CN204024884U - A kind of diesel engine electrically operated fuel pump - Google Patents
A kind of diesel engine electrically operated fuel pump Download PDFInfo
- Publication number
- CN204024884U CN204024884U CN201420487563.3U CN201420487563U CN204024884U CN 204024884 U CN204024884 U CN 204024884U CN 201420487563 U CN201420487563 U CN 201420487563U CN 204024884 U CN204024884 U CN 204024884U
- Authority
- CN
- China
- Prior art keywords
- rotor
- oil
- pump
- electrically operated
- diesel engine
- 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.)
- Active
Links
Landscapes
- Rotary Pumps (AREA)
Abstract
A kind of novel diesel engine electrically operated fuel pump, its roller slot first side (11) is parallel with the axial vane surface at corresponding decile radius place, roller slot the second side (12) is α with the axial vane surface angle at corresponding decile radius place, α > 0 spends, on described rotor front and back sides and be positioned at roller slot the second side and top end is provided with step, described step forms bypass channel (14), in described roller slot, be provided with roller (15), rotor when running roller moves back and forth inside and outside in roller slot under the cooperation of rotor and the pump housing, described rotor and pump chamber upper side closely cooperate, this novel diesel engine electrically operated fuel pump is without being parallel on working connection with safety check, can directly be connected on working connection, (when rotor running) pump oil rapidly initiatively time, again can be static time, (when rotor does not turn round) be smooth and easy excessively oily.
Description
Technical field
The utility model relates to a kind of improvement invention of electrically operated fuel pump, particularly be a kind of electrically operated fuel pump for diesel engine fuel feeding.
Background technique
Under microthermal climate condition, diesel oil there will be wax deposition, stops up low pressure oil way (0# diesel oil is particularly serious), and diesel engine will face and start problem difficult or that at all cannot start; After car starts in addition, because diesel oil viscosity under cryogenic conditions strengthens, poor fluidity will cause engine oil deficiency, occurs flame-out phenomenon.
In order to address the above problem, generally adopt electrically operated fuel pump to carry diesel oil and deaeration to low pressure oil way, with reference to Fig. 1, its working principle is connected in parallel on electrically operated fuel pump in working connection exactly, when need are dynamic, the necessary first oil suction of electrically operated fuel pump, then the oily pressure self pumping with it, closes on working connection and switches safety check 2, only in the situation that safety check 2 cuts out completely, electrically operated fuel pump could normally be worked, and diesel oil is flowed to diesel engine; If safety check does not cut out or incompetence, electrically operated fuel pump is when dynamic, can not be in formation negative pressuren zone, filler opening position, do not have negative pressuren zone electrically operated fuel pump work to lose efficacy, pump work lost efficacy will be in the time of not oil suction dry turning, dry transduction causes the pump of copper commutator can accelerate heel and toe wear, reduction of service life, causes producing short circuit and making pump scrap completely or lose efficacy between the commutator segment of pump of carbon commutator., just likely there is the problem of incompetence in the therefore existence of safety check.
The roller of current existing electrically operated fuel pump (or claiming roller pump) moves in the race of roller rotor, rotor rotates in the pump circle of the pump housing, the bi-side of race are parallel, be applied in the oil supply system of pressure requirement, can only be single complete active efflux functional oil, required pressure and flow is provided, electrically operated fuel pump with return only valve and be connected in parallel in the oil circuit of diesel engine fuel feeding.
Model utility content
In view of the technical problem existing in background technique, the technical problem that the utility model solves aim to provide one can be dynamically time active efflux oil, also can in the time of static state, allow the smooth and easy novel diesel engine electrically operated fuel pump passing through of oil.
For solving the problems of the technologies described above, the utility model adopts following technological scheme: a kind of diesel engine electrically operated fuel pump, include oil-feed plate, the pump housing, go out oiled-plate method, described oil-feed plate is provided with filler opening, described go out oiled-plate method be provided with oil outlet, described oil-feed plate and the both sides, front and back that go out oiled-plate method and abut against respectively the pump housing, oil-feed plate, go out oiled-plate method and the pump housing and in the pump housing, form columniform pump chamber, the shaft axis B of pump chamber vertical oil-feed plate and go out oiled-plate method respectively, in this pump chamber, upwards eccentric axis A place is provided with rotor, this rotor is turned round around eccentric axis A in pump chamber by motor-driven, it is characterized in that: described rotor is divided into some parts by decile radius, on rotor, the edge of decile radius is provided with roller slot, described roller slot is divided into some parts by corresponding rotor edge, roller slot the first side is parallel with the axial vane surface at corresponding decile radius place, roller slot the second side is α with the axial vane surface angle at corresponding decile radius place, α > 0 spends, on described rotor front and back sides and be positioned at roller slot the second side and top end is provided with step, described step forms bypass channel, in described roller slot, be provided with roller, rotor when running roller moves back and forth inside and outside in roller slot under the cooperation of rotor and the pump housing, described rotor and pump chamber upper side closely cooperate.
Cavity between the described pump housing and rotor is work cavity, described work cavity is divided into some cell operation cavitys by adjacent roller, rotor when running cell operation cavity be introduced into filler opening oil-feed scope, leave again the oil-feed scope of filler opening, enter the fuel-displaced scope of oil outlet again, the fuel-displaced scope of leaving again oil outlet so circulates.
Described oil-feed scope is arranged on the left side of pump chamber, and fuel-displaced scope is arranged on the right side of pump chamber.
Described filler opening is meniscate oil-feed tank, and described oil outlet is likeness in form fan shaped borehole, and described motor is in transmission connection by oil outlet and rotor.
Also include constant-voltage equipment, this constant-voltage equipment is arranged on oil-feed plate by connecting base.
25 degree≤α≤35 degree.
α is 31 degree or 32 degree.
Described decile radius be five by rotor five deciles, described roller slot should be five relatively.
Described columniform pump chamber replaces with the columniform pump chamber of class.
This diesel engine electrically operated fuel pump is connected in working connection.
The beneficial effects of the utility model are, it is large that roller pump has suction, pressure is high, the feature that flow is large, this novel diesel engine electrically operated fuel pump, without being parallel on working connection with safety check, can directly be connected on working connection, (when rotor running) pump oil rapidly initiatively time, again can be static time, (when rotor does not turn round) be smooth and easy excessively oily, and diesel oil under startup and the nominal situation of motor under low temperature temperature condition is supplied with reliable guarantee; Without safety check is set on working connection, do not have the problem that does not entirely cause transfer pump to work because of closure of check ring; On this electrically operated fuel pump, constant-voltage equipment is set, therefore in the situation that motor starts, when this pump and mechanical pump series operation, pressure can not change, but can make flow increase considerably, and solves because of under microthermal climate, diesel oil viscosity increases, poor fluidity and cause the problem for shortage of oil; Therefore the utility model compared with prior art has substantive distinguishing features and progress.
Brief description of the drawings
Mode of execution of the present utility model and embodiment's details and working principle are described below in conjunction with accompanying drawing.
Fig. 1 is that in prior art, electrically operated fuel pump is connected in parallel on the structural representation coordinating with safety check on working connection.
Fig. 2 is the utility model side direction structural representation.
Fig. 3 is the utility model oil-feed plate structure schematic diagram.
Fig. 4 is the utility model pump housing and rotor structure schematic diagram thereof.
Fig. 5 is the fuel-displaced plate structure schematic diagram of the utility model.
Structural representation when Fig. 6 is the utility model active efflux oil.
Structural representation when Fig. 7 is the passive oil excessively of the utility model.
Fig. 8 is that the utility model electrically operated fuel pump is connected on working connection structural representation.
Embodiment
Referring to accompanying drawing, a kind of novel diesel engine electrically operated fuel pump in present embodiment, include oil-feed plate 3, the pump housing 4, go out oiled-plate method 5, wherein oil-feed plate, go out oiled-plate method and adopt ceramic plate, described oil-feed plate is provided with filler opening 6, described go out oiled-plate method be provided with oil outlet 7, described oil-feed plate and the both sides, front and back that go out oiled-plate method and abut against respectively the pump housing, oil-feed plate, go out oiled-plate method and the pump housing and in the pump housing, form columniform pump chamber, the shaft axis B of pump chamber vertical oil-feed plate and go out oiled-plate method respectively, in this pump chamber, upwards eccentric axis A place is provided with rotor 9, this rotor is turned round around eccentric axis A in pump chamber by motor-driven, described rotor is divided into some parts by decile radius, on rotor, the edge of decile radius is provided with roller slot, described roller slot is divided into some parts by corresponding rotor edge.The radius of decile described in the present embodiment is five, and by rotor five deciles, described roller slot should be five relatively, and also by the edge of rotor five deciles, the pump functional oil that so can realize oil transfer pump is also taken into account the structural strength of rotor outward.Described oil-feed scope is arranged on the left side of pump chamber, and fuel-displaced scope is arranged on the right side of pump chamber.Described filler opening 6 is meniscate oil-feed tank, and described oil outlet 7 is likeness in form fan shaped borehole, and fan-shaped sector one side of this likeness in form is provided with step, and described motor is in transmission connection by oil outlet and rotor.
In order to make electrically operated fuel pump structure simpler, more reliable performance, has therefore made important change to the rotor shapes of roller pump.Make this pump (novel electrically operated fuel pump) can active efflux oil, again can static at it (when rotor does not turn round) do not allow diesel oil is smooth and easy to be passed through, cross functional oil.Roller slot the first side 11 is parallel with the axial vane surface at corresponding decile radius place, roller slot the second side 12 is α with the axial vane surface angle at corresponding decile radius place, α > 0 spends, (as preferred 25 degree≤α≤35 degree, be 31 degree or 32 degree as further preferably α) on described rotor front and back sides and be positioned at roller slot the second side 12 and top end 13 is provided with step, described step forms bypass channel 14, in described roller slot, be provided with roller, rotor when running roller moves back and forth inside and outside in roller slot under the cooperation of rotor and the pump housing, described rotor and pump chamber upper side closely cooperate, the setting that contains the bypass channel on top has strengthened the sectional area of passage while crossing oil effectively, run-off is strengthened.
Cavity between the described pump housing and rotor is work cavity, described work cavity is divided into some cell operation cavitys by adjacent roller, rotor when running cell operation cavity be introduced into filler opening oil-feed scope, leave again the oil-feed scope of filler opening, enter the fuel-displaced scope of oil outlet again, the fuel-displaced scope of leaving again oil outlet so circulates.
As figure, roller is contained in respectively in rotor five decile roller slots, rotor is contained in again in pump chamber, in the time of machine operation, rotor turns round counterclockwise, under the effect of centrifugal force, in roller slot, roller is close to the motion of pump chamber inner ring, roller is also close to the first side of rotor roller slot simultaneously, can form five cell operation cavitys, now five separate packings of cell operation cavity, its rotor and pump chamber upper side closely cooperate, and can make the volume of the cell operation cavity in rotor and pump chamber upper side place is zero.In rotor running, the volume of the cell operation cavity in left side changes from small to big, and air density changes thereupon, forms negative pressure in chamber, and diesel oil is sucked in cell operation cavity by the filler opening of oil-feed plate; Rotor is running then, then suck oily cell operation cavity and will leave the oil-feed scope of filler opening, be subject to the change of pump chamber shape and the up fuel-displaced scope that simultaneously enters oil outlet, cell operation cavity volume also will be from large to small, and mineralization pressure pumps diesel oil from oil outlet.The continuous running of rotor, diesel oil can constantly be inhaled into and pump, and this is roller pump active efflux functional oil.
As figure, in the time that this pump is static, (rotor does not turn round) five decile rotors can stop in position arbitrarily.Now under the oil pumping effect of working connection mechanical pump, to there be several rollers can be close to the second side of roller slot, can between roller and the first side, allow and appear oily passage, therefore the oily passage of mistake that diesel oil just can form by passage, bypass channel and the oil outlet of filler opening, work cavity, several rollers and the first side, for engine oil, can in the time that not turning round, its rotor allow diesel oil is smooth and easy to be passed through, cross functional oil, oil transportation ability can meet engine oil consumption and the required oil return flow of cooling whole injection system completely.Ensure the normal operation of motor under Different climate condition, and rotor stops and does not exist flow to be limited in 360 degree any point.
This pump also includes constant-voltage equipment 16, and this constant-voltage equipment is arranged on oil-feed plate by connecting base (connecting base adopts aluminium seat or zinc seat).Under microthermal climate condition, diesel oil viscosity increases, in the very poor situation of mobility, although motor start, during for shortage of oil, starting this pump synchronouss working with mechanical pump, because this pump has pressure-keeping functions, therefore two series connection of pumps work, pressure can not change, but flow increases considerably, can meet the required oil consumption of motor.Described motor has the multinomial comprehensive functions such as slow startup, overload protection, timing controlled, motor can select brush, brushless two kinds.Can make this pump there are short-term operation and two kinds of patterns of long-term work by time control function.
Columniform pump chamber can also be replaced with to the columniform pump chamber of class, outwards recessed at the circular arc sidewall of columniform pump chamber, the volume of increase pump chamber.
Because the existing active efflux oil of this pump has again the passive function of oil excessively, therefore diesel engine electrically operated fuel pump can be connected in working connection.Fully phase out switching safety check, there is no the pump of safety check, just had never again the problem that does not entirely cause air pump inoperative because of closure of check ring.When series connection, this pump passes in and out that oily direction comprises axially, two kinds of forms radially.
The utility model oil transfer pump also has an important function: in the time of the oil circuit parts such as the unexpected oil-break of motor or replacing diesel-oil filter, will inevitably import air, and for motor, importing air will produce vapour lock motor and cannot start, now, start transfer pump of the present utility model and will effectively get rid of rapidly in a short period of time the air in oil circuit, eliminate vapour lock, motor is started smoothly.
All diesel engine such as that above-mentioned application technology and function are applicable to is automobile-used, peculiar to vessel, diesel engine unit.
Claims (10)
1. a diesel engine electrically operated fuel pump, include oil-feed plate (3), the pump housing (4), go out oiled-plate method (5), described oil-feed plate is provided with filler opening (6), described go out oiled-plate method be provided with oil outlet (7), described oil-feed plate and the both sides, front and back that go out oiled-plate method and abut against respectively the pump housing, oil-feed plate, go out oiled-plate method and the pump housing and in the pump housing, form columniform pump chamber, the shaft axis B of pump chamber vertical oil-feed plate and go out oiled-plate method respectively, in this pump chamber, upwards eccentric axis A place is provided with rotor (9), this rotor is turned round around eccentric axis A in pump chamber by motor-driven, it is characterized in that: described rotor is divided into some parts by decile radius, on rotor, the edge of decile radius is provided with roller slot, described roller slot is divided into some parts by corresponding rotor edge, roller slot the first side (11) is parallel with the axial vane surface at corresponding decile radius place, roller slot the second side (12) is α with the axial vane surface angle at corresponding decile radius place, α > 0 spends, on described rotor front and back sides and be positioned at roller slot the second side and top end is provided with step, described step forms bypass channel (14), in described roller slot, be provided with roller (15), rotor when running roller moves back and forth inside and outside in roller slot under the cooperation of rotor and the pump housing, described rotor and pump chamber upper side closely cooperate.
2. a kind of diesel engine electrically operated fuel pump as claimed in claim 1, it is characterized in that: the cavity between the described pump housing and rotor is work cavity, described work cavity is divided into some cell operation cavitys by adjacent roller, rotor when running cell operation cavity be introduced into filler opening oil-feed scope, leave again the oil-feed scope of filler opening, enter the fuel-displaced scope of oil outlet again, the fuel-displaced scope of leaving again oil outlet so circulates.
3. a kind of diesel engine electrically operated fuel pump as claimed in claim 2, is characterized in that: described oil-feed scope is arranged on the left side of pump chamber, and fuel-displaced scope is arranged on the right side of pump chamber.
4. a kind of diesel engine electrically operated fuel pump as claimed in claim 3, is characterized in that: described filler opening is meniscate oil-feed tank, and described oil outlet is likeness in form fan shaped borehole, and described motor is in transmission connection by oil outlet and rotor.
5. a kind of diesel engine electrically operated fuel pump as claimed in claim 1, is characterized in that: also include constant-voltage equipment (16), this constant-voltage equipment is arranged on oil-feed plate by connecting base.
6. a kind of diesel engine electrically operated fuel pump as claimed in claim 1, is characterized in that: 25 degree≤α≤35 degree.
7. a kind of diesel engine electrically operated fuel pump as claimed in claim 1, is characterized in that: α is 31 degree or 32 degree.
8. a kind of diesel engine electrically operated fuel pump as claimed in claim 1, is characterized in that: described decile radius be five by rotor five deciles, described roller slot should be five relatively.
9. a kind of diesel engine electrically operated fuel pump as claimed in claim 1, is characterized in that: described columniform pump chamber replaces with the columniform pump chamber of class.
10. a kind of diesel engine electrically operated fuel pump as claimed in claim 1, is characterized in that: this diesel engine electrically operated fuel pump is connected in working connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420487563.3U CN204024884U (en) | 2014-08-28 | 2014-08-28 | A kind of diesel engine electrically operated fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420487563.3U CN204024884U (en) | 2014-08-28 | 2014-08-28 | A kind of diesel engine electrically operated fuel pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204024884U true CN204024884U (en) | 2014-12-17 |
Family
ID=52064757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420487563.3U Active CN204024884U (en) | 2014-08-28 | 2014-08-28 | A kind of diesel engine electrically operated fuel pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204024884U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550849A (en) * | 2021-06-29 | 2021-10-26 | 无锡威孚高科技集团股份有限公司 | Diesel constant-flow brushless starting pump assembly |
-
2014
- 2014-08-28 CN CN201420487563.3U patent/CN204024884U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550849A (en) * | 2021-06-29 | 2021-10-26 | 无锡威孚高科技集团股份有限公司 | Diesel constant-flow brushless starting pump assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104912794A (en) | Variable displacement pump | |
| CN107882728A (en) | Rotary blade type compressor and its pump assembly | |
| CN203743802U (en) | Oil pump assembly | |
| CN202756248U (en) | Secondary oil return preventing structure of rotary-vane vacuum pump | |
| CN207500118U (en) | Rotary blade type compressor and its pump assembly | |
| TWI537471B (en) | Compressor and oil supply method thereof | |
| CN102251969B (en) | Rotary vane type compressor | |
| CN103089615B (en) | The formula that leaks high pressure vane pump and using method thereof | |
| CN204024884U (en) | A kind of diesel engine electrically operated fuel pump | |
| CN104653996B (en) | two-stage variable displacement oil pump | |
| CN105190038A (en) | Vane pump | |
| KR101534878B1 (en) | Variable Oil Pump | |
| CN202073788U (en) | Air-cooled type rotary vane vacuum pump with oil-temperature control system | |
| CN208169189U (en) | A kind of vertical type pump bearing body proposes oily structure | |
| CN203906297U (en) | Horizontal type and rotary type compressor | |
| CN104612969A (en) | Double screw air compressor set for pure power-driven bus | |
| CN103994074B (en) | Horizontal rotary compressor | |
| CN205533187U (en) | Wide speed range's three effect impeller pumps | |
| JP2019190287A (en) | Compressor | |
| CN103982438B (en) | Horizontal rotary compressor | |
| JP2015045314A (en) | Compressor and air conditioner | |
| CN203285685U (en) | Scroll compressor | |
| CN104870820B (en) | Lubricating oil vane pump | |
| CN113482932A (en) | Rotary compressor and refrigeration equipment | |
| CN206054235U (en) | For oil component and the compressor with which of freezer compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |