FIELD: mechanical engineering; diesel engines.
SUBSTANCE: cylinder head of diesel engine contains housing, intake and outlet holes with valve seats with fitted-in valves with bridge in between, nozzle cup installing the nozzle arranged in housing, and thermocompensating slots for compensating deformations at heating and cooling. Said slots are straight-line through ones, being arranged close to nozzle hole square to fire bottom. Said thermocompensating slots in normal section are rectangular, one of smaller sides of rectangle pointed to nozzle is rounded off. Depth of thermocompensating slots does not exceed 3.5-5 mm, and their width is 1 mm. Invention reduces thermofatigue stresses in bridge area by 50% and prevents accumulation of residual stresses. Implementing of process does not required complex tooling and rigging.
EFFECT: increased service life of cylinder head, reduced time taken for implementing the process.
4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| CYLINDER HEAD OF INTERNAL COMBUSTION ENGINE | 0 |
|
SU1763693A1 |
| INTERNAL COMBUSTION ENGINE CYLINDER HEAD | 0 |
|
SU1321877A1 |
| CYLINDER HEAD OF INTERNAL COMBUSTION ENGINE | 0 |
|
SU1420212A1 |
| CYLINDER HEAD OF AIR-COOLED I.C.DIESEL ENGINE | 0 |
|
SU1291715A1 |
| CYLINDER HEAD OF I.C. ENGINE WITH AIR COOLING | 0 |
|
SU964210A1 |
| HEAD OF CYLINDERS FOR DIESEL WITH LIQUID COOLING | 1992 |
|
RU2041373C1 |
| CYLINDER HEAD OF INTERNAL-COMBUSTION ENGINE | 0 |
|
SU1714179A1 |
| GAS INTERNAL COMBUSTION ENGINE WITH SPARK IGNITION CONVERTED FROM DIESEL ENGINE | 1999 |
|
RU2176737C2 |
| CYLINDER HEAD OF INTERNAL COMBUSTION ENGINE WITH LIQUID COOLING | 1992 |
|
RU2039881C1 |
| I.C. ENGINE CYLINDER CAP | 0 |
|
SU958680A1 |
