Method of cooling cylinder liners in an engine
US5115771A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 29, 1991 |
| Grant date | May 26, 1992 |
| Priority date | — |
| Expiry date | Apr 29, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02F1/16
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention includes an apparatus for cooling a plurality of cylinder liners in an engine wherein a thermal insulating layer comprising an annular groove is formed in a region in the vicinity of the upper part of each cylinder liner in the cylinder block while surrounding the upper part of the cylinder liner in a slightly spaced relationship relative to the cylinder liner in order to positively elevate the temperature on the wall surface of the cylinder liner at the upper part of the same and moreover a water jacket is formed in the cylinder block so as to allow coolant to flow from the lower part toward the upper part of the cylinder liner, the sectional area of the water jacket being gradually reduced from the lower part toward the central part of the cylinder liner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.