CN114472359A - Oil removing tool for fuel pump - Google Patents
Oil removing tool for fuel pump Download PDFInfo
- Publication number
- CN114472359A CN114472359A CN202111593934.7A CN202111593934A CN114472359A CN 114472359 A CN114472359 A CN 114472359A CN 202111593934 A CN202111593934 A CN 202111593934A CN 114472359 A CN114472359 A CN 114472359A
- Authority
- CN
- China
- Prior art keywords
- fuel pump
- connecting hole
- seat
- longitudinal connecting
- movable seat
- Prior art date
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- 239000000446 fuel Substances 0.000 title claims abstract description 97
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 238000004064 recycling Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 4
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 2
- 239000002904 solvent Substances 0.000 description 8
- 239000012530 fluid Substances 0.000 description 4
- 239000003595 mist Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
Abstract
The invention relates to a fuel pump oil removing tool, wherein a support of the fuel pump oil removing tool is provided with a first fixed seat, a first movable seat and a second movable seat, the first fixed seat is provided with a first air connector and a first sealing block, the first sealing block is provided with a first longitudinal connecting hole, the first air connector is communicated with the first longitudinal connecting hole, the first movable seat is provided with a second air connector and a second sealing block, the second sealing block is provided with a second longitudinal connecting hole, and the second air connector is communicated with the second longitudinal connecting hole. Wherein correspond the oil inlet and the oil-out of acting on the fuel pump respectively by first sealed piece and the sealed piece of second, when pressing from both sides tight fuel pump, first longitudinal connecting hole on the first sealed piece, second longitudinal connecting hole on the sealed piece of second respectively with the oil inlet of fuel pump, the oil-out is connected and realizes the intercommunication, first sealed piece, the sealed piece of second is ensured to be connected, ensure the gas tightness of junction again, press from both sides tight fuel pump and ventilate again and deoil, structural configuration is reasonable, high durability and convenient use, the fuel pump can be conveniently changed, deoiling efficiency is higher.
Description
Technical Field
The invention relates to a fuel pump oil removing tool structure.
Background
An electronic fuel injection pump (hereinafter referred to as a fuel pump) is an important part of a fuel pump assembly, and the fuel pump needs to be subjected to performance detection and testing by using solvent oil (such as D60) before being shipped out of a factory so as to determine whether the fuel pump meets specified performance requirements. The solvent oil such as D60 can not be used in the automobile fuel system, so the solvent oil in the fuel pump needs to be removed after the detection is completed so as not to influence the normal operation of the automobile fuel system and the fuel pump. The solvent oil in the fuel pump can be removed in a centrifugal mode, but the effect is poor, and the solvent oil still remains and cannot reach the standard.
Disclosure of Invention
In view of the technical problems existing in the background art, the technical problem solved by the invention is to provide an oil removing tool for a fuel pump. Utilize among this frock structure to blow and get rid of the solvent naphtha in the fuel pump, its structural layout is reasonable, and convenient to use can convenient change fuel pump, deoils, deoiling efficiency is higher.
In order to solve the technical problems, the invention adopts the following technical scheme: fuel pump deoiling frock is equipped with first fixing base, first sliding seat and second sliding seat including the support on the support, and first sliding seat disposes its characterized in that on vertical track with the second sliding seat: the first fixed seat is provided with a first air joint and a first sealing block, the first sealing block is provided with a first longitudinal connecting hole, the first air joint is communicated with the first longitudinal connecting hole, one port of the first longitudinal connecting hole is arranged backwards, the first movable seat is provided with a second air joint and a second sealing block, the second sealing block is provided with a second longitudinal connecting hole, the second air joint is communicated with the second longitudinal connecting hole, one port of the second longitudinal connecting hole is arranged forwards, the second movable seat is positioned between the first fixed seat and the first movable seat, the second movable seat is provided with a profiling lower concave cavity and a baffle plate, the baffle plate is positioned at the front side of the profiling lower concave cavity, the baffle plate is provided with a dodging port, the profiling lower concave cavity is positioned between the first longitudinal connecting hole and the second longitudinal connecting hole, the bracket is also provided with a longitudinal movement driving device, and the longitudinal movement driving device is in transmission connection with the first movable seat, the first movable seat is in transmission connection with the second movable seat. In this frock structure, the fuel pump of same batch can convenient replacement place cooperation deoiling in the cavity under the profile modeling one by one, the cooperation of longitudinal movement drive arrangement promotes the antedisplacement of first sliding seat, the cooperation is cliied the fuel pump on the second sliding seat, wherein correspond oil inlet and the oil-out that acts on the fuel pump respectively by first sealed piece and second sealed piece, when pressing from both sides tight fuel pump, first longitudinal connecting hole on the first sealed piece, second longitudinal connecting hole on the second sealed piece respectively with the oil inlet of fuel pump, the oil-out is connected and is realized the intercommunication, first sealed piece, when second sealed piece is guaranteed to be connected, ensure the gas tightness of junction again, press from both sides tight fuel pump and ventilate again and deoil, structural layout is reasonable, high durability and convenient use, can convenient the change fuel pump, deoiling efficiency is higher.
The following various optimization or supplementary explanations may be made in the above technical solutions.
For example, the longitudinal rail adopts a guide rod, the bracket is further provided with a second fixed seat, the longitudinal movement driving device is connected to the second fixed seat, one end of the guide rod is connected to the first fixed seat, and the other end of the guide rod is connected to the second fixed seat. The structure integrity is better, compact.
Further preferably, the longitudinal movement driving device comprises a driving cylinder. The installation is convenient, and the pneumatic mode drive is reasonable.
The injection molding machine can also be optimized, wherein a mandril is arranged on the first movable seat, and the mandril corresponds to a contact pin of the fuel pump placed in the concave cavity under the profiling. Directly acts on the fuel pump to ensure clamping of the fuel pump.
And then optimizing, a rod seat is further arranged on the first movable seat, a rod hole is formed in the rod seat and is longitudinally arranged, a buffer spring is arranged in the rod hole, one end of the ejector rod is arranged in the rod hole, and the buffer spring is connected with the ejector rod in a matched mode. The ejector pin can cushion, can be suitable for the machining precision error that the same batch of fuel pump exists.
For another example, the first air joint is connected with a first air pipe, and the second air joint is connected with a second air pipe; one of the first air pipe and the second air pipe is connected with an air blowing source, and the other one is connected with the recycling bin. Can cooperate and blow to degrease, can also retrieve fluid and recycle, more environmental protection reduces the cost.
For example, the recycling bin comprises a bin cover and a bin body made of metal materials, and the bin cover is connected to the bin body. The recycling is convenient, and the recycling and liquefaction are more smooth.
For another example, the first sealing block and the second sealing block are made of polyurethane rubber. Good resilience, good toughness, wear resistance and long service life.
The oil removing tool for the fuel pump has the advantages that the tool structure is newly designed so as to facilitate air blowing and oil removing, wherein the fuel pumps in the same batch can be conveniently replaced and placed in the lower cavity of the profile modeling one by one to cooperatively remove oil; longitudinal movement drive arrangement cooperation promotes the antedisplacement of first movable seat, the cooperation is cliied the fuel pump on the second movable seat, act on the oil inlet of fuel pump by first sealed piece and the sealed one of them of second, another is used in the oil-out of fuel pump, when the tight fuel pump of cooperation clamp, first longitudinal connecting hole on the first sealed piece, second longitudinal connecting hole on the second sealed piece respectively with the oil inlet of fuel pump, the oil-out is connected and realizes the intercommunication, first sealed piece, the sealed piece of second is ensured to be connected, ensure the gas tightness of junction again, avoid gas leakage, press from both sides tight fuel pump and ventilate again and remove oil, and is reasonable in structural layout, high durability and convenient use, can conveniently change the fuel pump, remove oil, it is higher to remove oil efficiency. Therefore, compared with the prior art, the invention has outstanding substantive features and remarkable steps.
Drawings
The following describes details and operational principles of embodiments and examples of the present invention with reference to the drawings.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view showing a structure of the fuel pump of fig. 1 hidden from view.
Fig. 3 is a schematic structural view of fig. 1 from another angle.
Fig. 4 is a schematic view showing a structure of the fuel pump shown in fig. 3 hidden from view.
In the figure: 1. a support; 2. a first fixed seat; 3. a first movable seat; 4. a second movable seat; 5. a longitudinal rail; 6. a first gas joint; 7. a first seal block; 8. a first longitudinal connecting hole; 9. a second gas joint; 10. a second seal block; 11. a second longitudinal connecting hole; 12. profiling the lower concave cavity; 13. a baffle plate; 14. avoiding the mouth; 15. a longitudinal movement driving device; 16. a second fixed seat; 17. a top rod; 18. a rod seat; 19. a fuel pump; 20. inserting a pin; 21. an oil inlet; 22. and an oil outlet.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to the accompanying drawings, in the embodiment of the present invention, the oil removing tool for a fuel pump includes a bracket 1, the bracket 1 may use a bottom plate as the bracket 1, the bracket 1 is provided with a first fixed seat 2, a first movable seat 3 and a second movable seat 4, the first movable seat 3 and the second movable seat 4 are disposed on a longitudinal rail 5, so that the first movable seat 3 and the second movable seat 4 can perform longitudinal stable movement, the first movable seat 3 and the second movable seat 4 may share the longitudinal rail 5, and may also be respectively configured with the respective longitudinal rail 5, which is a shared mode in the drawings and is more compact.
Wherein, be equipped with first gas connection 6 and first sealed piece 7 on the first fixing base 2. The first sealing block 7 is provided with a first longitudinal connecting hole 8, the first air connector 6 is communicated with the first longitudinal connecting hole 8 and can be ventilated, one port of the first longitudinal connecting hole 8 is arranged backwards, and the port is used for being communicated with an oil inlet 21 or an oil outlet 22 of the fuel pump 19 so as to form an air path, ventilate and blow and cooperatively remove oil. The first sealing block 7 is provided with a first longitudinal connecting hole 8 for communicating to form an air path, and the first sealing block 7 can be sealed at the communicated connecting part to avoid leakage, so that the air tightness is ensured.
Wherein, a second air joint 9 and a second sealing block 10 are arranged on the first movable seat 3. The second sealing block 10 is provided with a second longitudinal connecting hole 11, the second air connector 9 is communicated with the second longitudinal connecting hole 11 and can be ventilated, and one port of the second longitudinal connecting hole 11 is arranged forwards and is used for being communicated with an oil inlet 21 or an oil outlet 22 of the fuel pump 19 so as to form an air path, ventilate and blow air and cooperatively remove oil. The second sealing block 10 is provided with a second longitudinal connecting hole 11 for communicating to form an air path, and the second sealing block 10 can be sealed at the communicated connecting position to avoid leakage, so that air tightness is ensured.
Wherein, the second sliding seat 4 is located between the first fixed seat 2 and the first sliding seat 3, and the second sliding seat 4 is provided with a profiling lower concave cavity 12 and a baffle 13. The profiling lower cavity 12 is matched with the shape of a fuel pump 19, for example, the profiling lower cavity is in a semi-cylindrical shape and is used for placing the fuel pump 19, the fuel pump 19 is placed in a mode that one of an oil inlet 21 and an oil outlet 22 of the fuel pump 19 faces forwards, the other oil inlet 22 and the oil outlet 22 face backwards, the oil inlet and the oil outlet correspond to the first longitudinal connecting hole 8 and the second longitudinal connecting hole 11 respectively, so that when the fuel pump 19 in the profiling lower cavity 12 of the second movable seat 4 is clamped, the first sealing block 7 and the second sealing block 10 are clamped at the front end and the rear end of the fuel pump 19 in a matching mode, and the first longitudinal connecting hole 8 on the first sealing block 7 and the second longitudinal connecting hole 11 on the second sealing block 10 are communicated with the fuel pump 19. The baffle 13 is positioned at the front side of the lower copying concave cavity 12, and the baffle 13 is matched with and stops the fuel pump 19 for limiting, so that the fuel pump 19 is more convenient to place in the lower copying concave cavity 12 of the second movable seat 4 and moves when being pushed to move forwards; the baffle 13 is provided with an avoiding port 14, and the avoiding port 14 is arranged at an avoiding position so that the fuel pump 19 is communicated with the first longitudinal connecting hole 8. The contoured lower cavity 12 is located between the first longitudinal connecting aperture 8 and the second longitudinal connecting aperture 11.
Wherein, still be equipped with longitudinal movement drive arrangement 15 on the support 1, longitudinal movement drive arrangement 15 is connected with first sliding seat 3 transmission, and first sliding seat 3 is connected with second sliding seat 4 transmission. The longitudinal movement driving device 15 drives the first movable seat 3 to move back and forth on the longitudinal rail 5, the first movable seat 3 drives the second movable seat 4 to move forward when moving forward, the first movable seat 3 can directly push the second movable seat 4 or the first movable seat 3 can push the fuel pump 19 on the second movable seat 4 until the first movable seat 3 and the first fixed seat 2 are matched to clamp the fuel pump 19 on the second movable seat 4.
According to the working principle, different fuel pumps 19 (namely electronic injection fuel pumps 19) in the same batch are placed into the tool one by one for deoiling, the fuel pumps 19 are placed into the matched profiling lower concave cavity 12, the fuel pumps 19 are positioned in place when placed by the baffle 13, the first movable seat 3 is driven to advance by the longitudinal movement driving device 15, the first movable seat 3 drives the fuel pumps 19 and the second movable seat 4 to advance until the front ends of the fuel pumps 19 are contacted with the first sealing block 7, and at the moment, the fuel pumps 19 are clamped; the front end of the clamped fuel pump 19 contacts the first sealing block 7, the rear end contacts the second sealing block 10, the first connecting hole in the first sealing block 7 and the second connecting hole in the second sealing block 10 enable an oil inlet 21 and an oil outlet 22 in the front end and the rear end of the fuel pump 19 to be respectively communicated in a butt joint mode, one of the first air connector 6 and the second air connector 9 is used for air inlet and air exhaust, an air path is formed, solvent oil in the fuel pump 19 is vaporized under the action of air pressure to form oil mist, the oil mist is discharged along with the air, and the purpose of removing oil is achieved.
The oil removing tool for the fuel pump is a tool structure which is newly designed so as to facilitate air blowing and oil removing, wherein the fuel pumps 19 in the same batch can be conveniently replaced and placed in the lower profiling cavity 12 one by one to cooperatively remove oil; the longitudinal movement driving device 15 is matched with and pushes the first movable seat 3 to move forwards, the fuel pump 19 on the second movable seat 4 is clamped through matching, one of the first sealing block 7 and the second sealing block 10 acts on an oil inlet 21 of the fuel pump 19, the other acts on an oil outlet 22 of the fuel pump 19, when the fuel pump 19 is clamped through matching, a first longitudinal connecting hole 8 on the first sealing block 7, a second longitudinal connecting hole 11 on the second sealing block 10 are respectively connected with the oil inlet 21 and the oil outlet 22 of the fuel pump 19 to achieve communication, the first sealing block 7 and the second sealing block 10 are connected, the air tightness of a joint is ensured, air leakage is avoided, the fuel pump 19 is clamped to remove oil through air, the structural layout is reasonable, the use is convenient, the fuel pump 19 can be conveniently replaced, oil removal and oil removal efficiency are higher.
The following optimization or further explanation can be made on the basis of the above embodiments, respectively.
For example, the longitudinal rail 5 adopts a guide rod, and the first movable seat 3 and the second movable seat 4 can be provided with corresponding guide sleeves to slide in cooperation with the guide rod; still be equipped with second fixing base 16 on support 1, longitudinal movement drive arrangement 15 connects on second fixing base 16, and the one end of guide arm is connected and is carried out corresponding fixed on first fixing base 2, and the other end of guide arm is connected and is carried out corresponding fixed on second fixing base 16. The whole tool structure is supported by the support 1, so that the tool is good in structural integrity and compact. The longitudinal movement driving device 15 can adopt an air cylinder or a motor and the like as power drive to drive the first movable seat 3 to move back and forth on the longitudinal rail 5; for example, the longitudinal movement driving device 15 includes a driving cylinder, the driving cylinder is relatively convenient to mount, the transmission structure is simple, the pneumatic driving mode is reasonable, and the air pressure can be controlled and adjusted to control the force for clamping the fuel pump 19. The driving cylinder can be controlled by a foot switch.
Preferably, the first movable seat 3 is provided with a top rod 17, and the top rod 17 is arranged corresponding to a contact pin 20 of a fuel pump 19 placed in the lower cavity 12. The ejector rod 17 directly acts on a pin 20 (a power pin 20) of the fuel pump 19 to push the fuel pump 19 and the second movable seat 4 to advance, so that the fuel pump 19 is clamped.
And optimization can be carried out again, the first movable seat 3 is further provided with a rod seat 18, the rod seat 18 is provided with a rod hole, the rod hole is longitudinally arranged, a buffer spring is arranged in the rod hole, one end of the ejector rod 17 is arranged in the rod hole, and the buffer spring is connected with the ejector rod 17 in a matched manner. The ejector rod 17 can buffer to adapt to different fuel pumps 19 in the same batch, and the sizes of the fuel pumps 19 in the same batch are slightly different due to machining precision errors and the like.
Wherein, the first air joint 6 is connected with a first air pipe, and the second air joint 9 is connected with a second air pipe; one of the first air pipe and the second air pipe is connected with an air blowing source (such as an air pump, an air compressor and the like), and the other one is connected with the recycling bin. For example, the first gas joint 6 is a gas inlet end, and the second gas joint 9 is a gas outlet end (i.e., a gas outlet end). Except the cooperation formation gas circuit to the deoiling of blowing, can also retrieve fluid and recycle, reduce the energy consumption, the gas carries that the pressure variation is little, the temperature step-down among the fluid mist gets into the recycling bin, and solvent oil fluid condenses again, and is more environmental protection, the reduce cost.
For example, the recycling bin comprises a bin cover and a bin body made of metal materials, and the bin cover is connected to the bin body. The metal materials such as stainless steel, iron, aluminum and the like have good heat dissipation, are beneficial to liquefaction and condensation of oil, are convenient to recycle and are smoother to recycle and liquefy.
In another example, the first sealing block 7 and the second sealing block 10 are made of urethane rubber. Good resilience, good toughness, wear resistance and long service life.
In addition, the number of the first seal blocks 7 and the second seal blocks 10 may be plural. The first sealing block 7 and the second sealing block 10 can be provided with step-shaped structures to be matched, sleeved and abutted with the oil inlet 21 and the oil outlet 22, and can also be sleeved and abutted on the basis of abutting and abutting connection, so that the mutual connection is more stable.
The foregoing is a preferred embodiment of the present invention, and it should be noted that the scope of the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the scope of the invention as set forth in the claims.
Claims (8)
1. Fuel pump deoiling frock is equipped with first fixing base (2), first sliding seat (3) and second sliding seat (4) including support (1) on support (1), and its characterized in that is disposed on vertical track (5) in first sliding seat (3) and second sliding seat (4):
the first fixed seat (2) is provided with a first air joint (6) and a first sealing block (7), the first sealing block (7) is provided with a first longitudinal connecting hole (8), the first air joint (6) is communicated with the first longitudinal connecting hole (8), one port of the first longitudinal connecting hole (8) is arranged backwards,
a second air joint (9) and a second sealing block (10) are arranged on the first movable seat (3), a second longitudinal connecting hole (11) is arranged on the second sealing block (10), the second air joint (9) is communicated with the second longitudinal connecting hole (11), one port of the second longitudinal connecting hole (11) is arranged forward,
the second movable seat (4) is positioned between the first fixed seat (2) and the first movable seat (3), the second movable seat (4) is provided with a profiling lower concave cavity (12) and a baffle (13), the baffle (13) is positioned at the front side of the profiling lower concave cavity (12), the baffle (13) is provided with a dodging opening (14), the profiling lower concave cavity (12) is positioned between the first longitudinal connecting hole (8) and the second longitudinal connecting hole (11),
the support (1) is further provided with a longitudinal movement driving device (15), the longitudinal movement driving device (15) is in transmission connection with the first movable seat (3), and the first movable seat (3) is in transmission connection with the second movable seat (4).
2. The fuel pump deoiling frock of claim 1 characterized in that: the longitudinal rail (5) adopts a guide rod, a second fixed seat (16) is further arranged on the support (1), the longitudinal movement driving device (15) is connected onto the second fixed seat (16), one end of the guide rod is connected onto the first fixed seat (2), and the other end of the guide rod is connected onto the second fixed seat (16).
3. The fuel pump deoiling frock of claim 2 characterized in that: the longitudinal movement driving device (15) comprises a driving air cylinder.
4. The fuel pump deoiling frock of claim 1 characterized in that: an ejector rod (17) is arranged on the first movable seat (3), and the ejector rod (17) is arranged corresponding to a contact pin (20) of a fuel pump (19) placed in the profiling lower concave cavity (12).
5. The fuel pump deoiling frock of claim 4, characterized in that: the first movable seat (3) is further provided with a rod seat (18), a rod hole is formed in the rod seat (18), the rod hole is longitudinally formed, a buffer spring is arranged in the rod hole, one end of the ejector rod (17) is arranged in the rod hole, and the buffer spring is connected with the ejector rod (17) in a matched mode.
6. The fuel pump deoiling frock of claim 1 characterized in that: the first air joint (6) is connected with a first air pipe, and the second air joint (9) is connected with a second air pipe;
one of the first air pipe and the second air pipe is connected with an air blowing source, and the other one is connected with the recycling bin.
7. The fuel pump oil removing tool according to claim 6, characterized in that: the recycling bin comprises a bin cover and a bin body made of metal materials, and the bin cover is connected to the bin body.
8. The fuel pump deoiling frock of claim 1 characterized in that: the first sealing block (7) and the second sealing block (10) are made of polyurethane rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111593934.7A CN114472359B (en) | 2021-12-24 | 2021-12-24 | Oil removing tool for fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111593934.7A CN114472359B (en) | 2021-12-24 | 2021-12-24 | Oil removing tool for fuel pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114472359A true CN114472359A (en) | 2022-05-13 |
| CN114472359B CN114472359B (en) | 2023-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111593934.7A Active CN114472359B (en) | 2021-12-24 | 2021-12-24 | Oil removing tool for fuel pump |
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| CN (1) | CN114472359B (en) |
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