CN102734014A - High-pressure fuel oil supplying device for diesel vehicle - Google Patents
High-pressure fuel oil supplying device for diesel vehicle Download PDFInfo
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- CN102734014A CN102734014A CN2012102014724A CN201210201472A CN102734014A CN 102734014 A CN102734014 A CN 102734014A CN 2012102014724 A CN2012102014724 A CN 2012102014724A CN 201210201472 A CN201210201472 A CN 201210201472A CN 102734014 A CN102734014 A CN 102734014A
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Abstract
The invention discloses a high-pressure fuel oil supplying device for a diesel vehicle. The high-pressure fuel oil supplying device is arranged on the inner side of a steel plate spring of the diesel vehicle, and comprises a plunger pump swinging arm, a plunger oil pump, a plunger pump oil inlet one-way valve, an oil tank, a high-pressure oil pump, a high-pressure oil pump oil conveying one-way valve, a plunger pump oil conveying one-way valve, a fuel oil pressure-limiting valve, a nozzle and a pressure sensor. Due to the adoption of the high-pressure fuel oil supplying device, the working time of the high-pressure oil pump can be shortened, and the energy consumption of an oil supplying system is reduced; the vibration of the vehicle can be absorbed, and mechanical energy is transformed into hydraulic energy; plunger pumps on both sides are used for supplying oil simultaneously, so that continuous oil supplying is ensured; the oil supplying pressure is constant, and work is reliable; and moreover, the structure is simple, and the manufacturing cost is low.
Description
Technical field
The present invention relates to a kind of diesel-oil vehicle parts, relate in particular to a kind of diesel-oil vehicle high pressure fuel supplier.
Background technique
At present, the general high pressure oil pump that adopts carries out fuel feeding to motor in the diesel-oil vehicle oil supply system, because high pressure oil pump drives by the cam rotation of motor, does not constantly stop work and makes oil supply system and can expend quite a few energy of diesel-oil vehicle.In addition, in the diesel-oil vehicle cruising, have up-down vibration and impact all the time, smoothness is relatively poor relatively.
Summary of the invention
The objective of the invention is to deficiency, a kind of diesel-oil vehicle high pressure fuel supplier is provided to existing technology.
The objective of the invention is to realize: a kind of diesel-oil vehicle high pressure fuel supplier through following technological scheme; Be arranged in the inboard of diesel-oil vehicle leaf spring, it comprises: plunger pump rocking arm, plunger-type fuel pump, plunger pump in line check valve, fuel tank, high pressure oil pump, high pressure oil pump oil transportation one-way valve, plunger pump oil transportation one-way valve, fuel oil pressure-limit valve, nozzle and pressure transducer.Wherein, plunger pump rocking arm and plunger-type fuel pump respectively have two, and plunger pump rocking arm and the coaxial installation of the grasswort of automobile leaf spring also are positioned at the inboard of leaf spring, and be pressed against on the plunger.Plunger-type fuel pump is installed on the vehicle frame through screw pair.Draw two oil circuit branches from the oil transportation mouth of fuel tank and be clipped to plunger-type fuel pump and high pressure oil pump, to the oil circuit of plunger-type fuel pump, the plunger pump in line check valve is installed at fuel tank.Plunger pump in line check valve, plunger-type fuel pump, plunger pump oil transportation one-way valve are connected successively; After connecting with high pressure oil pump oil transportation one-way valve, high pressure oil pump forms parallelly connected oil circuit with plunger pump in line check valve, plunger-type fuel pump, plunger pump oil transportation one-way valve; On pipeline, draw four oil circuits after the oil circuit parallel connection again and be connected respectively to fuel oil pressure-limit valve, fuel oil accumulator, pressure transducer and nozzle; The effluent head of fuel oil pressure-limit valve communicates with the top filler opening of fuel tank.
Further, plunger-type fuel pump comprises: plunger, plunger pump cover, plunges pump body, fixed triangle plate, plunger pump spring, plunger pump base plate and connecting rod.Plunger pump cover, plunges pump body and plunger pump base plate are consolidated into one with connecting rod; The plunger pump spring is installed in the inner chamber of plunges pump body; Plunger is supported on the plunger pump spring, and can be free movable in the chamber that plunger pump cover, plunges pump body and plunger pump base plate constitute; Be welded with four fixed triangle plates on the middle axial plane of plunges pump body, fixed triangle plate and frame adopt the screw pair location.
Further, the fuel oil pressure-limit valve comprises: pressure regulating screw, pressure limiting valve gap, spring seat, limiting valve spring, slide valve and pressure limiting valve body.Pressure limiting valve gap and pressure-limit valve body and function bolt link together; Slide valve moves up and down in the pressure limiting valve body, and limiting valve spring is installed in slide valve, and spring seat is withstood in the upper end of pressure limiting spring; Cover at pressure-limit valve pressure regulating screw is installed, spring seat is resisted against on the pressure regulating screw.
Further, the fuel oil accumulator comprises: air valve cover, air valve body, anti-extrusion rings, accumulator housing, air bag, poppet, accumulator hydraulic fluid port.The air valve enclosure is on air valve body, and air valve body, accumulator housing and accumulator hydraulic fluid port are integrally welded, seal with anti-extrusion rings at weld, under the air valve body air bag are installed, and poppet is installed in the accumulator oil port.
The invention has the beneficial effects as follows:
1, reduces the operating time of high pressure oil pump, save the energy consumption of oil supply system;
2, absorb the vibration of vehicle, mechanical energy is converted into hydraulic pressure can;
3, both sides plunger pump while fuel feeding guarantees that fuel feeding is continuous;
4, guarantee that charge oil pressure is constant, reliable operation;
5, simple in structure, low cost of manufacture.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the sectional view of plunger-type fuel pump;
Fig. 3 is the left view of plunger-type fuel pump;
Fig. 4 is the plan view of plunger-type fuel pump,
Fig. 5 is the structural representation of fuel oil pressure-limit valve;
Fig. 6 is the fuel oil accumulator;
Among the figure: 1, plunger pump rocking arm, 2, plunger-type fuel pump, 3, the plunger pump in line check valve, 4, fuel tank, 5, high pressure oil pump, 6, high pressure oil pump oil transportation one-way valve; 7, plunger pump oil transportation one-way valve, 8, the fuel oil pressure-limit valve, 9, nozzle, 10, the fuel oil accumulator, 11, pressure transducer; 12, plunger, 13, the plunger pump cover, 14, plunges pump body, 15, the fixed triangle plate, 16, the plunger pump spring; 17, plunger pump base plate, 18, connecting rod, 19, pressure regulating screw, 20, the pressure limiting valve gap, 21, spring seat; 22, limiting valve spring, 23, slide valve, 24, the pressure limiting valve body, 25, the air valve cover, 26, air valve body; 27, anti-extrusion rings, 28, the accumulator housing, 29, air bag, 30, poppet, 31, the accumulator hydraulic fluid port.
Embodiment
Specify the present invention according to accompanying drawing below, the object of the invention and effect will become more apparent.
As shown in Figure 1, diesel-oil vehicle high pressure fuel supplier of the present invention comprises: plunger pump rocking arm 1, plunger-type fuel pump 2, plunger pump in line check valve 3, fuel tank 4, high pressure oil pump 5, high pressure oil pump oil transportation one-way valve 6, plunger pump oil transportation one-way valve 7, fuel oil pressure-limit valve 8, fuel oil accumulator 9, nozzle 10 and pressure transducer 11.Wherein, plunger pump rocking arm 1 respectively has two with plunger-type fuel pump 2, and plunger pump rocking arm 1 and the coaxial installation of the grasswort of automobile leaf spring also are positioned at the inboard of leaf spring, and be pressed against on the plunger 12.Plunger-type fuel pump 2 is installed on the vehicle frame through screw pair.Draw two oil circuit branches from the oil transportation mouth of fuel tank 4 and be clipped to plunger-type fuel pump 2 and high pressure oil pump 5, to the oil circuit of plunger-type fuel pump 2, plunger pump in line check valve 3 is installed at fuel tank 4.Plunger pump in line check valve 3, plunger-type fuel pump 2, plunger pump oil transportation one-way valve 7 are connected successively; High pressure oil pump 5 is connected back with high pressure oil pump oil transportation one-way valve 6 and plunger pump in line check valve 3, plunger-type fuel pump 2, plunger pump oil transportation one-way valve 7 form parallelly connected oil circuit; On pipeline, draw four oil circuits after the oil circuit parallel connection again and be connected respectively to fuel oil pressure-limit valve 8, fuel oil accumulator 9, pressure transducer 11 and nozzle 10.The effluent head of fuel oil pressure-limit valve 8 communicates with the top filler opening of fuel tank 4.
Shown in Fig. 2-4, plunger-type fuel pump 2 comprises: plunger 12, plunger pump cover 13, plunges pump body 14, fixed triangle plate 15, plunger pump spring 16, plunger pump base plate 17 and connecting rod 18.Plunger pump cover 13, plunges pump body 14 and plunger pump base plate 17 usefulness connecting rods 18 are consolidated into one; Plunger pump spring 17 is installed in the inner chamber of plunges pump body 14; Plunger 12 is supported on the plunger pump spring 17, and can be free movable in the chamber that plunger pump cover 13, plunges pump body 14 and plunger pump base plate 17 constitute; Be welded with four fixed triangle plates 15 on the middle axial plane of plunges pump body 14, fixed triangle plate 15 adopts the screw pair location with frame.
As shown in Figure 5, fuel oil pressure-limit valve 8 comprises: pressure regulating screw 19, pressure limiting valve gap 20, spring seat 21, limiting valve spring 22, slide valve 23 and pressure limiting valve body 24.Pressure limiting valve gap 20 links together with pressure limiting valve body 24 usefulness bolts; Slide valve 23 moves up and down in pressure limiting valve body 24; Limiting valve spring 22 is installed in slide valve 23; Spring seat 21 is withstood in the upper end of pressure limiting spring 22, and pressure regulating screw 19 is installed on pressure limiting valve gap 20, and spring seat 21 is resisted against on the pressure regulating screw 19.
As shown in Figure 6, fuel oil accumulator 9 comprises: air valve cover 25, air valve body 26, anti-extrusion rings 27, accumulator housing 28, air bag 29, poppet 30, accumulator hydraulic fluid port 31.Air valve cover 25 is enclosed within on the air valve body 26, and air valve body 26, accumulator housing 28 and accumulator hydraulic fluid port 31 are integrally welded, and with anti-extrusion rings 27 sealings, air valve body is equipped with air bag 29 26 times at weld, and poppet 30 is installed in accumulator hydraulic fluid port 31 places.
Working procedure of the present invention is following: the fuel feeding of motor is divided into dual mode, and a kind of is the independent fuel feeding of plunger-type fuel pump 2 fuel feeding, and a kind of is high pressure oil pump 5 and 2 while of plunger-type fuel pump fuel feeding fuel feeding, the work of ECU control high pressure oil pump 5.In the fuel feeding process, plunger-type fuel pump 2 is in running order all the time.When the oil pressure that monitors total oil circuit when pressure transducer 11 is less than or equal to injection back pressure; 5 work of ECU control high pressure oil pump; High pressure oil pump 5 oil transportation in pipeline; Fuel oil mixes back entering nozzle 10 through high pressure oil pump oil transportation one-way valve 6 with fuel oil from plunger-type fuel pump 2, constant with the maintenance injection pressure; When pressure transducer 11 monitored total oil circuit oil pressure above injection back pressure, ECU stopped high pressure oil pump 5 work, because when vehicle driving; The continuous up-down vibration of leaf spring meeting of diesel-oil vehicle; When leaf spring was up, up with the coaxial installation plunger pump of the grasswort of leaf spring rocking arm 1, plunger 12 received that the effect of plunger pump spring 16 also can be up thereupon; In plunger-type fuel pump 2, form low pressure chamber, fuel oil is inhaled into plunger-type fuel pump 2 through plunger pump in line check valve 3 from fuel tank 4; When leaf spring was descending, plunger pump rocking arm 1 was also descending, and extruding plunger 12 is descending, and the fuel oil of plunger-type fuel pump 2 is compressed the generation high pressure, got into nozzle 10 through plunger pump oil transportation one-way valve 7, so moved in circles, constantly to nozzle 10 fuel feeding; Because two covers about plunger-type fuel pump 2 is divided into, when road traveling, the road roughness of left and right side wheel can be not consistent, so can realize alternately fuel feeding, guarantees the continuity of plunger pump fuel feeding; Nozzle 10 front ends are equipped with fuel oil pressure-limit valve 8 and fuel oil accumulator 9, and the position of the pressure regulating screw 19 through regulating fuel oil pressure-limit valve 8 can limit the jet pressure of fuel oil, when the jet pressure of fuel oil surpasses the setting value of fuel oil pressure-limit valve 8; Limiting valve spring 22 is compressed, and slide valve 23 moves up, and opens the flow-off of fuel oil pressure-limit valve 8; Unnecessary fuel oil flows back to fuel tank 4, and the jet pressure of fuel oil descends, and limiting valve spring 22 resets thereupon; Flow-off is plugged, and realizes pressurize; Filling pressurized gas in the air bag 29 of fuel oil accumulator 9, its force value also is a fuel-injection pressure, when there is pulsation in jet pressure; Because the elastic reaction of air bag; Pulsation can be absorbed, and guarantees the constant of fuel-injection pressure, works as fuel delivery in addition and occurs suddenly interrupting; Because the accumulation of energy and the pressurize effect of fuel oil accumulator 9 can guarantee that diesel engine still can proper functioning at short notice.
Claims (4)
1. diesel-oil vehicle high pressure fuel supplier; Be arranged in the inboard of diesel-oil vehicle leaf spring; It is characterized in that it comprises: plunger pump rocking arm (1), plunger-type fuel pump (2), plunger pump in line check valve (3), fuel tank (4), high pressure oil pump (5), high pressure oil pump oil transportation one-way valve (6), plunger pump oil transportation one-way valve (7), fuel oil pressure-limit valve (8), fuel oil accumulator (9), nozzle (10) and pressure transducer (11) etc.; Wherein, plunger pump rocking arm (1) and plunger-type fuel pump (2) respectively have two, and plunger pump rocking arm (1) and the coaxial installation of the grasswort of automobile leaf spring also are positioned at the inboard of leaf spring, and be pressed against on the plunger (12); Plunger-type fuel pump (2) is installed on the vehicle frame through screw pair; Draw two oil circuit branches from the oil transportation mouth of fuel tank (4) and be clipped to plunger-type fuel pump (2) and high pressure oil pump (5), to the oil circuit of plunger-type fuel pump (2), plunger pump in line check valve (3) is installed at fuel tank (4); Plunger pump in line check valve (3), plunger-type fuel pump (2), plunger pump oil transportation one-way valve (7) are connected successively; After connecting with high pressure oil pump oil transportation one-way valve (6), high pressure oil pump (5) forms parallelly connected oil circuit with plunger pump in line check valve (3), plunger-type fuel pump (2), plunger pump oil transportation one-way valve (7); On pipeline, draw four oil circuits after the oil circuit parallel connection again and be connected respectively to fuel oil pressure-limit valve (8), fuel oil accumulator (9), pressure transducer (11) and nozzle (10); The effluent head of fuel oil pressure-limit valve (8) communicates with the top filler opening of fuel tank (4).
2. a kind of diesel-oil vehicle high pressure fuel supplier according to claim 1; It is characterized in that described plunger-type fuel pump (2) comprising: plunger (12), plunger pump cover (13), plunges pump body (14), fixed triangle plate (15), plunger pump spring (16), plunger pump base plate (17) and connecting rod (18); Plunger pump cover (13), plunges pump body (14) and plunger pump base plate (17) are consolidated into one with connecting rod (18); Plunger pump spring (17) is installed in the inner chamber of plunges pump body (14); Plunger (12) is supported on the plunger pump spring (17), and can be free movable in the chamber that plunger pump cover (13), plunges pump body (14) and plunger pump base plate (17) constitute; Be welded with four fixed triangle plates (15) on the middle axial plane of plunges pump body (14), fixed triangle plate (15) adopts the screw pair location with frame.
3. a kind of diesel-oil vehicle high pressure fuel supplier according to claim 1; It is characterized in that described fuel oil pressure-limit valve (8) comprising: pressure regulating screw (19), pressure limiting valve gap (20), spring seat (21), limiting valve spring (22), slide valve (23) and pressure limiting valve body (24) etc.; Pressure limiting valve gap (20) links together with bolt with pressure limiting valve body (24); Slide valve (23) moves up and down in pressure limiting valve body (24); Limiting valve spring (22) is installed in slide valve (23); Spring seat (21) is withstood in the upper end of pressure limiting spring (22), and pressure regulating screw (19) is installed on pressure limiting valve gap (20), and spring seat (21) is resisted against on the pressure regulating screw (19).
4. a kind of diesel-oil vehicle high pressure fuel supplier according to claim 1; It is characterized in that described fuel oil accumulator (9) comprising: air valve cover (25), air valve body (26), anti-extrusion rings (27), accumulator housing (28), air bag (29), poppet (30) and accumulator hydraulic fluid port (31) etc.; Air valve cover (25) is enclosed within on the air valve body (26); Air valve body (26), accumulator housing (28) and accumulator hydraulic fluid port (31) are integrally welded; Seal with anti-extrusion rings (27) at weld; Air bag (29) is installed under the air valve body (26), and poppet (30) is installed in accumulator hydraulic fluid port (31) and locates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102014724A CN102734014A (en) | 2012-06-19 | 2012-06-19 | High-pressure fuel oil supplying device for diesel vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102014724A CN102734014A (en) | 2012-06-19 | 2012-06-19 | High-pressure fuel oil supplying device for diesel vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102734014A true CN102734014A (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102014724A Pending CN102734014A (en) | 2012-06-19 | 2012-06-19 | High-pressure fuel oil supplying device for diesel vehicle |
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| CN (1) | CN102734014A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4978218A (en) * | 1972-11-04 | 1974-07-27 | ||
| JPH07119573A (en) * | 1993-03-01 | 1995-05-09 | Toyota Motor Corp | Fuel supplying device for internal combustion engine |
| JPH0978218A (en) * | 1995-09-18 | 1997-03-25 | Mitsubishi Materials Corp | Nickel-base alloy plasma sprayed coating film excellent in wear resistance and corrosion resistance |
| JP2000352365A (en) * | 1999-06-10 | 2000-12-19 | Hitachi Constr Mach Co Ltd | Fuel supply system for engine |
| JP2002155824A (en) * | 2000-09-29 | 2002-05-31 | Robert Bosch Gmbh | Fuel supply system for internal combustion engine |
| DE10141038A1 (en) * | 2001-08-22 | 2003-03-20 | Ktm Sportmotorcycle Ag Mattigh | Fuel supply system for kick-start motor bike, has low pressure electrical pump for starting and high pressure mechanical pump for running |
| CN2541620Y (en) * | 2002-05-11 | 2003-03-26 | 易斌 | Fuel transfer pump of diesel engine |
| CN100486824C (en) * | 2003-12-08 | 2009-05-13 | 上海汇众汽车制造有限公司 | Energy storage driving pendant in motor |
| CN101639055A (en) * | 2009-07-09 | 2010-02-03 | 岳晋卿 | Kinetic energy recovery system of vehicles |
| CN101844498A (en) * | 2010-05-28 | 2010-09-29 | 江苏大学 | Semiactive/active composite control suspension without external power source and control method thereof |
-
2012
- 2012-06-19 CN CN2012102014724A patent/CN102734014A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4978218A (en) * | 1972-11-04 | 1974-07-27 | ||
| JPH07119573A (en) * | 1993-03-01 | 1995-05-09 | Toyota Motor Corp | Fuel supplying device for internal combustion engine |
| JPH0978218A (en) * | 1995-09-18 | 1997-03-25 | Mitsubishi Materials Corp | Nickel-base alloy plasma sprayed coating film excellent in wear resistance and corrosion resistance |
| JP2000352365A (en) * | 1999-06-10 | 2000-12-19 | Hitachi Constr Mach Co Ltd | Fuel supply system for engine |
| JP2002155824A (en) * | 2000-09-29 | 2002-05-31 | Robert Bosch Gmbh | Fuel supply system for internal combustion engine |
| DE10141038A1 (en) * | 2001-08-22 | 2003-03-20 | Ktm Sportmotorcycle Ag Mattigh | Fuel supply system for kick-start motor bike, has low pressure electrical pump for starting and high pressure mechanical pump for running |
| CN2541620Y (en) * | 2002-05-11 | 2003-03-26 | 易斌 | Fuel transfer pump of diesel engine |
| CN100486824C (en) * | 2003-12-08 | 2009-05-13 | 上海汇众汽车制造有限公司 | Energy storage driving pendant in motor |
| CN101639055A (en) * | 2009-07-09 | 2010-02-03 | 岳晋卿 | Kinetic energy recovery system of vehicles |
| CN101844498A (en) * | 2010-05-28 | 2010-09-29 | 江苏大学 | Semiactive/active composite control suspension without external power source and control method thereof |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121017 |