公开(公告)号：US20180100466A1

公开(公告)日：2018-04-12

申请号：US15290564

申请日：2016-10-11

Applicant: Caterpillar Inc.

Inventor： Brandon Lee Bowditch ,  Adwait Vilas Joshi ,  David Andrew Pierpont ,  Kalyana Chakravarthy Vutukuri ,  Abhijitsinha Dilipsinha Pawar

IPC: F02F3/26 ,  F02F1/24

CPC classification number: F02F3/26 ,  F02B23/06 ,  F02B23/0672 ,  F02B23/0693 ,  F02B23/0696 ,  F02F1/242

Abstract: A piston for an engine may include a piston body. The piston body may include a piston crown disposed symmetrically about a central longitudinal axis of the piston. A combustion bowl may be recessed into the piston body and may be offset axially inwardly with respect to the piston crown. A central bowl apex may protrude axially from the combustion bowl and may be offset axially inwardly with respect to the piston crown. A first bowl apex may protrude axially from the combustion bowl and may be disposed radially inwardly with respect to the piston crown. A second bowl apex may protrude axially from the combustion bowl and may be disposed radially inwardly with respect to the first bowl apex and may be radially between the first bowl apex and the central bowl apex. The second bowl apex may be offset axially inwardly with respect to the central bowl apex.

公开(公告)号：US10113503B2

公开(公告)日：2018-10-30

申请号：US15290564

申请日：2016-10-11

Applicant: Caterpillar Inc.

Inventor： Brandon Lee Bowditch ,  Adwait Vilas Joshi ,  David Andrew Pierpont ,  Kalyana Chakravarthy Vutukuri ,  Abhijitsinha Dilipsinha Pawar

IPC: F02F3/26 ,  F02F1/24

Abstract: A piston for an engine may include a piston body. The piston body may include a piston crown disposed symmetrically about a central longitudinal axis of the piston. A combustion bowl may be recessed into the piston body and may be offset axially inwardly with respect to the piston crown. A central bowl apex may protrude axially from the combustion bowl and may be offset axially inwardly with respect to the piston crown. A first bowl apex may protrude axially from the combustion bowl and may be disposed radially inwardly with respect to the piston crown. A second bowl apex may protrude axially from the combustion bowl and may be disposed radially inwardly with respect to the first bowl apex and may be radially between the first bowl apex and the central bowl apex. The second bowl apex may be offset axially inwardly with respect to the central bowl apex.