JPS63189796U - - Google Patents
Info
- Publication number
- JPS63189796U JPS63189796U JP7884987U JP7884987U JPS63189796U JP S63189796 U JPS63189796 U JP S63189796U JP 7884987 U JP7884987 U JP 7884987U JP 7884987 U JP7884987 U JP 7884987U JP S63189796 U JPS63189796 U JP S63189796U
- Authority
- JP
- Japan
- Prior art keywords
- propeller
- diameter
- pitch angle
- wake
- rear propeller
- 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.)
- Pending
Links
- 230000007423 decrease Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例を示す船尾部側面図
、第２図は後方プロペラのピツチ角曲線図、第３
図および第４図は従来例を示す。
図中、１……スターンフレーム、２……ボス部
、３……舵、４……外軸、５……内軸、６……前
方プロペラ、７……後方プロペラ、８……外翼部
、９……内翼部、ａ……交叉する点、ｂ……プロ
ペラ中心線、ｃ……後流、ｄ……前方プロペラの
ピツチ角、ｅ……後方プロペラのピツチ角、ｆ…
…前方プロペラ後流の内側、ｇ……前方プロペラ
後流の外側、である。
Figure 1 is a side view of the stern section showing one embodiment of the present invention, Figure 2 is a pitch angle curve diagram of the rear propeller, and Figure 3 is a diagram of the pitch angle curve of the rear propeller.
The figure and FIG. 4 show a conventional example. In the figure, 1... Stern frame, 2... Boss part, 3... Rudder, 4... Outer shaft, 5... Inner shaft, 6... Front propeller, 7... Rear propeller, 8... Outer wing part. , 9... Inner wing part, a... Intersecting point, b... Propeller center line, c... Wake, d... Pitch angle of front propeller, e... Pitch angle of rear propeller, f...
...inside of the wake of the front propeller, g...outside of the wake of the front propeller.
Claims (1)
回転し、かつ後方プロペラのピツチ角が前方プロ
ペラのピツチ角より大きい舶用二重反転プロペラ
において、後方プロペラの直径は前方プロペラの
後流の後方プロペラ部における直径より大きくな
つており、かつ、後方プロペラのピツチ角は後流
直径より外側部分で外方に向つて滑らかに減少し
ていることを特徴とする舶用二重反転プロペラ。 In counter-rotating marine propellers, which are arranged on the same axis and rotate in opposite directions, and the pitch angle of the rear propeller is larger than the pitch angle of the front propeller, the diameter of the rear propeller is the diameter of the rear propeller behind the wake of the front propeller. A counter-rotating propeller for marine use, which is larger than the diameter at the propeller portion, and the pitch angle of the rear propeller decreases smoothly outward in a portion outside the wake diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7884987U JPS63189796U (en) | 1987-05-27 | 1987-05-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7884987U JPS63189796U (en) | 1987-05-27 | 1987-05-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63189796U true JPS63189796U (en) | 1988-12-06 |
Family
ID=30928173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7884987U Pending JPS63189796U (en) | 1987-05-27 | 1987-05-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63189796U (en) |
-
1987
- 1987-05-27 JP JP7884987U patent/JPS63189796U/ja active Pending