公开(公告)号：US20240066644A1

公开(公告)日：2024-02-29

申请号：US18387952

申请日：2023-11-08

Applicant: AWA FORGED COMPOSITES, LLC

Inventor： Bryan Gill ,  Brennan C. Lieu ,  Aaron Guo

IPC: B23P15/10 ,  F02F3/00

CPC classification number: B23P15/10 ,  F02F3/0023 ,  F02F3/0084 ,  B23P2700/04 ,  F02F2200/06 ,  F05C2201/021 ,  F05C2201/0406 ,  F05C2201/0409 ,  F05C2201/0412 ,  F05C2201/0421 ,  F05C2201/0424 ,  F05C2201/0436 ,  F05C2201/0466 ,  F05C2201/0472 ,  F05C2201/0481 ,  F05C2201/0496 ,  F05C2203/0808 ,  F05C2203/0886 ,  F05C2225/00

Abstract: A method is provided for designing and producing fiber-reinforced polymer (FRP) pistons. Pistons made with FRP have a lower mass than prior art metal pistons conferring advantageous engine efficiency and stability. FRP pistons also increase the thermal efficiency of engines by having a lower thermal conductivity, with tighter piston-to-bore clearance, and/increased air-fuel ratio than pistons of metal. The technical parameters of the piston are identified, and a piston body blank is produced. The blank is then machined, a bearing surface for the pin bore is created, the piston blank is optionally coated, is optionally subjected to Heavy Metal Ion Implantation (HMII) treatment and is subjected to sodium silicate impregnation to produce the final pistons.