CN202001159U - Oil transfer pump of commercial vehicle diesel engine - Google Patents
Oil transfer pump of commercial vehicle diesel engine Download PDFInfo
- Publication number
- CN202001159U CN202001159U CN2010206394339U CN201020639433U CN202001159U CN 202001159 U CN202001159 U CN 202001159U CN 2010206394339 U CN2010206394339 U CN 2010206394339U CN 201020639433 U CN201020639433 U CN 201020639433U CN 202001159 U CN202001159 U CN 202001159U
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- pump
- oil
- oil pump
- piston
- diesel engine
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Abstract
The utility model discloses an oil transfer pump of a commercial vehicle diesel engine, which comprises a pump body (5), an oil pump piston assembly (8), check valve assemblies (7) and a return spring (25), wherein the oil pump piston assembly (8) comprises an oil pump piston (26), a piston rod (27), an oil pump pull cover (28) and a piston housing (29); two check valve assemblies (7) are in-mounted from the two ends of the pump body (5); and the internal diameter of the pump body (5) is smaller than the diameters at two ends, thereby forming the step for mounting the check valve assemblies (7). By adopting the technical scheme, the product reliability is improved, the product structure is simplified, the cost is reduced, and multiple leakages is avoided, therefore the product performance is improved, the product service life is prolonged, the production cycle is shortened, the product productivity is improved, and a basis is laid for batch equipping all kinds of vehicles.
Description
Technical field
The utility model belongs to the technical field of commercial car diesel engine, relates to the structure of its oil-fired system, and more particularly, the utility model relates to a kind of commercial car diesel fuel system piston type hand fuel pump.
Background technique
The commercial car diesel fuel system is connected on the vehicle chassis with bolt with the piston type hand fuel pump, is used for realizing the fuel delivery when main oil pump damages.
Shown in Figure 1 in hand fuel pump of the prior art such as this Figure of description comprises as lower member: connecting bolt 1, fuel inlet fitting 2, seal washer 3, oil pump joint 4, the pump housing 5, packing ring 6, safety check assembly 7, oil pump piston assembly 8, separation sleeve assembly 9, packing ring 10, O RunddichtringO 11, oil-feed plug screw 12, connecting cover 13, rectangular seal 14, oil storage cup 15, filter screen 16, lubricating cup raise the nose above water to breathe 17, lubricating cup spring 18, lubricating cup card 19, adjust nut 20, tighten screw 21, packing ring 22, nut 23.
From above-described formation, can find out, existing piston type hand fuel pump complex structure, cost is higher.Wherein oil storage cup 15 complex structures, rapid wear.Also can cause the vehicle oil way air inlet after the damage, when serious even cause engine misses.Oil pump piston assembly 8 connects complicated, easily causes leakage, influences product performance.
Summary of the invention
Problem to be solved in the utility model provides a kind of commercial car oil transmitting pump of diesel engine, its objective is the raising reliability of products.
To achieve these goals, the technological scheme taked of the utility model is:
Commercial car oil transmitting pump of diesel engine provided by the utility model, comprise the pump housing, oil pump piston assembly, safety check assembly and return spring, described oil pump piston assembly comprises that oil pump piston, piston rod, oil pump draw lid and piston shell, described safety check assembly is two, pack into from the two ends of the described pump housing, the inner aperture of the described pump housing constitutes the step that described safety check assembly is installed less than two ends.
Described oil transfer pump is established return spring, and an end of described return spring contacts with described pump housing surface of internal cavity, and the other end contacts with the end face of described oil pump piston.
Described safety check assembly is compressed by screw thread by the oil pump joint.
Establish seal washer in the described pump housing, described seal washer, return spring are contained in the pump housing successively, are compressed by screw thread by described oil pump piston assembly.
Through after the above-mentioned improvement, the utility model obviously improves than original structure manufacturability and reliability, and the pump oil mass is brought up to 300～350ml/min by 150～200ml/min; Rate of fault is reduced to 0.6% by 5.8%.The utility model adopts technique scheme, improved reliability of products, simplified product structure, reduce cost, avoid having more the phenomenon of leakage, thereby improved the performance and the working life of product, shortened the manufacture cycle, improved the production capacity of product, for various vehicle equipment in enormous quantities lays the foundation.
Description of drawings
Below expressed content of each width of cloth accompanying drawing of this specification and the mark among the figure are made brief description:
Fig. 1 is the described prior art constructions schematic representation of this specification background technique part;
Fig. 2 is a structural representation of the present utility model.
Be labeled as among the figure:
1, connecting bolt, 2, fuel inlet fitting, 3, seal washer, 4, the oil pump joint, 5, the pump housing, 6, packing ring, 7, the safety check assembly, 8, the oil pump piston assembly, 9, the separation sleeve assembly, 10, packing ring, 11, the O RunddichtringO, 12, the oil-feed plug screw, 13, connecting cover, 14, rectangular seal, 15, oil storage cup, 16, filter screen, 17, lubricating cup is raised the nose above water to breathe, and 18, the lubricating cup spring, 19, the lubricating cup card, 20, adjust nut, 21, tighten screw, 22, packing ring, 23, nut, 24, seal washer, 25, return spring, 26, oil pump piston, 27, piston rod, 28, oil pump draws lid, and 29, piston shell.
Embodiment
Contrast accompanying drawing below, by description to embodiment, to effect and working principle, the manufacturing process of the mutual alignment between the shape of embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and manipulate method etc., be described in further detail, inventive concept of the present utility model, technological scheme had more complete, accurate and deep understanding to help those skilled in the art.
The of the present utility model structure expressed as Fig. 2, be a kind of commercial car oil transmitting pump of diesel engine, comprise the pump housing 5, oil pump piston assembly 8, safety check assembly 7 and return spring 25, described oil pump piston assembly 8 comprises that oil pump piston 26, piston rod 27, oil pump draw and covers 28 and piston shell 29.Commercial car use in oil transmitting pump of diesel engine bolt is connected on the vehicle chassis, realizes the fuel delivery when main oil pump damages.
In order to solve the problem that exists at the described present known technology of this specification background technique part and to overcome its defective, realize the goal of the invention of the reliability of raising braking system, the technological scheme that the utility model is taked is:
Commercial car oil transmitting pump of diesel engine provided by the utility model, described safety check assembly 7 is two, packs into from the two ends of the described pump housing 5, the described pump housing 5 inner apertures constitute the step that described safety check assembly 7 is installed less than two ends.
Two safety check assemblies 7 are contained in the pump housing 5 in the same way, are compressed by screw thread by oil pump joint 4.
The utility model carries out Transform Type design and update to prior art constructions, reduces cost, and improves performance, has avoided having more the phenomenon of leakage, thereby improves the performance and the working life of product.Simplified product structure, shortened the manufacture cycle, improved the production capacity and the performance of product, reduced purchase cost, for various vehicle equipment in enormous quantities lays the foundation.
Oil transfer pump described in the utility model is established return spring 25, and an end of described return spring 25 contacts with the described pump housing 5 surface of internal cavity, and the other end contacts with the end face of described oil pump piston 26.
Working principle of the present utility model:
The oil pump of outwarding winding draws and covers 28, and oil pump piston 26 is ejected, and forms vacuum state in the pump housing, and the spool of the safety check assembly 7 on the right among the figure is opened; Depress oil pump and draw and cover 28, it is descending to drive oil pump piston 26, and the air in the valve body is discharged, and the spool of the safety check assembly 7 on the right among the figure is closed, and the spool of the safety check assembly 7 on the left side is opened.
Safety check assembly 7 described in the utility model is compressed by screw thread by oil pump joint 4.
The utlity model has following characteristics:
1, oil transfer pump of the present utility model has been cancelled the fuel strainer of original product; Because of being in series with diesel-oil filter on the oil circuit that connects, the filtrating equipment of hand pump has belonged to repeat function and effect is little, so this device of cancellation.Also can avoid damaging the system leak that causes because of oil storage cup in transportation with in using.
2, simplified the linkage structure of existing product; Each parts of original structure all adopt and are threaded, and reach seven places, as long as there is place seal failure will cause whole system to be leaked.The utility model is simplified, and is connected by seven places to change the connection of three places into, has improved the sealing of product.Dwindle product size simultaneously, reduced weight.
3, improved the safety check assembly structure; Two safety check of existing product are packed into from valve body one end, are separated by separation sleeve.Be prone to problem because of separation sleeve neglected loading or safety check direction misloading.The utility model on valve body, processed be convenient to safety check isolate and recognize to structure, avoided unnecessary assembling accident.
4, increased pump oil power assisting device: the utility model has been set up return spring under pump oil piston, operator only need be depressed draw lid just can finish the action of pump oil, has improved pump oil efficient, has reduced operation easier.
Obviously improve than original structure workability and reliability through hand fuel pump of the present utility model after the above-mentioned improvement, the pump oil mass is brought up to 300～350ml/min by 150～200ml/min; Rate of fault is reduced to 0.6% by 5.8%.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technological scheme carry out; or design of the present utility model and technological scheme are directly applied to other occasion without improving, all within protection domain of the present utility model.
Claims (4)
1. commercial car oil transmitting pump of diesel engine, comprise the pump housing (5), oil pump piston assembly (8), safety check assembly (7) and return spring (25), described oil pump piston assembly (8) comprises that oil pump piston (26), piston rod (27), oil pump draw lid (28) and piston shell (29), it is characterized in that: described safety check assembly (7) is two, pack into from the two ends of the described pump housing (5), the inner aperture of the described pump housing (5) constitutes the step that described safety check assembly (7) is installed less than two ends.
2. according to the described commercial car oil transmitting pump of diesel engine of claim 1, it is characterized in that: described oil transfer pump is established return spring (25), one end of described return spring (25) contacts with the described pump housing (5) surface of internal cavity, and the other end contacts with the end face of described oil pump piston (26).
3. according to the described commercial car oil transmitting pump of diesel engine of claim 1, it is characterized in that: described safety check assembly (7) is compressed by screw thread by oil pump joint (4).
4. according to the described commercial car oil transmitting pump of diesel engine of claim 1, it is characterized in that: in the described pump housing (5), establish seal washer (24), described seal washer (24), return spring (25) are contained in the pump housing (5) successively, are compressed by screw thread by described oil pump piston assembly (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206394339U CN202001159U (en) | 2010-12-02 | 2010-12-02 | Oil transfer pump of commercial vehicle diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206394339U CN202001159U (en) | 2010-12-02 | 2010-12-02 | Oil transfer pump of commercial vehicle diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202001159U true CN202001159U (en) | 2011-10-05 |
Family
ID=44703902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206394339U Expired - Fee Related CN202001159U (en) | 2010-12-02 | 2010-12-02 | Oil transfer pump of commercial vehicle diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202001159U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062031A (en) * | 2010-12-02 | 2011-05-18 | 芜湖盛力制动有限责任公司 | Fuel transfer pump of diesel engine of commercial vehicle |
| CN102410116A (en) * | 2011-12-19 | 2012-04-11 | 芜湖盛力制动有限责任公司 | Manual fuel delivery pump for diesel engine fuel system of commercial vehicle |
-
2010
- 2010-12-02 CN CN2010206394339U patent/CN202001159U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062031A (en) * | 2010-12-02 | 2011-05-18 | 芜湖盛力制动有限责任公司 | Fuel transfer pump of diesel engine of commercial vehicle |
| CN102410116A (en) * | 2011-12-19 | 2012-04-11 | 芜湖盛力制动有限责任公司 | Manual fuel delivery pump for diesel engine fuel system of commercial vehicle |
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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: 20111005 Termination date: 20141202 |
|
| EXPY | Termination of patent right or utility model |