Cooling water pump for an internal combustion engine
US6270312A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 28, 2000 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Apr 28, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/6022
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a cooling water pump for an internal combustion engine with a housing provided with a bearing designed to support a pump shaft and with a sealing element devised to seal the bearing against a working area containing the cooling agent as well as with a leakage chamber receiving the cooling agent that oozes through the sealing element, wherein the leakage chamber is arranged in a recess of the housing and is provided with an opening to the outside, said opening being partially closed by a locking device. A particularly simple way of production is achieved by having the opening closed by a foil, preferably by a metal foil, deposited on a flange facing which is flush with a front surface of the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.