US 12,435,679 B2
Embedded piston structures
Roland Ennsmann, Gunskirchen (AT)
Assigned to BRP-Rotax GmbH & Co. KG, Gunskirchen (AT)
Filed by BRP-Rotax GmbH & Co. KG, Gunskirchen (AT)
Filed on Feb. 7, 2024, as Appl. No. 18/435,624.
Claims priority of provisional application 63/483,643, filed on Feb. 7, 2023.
Prior Publication US 2024/0263598 A1, Aug. 8, 2024
Int. Cl. F02F 3/00 (2006.01); F02F 3/28 (2006.01)
CPC F02F 3/0084 (2013.01) [F02F 3/285 (2013.01); F05C 2201/021 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A piston, comprising:
a crown;
an insert having an outer member comprising a channel through a thickness of the outer member, an inner member, and at least one interconnection between the outer member and the inner member; and
a skirt integrally formed with the crown through the insert,
wherein the crown and skirt are made from a type of aluminum and the insert is made from a material other than aluminum.