CN204877706U - Cylinder cap cover assembly of diesel engine - Google Patents
Cylinder cap cover assembly of diesel engine Download PDFInfo
- Publication number
- CN204877706U CN204877706U CN201520648303.4U CN201520648303U CN204877706U CN 204877706 U CN204877706 U CN 204877706U CN 201520648303 U CN201520648303 U CN 201520648303U CN 204877706 U CN204877706 U CN 204877706U
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- China
- Prior art keywords
- cylinder head
- oil
- head cover
- cover body
- plate
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- 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.)
- Expired - Fee Related
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a cylinder cap cover assembly of diesel engine, including cylinder cap cover body and bolted connection in the bottom plate of cylinder cap cover body, cylinder cap cover body is equipped with the oil -gas separation chamber, the bottom plate seal in the oil -gas separation chamber, just the bottom plate is equipped with the air current and gets into from the crankcase the air inlet in oil -gas separation chamber, the oil -gas separation intracavity is equipped with multiunit along the parallel oil -gas separation board of arranging of the air current flow direction, the oil -gas separation board includes in proper order and parallel orifice plate, profile of tooth board and baffle of arranging, the orifice plate is equipped with a plurality of through -holes, the profile of tooth board with cylinder cap cover body is equipped with first clearance, the baffle with cylinder cap cover body is equipped with the second clearance, first clearance with the second clearance is crisscross to distribute, just cylinder cap cover body is equipped with installs the position with bent axle forced draft valve complex. Adopt this technical scheme, improved oil -gas separation's effect, simultaneously, the degree of integrating of cylinder cap cover assembly is higher.
Description
Technical field
The utility model relates to diesel engine system technical field, is specifically related to a kind of cylinder head cover assembly of diesel engine.
Background technique
For protection valve and driving mechanism thereof, at engine cylinder tops, one housing is housed, is called cylinder head cover.Between cylinder head cover and cylinder cap, rubber sheet gasket is housed, to form the valve cage of sealing, prevents lubricant oil, the waste gas of crankcase leaks.
Waste gas in crankcase enters into (comprising piston gas blowby and machine oil mist of oil) gas handling system of motor by PCV system, and in order to reduce engine oil consumption, usually oil and gas separating system is set in cylinder head cover, machine oil is separated with waste gas, and be back in oil sump.
The cylinder head cover of prior art and the linkage structure of oil and gas separating system are as shown in Figure 1, cylinder head cover 1 ' and oil and gas separating system 2 ' are riveted fixing, chamber, a labyrinth 11 ' is provided with in cylinder head cover 1 ', oil and gas separating system 2 ' comprises base plate 21 ', with three the labyrinth baffle plates 22 ' be welded on base plate 21 ', three labyrinth baffle plates 22 ' are staggered, and the bottom of each labyrinth baffle plate 22 ' arranges draw-in groove 221 ' respectively, draw-in groove 221 ' connects and fixes on the dividing plate in chamber, labyrinth 11 ', and fit with the diapire of cylinder head cover 1 ', when the waste gas in crankcase enters in chamber, labyrinth 11 ' from opening 23 ', due to the obstruction of labyrinth baffle plate 22 ', waste gas can shuttle back and forth along the gap of labyrinth baffle plate 22 ' with chamber, labyrinth 11 ', its path of shuttling back and forth is sigmoid curve, and in the process of shuttling back and forth, waste gas and labyrinth baffle plate 22 ' clash into, machine oil is sticked on labyrinth baffle plate 22 ', then be back in oil sump.
But in above-mentioned oil and gas separating system, labyrinth baffle plate is the platy structure of entity, it is less to gas circulating resistance, causes pressure difference before and after piece-rate system less, causes the flow velocity of oil gas slower, cause the impact force of oil gas and labyrinth baffle plate less, thus cause the effect of Oil-gas Separation poor; Meanwhile, PCV (positive crankcase ventilation (PCV)) valve needs by rubber pipe external with steel pipe of giving vent to anger, and connecting pipeline is more complicated.
Model utility content
The utility model provides a kind of cylinder head cover assembly of diesel engine, can improve the effect of Oil-gas Separation, and improves the integration degree of cylinder head cover.
To achieve these goals, the utility model takes following technological scheme:
A kind of cylinder head cover assembly of diesel engine, comprise cylinder head cover body, the base plate of cylinder head cover body is connected to bolt, described cylinder head cover body is provided with oil-gas separation chamber, described base plate is closed in described oil-gas separation chamber, and described base plate is provided with air-flow enters described oil-gas separation chamber suction port from crankcase, the many groups of oil-gas separating plate along air flow direction parallel arrangement are provided with in described oil-gas separation chamber, described oil-gas separating plate comprises successively and the orifice plate of parallel arrangement, castellated plates and baffle plate, described orifice plate is provided with multiple through hole, described castellated plates and described cylinder head cover body are provided with the first gap, described baffle plate and described cylinder head cover body are provided with the second gap, described first gap and described second gap are interspersed, and described cylinder head cover body is provided with the installation position coordinated with bent axle forced ventilation valve.
Preferably, described orifice plate is square platy structure, one end of described orifice plate and described base plate against, its excess-three end respectively with the inwall of described cylinder head cover body against; Described castellated plates is square platy structure, one end of described castellated plates and the roof of cylinder head cover body against, its opposite end is unsettled and form described first gap, all the other two ends respectively with the sidewall of described cylinder head cover body against; One end of described baffle plate and described base plate against, its opposite end is unsettled and form described second gap, the sidewall of all the other two ends and described cylinder head cover body against.
Preferably, described oil-gas separating plate comprises one group of oil gas crude separation plate, and one group of oil gas essence separating plate; Described orifice plate comprises crude separation orifice plate and smart separation orifice, and described castellated plates comprises crude separation castellated plates and is separated castellated plates with essence, and described baffle plate comprises crude separation baffle plate and smart skimming baffle; Described crude separation orifice plate, described crude separation castellated plates and described crude separation baffle plate are arranged successively and are formed described oil gas crude separation plate; Described smart separation orifice, described essence separation castellated plates and described smart skimming baffle are arranged successively and are formed described oil gas essence separating plate, and described oil gas crude separation plate and described oil gas essence separating plate interval predeterminable range.
Preferably, described cylinder head cover body is provided with draw-in groove, and described oil-gas separating plate all connects and fixes in described draw-in groove.
Preferably, described base plate is provided with support block, and described support block is supported in described castellated plates one end away from described cylinder head cover body.
The beneficial effect that the utility model obtains is:
The utility model provides a kind of cylinder head cover assembly of diesel engine, comprise cylinder head cover body, the base plate of cylinder head cover body is connected to bolt, described cylinder head cover body is provided with oil-gas separation chamber, described base plate is closed in described oil-gas separation chamber, and described base plate is provided with air-flow enters described oil-gas separation chamber suction port from crankcase, the many groups of oil-gas separating plate along air flow direction parallel arrangement are provided with in described oil-gas separation chamber, described oil-gas separating plate comprises successively and the orifice plate of parallel arrangement, castellated plates and baffle plate, described orifice plate is provided with multiple through hole, described castellated plates and described cylinder head cover body are provided with the first gap, described baffle plate and described cylinder head cover body are provided with the second gap, described first gap and described second gap are interspersed, and described cylinder head cover body is provided with the installation position coordinated with bent axle forced ventilation valve.Adopt this technological scheme, oil-gas separating plate is formed by orifice plate, castellated plates and baffle combination, and multiple through hole is set on orifice plate, when from the gas stream in crankcase through through hole on orifice plate time, oil gas air-flow is split by multiple through hole and is accelerated, and define stronger shock with castellated plates, baffle plate, thus improve the effect of Oil-gas Separation; Meanwhile, the installation position being located at cylinder head cover body achieves the installation with crankcase vent valve, makes the integration degree of cylinder head cover higher, decreases the connecting pipeline between cylinder head cover body and crankcase vent valve.
Accompanying drawing explanation
Fig. 1 is the structural representation of the cylinder head cover of prior art;
Fig. 2 is analysing and observe and explosive view of an embodiment of cylinder head cover assembly of the present utility model;
Fig. 3 is the axonometric drawing of an embodiment of crude separation orifice plate of the present utility model;
Fig. 4 is the axonometric drawing of an embodiment of smart separation orifice of the present utility model;
Fig. 5 is the plan view of an embodiment of crude separation castellated plates of the present utility model;
Fig. 6 is the plan view that essence of the present utility model is separated an embodiment of castellated plates;
Fig. 7 is the plan view of an embodiment of crude separation baffle plate of the present utility model;
Fig. 8 is the plan view of an embodiment of smart skimming baffle of the present utility model;
Fig. 9 is the plan view of an embodiment of base plate of the present utility model;
Figure 10 is the worm's eye view of an embodiment of cylinder head cover body of the present utility model;
Figure 11 is the plan view of an embodiment of cylinder head cover body of the present utility model.
Description of reference numerals:
In Fig. 1: 1 '-cylinder head cover; 2 '-oil and gas separating system; Chamber, 11 '-labyrinth; 21 '-base plate; 22 '-labyrinth baffle plate; 221 '-draw-in groove; 23 '-opening.
In Fig. 2-11: 100-cylinder head cover assembly; 10-cylinder head cover body; 11-oil-gas separation chamber; 12-oil-gas separating plate; 121-oil gas crude separation plate; 122-oil gas essence separating plate; 123-crude separation orifice plate; 124-essence separation orifice; 125-crude separation castellated plates; 126-essence is separated castellated plates; 127-crude separation baffle plate; 128-essence skimming baffle; 13-draw-in groove; 14-installation position; 20-base plate; 21-suction port; 22-support block; 30-bent axle forced ventilation valve.
Embodiment
In order to make those skilled in the art understand the technical solution of the utility model better, below in conjunction with accompanying drawing, the utility model is further detailed.
By reference to the accompanying drawings shown in 2-11, the utility model provides a kind of cylinder head cover assembly 100 of diesel engine, comprise cylinder head cover body 10, the base plate 20 of cylinder head cover body 10 is connected to bolt, cylinder head cover body 10 is provided with oil-gas separation chamber 11, base plate 20 is closed in oil-gas separation chamber 11, and base plate 20 is provided with air-flow enters oil-gas separation chamber 11 suction port 21 from crankcase, in order to solve the defect existed in prior art, the utility model has made following technological improvement: be provided with the many groups of oil-gas separating plate 12 along air flow direction parallel arrangement in oil-gas separation chamber 11, oil-gas separating plate 12 comprises successively and the orifice plate of parallel arrangement, castellated plates and baffle plate, orifice plate is provided with multiple through hole, castellated plates and cylinder head cover body 10 are provided with the first gap, baffle plate and cylinder head cover body 10 are provided with the second gap, first gap and the second gap are interspersed, and cylinder head cover body 10 is provided with the installation position coordinated with bent axle forced ventilation valve 30.Adopt this technological scheme, oil-gas separating plate is formed by orifice plate, castellated plates and baffle combination, and multiple through hole is set on orifice plate, when from the gas stream in crankcase through through hole on orifice plate time, oil gas air-flow is split by multiple through hole and is accelerated, and define stronger shock with castellated plates, baffle plate, thus improve the effect of Oil-gas Separation; Meanwhile, the installation position being located at cylinder head cover body achieves the installation with crankcase vent valve, makes the integration degree of cylinder head cover higher, decreases the connecting pipeline between cylinder head cover body and crankcase vent valve.
In above-mentioned technological scheme, orifice plate is preferably square platy structure, one end of orifice plate and base plate 20 against, its excess-three end respectively all with the inwall of cylinder head cover body 10 against, after so arranging, the circulation of through hole that oil gas can only be arranged on orifice plate, realizes the divided and object accelerated of air-flow; Meanwhile, arrange one end of the castellated plates of square structure and 10 roofs of cylinder head cover body against, its opposite end is unsettled and form the first gap, all the other two ends respectively with the sidewall of cylinder head cover body 10 against; One end of baffle plate and base plate 20 against, its opposite end is unsettled and form the second gap, the sidewall of all the other two ends and cylinder head cover body 10 against, which forms the first gap and the second gap that are interspersed, the path that oil gas is passed through is curved path, add the area of contact of oil gas and castellated plates and baffle plate, this oil-gas separating plate 12 is simple with the cooperating structure of oil-gas separation chamber 11, and good oil gas separation effect.
And further, in order to make oil gas separation promote further, also preferred oil-gas separating plate 12 comprises one group of oil gas crude separation plate 121, and one group of oil gas essence separating plate 122; Orifice plate comprises crude separation orifice plate 123 and smart separation orifice 124, and castellated plates comprises crude separation castellated plates 125 and is separated castellated plates 126 with essence, and baffle plate comprises crude separation baffle plate 127 and smart skimming baffle 128.Crude separation orifice plate 123, crude separation castellated plates 125 and crude separation baffle plate 127 are arranged successively and are combined into oil gas crude separation plate 121; Essence separation orifice 124, essence are separated castellated plates 126 and smart skimming baffle 128 is arranged successively and is combined into oil gas essence separating plate 122, and oil gas crude separation plate 121 and oil gas essence separating plate 122 interval predeterminable range.In this scheme, on crude separation orifice plate, the diameter of through hole is 2.2mm, and the first time crude separation of oil gas quilt also collects part oil droplet, and through-hole diameter is 2.0mm on smart separation orifice, oil gas is split further and is accelerated, and to realize the collection to less oil droplet, further increases the effect of Oil-gas Separation.
Oil-gas separating plate 12 be fixed with multiple embodiments, in this programme, be preferably provided with draw-in groove 13 at cylinder head cover body 10, oil-gas separating plate 12 all connects and fixes in draw-in groove 13, and this connection scheme is simple, and installation efficiency is high.
Simultaneously, because cylinder head cover assembly 100 is installed on the top of cylinder cap, and base plate 20 is near cylinder cap, consider that castellated plates is unsettled away from one end of cylinder head cover body 10, in order to avoid castellated plates is owing to automatically dropping, cause Oil-gas Separation to lose efficacy, preferably support block 22 is set on the base plate 20, support block 22 is supported in castellated plates one end away from cylinder head cover body, and namely the program ensure that the first gap of castellated plates and cylinder head cover body, improves the installation fastness of castellated plates simultaneously.
The cylinder head cover assembly 100 that the utility model provides, cylinder head cover body 10 is provided with installation position 14, installation position 14 is for installing crankcase ventilation valve 30, particularly, the annular protrusion of high 10mm is cast as at the top of cylinder head cover body 10, and at the bolt hole of uniform 4 M6 of the circumference of annular protrusion, crankcase ventilation valve 30 is mounted on cylinder head cover body 10 by bolt hole, this mounting structure makes cylinder head cover body 10 and crankcase ventilation valve 30 become one, integration degree is higher, and saves connecting pipeline.
Below be only preferred implementation of the present utility model, it is to be noted, these embodiments are only not used in restriction scope of the present utility model for illustration of the utility model, and, after having read content of the present utility model, relevant technical staff in the field can make various change or amendment to the utility model, and these equivalent form of values fall into the application's appended claims limited range equally.
Claims (5)
1. the cylinder head cover assembly of a diesel engine, comprise cylinder head cover body, the base plate of cylinder head cover body is connected to bolt, described cylinder head cover body is provided with oil-gas separation chamber, described base plate is closed in described oil-gas separation chamber, and described base plate is provided with air-flow enters described oil-gas separation chamber suction port from crankcase, it is characterized in that, the many groups of oil-gas separating plate along air flow direction parallel arrangement are provided with in described oil-gas separation chamber, described oil-gas separating plate comprises successively and the orifice plate of parallel arrangement, castellated plates and baffle plate, described orifice plate is provided with multiple through hole, described castellated plates and described cylinder head cover body are provided with the first gap, described baffle plate and described cylinder head cover body are provided with the second gap, described first gap and described second gap are interspersed, and described cylinder head cover body is provided with the installation position coordinated with bent axle forced ventilation valve.
2. cylinder head cover assembly according to claim 1, is characterized in that, described orifice plate is square platy structure, one end of described orifice plate and described base plate against, its excess-three end respectively with the inwall of described cylinder head cover body against; Described castellated plates is square platy structure, one end of described castellated plates and the roof of cylinder head cover body against, its opposite end is unsettled and form described first gap, all the other two ends respectively with the sidewall of described cylinder head cover body against; One end of described baffle plate and described base plate against, its opposite end is unsettled and form described second gap, the sidewall of all the other two ends and described cylinder head cover body against.
3. cylinder head cover assembly according to claim 1 and 2, is characterized in that, described oil-gas separating plate comprises one group of oil gas crude separation plate, and one group of oil gas essence separating plate; Described orifice plate comprises crude separation orifice plate and smart separation orifice, and described castellated plates comprises crude separation castellated plates and is separated castellated plates with essence, and described baffle plate comprises crude separation baffle plate and smart skimming baffle; Described crude separation orifice plate, described crude separation castellated plates and described crude separation baffle plate are arranged successively and are formed described oil gas crude separation plate; Described smart separation orifice, described essence separation castellated plates and described smart skimming baffle are arranged successively and are formed described oil gas essence separating plate, and described oil gas crude separation plate and described oil gas essence separating plate interval predeterminable range.
4. cylinder head cover assembly according to claim 1 and 2, is characterized in that, described cylinder head cover body is provided with draw-in groove, and described oil-gas separating plate all connects and fixes in described draw-in groove.
5. cylinder head cover assembly according to claim 4, is characterized in that, described base plate is provided with support block, and described support block is supported in described castellated plates one end away from described cylinder head cover body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520648303.4U CN204877706U (en) | 2015-08-24 | 2015-08-24 | Cylinder cap cover assembly of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520648303.4U CN204877706U (en) | 2015-08-24 | 2015-08-24 | Cylinder cap cover assembly of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204877706U true CN204877706U (en) | 2015-12-16 |
Family
ID=54822088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520648303.4U Expired - Fee Related CN204877706U (en) | 2015-08-24 | 2015-08-24 | Cylinder cap cover assembly of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204877706U (en) |
-
2015
- 2015-08-24 CN CN201520648303.4U patent/CN204877706U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20190824 |