CN201377371Y - Electromagnetic gasoline pump - Google Patents
Electromagnetic gasoline pump Download PDFInfo
- Publication number
- CN201377371Y CN201377371Y CN200920115666U CN200920115666U CN201377371Y CN 201377371 Y CN201377371 Y CN 201377371Y CN 200920115666 U CN200920115666 U CN 200920115666U CN 200920115666 U CN200920115666 U CN 200920115666U CN 201377371 Y CN201377371 Y CN 201377371Y
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- plunger
- oil
- valve
- outlet valve
- electromagnetic
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- Electromagnetic Pumps, Or The Like (AREA)
- Magnetically Actuated Valves (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
An electromagnetic gasoline pump comprises a plunger sleeve and a plunger which carries out axial reciprocating motion in the plunger sleeve. The plunger is in dynamic sealing fit with the plunger sleeve; a magnetic shield and an iron core are mounted at the lower part of the plunger sleeve; a pressure chamber is formed on the upper side of the plunger; an oil inlet channel is communicated with the pressure chamber through an oil inlet valve; the pressure chamber is communicated with an oil passage G in an oil outlet pipe through an oil outlet valve; a plunger reset spring acts under the plunger; the spring force borne by the plunger points to the direction of the pressure chamber; when a coil is electrified, the electromagnet force borne by the plunger departs from the direction of the pressure chamber; an oil return chamber is formed on the lower side of the plunger; and a channel is communicated between the oil return chamber and a fuel oil tank. Because the electromagnetic gasoline pump is adopted to convert electromagnetic energy into pressure energy, the utility model has the advantages of low energy consumption, high energy availability and simple structure of the oil passage, solves the problem that the prior gasoline pump requires a pressure stabilization valve to eliminate redundant fuel oil for stabilizing the injection pressure when in use, and has strong creativeness and practical use.
Description
Technical field
The utility model relates to a kind of electromagnetic gasoline pump, belongs to forced feed pump technical field in the petrol engine fuel injection system.
Background technique
The present employed petrol pump of Electronic Injection System of Engine, belong to a kind of rotor pump, mainly comprise coil, impeller, housing, the oil inlet passage that communicates with oil tank fuel, the oil discharge passage that communicates with high-pressure oil pipe, its working principle is the centrifugal force that utilizes direct current generator impeller high speed rotating to be produced, realization is to the purpose of fuel oil pressurization fuel feeding, this pump in use needs a pressure maintaining valve to let out to remove unnecessary fuel oil to stablize jet pressure, therefore exist utilization rate of electrical low, the shortcoming of oil circuit complicated layout, in the time of in being applied to the motorcycle electric-controlling injection system, these shortcomings just show to such an extent that very protrude.
Summary of the invention
The utility model provides a kind of electromagnetic gasoline pump of novelty, and electromagnetic energy is converted into the pressure energy, realizes that oil-fired system need not the purpose that pressure maintaining valve just can be realized constant pressure oil supply.
The technical solution adopted in the utility model is:
A kind of electromagnetic gasoline pump, comprise: oil outlet tube, end cap, coil rack, coil, housing, also comprise: the outlet valve valve seat, the outlet valve that oil outlet valve spring and outlet valve spool are formed, and the oiling valve of forming by oiling valve spool and oil-feed valve seat, comprise the tubular shape plunger bushing and in plunger bushing, do the cylindrical plunger of axially reciprocating, keep motive sealing to cooperate between plunger and the plunger bushing, the plunger bushing bottom is equipped with magnetic shield and iron core, the upside of plunger is a pressurizing chamber, oil inlet passage is communicated with pressurizing chamber through described oiling valve, pressurizing chamber is communicated with oil circuit G in the oil outlet tube through described outlet valve, the plunger return spring action is below plunger, the suffered spring force of plunger points to the pressurizing chamber direction, when coil electricity, the suffered electromagnetic force of plunger deviates from the pressurizing chamber direction, and the downside of plunger is an oil back chamber, between oil back chamber and fuel oil fuel tank channel connection is arranged.
End cap is provided with the oil-feed valve seat, and the formation oiling valve that matches with the oiling valve spool, and this oiling valve is arranged at petrol pump axle center or paraxial heart position, and the oiling valve spool is the plane valve structure, is the disk that a periphery offers oil circuit D.
End cap is provided with the outlet valve valve seat, and constitutes outlet valve with oil outlet valve spring, outlet valve spool, and this outlet valve is arranged at and departs from the petrol pump shaft core position.
Be provided with oil circuit E between the pressurizing chamber of plunger upside and the outlet valve, oil circuit E is arranged on the end cap.
The plunger center portion has the cylindric spring eye one of downward opening, and the epimere of plunger return spring is installed in the spring eye one, and the ratio of the maximum axial displacement amount of plunger and the pre compressed magnitude of plunger return spring is less than 2 to 10.
The top of plunger bushing is flange-shaped structure, offer the cylindrical hole that matches with cylindrical plunger at the center of plunger bushing, port on the top of this cylindrical hole, offer one with the annular groove of the concentric and diameter of cylindrical hole greater than this cylindrical hole, annular groove and cylindrical hole connecting part constitute an omoplate face that is used for oiling valve spool axial thrust, the oiling valve spool is installed in the annular groove, and can move vertically in annular groove.
Magnetic shield is arranged between plunger bushing and the iron core, and magnetic shield is made by the non-magnetic rustproof steel.
The position at magnetic shield place can also replace with contour spatial joint clearance, and promptly the position between plunger bushing and the iron core can adopt contour spatial joint clearance to replace.
The central position of iron core offers spring eye two, and the hypomere of plunger return spring is installed wherein, and spring eye two is connected with cooling oil circuit A, and the top of housing has the cooling oil circuit D that communicates with the fuel oil fuel tank.
Be provided with sealing configuration between the upper-end surface of end cap and plunger bushing.
The utility model beneficial effect is:
Electromagnetic gasoline pump is a forced feed pump in the oil-fired system, the oil pump capacity of electromagnetic gasoline pump can be controlled by the frequency of okperation of pump, charge oil pressure is controlled by the plunger return spring force, the charge oil pressure substantially constant, so adopt electromagnetic gasoline pump of the present utility model, make the forced feed pump of oil-fired system, it is low in energy consumption to be that electromagnetic gasoline pump has, power consumption is little, the capacity usage ratio height, oil channel structures is arranged simple advantage, having solved existing petrol pump in use needs a pressure maintaining valve to let out to remove unnecessary fuel oil to stablize the problem of jet pressure, have very strong creativeness and practicability, thereby market prospects are boundless.
Description of drawings
Fig. 1: the sectional structure chart that is the utility model embodiment one electromagnetic gasoline pump;
Fig. 2: the sectional view that is the oil-feed valve block of the utility model electromagnetic gasoline pump;
Fig. 3: the plan view that is Fig. 2;
Fig. 4: the sectional structure chart that is the utility model embodiment two electromagnetic gasoline pump.
Among Fig. 1: 1, oil outlet tube 2, end cap 3, oil outlet valve spring 4, outlet valve spool
5, oiling valve spool 6, plunger 7, plunger bushing 8, magnetic shield
9, plunger return spring 10, iron core 11, coil rack
12, coil 13, housing 14, oil-feed valve seat
15, oil circuit A 16, oil circuit B 17, oil circuit C 18, oil circuit D
19, pressurizing chamber 20, oil circuit E 21, oil circuit F 22, oil circuit G
23, spring eye 1, oil back chamber 25, spring eye two
26, cooling oil circuit A 27, cooling oil circuit B
28, cooling oil circuit C 29, cooling oil circuit D
30, outlet valve valve seat
Among Fig. 2,3: 5, oiling valve spool 18, oil circuit D
Among Fig. 4: 1, oil outlet tube 2, end cap 3, oil outlet valve spring 4, outlet valve spool
5, oiling valve spool 6, plunger 7, plunger bushing
9, plunger return spring 10, iron core 11, coil rack
12, coil 13, housing 14, oil-feed valve seat
15, oil circuit A 16, oil circuit B 17, oil circuit C 18, oil circuit D
19, pressurizing chamber 20, oil circuit E 21, oil circuit F 22, oil circuit G
23, spring eye 1, oil back chamber 25, spring eye two
26, cooling oil circuit A 27, cooling oil circuit B
28, cooling oil circuit C 29, cooling oil circuit D
30, outlet valve valve seat
Embodiment
Fig. 1, Fig. 2, shown in Figure 3 are embodiment one of the present utility model:
Electromagnetic gasoline pump, by: oil outlet tube 1, end cap 2, oil outlet valve spring 3, outlet valve spool 4, oiling valve spool 5, plunger 6, plunger bushing 7, magnetic shield 8, plunger return spring 9, iron core 10, coil rack 11, coil 12, housing 13, oil-feed valve seat 14, outlet valve valve seat 30 are formed.
The oil channel structures of described petrol pump is: oil circuit A15, oil circuit B16, oil circuit C17, oil circuit D18, pressurizing chamber 19, oil circuit E20, oil circuit F21, oil circuit G22 are at outlet valve spool 4, interconnect in proper order when oiling valve spool 5 is opened, oil circuit A15 communicates with the fuel oil fuel tank, and oil circuit G22 communicates with high-pressure oil pipe.
The cold oil line structure of described petrol pump is: spring eye 1, oil back chamber 24, spring eye 2 25, cooling oil circuit A26, cooling oil circuit B27, cooling oil circuit C28, cooling oil circuit D29 interconnect in proper order, and cooling oil circuit D29 communicates with the fuel oil fuel tank.
The periphery of plunger 6 is coil rack 11 and coil 12, and during oil pump work, coil 12 feeds pulsed drive current, makes plunger 6 produce electromagnetic force intermittently.
The downside of plunger 6 is oil back chambers 24, and its function is the fuel oil of collecting from plunger 6 gap seepages, and the pressure that makes plunger 6 bottoms is near atmospheric pressure.
The fuel path passage that is constituted on the electromagnetic gasoline pump structure is: when coil 12 energisings, plunger 6 is subjected to downward electromagnetic force and moves downward, pressurizing chamber 19, be in negative pressure state among the oil circuit E20, then outlet valve spool 4 under the effect of oil outlet valve spring 3 with oil circuit F21, oil circuit G22 closes, at this moment the pressure among the oil circuit B16 is greater than the pressure in the pressurizing chamber 19, oiling valve spool 5 is opened under the pressure difference effect of oil circuit B16 and pressurizing chamber 19, fuel from fuel tank enters oil circuit A15, enter oil circuit B16, enter oil circuit C17, enter in pressurizing chamber 19 cavitys through oil circuit D18, when plunger 6 moves downward limit position, finish the process that sucks fuel oil.When coil blackout, electromagnetic force disappears, plunger 6 moves upward under the effect of Returnning spring power then, fuel oil in 6 pairs of pressurizing chamber 19 chambeies of plunger is exerted pressure, at this moment the pressure in the pressurizing chamber 19 is greater than the pressure among the oil circuit B16, oiling valve spool 5 is closed under the pressure difference effect of oil circuit B16 and pressurizing chamber 19, fuel oil in pressurizing chamber 19 chambeies just enters oil circuit E20 like this, under the promotion of plunger 6, fuel pressure in pressurizing chamber 19 chambeies is opened outlet valve spool 4, the pressure fuel oil just enters oil circuit F21, among the oil circuit G22, enter in the oil sprayer of petrol engine by high-pressure oil pipe then, spray in the petrol engine.
The oiling valve of present embodiment belongs to a kind of plane valve, and its oil-feed valve seat 14 is circle structures on end cap 2 end faces of processing, and sealing surface is the plane with the oil pump central vertical.Oiling valve spool 5 is valve blocks, its structure is shown in Fig. 2,3, its periphery has several oil circuit D18, upper end-hole at plunger bushing 7, have the diameter annular groove more bigger than oiling valve spool 5, oiling valve spool 5 is placed wherein, can be free vertically movable in annular groove, and the omoplate face of annular groove lower end is used for the axial thrust of oiling valve spool 5.
The design feature of present embodiment oiling valve also has: the center of the center of oiling valve and plunger 6 overlaps or basic the coincidence, its objective is the resistance that reduces in plunger 6 oil-absorbing process, reduces the generation of bubble, improves the heat-resisting ability of oil pump;
Another characteristics of present embodiment oiling valve are, there is not conventional Returnning spring on the oiling valve spool 5, its objective is the manufacturability of improving oiling valve, in plunger 6 to-and-fro motion processes, pressurizing chamber 19 can make oiling valve spool 5 open and close automatically with the slight pressure difference of oil circuit B16.
The outlet valve of present embodiment is a ball valve, constitute by outlet valve spool 4 and oil outlet valve spring 3, in order to allow oiling valve be installed in position near plunger 6 centers, outlet valve is eccentric to be installed, and oil circuit E20 is set between pressurizing chamber 19 and oiling valve, oil outlet tube 1 is the connecting tube of oil pump and high-pressure oil pipe.
The cold oil paths, the fuel oil of plunger 6 gap seepages is collected spring eye 1, oil back chamber 24, in the spring eye 2 25, when plunger 6 moves downward, with spring eye 1, oil back chamber 24, the fuel oil that spring eye 2 25 is collected is by the cooling oil circuit A26 on iron core 10 sidewalls, by gap, coil rack 11 lower end surface cooling oil circuit B27, by coil 12 peripheral clearance cooling oil circuit C28, outside the spill port cooling oil circuit D29 excavationg pump from housing 13, spill port cooling oil circuit D29 is connected with fuel tank under the atmospheric pressure, the fuel oil of so both having realized seepage reclaims, and can cool off coil 12 simultaneously.
The bottom of oil back chamber 24 is spring eyes 2 25, the hypomere of plunger return spring 9 is installed wherein, for the charge oil pressure that guarantees oil pump keeps constant substantially, the ratio of the pre compressed magnitude of the relative plunger return spring 9 of reciprocating displacement amount of plunger 6 must remain in the small range, its controlling method is the frequency of okperation of control oil pump, its principle is: under the certain situation of the need oil mass of motor, the oil pump frequency of okperation is high more, then the displacement amount of oil pump single fuel feeding needs is just more little, the variation of Returnning spring power is just more little, and charge oil pressure is just stable more.
In the actual design, in order to pursue pressurizing chamber, promptly minimizing of pressurizing chamber 19 volumes need reasonably be designed plunger 6 maximum displacements.
Present embodiment is controlled in 2: 10 scopes the ratio of plunger 6 maximum displacements and plunger return spring 9 pre compressed magnitudes, near preferred 1: 9.So-called plunger 6 maximum displacements are defined as: the descending position of plunger 6 abundant adhesives, and the distance between the position of plunger 6 when resetting bump oiling valve spool 5.
The oil pump case 13 of present embodiment is a cylinder body of being made by soft magnetic metal, can adopt with the means of fixation of end cap 2 to be welded to connect, and housing 13 can also adopt other shape, such as the electromagnet industry commonly used the galleyproof type tinsel is struck out the U type.
Between end cap 2 and plunger bushing 7 the O RunddichtringO being set seals.
In pressure process, the pressure of fuel oil depends on that the lateral cross section of plunger 6 is amassed and the spring reset power of plunger return spring 9 in the pressurizing chamber 19, the lateral cross section of plunger 6 is long-pending to be constant, when plunger 6 displacements with respect to the pre compressed magnitude of plunger return spring 9 hour, the reposition force of plunger return spring 9 is approximately constant also, so the pressure of oil pump output fuel oil is near constant.
Above-mentioned design electromagnetic gasoline pump, the pump oil process of petrol pump is the spring force control that relies on plunger return spring 9, when the pre compressed magnitude of the relative plunger return spring 9 of axial displacement of plunger 6 hour, can obtain pressure output near constant voltage, and need not external pressure maintaining valve, external oil circuit is arranged simple.
Shown in Figure 4, be embodiment two of the present utility model:
Electromagnetic gasoline pump, by: oil outlet tube 1, end cap 2, oil outlet valve spring 3, outlet valve spool 4, oiling valve spool 5, plunger 6, plunger bushing 7, plunger return spring 9, iron core 10, coil rack 11, coil 12, housing 13, oil-feed valve seat 14, outlet valve valve seat 30 are formed.
The magnetic shield 8 in above-mentioned stage casing, the middle section position at magnetic shield 8 places can also replace with contour spatial joint clearance, promptly cancel magnetic shield 8, as long as go up between the hypomere, be to keep one section between plunger bushing 7 and the iron core 10 every magnetic gap, can both realize identical functions, make plunger 6 produce downward vertically electromagnetic force during energising.
Other functions are same or similar with embodiment one.
Oil pump of the present utility model in use can be put in the engine oil tank and use, and also can adopt a little container that oil pump is wrapped up, and again the fuel oil in the fuel tank is introduced this container, uses outward thereby be placed on fuel tank.
The utility model is applied for patent of invention simultaneously.
Claims (10)
1, a kind of electromagnetic gasoline pump, comprise: oil outlet tube (1), end cap (2), coil rack (11), coil (12), housing (13), also comprise: outlet valve valve seat (30), the outlet valve that oil outlet valve spring (3) and outlet valve spool (4) are formed, and the oiling valve of forming by oiling valve spool (5) and oil-feed valve seat (14), it is characterized in that: comprise tubular shape plunger bushing (7) and in plunger bushing (7), do the cylindrical plunger (6) of axially reciprocating, keep motive sealing to cooperate between plunger (6) and the plunger bushing (7), plunger bushing (7) bottom is equipped with magnetic shield (8) and iron core (10), the upside of plunger (6) is a pressurizing chamber (19), oil inlet passage is communicated with pressurizing chamber (19) through described oiling valve, pressurizing chamber (19) is communicated with oil circuit G (22) in the oil outlet tube (1) through described outlet valve, plunger return spring (9) acts on the below of plunger (6), the suffered spring force of plunger points to pressurizing chamber (19) direction, when coil electricity, the suffered electromagnetic force of plunger (6) deviates from pressurizing chamber (19) direction, the downside of plunger is an oil back chamber (24), between oil back chamber (24) and fuel oil fuel tank channel connection is arranged.
2, electromagnetic gasoline pump according to claim 1, it is characterized in that: end cap (2) is provided with oil-feed valve seat (14), and the formation oiling valve that matches with oiling valve spool (5), this oiling valve is arranged at petrol pump axle center or paraxial heart position, oiling valve spool (5) is the plane valve structure, is the disk that a periphery offers oil circuit D (18).
3, electromagnetic gasoline pump according to claim 1 is characterized in that: end cap (2) is provided with outlet valve valve seat (30), and constitutes outlet valve with oil outlet valve spring (3), outlet valve spool (4), and this outlet valve is arranged at and departs from the petrol pump shaft core position.
4, electromagnetic gasoline pump according to claim 1 is characterized in that: be provided with oil circuit E (20) between the pressurizing chamber (19) of plunger (6) upside and the outlet valve, oil circuit E (20) is arranged on the end cap (2).
5, electromagnetic gasoline pump according to claim 1, it is characterized in that: plunger (6) center portion has the cylindric spring eye one (23) of downward opening, the epimere of plunger return spring (9) is installed in the spring eye one (23), and the ratio of the pre compressed magnitude of the maximum axial displacement amount of plunger (6) and plunger return spring (9) is less than 2 to 10.
6, electromagnetic gasoline pump according to claim 1, it is characterized in that: the top of plunger bushing (7) is flange-shaped structure, offer the cylindrical hole that matches with cylindrical plunger (6) at the center of plunger bushing (7), port on the top of this cylindrical hole, offer one with the annular groove of the concentric and diameter of cylindrical hole greater than this cylindrical hole, annular groove and cylindrical hole connecting part constitute an omoplate face that is used for oiling valve spool (5) axial thrust, oiling valve spool (5) is installed in the annular groove, and can move vertically in annular groove.
7, electromagnetic gasoline pump according to claim 1 is characterized in that: magnetic shield (8) is arranged between plunger bushing (7) and the iron core (10), and magnetic shield (8) is made by the non-magnetic rustproof steel.
8, according to claim 1 or 7 described electromagnetic gasoline pumps, it is characterized in that: the position at magnetic shield (8) place can also replace with contour spatial joint clearance, and promptly the position between plunger bushing (7) and the iron core (10) can adopt contour spatial joint clearance to replace.
9, electromagnetic gasoline pump according to claim 1, it is characterized in that: the central position of iron core (10) offers spring eye two (25), the hypomere of plunger return spring (9) is installed wherein, spring eye two (25) is connected with cooling oil circuit A (26), and the top of housing (13) has the cooling oil circuit D (29) that communicates with the fuel oil fuel tank.
10, electromagnetic gasoline pump according to claim 1 is characterized in that: be provided with sealing configuration between the upper-end surface of end cap (2) and plunger bushing (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920115666U CN201377371Y (en) | 2009-03-18 | 2009-03-18 | Electromagnetic gasoline pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920115666U CN201377371Y (en) | 2009-03-18 | 2009-03-18 | Electromagnetic gasoline pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201377371Y true CN201377371Y (en) | 2010-01-06 |
Family
ID=41517478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920115666U Expired - Fee Related CN201377371Y (en) | 2009-03-18 | 2009-03-18 | Electromagnetic gasoline pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201377371Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910103A (en) * | 2016-06-20 | 2016-08-31 | 史亮 | Oil injector of oil-fired heating furnace |
| CN114704410A (en) * | 2022-04-27 | 2022-07-05 | 中船动力研究院有限公司 | Dual-fuel pressurizing injection device |
-
2009
- 2009-03-18 CN CN200920115666U patent/CN201377371Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910103A (en) * | 2016-06-20 | 2016-08-31 | 史亮 | Oil injector of oil-fired heating furnace |
| CN105910103B (en) * | 2016-06-20 | 2018-04-13 | 史亮 | Fuel oil heating fuel injector |
| CN114704410A (en) * | 2022-04-27 | 2022-07-05 | 中船动力研究院有限公司 | Dual-fuel pressurizing injection device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100106 Termination date: 20180318 |