CN209743061U - Built-in PCV valve cylinder head cover structure - Google Patents
Built-in PCV valve cylinder head cover structure Download PDFInfo
- Publication number
- CN209743061U CN209743061U CN201920240983.4U CN201920240983U CN209743061U CN 209743061 U CN209743061 U CN 209743061U CN 201920240983 U CN201920240983 U CN 201920240983U CN 209743061 U CN209743061 U CN 209743061U
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- pcv valve
- cylinder head
- head cover
- hole
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Abstract
The utility model relates to a built-in PCV valve cylinder head cover structure belongs to the technical field of engine. The utility model discloses a built-in PCV valve cylinder head cover structure, including cylinder head cover and PCV valve, be provided with the fabrication hole in the cylinder head cover, the PCV valve sets up in the fabrication hole, the front end of fabrication hole is provided with the inlet hole that communicates to the crankcase vent, the air inlet of PCV valve communicates to the inlet hole; an exhaust port of the PCV valve is arranged in the process hole, an outlet which is communicated with the process hole and the cylinder cover is arranged on the cylinder cover, and a plug screw is arranged at the front end of the process hole. The utility model discloses a built-in PCV valve cylinder head cover structure, compact structure has avoided the crankcase to ventilate the risk of discharging in the atmosphere moreover, can satisfy the requirement of six regulations in the state.
Description
Technical Field
The utility model relates to a technical field of engine, more specifically say, the utility model relates to a built-in PCV valve cylinder head cover structure.
Background
In the prior art, as shown in the figure, the PCV valve is arranged on a cylinder cover, a pipeline is externally connected, if the pipeline is dropped or damaged, exhaust gas in a crankcase can be discharged into the atmosphere, air is polluted, and meanwhile, the latest national six regulations cannot be passed.
SUMMERY OF THE UTILITY MODEL
For the above-mentioned technical problem who exists among the solution prior art, the utility model aims to provide a built-in PCV valve cylinder head cover structure.
The utility model discloses a built-in PCV valve cylinder head cover structure, including cylinder head cover and PCV valve, its characterized in that: a process hole is formed in the head cover, the PCV valve is arranged in the process hole, the front end of the process hole is provided with an inlet hole communicated to a crankcase ventilation opening, and an air inlet of the PCV valve is communicated to the inlet hole; an exhaust port of the PCV valve is arranged in the process hole, an outlet which is communicated with the process hole and a cylinder cover is arranged on the cylinder cover, and a plug screw is arranged at the front end of the process hole.
And a sealing gasket is arranged between the screw plug and the front end of the technical hole.
Compared with the prior art, the utility model discloses a built-in PCV valve cylinder head cover structure has following beneficial effect:
The utility model discloses a built-in PCV valve cylinder head cover structure, compact structure has avoided the crankcase to ventilate the risk of discharging in the atmosphere moreover, can satisfy the requirement of six regulations in the state.
Drawings
Fig. 1 is a schematic structural diagram of a cylinder head cover of an external PCV valve in the prior art.
Fig. 2 is a schematic structural diagram of the cylinder head cover structure with a built-in PCV valve according to the present invention.
Detailed Description
The structure of the built-in PCV valve cylinder head cover of the present invention will be further described below with reference to specific embodiments to help those skilled in the art to understand the concept and technical solution of the present invention more completely, accurately and deeply.
Example 1
The built-in PCV valve cylinder head cover structure of the embodiment comprises a cylinder head cover 4 and a PCV valve 3, wherein a process hole is arranged in the cylinder head cover 4, the PCV valve 3 is arranged in the process hole, the front end of the process hole is provided with an inlet hole 5 communicated to a crankcase ventilation opening, and an air inlet of the PCV valve 3 is communicated to the inlet hole 5; the exhaust port of the PCV valve 3 is arranged in the process hole, and the cylinder head cover 4 is also provided with an outlet 6 which is communicated with the process hole and the cylinder head. The front end of the fabrication hole is provided with a plug screw 1, and a sealing gasket 2 is arranged between the plug screw 1 and the front end of the fabrication hole for enhancing sealing. In the cylinder head cover structure with the built-in PCV valve, the PCV valve is installed inside the cylinder head cover, blow-by gas in a crankcase is separated by the oil-gas separation chamber and then passes through the PCV valve through the inlet, and then is discharged into the cylinder head through the outlet, and finally enters the cylinder for combustion, so that the risk of ventilation and emission of the crankcase to the atmosphere is avoided, and the requirements of national six regulations can be met.
For those skilled in the art, the specific embodiments are only exemplary descriptions of the present invention, and it is obvious that the present invention is not limited to the above-mentioned embodiments, and various insubstantial modifications can be made without modification to the method concept and technical solution of the present invention, and the present invention is also within the scope of the present invention.
Claims (2)
1. a built-in PCV valve cylinder head cover structure comprises a cylinder head cover and a PCV valve, and is characterized in that: a process hole is formed in the head cover, the PCV valve is arranged in the process hole, the front end of the process hole is provided with an inlet hole communicated to a crankcase ventilation opening, and an air inlet of the PCV valve is communicated to the inlet hole; an exhaust port of the PCV valve is arranged in the process hole, an outlet which is communicated with the process hole and a cylinder cover is arranged on the cylinder cover, and a plug screw is arranged at the front end of the process hole.
2. The built-in PCV valve cylinder head cover structure according to claim 1, wherein: and a sealing gasket is arranged between the screw plug and the front end of the technical hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920240983.4U CN209743061U (en) | 2019-02-26 | 2019-02-26 | Built-in PCV valve cylinder head cover structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920240983.4U CN209743061U (en) | 2019-02-26 | 2019-02-26 | Built-in PCV valve cylinder head cover structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209743061U true CN209743061U (en) | 2019-12-06 |
Family
ID=68708011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920240983.4U Active CN209743061U (en) | 2019-02-26 | 2019-02-26 | Built-in PCV valve cylinder head cover structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209743061U (en) |
-
2019
- 2019-02-26 CN CN201920240983.4U patent/CN209743061U/en active Active
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