CN1134383A - Internal propeller - Google Patents
Internal propeller Download PDFInfo
- Publication number
- CN1134383A CN1134383A CN 95104172 CN95104172A CN1134383A CN 1134383 A CN1134383 A CN 1134383A CN 95104172 CN95104172 CN 95104172 CN 95104172 A CN95104172 A CN 95104172A CN 1134383 A CN1134383 A CN 1134383A
- Authority
- CN
- China
- Prior art keywords
- blade
- propeller
- guide pipe
- hub
- rotary guide
- 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.)
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Internal propeller is a propelling device of medium carrier. Its blade has area distributed along the largest and larger rotating radius and is divided into two, front and back, coils arranged parallelly on the propeller hub with the blade root being fixed on inner wall of rotary duct, the blade tip being tangential to propeller hub and the propeller hub and the blade being inside rotary duct. With high thrust efficiency, the said internal propeller is suitable for naval vessels and aircraft with propeller.
Description
The present invention relates to a kind of medium carrier propeller plant, particularly relate to naval vessel and properller propelling unit.
Traditional screw propeller all is that blade is fixed on the propeller hub at present, and radially overhanging screw shaped external spiral oar.Its architectural feature is that blade is a primary structure member independently, is to guarantee blade intensity, and blade has very heavy gauge, and blade area is distributed in the blade tip place seldom, and leaf waist place is fertile, and blade face, blade root place is very wide, and this leaf efficient is lower; Simultaneously traditional blade is distributed in the oar dish usually, and disk ratio is very big, circumferentially, radially, thickness loss is serious, makes existing propeller propulsive efficiency only between 0.3～0.65.
The purpose of this invention is to provide a kind of internal propeller, this oar can reduce significantly screw propeller circumferentially, radially, leaf section thickness loss, reduce propeller-blade area, improve the screw propeller conversion efficiency, thereby increase substantially with the screw propeller speed of the naval vessel and the aircraft that are propelling unit.
The object of the present invention is achieved like this: will be lower than traditional blade radial height, thickness is little, blade area is fixed on the inwall of rotary guide pipe along the novel blade that maximum or big radius of rotation distributes, and the total number of sheets of blade is divided into two dishes, space out is fixed on the inwall of same rotary guide pipe, so just obtains the internal propeller agent structure of main frame face ratio, double plate face.The vertically hung scroll that stretches out with blade tip is fixed to the screw propeller agent structure on traditional propeller hub axle then, and obtaining side-looking is double plate, vertically hung scroll formula internal propeller propelling unit, is internal propeller.Concrete structure of the present invention is such: along traditional blade tip rotary guide pipe 1 is set, strengthens the blade tip area distributions, form novel blade blade root 2, and be fixed on the inwall of rotary guide pipe 1.Blade area in the about 1/2R of traditional blade (R the is a propeller radius) scope rooted out and fine away last leafly, obtain breaking away from the leaf waist 3 and the blade tip 4 of the novel blade of former propeller hub.So just obtain blade and be fixed on rotary guide pipe 1 inwall, the internal propeller blade that blade root 2 is all opposite with traditional blade with the position of blade tip 4.The total number of sheets of blade is divided into shroud blade A1, hub disk blade A2 two dishes, on orthographic drawing, is in staggered distribution.Two cards are at axial withdrawal spacing L and be fixed on the inwall of same rotary guide pipe 1, obtain double plate face internal propeller agent structure.By the helical surface vertically hung scroll 5 that 4 fairing of blade blade tip are stretched out, form axial triangular frame structure with propeller hub 6.The vertically hung scroll 5 space out L that shroud A1, hub disk A2 double plate blade blade tip 4 stretch out are fixed on the propeller hub 6.Spacing L is according to internal propeller calculation of strength value, and general L value is little, and the discharge current of shroud blade A1 can not influence the work efficiency of blade A2.Vertically hung scroll formula leaf and root structure has sufficient intensity because the fixing and employing double plate blade of rotary guide pipe 1, propeller hub 6 is arranged.Certainly, the internal propeller blade also can adopt the single-deck structure.The present invention can use metal or plastics manufacturings such as iron, copper, aluminium, must use the high-strength alloy manufacturing for high-power internal propeller.Advantage of the present invention is: owing to blade height, thickness, blade area all reduce about 50%, so reduced significantly circumferentially, radially, thickness loss, make efficient of the present invention reach more than 90%, can increase substantially the speed of Modern Ships and propeller aeroplane; Because internal propeller is the unitized construction of blade and rotary guide pipe,, has reduced the traditional propeller disk ratio, thereby improved propulsion coefficient of the present invention so eliminated the blade tip loss of conventional helical blade; And blade is among the protection of rotary guide pipe.Owing to adopted the unitized construction of double plate blade and conduit and the unitized construction of double plate blade blade tip vertically hung scroll and propeller hub, make compact conformation of the present invention, member is firm, has reduced the vibration and the noise of traditional propeller, has solved the fixing and transmission problem of internal propeller on traditional oar axle dexterously.When making air screw, except above-mentioned advantage, can also overcome near the resistance that the discharge current of little radius of rotation scope causes the conventional air screw propeller blade root on body, hub body with internal propeller; On the low-grade runway that has foreign material as grass, leaf, sand and dust, take off and land, can not evoke too big dust; Herd aircraft for agricultural and can also can not damage internal propeller along the treetop low-latitude flying.With the large-scale passenger steamer Dongfanghong 11 type screw propellers in the Changjiang river is example, and former rotating speed, pitch, main engine power are constant; Former diameter of propeller is the diameter of rotary guide pipe 1 of the present invention; Former number of blade is 4 leaves, and the present invention is every dish 3 leaves totally 6 leaves; Former to face total projection blade area be 2.1129 sq ms, and the present invention reduces to 1.56 sq ms; Blade height, thickness, disk ratio the present invention reduce more than 50%.Former propulsion coefficient is 0.57, and the present invention is 0.94, improves 64.9%; The effective tractive power of former two oars is 1323 kilowatts altogether, and the present invention is 2625 kilowatts, improves 98%; Emergency speed can by former per hour 28.7 kilometers bring up to per hour 35 kilometers, improve 21.95%.The present invention can be used as the propelling unit of naval vessel, torpedo, aircraft, is particularly useful for light-draft boats and ships, also is applicable to various pump classes.
Fig. 1 is an internal propeller blade front elevation
Fig. 2 is an internal propeller blade structural representation
Fig. 3 is the internal propeller front elevation
Fig. 4 is the internal propeller lateral plan
The present invention is described in further detail below in conjunction with accompanying drawing:
Along traditional blade tip rotary guide pipe 1 is set, strengthens the blade tip area distributions, form novel blade blade root 2, and be fixed on the inwall of rotary guide pipe 1.Blade area in the about 1/2R scope of traditional blade rooted out and fine away last leafly, obtain breaking away from the leaf waist 3 and the blade tip 4 of the novel blade of former propeller hub.So just obtain blade and be fixed on rotary guide pipe 1 inwall, the internal propeller blade that blade root 2 is all opposite with traditional blade with the position of blade tip 4.The total number of sheets of blade is divided into shroud blade A1, hub disk blade A2 two dishes, on orthographic drawing, is in staggered distribution.Two cards are at axial withdrawal spacing L and be fixed on the inwall of same rotary guide pipe 1, obtain double plate face internal propeller agent structure.By the helical surface vertically hung scroll 5 that 4 fairing of blade blade tip are stretched out, form axial triangular frame structure with propeller hub 6.The vertically hung scroll 5 space out L that shroud A1, hub disk A2 double plate blade blade tip 4 stretch out are fixed on the propeller hub 6.Spacing L is according to internal propeller calculation of strength value, and general L value is little, and the discharge current of shroud blade A1 can not influence the work efficiency of hub disk blade A2.Vertically hung scroll formula leaf and root structure has sufficient intensity because the fixing and employing double plate blade of rotary guide pipe 1, propeller hub 6 is arranged.
Claims (3)
1. propeller plant, comprise rotary guide pipe [1], propeller hub [6] and the blade that constitutes by blade root [2], leaf waist [3], blade tip [4], it is characterized in that vertically hung scroll [5] and propeller hub [6] that blade tip [4] stretches out are fixing, blade root [2] is fixed with the inwall of rotary guide pipe [1], and propeller hub [6] and blade are among the rotary guide pipe [1].
2. propeller plant according to claim 1, the blade root [2], leaf waist [3], the residing position of blade tip [4] that it is characterized in that blade are opposite with traditional blade, and the blade face is the part of inner helical surface, the blade face area distributes on maximum or big radius of rotation, does not distribute in little radius of rotation scope.
3. according to claim 1 and 2 described propeller plants, it is characterized in that blade is divided into shroud blade A1, hub disk blade A2, on orthographic drawing, be in staggered distribution at axial withdrawal spacing L, be fixed to rotary guide pipe (1) by blade root 2 and go up and be fixed on the propeller hub (6) by vertically hung scroll (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95104172 CN1134383A (en) | 1995-04-28 | 1995-04-28 | Internal propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95104172 CN1134383A (en) | 1995-04-28 | 1995-04-28 | Internal propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1134383A true CN1134383A (en) | 1996-10-30 |
Family
ID=5075030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95104172 Pending CN1134383A (en) | 1995-04-28 | 1995-04-28 | Internal propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1134383A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107016921A (en) * | 2016-01-27 | 2017-08-04 | 欧阳彪龙 | Spider vane propeller mathematical modeling |
| CN108082426A (en) * | 2017-12-14 | 2018-05-29 | 陈良奎 | Safety and energy-saving propeller |
-
1995
- 1995-04-28 CN CN 95104172 patent/CN1134383A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107016921A (en) * | 2016-01-27 | 2017-08-04 | 欧阳彪龙 | Spider vane propeller mathematical modeling |
| CN108082426A (en) * | 2017-12-14 | 2018-05-29 | 陈良奎 | Safety and energy-saving propeller |
| CN108082426B (en) * | 2017-12-14 | 2019-12-10 | 成都市陈式船舶研发有限公司 | Safe energy-saving propeller |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |