Patent · US Active

Piston of an internal combustion engine

US9464593B2 · kind B2 · utility

2Cited by

28References

16Claims

0Family size

Assignee

Caterpillar Energy Solutions GmbH · DE

Inventors

Robert Böwing · Innsbruck, AT
Enrico Drehobl · Reilingen, DE
Christian Drexel · Lambsheim, DE
Manfred Rapp · Ubstadt-Weiher, DE

Key dates

Filing date	Apr 12, 2013
Grant date	Oct 11, 2016
Priority date	—
Expiry date	Jun 23, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A piston of an internal combustion engine is disclosed. The piston may have a piston skirt having a central axis. The piston may also have a piston crown delimiting the piston skirt with a diameter D adjacent a top of the piston skirt. The piston crown may have an edge of the piston crown of width b and a piston crown recess of depth t. The piston crown recess may have a piston recess wall with an opening cross section of diameter d. At least one groove with an internal diameter dn may be provided within the edge of the piston crown. The at least one groove may run in a circumferential direction relative to the central axis. The internal diameter dn may be larger than the diameter d.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.