CN113530702B - Engine cylinder cover shield - Google Patents
Engine cylinder cover shield Download PDFInfo
- Publication number
- CN113530702B CN113530702B CN202110996244.XA CN202110996244A CN113530702B CN 113530702 B CN113530702 B CN 113530702B CN 202110996244 A CN202110996244 A CN 202110996244A CN 113530702 B CN113530702 B CN 113530702B
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- China
- Prior art keywords
- oil filling
- engine oil
- cover
- engine
- filling port
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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.)
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Classifications
-
- 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
- F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
-
- 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
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/04—Filling or draining lubricant of or from machines or engines
- F01M11/0458—Lubricant filling and draining
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses an engine cylinder cover shield which comprises a cylinder cover shield (1) and an engine oil filling port cover (2), wherein an engine oil filling port (11) is formed in the cylinder cover shield (1), a baffle assembly (5) is installed in the engine oil filling port (11), the baffle assembly (5) is in sliding fit with the inner wall of the engine oil filling port (11), the baffle assembly (5) can move along the axial direction of the engine oil filling port (11), the engine oil filling port cover (2) is in threaded connection with the baffle assembly (5), an engine oil filling channel (54) is formed in the baffle assembly (5), and the engine oil filling channel (54) is completely blocked by the engine oil filling port cover (2) after the engine oil filling port cover (2) is installed in place. The invention can ensure the complete sealing of the engine oil filling port and effectively solve the engine oil emulsification problem.
Description
Technical Field
The invention relates to a protective cover, in particular to an engine cylinder cover protective cover.
Background
For satisfying engine lightweight design requirement, the cylinder cap guard shield is mostly the injection molding, inside integrated oil-gas separation device to arrange the machine oil filler in suitable position, filling machine oil when being convenient for auto repair maintenance. Normally, the cylinder cover protective cover is assembled with an oil filler oil port cover. When the engine oil needs to be filled, the engine oil can be filled by unscrewing the engine oil filling port cover. To facilitate oil filling, the oil fill port is typically in direct communication with the crankcase. As shown in fig. 1, in some main engine plants, in order to prevent foreign matter from falling into the crankcase 200 through the oil filling port 100, a baffle 300 is locally disposed at the position of the oil filling port 100. However, to ensure the smoothness of the oil charge 100, the baffle 300 does not completely close the oil charge port 100. Such a structure may cause an oil emulsification problem.
When the engine is running, the high-pressure combustible mixture and burned gas in the combustion chamber leak into the crankcase 200 through a gap between the piston group and the cylinder to a greater or lesser extent, causing blow-by. The blow-by gas is composed of unburned hydrocarbon, steam, exhaust gas, and the like. Because the cylinder cover shield 400 is an injection molding part, heat transfer is slow, and the temperature of the 100 parts of the engine oil filling opening rises slowly. When the vehicle runs for a short distance, because the temperature of the engine oil filling port 100 of the cylinder cover shield 400 is low, water vapor in blow-by gas is easy to condense and form water when meeting the engine oil filling port 100. Along with the operation of the engine, the engine oil splashes to the engine oil filling port 100 by the rotation of the timing chain or the camshaft, and is continuously attached and accumulated. The oil and the condensed water are fully mixed to form an oil emulsion.
Disclosure of Invention
The invention aims to provide an engine cylinder cover shield to solve the defects in the prior art, which can ensure that an engine oil filling port is completely sealed and can effectively solve the problem of engine oil emulsification.
The invention provides an engine cylinder cover protective cover which comprises a cylinder cover protective cover and an engine oil filling port cover, wherein an engine oil filling port is formed in the cylinder cover protective cover, a baffle assembly is installed in the engine oil filling port and is in sliding fit with the inner wall of the engine oil filling port, the baffle assembly can move along the axial direction of the engine oil filling port, the engine oil filling port cover is in threaded connection with the baffle assembly, an engine oil filling channel is formed in the baffle assembly, and the engine oil filling port cover completely blocks the engine oil filling channel after the engine oil filling port cover is installed in place.
In the engine cylinder head protective cover, preferably, the baffle plate assembly includes a sealing plate and a sleeve portion, the sleeve portion is in sliding fit with the engine oil filling port, an internal thread is formed on the sleeve portion, the sealing plate is fixedly arranged at the bottom of the sleeve portion, and the sealing plate and the sleeve portion are coaxially arranged.
In the engine cylinder cover shield, preferably, the engine oil filling port cover includes an outer cover cap and a screwing cylindrical portion, a groove is formed in a bottom surface of the outer cover cap, an upper portion of the screwing cylindrical portion is fixedly arranged in the groove, the screwing cylindrical portion and the outer cover cap are coaxially arranged, an outer diameter of the engine oil filling port is smaller than a diameter of the groove, an engine oil filling port cover sealing ring is sleeved on the screwing cylindrical portion, an outer diameter of the screwing cylindrical portion is equal to an inner diameter of the sleeve portion, and an external thread is formed on the screwing cylindrical portion.
In the engine head cover, preferably, a plurality of the oil filling passages are formed at one end of the sleeve portion connected to the seal plate, and the oil filling passages are arranged at equal intervals along the circumference of the sleeve portion.
In the engine cylinder head shield, preferably, a plurality of first strip-shaped grooves and a plurality of second strip-shaped grooves are formed in the inner wall of the engine oil filling port, the first strip-shaped grooves and the second strip-shaped grooves are both arranged along the axial direction of the engine oil filling port, the lower end of the first strip-shaped grooves is communicated with the bottom of the cylinder head shield, the second strip-shaped grooves extend from the top of the inner wall of the engine oil filling port to the middle lower part of the inner wall of the engine oil filling port, a limiting rib matched with the first strip-shaped grooves is formed on the outer wall of the sleeve portion, and a limiting clamp matched with the second strip-shaped grooves is formed on the upper part of the sleeve portion.
In the engine cylinder head protective cover, preferably, a sealing groove is formed around the engine oil filling port on the cylinder head protective cover body, and a sealing ring is assembled in the sealing groove.
Compared with the prior art, the cylinder cover comprises a cylinder cover protective cover and an engine oil filling port cover, an engine oil filling port is formed in the cylinder cover protective cover, a baffle assembly is installed in the engine oil filling port, the baffle assembly is in sliding fit with the inner wall of the engine oil filling port, the baffle assembly can move along the axial direction of the engine oil filling port, the engine oil filling port cover is in threaded connection with the baffle assembly, an engine oil filling channel is formed in the baffle assembly, and the engine oil filling channel is completely blocked by the engine oil filling port cover after the engine oil filling port cover is installed in place. Through the setting of baffle subassembly, when opening when adding oil mouth lid, the baffle subassembly is automatic whereabouts under the dead weight, and in machine oil can flow into the crankcase through machine oil filling passageway, when screwing up and adding oil mouth lid, the baffle subassembly rose and in adding the machine oil filling passageway completely and making the machine oil that splashes can't get into the machine oil filling mouth, has effectively solved machine oil emulsification problem.
Drawings
FIG. 1 is a schematic structural view of a prior art cylinder head shield;
FIG. 2 is a partial structural top view of the head shroud of the present invention;
FIG. 3 isbase:Sub>A cross-sectional view A-A of FIG. 2;
FIG. 4 is a semi-sectional view of the head shield and baffle assembly of the present invention without the refueling cap installed;
FIG. 5 is a bottom view of the cylinder head shroud of the present invention;
FIG. 6 is an isometric view of the baffle assembly of the present invention.
Description of the reference numerals:
in fig. 1: 100-engine oil filling port, 200-crankcase, 300-baffle and 400-cylinder cover shield;
in fig. 2-6: 1-cylinder cover shield, 11-engine oil filling port, 12-first strip-shaped groove, 13-second strip-shaped groove, 2-engine oil filling port cover, 21-outer cover cap, 22-screwing cylindrical part, 23-groove, 24-external thread, 3-engine oil filling port cover sealing ring, 4-sealing ring, 5-baffle component, 51-limiting rib, 52-limiting clamp, 53-internal thread, 54-engine oil filling channel, 55-sealing plate and 56-sleeve part.
Detailed Description
The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
The embodiment of the invention comprises the following steps: as shown in fig. 1 to 6, an engine cylinder head protective cover comprises a cylinder head protective cover 1 and an engine oil filling port cover 2, an engine oil filling port 11 is formed in the cylinder head protective cover 1, a baffle plate assembly 5 is installed in the engine oil filling port 11, the baffle plate assembly 5 is in sliding fit with the inner wall of the engine oil filling port 11, the engine oil filling port cover 2 is in threaded connection with the baffle plate assembly 5, an engine oil filling channel 54 is formed in the baffle plate assembly 5, the baffle plate assembly 5 has two working positions, when the engine oil filling port cover 2 is installed, the baffle plate assembly 5 moves up to the first working position along the engine oil filling port 11 under the action of threaded fit, when the engine oil filling port cover 2 is installed in place, the engine oil filling channel 54 is completely blocked by the engine oil filling port cover 2, engine oil cannot enter the engine oil filling port 11, when the engine oil filling port cover 2 is detached, the baffle plate assembly 5 moves down to the second working position under the action of self weight, the engine oil filling port 54 is unblocked and communicates the engine oil filling port 11 with a crankcase, so that the engine oil can splash into the crankcase.
By means of the structural design, the engine oil can not splash and adhere to and gather in the engine oil filling port 11 along with the rotation of the timing chain or the camshaft in the operation process of the engine, water vapor can not be condensed in the engine oil filling port 11, and meanwhile, the oil filling at the time of maintenance of the whole vehicle is not influenced, so that the problem of engine oil emulsification at the engine oil filling port of the cylinder cover shield is solved.
In a specific embodiment, the baffle plate assembly 5 includes a seal plate 55 and a sleeve portion 56, the sleeve portion 56 is of a cylindrical structure, the sleeve portion 56 is slidably fitted with the oil filling port 11, an internal thread 53 is formed on the sleeve portion 56, the seal plate 55 is fixedly arranged at the bottom of the sleeve portion 56, and the seal plate 55 and the sleeve portion 56 are coaxially arranged. A sealing groove is arranged around an engine oil filling port 11 on the body of the cylinder cover shield 1, and a sealing ring 4 is assembled in the sealing groove.
It is also conceivable to provide a labyrinth rib instead of the seal ring 4, in order to seal the oil filling opening 11 after screwing the oil filling opening cover 2, and to prevent oil droplets and water vapor splashed in the crankcase from entering the area of the oil filling opening 11.
Further, the oil adding port cover 2 comprises an outer cover cap 21 and a screwing cylindrical portion 22, a groove 23 is formed in the bottom surface of the outer cover cap 21, the upper portion of the screwing cylindrical portion 22 is fixedly arranged in the groove 23, the screwing cylindrical portion 22 and the outer cover cap 21 are coaxially arranged, the outer diameter of the oil adding port 11 is smaller than the diameter of the groove 23, an oil adding port cover sealing ring 3 is sleeved on the screwing cylindrical portion 22, the outer diameter of the screwing cylindrical portion 22 is equal to the inner diameter of the sleeve portion 56, and external threads 24 are formed on the screwing cylindrical portion 22.
Further, a plurality of oil filling passages 54 are formed at one end of the sleeve portion 56 connected to the seal plate 55, and the oil filling passages 54 are arranged at equal intervals along the circumference of the sleeve portion 56. A plurality of first strip-shaped grooves 12 and a plurality of second strip-shaped grooves 13 are formed in the inner wall of the engine oil filling port 11, the first strip-shaped grooves 12 and the second strip-shaped grooves 13 are arranged along the axial direction of the engine oil filling port 11, the lower ends of the first strip-shaped grooves 12 are communicated with the bottom of the cylinder head shield 1, the second strip-shaped grooves 13 extend from the top of the inner wall of the engine oil filling port 11 to the middle lower part of the inner wall of the engine oil filling port 11, limiting ribs 51 matched with the first strip-shaped grooves 12 are formed in the outer wall of the sleeve portion 56, and limiting clamps 52 matched with the second strip-shaped grooves 13 are formed in the upper part of the sleeve portion 56.
The first strip-shaped groove 12 is mainly used for being matched with a limiting rib 51 on the sleeve portion 56 to prevent the sleeve portion 56 from rotating along with the screwing process of the oil filler cover 2; the provision of the second strip-like groove 13 prevents the boss portion 56 from being detached from the head shroud 1.
Besides, in addition to the above embodiments, the sleeve portion 56 may also be designed to be a polygonal-shaped sleeve structure, so that the sleeve portion 56 is effectively prevented from following and being separated during the process of screwing the engine oil filler cap 2, and the cylinder head protective cover 1 is structurally adapted, specifically designed according to the layout boundary and the requirement.
The use method of the invention comprises the following steps: in the process of screwing the oil filler cover 2 of the cylinder head protective cover 1, the external thread 23 on the oil filler cover 2 is firstly contacted with the internal thread 53 of the sleeve part 56 for pre-screwing, the sleeve part 56 does not rotate under the action of the limiting rib 51, and the sleeve part 56 moves upwards in the engine oil filling port 11 along with the screwing of the oil filler cover 2 until the sealing plate 55 is attached to the sealing ring 4, and at the moment, the baffle plate assembly is located at the first working position to completely close the engine oil filling port 11. At this time, the engine oil splashed during the operation of the engine cannot enter the engine oil filling port 11 because the sealing plate 55 seals the engine oil filling port 11, so that the problem of engine oil emulsification is solved, and meanwhile, the dual sealing of the engine oil filling port 11 is realized, and the reliability is improved. After the engine oil filling port cover 2 is unscrewed, the baffle plate assembly 5 moves downwards in the engine oil filling port 11 due to the action of self gravity and the like, the limiting clamp 52 is positioned at the bottom of the second strip-shaped groove 13 at the moment, the engine oil filling channel 54 is completely opened, and the filled engine oil sequentially passes through the engine oil filling port 11 and the engine oil filling channel 54 and finally flows into the crankcase.
The construction, features and functions of the present invention are described in detail in the embodiments illustrated in the drawings, which are only preferred embodiments of the present invention, but the present invention is not limited by the drawings, and all equivalent embodiments modified or changed according to the idea of the present invention should fall within the protection scope of the present invention without departing from the spirit of the present invention covered by the description and the drawings.
Claims (4)
1. The utility model provides an engine cylinder lid guard shield, includes cylinder lid guard shield (1) and adds machine oil mouth lid (2), its characterized in that: an engine oil filling opening (11) is formed in the cylinder cover protective cover (1), a baffle assembly (5) is installed in the engine oil filling opening (11), the baffle assembly (5) is in sliding fit with the inner wall of the engine oil filling opening (11), the baffle assembly (5) can move along the axial direction of the engine oil filling opening (11), the engine oil filling opening cover (2) is in threaded connection with the baffle assembly (5), an engine oil filling channel (54) is formed in the baffle assembly (5), and the engine oil filling opening cover (2) completely blocks the engine oil filling channel (54) after the engine oil filling opening cover (2) is installed in place;
the baffle plate assembly (5) comprises a sealing plate (55) and a sleeve part (56), the sleeve part (56) is in sliding fit with the engine oil filling opening (11), an internal thread (53) is formed on the sleeve part (56), the sealing plate (55) is fixedly arranged at the bottom of the sleeve part (56), and the sealing plate (55) and the sleeve part (56) are coaxially arranged;
add oil mouth lid (2) including outer shroud (21) and twist dress cylinder portion (22), the bottom surface of outer shroud (21) is formed with recess (23), the upper portion of twisting dress cylinder portion (22) sets firmly in recess (23), twist dress cylinder portion (22) with outer shroud (21) coaxial arrangement, the external diameter of machine oil filler (11) is less than the diameter of recess (23), it is equipped with and adds oil mouth lid sealing washer to twist the cover on dress cylinder portion (22), the external diameter of twisting dress cylinder portion (22) equals the internal diameter of sleeve portion (56), it is formed with external screw thread (24) on dress cylinder portion (22) to twist.
2. The engine head shroud of claim 1, wherein: the end of the sleeve portion (56) connected to the seal plate (55) is formed with a plurality of the oil filling passages (54), and the oil filling passages (54) are arranged at equal intervals along the circumference of the sleeve portion (56).
3. Engine head shield according to claim 1 or 2, characterized in that: the engine oil filling device is characterized in that a plurality of first strip-shaped grooves (12) and a plurality of second strip-shaped grooves (13) are formed in the inner wall of the engine oil filling opening (11), the first strip-shaped grooves (12) and the second strip-shaped grooves (13) are arranged along the axial direction of the engine oil filling opening (11), the lower end of the first strip-shaped grooves (12) is communicated with the bottom of the cylinder cover shield (1), the second strip-shaped grooves (13) extend from the top of the inner wall of the engine oil filling opening (11) to the middle lower portion of the inner wall of the engine oil filling opening (11), limiting ribs (51) matched with the first strip-shaped grooves (12) are formed in the outer wall of the sleeve portion (56), and limiting clamps (52) matched with the second strip-shaped grooves (13) are formed in the upper portion of the sleeve portion (56).
4. The engine head shroud of claim 3, wherein: the cylinder cover shield (1) body is provided with a sealing groove around the engine oil filling port (11), and a sealing ring is assembled in the sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110996244.XA CN113530702B (en) | 2021-08-27 | 2021-08-27 | Engine cylinder cover shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110996244.XA CN113530702B (en) | 2021-08-27 | 2021-08-27 | Engine cylinder cover shield |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113530702A CN113530702A (en) | 2021-10-22 |
| CN113530702B true CN113530702B (en) | 2022-12-16 |
Family
ID=78092188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110996244.XA Active CN113530702B (en) | 2021-08-27 | 2021-08-27 | Engine cylinder cover shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113530702B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1395744A (en) * | 1972-05-22 | 1975-05-29 | Automotive Proeucts Ltd | Oil filler cap |
| JP2005120965A (en) * | 2003-10-20 | 2005-05-12 | Hino Motors Ltd | Oil fill port structure |
| CN205936742U (en) * | 2016-08-23 | 2017-02-08 | 安徽江淮汽车股份有限公司 | Machine oil filler lid assembly |
| JP2021067224A (en) * | 2019-10-24 | 2021-04-30 | 株式会社豊田自動織機 | Oil filler cap |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4212968C2 (en) * | 1992-04-18 | 1998-07-02 | Mann & Hummel Filter | Pressure control valve for the crankcase ventilation of an internal combustion engine |
| US6983814B2 (en) * | 2003-07-11 | 2006-01-10 | Harley-Davidson Motor Company Group, Inc. | Oil tank cap |
| CN204253134U (en) * | 2014-10-28 | 2015-04-08 | 奇瑞汽车股份有限公司 | A kind of oil filler cap assembly |
| CN205349463U (en) * | 2016-02-23 | 2016-06-29 | 重庆长安汽车股份有限公司 | Engine oil flap |
| JP6700602B2 (en) * | 2016-09-02 | 2020-05-27 | トヨタ紡織株式会社 | Lubricant oil injection structure for internal combustion engine |
| CN106481382A (en) * | 2016-11-21 | 2017-03-08 | 安徽江淮汽车集团股份有限公司 | Engine oil filler cap assembly |
| CN207348929U (en) * | 2017-10-26 | 2018-05-11 | 北京汽车动力总成有限公司 | A kind of machine oil filling component, the engine with it and the vehicle with it |
| CN108868956B (en) * | 2018-06-27 | 2019-12-03 | 安徽江淮汽车集团股份有限公司 | Prevent the oil filler assembly of lubricating oil emulsion |
| CN112555048B (en) * | 2020-12-09 | 2022-03-29 | 安徽江淮汽车集团股份有限公司 | Engine cylinder cover shield and vehicle |
| CN113027632B (en) * | 2021-03-31 | 2022-02-25 | 安徽江淮汽车集团股份有限公司 | Engine cylinder cover shield and vehicle |
-
2021
- 2021-08-27 CN CN202110996244.XA patent/CN113530702B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1395744A (en) * | 1972-05-22 | 1975-05-29 | Automotive Proeucts Ltd | Oil filler cap |
| JP2005120965A (en) * | 2003-10-20 | 2005-05-12 | Hino Motors Ltd | Oil fill port structure |
| CN205936742U (en) * | 2016-08-23 | 2017-02-08 | 安徽江淮汽车股份有限公司 | Machine oil filler lid assembly |
| JP2021067224A (en) * | 2019-10-24 | 2021-04-30 | 株式会社豊田自動織機 | Oil filler cap |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113530702A (en) | 2021-10-22 |
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| CB02 | Change of applicant information |
Address after: No.669 Shixin Road, economic development zone, Feixi County, Hefei City, Anhui Province Applicant after: ANHUI JIANGHUAI AUTOMOBILE GROUP Corp.,Ltd. Address before: 230601 No. 669 Shixin Road, Taohua Industrial Park, Hefei City, Anhui Province Applicant before: ANHUI JIANGHUAI AUTOMOBILE GROUP Corp.,Ltd. |
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