Patent ID: 11885246
Assignee: CATERPILLAR INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 13:
14. The engine valve of claim 13 wherein the combustion surface further comprises a first convex blend connecting the outer lip surface to the first planar surface, a first concave blend connecting the first planar surface to the first convex arcuate surface, a second concave blend extending radially inwardly from the first convex arcuate surface, a first conical surface extending radially inwardly from the second concave blend to a second convex blend, and a first concave arcuate surface extending from the second convex blend toward the axis of revolution, forming a dimple radially centered about the axis of revolution with a deepest extremity of the dimple disposed at the axis of revolution;
the combustion surface defines an axial dimension measured from the axial extremity of the body of revolution to the deepest extremity of the dimple;
a ratio of the head diameter to the radial width of the raised ring ranges from 4.0 to 12.0; and
a ratio of the head diameter to the axial dimension ranges from 7.0 to 23.0.