CN218093282U - Adjustable oil supply plunger for injection pump - Google Patents
Adjustable oil supply plunger for injection pump Download PDFInfo
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- CN218093282U CN218093282U CN202222556371.0U CN202222556371U CN218093282U CN 218093282 U CN218093282 U CN 218093282U CN 202222556371 U CN202222556371 U CN 202222556371U CN 218093282 U CN218093282 U CN 218093282U
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- plunger
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- fuel feeding
- fuel
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Abstract
The utility model relates to an adjustable fuel feeding plunger for injection pump in the technical field of fuel injection, including the plunger body, the plunger body includes the plunger casing that is used for being connected with the injection pump and fixes, the inlet port has been preset to one side of plunger casing, the inside corresponding inlet port cooperation of plunger casing is provided with fuel feeding component, and this fuel feeding component lower extreme offsets with the injection pump and carries out reciprocating motion from top to bottom through the injection pump in the plunger casing, fuel feeding hole has been preset to the corresponding inlet port on the fuel feeding component, fuel feeding component's middle part cooperation is provided with adjusting part, and fuel feeding component's upper end corresponds inlet port and fuel feeding hole and has preset the nozzle opening; this fuel feeding plunger is through the speed of restriction oil feed to reach the effect of controlling the fuel feeding, when controlling the fuel feeding, can not cause the influence to the working stroke of fuel feeding plunger, thereby reduce the wearing and tearing of fuel feeding plunger at the adjustment fuel feeding, this fuel feeding plunger simple structure simultaneously, it is convenient to use.
Description
Technical Field
The utility model relates to a fuel injection technical field, in particular to fuel feeding plunger.
Background
The adjusting device used by the fuel injection pump in the prior art controls the fuel quantity between the fuel quantity control sleeve and the connecting plate, the fuel quantity control sleeve is abutted against the connecting plate to limit the working stroke of the fuel supply plunger, so that the effect of controlling the fuel supply quantity is achieved, the method has high requirements on the material of the fuel quantity control sleeve, the fuel quantity control sleeve is abraded in the reciprocating abutting process of the fuel quantity control sleeve and the connecting plate, after long-time work, due to the abrasion of the fuel quantity control sleeve, the stroke of the fuel supply plunger is deviated compared with the stroke before abrasion according to the abrasion degree of the fuel quantity control sleeve, the fuel supply quantity at the later stage is changed, and the fuel injection quantity is influenced, so that the fuel supply plunger for controlling the fuel inlet quantity and the fuel injection quantity is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the shortcoming that prior art exists above, provide an adjustable fuel feeding plunger for injection pump, this fuel feeding plunger is through the speed of restriction oil feed to reach the effect of controlling the fuel feeding volume, when controlling the fuel feeding volume, can not cause the influence to the working stroke of fuel feeding plunger, thereby reduce the wearing and tearing of fuel feeding plunger when the adjustment fuel feeding volume, this fuel feeding plunger simple structure simultaneously, it is convenient to use.
The purpose of the utility model is realized like this: the utility model provides an adjustable fuel feeding plunger for injection pump, includes plunger body (1), plunger body (1) is including being used for being connected fixed plunger casing (2) with the injection pump, inlet port (3) have been preset to one side of plunger casing (2), plunger casing (2) inside corresponds inlet port (3) cooperation and is provided with fuel feeding component, and this fuel feeding component lower extreme offsets with the injection pump and carries out reciprocating motion from top to bottom in plunger casing (2) inside through the injection pump, fuel feeding component is last to correspond inlet port (3) and to have preset fuel inlet (4), fuel feeding component's middle part cooperation is provided with adjusting part, and fuel feeding component's upper end corresponds inlet port (3) and fuel inlet (4) and has preset injection port (5).
When the utility model works, fuel enters the plunger shell (2) through the fuel inlet (3) of the plunger body (1), then enters the plunger inner shell (6) through the fuel inlet (4), and after the fuel enters the plunger inner shell (6), the fuel supply plunger (10) reciprocates up and down, when the oil supply plunger (10) moves to the highest point, the connecting module (11) is propped against the uppermost end of the connecting groove (12), at the moment, the plunger inner shell (6) moves upwards until the plunger inner shell is propped against the upper end of the oil injection module (16), at the moment, the oil supply plunger (10) injects fuel oil through an oil injection hole (5) of the oil injection module (16) to reciprocate, when the fuel injection quantity needs to be controlled, the adjusting screw rod (21) is pushed and pulled back and forth, so that the adjusting part (7) meshed with the adjusting screw rod rotates, when the adjusting part (7) rotates, the plunger inner shell (6) rotates along with the adjusting part, when the plunger inner shell (6) rotates, the fuel inlet hole (4) and the fuel inlet hole (3) are staggered with each other, when the fuel inlet hole (4) is aligned with the central point of the fuel inlet hole (3), at the moment, the oil inlet amount is the maximum, otherwise, the oil inlet amount is reduced, when fuel enters the inner shell (6) of the plunger, due to the existence of the upper sealing module (9) and the lower sealing module (23), the fuel oil can be effectively prevented from entering the inner part of the plunger inner shell (6) and then flowing out.
The utility model has the advantages that: the utility model provides an adjustable fuel feeding plunger for injection pump, this fuel feeding plunger is through the speed of restriction oil feed to reach the effect of controlling the fuel feeding volume, when controlling the fuel feeding volume, can not cause the influence to the working stroke of fuel feeding plunger, thereby reduce the wearing and tearing of fuel feeding plunger at the adjustment fuel feeding volume, this fuel feeding plunger simple structure simultaneously, it is convenient to use.
As a further improvement of the utility model, in order to prevent the plunger inner shell (6) from oil leakage, the oil inlet speed is convenient to control; the oil supply assembly is including setting up in the oil supply plunger (10) of the setting of inside plunger inner shell (6) of plunger casing (2) and cooperation plunger inner shell (6), and this plunger inner shell (6) middle part corresponds adjusting part and has preset regulation portion (7), it adjusts the screw thread to preset on regulation portion (7), the lower extreme suit of plunger inner shell (6) is provided with reset spring (8), the outer wall of plunger inner shell (6) corresponds reset spring (8) and encircles and is provided with upside sealing module (9), and the outer wall of this upside sealing module (9) is sealed mutually with the inner wall of plunger casing (2), the upper end of reset spring (8) offsets with the downside of upside sealing module (9).
As a further improvement of the utility model, the oil supply plunger (10) can reciprocate up and down for convenience; the oil supply plunger (10) is embedded in the plunger inner shell (6), the bottom of the oil supply plunger (10) corresponds to the plunger inner shell (6) and is pre-provided with a connecting module (11), the connecting module (11) is arranged in a square shape and is integrally formed with the oil supply plunger (10), the lower end of the plunger inner shell (6) corresponds to the connecting module (11) and is pre-provided with a connecting groove (12), the inner wall of the connecting groove (12) is connected with the connecting module (11), the connecting module (11) performs vertical reciprocating motion in the connecting groove (12), the upper end of the plunger (10) is pre-provided with an oil injection part (13) corresponding to an oil injection hole (5), the oil injection part (13) is provided with an oil injection flow channel (14) which is linearly arranged in a matching mode, the lower end of the oil supply plunger (10) is pre-provided with a limiting part (15), the outer part of the limiting part (15) corresponds to a reset spring (8) in a sleeving mode and is provided with a lower side sealing module (23), and the lower end of the reset spring (8) abuts against the upper side face of the lower side sealing module (23).
As a further improvement of the utility model, the oil injection quantity is convenient to adjust; the plunger is characterized in that an oil injection module (16) is further arranged inside the plunger shell (2) in a matched mode at the upper end of the plunger inner shell (6), the oil injection module (16) is arranged corresponding to the plunger inner shell (6) and is arranged in a hollow mode, an auxiliary module (17) is arranged inside the oil injection module (16) in an embedded mode corresponding to the oil supply plunger (10), and a plurality of groups of oil control modules (18) are arranged on the outer wall of one side of the auxiliary module (17) close to the oil injection flow channel (14) in a preset mode.
As a further improvement of the utility model, in order to facilitate the oil supply plunger (10) to send the fuel oil into the oil injection hole (5); the oil control modules (18) are arranged in a diamond shape and are provided with four groups, each group of oil control modules (18) surrounds the outer wall of the auxiliary module (17), gaps are reserved between the corresponding oil control modules (18), the gaps are called secondary oil conveying gaps (19), and the secondary oil conveying gaps (19) are arranged corresponding to the oil spraying flow passages (14).
As a further improvement of the utility model, the oil injection module (16) is limited conveniently; the oil injection module (16) is provided with a limiting connecting part (20) corresponding to the plunger shell (2), and the limiting connecting part (20) is located at the position, close to the plunger shell (2), of the lower end of the oil injection module (16) and is embedded into the upper end of the plunger shell (2) through the limiting connecting part (20).
As a further improvement of the utility model, the oil supply plunger (10) is convenient to rotate, so as to adjust the oil inlet amount; the adjusting component is an adjusting screw rod (21), the adjusting screw rod (21) is transversely arranged on one side of the middle of the plunger shell (2) and is meshed with an adjusting part (7) of the plunger inner shell (6), an adjusting connecting part (22) is preset in the middle of the plunger shell (2) corresponding to the adjusting screw rod (21), the adjusting connecting part (22) is transversely arranged corresponding to the adjusting part (7), and the adjusting screw rod (21) is inserted into the adjusting connecting part (22) and is meshed with the adjusting part (7).
Drawings
Fig. 1 is a schematic view of the present invention.
Fig. 2 is a schematic view of the connection of the return spring of the present invention.
Fig. 3 is a schematic view of the oil supply plunger of the present invention.
Fig. 4 is a schematic view of a part of the inner casing of the plunger according to the present invention.
Fig. 5 is a schematic diagram of the auxiliary module of the present invention.
The plunger comprises a plunger body 1, a plunger shell 2, an oil inlet hole 3, a fuel inlet hole 4, an oil injection hole 5, a plunger inner shell 6, an adjusting part 7, a return spring 8, an upper side sealing module 9, an oil supply plunger 10, a connecting module 11, a connecting groove 12, an oil injection part 13, an oil injection runner 14, a limiting part 15, an oil injection module 16, an auxiliary module 17, an oil control module 18, a secondary oil feeding gap 19, a limiting connecting part 20, an adjusting screw 21, an adjusting connecting part 22 and a lower side sealing module 23.
Detailed Description
As shown in fig. 1-5, an adjustable fuel feeding plunger for a fuel injection pump includes a plunger body 1, the plunger body 1 includes a plunger housing 2 for being connected and fixed with the fuel injection pump, an oil inlet hole 3 is preset on one side of the plunger housing 2, an oil supply assembly is provided inside the plunger housing 2 corresponding to the oil inlet hole 3 in a matching manner, the lower end of the oil supply assembly abuts against the fuel injection pump and performs vertical reciprocating motion inside the plunger housing 2 through the fuel injection pump, a fuel inlet hole 4 is preset on the oil supply assembly corresponding to the oil inlet hole 3, an adjusting assembly is provided in the middle of the oil supply assembly in a matching manner, and an oil outlet hole 5 is preset on the upper end of the fuel supply assembly corresponding to the oil inlet hole 3 and the fuel inlet hole 4.
Oil supply unit is including setting up in the oil supply plunger 10 of the setting of plunger inner shell 6 and cooperation plunger inner shell 6 inside plunger casing 2, and the regulation part 7 has been preset to corresponding adjusting part in 6 middle parts of this plunger inner shell, adjust the screw thread on the regulation part 7 has been preset, the lower extreme suit of plunger inner shell 6 is provided with reset spring 8, the outer wall of plunger inner shell 6 corresponds reset spring 8 and encircles and is provided with upside sealing module 9, and the outer wall of this upside sealing module 9 is sealed mutually with plunger casing 2's inner wall, reset spring 8's upper end offsets with upside sealing module 9's downside.
The oil supply plunger 10 is embedded in the plunger inner shell 6, the bottom of the oil supply plunger 10 is pre-provided with a connecting module 11 corresponding to the plunger inner shell 6, the connecting module 11 is arranged in a square shape and is integrally formed with the oil supply plunger 10, the lower end of the plunger inner shell 6 is pre-provided with a connecting groove 12 corresponding to the connecting module 11, the inner wall of the connecting groove 12 is connected with the connecting module 11, the connecting module 11 reciprocates up and down in the connecting groove 12, an oil injection part 13 is pre-provided at the upper end of the oil supply plunger 10 corresponding to the oil injection hole 5, an oil injection runner 14 arranged in a straight line shape is arranged on the oil injection part 13 in a matching manner, a limiting part 15 is pre-provided at the lower end of the oil supply plunger 10, a lower side sealing module 23 is arranged outside the limiting part 15 corresponding to a reset spring 8 in a sleeving manner, and the lower end of the reset spring 8 abuts against the upper side surface of the lower side sealing module 23.
The upper end of the plunger inner shell 6 is located inside the plunger shell 2 and is further provided with an oil injection module 16 in a matched mode, the oil injection module 16 corresponds to the plunger inner shell 6 and is arranged in a hollow mode, an auxiliary module 17 is arranged inside the oil injection module 16 in an embedded mode corresponding to the oil supply plunger 10, and a plurality of oil control modules 18 are arranged on the outer wall of one side of the auxiliary module 17 in a preset mode close to the oil injection flow channel 14.
The oil control modules 18 are arranged in a diamond shape and are provided with four groups, each group of oil control modules 18 surrounds the outer wall of the auxiliary module 17, a gap is reserved between the corresponding oil control modules 18, the gap is called as a secondary oil delivery gap 19, and the secondary oil delivery gap 19 is arranged corresponding to the oil injection flow passage 14.
The oil injection module 16 is provided with a limiting connection part 20 corresponding to the plunger housing 2, and the limiting connection part 20 is located at a position, close to the plunger housing 2, of the lower end of the oil injection module 16 and is embedded in the upper end of the plunger housing 2 through the limiting connection part 20.
The adjusting component is an adjusting screw 21, the adjusting screw 21 is transversely arranged on one side of the middle of the plunger housing 2 and meshed with the adjusting part 7 of the plunger inner housing 6, an adjusting connecting part 22 is preset in the middle of the plunger housing 2 corresponding to the adjusting screw 21, the adjusting connecting part 22 is transversely arranged corresponding to the adjusting part 7, and the adjusting screw 21 is inserted into the adjusting connecting part 22 and meshed with the adjusting part 7.
The fuel inlet hole 4 is tightly attached to the inner wall of the plunger housing 2, and the diameter of the fuel inlet hole 4 is smaller than that of the fuel inlet hole 3 on the plunger housing 2.
The utility model discloses the during operation: when fuel oil enters the plunger inner shell 6, the fuel oil supply plunger 10 reciprocates up and down, when the fuel oil supply plunger 10 moves to the highest point, the connecting module 11 abuts against the uppermost end of the connecting groove 12, the plunger inner shell 6 moves up until abutting against the upper end of the fuel oil injection module 16, the fuel oil supply plunger 10 ejects the fuel oil through the fuel oil injection hole 5 of the fuel oil injection module 16, and the reciprocating motion is adopted.
The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some technical features without creative labor, and these substitutions and modifications are all within the protection scope.
Claims (8)
1. The utility model provides an adjustable fuel feeding plunger for injection pump, includes plunger body (1), its characterized in that: plunger body (1) is including being used for being connected fixed plunger casing (2) with the injection pump, inlet port (3) have been preset to one side of plunger casing (2), plunger casing (2) inside corresponds inlet port (3) cooperation and is provided with fuel feeding component, and this fuel feeding component lower extreme offsets and carries out reciprocating motion from top to bottom in plunger casing (2) inside through the injection pump with the injection pump, fuel inlet (4) have been preset corresponding inlet port (3) on the fuel feeding component, fuel feeding component's middle part cooperation is provided with adjusting part, and fuel feeding component's upper end corresponds inlet port (3) and fuel inlet (4) and has preset nozzle opening (5).
2. The adjustable fuel supply plunger for an injection pump according to claim 1, wherein: the oil supply assembly is including setting up in the oil supply plunger (10) of the setting of inside plunger inner shell (6) of plunger casing (2) and cooperation plunger inner shell (6), and this plunger inner shell (6) middle part corresponds adjusting part and has preset regulation portion (7), it adjusts the screw thread to preset on regulation portion (7), the lower extreme suit of plunger inner shell (6) is provided with reset spring (8), the outer wall of plunger inner shell (6) corresponds reset spring (8) and encircles and is provided with upside sealing module (9), and the outer wall of this upside sealing module (9) is sealed mutually with the inner wall of plunger casing (2), the upper end of reset spring (8) offsets with the downside of upside sealing module (9).
3. The adjustable fuel supply plunger for an injection pump according to claim 2, wherein: the oil supply plunger (10) is embedded in the plunger inner shell (6), the bottom of the oil supply plunger (10) corresponds to the plunger inner shell (6) and is pre-provided with a connecting module (11), the connecting module (11) is arranged in a square shape and is integrally formed with the oil supply plunger (10), the lower end of the plunger inner shell (6) corresponds to the connecting module (11) and is pre-provided with a connecting groove (12), the inner wall of the connecting groove (12) is connected with the connecting module (11), the connecting module (11) performs vertical reciprocating motion in the connecting groove (12), the upper end of the plunger (10) is pre-provided with an oil injection part (13) corresponding to an oil injection hole (5), the oil injection part (13) is provided with an oil injection flow channel (14) which is linearly arranged in a matching mode, the lower end of the oil supply plunger (10) is pre-provided with a limiting part (15), the outer part of the limiting part (15) corresponds to a reset spring (8) in a sleeving mode and is provided with a lower side sealing module (23), and the lower end of the reset spring (8) abuts against the upper side face of the lower side sealing module (23).
4. The adjustable fuel supply plunger for an injection pump according to claim 2, wherein: the plunger is characterized in that an oil injection module (16) is further arranged inside the plunger shell (2) in a matched mode at the upper end of the plunger inner shell (6), the oil injection module (16) is arranged corresponding to the plunger inner shell (6) and is arranged in a hollow mode, an auxiliary module (17) is arranged inside the oil injection module (16) in an embedded mode corresponding to the oil supply plunger (10), and a plurality of groups of oil control modules (18) are arranged on the outer wall of one side of the auxiliary module (17) close to the oil injection flow channel (14) in a preset mode.
5. The adjustable fuel supply plunger for the oil injection pump according to claim 4, wherein: the oil control modules (18) are arranged in a diamond shape and are provided with four groups, each group of oil control modules (18) surrounds the outer wall of the auxiliary module (17), gaps are reserved between the corresponding oil control modules (18), the gaps are called secondary oil conveying gaps (19), and the secondary oil conveying gaps (19) are arranged corresponding to the oil spraying flow passages (14).
6. The adjustable fuel supply plunger for an oil injection pump according to claim 4, wherein: the oil injection module (16) is provided with a limiting connecting part (20) corresponding to the plunger shell (2), and the limiting connecting part (20) is located at the position, close to the plunger shell (2), of the lower end of the oil injection module (16) and is embedded into the upper end of the plunger shell (2) through the limiting connecting part (20).
7. The adjustable fuel supply plunger for an injection pump according to claim 1, wherein: the adjusting component is an adjusting screw rod (21), the adjusting screw rod (21) is transversely arranged on one side of the middle of the plunger shell (2) and is meshed with an adjusting portion (7) of the plunger inner shell (6), an adjusting connecting portion (22) is preset in the middle of the plunger shell (2) corresponding to the adjusting screw rod (21), the adjusting connecting portion (22) is transversely arranged and corresponds to the adjusting portion (7) in a set mode, and the adjusting screw rod (21) is inserted into the adjusting connecting portion (22) and is meshed with the adjusting portion (7).
8. The adjustable fuel supply plunger for the oil injection pump according to claim 1, wherein: the fuel inlet hole (4) is tightly attached to the inner wall of the plunger shell (2), and the diameter of the fuel inlet hole (4) is smaller than that of the fuel inlet hole (3) in the plunger shell (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222556371.0U CN218093282U (en) | 2022-09-27 | 2022-09-27 | Adjustable oil supply plunger for injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222556371.0U CN218093282U (en) | 2022-09-27 | 2022-09-27 | Adjustable oil supply plunger for injection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218093282U true CN218093282U (en) | 2022-12-20 |
Family
ID=84455446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222556371.0U Active CN218093282U (en) | 2022-09-27 | 2022-09-27 | Adjustable oil supply plunger for injection pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218093282U (en) |
-
2022
- 2022-09-27 CN CN202222556371.0U patent/CN218093282U/en active Active
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