CN205131609U - Oval tubular marine propulsor - Google Patents
Oval tubular marine propulsor Download PDFInfo
- Publication number
- CN205131609U CN205131609U CN201520852951.1U CN201520852951U CN205131609U CN 205131609 U CN205131609 U CN 205131609U CN 201520852951 U CN201520852951 U CN 201520852951U CN 205131609 U CN205131609 U CN 205131609U
- Authority
- CN
- China
- Prior art keywords
- screw
- oval
- propeller
- oval tubular
- tube
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model provides an oval tubular marine propulsor, relates to a marine propulsor, including engine, screw and ellipse circular -tube -shaped outer shell. The engine passes through the outside of support mounting at ellipse circular -tube -shaped outer shell. The output shaft of engine links to each other with the screw. The rotation plane of screw becomes an acute angle with ellipse circular -tube -shaped outer shell's opening direction. Ellipse circular -tube -shaped outer shell's cross section is oval, and the diameter of screw is a bit larger tham to the length of elliptical major axis, and diameter of propeller is a bit larger tham to ellipse circular -tube -shaped outer shell's length. The screw is in inside the ellipse circular -tube -shaped outer shell completely. The screw can be nimblely at ellipse circular -tube -shaped outer shell internal rotation. Compare with traditional marine propulsor, when the flow is the same the utility model discloses the upstream face of propeller is long -pending much little, and efficient, and the resistance is little.
Description
Technical field
A kind of oval tubular marine propeller, relates to a kind of marine propeller, particularly relates to a kind of propeller vessel ship propeller.
Background technology
Traditional band cylinder propeller is columnar, and the plane of rotation of its blade is vertical with working direction, and water side is comparatively large, and resistance is comparatively large, and especially during high speed, resistance is larger.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, the tubular marine propeller of ellipse providing a kind of water side less compared with slight drag.
Technical scheme of the present invention is: a kind of oval tubular marine propeller, comprises driving engine, screw propeller and oval tubular shell.Driving engine is by the outside of support installing at oval tubular shell.The output shaft of driving engine is connected with screw propeller.The plane of rotation of screw propeller and the opening direction of oval tubular shell in an acute angle.The transversal surface of oval tubular shell is oval, and the length of oval major axis is a bit larger tham the diameter of screw propeller, and the length of oval tubular shell is a bit larger tham diameter of propeller.Screw propeller is in oval tubular enclosure completely.Screw propeller can rotate neatly in oval tubular shell.
For raising the efficiency, the minimum clearance between the tip of the blade of screw propeller and the inwall of oval tubular shell is less than 5mm.Formed by the rotational plane of screw propeller and the opening direction of oval tubular shell, acute angle is not more than 45 °.
The tubular marine propeller of a kind of ellipse of the present invention is work like this, driven by engine propeller rotational, and then screw propeller is extruded in oval for the water inspiration in front tubular shell from the rear of oval tubular shell.Because the gap of the tip of the blade of screw propeller and the inwall of oval tubular shell is less, and the opening direction of the rotational plane of screw propeller and oval tubular shell is in an acute angle, and this propeller efficiency is higher.
The advantage of the tubular marine propeller of a kind of ellipse of the present invention is: compared with traditional marine propeller, and when flow is identical, the angle of rake water side of the present invention is much smaller, and efficiency is higher than traditional propeller; When the most outstanding advantage of propelling unit of the present invention is high speed, resistance is little.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the tubular marine propeller of a kind of ellipse of the present invention, and Fig. 2 is the birds-eye view of Fig. 1.In figure: 1 is driving engine, 11 is the output shaft of driving engine, and 2 is screw propeller, the path of motion at the tip of 21 expression screw propellers, and 3 is oval tubular shell, and 4 represent streamlines; α represents angle formed by the plane of rotation of screw propeller and the opening direction of oval tubular shell; In Fig. 1, upper left hollow arrow represents described angle of rake working direction.
Detailed description of the invention
Be illustrated the present invention below in conjunction with accompanying drawing: with reference to accompanying drawing, a kind of oval tubular marine propeller, comprises driving engine 1, screw propeller 2 and oval tubular shell 3.Driving engine 1 is by the outside of support installing at oval tubular shell 3.The output shaft 11 of driving engine is connected with screw propeller 2.The plane of rotation of screw propeller 2 becomes one 40 ° of acute angles with the opening direction of oval tubular shell 3.The transversal surface of oval tubular shell 3 is oval, and the length of oval major axis is a bit larger tham the diameter of screw propeller 2, and the length of oval tubular shell 3 is a bit larger tham screw propeller 2 diameter.It is inner that screw propeller 2 is in oval tubular shell 3 completely.Screw propeller 2 can rotate neatly in oval tubular shell 3.Minimum clearance between the tip of the blade of screw propeller 2 and the inwall of oval tubular shell 3 is 3mm.
This propelling unit is work like this: driving engine 1 carrying screws 2 rotates, and then screw propeller 2 is extruded in oval for the water inspiration in front tubular shell 3 from the rear of oval tubular shell 3.Because the gap between the tip of the blade of screw propeller 2 and the inwall of oval tubular shell 3 is little, and the rotational plane of screw propeller 2 becomes 40 ° of angles with the opening direction of oval tubular shell 3, and this propeller efficiency is higher.Because screw propeller 2 is tilting, water side is little, and resistance is little.
Claims (3)
1. the tubular marine propeller of ellipse, is characterized in that: comprise driving engine (1), screw propeller (2) and oval tubular shell (3); The output shaft (11) of driving engine is connected with screw propeller (2); The rotational plane of screw propeller (2) and the opening direction α in an acute angle of oval tubular shell (3); The transversal surface of oval tubular shell (3) is oval, and the length of oval major axis is a bit larger tham the diameter of screw propeller (2), and the length of oval tubular shell (3) is a bit larger tham screw propeller (2) diameter; It is inner that screw propeller (2) is in oval tubular shell (3) completely; Screw propeller (2) can rotate neatly in oval tubular shell (3).
2. the oval tubular marine propeller of one according to claim 1, is characterized in that, the minimum clearance between the tip of the blade of screw propeller (2) and the inwall of oval tubular shell (3) is less than 5mm.
3. the oval tubular marine propeller of one according to claim 1, is characterized in that, formed by the rotational plane of screw propeller (2) and the opening direction of oval tubular shell (3), sharp angle α is not more than 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520852951.1U CN205131609U (en) | 2015-10-30 | 2015-10-30 | Oval tubular marine propulsor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520852951.1U CN205131609U (en) | 2015-10-30 | 2015-10-30 | Oval tubular marine propulsor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205131609U true CN205131609U (en) | 2016-04-06 |
Family
ID=55617426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520852951.1U Withdrawn - After Issue CN205131609U (en) | 2015-10-30 | 2015-10-30 | Oval tubular marine propulsor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205131609U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105217001A (en) * | 2015-10-30 | 2016-01-06 | 佛山市神风航空科技有限公司 | A kind of oval tubular marine propeller |
-
2015
- 2015-10-30 CN CN201520852951.1U patent/CN205131609U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105217001A (en) * | 2015-10-30 | 2016-01-06 | 佛山市神风航空科技有限公司 | A kind of oval tubular marine propeller |
| CN105217001B (en) * | 2015-10-30 | 2018-12-04 | 孙永锋 | A kind of tubular marine propeller of ellipse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160406 Effective date of abandoning: 20181204 |
|
| AV01 | Patent right actively abandoned |