Patent · US Active

Method for operating an internal combustion engine with parallel supercharging and with an activatable turbine, and internal combustion engine for carrying out a method of said type

US10428728B2 · kind B2 · utility

0Cited by

1References

19Claims

0Family size

Assignee

Ford Global Technologies, LLC · US

Inventors

Harald Stoffels · Cologne, DE
Ludwig Stump · Cologne, DE
Klemens Grieser · Langenfeld, DE
Jens Wojahn · Bensberg, DE
Franz J. Brinkmann · Hürth, DE

Key dates

Filing date	Feb 2, 2017
Grant date	Oct 1, 2019
Priority date	—
Expiry date	Oct 12, 2037

Classification

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

Abstract

Embodiments for an engine coupled to a first turbocharger and a second turbocharger are provided. One example includes responsive to a first condition, deactivating a first turbine of the first turbocharger and meeting a boost demand via operation of the second turbocharger, and responsive to deactivating the first turbine, increasing a pressure at a compressor-side end of a bearing arrangement of a shaft of the first turbocharger. In this way, oil leakage from the bearing arrangement may be reduced.

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