CN215213743U - Oil inlet and return device for attenuating pressure waves - Google Patents
Oil inlet and return device for attenuating pressure waves Download PDFInfo
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- CN215213743U CN215213743U CN202121368216.5U CN202121368216U CN215213743U CN 215213743 U CN215213743 U CN 215213743U CN 202121368216 U CN202121368216 U CN 202121368216U CN 215213743 U CN215213743 U CN 215213743U
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Abstract
The utility model is used for the diesel engine field especially relates to an oil inlet and return device of decay pressure wave, including the buffer component, inside is equipped with oil feed cushion chamber and oil return cushion chamber, is equipped with oil feed passageway and oil return passageway on the buffer component, and the oil feed passageway communicates the oil feed cushion chamber, and oil return passageway communicates the oil return cushion chamber; the oil inlet intermediate pipe is arranged in the oil inlet buffer cavity and is provided with a first buffer through hole communicated with the oil inlet buffer cavity; the oil return intermediate pipe is arranged in the oil return buffer cavity, a second buffer through hole communicated with the oil return buffer cavity is formed in the oil return intermediate pipe, fuel oil enters the oil inlet intermediate pipe from the oil inlet channel, then enters the oil inlet buffer cavity from the first buffer through hole, and then enters an oil inlet of the oil injection pump from the oil inlet buffer cavity, return oil firstly enters the oil return buffer cavity and then enters the oil return pipe from the second buffer through hole, and therefore pressure pulse waves generated by the oil injection pump can be effectively reduced after the fuel oil is subjected to multiple buffering, and the influence of the pulse waves on an oil system is reduced.
Description
Technical Field
The utility model is used for the diesel engine field especially relates to an oil inlet and return device of decay pressure wave.
Background
When fuel oil of a diesel engine enters an oil injection pump or oil returns from the oil injection pump, due to the operating characteristics of the four-stroke diesel engine and the motion characteristics of the oil injection pump, low-frequency fuel oil pressure pulse waves can be generated on a fuel oil inlet main pipe, and the pulse waves can have adverse effects on the whole fuel oil system.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide an oil return device advances of decay pressure wave, can attenuate the pressure pulse ripples that is produced by the injection pump, reduce the influence of pulse ripples to whole fuel oil system.
The utility model provides a technical scheme that its technical problem adopted is: an oil inlet and return device for attenuating pressure waves comprises
The oil inlet buffer cavity is used for being communicated with an oil inlet of an oil injection pump, the oil return buffer cavity is used for being communicated with an oil return port of the oil injection pump, an oil inlet channel and an oil return channel are arranged on the buffer component, the oil inlet channel is communicated with the oil inlet buffer cavity, and the oil return channel is communicated with the oil return buffer cavity;
the oil inlet middle pipe is installed in the oil inlet buffer cavity, two ends of the oil inlet middle pipe are respectively butted with the oil inlet channel, and a first buffer through hole communicated with the oil inlet buffer cavity is formed in the oil inlet middle pipe;
and the oil return middle pipe is arranged in the oil return buffer cavity, two ends of the oil return middle pipe are respectively butted with the oil return channel, and a second buffer through hole communicated with the oil return buffer cavity is formed in the oil return middle pipe.
The technical scheme at least has the following advantages or beneficial effects: in the working process, fuel oil enters the oil inlet intermediate pipe of the buffering component from the oil inlet channel, then enters the oil inlet buffering cavity through the first buffering through hole on the oil inlet intermediate pipe, and then enters the oil inlet of the oil injection pump from the oil inlet buffering cavity.
Further conduct the utility model discloses technical scheme's improvement, be equipped with the intercommunication on the buffering component the pressure release passageway of oil feed cushion chamber, install the pressure release cock on the pressure release passageway.
Further conduct the utility model discloses technical scheme's improvement, the oil feed passageway is located the one end of oil feed cushion chamber is equipped with first assembly mouth, the both ends of oil feed intervalve be equipped with the first assembly step of first assembly mouth complex.
Further conduct the utility model discloses technical scheme's improvement, oil return passageway is located the one end of oil return cushion chamber is equipped with the second assembly mouth, the both ends of oil return intervalve be equipped with second assembly mouth complex second assembly step.
Further conduct the utility model discloses technical scheme's improvement, the buffering component includes end cover and buffering component body, the oil feed cushion chamber with oil return cushion chamber interval is established this is internal to the buffering component, end cover installs the opening end of buffering component body.
Further conduct the utility model discloses technical scheme's improvement, end cover with install the sealing washer additional between the opening end of buffering component body.
Further conduct the utility model discloses technical scheme's improvement, the installation advances oil pipe on the oil feed passageway.
Further conduct the utility model discloses technical scheme's improvement, advance oil pipe with install the sealing washer additional between the oil feed passageway.
Further conduct the utility model discloses technical scheme's improvement, the last installation of oil return passageway returns oil pipe.
Further conduct the utility model discloses technical scheme's improvement, return oil pipe with install the sealing washer additional between the oil return passageway.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a side view of the embodiment shown in FIG. 1;
FIG. 3 is a cross-sectional view taken along line C-C in the embodiment of FIG. 2;
fig. 4 is a partial structural cross-sectional view of the embodiment of fig. 3.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the present invention, if there is a description of directions (up, down, left, right, front and back), it is only for convenience of description of the technical solution of the present invention, and it is not intended to indicate or imply that the technical features indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the utility model, the meaning of a plurality of is one or more, the meaning of a plurality of is more than two, and the meaning of more than two is understood as not including the number; the terms "above", "below", "within" and the like are understood to include the instant numbers. In the description of the present invention, if there is any description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.
In the present invention, unless otherwise explicitly defined, the terms "set", "install", "connect", and the like are to be understood in a broad sense, and for example, may be directly connected or may be indirectly connected through an intermediate medium; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.
The utility model provides an oil return device advances of decay pressure wave, it mainly is applied to the diesel engine, and the following application that combines this application on the diesel engine carries out the detailed description for the example.
Referring to fig. 1 to 3, the oil inlet and return device for attenuating pressure waves includes a buffer member 1, an oil inlet intermediate pipe 2 and an oil return intermediate pipe 3, the oil inlet buffer cavity 100 and the oil return buffer cavity 101 are arranged in the buffer member 1, the oil inlet buffer cavity 100 is used for communicating an oil inlet of the oil injection pump 4, the oil return buffer cavity 101 is used for communicating an oil return port of the oil injection pump 4, the buffer member 1 is provided with an oil inlet channel 102 and an oil return channel 103, the oil inlet channel 102 is communicated with the oil inlet buffer cavity 100, the oil return channel 103 is communicated with the oil return buffer cavity 101, the oil inlet intermediate pipe 2 is arranged in the oil inlet buffer cavity 100, two ends of the oil inlet intermediate pipe 2 are respectively butted with the oil inlet channel 102, the oil inlet intermediate pipe 2 is provided with a first buffer through hole 20 communicated with the oil inlet buffer cavity 100, the oil return intermediate pipe 3 is arranged in the oil return buffer cavity 101, two ends of the oil return intermediate pipe 3 are respectively butted with the oil return channel 103, and the oil return intermediate pipe 3 is provided with a second buffer through hole 30 communicated with the oil return buffer cavity 101.
When the diesel engine runs, fuel enters the fuel inlet intermediate pipe 2 in the buffer component 1 from the fuel inlet passage 102, then enters the fuel inlet buffer cavity 100 through the first buffer through hole 20 on the fuel inlet intermediate pipe 2, and then enters the fuel inlet of the fuel injection pump 4 from the fuel inlet buffer cavity 100, return oil sprayed from the fuel outlet of the fuel injection pump 4 firstly enters the return oil buffer cavity 101 and then enters the return oil pipe 8 through the second buffer through hole 30 on the return oil intermediate pipe 3, so that the fuel can effectively reduce pressure pulse waves generated to the fuel injection pump 4 after being subjected to multiple buffering of the fuel inlet buffer cavity 100 and the return oil buffer cavity 101, reduce impact and cavitation of the fuel on accessories, reduce the influence of the pulse waves on a fuel system, reduce the risk of pump sticking, ensure the safety of the diesel engine and prolong the service life of a fuel engine.
The oil inlet intermediate pipe 2 is installed in the middle of the oil inlet buffer cavity 100, and the first buffer through hole 20 is formed in the middle of the oil inlet intermediate pipe 2.
The oil return middle pipe 3 is arranged in the middle of the oil return buffer cavity 101, and the second buffer through hole 20 is arranged in the middle of the oil return middle pipe 3.
The utility model discloses in, buffering component 1 includes end cover 10 and buffering component body 11, and buffering component body 11 is open structure, and oil feed cushion chamber 100 and oil return cushion chamber 101 are all established in buffering component body 11, and two mutual separations in oil feed cushion chamber 100 and oil return cushion chamber 101, and the open end at buffering component body 11 is installed to end cover 10.
Two oil inlet channels 102 are arranged, one oil inlet channel 102 is arranged on the end cover 10, the other oil inlet channel 102 is arranged on the buffering component body 11, two oil return channels 103 are also arranged, one oil return channel 103 is arranged on the end cover 10, the other oil return channel is arranged on the buffering component body 11, a first assembly step is arranged at one end, located in the oil inlet buffering cavity 100, of the oil inlet channel 102, and first avoiding steps matched with the first assembly steps are arranged at two ends of the oil inlet middle pipe 2.
Specifically, for the oil inlet passage 102 provided on the end cover 10, the first assembly step is provided on the inner side of the end cover 10, for the oil inlet passage 102 provided on the buffering member body 11, the first assembly step is provided on the inner side of the buffering member body 11, and the first avoidance steps at the two ends of the oil inlet intermediate pipe 2 are respectively nested in the two first assembly steps, so as to ensure that the oil inlet intermediate pipe 2 is kept stable inside the oil inlet buffering cavity 100.
Similarly, for the oil return passage 103 provided on the end cover 10, the second assembly steps are provided inside the end cover 10, for the oil return passage 103 provided on the buffer member body 11, the second assembly steps are provided inside the buffer member body 11, and the second avoidance steps at the two ends of the oil return intermediate pipe 3 are respectively nested in the two second assembly steps, so as to ensure that the oil return intermediate pipe 3 is kept stable inside the oil return buffer cavity 101.
The end cap 10 in the present application has a flange structure, and is fixedly connected to the cushioning member body 11 by bolts.
In some embodiments, the buffering member 1 is provided with a pressure relief passage 5 communicated with the oil inlet buffering cavity 100, the pressure relief passage 5 is provided with a pressure relief cock 6, and air in the oil inlet buffering cavity 100 can be released by unscrewing the pressure relief cock 6, so that the effects of exhausting and reducing pressure are achieved.
In addition, a sealing ring is additionally arranged between the end cover 10 and the open end of the buffering member body 11, so that the overall sealing performance of the buffering member 1 is ensured.
The utility model discloses in, install oil inlet pipe 7 on the oil feed passageway 102, oil pipe 8 is returned in the installation on oil return passageway 103, and advances to install the sealing washer between oil pipe 7 and the oil feed passageway 102 additional to realize advancing to seal between oil pipe 7 and the oil feed passageway 102, install the sealing washer additional between oil pipe 8 and the oil return passageway 103, in order to realize returning to seal between oil pipe 8 and the oil return passageway 103.
Of course, the present invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.
Claims (10)
1. An oil inlet and return device for attenuating pressure waves is characterized in that: comprises that
The oil-feeding buffer cavity (100) and the oil-returning buffer cavity (101) are arranged in the buffer component (1), the oil-feeding buffer cavity (100) is used for communicating an oil inlet of an oil injection pump, the oil-returning buffer cavity (101) is used for communicating an oil return port of the oil injection pump, an oil-feeding channel (102) and an oil-returning channel (103) are arranged on the buffer component (1), the oil-feeding channel (102) is communicated with the oil-feeding buffer cavity (100), and the oil-returning channel (103) is communicated with the oil-returning buffer cavity (101);
the oil inlet middle pipe (2) is installed in the oil inlet buffer cavity (100), two ends of the oil inlet middle pipe (2) are respectively butted with the oil inlet channel (102), and a first buffer through hole (20) communicated with the oil inlet buffer cavity (100) is formed in the oil inlet middle pipe (2);
pipe (3) in the middle of the oil return, install in oil return cushion chamber (101), pipe (3) both ends in the middle of the oil return respectively with oil return passageway (103) butt joint, be equipped with the intercommunication in the middle of the oil return on pipe (3) second buffering through-hole (30) of oil return cushion chamber (101).
2. The pressure wave attenuating oil inlet and return device of claim 1, wherein: the buffer component (1) is provided with a pressure relief channel (5) communicated with the oil inlet buffer cavity (100), and the pressure relief channel (5) is provided with a pressure relief cock (6).
3. The pressure wave attenuating oil inlet and return device of claim 1, wherein: one end of the oil inlet channel (102) located in the oil inlet buffer cavity (100) is provided with a first assembly step, and two ends of the oil inlet intermediate pipe (2) are provided with first avoidance steps matched with the first assembly steps.
4. The pressure wave attenuating oil inlet and return device of claim 1, wherein: the oil return passage (103) is located one end of the oil return buffer cavity (101) is provided with a second assembly step, and two ends of the oil return intermediate pipe (3) are provided with a second avoidance step matched with the second assembly step.
5. The pressure wave attenuating oil inlet and return device of claim 1, wherein: buffering component (1) includes end cover (10) and buffering component body (11), oil feed cushion chamber (100) with oil return cushion chamber (101) interval is established in buffering component body (11), install end cover (10) the open end of buffering component body (11).
6. The pressure wave attenuating oil inlet and return device of claim 5, wherein: and a sealing ring is additionally arranged between the end cover (10) and the open end of the buffer component body (11).
7. The pressure wave attenuating oil inlet and return device of claim 1, wherein: and an oil inlet pipe (7) is arranged on the oil inlet channel (102).
8. The pressure wave attenuating oil inlet and return device of claim 7, wherein: and a sealing ring is additionally arranged between the oil inlet pipe (7) and the oil inlet channel (102).
9. The pressure wave attenuating oil inlet and return device of claim 1, wherein: an oil return pipe (8) is arranged on the oil return channel (103).
10. The pressure wave attenuating oil inlet and return device of claim 9, wherein: and a sealing ring is additionally arranged between the oil return pipe (8) and the oil return channel (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121368216.5U CN215213743U (en) | 2021-06-18 | 2021-06-18 | Oil inlet and return device for attenuating pressure waves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121368216.5U CN215213743U (en) | 2021-06-18 | 2021-06-18 | Oil inlet and return device for attenuating pressure waves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215213743U true CN215213743U (en) | 2021-12-17 |
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ID=79433338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121368216.5U Active CN215213743U (en) | 2021-06-18 | 2021-06-18 | Oil inlet and return device for attenuating pressure waves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215213743U (en) |
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2021
- 2021-06-18 CN CN202121368216.5U patent/CN215213743U/en active Active
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