CN204691844U - A kind of sleeve pipe for engine valve actuating mechanism - Google Patents
A kind of sleeve pipe for engine valve actuating mechanism Download PDFInfo
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- CN204691844U CN204691844U CN201520381288.1U CN201520381288U CN204691844U CN 204691844 U CN204691844 U CN 204691844U CN 201520381288 U CN201520381288 U CN 201520381288U CN 204691844 U CN204691844 U CN 204691844U
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- sleeve pipe
- actuating mechanism
- valve actuating
- engine
- seal ring
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Abstract
For a sleeve pipe for engine valve actuating mechanism, this casing pipe sleeve is loaded on the outside of push rod, and the upper end of sleeve pipe is connected by adhesive sealing with cylinder head, is sealed between the lower end of sleeve pipe and engine housing by elastic seal ring.The upper end of sleeve pipe of the present utility model and cylinder head are fixing seal, and lower end and engine housing are dynamic seal (packing), avoid because the reasons such as vibration cause sealing place ftracture and cause the phenomenons such as leakage of oil, safe and reliable.The lower end of sleeve pipe of the present utility model arranges annular protrusion and coordinates with elastic seal ring and implement to seal, and not only ensure that stability and the reliability of structure, and be convenient to installation and removal, sleeve structure makes engine structure simpler, and weight is lighter.
Description
Technical field
The utility model relates to a kind of sleeve pipe, particularly relates to a kind of sleeve pipe for engine valve actuating mechanism.
Background technique
Engine valve actuating mechanism is the mechanism controlling cylinder air inlet, exhaust.Distribution device runs under cam effect, controls moving up and down of valve rocker, and then drive valve opening or closedown by the rotation of cam, and to ensure that fresh air enters cylinder head, waste gas discharges cylinder head.
Existing a kind of engine valve actuating mechanism, cam is connected with valve rocker with push rod by hydraulic tappet, sleeve pipe is provided with outside push rod, sleeve upper end is connected by adhesive sealing with cylinder head, lower end is connected by adhesive sealing with hydraulic tappet mounting hole, and in engine working process, gluing segment easily comes unglued, cause oil leakage phenomenon, there is potential safety hazard.
Model utility content
The purpose of this utility model is to provide a kind of safe and reliable sleeve pipe for engine valve actuating mechanism.
The purpose of this utility model realizes like this, a kind of sleeve pipe for engine valve actuating mechanism, this casing pipe sleeve is loaded on the outside of push rod, and the upper end of sleeve pipe is connected by adhesive sealing with cylinder head, is sealed between the lower end of sleeve pipe and engine housing by elastic seal ring.
In order to ensure sealing effect, the lower end of sleeve pipe is provided with annular protrusion, and elastic seal ring is arranged on below annular protrusion.Elastic seal ring coordinates with annular protrusion, effectively can ensure sealing.
Elastic seal ring also can be arranged on above annular protrusion.
Elastic seal ring external diameter be greater than annular protrusion external diameter.
In order to compact structure, simultaneously in order to ensure sealing effect, elastic seal ring and annular protrusion are closely affixed.
Push rod lower end is connected with hydraulic tappet, and push rod upper end is connected with valve rocker, is provided with oily passage in push rod, and this is crossed oily passage and is communicated with the oil duct on valve rocker.
The upper end of loop bar cavity is communicated with cylinder head inner cavity, and the lower end of collar cavities is communicated with bottom half oil storage tank by the oilhole on engine housing.Machine oil arrives valve rocker by the oily passage of the mistake in hydraulic tappet and push rod, reach pitman arm shaft kinematic pair and cylinder head component by the oil duct on valve rocker and it lubricated, finally from cylinder head cavity by the oil storage tank of collar cavities inflow engine bottom half.
The utility model has following beneficial effect:
1, the upper end of sleeve pipe of the present utility model and cylinder head are fixing seal, lower end and engine housing are dynamic seal (packing), avoid because the reasons such as vibration cause sealing place ftracture and cause the phenomenons such as leakage of oil, safe and reliable, meanwhile, the requirement to parts machining precision such as cylinder head, casing, cylinder blocks is reduced.
2, the lower end of sleeve pipe of the present utility model arranges annular protrusion and coordinates with elastic seal ring and implement to seal, and not only ensure that stability and the reliability of structure, and is convenient to installation and removal.
3, the utility model simplifies component structural and the difficulty of processing such as cylinder head, casing, cylinder block, also mitigates component weight simultaneously, and structure is simple, is convenient to implement.
4, sleeve structure of the present utility model makes engine structure simpler, and weight is lighter.
Accompanying drawing explanation
Fig. 1 is the sleeve structure schematic diagram of the utility model for engine valve actuating mechanism;
Fig. 2 is that the utility model sleeve pipe is for engine valve actuating mechanism schematic diagram;
In figure, 1. push rod, 2. sleeve pipe, 3. cylinder head, 4. engine housing, 5. elastic seal ring, 6. annular protrusion, 7. hydraulic tappet, 8. valve rocker, 9. cross oily passage, 10. oil duct, 11. oilholes, 12. oil storage tanks, 13. axis holes, 14. valves.
Embodiment
Embodiment 1, a kind of sleeve pipe for engine valve actuating mechanism, see Fig. 1 and Fig. 2, sleeve pipe 2 is set in the outside of push rod 1, the upper end of sleeve pipe 2 is connected by adhesive sealing with cylinder head 3, sealed by elastic seal ring 5 between the lower end of sleeve pipe and engine housing 4, sleeve pipe 2 lower end is provided with annular protrusion 6 and coordinates with elastic seal ring 5.
Embodiment 2, a kind of sleeve pipe for engine valve actuating mechanism, see Fig. 1 and Fig. 2, the lower end of push rod 1 is connected with the hydraulic tappet 7 be arranged in engine housing 4, upper end is connected with the valve rocker 8 be arranged in cylinder head 3, oily passage 9 was provided with in push rod 1, valve rocker 8 is provided with the axis hole 13 installing pitman arm shaft, and valve rocker 8 rear end is provided with the oil duct 10 of the oily passage 9 of mistake on connecting shaft hole 13 and push rod 1, and rear end is provided with the oil duct 10 of connecting shaft hole 13 and valve rocker 8 leading exterior surface.Sleeve pipe 2 is set in the outside of push rod 1, and the upper end of sleeve pipe 2 is connected by adhesive sealing with cylinder head 3, is sealed between the lower end of sleeve pipe and engine housing 4 by elastic seal ring 5.The lower end of sleeve pipe 2 is provided with annular protrusion 6, and elastic seal ring 5 is positioned at below annular protrusion 6, and elastic seal ring 5 and annular protrusion 6 are closely affixed, and the external diameter of elastic seal ring 5 is greater than the external diameter of annular protrusion 6.The upper end of sleeve pipe 2 cavity is communicated with cylinder head 3 inner cavity, and the lower end of sleeve pipe 2 cavity is communicated with oil storage tank 12 bottom casing 4 by the oilhole 11 on engine housing 4.Machine oil arrives the oil duct 10 on valve rocker 9 by the oily passage 9 of the mistake in hydraulic tappet 7 and push rod 1, arrive axis hole 13 and cylinder head 3 by oil duct 10 and pitman arm shaft kinematic pair and cylinder head component are lubricated, finally being collected in cylinder head 3 cavity flows into bottom engine housing 4 oil storage tank 12 by sleeve pipe 2 cavity.
Claims (7)
1. the sleeve pipe for engine valve actuating mechanism, it is characterized in that: described sleeve pipe (2) is set in the outside of push rod (1), the upper end of sleeve pipe (2) is connected by adhesive sealing with cylinder head (3), is sealed between the lower end of sleeve pipe and engine housing (4) by elastic seal ring (5).
2., as claimed in claim 1 for the sleeve pipe of engine valve actuating mechanism, it is characterized in that: the lower end of described sleeve pipe (2) is provided with annular protrusion (6), and described elastic seal ring (5) is positioned at below annular protrusion (6).
3., as claimed in claim 1 for the sleeve pipe of engine valve actuating mechanism, it is characterized in that: the lower end of described sleeve pipe (2) is provided with annular protrusion (6), and elastic seal ring (5) is positioned at above annular protrusion (6).
4. as claimed in claim 2 or claim 3 for the sleeve pipe of engine valve actuating mechanism, it is characterized in that: described elastic seal ring (5) and annular protrusion (6) are closely affixed.
5., as claimed in claim 2 or claim 3 for the sleeve pipe of engine valve actuating mechanism, it is characterized in that: the external diameter of described elastic seal ring (5) be greater than described annular protrusion (6) external diameter.
6. the sleeve pipe for engine valve actuating mechanism as described in any one of claim 1-3, it is characterized in that: the lower end of described push rod (1) is connected with the hydraulic tappet (7) be arranged in engine housing (4), upper end is connected with the valve rocker (8) be arranged in cylinder head (3), be provided with oily passage (9) in push rod (1), the oily passage of described mistake (9) is communicated with the oil duct (10) on valve rocker (8).
7. as claimed in claim 6 for the sleeve pipe of engine valve actuating mechanism, it is characterized in that: the upper end of sleeve pipe (2) cavity is communicated with cylinder head (3) inner cavity, the lower end of sleeve pipe (2) cavity is communicated with casing (4) bottom oil storage tank (12) by the oilhole (11) on engine housing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520381288.1U CN204691844U (en) | 2015-06-05 | 2015-06-05 | A kind of sleeve pipe for engine valve actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520381288.1U CN204691844U (en) | 2015-06-05 | 2015-06-05 | A kind of sleeve pipe for engine valve actuating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204691844U true CN204691844U (en) | 2015-10-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520381288.1U Active CN204691844U (en) | 2015-06-05 | 2015-06-05 | A kind of sleeve pipe for engine valve actuating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204691844U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111707711A (en) * | 2020-06-28 | 2020-09-25 | 西安西电变压器有限责任公司 | Simulation method and device for detecting dissolved gas in oil under insulating oil electrical fault |
-
2015
- 2015-06-05 CN CN201520381288.1U patent/CN204691844U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111707711A (en) * | 2020-06-28 | 2020-09-25 | 西安西电变压器有限责任公司 | Simulation method and device for detecting dissolved gas in oil under insulating oil electrical fault |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200828 Address after: 400054, 14, 126 South Main Road, Banan District, Chongqing Patentee after: CHONGQING ZONGSHEN AIRCRAFT ENGINE MANUFACTURING Co.,Ltd. Address before: 400054 Banan District, Chongqing City Industrial Park Patentee before: CHONGQING ZONGSHEN POWER MACHINERY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Building 14, No. 126, Yunan Avenue, Banan District, Chongqing Patentee after: Chongqing Zongshen Aviation Engine Manufacturing Co.,Ltd. Address before: Building 14, No. 126, Yunan Avenue, Banan District, Chongqing Patentee before: CHONGQING ZONGSHEN AIRCRAFT ENGINE MANUFACTURING CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |