CN201306237Y - Electric [oil] transfer pump assembly of diesel engine - Google Patents
Electric [oil] transfer pump assembly of diesel engine Download PDFInfo
- Publication number
- CN201306237Y CN201306237Y CNU2008201687849U CN200820168784U CN201306237Y CN 201306237 Y CN201306237 Y CN 201306237Y CN U2008201687849 U CNU2008201687849 U CN U2008201687849U CN 200820168784 U CN200820168784 U CN 200820168784U CN 201306237 Y CN201306237 Y CN 201306237Y
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- Prior art keywords
- oil
- electrically operated
- pump
- parts
- diesel engine
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Abstract
An electric transfer pump assembly of a diesel engine comprises an electric transfer pump and an electronic control module, wherein the electric transfer pump is fixed on a cooling plate of the electronic control module. The electric transfer pump comprises a wire harness, an end cover component, a brush holder component, an armature commutator, an armature component, a motor stator, an oil pump component, a housing component and a rubber vibration reduction sleeve; the end cover component, the brush holder component, the armature commutator, the armature component, the motor stator and the oil pump component are combined in sequence and arranged in a cavity formed by the end cover component and the housing component; and the wire harness is fixed on the end cover component and connected with a carbon brush of the brush holder component. By adopting the technical scheme, the electric transfer pump assembly of the diesel engine solves the problem that products have electromagnetic interference to the outside world, improves the reliability and stability of products, improves the quick start performance of the diesel engine at low temperature, low voltage and low velocity, and prolongs the service life.
Description
Technical field
The utility model relates to a kind of diesel engine electrically operated fuel pump assembly.
Background technique
The diesel engine electrically operated fuel pump generally is contained between fuel tank and the gear pump, is used to provide essential fuel pressure, and fuel oil is imported gear pump.This is to overcome oil pipe and the filter cleaner resistance is necessary, also can prevent that air from invading oil-fired system simultaneously, and makes in the Injection Pump low-pressure cavity and be full of fuel oil.Electromagnetic interference to external world (EMI) is the key technology difficult problem of electrically operated fuel pump.General electrically operated fuel pump solves the scheme of EMI, substantially be the index that inductance, electric capacity filter the EMI that improves product of packing in the inside of oil pump, but its negative effect is bigger, electronic component such as inductance, electric capacity is subjected to bigger influence in its reliability of the medium-term and long-term work of oil, so that influence the reliability and stability of electrically operated fuel pump.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of diesel engine electrically operated fuel pump assembly, to overcome the defective that existing electrically operated fuel pump exists, makes electrically operated fuel pump keep good working order and working life at work.
For solving the problems of the technologies described above, the utility model adopts no inductance, capacitive way, its technological scheme is: a kind of diesel engine electrically operated fuel pump assembly, comprise electrically operated fuel pump and electronic control module, electrically operated fuel pump is fixed on above the cooling plate of electronic control module, electrically operated fuel pump comprises wire harness, the end cap parts, the brush spring parts, the armature commutator, armature assembly, motor stator, the oil pump parts, casing assembly and rubber damping cover, described end cap parts, the brush spring parts, the armature commutator, armature assembly, motor stator and oil pump parts make up successively and place in the cavity that is formed by end cap parts and casing assembly, and wire harness is fixed on the end cap parts and with the carbon brush of brush spring parts and is connected.
Described oil pump parts are combined successively by mounting screw, fuel-displaced thrust plate, oil pump stator, roller, oil hydraulic-pump rotor, oil pump shaft, oil-feed thrust plate, O-ring seals and pressure-limit valve parts.
Described brush spring parts are combined successively by pressing plate, brush spring, carbon brush and brush spring.
Electrically operated fuel pump is directly controlled by electronic control module, and adopts observation and control technology, and the rolling curve figure of oil pump in the electrically operated fuel pump (roller pump) and the relation between flow are analyzed, and draws a good control range.
The beneficial effects of the utility model: adopt technique scheme can solve product electromagnetic interference to external world, improve reliability of products and stability, and can improve low temperature, the low pressure of diesel engine, the quick starting performance and the working life of low speed.
Description of drawings
Fig. 1 is a kind of embodiment's of the utility model electrically operated fuel pump a structure explosive view;
Fig. 2 is the structure explosive view of oil pump parts among Fig. 1;
Fig. 3 is the structure explosive view of Fig. 1 center brush frame parts;
Fig. 4 is a kind of embodiment's of the utility model electrically operated fuel pump a structure sectional view;
Fig. 5 is the mounting point figure of electrically operated fuel pump.
Embodiment
As Fig. 1, Fig. 2, Fig. 3, embodiment shown in Figure 4, comprise electrically operated fuel pump and electronic control module, electrically operated fuel pump 20 is fixed on above the cooling plate 19 of electronic control module, electrically operated fuel pump comprises wire harness 7, end cap parts 8, brush spring parts 9, armature commutator 10, armature assembly 11, motor stator 12, oil pump parts 13, casing assembly 14 and rubber damping cover 15, described end cap parts 8, brush spring parts 9, armature commutator 10, armature assembly 11, motor stator 12 and oil pump parts 13 make up successively and place in the cavity that is formed by end cap parts 8 and casing assembly 14, and wire harness 7 is fixed on the end cap parts 8 and with the carbon brush 16 of brush spring parts 9 and is connected; Brush spring parts 9 are combined successively by pressing plate 23, brush spring 24, carbon brush 16 and brush spring 25; Oil pump parts 13 are combined by screw 21 successively by fuel-displaced thrust plate 1, oil pump stator 2, roller 3, oil hydraulic-pump rotor 4, oil pump shaft 26, oil-feed thrust plate 5, O-ring seals 6 and pressure-limit valve parts 22, formed an enclosed volume between oil-feed thrust plate 5 and fuel-displaced thrust plate 1 and oil pump stator 2, oil hydraulic-pump rotor 4, the roller 3, oil pump stator 2 is eccentric design with oil hydraulic-pump rotor 4.For improving the volumetric efficiency of oil pump, the gap that is meshed of oil hydraulic-pump rotor 4 and roller 3 is 0.005-0.015 millimeter.For further improving the Endurance life of electrically operated fuel pump, make it reach 6000 hour Endurance life, carbon brush 16 processing aspects adopt low-resistance method of moulding to process, and the per pass operation makes every effort to meticulous; The spring force of brush spring 24 is generally selected 23-28N/cm for use
2The planeness of commutator 10≤5 μ m; Commutator 10 uses rotating speed≤7000RPM in diesel oil.For preventing seal leakage, improve life of product, O-ring seals 6 adopts two pass O shape viton seal ring.
The work brief description of this electrically operated fuel pump is as follows: as shown in Figure 5, by 4 mounting hole 18 usefulness card framves 17 electrically operated fuel pump 20 is fixed on above the ECM cooling plate 19.Electronic control module during engine start (ECM) directly sends signal to electrically operated fuel pump, electrically operated fuel pump 20 is started working, when armature 11 drives oil hydraulic-pump rotor 4 and roller 3 rotations, roller 3 is under the effect of centrifugal force and inertial force, at this moment the supporting surface of being close to oil pump stator 2 and oil hydraulic-pump rotor 4 has formed an enclosed volume between oil-feed thrust plate 5 and fuel-displaced thrust plate 1 and oil pump stator 2, oil hydraulic-pump rotor 4, roller 3; Because the off-centre of oil pump stator 2 and oil hydraulic-pump rotor 4 design, in the rotary course of oil hydraulic-pump rotor 4, when the sealing enclosed volume communicates with the oil-feed window,, form certain negative pressure at oil suction chamber along with the increase of enclosed volume, at this moment fuel from fuel tank sucks in the enclosed volume, along with oil hydraulic-pump rotor 4 continues rotation, when the sealing enclosed volume communicates with fuel-displaced window, along with the minimizing of enclosed volume, form certain malleation going out oil pocket, fuel oil is pressed into gear pump from enclosed volume.
Claims (7)
1, a kind of diesel engine electrically operated fuel pump assembly, it is characterized in that comprising electrically operated fuel pump and electronic control module, electrically operated fuel pump is fixed on above the cooling plate (19) of electronic control module, electrically operated fuel pump comprises wire harness (7), end cap parts (8), brush spring parts (9), armature commutator (10), armature assembly (11), motor stator (12), oil pump parts (13), casing assembly (14) and rubber damping cover (15), described end cap parts (8), brush spring parts (9), armature commutator (10), armature assembly (11), motor stator (12) and oil pump parts (13) make up successively and place in the cavity that is formed by end cap parts (8) and casing assembly (14), and wire harness (7) is fixed on end cap parts (8) and upward and with the carbon brush (16) of brush spring parts (9) is connected.
2, diesel engine electrically operated fuel pump according to claim 1 is characterized in that the planeness≤5 μ m of described commutator (10), and commutator (10) uses rotating speed≤7000RPM in diesel oil.
3, diesel engine electrically operated fuel pump according to claim 1 and 2, it is characterized in that described oil pump parts (13) are combined successively by mounting screw (21), fuel-displaced thrust plate (1), oil pump stator (2), roller (3), oil hydraulic-pump rotor (4), oil pump shaft (26), oil-feed thrust plate (5), O-ring seals (6) and pressure-limit valve parts (22), formed an enclosed volume between oil-feed thrust plate (5) and fuel-displaced thrust plate (1) and oil pump stator (2) oil hydraulic-pump rotor (4), the roller (3), oil pump stator (2) is eccentric design with oil hydraulic-pump rotor (4).
4, diesel engine electrically operated fuel pump according to claim 1 and 2 is characterized in that described brush spring parts (9) are combined successively by pressing plate (23), brush spring (24), carbon brush (16) and brush spring (25).
5, diesel engine electrically operated fuel pump according to claim 3 is characterized in that the gap that is meshed of described oil hydraulic-pump rotor (4) and roller (3) is 0.005-0.015 millimeter.
6, diesel engine electrically operated fuel pump according to claim 3 is characterized in that described O-ring seals (6) is a two pass O shape viton seal ring.
7, diesel engine electrically operated fuel pump according to claim 4, the spring force that it is characterized in that described brush spring (24) is 23-28N/cm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201687849U CN201306237Y (en) | 2008-11-25 | 2008-11-25 | Electric [oil] transfer pump assembly of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201687849U CN201306237Y (en) | 2008-11-25 | 2008-11-25 | Electric [oil] transfer pump assembly of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306237Y true CN201306237Y (en) | 2009-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201687849U Expired - Fee Related CN201306237Y (en) | 2008-11-25 | 2008-11-25 | Electric [oil] transfer pump assembly of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306237Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321869A (en) * | 2012-03-21 | 2013-09-25 | 哈维液压欧洲公司 | Pump aggregate |
-
2008
- 2008-11-25 CN CNU2008201687849U patent/CN201306237Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321869A (en) * | 2012-03-21 | 2013-09-25 | 哈维液压欧洲公司 | Pump aggregate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Huake Industry Development Co., Ltd., Wenzhou Assignor: Ke Guihua Contract record no.: 2010330001689 Denomination of utility model: Electric [oil] transfer pump assembly of diesel engine Granted publication date: 20090909 License type: Exclusive License Record date: 20100819 |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Huake Industry Development Co., Ltd., Wenzhou Assignor: Ke Guihua Contract record no.: 2010330001689 Denomination of utility model: Electric [oil] transfer pump assembly of diesel engine Granted publication date: 20090909 License type: Exclusive License Record date: 20100819 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20151125 |