CN219299514U - Vacuum pump of diesel engine - Google Patents
Vacuum pump of diesel engine Download PDFInfo
- Publication number
- CN219299514U CN219299514U CN202223594440.3U CN202223594440U CN219299514U CN 219299514 U CN219299514 U CN 219299514U CN 202223594440 U CN202223594440 U CN 202223594440U CN 219299514 U CN219299514 U CN 219299514U
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- oil
- engine oil
- oil inlet
- pump
- engine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model is a diesel engine vacuum pump, comprising: the pump shell is provided with an oil inlet hole for introducing engine oil; the oil inlet hole is configured to enable the engine oil to flow back into the pump shell or flow out of the pump shell under the action of self gravity when the engine oil is placed in the hole; when the engine oil is static on the inner wall of the oil inlet hole, the engine oil can be influenced by gravity and slide into or out of the engine oil pump along the inner wall of the engine oil pump, so that the engine oil is not retained on the inner wall of the oil inlet hole, and the coagulation and blockage of the engine oil are prevented.
Description
Technical Field
The utility model relates to a vacuum pump, in particular to a diesel engine vacuum pump.
Background
The vacuum pump mainly comprises a pump body, a rotor, blades, an air inlet and an air outlet and the like, and takes a single-blade vacuum pump as an example, when driving torque rotates the rotor through an engine cam shaft and a vacuum pump connector, the single blade is driven to rotate along the outline of a cavity of the vacuum pump, the single blade rotates at the eccentric position of the cavity, the upper side of the single blade is divided into two cavities, the left side of the single blade is a vacuum cavity, and the volume of the cavity is larger and larger along with the rotation of the single blade.
The vacuum pump is connected with the oil pump in series through the oil inlet, engine oil in the oil pump enters the vacuum pump through the oil inlet, but under the condition that the vacuum pump does not work, the inner wall of the conventional oil inlet is a straight wall, the engine oil can be detained on the inner wall of the oil inlet, and in a low-temperature environment, the long-time engine oil detention can cause the engine oil to be condensed so as to block the oil inlet, so that the engine oil cannot enter the vacuum pump;
in summary, how to prevent the oil from blocking the oil inlet hole is an urgent problem to be solved by researchers in the field.
Disclosure of Invention
The utility model aims to solve the technical problems that: how to prevent the engine oil from blocking the oil inlet;
in order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model is a diesel engine vacuum pump, comprising: the pump shell is provided with an oil inlet hole for introducing engine oil; the oil inlet hole is configured to enable the engine oil to flow back into the pump shell or flow out of the pump shell under the action of self gravity when the engine oil is placed in the hole;
in this scheme, when the engine oil is placed on the inlet port inner wall, the engine oil can receive gravity influence, and the landing is to the engine oil pump or the engine oil pump is outside along the engine oil pump inner wall, just so not have the engine oil to be detained on the inlet port inner wall, has prevented the condensation jam of engine oil.
In order to illustrate the concrete structure of the oil inlet, the oil inlet is a reducing hole, one end of the oil inlet extends to the other end, and the inner diameter of the oil inlet is gradually increased or reduced;
in this scheme, the inlet port is the reducing hole, and the inner wall of inlet port like this sets up for the slope, and when the engine oil was placed on the inlet port inner wall, the engine oil can be along the inner wall entering into the pump body of slope, or flow outside the pump body, and the inlet port is just so can not be placed in to the engine oil, has prevented that the inlet port department from taking place to coagulate.
To illustrate another embodiment of the oil inlet, the utility model adopts the end part of the oil inlet to the middle part of the oil inlet, and the inner diameter of the oil inlet is gradually reduced.
The two ends of the oil inlet hole are towards the center, the inner diameter of the oil inlet hole is gradually reduced, and when the engine oil is placed on the inner wall of the oil inlet hole, the engine oil enters the pump body along the inclined inner wall or flows out of the pump body, so that the engine oil is prevented from being coagulated at the oil inlet hole.
The utility model has the beneficial effects that: the utility model relates to a diesel engine vacuum pump, when engine oil is placed on the inner wall of an oil inlet hole, the engine oil can be influenced by gravity and slide into or out of the engine oil pump along the inner wall of the engine oil pump, so that the engine oil is not detained on the inner wall of the oil inlet hole, and the coagulation and blockage of the engine oil are prevented.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the oil inlet hole embodiment 1;
FIG. 3 is another schematic view of the structure of the oil inlet hole embodiment 1;
FIG. 4 is a schematic view of the structure of the oil inlet hole implementation 2;
in the figure: 1-pump shell and 2-oil inlet.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
As shown in fig. 1-2, the present utility model is a diesel vacuum pump comprising: the pump shell 1 is provided with an oil inlet hole 2 for introducing engine oil; the oil inlet hole 1 is configured such that when the engine oil is placed in the hole, the engine oil flows back into the pump shell 1 or is guided out of the pump shell 1 under the action of self gravity;
in this scheme, when the engine oil is placed on the inlet port inner wall, the engine oil can receive gravity influence, and the landing is to the engine oil pump or the engine oil pump is outside along the engine oil pump inner wall, just so not have the engine oil to be detained on the inlet port inner wall, has prevented the condensation jam of engine oil.
Example 1
1-3, in order to illustrate a specific structure of the oil inlet, the oil inlet 2 is a reducing hole, one end of the oil inlet 2 extends to the other end, and the inner diameter of the oil inlet is gradually increased or reduced;
in the scheme, the oil inlet is a reducing hole, so that the inner wall of the oil inlet is obliquely arranged, and when engine oil is placed on the inner wall of the oil inlet, the engine oil enters the pump body along the oblique inner wall or flows out of the pump body, so that the engine oil is not placed in the oil inlet, and coagulation at the oil inlet is prevented;
in embodiment 1, the oil hole may be gradually increased in diameter from the outside of the pump casing to the inside of the pump casing, so that the oil flows back into the pump casing when the oil is left in the oil hole;
the oil hole may be designed to gradually decrease in diameter from the outside of the pump casing to the inside of the pump casing, so that the oil is guided to the outside of the pump casing when the oil is left in the oil hole.
Example 2
As shown in fig. 1 and 4, in order to illustrate another embodiment of the oil inlet hole, the present utility model employs an end portion of the oil inlet hole 2 to a middle portion of the oil inlet hole 2, and an inner diameter thereof is gradually reduced.
The two ends of the oil inlet hole are towards the center, the inner diameter of the oil inlet hole is gradually reduced, and when the engine oil is placed on the inner wall of the oil inlet hole, the engine oil enters the pump body along the inclined inner wall or flows out of the pump body, so that the engine oil is prevented from being coagulated at the oil inlet hole.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (3)
1. A diesel vacuum pump, comprising:
the pump shell is provided with an oil inlet hole for introducing engine oil;
the oil inlet hole is configured such that when the engine oil is placed in the hole, the engine oil flows back into the pump shell or is guided out of the pump shell under the action of self gravity.
2. The vacuum pump of claim 1, wherein the oil inlet is a reducing hole,
one end of the oil inlet hole extends to the other end, and the inner diameter of the oil inlet hole is gradually increased or reduced.
3. The vacuum pump of claim 1, wherein the inner diameter of the oil inlet hole is gradually reduced from the end to the middle of the oil inlet hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223594440.3U CN219299514U (en) | 2022-12-31 | 2022-12-31 | Vacuum pump of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223594440.3U CN219299514U (en) | 2022-12-31 | 2022-12-31 | Vacuum pump of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219299514U true CN219299514U (en) | 2023-07-04 |
Family
ID=86958170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223594440.3U Active CN219299514U (en) | 2022-12-31 | 2022-12-31 | Vacuum pump of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219299514U (en) |
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2022
- 2022-12-31 CN CN202223594440.3U patent/CN219299514U/en active Active
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