Water pump for internal combustion engines
US5795137A · kind A · utility
11Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1996 |
| Grant date | Aug 18, 1998 |
| Priority date | — |
| Expiry date | Apr 8, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01P1/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a water pump for an internal combustion engine, capable of effectively preventing the entry of dust into a bearing for an impeller shaft, and of providing a simply constructed and small-sized dustproof function. To this end, a fan (32) is mounted on a portion of an impeller shaft (18) which is positioned within a cup-shaped hood (30), and the inflow of dust into the bearings (22F, 22R) is prevented by the fan (32). The hood (30) is provided with blowout holes (44) in the portions thereof which are opposed to the outer circumference of the fan (32).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.