oil pump body after machine oil boosting, the machine oil after refined filtration flows back to lubricating oil pump again,
Part is directly entered annular oil groove through oil return hole, and enters central hole of the crankshaft through side opening and centre bore, and then lubricates other zero
Part；Fuel oil is forced out from oil outlet into electrical control oil spray pump through the oil outlet chamber in fuel pump body.
When fuel pump is in off working state, due to plug screw pressing spring, slide-valve is pressed in the bottom of pressure stabilizing cavity by spring
Portion；When fuel pump is in voltage stabilizing working condition, the fuel oil of oil outlet chamber enters central oil passage from the first oilhole, pushes slide-valve
After mobile smaller distance, fuel pressure is in equilibrium state with spring pressure, and fuel pressure is held, at this point, on slide-valve
Side oilhole be not connected to the second oilhole, oil suction chamber is just spaced with oil outlet chamber and is not connected to like this, to realize fuel pressure
Stablize in a specific range, promotes fuel oil to be forced out from oil outlet through the oil outlet chamber in fuel pump body, subsequently into automatically controlled spray
Oil pump, to meet diesel engine fuel oil demand and supply；But when fuel pump output overvoltage, oil outlet chamber fuel pressure is more than spring pressure
Power, slide-valve displacement distance is larger, the pressure so that side opening of slide-valve is connected with the second oilhole, at this time oil suction chamber and oil outlet chamber
Connection is got up, the fuel oil after boosting just flows into oil suction chamber at once, cannot be forced out, cannot establish through the oil outlet of oil outlet chamber
High pressure fuel enters electrical control oil spray pump.The third oilhole of pressure stabilizing cavity is communicated with oil suction chamber, and fuel oil enters pressure stabilizing mechanism spring
Interior section, forms larger vacuum resistance to avoid this space, and such slide-valve is easy to push the spring in the cavity
Compression movement.
The present invention drives two group rotors to work using integrated axle construction, and using single roller bearings armature spindle, tool
There is the characteristics of compact-sized, function is strong, long lifespan, oil transfer pump is equipped with fuel pressure pressure stabilizing mechanism, to establish in particular range
Fuel pressure, to meet the economic performance of electric-controlled injection diesel engine and emission performance demand.
Although an embodiment of the present invention has been shown and described, it will be understood by those of ordinary skill in the art that：Not
In the case of being detached from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The range of invention is limited by claim and its equivalent replacement, without creative work improvements introduced etc., should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of oil transfer pump of the automatically controlled injection diesel of single cylinder, including armature spindle, oil pump body, it is characterised in that：It further include combustion
Oil pump body, the armature spindle are arranged through the oil pump body, fuel pump body, the oil pump body before the armature spindle
Portion, the fuel pump body are arranged at the rear portion of the armature spindle.
2. the oil transfer pump of the automatically controlled injection diesel of single cylinder according to claim 1, it is characterised in that：The oil pump body and institute
State partition board in being arranged between fuel pump body, the middle centrally disposed axis hole of partition board, the oil pump body, middle partition board, fuel pump body
It sequentially connects, back shroud of the fuel pump body setting for sealing.
3. the oil transfer pump of the automatically controlled injection diesel of single cylinder according to claim 1, it is characterised in that：The armature spindle front end is set
It sets opening to connect with crankshaft of diesel engine, setting annular oil groove, side opening, dowel hole in the middle part of the armature spindle, after the armature spindle
Flat block structure, the centrally disposed oil duct of first half of the armature spindle, the oil duct and the annular oil groove, side opening phase is arranged in end
It is logical.
4. the oil transfer pump of the automatically controlled injection diesel of single cylinder according to claim 3, it is characterised in that：The oil pump body, combustion
Oil pump body uses cycloidal type rotor, the internal rotor of lubricating pump of the oil pump body to be fixed on the dowel hole, the combustion
The centrally disposed trepanning of the fuel pump internal rotor of oil pump body and described flat piece mating connection.
5. the oil transfer pump of the automatically controlled injection diesel of single cylinder according to claim 4, it is characterised in that：It is set in the fuel pump body
Bearing bore is set, rolling bearing is arranged in the bearing bore, and the rolling bearing is used to support the armature spindle.
6. the oil transfer pump of the automatically controlled injection diesel of single cylinder according to claim 5, it is characterised in that：It is set in the fuel pump body
Oil sealing chamber is set, oil sealing is arranged in the oil sealing chamber, and the bearing bore is abutted with the oil sealing chamber.
7. the oil transfer pump of the automatically controlled injection diesel of single cylinder according to claim 6, it is characterised in that：On the oil sealing with it is described
The leak hunting aperture being connected is set on fuel pump body, and the leak hunting aperture extends through outside the fuel pump body.
8. the oil transfer pump of the automatically controlled injection diesel of single cylinder according to claim 1, it is characterised in that：In the fuel pump body also
Pressure stabilizing cavity is set, the pressure stabilizing cavity is arranged pressure stabilizing mechanism, and the pressure stabilizing mechanism includes slide-valve, spring, and the one of the slide-valve
The side oilhole that end setting spring cavity, the other end are arranged central oil passage and are communicated with central oil passage.
9. the oil transfer pump of the automatically controlled injection diesel of single cylinder according to claim 8, it is characterised in that：Pressure stabilizing cavity setting the
One oilhole, the second oilhole, third oilhole, first oilhole are communicated with the oil outlet chamber of the fuel pump body, and described second
Oilhole, third oilhole are communicated with the oil suction chamber of the fuel pump body.
10. the oil transfer pump of the automatically controlled injection diesel of single cylinder according to claim 9, it is characterised in that：The spring setting exists
In the spring cavity, the fuel oil with oil pressure enters central oil passage through the first oilhole and pushes the slide-valve, when fuel oil oil pressure reaches
When to certain value, second oilhole is communicated with side oilhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810455132.1A CN108412650A (en) | 2018-05-12 | 2018-05-12 | A kind of oil transfer pump of the automatically controlled injection diesel of single cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810455132.1A CN108412650A (en) | 2018-05-12 | 2018-05-12 | A kind of oil transfer pump of the automatically controlled injection diesel of single cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108412650A true CN108412650A (en) | 2018-08-17 |
Family
ID=63139141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810455132.1A Withdrawn CN108412650A (en) | 2018-05-12 | 2018-05-12 | A kind of oil transfer pump of the automatically controlled injection diesel of single cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108412650A (en) |
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|---|---|---|---|---|
| DE19844163C1 (en) * | 1998-09-25 | 2000-01-05 | Ficht Gmbh & Co Kg | Dosed pumping method for fuel, lubrication oil, alcohol or water |
| US20040247464A1 (en) * | 2003-06-04 | 2004-12-09 | Denso Corporation | Fuel supply apparatus |
| DE102006039323B3 (en) * | 2006-08-22 | 2007-08-23 | Siemens Ag | Fluid pump unit e.g. fuel pump unit, for e.g. diesel injection system of internal combustion engine, has two pumps respectively exhibiting drive shafts mounted in housing, where drive shafts are rotatably coupled by sleeve free-wheel |
| JP2011052597A (en) * | 2009-09-02 | 2011-03-17 | Nabtesco Corp | Fuel and lubricating oil supply pump |
| CN107143448A (en) * | 2017-06-30 | 2017-09-08 | 南岳电控（衡阳）工业技术股份有限公司 | Miniature air-cooling single cylinder diesel engine fuel oil sprays single cylinder electric control pump |
| CN107795480A (en) * | 2016-09-01 | 2018-03-13 | 通用汽车环球科技运作有限责任公司 | Gerotor component |
| CN208534658U (en) * | 2018-05-12 | 2019-02-22 | 广东德力柴油机有限公司 | A kind of oil transfer pump of the automatically controlled injection diesel of single cylinder |
-
2018
- 2018-05-12 CN CN201810455132.1A patent/CN108412650A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19844163C1 (en) * | 1998-09-25 | 2000-01-05 | Ficht Gmbh & Co Kg | Dosed pumping method for fuel, lubrication oil, alcohol or water |
| US20040247464A1 (en) * | 2003-06-04 | 2004-12-09 | Denso Corporation | Fuel supply apparatus |
| DE102006039323B3 (en) * | 2006-08-22 | 2007-08-23 | Siemens Ag | Fluid pump unit e.g. fuel pump unit, for e.g. diesel injection system of internal combustion engine, has two pumps respectively exhibiting drive shafts mounted in housing, where drive shafts are rotatably coupled by sleeve free-wheel |
| JP2011052597A (en) * | 2009-09-02 | 2011-03-17 | Nabtesco Corp | Fuel and lubricating oil supply pump |
| CN107795480A (en) * | 2016-09-01 | 2018-03-13 | 通用汽车环球科技运作有限责任公司 | Gerotor component |
| CN107143448A (en) * | 2017-06-30 | 2017-09-08 | 南岳电控（衡阳）工业技术股份有限公司 | Miniature air-cooling single cylinder diesel engine fuel oil sprays single cylinder electric control pump |
| CN208534658U (en) * | 2018-05-12 | 2019-02-22 | 广东德力柴油机有限公司 | A kind of oil transfer pump of the automatically controlled injection diesel of single cylinder |
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Application publication date: 20180817 |