CN211174374U - Cylinder head cover drainage structure - Google Patents
Cylinder head cover drainage structure Download PDFInfo
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- CN211174374U CN211174374U CN201921753970.3U CN201921753970U CN211174374U CN 211174374 U CN211174374 U CN 211174374U CN 201921753970 U CN201921753970 U CN 201921753970U CN 211174374 U CN211174374 U CN 211174374U
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- cylinder head
- water outlet
- head cover
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Abstract
The utility model relates to the field of engine parts, in particular to a cylinder head cover drainage structure, which comprises a water inlet channel which is arranged below a depressed part of a cylinder head cover and is communicated with the depressed part, and a water outlet channel which is arranged in a cylinder head; the water outlet channel is communicated with the water inlet channel, the height of a water inlet of the water inlet channel is smaller than the bottom of the concave part, and a water outlet of the water outlet channel is arranged on the side wall of the cylinder cover. The utility model provides a cylinder head cover side be difficult to the problem of design drainage structure, adopt from the drainage mode of cylinder head cover bottom via the cylinder head terminal surface, simple structure, the processing cost is low.
Description
Technical Field
The utility model relates to an engine parts field specifically is a cylinder head cover drainage structures.
Background
In diesel engine design development, cylinder head cover design structure is complicated, need design into the depressed part at some intermediate position, and in the engine cleaning process, the depressed part exists ponding easily, and ponding is difficult clean up, and long-time ponding can cause spare part to corrode, also causes the cylinder head cover to become invalid easily.
In order to solve the above problems, chinese patent CN206309488U proposes a drainage type cylinder head cover, which includes a cylinder head cover body, wherein the middle of the top of the cylinder head cover body protrudes inwards to form a concave part, and the side wall of the concave part is provided with a water outlet for draining accumulated water; the labyrinth cover plate is arranged between the lower concave part and the side wall of the cylinder head cover in a sealing manner, so that a labyrinth passage for oil-gas separation is formed in the cylinder head cover body; the water outlet is positioned at the rear end of the cylinder cover along the length direction of the cylinder cover; the water outlet is arranged at the rear end of the lower concave part along the length direction, and the accumulated water at the top of the lower concave part is directly discharged along the length direction of the cylinder head cover body.
Also, as disclosed in CN202081998U, the bottom of the cylinder head cover of an automobile engine is provided with a drainage groove, and further, a water retaining ring-shaped boss is disposed around the bolt hole, so that the cylinder head can meet the requirement of natural drainage without affecting the internal structure, mounting structure and usability of the cylinder head cover
Both of the two structures set up drainage structures on the side face of the cylinder head cover body, although the problem of water accumulation of the cylinder head cover of the engine can be solved, the water accumulation on the top of the cylinder head cover can be effectively discharged, certain problems still exist, the structure of the cylinder head cover is more compact under the requirement of engine light weight, the water outlet structure is designed on the side portion of the cylinder head cover and is difficult to realize, the arrangement space is insufficient, the structural design is more complex, and particularly in a small-sized engine, the water outlet structure for designing the side wall of the cylinder head cover is difficult to realize.
SUMMERY OF THE UTILITY MODEL
The utility model provides a cylinder head cover drainage structures has solved the problem that the cylinder head cover side is difficult to design drainage structures, adopts the drainage mode via the cylinder head terminal surface from the cylinder head cover bottom, simple structure, and the processing cost is low.
The technical scheme of the utility model as follows:
in a compact cylinder head cover body, a ponding drainage structure is difficult to design on the side wall of the cylinder head cover body, and the cylinder head cover drainage structure comprises a water inlet channel and a water outlet channel, wherein the water inlet channel is arranged below a concave part of the cylinder head cover body in a penetrating manner and is communicated with the concave part; the water outlet channel is communicated with the water inlet channel, the height of a water inlet of the water inlet channel is smaller than that of the bottom of the concave part, accumulated water is conveniently and completely discharged, and a water outlet of the water outlet channel is formed in the side wall of the cylinder cover. When rainy day, carwash or engine wash, often can store up a large amount of water on the engine cylinder head cover body and can not discharge, the utility model discloses general the ponding of cylinder head cover body is followed the via of the depressed part of cylinder head cover body the water inlet, by last to down, through the inlet channel flows through outlet channel on the cylinder head is discharged from the delivery port on the cylinder head lateral wall, drainage structure overcome cylinder head cover body sunk structure's drainage limitation, cancelled cylinder head cover body lateral wall design drainage structure's scheme, has solved the ponding discharge problem of compact cylinder head cover body, simple structure, the inlet channel with outlet channel adopts drilling mode to process, and processing method is simple, and is with low costs.
The water inlet channel is arranged at one end of the cylinder head cover body close to the water outlet, the water inlet channel is close to the water outlet, the length of a drainage channel is reduced, the drainage resistance is reduced, and the drainage efficiency is high; in addition, when the accumulated water on the upper part of the engine is conveniently discharged, one end of the engine is lifted, the accumulated water is gathered near the drainage structure, and the drainage efficiency is improved.
Preferably, the water outlet is formed in the end face of the cylinder cover, accumulated water is prevented from being discharged to the air inlet side and the air exhaust side of the engine, and the influence of accumulated water discharge on key air inlet and exhaust component parts of the engine is reduced.
Preferably, the water outlet channel is communicated with each other and comprises a horizontal water outlet channel and a vertical water outlet channel, the vertical water outlet channel is coaxial with the water inlet channel, the water outlet channel is conveniently machined from the side wall, the water inlet channel is conveniently machined from the top of the cylinder head cover body, and the machining cost is reduced.
Preferably, the vertical water outlet channel and the water inlet channel have the same inner diameter, the vertical water outlet channel and the water inlet channel can be machined by one drill, and the water inlet channel and the water outlet channel can be machined by drilling twice, so that the machining procedures are reduced, and the cost is reduced.
The beneficial effects of the utility model are that:
1. the water drainage mode from the bottom of the cylinder head cover body through the end face of the cylinder cover is adopted, water is drained from top to bottom, the structure is simple, and the problem of accumulated water drainage of the compact cylinder head cover body is solved.
2. The drainage channel is short, accumulated water is prevented from being drained to the air inlet side and the air exhaust side of the engine, and the influence of accumulated water drainage on key parts of the engine is reduced.
3. The water inlet channel and the water outlet channel can be processed by drilling twice, the processing procedure is simple, and the cost is reduced.
Drawings
Fig. 1 is a schematic perspective view of a cylinder head cover drainage structure according to the present invention.
Fig. 2 is a schematic top view of the structure of fig. 1.
Fig. 3 is a sectional view taken along line a-a of fig. 2.
Fig. 4 is a schematic view of the mounting structure of a cylinder head cover drainage structure according to the present invention.
In the figure: 100-a cylinder head cover body, 110-a concave part, 120-a water inlet channel, 121-a water inlet, 200-a cylinder cover, 210-a water outlet channel, 211-a horizontal water outlet channel, 212-a vertical water outlet channel and 220-a water outlet.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings, and the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1 to 3, a cylinder head cover drain structure includes a water inlet passage 120 penetrating below a recess 110 of a cylinder head cover body 100 and communicating with the recess 110, a water outlet passage 210 provided in a cylinder head 200; the water outlet channel 210 is communicated with the water inlet channel 120, the height of the water inlet 121 of the water inlet channel 120 is smaller than the bottom of the recess 110, and the water outlet 220 of the water outlet channel 210 is arranged on the side wall of the cylinder head 200.
The accumulated water discharge principle of the implementation is as follows: in this embodiment, accumulated water flows from the recess 110 of the cylinder head cover body 100 through the water inlet 121, from top to bottom, through the water inlet channel 120, flows through the water outlet channel 210 on the cylinder head 200, and is discharged from the water outlet 220 on the side wall of the cylinder head 200, so as to form a drainage route, and thus, the accumulated water is discharged.
Example 2:
as shown in fig. 1 to 4, a cylinder head cover drain structure includes two parts: one part is a cylinder head cover body 100, the other part is a cylinder head 200, in particular to a water inlet channel 120 which is arranged below a concave part 110 of the cylinder head cover body 100 in a penetrating way and is communicated with the concave part 110, and a water outlet channel 210 which is arranged in the cylinder head 200; the water outlet channel 210 is communicated with the water inlet channel 120, the height of the water inlet 121 of the water inlet channel 120 is smaller than the bottom of the concave part 110, the water outlet 220 of the water outlet channel 210 is arranged on the side wall of the cylinder head 200, and the cylinder head cover body 100 and the cylinder head 200 are sealed by rubber rings.
As shown in fig. 2, the water inlet channel 120 is disposed at one end of the cylinder head cover body 100 close to the water outlet 220, the water inlet channel 120 and the water outlet 220 are disposed adjacent to each other, and the length of the drain channel is the shortest.
As shown in fig. 4, the water outlet 220 is provided on a front end surface of the cylinder head 200.
As shown in fig. 3, the water outlet channel 210 includes a horizontal water outlet channel 211 and a vertical water outlet channel 212 which are communicated with each other, the vertical water outlet channel 212 is coaxial with the water inlet channel 120, the vertical water outlet channel 212 and the water inlet channel 120 have the same inner diameter, the inner diameters of the two are both 3-5 mm, and the water inlet channel 120 and the water outlet channel 210 can be processed by drilling twice.
The accumulated water discharge process of the implementation is as follows: in this embodiment, accumulated water flows from the recess 110 of the cylinder head cover body 100 through the water inlet 121, from top to bottom, sequentially through the water inlet channel 120, the vertical water outlet channel 212 and the horizontal water outlet channel 211, and is discharged from the water outlet 220 on the front end surface of the cylinder head 200, so as to form a drainage route, and thus, the accumulated water is discharged. In order to accelerate the drainage speed, the engine or the vehicle can be lifted, one end of the water outlet 220 of the engine is lifted, accumulated water is gathered near the drainage structure, and the drainage efficiency is improved.
Example 3:
the difference between this embodiment and the above embodiment 2 is that the water outlet channel 210 is a straight channel, and the straight channel is obliquely crossed with the horizontal plane to communicate the water outlet 220 with the water inlet channel 120. The water outlet channel 210 can be processed by drilling once, so that the processing cost is lower.
Claims (5)
1. A cylinder head cover drainage structures which characterized in that: the water inlet channel (120) penetrates through the lower part of a concave part (110) of a cylinder head cover body (100) and is communicated with the concave part (110), and the water outlet channel (210) is arranged in a cylinder head (200); the water outlet channel (210) is communicated with the water inlet channel (120), the height of a water inlet (121) of the water inlet channel (120) is smaller than the bottom of the concave part (110), and a water outlet (220) of the water outlet channel (210) is arranged on the side wall of the cylinder cover (200).
2. A cylinder head cover drain structure according to claim 1, wherein: the water inlet channel (120) is disposed at one end of the cylinder head cover body (100) near the water outlet (220).
3. A cylinder head cover drain structure according to claim 1 or 2, characterized in that: the water outlet (220) is arranged on the end surface of the cylinder cover (200).
4. A cylinder head cover drain structure according to claim 1 or 2, characterized in that: the water outlet channel (210) is communicated with each other and comprises a horizontal water outlet channel (211) and a vertical water outlet channel (212), and the vertical water outlet channel (212) is coaxial with the water inlet channel (120).
5. A cylinder head cover drain structure according to claim 4, wherein: the vertical water outlet channel (212) and the water inlet channel (120) have the same inner diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921753970.3U CN211174374U (en) | 2019-10-18 | 2019-10-18 | Cylinder head cover drainage structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921753970.3U CN211174374U (en) | 2019-10-18 | 2019-10-18 | Cylinder head cover drainage structure |
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| CN211174374U true CN211174374U (en) | 2020-08-04 |
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| CN201921753970.3U Active CN211174374U (en) | 2019-10-18 | 2019-10-18 | Cylinder head cover drainage structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725754A (en) * | 2019-10-18 | 2020-01-24 | 广西玉柴机器股份有限公司 | Cylinder head cover drainage structure |
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- 2019-10-18 CN CN201921753970.3U patent/CN211174374U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725754A (en) * | 2019-10-18 | 2020-01-24 | 广西玉柴机器股份有限公司 | Cylinder head cover drainage structure |
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