Patent · US Active

Piston of an internal combustion engine

US9476381B2 · kind B2 · utility

9Cited by

28References

20Claims

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 25, 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 for an internal combustion engine is disclosed. The piston may have a piston skirt with a center axis. The piston may also have a piston crown disposed adjacent a top of the piston skirt. The piston crown may have a diameter D. The piston crown may have a piston crown margin of width b extending in a circumferential direction. The piston crown may also have a piston trough with a depth t. The piston trough may have a piston trough wall with a base diameter. The piston trough may also have at least one recess with a height h. The height h parallel to the direction of the center axis may satisfy the following requirement: 0.2 t<=h<=t.

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