CN204921227U - Diesel engine is with improving structure single cylinder high -pressure oil pump assembly - Google Patents
Diesel engine is with improving structure single cylinder high -pressure oil pump assembly Download PDFInfo
- Publication number
- CN204921227U CN204921227U CN201520633227.XU CN201520633227U CN204921227U CN 204921227 U CN204921227 U CN 204921227U CN 201520633227 U CN201520633227 U CN 201520633227U CN 204921227 U CN204921227 U CN 204921227U
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- Prior art keywords
- oil
- pump
- parts
- live axle
- pump cover
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- Withdrawn - After Issue
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- 239000000446 fuel Substances 0.000 claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 19
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 239000002283 diesel fuel Substances 0.000 abstract description 18
- 238000012545 processing Methods 0.000 abstract description 10
- 238000001914 filtration Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical class FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 abstract description 3
- 230000003749 cleanliness Effects 0.000 abstract 1
- 238000005461 lubrication Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 238000013461 design Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Abstract
The utility model discloses a diesel engine is with improving structure single cylinder high -pressure oil pump assembly, including whole pump cover parts, oil feed metering valve filter screen, oil feed metering valve, pump body parts, end cover, gleitbretter formula petroleum pump, drive shaft, drive shaft axle bush, thrust washer, gyro wheel axle bush, gyro wheel, flange bearing frame, oil blanket, restriction valve parts, oil return bolt and oil feed bolt parts, the utility model discloses the high -pressure oil pump assembly is single plunger matching parts structure, the drive shaft is single cam roller structure, through changing the fuel feeding ability that cam structure can change high -pressure oil pump, the gyro wheel axle bush uses modified tetrafluoroethene material, has higher wearability, carry out the lubrication of compulsory diesel oil through driving epaxial pore pair gyro wheel axle bush and drive shaft axle bush, increase the filtration, promote the cleanliness of product, the failure rate is lowered, adopt whole pump cover structure, the reliability of high -pressure oil pump under the limiting pressure has been promoted, independent fitting surface processing, the processing degree of difficulty and processing cost is reduced.
Description
Technical field
The utility model belongs to automobile manufacturing field, specifically the match equipment of diesel engine, is the fuel feeding part of high pressure co-rail system.
Background technique
Along with the increasingly stringent of Abgasgesetz, high pressure co-rail system has become the main flow of diesel fuel injection system.High pressure oil pump is the critical component of high pressure co-rail system, and its technical merit directly determines reliability, power character, the Economy of end product.Therefore, what solve high pressure oil pump supplies oil-proofness, supply capability, and installability, processing cost is low, with regard to the problem having become product development to consider.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and provide the high-pressure fuel injection pump assembly of a kind of use for diesel engine modified node method single cylinder, this high pressure oil pump structure is simple, compact, and processing cost is low, and it is convenient to assemble, and coupling flexibly, stablize by fuel feeding.
The purpose of this utility model is achieved through the following technical solutions: the high-pressure fuel injection pump assembly of a kind of use for diesel engine modified node method single cylinder, it is characterized in that, comprise integral pump cover, inlet metering valve filter screen, inlet metering valve, pump parts, end cap, vane fuel supply pump, live axle, live axle bearing shell, thrust washer, roller bearing shell, roller, flange shaft bearing, oil sealing, flow-limiting valve parts, oil return bolt and oil-feed bolt member;
Wherein, described integral pump cover is made up of oil connection seat, oil outlet valve spring, outlet valve steel ball, fastening screw plug, oiling valve block, oiling valve steel ball, oiling valve spring, oiling valve spring seat, piston spring, piston spring seat, piston cap, plunger and overall pump cover; Described oil-feed bolt member is made up of oil-feed bolt, oil-feed bolt filter screen and circlip for hole;
After the mesopore of oil connection seat put into successively by described oil outlet valve spring, outlet valve steel ball, be connected with overall pump cover by screw thread, cut-in type sealing configuration is used between oil connection seat and overall pump cover, the sealed seat surface that outlet valve steel ball is covered by oil outlet valve spring and integral pump is fitted, and forms sealing; After described oiling valve spring seat, oiling valve spring, oiling valve steel ball, oiling valve block put into overall pump cover successively, compressed by fastening screw plug, be threaded connection between fastening screw plug and overall pump cover, cut-in type sealing configuration is used between oiling valve block and overall pump cover, oiling valve steel ball is fitted by the sealed seat surface on oiling valve spring and oiling valve block, forms sealing; After interference fit becomes to be integrated between plunger with piston cap, match with overall pump cover and become couple; Piston spring and piston spring seat are placed between overall pump cover and piston cap; Roller, roller bearing shell are contained on the cam of live axle, from the two ends of live axle, thrust washer, live axle bearing shell are installed to live axle respectively, the live axle after assembling is put into the mesopore of pump parts and flange shaft bearing; Flange shaft bearing is fixedly connected with between pump parts; Oil sealing sealing is passed through between flange shaft bearing and live axle; Vane fuel supply pump is connected with live axle by key, and is placed in the counterbore of pump parts, fixes with pump parts; End cap covers on outside vane fuel supply pump, is fixedly connected with pump parts; Inlet metering filter screen set, in inlet metering valve front end, is fixedly connected with pump parts; Integral pump cover is fixedly connected with pump parts; Oil-feed bolt filter screen puts into oil-feed bolt, is fixed, be connected by screw thread with pump parts by circlip for hole; Oil return bolt is connected with pump parts respectively by screw thread with flow-limiting valve parts.
Further, O-ring seals is used to seal between described fastening screw plug and overall pump cover; Sealed by O-ring seals between flange shaft bearing and pump parts; End cap and pump parts are sealed by O-ring seals; Integral pump cover and pump parts are sealed by O-ring seals.
Further, described live axle is single tappet roller structure.
1. the utility model appearance structure is simple, compact, and required installing space is little, is convenient to install.
2. the utility model design of part is simple, greatly reduces the cost of raw material and processing.
3. the utility model adopts monolithic construction, and structure is more solid and reliable, improves the reliability of high pressure oil pump under ultimate pressure.
4. the utility model extends the working life of easily damaged parts, reduces fault rate.
5. the utility model uses compulsory diesel fuel lubricity, is beneficial to the control of exhaust emission.
Accompanying drawing explanation
Fig. 1 is the main sectional view of structure of the present utility model;
Fig. 2 is structure side sectional view of the present utility model;
Fig. 3 is integral pump cover sectional view;
Fig. 4 is oil-feed bolt member sectional view;
In Fig. 1-2,1 be integral pump cover, 2 be inlet metering valve filter screen, 3 be inlet metering valve, 4 be pump parts, 5 be end cap, 6 be vane fuel supply pump, 7 be live axle, 8 be live axle bearing shell, 9 be thrust washer, 10 be roller bearing shell, 11 be roller, 12 be flange shaft bearing, 13 be oil sealing, 14 be current limliting valve member, 15 be oil return bolt, 16 for oil-feed bolt member;
In Fig. 3,17 be oil connection seat, 18 be oil outlet valve spring, 19 be steel ball, 20 be fastening screw plug, 21 be oiling valve block, 22 be oiling valve spring, 23 be oiling valve spring seat, 24 be piston spring, 25 be piston spring seat, 26 be piston cap, 27 be plunger, 28 for overall pump cover;
In Fig. 4,29 for oil-feed bolt, 30 for oil-feed bolt filter screen, 31 be circlip for hole.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As Figure 1-4, the high-pressure fuel injection pump assembly of a kind of use for diesel engine modified node method of the utility model single cylinder, comprises integral pump cover 1, inlet metering valve filter screen 2, inlet metering valve 3, pump parts 4, end cap 5, vane fuel supply pump 6, live axle 7, live axle bearing shell 8, thrust washer 9, roller bearing shell 10, roller 11, flange shaft bearing 12, oil sealing 13, flow-limiting valve parts 14, oil return bolt 15 and oil-feed bolt member 16;
Wherein, described integral pump cover 1 is made up of oil connection seat 17, oil outlet valve spring 18, outlet valve steel ball 19-1, fastening screw plug 20, oiling valve block 21, oiling valve steel ball 19-2, oiling valve spring 22, oiling valve spring seat 23, piston spring 24, piston spring seat 25, piston cap 26, plunger 27 and overall pump cover 28; Described oil-feed bolt member 16 is made up of oil-feed bolt 29, oil-feed bolt filter screen 30 and circlip for hole 31; Piston cap 26 and plunger 27 form plunger assembly.
After described oil outlet valve spring 18, outlet valve steel ball 19-1 put into the mesopore of oil connection seat 17 successively, be connected with overall pump cover 28 by screw thread, cut-in type sealing configuration is used between oil connection seat 17 and overall pump cover 28, outlet valve steel ball 19-1 fit by the spring-force driven dual of oil outlet valve spring 18 and the sealed seat surface on overall pump cover 28, and formation seals; After described oiling valve spring seat 23, oiling valve spring 22, oiling valve steel ball 19-2, oiling valve block 21 put into overall pump cover 28 successively, compressed by fastening screw plug 20, be threaded connection between fastening screw plug 20 and overall pump cover 28 and use O-ring seals to seal, cut-in type sealing configuration is used between oiling valve block 21 and overall pump cover 28, oiling valve steel ball 19-2 fit by the spring-force driven dual of oiling valve spring 22 and the sealed seat surface on oiling valve block 21, and formation seals; After interference fit becomes to be integrated between plunger 27 with piston cap 26, match with overall pump cover 28 and become couple; Piston spring 24 and piston spring seat 25 are placed between overall pump cover 28 and piston cap 26; Roller 11, roller bearing shell 10 are contained on the cam of live axle 7, from the two ends of live axle 7, thrust washer 9, live axle bearing shell 8 are installed to live axle 7 respectively, the live axle 7 after assembling is put into the mesopore of pump parts 4 and flange shaft bearing 12; Fixed by screw between flange shaft bearing 12 and pump parts 4, sealed by O-ring seals; Sealed by oil sealing 13 between flange shaft bearing 12 and live axle 7; Vane fuel supply pump 6 is connected with live axle 7 by key, and is placed in the counterbore of pump parts 4, is fixed by screw and pump parts 4; End cap 5 covers on outside vane fuel supply pump 6, is fixed, sealed by O-ring seals with pump parts 4 by screw; Inlet metering filter screen 2 is enclosed within inlet metering valve 3 front end, is fixed, sealed by O-ring seals with pump parts 4 by screw; Integral pump cover 1 and pump parts 4 are fixed by screw, are sealed by O-ring seals; Oil-feed bolt filter screen 30 puts into oil-feed bolt 29, is fixed, be connected by screw thread with pump parts 4 by circlip for hole 31; Oil return bolt 15 is connected with pump parts 4 respectively by screw thread with flow-limiting valve parts 14.
The utility model high-pressure fuel injection pump assembly is single plunger couple structure, live axle 7 is single tappet roller structure, the supply capability of high pressure oil pump can be changed by changing cam structure, roller bearing shell 10 uses modification tetrafluoroethylene material, there is higher wear resistance, compulsory diesel fuel lubricity is carried out by the hole pair roller bearing shell 10 on live axle 7 and live axle bearing shell 8, increase filtration, the turbidity test of improving product, reduce rate of fault, adopt overall pump cover structure, improve the reliability of high pressure oil pump under ultimate pressure, independently fitting surface processing, reduce difficulty of processing and processing cost.
Described live axle 7 is single tappet roller structure, cam structure that can be different according to different fuel feeding Demand Design, thus realize the different supply capability of high pressure oil pump, this design is simpler than the camshaft structure of double-cam structure, flexibility is good, and processing cost is low.
Described roller bearing shell 10 uses modification tetrafluoroethylene material, has higher compression strength, wear-resisting, heat conduction good, and thermal expansion coefficient is little, can not with faying surface adhesion, can preserve for a long time, not easily aging, add reliability and the working life of product.
Described single plunger couple structure coordinates with live axle by means of only a secondary plunger coupled parts, and complete fuel feeding, structure is simpler, compact, cost-saving.
Described compulsory diesel fuel lubricity diesel oil is imported respectively live axle 7 and live axle bearing shell 8 by the upper oil circuit of live axle 7 and lubricates between live axle 7 and roller bearing shell 10.
Described filtration is filtered the diesel oil entering low-pressure cavity by oil-feed bolt filter screen 30, inlet metering valve filter screen 2 carries out secondary filter to the diesel oil entering hyperbaric chamber, promote the turbidity test of diesel oil, reduce the rate of fault of part, extend the working life of each workpiece.
Described integrated type pump cover structure, is integrated by split type high pressure pump cover, plunger bushing, and structure is more firm, and the transition decreased between part connects, and enters oil outlet structure and adopts ball-valve structure and cut-in type sealing configuration, seal more safe and reliable.
Working principle of the present utility model is:
Driven by engine live axle 7 rotates, and live axle 7 drives vane fuel supply pump 6 to operate by key; After diesel oil is filtered by the oil-feed bolt filter screen 30 in oil-feed bolt member 16, oil circuit on pump parts 4 enters in vane fuel supply pump 6, after diesel oil is pressurizeed by vane fuel supply pump 6, an oil circuit part on pump parts 4 imports flow-limiting valve parts 14 and pump parts 4 inner chamber, and another part enters inlet metering valve 3 after being filtered by inlet metering valve filter screen 2; The electrical signal of outside input controls the unlatching of inlet metering valve 3, the oil circuit of diesel oil on pump parts 4 enters integral pump cover 1, now, it is descending that plunger assembly follows live axle 7 by the spring-force driven dual of piston spring 24, oil-feed steel ball 19-2 opens, and the oil circuit of diesel oil on overall pump cover 28 and oiling valve block 21 enters into the cavity volume at plunger 27 top; It is up that live axle 7 promotes plunger assembly, oil-feed steel ball 19-2 closedown is formed with the seat surface of oiling valve block 21 and seals, and the pressure in the cavity volume of plunger 27 top raises, and outlet valve steel ball 19-1 opens, diesel oil enters oil pipe through oil connection seat 17, completes a fuel feeding circulation; When inlet metering valve 3 upstream pressure reaches flow-limiting valve parts 14 cracking pressure, diesel oil gets back to oil inlet end by flow-limiting valve parts 14; High pressure oil pump lubricating system is diesel fuel lubricity, and diesel oil imports pump parts 4 inner chamber by vane fuel supply pump 6, and the diesel oil entering pump housing inner chamber gets back to fuel tank by oil return bolt 15.
The utility model is applied in the oil common rail system of Light-duty Vehicle, and can mate the motor of below 70KW flexibly, fuel feeding efficiency can reach 85%.
Claims (3)
1. use for diesel engine modified node method single cylinder high-pressure fuel injection pump assembly, it is characterized in that, comprise integral pump cover (1), inlet metering valve filter screen (2), inlet metering valve (3), pump parts (4), end cap (5), vane fuel supply pump (6), live axle (7), live axle bearing shell (8), thrust washer (9), roller bearing shell (10), roller (11), flange shaft bearing (12), oil sealing (13), flow-limiting valve parts (14), oil return bolt (15) and oil-feed bolt member (16);
Wherein, described integral pump cover (1) is made up of oil connection seat (17), oil outlet valve spring (18), outlet valve steel ball (19-1), fastening screw plug (20), oiling valve block (21), oiling valve steel ball (19-2), oiling valve spring (22), oiling valve spring seat (23), piston spring (24), piston spring seat (25), piston cap (26), plunger (27) and overall pump cover (28); Described oil-feed bolt member (16) is made up of oil-feed bolt (29), oil-feed bolt filter screen (30) and circlip for hole (31);
After the mesopore of oil connection seat (17) put into successively by described oil outlet valve spring (18), outlet valve steel ball (19-1), be connected with overall pump cover (28) by screw thread, cut-in type sealing configuration is used between oil connection seat (17) and overall pump cover (28), outlet valve steel ball (19-1) is fitted by oil outlet valve spring (18) and the sealed seat surface on overall pump cover (28), forms sealing; After described oiling valve spring seat (23), oiling valve spring (22), oiling valve steel ball (19-2), oiling valve block (21) put into overall pump cover (28) successively, compressed by fastening screw plug (20), be threaded connection between fastening screw plug (20) and overall pump cover (28), cut-in type sealing configuration is used between oiling valve block (21) and overall pump cover (28), oiling valve steel ball (19-2) is fitted by oiling valve spring (22) and the sealed seat surface on oiling valve block (21), forms sealing; After interference fit becomes to be integrated between plunger (27) with piston cap (26), match with overall pump cover (28) and become couple; Piston spring (24) and piston spring seat (25) are placed between overall pump cover (28) and piston cap (26); Roller (11), roller bearing shell (10) are contained on the cam of live axle (7), from the two ends of live axle (7), thrust washer (9), live axle bearing shell (8) are installed to live axle (7) respectively, the live axle (7) after assembling is put into the mesopore of pump parts (4) and flange shaft bearing (12); Be fixedly connected with between flange shaft bearing (12) with pump parts (4); Sealed by oil sealing (13) between flange shaft bearing (12) and live axle (7); Vane fuel supply pump (6) is connected with live axle (7) by key, and is placed in the counterbore of pump parts (4), fixes with pump parts (4); End cap (5) covers on vane fuel supply pump (6) outside, is fixedly connected with pump parts (4); Inlet metering filter screen (2) is enclosed within inlet metering valve (3) front end, is fixedly connected with pump parts (4); Integral pump cover (1) is fixedly connected with pump parts (4); Oil-feed bolt filter screen (30) puts into oil-feed bolt (29), is fixed, be connected by screw thread with pump parts (4) by circlip for hole (31); Oil return bolt (15) is connected with pump parts (4) respectively by screw thread with flow-limiting valve parts (14).
2. a kind of use for diesel engine modified node method single cylinder high-pressure fuel injection pump assembly according to claim 1, is characterized in that, uses O-ring seals to seal between described fastening screw plug (20) and overall pump cover (28); Sealed by O-ring seals between flange shaft bearing (12) and pump parts (4); End cap (5) and pump parts (4) are sealed by O-ring seals; Integral pump cover (1) and pump parts (4) are sealed by O-ring seals.
3. a kind of use for diesel engine modified node method single cylinder high-pressure fuel injection pump assembly according to claim 1, is characterized in that, described live axle (7) is single tappet roller structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520633227.XU CN204921227U (en) | 2015-08-20 | 2015-08-20 | Diesel engine is with improving structure single cylinder high -pressure oil pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520633227.XU CN204921227U (en) | 2015-08-20 | 2015-08-20 | Diesel engine is with improving structure single cylinder high -pressure oil pump assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204921227U true CN204921227U (en) | 2015-12-30 |
Family
ID=54970361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520633227.XU Withdrawn - After Issue CN204921227U (en) | 2015-08-20 | 2015-08-20 | Diesel engine is with improving structure single cylinder high -pressure oil pump assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204921227U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134440A (en) * | 2015-08-20 | 2015-12-09 | 辽宁新风企业集团有限公司 | Single-cylinder high-pressure oil pump assembly of improved structure for diesel engine |
| CN107165754A (en) * | 2017-07-07 | 2017-09-15 | 辽阳新风科技有限公司 | A kind of high-pressure fuel supply system and engine |
-
2015
- 2015-08-20 CN CN201520633227.XU patent/CN204921227U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134440A (en) * | 2015-08-20 | 2015-12-09 | 辽宁新风企业集团有限公司 | Single-cylinder high-pressure oil pump assembly of improved structure for diesel engine |
| CN105134440B (en) * | 2015-08-20 | 2019-04-12 | 辽阳钜锋汽车零部件有限公司 | Use for diesel engine improves the high-pressure fuel injection pump assembly of structure single cylinder |
| CN107165754A (en) * | 2017-07-07 | 2017-09-15 | 辽阳新风科技有限公司 | A kind of high-pressure fuel supply system and engine |
| CN107165754B (en) * | 2017-07-07 | 2024-02-02 | 辽阳新风科技有限公司 | High-pressure oil supply system and engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20160224 Granted publication date: 20151230 |
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| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20160824 Granted publication date: 20151230 |
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| PP01 | Preservation of patent right |
Effective date of registration: 20160824 Granted publication date: 20151230 |
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| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20180824 Granted publication date: 20151230 |
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| PD01 | Discharge of preservation of patent | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181015 Address after: 111299 Chaoyang Street, Shoushan Town, Liaoyang County, Liaoyang, Liaoning, 99-5 Patentee after: Liaoyang Ju Feng Beijing Great Automotive Components Company Limited Address before: 111299 Chaoyang Street, Shoushan Town, Liaoyang, Liaoyang, Liaoning Patentee before: Liaoning Xinfeng Enterprise Group Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151230 Effective date of abandoning: 20190412 |
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| AV01 | Patent right actively abandoned |