CN112523891B - Engine cylinder head cover - Google Patents
Engine cylinder head cover Download PDFInfo
- Publication number
- CN112523891B CN112523891B CN202011481253.7A CN202011481253A CN112523891B CN 112523891 B CN112523891 B CN 112523891B CN 202011481253 A CN202011481253 A CN 202011481253A CN 112523891 B CN112523891 B CN 112523891B
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- CN
- China
- Prior art keywords
- cylinder head
- head cover
- engine
- air inlet
- air outlet
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
- F02F7/0068—Adaptations for other accessories
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0472—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil using heating means
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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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
本发明公开了一种发动机气缸盖罩，包括：气缸盖罩本体、进气口以及出气口。气缸盖罩本体具有中空腔体。进气口开设于气缸盖罩本体的一端，且进气口的一端与发动机的排气管相连接。以及出气口开设于气缸盖罩本体的另一端，且出气口的一端与发动机的排气管相连接。其中，进气口的另一端与中空腔体相连通，且出气口的另一端与中空腔体相连通。借此，本发明的发动机气缸盖罩，结构简单合理，可以使发动机排气流经并加热气缸盖罩，从而保证了发动机的正常运行。
The present invention discloses an engine cylinder head cover, comprising: a cylinder head cover body, an air inlet and an air outlet. The cylinder head cover body has a hollow cavity. The air inlet is opened at one end of the cylinder head cover body, and one end of the air inlet is connected to the exhaust pipe of the engine. And the air outlet is opened at the other end of the cylinder head cover body, and one end of the air outlet is connected to the exhaust pipe of the engine. Among them, the other end of the air inlet is connected to the hollow cavity, and the other end of the air outlet is connected to the hollow cavity. Thereby, the engine cylinder head cover of the present invention has a simple and reasonable structure, and can make the engine exhaust flow through and heat the cylinder head cover, thereby ensuring the normal operation of the engine.
Description
Technical Field
The invention relates to the technical field of engines, in particular to an engine cylinder head cover.
Background
The cylinder head cover of the engine is positioned at the top of the engine and mainly plays a role in preventing external impurities from entering the engine and sealing. The interior of the cylinder head cover is provided with parts such as an engine rocker arm, an air valve, a cam shaft and the like, and a lot of engine oil particles and oil mist can be generated during high-speed operation and splash to the cylinder head cover.
When the engine burns, part of gas leaks out of the combustion chamber and finally is discharged out of the engine through the oil pan, the cylinder head cover and the respirator, and at present, new emission regulations require crankcase ventilation to be connected with engine air inlet, so that emission pollutants are avoided. The exhaust gas produced by the combustion of the engine contains a small amount of water vapor, and if the fuel is natural gas or the like, more water vapor is produced. In cold weather, this water vapor may condense on top of the lower temperature cylinder head cover. And the engine oil particles and oil mist generated by the engine are contacted and mixed with the condensed water to form an engine oil emulsion. The emulsified engine oil enters the oil-gas separator, the supercharger and the intercooler along with the crankcase ventilation system. When the emulsified engine oil is more, the crankcase ventilation system is easy to be blocked, so that the crankcase pressure of the engine is high, oil leaks, meanwhile, the supercharger, the intercooler and the like can be polluted by the engine oil emulsion, and the normal operation of the engine is influenced.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide an engine cylinder head cover, which has a simple and reasonable structure, and can enable engine exhaust to flow through and heat the cylinder head cover, so that the normal operation of an engine is ensured.
In order to achieve the aim, the invention provides an engine cylinder head cover, which comprises a cylinder head cover body, an air inlet and an air outlet. The cylinder head cover body is provided with a hollow cavity. The air inlet is arranged at one end of the cylinder head cover body, and one end of the air inlet is connected with an exhaust pipe of the engine. And the air outlet is formed in the other end of the cylinder head cover body, and one end of the air outlet is connected with an exhaust pipe of the engine. The other end of the air inlet is communicated with the hollow cavity, and the other end of the air outlet is communicated with the hollow cavity.
In an embodiment of the invention, the engine cylinder head cover further comprises an ambient temperature sensor electrically connected with the ECU, and the ambient temperature sensor is used for detecting the ambient temperature in real time.
In one embodiment of the present invention, the air inlet is provided with a first valve, and the first valve is electrically connected with the ECU.
In an embodiment of the invention, the air outlet is provided with a second valve, and the second valve is electrically connected with the ECU.
In one embodiment of the present invention, when the ambient temperature is lower than a first preset value, the ECU controls the opening of the air inlet and the air outlet to allow the hot air in the exhaust pipe of the engine to pass through the hollow cavity, thereby heating the cylinder head cover body.
In one embodiment of the present invention, the ECU controls the air inlet and the air outlet to be closed when the ambient temperature is higher than a second preset value.
Compared with the prior art, the engine cylinder head cover has a simple and reasonable structure, and can enable the exhaust gas of the engine to flow through and heat the cylinder head cover, so that the normal operation of the engine is ensured.
Drawings
FIG. 1 is a schematic top view of an engine cylinder head cover according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the structure at A-A in FIG. 1;
Fig. 3 is a schematic view of an engine cylinder head cover according to an embodiment of the present invention mounted on an engine.
The main reference numerals illustrate:
1-a cylinder head cover body, 11-a hollow cavity, 2-an air inlet, 3-an air outlet, 4-an engine and 5-an exhaust pipe.
Detailed Description
The following detailed description of embodiments of the invention is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.
Fig. 1 is a schematic top view of an engine cylinder head cover according to an embodiment of the present invention. Fig. 2 is a schematic cross-sectional view of the structure at A-A in fig. 1. Fig. 3 is a schematic view of an engine cylinder head cover according to an embodiment of the present invention mounted on an engine.
As shown in fig. 1 to 3, an engine cylinder head cover according to a preferred embodiment of the present invention includes a cylinder head cover body 1, an intake port 2, and an exhaust port 3. The cylinder head cover body 1 has a hollow chamber 11. The intake port 2 is opened at one end of the cylinder head cover body 1, and one end of the intake port 2 is connected with an exhaust pipe 5 of the engine 4. And the air outlet 3 is arranged at the other end of the cylinder head cover body 1, and one end of the air outlet 3 is connected with an exhaust pipe 5 of the engine 4. Wherein the other end of the air inlet 2 is communicated with the hollow cavity 11, and the other end of the air outlet 3 is communicated with the hollow cavity 11.
In an embodiment of the invention, the engine cylinder head cover further comprises an ambient temperature sensor electrically connected with the ECU, and the ambient temperature sensor is used for detecting the ambient temperature in real time. The air inlet 2 is provided with a first valve, and the first valve is electrically connected with the ECU.
In one embodiment of the present invention, the air outlet 3 is provided with a second valve, and the second valve is electrically connected with the ECU. When the ambient temperature is lower than a first preset value, the ECU controls the opening of the air inlet 2 and the air outlet 3, so that hot air in the exhaust pipe 5 of the engine 4 passes through the hollow cavity 11, and the cylinder head cover body 1 is heated. When the ambient temperature is higher than the second preset value, the ECU controls the air inlet 2 and the air outlet 3 to be closed.
In practical application, the engine cylinder head cover of the invention avoids a hollow cavity 11 structure (namely, a hollow cavity 11 is arranged at the periphery and the top of the cylinder head cover body 1), the cylinder head cover body 1 is provided with an air inlet 2 and an air outlet 3, the air inlet 2 and the air outlet 3 are communicated with the hollow cavity 11, and in order to ensure uniform air flow, all parts can be heated, and air flow passages with different directions can be arranged in the cavity. When the engine 4 is running, hot gas of the exhaust pipe 5 of the engine 4 enters the hollow cavity 11 in the cylinder head cover wall surface from the air inlet 2 of the cylinder head cover body 1, and flows out from the air outlet 3 into the downstream exhaust pipe 5. In detail, the air inlet and outlet 3 is arranged at a proper position (according to the trend of the air inlet and outlet of the engine) and is communicated with the hollow cavity 11 (the size of the air inlet and outlet 3 is set according to the model of the engine, the actual temperature of the cylinder head cover, the margin of the air outlet flow, etc.), and the air inlet or outlet 3 can be provided with a valve which judges whether to execute opening or closing or not through the ECU according to the data detected by the ambient temperature sensor. When the ambient temperature is low, the cylinder head cover air inlet valve is opened, hot air of the engine exhaust pipe 5 enters the cylinder head cover wall cavity from the cylinder head cover air inlet 2, flows out from the air outlet 3 and enters the downstream exhaust pipe 5, and at the moment, the cylinder head cover can be heated by exhaust gas. The vapor generated by the combustion of the engine 4 is not condensed when encountering the hot cylinder head cover, but directly enters the crankcase ventilation system, so that the vapor is prevented from generating condensed water and emulsified engine oil on the inner wall of the cylinder head cover. When the ambient temperature is high, the valve is closed and engine exhaust does not pass through the cylinder head cover.
In a word, the engine cylinder head cover has a simple and reasonable structure, and the hollow cavity 11 is arranged on the periphery and the top wall surface of the cylinder head cover body 1, so that engine exhaust gas can flow through and heat the cylinder head cover. The air inlet 2 and the air outlet 3 of the cylinder head cover body 1 are provided with valves controlled by an ambient temperature sensor and an ECU (electronic control unit) to realize whether the cylinder head cover is heated or not, and engine exhaust can flow through and heat the cylinder head cover, so that the normal operation of the engine is ensured.
The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (1)
1. An engine cylinder head cover, comprising:
The cylinder head cover body is provided with a hollow cavity;
an air inlet arranged at one end of the cylinder head cover body and one end of which is connected with an exhaust pipe of the engine, and
The air outlet is formed in the other end of the cylinder head cover body, and one end of the air outlet is connected with an exhaust pipe of the engine;
the other end of the air inlet is communicated with the hollow cavity, and the other end of the air outlet is communicated with the hollow cavity;
The engine cylinder head cover further comprises an ambient temperature sensor which is electrically connected with the ECU and used for detecting ambient temperature in real time;
the air inlet is provided with a first valve, and the first valve is electrically connected with the ECU;
the air outlet is provided with a second valve, and the second valve is electrically connected with the ECU;
When the ambient temperature is lower than a first preset value, the ECU controls the air inlet and the air outlet to be opened, so that hot air in the exhaust pipe of the engine passes through the hollow cavity, and the cylinder head cover body is heated;
and when the ambient temperature is higher than a second preset value, the ECU controls the air inlet and the air outlet to be closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011481253.7A CN112523891B (en) | 2020-12-15 | 2020-12-15 | Engine cylinder head cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011481253.7A CN112523891B (en) | 2020-12-15 | 2020-12-15 | Engine cylinder head cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112523891A CN112523891A (en) | 2021-03-19 |
| CN112523891B true CN112523891B (en) | 2025-03-04 |
Family
ID=75000378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011481253.7A Active CN112523891B (en) | 2020-12-15 | 2020-12-15 | Engine cylinder head cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112523891B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007278237A (en) * | 2006-04-11 | 2007-10-25 | Honda Motor Co Ltd | Blowby gas dew condensation preventing device |
| CN213743719U (en) * | 2020-12-15 | 2021-07-20 | 广西玉柴机器股份有限公司 | Engine cylinder head cover |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004012160A1 (en) * | 2004-03-12 | 2005-09-29 | Adam Opel Ag | Crankcase ventilation arrangement involves crankcase, cylinder head, cylinder head cover, all for an automotive vehicle, with cylinder head cover housing with at least one inner space |
-
2020
- 2020-12-15 CN CN202011481253.7A patent/CN112523891B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007278237A (en) * | 2006-04-11 | 2007-10-25 | Honda Motor Co Ltd | Blowby gas dew condensation preventing device |
| CN213743719U (en) * | 2020-12-15 | 2021-07-20 | 广西玉柴机器股份有限公司 | Engine cylinder head cover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112523891A (en) | 2021-03-19 |
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