Cooling circuit of an internal combustion engine and method of making same
US5915346A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 8, 1997 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Jul 8, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02F2001/104
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Within the cooling circuit of an internal combustion engine, coolant ducts are connected in the cylinder head and the coolant jacket of the cylinder block with the coolant pump by coolant passages inside the cylinder block. Starting at the flange surface between the cylinder block and the cylinder head, ducts extend in the cylinder block that are connected with the main ducts of the cooling circuit and serve to supply or drain the cylinder head. These ducts are connected by cast slots that take their departure from the flange surface with the coolant jacket of the cylinder block. These cast slots permit a connection of the coolant jacket with the cooling circuit that is easy to produce without additional bores being necessary. In addition, using casting to produce the connection increases the reliability of the process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.