CN213980989U - Valve chamber cover structure avoiding lubricating oil impact - Google Patents
Valve chamber cover structure avoiding lubricating oil impact Download PDFInfo
- Publication number
- CN213980989U CN213980989U CN202022467098.5U CN202022467098U CN213980989U CN 213980989 U CN213980989 U CN 213980989U CN 202022467098 U CN202022467098 U CN 202022467098U CN 213980989 U CN213980989 U CN 213980989U
- Authority
- CN
- China
- Prior art keywords
- oil
- valve chamber
- engine
- chamber cover
- drainage groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a valve chamber cover structure avoiding lubricating oil impact, which comprises a valve chamber cover covering the upper end of an engine cylinder cover, wherein the rear end face of the valve chamber cover is provided with an engine oil return port connected with an engine oil outlet of a vacuum pump, and engine oil at the engine oil outlet enters the inner cavity of the valve chamber cover; an oil drainage groove is formed in the inner edge of the bottom surface of the valve chamber cover cap matched with an engine cylinder cover, the oil drainage groove is close to an engine oil outlet of the vacuum pump and extends along the direction of the engine oil outlet, the inner cavity of the oil drainage groove is an arc surface, and the inner side of the arc surface faces the inner cavity of the valve chamber cover cap; a baffle is arranged on an engine oil outlet of the vacuum pump; the oil drainage groove is located on the side of the blocking piece, and the length direction of the oil drainage groove is perpendicular to the blocking surface of the blocking piece. The utility model discloses the valve chamber shroud has adopted the draining groove, can avoid the direct impact rubber coating of machine oil of vacuum pump oil return, increases the life-span of rubber coating, prevents to leak machine oil.
Description
Technical Field
The utility model relates to an engine manufacturing technical field specifically is a valve door chamber shroud structure of avoiding lubricating oil to strike.
Background
The vacuum pump is used as a power source of braking assistance and steering assistance of the whole vehicle, the vacuum pump is connected with an engine cylinder cover, a driving shaft of the vacuum pump is driven to rotate through a cam shaft of the engine, and therefore the vacuum pump operates to generate vacuum pressure difference. The lubrication of the vacuum pump needs to be carried out by taking oil from an engine oil way, the existing vacuum pump lubrication oil way is usually connected through a rubber pipe, the cost is high, and the rubber pipe is easy to age, so that the lubrication effect is influenced. In order to enhance the lubricating effect and make the engine more compact, the oil inlet and the oil outlet of the vacuum pump can be directly butted with the oil outlet and the oil return port in the internal oil path of the cylinder cover or the valve chamber cover.
In the design of the existing valve chamber cover cap, an engine uses a valve chamber cover cap to a cylinder cap, the valve chamber cover cap and the cylinder cap are sealed by using glue, an engine oil outlet of a vacuum pump connected with an engine oil return port of the valve chamber cover cap just faces to a glue coating layer, the impact force of oil outlet of the vacuum pump cannot be buffered when the vacuum pump returns oil from the engine oil and the oil outlet is out, and the glue coating layer between the valve chamber cover cap and the cylinder cap is easy to damage. The transmission shaft of the vacuum pump is in direct proportion to the rotating speed of the engine, the higher the rotating speed of the engine is, the larger the oil return flow is, the higher the engine oil flow speed is, the larger the destructive power to the glue coating layer is, and the more easily the hidden danger of oil leakage is caused.
SUMMERY OF THE UTILITY MODEL
To the current defect of the aforesaid, the utility model aims to provide a keep away valve chamber shroud structure of lubricating oil impact, valve chamber shroud have adopted the draining groove, can keep away the machine oil direct impact rubber coating of vacuum pump oil return, increase the life-span of rubber coating, prevent to leak machine oil.
The technical scheme of the utility model as follows:
a valve chamber cover structure avoiding lubricating oil impact comprises a valve chamber cover covering the upper end of an engine cylinder cover, wherein an engine oil return opening connected with an engine oil outlet of a vacuum pump is formed in the rear end face of the valve chamber cover; an oil drainage groove is formed in the inner edge of the bottom surface of the valve chamber cover cap matched with an engine cylinder cover, the oil drainage groove is close to an engine oil return port and extends along the direction of an engine oil outlet, the inner cavity of the oil drainage groove is an arc surface, and the inner side of the arc surface faces the inner cavity of the valve chamber cover cap; a baffle is arranged on the engine oil outlet; the oil drainage groove is located on the side of the blocking piece, and the length direction of the oil drainage groove is perpendicular to the blocking surface of the blocking piece.
Specifically, one side of the baffle plate facing the oil outlet is configured to be a plane.
Specifically, one end of the oil drainage groove extends towards the direction of the oil return opening and at least partially surrounds the outer side face of the oil outlet.
Specifically, the cross section of the inner cavity of the oil drainage groove is formed into 1/4 circular arc surfaces.
Specifically, the oil drainage groove and the engine oil outlet are coaxially arranged.
The utility model has the advantages that:
1. the utility model discloses a valve chamber shroud has the structure in draining groove, and the machine oil return opening is close to draining groove, begins the operation when the engine, and the machine oil of the vacuum pump of flowing through comes out from the separation blade position to turn left right both sides and flow away, and along with the rotational speed of engine is higher, and the machine oil velocity of flow is big more, and the impact force is stronger more. The utility model discloses opened the draining groove on the valve chamber cover, draining groove has the arc surface. When the engine oil comes out of the blocking piece of the straight air pump, the engine oil impacts the arc surface of the oil drainage groove, and the impact force of the engine oil is buffered through the flow guide of the arc surface, so that the acting force of the engine oil on the rubber coating layer is weakened, the service life of the rubber coating layer is effectively prolonged, and the engine oil is prevented from leaking to the outside of the engine;
2. the utility model discloses an oil drainage groove simple structure, easy to process has popularization prospect.
Drawings
Fig. 1 is a schematic view of a valve chamber cover structure for avoiding the impact of lubricating oil according to embodiment 1 of the present invention.
Fig. 2 is a schematic view of a valve chamber cover structure avoiding the impact of lubricating oil according to embodiment 2 of the present invention.
Fig. 3 is a schematic view of the valve chamber cover oil drainage groove of the present invention.
In the figure, 1-cylinder cover, 2-valve chamber cover, 3-vacuum pump, 4-engine oil outlet, 5-engine oil return port, 6-oil drainage groove, 7-baffle plate, 8-glue coating.
Detailed Description
In order to explain the technical content, the achieved objects and the effects of the present invention in detail, the following description is made in conjunction with the embodiments and the accompanying drawings. In the description of the embodiments, it is to be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for convenience of describing the embodiments and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation and thus should not be construed as limiting the present invention.
Example 1
According to the specific embodiment of the scheme, the valve chamber cover structure capable of avoiding lubricating oil impact comprises a valve chamber cover 2 covering the upper end of an engine cylinder cover 1, wherein an engine oil return opening 5 connected with an engine oil outlet 4 of a vacuum pump 3 is formed in the rear end face of the valve chamber cover 2, and the engine oil outlet 4 extends into the engine oil return opening 5 and enters the inner cavity of the valve chamber cover 2; an oil drainage groove 6 is formed in the inner edge of the bottom surface of the valve chamber cover 2 matched with the engine cylinder cover 1, the oil drainage groove 6 is close to an engine oil return opening 5 and extends along the direction of an engine oil outlet 4, the inner cavity of the oil drainage groove 6 is an arc surface, and the inner side of the arc surface faces the inner cavity of the valve chamber cover 2; a baffle 7 is arranged on the engine oil return opening 5; the oil drainage groove 6 is located on the side of the blocking piece 7, and the length direction of the oil drainage groove 6 is perpendicular to the blocking surface of the blocking piece 7.
When the engine runs, the engine oil pump of the engine conveys engine oil into the main oil gallery to lubricate each part of the engine, and then conveys the engine oil into the cylinder cover 1, and meanwhile, the engine oil enters the vacuum pump 3 through the oil inlet; after lubrication, the engine oil flows into the engine oil return opening 5 of the valve chamber cover 2 from the engine oil outlet 4, enters the inner cavity, and finally returns to the oil pan. The utility model discloses a valve chamber shroud 2 is through setting up draining groove 6 structure, and the machine oil-out 4 of vacuum pump 3 is close to draining groove 6, as shown in figure 1, begins the operation when the engine, and the machine oil of vacuum pump 3 of flowing through comes out from separation blade 7 position to turn left and right both sides and flow away, and along with the rotational speed of engine is higher, the machine oil velocity of flow is big more, and the impact force is stronger. The oil drainage groove 7 is positioned on one side of the baffle 7, when oil comes out of the baffle 7 of the vacuum pump 3, the oil is guided into the oil drainage groove 6, the oil drainage groove 6 is provided with an arc surface and impacts the arc surface of the oil drainage groove 6, and the impact force of the oil is buffered through the guide of the arc surface, so that the acting force of the oil on the rubber coating layer 8 is weakened, the service life of the rubber coating layer 8 is effectively prolonged, and the oil is prevented from leaking to the outside of the engine; the purpose of the utility model is achieved; in addition the utility model discloses an draining groove simple structure, easy processing has therefore the popularization prospect.
Example 2
As shown in fig. 2, in addition to embodiment 1, one end of the oil drain groove 6 in this embodiment extends toward the oil return opening 5 to partially surround the outer side surface of the oil outlet 4. When the engine starts to operate, engine oil flowing through the vacuum pump 3 flows out of the position of the blocking piece 7 and flows away towards the left side and the right side, the engine oil flow rate is higher along with the higher the rotating speed of the engine, the impact force is stronger, a part of the engine oil flows into the engine oil return opening 5 along the blocking piece 7, a part of the engine oil is blocked by the blocking piece 7 and then flows towards the joint surface of the valve chamber cover 2 and the cylinder cover, the rubber coating on the joint surface is washed and flows into the engine oil return opening 5, and the oil drainage groove 6 is prolonged to the periphery of the engine oil outlet 4, so that the impact of the engine oil on the rubber coating 8 at the end part of the engine oil outlet 4 is further reduced.
As a preferable technical solution of the present embodiment, as shown in fig. 1, one side of the blocking piece 7 facing the oil outlet 4 is configured as a plane, and the processing structure is simple, so that the oil can flow to the oil drainage groove 6 on the side surface.
As a preferable technical solution of this embodiment, as shown in fig. 3, a cross section of an inner cavity of the oil drainage groove 6 is formed into an 1/4 arc surface, so as to form an upward flow guiding structure, and the engine oil is further buffered under the action of gravity.
As a preferred technical solution of this embodiment, the oil drainage groove 6 and the engine oil outlet 4 are coaxially arranged, and have the same gap, so that the flow guiding directions of the engine oil are the same in the same gap.
Although the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (5)
1. The utility model provides a valve chamber shroud structure of avoiding lubricating oil to assault, closes valve chamber shroud (2) in engine cylinder head (1) upper end including the lid, its characterized in that:
the rear end face of the valve chamber cover (2) is provided with an engine oil return port (5) connected with an engine oil outlet (4) of the vacuum pump (3);
an oil drainage groove (6) is formed in the inner edge of the bottom surface of the valve chamber cover (2) matched with an engine cylinder cover (1), the oil drainage groove (6) is close to an engine oil return opening (5) and extends along the direction of an engine oil outlet (4), the inner cavity of the oil drainage groove (6) is an arc surface, and the inner side of the arc surface faces the inner cavity of the valve chamber cover (2);
a baffle plate (7) is arranged on the engine oil outlet (4); the oil drainage groove (6) is located on the side of the blocking piece (7), and the length direction of the oil drainage groove (6) is perpendicular to the blocking surface of the blocking piece (7).
2. A valve chamber cover structure that avoids the impact of lubricating oil according to claim 1, wherein: the side of the baffle plate (7) facing the oil outlet (4) is configured to be a plane.
3. A valve chamber cover structure that avoids the impact of lubricating oil according to claim 1 or 2, wherein: one end of the oil drainage groove (6) extends to the outer side surface of the engine oil outlet (4) at least partially surrounded along the direction of the engine oil return opening (5).
4. A valve chamber cover structure that avoids the impact of lubricating oil according to claim 1, wherein: the cross section of the inner cavity of the oil drainage groove (6) is formed into 1/4 circular arc surfaces.
5. A valve chamber cover structure that avoids the impact of lubricating oil according to claim 4, wherein: the oil drainage groove (6) and the engine oil outlet (4) are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022467098.5U CN213980989U (en) | 2020-10-30 | 2020-10-30 | Valve chamber cover structure avoiding lubricating oil impact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022467098.5U CN213980989U (en) | 2020-10-30 | 2020-10-30 | Valve chamber cover structure avoiding lubricating oil impact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213980989U true CN213980989U (en) | 2021-08-17 |
Family
ID=77259676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022467098.5U Active CN213980989U (en) | 2020-10-30 | 2020-10-30 | Valve chamber cover structure avoiding lubricating oil impact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213980989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502849A (en) * | 2020-10-30 | 2021-03-16 | 广西玉柴机器股份有限公司 | Valve chamber cover structure avoiding lubricating oil impact |
-
2020
- 2020-10-30 CN CN202022467098.5U patent/CN213980989U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502849A (en) * | 2020-10-30 | 2021-03-16 | 广西玉柴机器股份有限公司 | Valve chamber cover structure avoiding lubricating oil impact |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213980989U (en) | Valve chamber cover structure avoiding lubricating oil impact | |
| CN104410182B (en) | Electric pump | |
| CN100378378C (en) | End sealing device for compressor of turbosupercharger | |
| CN108799122A (en) | A kind of novel electron vacuum pump applied to automobile | |
| CN106764372A (en) | A kind of aero-engine fuel pump structure | |
| CN112502849A (en) | Valve chamber cover structure avoiding lubricating oil impact | |
| CN210041512U (en) | Motor casing of roots vacuum pump | |
| CN202646157U (en) | Improved water pump | |
| US20100294216A1 (en) | Water pump having a reservoir | |
| KR101796437B1 (en) | Centrifugal pump with blocking function of liquid leakage | |
| CN106194736A (en) | Oil rotary vacuum pump | |
| CN210106164U (en) | Automobile rotary vane type vacuum power-assisted electric vacuum pump | |
| CN211852177U (en) | Electric vacuum pump diversion system for pump | |
| CN209638097U (en) | A kind of water pump of the motorcycle with self-lubricating and sluicing function | |
| CN215595739U (en) | Cylinder cover structure | |
| CN206071663U (en) | A kind of engine timing chain engineer room cover lid | |
| CN110131211A (en) | A kind of centrifugal pump body and centrifugal pump | |
| CN108506211B (en) | Automobile brake rotary vane vacuum pump | |
| JP3937077B2 (en) | Lubrication structure of bearing chamber | |
| CN111412142A (en) | Pump chamber mechanism of electronic vacuum pump and electronic vacuum pump with noise reduction function in pump chamber | |
| CN210317699U (en) | Pneumatic motor for professional-grade diaphragm pump | |
| CN211874723U (en) | High-pressure cavity self-sealing and lubricating gear pump | |
| CN221033290U (en) | Pump shell of end face small-clearance vortex pump | |
| CN210135261U (en) | Speed control protection electromagnetic valve for marine diesel engine | |
| CN210265948U (en) | Electromagnetic valve body for speed control protection of marine diesel engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |