JPS5735183A - Water pump of marine engine - Google Patents
Water pump of marine engineInfo
- Publication number
- JPS5735183A JPS5735183A JP10972780A JP10972780A JPS5735183A JP S5735183 A JPS5735183 A JP S5735183A JP 10972780 A JP10972780 A JP 10972780A JP 10972780 A JP10972780 A JP 10972780A JP S5735183 A JPS5735183 A JP S5735183A
- Authority
- JP
- Japan
- Prior art keywords
- bushing
- shaft
- key
- concave
- impeller
- 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 title abstract 3
- 241001272720 Medialuna californiensis Species 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 239000004576 sand Substances 0.000 abstract 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE: To prevent a key, transmitting the rotary force between a bushing of impeller and a pump drive shaft, from wear by such a special construction that the relative motion between the bushing and shaft is canceled.
CONSTITUTION: A pump drive shaft 14 is provided with a key seat 72 cut with a plane in parallel with the tangential and axial lines of the shaft 14, and a bushing 52 is, in its internal surface, provided with an arc-shaped concave 74 having a smaller radius than the drive shaft 14 stretched long in the axial direction. Between the key seat 72 and concave 74 is fitted a tangential key 70 long in axial direction and half-moon shaped in profile, whose radius is such as to slide on the curvature of the concave 74 closely. Accordingly, when the impeller, not illustrated, rotates, the key 70 will bite into the gap between the key seat 72 and concave 74 as a wedge to couple bushing 52 and shaft 14 firmly. Consequently, water will not flow into or out of the gap between bushing 52 and shaft 14, that is likely when impeller rotates in a conventional arrangement, and the wear owing to sand or mud included in the water can be remarkably reduced.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10972780A JPS5735183A (en) | 1980-08-08 | 1980-08-08 | Water pump of marine engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10972780A JPS5735183A (en) | 1980-08-08 | 1980-08-08 | Water pump of marine engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5735183A true JPS5735183A (en) | 1982-02-25 |
| JPS6319717B2 JPS6319717B2 (en) | 1988-04-25 |
Family
ID=14517693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10972780A Granted JPS5735183A (en) | 1980-08-08 | 1980-08-08 | Water pump of marine engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5735183A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60125718A (en) * | 1983-12-12 | 1985-07-05 | アウトボ−ド・マ−リン・コ−ポレ−シヨン | Propelling apparatus for ship and water pump therefor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2549484A (en) * | 1949-05-19 | 1951-04-17 | Elmer C Kiekhaefer | Underwater gear unit for outboard motors |
| US2883838A (en) * | 1957-10-03 | 1959-04-28 | Robert L Veitch | Coupling for shafts and the like |
-
1980
- 1980-08-08 JP JP10972780A patent/JPS5735183A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2549484A (en) * | 1949-05-19 | 1951-04-17 | Elmer C Kiekhaefer | Underwater gear unit for outboard motors |
| US2883838A (en) * | 1957-10-03 | 1959-04-28 | Robert L Veitch | Coupling for shafts and the like |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60125718A (en) * | 1983-12-12 | 1985-07-05 | アウトボ−ド・マ−リン・コ−ポレ−シヨン | Propelling apparatus for ship and water pump therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6319717B2 (en) | 1988-04-25 |
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