Patent · US Active

Piston bowl geometries for internal combustion engines

US11293374B2 · kind B2 · utility

1Cited by

3References

10Claims

0Family size

Assignee

FEV Group GmbH · DE

Inventors

Satyum Joshi · Auburn Hills, US
Erik Koehler · Newport Beach, US
Mufaddel Z. Dahodwala · Beverly Hills, US
Michael Franke · Dresden, DE
Nitisha Ahuja · Auburn Hills, US

Key dates

Filing date	Jul 31, 2020
Grant date	Apr 5, 2022
Priority date	—
Expiry date	Jul 31, 2040

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 provided. The piston includes a piston bowl defined by a floor surface and a rim wall extending from an outer periphery of the floor surface in a system vertical direction to circumferential surround the floor surface. The piston bowl includes a center portion that extends above the floor surface. A plurality of protrusions extend radially from the center portion and from the floor surface and are spaced apart such that a spray guide is formed between each of the spaced apart plurality of protrusions. Each of the plurality of protrusions and spray guides are tapered so to terminate prior to the rim wall such that a continuous radius portion is formed from a portion of the rim wall and a portion of the floor surface beyond a respective terminating portion of each of the plurality of protrusions and spray guides.

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