CN205592052U - Novel oil spraying pump - Google Patents
Novel oil spraying pump Download PDFInfo
- Publication number
- CN205592052U CN205592052U CN201620462439.0U CN201620462439U CN205592052U CN 205592052 U CN205592052 U CN 205592052U CN 201620462439 U CN201620462439 U CN 201620462439U CN 205592052 U CN205592052 U CN 205592052U
- Authority
- CN
- China
- Prior art keywords
- plunger
- pump housing
- matching parts
- housing shell
- hanging basket
- 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.)
- Expired - Fee Related
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses a novel oil spraying pump, it includes pump shell, and the push rod body is equipped with to the bottom in the pump shell, still is equipped with the plunger in the pump shell, and the pump shell lateral part is equipped with into oil pipe spare, and the last oilhole that is equipped with of pump shell, pump shell are equipped with at the top subassembly that produces oil, sealing connection has the hanging flower basket plunger matching parts who stretches into from its top in the pump shell, the top seal sliding connection of plunger is in hanging flower basket plunger matching parts, and hanging flower basket plunger matching parts's overhanging position is equipped with the hangers that the symmetry set up, and bolted connection is passed through at hangers and pump shell top, be equipped with between hanging flower basket plunger matching parts's middle part and the pump shell inner chamber with the oil pocket of inlet port intercommunication, be equipped with on the hanging flower basket plunger matching parts pressure release oilhole and with the inlet port of oilhole intercommunication. The utility model discloses the assembly is very convenient, has to improve the holistic compression strength of injection pump, guarantee fuel injection pressure and improve the advantage of spraying atomization quality.
Description
Technical field
This utility model relates to a kind of Novel fuel injection pump.
Background technology
Existing diesel injection pump, equipped with telescopic plunger matching parts in pump housing shell, plunger is upper and lower sliding under the impetus of pusher body and the reset response of plunger spring, the process of the upper and lower sliding of plunger realizes the fuel-displaced and oil-break above the pump housing, for ensureing injection pressure and jet atomization quality, in existing injection pump, it is set with plunger bushing in pump housing shell, pass through to press set again to be fixed by plunger bushing, plunger is upper and lower sliding in plunger bushing, this structure makes whole injection pump sufficiently complex when assembling, and use multiple parts that the compressive resistance of whole injection pump can be caused to reduce, rigidity is deteriorated, leverage the service life of injection pump and improve its fault rate.Additionally, fuel oil pumps through plunger after the oil pipe of pump housing sidepiece enters and is directly entered fuel-displaced assembly, it is difficult to pressure when ensureing fuel-displaced, fuel oil jet atomization difficult quality guarantee, fuel oil burning there may be not sufficiently situation, thus brings the problem that discharge is the most up to standard and pollutes environment.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of Novel fuel injection pump, and this injection pump can improve the compressive resistance of entirety, and assembling is simple, convenient, fully ensures that fuel-injection pressure and jet atomization quality.
nullFor solving above-mentioned technical problem，The Novel fuel injection pump provided includes pump housing shell，Pump housing shell inner bottom part is equipped with the pusher body being connected with bent axle power，It is also equipped with being driven by pusher body and resetting means the plunger of upper and lower sliding in pump housing shell，Pump housing shell sidepiece is equipped with oil-feed pipe fitting，The oilhole of oil-feed pipe fitting and pump housing inner chamber it is communicated with on pump housing shell，The surface of plunger is provided with the oil groove that can connect with oilhole and be obliquely installed，Pump housing cover top portion is equipped with fuel-displaced assembly，It is structurally characterized in that: be sealedly connected with the hanging basket plunger matching parts stretched into from its top in described pump housing shell，The top seal of described plunger is slidably connected in hanging basket plunger matching parts，The overhanging position of hanging basket plunger matching parts is provided with symmetrically arranged hangers，Hangers is bolted with pump housing cover top portion，It is provided with, between the middle part of described hanging basket plunger matching parts and pump housing shell inner cavity, the oil pocket connected with oilhole，Hanging basket plunger matching parts is provided with from the through pressure release oilhole adapted with oil groove to its inner chamber and position of its outer wall and the fuel feed hole that connects with oilhole.
The adjusting means of oil groove and the communicating position of fuel feed hole is adjusted equipped with plunger rotation can be ordered about in the middle part of described pump housing shell.
Described adjusting means includes the regulation gear being rotatably connected on pump housing shell, regulation gear is provided with annular tooth, regulation gear set is in the bottom of hanging basket plunger matching parts and affixed with plunger bottom, it is rotatably connected on described pump housing shell regulate ratch, regulation ratch is provided with the sphere groove being meshed with the annular tooth regulating on gear, and regulation ratch is provided with the ratch lug overhanging pump housing shell.
Arranging the most corresponding upper inner convex platform and lower inner convex platform in described pump housing shell, described regulation pinion rotation is arranged between upper and lower inner convex platform.
The bottom of described plunger connects to be had by the power-actuated spring pedestal of pusher body, and described resetting means is the plunger spring between spring pedestal and described lower inner convex platform, and described lower inner convex platform is the apical ring being connected to plunger spring top.
Described fuel-displaced assembly includes sealing the discharge outlet being screwed onto hanging basket plunger matching parts inner cavity top, discharge outlet is built with the delivery valve with hanging basket plunger matching parts inner space, delivery valve includes valve seat and the spool being slidably connected in valve seat, the outer surface of spool was provided with oil groove, the top of spool is provided with the block head of closure valve seat inner cavity top, equipped with oil outlet valve spring between top and the inner top surface of discharge outlet of described block head, the top of discharge outlet is provided with oil outlet, the inner chamber area of described hanging basket plunger matching parts was much larger than the sectional area of oil groove and a diameter of 9-10 millimeter of hanging basket plunger matching parts.
After using said structure, integrated hanging basket plunger matching parts is set, not only assemble very convenient, and substantially increase the compressive resistance of injection pump, increase its rigidity, improve service life and decrease fault rate, and the fuel oil of oil-feed pipe fitting is introduced in above-mentioned oil pocket, by the impetus up and down of plunger, fuel oil is pressed onto in fuel-displaced assembly again, thus ensure that the harmony oil pressure of fuel oil, improve expulsion pressure and ensure that jet atomization quality, so that fuel oil burning is more abundant, make the diesel emission being equipped with this injection pump up to standard and alleviate environmental pollution.The adjusting means arranged, can pre-adjust the height and position of hanging basket plunger matching parts, thus pre-adjust the area of oil pocket, adjusts oil pump capacity during the every sliding of plunger one time, thus ensures the jet atomization quality of fuel oil；The structure of fuel-displaced assembly is set, can fully improve the expulsion pressure of fuel oil, thus improve jet atomization quality.
In sum, this utility model assembling is very convenient, has and improves the overall compressive resistance of injection pump, guarantee fuel-injection pressure and the advantage improving jet atomization quality.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings this utility model is further described:
Fig. 1 is the structural representation of a kind of embodiment of this utility model；
Fig. 2 is the structural representation that Fig. 1 overlooks；
Fig. 3 is the structural representation of line A-A section view along Fig. 1；
Fig. 4 is the structural representation of fuel-displaced assembly and the assembling of hanging basket plunger matching parts.
Detailed description of the invention
nullAs shown in Figure 1 to Figure 3，This utility model provides a kind of Novel fuel injection pump，This injection pump connects on a diesel engine，Its concrete attachment structure does not repeats them here，This Novel fuel injection pump includes pump housing shell 1，Pump housing shell 1 inner bottom part is equipped with the pusher body 2 being connected with bent axle power，Pusher body 2 is connected with the bent axle power of diesel engine，The concrete structure of pusher body and the attachment structure with bent axle are all prior art，Do not repeat them here，It is also equipped with being driven by pusher body 2 and resetting means the plunger 3 of upper and lower sliding in pump housing shell 1，Pump housing shell 1 sidepiece is equipped with oil-feed pipe fitting 4，The oilhole 5 of oil-feed pipe fitting 4 and pump housing inner chamber it is communicated with on pump housing shell 1，The surface of plunger 3 is provided with the oil groove 7 that can connect with oilhole and be obliquely installed，Pump housing shell 1 top is equipped with fuel-displaced assembly 6，The hanging basket plunger matching parts 8 stretched into from its top it is sealedly connected with in described pump housing shell 1，The top seal of described plunger 3 is slidably connected in hanging basket plunger matching parts 8，The overhanging position of hanging basket plunger matching parts 8 is provided with symmetrically arranged hangers，Hangers is bolted with pump housing cover top portion，It is provided with, between the middle part of described hanging basket plunger matching parts 8 and pump housing shell inner cavity, the oil pocket connected with oilhole 5，Hanging basket plunger matching parts 8 is provided with from the through pressure release oilhole 81 adapted with oil groove to its inner chamber and position of its outer wall and the fuel feed hole 82 that connects with oilhole，The above-mentioned meaning that adapts is，Fuel feed hole 82 is closed until oil groove connects with fuel feed hole 82 and oil groove is connected with pressure release oilhole by the oil groove on plunger 3 surface when plunger is up、Open fuel feed hole and pressure release oilhole and plunger 3 surface-closed oilhole 5 when plunger is descending simultaneously.
nullAs shown in Figure 3，Rotate thus the adjusting means that adjusts the communicating position of oil groove and fuel feed hole equipped with plunger 3 can be ordered about in the middle part of pump housing shell 1，Described adjusting means includes the regulation gear 9 being rotatably connected on pump housing shell 1，Regulation gear 9 is provided with annular tooth，Regulation gear 9 is sleeved on the bottom of hanging basket plunger matching parts 8 and affixed with plunger bottom，Specifically，The bottom of plunger 3 is equipped with inserting column dish，The bottom of regulation gear 9 is provided with the ring set equipped with inserting column dish，It is rotatably connected on described pump housing shell 1 regulate ratch 10，Regulation ratch 10 is provided with the sphere groove being meshed with the annular tooth regulating on gear，Regulation ratch 10 is provided with the ratch lug 11 overhanging pump housing shell 1，The most corresponding upper inner convex platform 12 and lower inner convex platform 13 are set in described pump housing shell 1，Described regulation gear 9 is rotatably installed between upper and lower inner convex platform，Said structure makes the rotational angle of plunger adjust convenient and carry out stable regulation.The bottom of described plunger 3 connects to be had by the power-actuated spring pedestal of pusher body 31, described resetting means is the plunger spring 32 between spring pedestal 31 and described lower inner convex platform, described lower inner convex platform 13 is the apical ring being connected to plunger spring 32 top, makes spring pedestal 31 drive plunger to run downwards by the effect of suppressing of plunger spring.
nullAs shown in Figure 3 and Figure 4，Described fuel-displaced assembly 6 includes sealing the discharge outlet 61 being screwed onto hanging basket plunger matching parts 8 inner cavity top，Discharge outlet 61 is built with the delivery valve 62 with hanging basket plunger matching parts 8 inner space，Delivery valve 62 includes valve seat and the spool being slidably connected in valve seat，The outer surface of spool was provided with oil groove 621，The top of spool is provided with the block head 622 of closure valve seat inner cavity top，Equipped with oil outlet valve spring 63 between top and the inner top surface of discharge outlet 61 of described block head，The top of discharge outlet 61 is provided with oil outlet，The inner chamber area of described hanging basket plunger matching parts 8 was much larger than the sectional area of oil groove and a diameter of 9-10 millimeter of hanging basket plunger matching parts，By the setting of this structure，The every sliding of plunger fuel-injection pressure once can be fully ensured that，Thus improve fuel oil jet atomization quality.
This utility model is not restricted to the described embodiments, for those skilled in the art, based on the equivalent variations of concrete structure on this utility model and part replacement all in protection domain of the present utility model.
Claims (6)
- null1. a Novel fuel injection pump，Including pump housing shell (1)，Pump housing shell (1) inner bottom part is equipped with the pusher body (2) being connected with bent axle power，It is also equipped with being driven by pusher body (2) and resetting means the plunger (3) of upper and lower sliding in pump housing shell (1)，Pump housing shell (1) sidepiece is equipped with oil-feed pipe fitting (4)，The oilhole (5) of oil-feed pipe fitting (4) and pump housing inner chamber it is communicated with on pump housing shell (1)，The surface of plunger (3) is provided with the oil groove (7) that can connect with oilhole and be obliquely installed，Pump housing shell (1) top is equipped with fuel-displaced assembly (6)，It is characterized in that: in described pump housing shell (1), be sealedly connected with the hanging basket plunger matching parts (8) stretched into from its top，The top seal of described plunger (3) is slidably connected in hanging basket plunger matching parts (8)，The overhanging position of hanging basket plunger matching parts (8) is provided with symmetrically arranged hangers，Hangers is bolted with pump housing cover top portion，It is provided with, between middle part and the pump housing shell inner cavity of described hanging basket plunger matching parts (8), the oil pocket connected with oilhole (5)，Hanging basket plunger matching parts (8) is provided with from the through pressure release oilhole (81) adapted with oil groove to its inner chamber and position of its outer wall and the fuel feed hole (82) connected with oilhole.
- Novel fuel injection pump the most according to claim 1, is characterized in that: described pump housing shell (1) middle part adjusts the adjusting means of oil groove and the communicating position of fuel feed hole equipped with ordering about plunger (3) rotation.
- Novel fuel injection pump the most according to claim 2, it is characterized in that: described adjusting means includes being rotatably connected on the regulation gear (9) of pump housing shell (1), regulation gear (9) is provided with annular tooth, regulation gear (9) is sleeved on the bottom of hanging basket plunger matching parts (8) and affixed with plunger bottom, it is rotatably connected on described pump housing shell (1) regulate ratch (10), regulation ratch (10) is provided with the sphere groove being meshed with the annular tooth regulating on gear, and regulation ratch (10) is provided with the ratch lug (11) overhanging pump housing shell (1).
- Novel fuel injection pump the most according to claim 3, is characterized in that: arranging the most corresponding upper inner convex platform (12) and lower inner convex platform (13) in described pump housing shell (1), described regulation gear (9) is rotatably installed between upper and lower inner convex platform.
- Novel fuel injection pump the most according to claim 4, it is characterized in that: the bottom of described plunger (3) connects to be had by the power-actuated spring pedestal of pusher body (31), described resetting means is the plunger spring (32) between spring pedestal (31) and described lower inner convex platform, and described lower inner convex platform (13) is the apical ring being connected to plunger spring (32) top.
- null6. according to the Novel fuel injection pump according to any one of claim 1-5，It is characterized in that: described fuel-displaced assembly (6) includes that sealing is screwed onto the discharge outlet (61) of hanging basket plunger matching parts (8) inner cavity top，Discharge outlet (61) is built with the delivery valve (62) with hanging basket plunger matching parts (8) inner space，Delivery valve (62) includes valve seat and the spool being slidably connected in valve seat，The outer surface of spool was provided with oil groove (621)，The top of spool is provided with the block head (622) of closure valve seat inner cavity top，Equipped with oil outlet valve spring (63) between the inner top surface of the top of described block head and discharge outlet (61)，The top of discharge outlet (61) is provided with oil outlet，The inner chamber area of described hanging basket plunger matching parts (8) was much larger than the sectional area of oil groove and a diameter of 9-10 millimeter of hanging basket plunger matching parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620462439.0U CN205592052U (en) | 2016-05-20 | 2016-05-20 | Novel oil spraying pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620462439.0U CN205592052U (en) | 2016-05-20 | 2016-05-20 | Novel oil spraying pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205592052U true CN205592052U (en) | 2016-09-21 |
Family
ID=56931026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620462439.0U Expired - Fee Related CN205592052U (en) | 2016-05-20 | 2016-05-20 | Novel oil spraying pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205592052U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026485A (en) * | 2018-08-14 | 2018-12-18 | 南京双峰油泵油嘴有限公司 | Injection pump quickly detects experimental rig and its test method |
-
2016
- 2016-05-20 CN CN201620462439.0U patent/CN205592052U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026485A (en) * | 2018-08-14 | 2018-12-18 | 南京双峰油泵油嘴有限公司 | Injection pump quickly detects experimental rig and its test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 Termination date: 20200520 |
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| CF01 | Termination of patent right due to non-payment of annual fee |