JPH0319796U - - Google Patents
Info
- Publication number
- JPH0319796U JPH0319796U JP8109289U JP8109289U JPH0319796U JP H0319796 U JPH0319796 U JP H0319796U JP 8109289 U JP8109289 U JP 8109289U JP 8109289 U JP8109289 U JP 8109289U JP H0319796 U JPH0319796 U JP H0319796U
- Authority
- JP
- Japan
- Prior art keywords
- jet pump
- opening
- pump cover
- boat
- personal watercraft
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Cleaning Or Clearing Of The Surface Of Open Water (AREA)
Description
第１図は本考案による小型滑走艇のジエツトポ
ンプカバーの一実施例を示す斜視図、第２図は第
１図の中央縦断面図、第３図のＡ，Ｂ，Ｃはそれ
ぞれ本考案によるジエツトポンプカバーの各種実
施例を示す縦断面図、第４図は本考案によるジエ
ツトポンプカバーのさらに別の実施例を示す斜視
図、第５図は本考案によるジエツトポンプカバー
を備えた小型滑走艇のジエツトポンプを示す模式
的縦断面図、第６図は本考案によるジエツトポン
プカバーを備えた小型滑走艇の模式的縦断面図、
第７図は第６図の斜視図、第８図は第６図の平面
図である。
１……船体、１０……エンジン、１２……ジエ
ツトポンプ（推進機）、１４……噴射ノズル、１
７……船底、４１……凹部、４２……ジエツトポ
ンプカバー、４７……開口、５１……傾斜面、５
２……後端段差部。
Fig. 1 is a perspective view showing an embodiment of the jet pump cover for a small personal watercraft according to the present invention, Fig. 2 is a central vertical cross-sectional view of Fig. 1, and A, B, and C in Fig. 3 are each according to the present invention. Fig. 4 is a perspective view showing still another embodiment of the jet pump cover according to the present invention, and Fig. 5 is a longitudinal sectional view showing various embodiments of the jet pump cover according to the present invention. FIG. 6 is a schematic vertical sectional view of a small personal watercraft equipped with a jet pump cover according to the present invention;
7 is a perspective view of FIG. 6, and FIG. 8 is a plan view of FIG. 6. 1... Hull, 10... Engine, 12... Jet pump (propulsion machine), 14... Injection nozzle, 1
7...Bottom, 41...Recess, 42...Jet pump cover, 47...Opening, 51...Slanted surface, 5
2... Rear end step part.
Claims (1)
装着し、前記凹部の下側を船底と略同じ面を形成
するジエツトポンプカバーで覆う構成を有する小
型滑走艇において、前記カバーに、前記凹部の内
外を連通する開口を形成するとともに、該開口の
前側に走航時の水流が剥離する方向の傾斜面とそ
の後端段差部を形成し、前記開口のまわりでの境
界層流れを減少させることを特徴とする小型滑走
艇のジエツトポンプカバー。 In a small personal watercraft, a jet pump is mounted in a recess formed at the rear of the bottom of the boat, and the lower side of the recess is covered with a jet pump cover that forms approximately the same surface as the bottom of the boat. A communicating opening is formed, and an inclined surface and a rear end step part are formed in the direction in which the water flow separates during running on the front side of the opening, thereby reducing the boundary layer flow around the opening. A jet pump cover for a small personal watercraft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8109289U JPH0539999Y2 (en) | 1989-07-10 | 1989-07-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8109289U JPH0539999Y2 (en) | 1989-07-10 | 1989-07-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0319796U true JPH0319796U (en) | 1991-02-26 |
| JPH0539999Y2 JPH0539999Y2 (en) | 1993-10-12 |
Family
ID=31626725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8109289U Expired - Lifetime JPH0539999Y2 (en) | 1989-07-10 | 1989-07-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0539999Y2 (en) |
-
1989
- 1989-07-10 JP JP8109289U patent/JPH0539999Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0539999Y2 (en) | 1993-10-12 |