Patent ID: 11946434
Assignee: INNIO JENBACHER GMBH & CO OG
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC E  F

Claim 19:
20. A system, comprising:
a piston assembly, comprising:
a crown portion, comprising:
a crown;
an outer wall coupled to the crown, wherein the outer wall extends circumferentially about a central axis of the piston assembly;
a first inner wall disposed inside of the outer wall, wherein the first inner wall extends circumferentially about the central axis; and
a first fluid chamber disposed radially between the outer wall and the first inner wall, wherein the first fluid chamber extends circumferentially about the central axis, an opening extends into the first fluid chamber in an axial inward direction, and the opening extends circumferentially about the central axis; and
an angled wall insert disposed in the opening in the crown portion, wherein the angled wall insert extends circumferentially about the central axis, and the first fluid chamber is disposed axially between the crown and the angled wall insert;
wherein the angled wall insert comprises an angled annular plate, wherein the angled annular plate is oriented at an acute angle relative to the central axis; wherein the angled annular plate comprises an outer annular portion and an inner annular portion, wherein the angled annular plate is at least partially retained in the piston assembly via engagement between the outer annular portion and a first mating annular portion along an inner surface of the outer wall, engagement between the inner annular portion and a second mating annular portion along an outer surface of a first annular wall, or a combination thereof; wherein the angled annular plate is at least partially retained in the piston assembly via a first welded joint between the outer annular portion and the inner surface, a second welded joint between the inner annular portion and the outer surface, or a combination thereof.