CN204200295U - With the engine valve of helical blade - Google Patents
With the engine valve of helical blade Download PDFInfo
- Publication number
- CN204200295U CN204200295U CN201420558083.1U CN201420558083U CN204200295U CN 204200295 U CN204200295 U CN 204200295U CN 201420558083 U CN201420558083 U CN 201420558083U CN 204200295 U CN204200295 U CN 204200295U
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- Prior art keywords
- valve
- helical blade
- cylindrical
- disc
- stem
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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
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Abstract
A kind of engine valve with helical blade, comprise Valve Disc and valve stem, Valve Disc is provided with sealing cone, the air valve cervix that Valve Disc is connected with valve stem adopts arc transition, it is characterized in that: the cylindrical of the valve end be connected with air valve cervix is provided with the helical blade of three ~ six left-handed or dextrorotation, helical blade is evenly distributed on the cylindrical of valve stem, the helix angle of helical blade is 20 ~ 35 degree, the length L of helical blade is 18 ~ 25mm, and the height h of helical blade is 2.5 ~ 4.5mm.The cylindrical of valve stem designs helical blade, valve rotation is driven by the airflow scouring helical blade of discharging, do not need positive drive type rotating machinery to drive valve rotation, both the circulation of gas can have been improved, turn increase the rigidity of valve, the more important thing is the carbon distribution reducing valve and valve seat, thus ensure the sealing that valve is good and longer life-span.The valve that the utility model provides, is specially adapted to high-power marine motor.
Description
Technical field
The utility model relates to technical field of engines one, particularly a kind of engine valve.
Background technique
Valve is one of strength member of motor, owing to being often subject to washing away of high-temperature fuel gas during work, is thus easy to produce gas leakage, corrosion and the phenomenon such as scaling loss, and Valve Disc center portion and air valve cervix temperature the highest.Traditional engine valve as shown in Figure 1, comprise Valve Disc 1 and valve stem 2, Valve Disc 1 is provided with sealing cone 1-1, the air valve cervix 3 that Valve Disc 1 is connected with valve stem 2 adopts arc transition, air valve cervix 3 adopts the main purpose of arc transition to be the flowing being conducive to gas, ensure the rounding off of air-flow, the more important thing is and air valve cervix surface stress distribution everywhere can be allowed even, herein except affecting gas flow characteristics, also affect the rigidity of valve, weight, heat-conducting property and manufacture cost etc., also be related to the working life of valve simultaneously, because this director is subject to washing away of high-temperature fuel gas the phase, it is valve second hot area simultaneously, valve is easily caused to rupture herein, affect valve working life.Engine valve traditional besides needs positive drive type rotating machinery to drive valve to do evenly to rotate slowly, Valve Disc 1 circumferentially homogeneous temperature is made by rotating, reduce Valve Disc 1 thermal distortion, and the carbon deposit on valve sealing conical surface 1-1 and valve stem 2 can be wiped, both the lubricating condition of valve stem 2 can have been improved, the thermal conductivity of valve seat and conduit can be improved again, make valve sealing conical surface 1-1 not easily produce corrosive wear and the wearing and tearing bad phenomenon such as uneven simultaneously.The disadvantage of this valve rotation mode is that needs positive drive type rotating machinery is to drive valve rotation, add number of spare parts and the manufacture cost of motor, and once positive drive type rotating machinery breaks down, the rotation of valve will be affected, bring impact to the work of motor.
Summary of the invention
The purpose of this utility model be overcome prior art above-mentioned deficiency and a kind of engine valve with helical blade is provided.
The technical solution of the utility model is: a kind of engine valve with helical blade, comprise Valve Disc and valve stem, Valve Disc is provided with sealing cone, the air valve cervix that Valve Disc is connected with valve stem adopts arc transition, the cylindrical of the valve end be connected with air valve cervix is provided with the helical blade of three ~ six left-handed or dextrorotation, helical blade is evenly distributed on the cylindrical of valve stem, the helix angle of helical blade is 20 ~ 35 degree, the length L of helical blade is 18 ~ 25mm, and the height h of helical blade is 2.5 ~ 4.5mm.
The utility model compared with prior art has following features:
1, on the cylindrical of valve stem, helical blade is designed, valve rotation is driven by the airflow scouring helical blade of discharging, both the circulation of gas can have been improved, turn increase the rigidity of valve, the more important thing is the carbon distribution reducing valve and valve seat, thus ensure the sealing that valve is good and longer life-span;
2, do not need positive drive type rotating machinery to drive valve rotation, both reduced the manufacture cost of motor, valve reliably working can be ensured again.
3, the valve that provides of the utility model, is specially adapted to high-power marine motor.
Below in conjunction with the drawings and specific embodiments, detailed construction of the present utility model is further described.
Accompanying drawing explanation
Accompanying drawing 1 is traditional engine valve structure schematic diagram;
The air valve structure schematic diagram that accompanying drawing 2 provides for the utility model;
Accompanying drawing 3 is the A-A sectional view in accompanying drawing 2.
Embodiment
A kind of engine valve with helical blade, as Figure 1-3, comprise Valve Disc 1 and valve stem 2, Valve Disc 1 is provided with sealing cone 1-1, the air valve cervix 3 that Valve Disc 1 is connected with valve stem 2 adopts arc transition, the cylindrical of valve stem 2 end be connected with air valve cervix 3 is provided with the helical blade 4 of four left-handed or dextrorotation, helical blade 4 is evenly distributed on the cylindrical of valve stem 2, the helix angle of helical blade 4 is 30 degree, the length L of helical blade 4 is 20mm, and the height h of helical blade 4 is 3.5mm.
Claims (2)
1. the engine valve with helical blade, comprise Valve Disc and valve stem, Valve Disc is provided with sealing cone, the air valve cervix that Valve Disc is connected with valve stem adopts arc transition, it is characterized in that: the cylindrical of the valve end be connected with air valve cervix is provided with the helical blade of three ~ six left-handed or dextrorotation, and helical blade is evenly distributed on the cylindrical of valve stem.
2. a kind of engine valve with helical blade according to claim 1, is characterized in that: the helix angle of helical blade is 20 ~ 35 degree, and the length L of helical blade is 18 ~ 25mm, and the height h of helical blade is 2.5 ~ 4.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420558083.1U CN204200295U (en) | 2014-09-26 | 2014-09-26 | With the engine valve of helical blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420558083.1U CN204200295U (en) | 2014-09-26 | 2014-09-26 | With the engine valve of helical blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204200295U true CN204200295U (en) | 2015-03-11 |
Family
ID=52658262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420558083.1U Active CN204200295U (en) | 2014-09-26 | 2014-09-26 | With the engine valve of helical blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204200295U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234774A (en) * | 2014-09-26 | 2014-12-24 | 湖南天雁机械有限责任公司 | Engine valve with screw blades |
| CN105240078A (en) * | 2015-10-30 | 2016-01-13 | 重庆奇甫机械有限责任公司 | Screw flow guide air valve charged with sodium |
| CN105240080A (en) * | 2015-10-30 | 2016-01-13 | 重庆奇甫机械有限责任公司 | Double-cavity sodium-filled valve with spiral blade |
| CN110094259A (en) * | 2019-05-13 | 2019-08-06 | 哈尔滨工程大学 | A kind of diesel engine intake valve enhancing intake swirl |
| CN110905623A (en) * | 2019-12-09 | 2020-03-24 | 潍柴动力股份有限公司 | Valve mechanism and engine |
-
2014
- 2014-09-26 CN CN201420558083.1U patent/CN204200295U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234774A (en) * | 2014-09-26 | 2014-12-24 | 湖南天雁机械有限责任公司 | Engine valve with screw blades |
| CN105240078A (en) * | 2015-10-30 | 2016-01-13 | 重庆奇甫机械有限责任公司 | Screw flow guide air valve charged with sodium |
| CN105240080A (en) * | 2015-10-30 | 2016-01-13 | 重庆奇甫机械有限责任公司 | Double-cavity sodium-filled valve with spiral blade |
| CN110094259A (en) * | 2019-05-13 | 2019-08-06 | 哈尔滨工程大学 | A kind of diesel engine intake valve enhancing intake swirl |
| CN110905623A (en) * | 2019-12-09 | 2020-03-24 | 潍柴动力股份有限公司 | Valve mechanism and engine |
| CN110905623B (en) * | 2019-12-09 | 2021-03-16 | 潍柴动力股份有限公司 | Valve mechanism and engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |