CN204851509U - Plunger pump oil inlet amount control valve, oil pump assembly - Google Patents
Plunger pump oil inlet amount control valve, oil pump assembly Download PDFInfo
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- CN204851509U CN204851509U CN201520536435.8U CN201520536435U CN204851509U CN 204851509 U CN204851509 U CN 204851509U CN 201520536435 U CN201520536435 U CN 201520536435U CN 204851509 U CN204851509 U CN 204851509U
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- oil
- hole
- plunger pump
- column sleeve
- control valve
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Abstract
The utility model discloses a plunger pump oil inlet amount control valve, including hole column sleeve and the kong zhu of setting in the column sleeve of hole, hole column sleeve and kong zhuwei idol piece, kong zhu is in by electromagnets dirver slide in the column sleeve of hole, be provided with inlet port and oil outlet on the column sleeve of hole, the last irregularly -shaped hole that is provided with of kong zhu, the irregularly -shaped hole intercommunication inlet port and oil outlet, the irregularly -shaped hole matches along with kong zhu's position change varying flow area with the hole column sleeve. And set up the oil pump assembly of plunger pump oil inlet amount control valve at the plunger pump front end. The utility model has the advantages of simple structure, convenient assembling, low in production cost, regulation are effectual, energy -concerving and environment -protective. The utility model discloses a needs that can satisfy each operating mode of double fuel internal -combustion engine when full diesel engine works again can be satisfied in the method of the plunger pump oil inlet amount control valve control fuel supply of plunger pump oil feed end to the setting.
Description
Technical field
The utility model relates to the diesel oil supply system of a kind of double fuel (diesel oil ignited rock gas) internal-combustion engine, particularly relates to a kind of plunger pump oil inlet quantity control valve and oil pump assy.
Background technique
At present, known rock gas internal-combustion engine is a kind of ignition internal combustion engine utilizing spark plug to light rock gas, remains intrinsic rock gas internal combustion engine performance.And emerging a kind of rock gas internal-combustion engine utilizes diesel oil compression ignite characteristic to ignite rock gas, maintain the characteristic of original diesel engine, be called bi-fuel internal combustion engine by the public, its maximum feature must keep the characteristic of original diesel engine.Simultaneously when full diesel oil work, meet the operating mode of original diesel engine.
Bi-fuel internal combustion engine has two cover fuel systems, natural gas supply system and diesel oil supply system, natural gas supply system mainly contains the compositions such as natural storage tank, reduction valve, pressure maintaining valve (vaporizer LNG), gas metering control unit and mixer (or gas nozzle).Diesel oil supply system still utilizes the fuel supply system on former diesel engine, is made up of fuel tank, oil pump assy, injector assembly, diesel fuel filter, high low pressure oil circuit etc.
Oil pump assy comprises again the compositions such as oil transfer pump, plunger pump, speed regulator, outlet valve, advancing device.Oil transfer pump sucks diesel oil from fuel tank, exports low pressure oil be supplied to plunger pump through low pressure oil way.The low pressure diesel that plunger pump inputs oil transfer pump, burning chamber of diesel engine is sprayed into by outlet valve through high-pressure oil passage supply injector assembly after pressurizeing, compression ignite diesel oil when diesel engine piston moves upward in cylinder, by by the rock gas in the diesel oil ignited cylinder of compression ignite, internal-combustion engine does work.Internal-combustion engine operationally, again by pump governor, to automatically adjust fuel delivery in engine load situation of change, runs with stable internal-combustion engine rotational speed.
In order to ensure that diesel powered exports, the fuel delivery of oil transfer pump must provide enough fuel deliveries, when being generally diesel engine maximum power output, give plunger pump for 3 to 5 times of required diesel oil amount, to ensure that plunger pump is full of diesel oil in suction diesel oil process, plunger pump sucks the Power output of how many decision diesel engines of diesel oil amount.Plunger pump oil absorption is by the oil inlet hole determining positions on plunger bushing corresponding to the oil-feed skewed slot position on plunger cylindrical, and the rotation of plunger oil-feed skewed slot is moved by accelerator rod to change its oil-feed skewed slot to the oil inlet hole position on plunger bushing.
The control mode of the diesel oil ignited oil mass of current domestic bi-fuel internal combustion engine mainly contains two kinds, one be, fixing accelerator rod is in a certain position, the Pilot diesel quantity of homeostasis is provided, its shortcoming is: Pilot diesel flow rate and the air fuel ratio that can only meet single operating point, in idling and other operating point working procedure oil, gas consumption is high, substitution rate is low, and internal combustion engine tail gas discharge value is high, automatically can not recover the full diesel oil work with instantaneous recovery.Two be, diesel oil ignited oil mass do not controlled, directly add rock gas, utilize diesel engine performance characteristic, enforceable diesel oil ignited oil mass reduction, its shortcoming is: can not implement desirable air fuel ratio, and the total energy consumption of bavin oil and gas is high, when load becomes, cannot realize the control of Pilot diesel flow rate, substitution rate is low, belongs to a kind of control of diesel pilot supply of passivity.Its disadvantage existed is acceleration, deceleration poor performance, and easily make internal-combustion engine hypervelocity occur and stop working, cannot implement the automatic control of Pilot diesel quantity and natural air demand, internal combustion engine tail gas discharge value is high, and dynamic response speed is slow.
Model utility content
The utility model object is to provide for the defect of prior art the plunger pump oil inlet quantity control valve that a kind of structure is simple, easy to assembly, cost of production is low, regulating effect is good, energy-conserving and environment-protective are applicable to bi-fuel internal combustion engine.
The utility model for achieving the above object, adopts following technological scheme:
A kind of plunger pump oil inlet quantity control valve, is characterized in that: comprise hole column sleeve and be arranged on the Kong Zhu in the column sleeve of hole, described hole column sleeve and Kong Zhuwei couple, described Kong Zhu is slided in the column sleeve of described hole by solenoid actuated; Described hole column sleeve is provided with oil inlet hole and oil outlet, described Kong Zhu is provided with irregularly-shaped hole, described irregularly-shaped hole is communicated with described oil inlet hole and oil outlet, and described irregularly-shaped hole matches with hole column sleeve along with the change in location of Kong Zhu changes discharge area.
It is further characterized in that: described hole column sleeve inwall circumference has oil-feed tank, and described oil-feed tank is connected with the oil inlet hole of hole column sleeve outer wall; Described oil outlet is arranged on bottom the column sleeve of hole, communicates with hole post inner chamber; On described Kong Zhu, irregularly-shaped hole is arranged on the post jamb of hole, and oil-feed tank and hole post inner chamber are communicated, and the irregularly-shaped hole on described oil-feed tank and Kong Zhu matches, and changes oil-feed discharge area.
Further: be provided with return spring in the post inner chamber of described hole, described return spring and electromagnet match, make described Kong Zhu in hole column sleeve inner position.
Preferred: described irregularly-shaped hole comprises rectangular section and triangular sections; Described Kong Zhu is when initial position, and rectangular section communicates with oil-feed tank, and discharge area is maximum; When described hole post triangular sections communicates with oil-feed tank, discharge area reduces gradually.
Described irregularly-shaped hole rectangular section width equals oil-feed tank width.
A kind of oil pump assy, comprises oil transfer pump, plunger pump, control gear, it is characterized in that: described oil pump assy also comprises above-mentioned plunger pump oil inlet quantity control valve; Described oil transfer pump is connected with plunger pump, by the fuel delivery in fuel tank to plunger pump; Described plunger pump oil inlet quantity control valve, on the output pipe of oil transfer pump, controls plunger pump oil inlet quantity; Described control gear is for controlling described plunger pump oil inlet quantity control valve aperture; Described plunger pump exports high pressure fuel supply injector assembly.
Described control gear is accelerator rod and speed regulator
A kind of controlling method of bi-fuel internal combustion engine oil pump assy fuel delivery, oil transfer pump provides low-voltage fuel for plunger pump, plunger pump provides high pressure fuel to injector assembly, it is characterized in that: the output pipe of described oil transfer pump is provided with plunger pump oil inlet quantity control valve, controls plunger pump oil inlet quantity.
When full fuel oil service state, described plunger pump oil inlet quantity control valve rectangular section communicates with oil-feed tank; When double fuel working state, described plunger pump oil inlet quantity control valve triangular sections communicates with oil-feed tank
On irregularly-shaped hole on the utility model plunger pump oil inlet quantity control valve passing hole post and hole column sleeve, oil inlet passage matches, and the mobile of passing hole post changes oil-feed discharge area, thus fuel supply volume when meeting the various operating mode of bi-fuel internal combustion engine.Maximum in starting stage discharge area, its flow meets maximum oil transportation amount during diesel engine work.When hole post triangular sections communicates with oil-feed tank, its flow is adapted to double fuel operating mode.The utility model has the advantages such as structure is simple, easy to assembly, cost of production is low, regulating effect is good, energy-conserving and environment-protective.The utility model adopts the plunger pump oil inlet quantity control valve being arranged on plunger pump oil inlet end to control the method for fuel oil supply, can meet again the needs of each operating mode of double fuel (diesel oil ignited rock gas) internal-combustion engine while can meeting full diesel engine operation.
Accompanying drawing explanation
Fig. 1 is the utility model plunger pump oil inlet quantity control valve structural representation (full fuel oil service state).
View when Fig. 2 is plunger pump oil inlet quantity control valve double fuel operating mode.
Fig. 3 is that the duel fuel engine comprising oil pump assy controls schematic diagram.
Embodiment
A plunger pump oil inlet quantity control valve as shown in Figure 1, the hole post 4 comprising hole column sleeve 1 and be arranged in hole column sleeve 1, described hole column sleeve 1 and hole post 4 are couple, and described hole post 4 is driven by electromagnet 9 and slides in described hole column sleeve 1; Described hole column sleeve 1 is provided with oil inlet hole 2 and oil outlet 6, described hole post 4 is provided with irregularly-shaped hole 7, described hole column sleeve 1 inwall circumference has oil-feed tank 3, and described oil-feed tank 3 is connected with the oil inlet hole 2 of hole column sleeve 1 outer wall; Described oil outlet 6 is arranged on bottom hole column sleeve 1, communicates with hole post 4 inner chamber; On described hole post 4, irregularly-shaped hole 7 is arranged on hole post 4 wall, and oil-feed tank 3 and hole post 4 inner chamber are communicated, and the irregularly-shaped hole 7 on described oil-feed tank 3 and hole post 4 matches, and changes oil-feed discharge area.Be provided with return spring 5 in post 4 inner chamber of described hole, described return spring 5 and electromagnet 9 match, and make described hole post 4 in hole column sleeve 1 inner position.Described irregularly-shaped hole 7 comprises rectangular section and triangular sections; Described hole post 4 is when initial position, and rectangular section communicates with oil-feed tank 3, and discharge area is maximum; When described hole post 4 triangular sections communicates with oil-feed tank 3, discharge area reduces gradually.Described irregularly-shaped hole 7 rectangular section width equals oil-feed tank 3 width.
When electromagnet 9 is not energized, under return spring 5 active force, hole post 4 moves to the right, the oil inlet hole 2 of diesel oil on via hole column sleeve 1 enters oil-feed tank 3, by the irregularly-shaped hole 7 on oil-feed tank 3 access aperture post 4, (be now peak rate of flow area, its flow meets maximum oil transportation amount during diesel engine work) is fuel-displaced from hole column sleeve 1 inner chamber oil outlet 6 again, enters plunger pump.When double fuel works, electromagnet 9 is energized, and electromagnetic force overcomes return spring 5 active force makes hole post 4 be moved to the left, thus changes the position of irregularly-shaped hole 7 pairs of oil-feed tanks 3, adjust flux.The position be moved to the left, is determined by the electric current acted on electromagnet coil and voltage.Utilize the oil inlet quantity of plunger pump to control the oil pump capacity of plunger pump, thus implement the Pilot diesel quantity of internal-combustion engine at each operating point.
A kind of oil pump assy 10, comprise oil transfer pump 12, plunger pump oil inlet quantity control valve 14, plunger pump 17, accelerator rod 15 and speed regulator 16, described oil transfer pump 12 is connected with plunger pump 17, by the fuel delivery in fuel tank 11 to plunger pump 14; Described plunger pump oil inlet quantity control valve 14, on the output pipe of oil transfer pump 12, controls plunger pump 17 oil inlet quantity; Described accelerator rod 15 controls plunger pump oil inlet quantity control valve 14 aperture by speed regulator 16; Described plunger pump 17 exports the fuel nozzle 18 of high pressure fuel supply injector assembly.During double fuel operating mode, fuel nozzle 18 and gas nozzle 19 co-operation.
A kind of controlling method of bi-fuel internal combustion engine oil pump assy fuel delivery, oil transfer pump provides low-voltage fuel for plunger pump, plunger pump provides high pressure fuel to injector assembly, on the output pipe of described oil transfer pump, the in-line of plunger pump is provided with plunger pump oil inlet quantity control valve, controls plunger pump oil inlet quantity.
Every technician's notice: although the utility model describes according to above-mentioned embodiment; but model utility thought of the present utility model is not limited in this model utility; the repacking of any utilization the utility model thought, all will include in this patent scope of patent protection.
Claims (7)
1. a plunger pump oil inlet quantity control valve, is characterized in that: comprise hole column sleeve and be arranged on the Kong Zhu in the column sleeve of hole, described hole column sleeve and Kong Zhuwei couple, described Kong Zhu is slided in the column sleeve of described hole by solenoid actuated; Described hole column sleeve is provided with oil inlet hole and oil outlet, described Kong Zhu is provided with irregularly-shaped hole, described irregularly-shaped hole is communicated with described oil inlet hole and oil outlet, and described irregularly-shaped hole matches with hole column sleeve along with the change in location of Kong Zhu changes discharge area.
2. plunger pump oil inlet quantity control valve according to claim 1, is characterized in that: described hole column sleeve inwall circumference has oil-feed tank, and described oil-feed tank is connected with the oil inlet hole of hole column sleeve outer wall; Described oil outlet is arranged on bottom the column sleeve of hole, communicates with hole post inner chamber; On described Kong Zhu, irregularly-shaped hole is arranged on the post jamb of hole, and oil-feed tank and hole post inner chamber are communicated, and the irregularly-shaped hole on described oil-feed tank and Kong Zhu matches, and changes oil-feed discharge area.
3. plunger pump oil inlet quantity control valve according to claim 2, is characterized in that: be provided with return spring in the post inner chamber of described hole, described return spring and electromagnet match, and makes described Kong Zhu in hole column sleeve inner position.
4. the plunger pump oil inlet quantity control valve according to Claims 2 or 3, is characterized in that: described irregularly-shaped hole comprises rectangular section and triangular sections; Described Kong Zhu is when initial position, and rectangular section communicates with oil-feed tank, and discharge area is maximum; When described hole post triangular sections communicates with oil-feed tank, discharge area reduces gradually.
5. plunger pump oil inlet quantity control valve according to claim 4, is characterized in that: described irregularly-shaped hole rectangular section width equals oil-feed tank width.
6. an oil pump assy, comprises oil transfer pump, plunger pump, control gear, it is characterized in that: described oil pump assy also comprises the plunger pump oil inlet quantity control valve as described in any one of claim 1-5; Described oil transfer pump is connected with plunger pump, by the fuel delivery in fuel tank to plunger pump; Described plunger pump oil inlet quantity control valve, on the output pipe of oil transfer pump, controls plunger pump oil inlet quantity; Described control gear is for controlling described plunger pump oil inlet quantity control valve aperture; Described plunger pump exports high pressure fuel supply injector assembly.
7. oil pump assy according to claim 6, is characterized in that: described control gear is accelerator rod and speed regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520536435.8U CN204851509U (en) | 2015-07-22 | 2015-07-22 | Plunger pump oil inlet amount control valve, oil pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520536435.8U CN204851509U (en) | 2015-07-22 | 2015-07-22 | Plunger pump oil inlet amount control valve, oil pump assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204851509U true CN204851509U (en) | 2015-12-09 |
Family
ID=54742063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520536435.8U Expired - Fee Related CN204851509U (en) | 2015-07-22 | 2015-07-22 | Plunger pump oil inlet amount control valve, oil pump assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204851509U (en) |
-
2015
- 2015-07-22 CN CN201520536435.8U patent/CN204851509U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 214000 Jiangsu city of Wuxi province Liangxi Qingyang Road District No. 7 room 402, dormitory Education Patentee after: Ren Yihu Patentee after: Ren Hao Address before: 214000, room 138, No. two, garden 402, Changjiang North Road, Wuxi New District, Jiangsu, Taihu Patentee before: Ren Yihu Patentee before: Ren Hao |
|
| 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: 20151209 Termination date: 20190722 |