Patent · US Active

Piston, in particular for an HPDI diesel/gas internal combustion engine

US10890136B2 · kind B2 · utility

0Cited by

3References

17Claims

0Family size

Assignee

MAN Truck &Bus AG · DE

Inventors

Bruno Barciela Díaz-Blanco · Nuremberg, DE
Dirk Peter Weberskirch · Fürth, DE
Andreas Sommermann · Heilsbronn, DE
Marcus Stein · Dresden, DE
Tim Dressel · Nuremberg, DE

Key dates

Filing date	Nov 20, 2018
Grant date	Jan 12, 2021
Priority date	—
Expiry date	Nov 20, 2038

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/30
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A piston for an internal combustion engine, such as a high-pressure direct injection (HPDI) diesel/gas internal combustion engine. The piston has a piston recess, in particular an omega piston recess. The piston has a piston crown face which is provided so as to extend annularly about a centre axis (M) of the piston. The piston has a plurality of piston stages, which are provided so as to extend annularly about the centre axis (M) and which are arranged between the piston crown face and the piston recess. The piston geometry can lead to an increase of the degree of engine efficiency with a simultaneous reduction of the exhaust emissions.

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