Patent · US Active

Air supply to an internal combustion engine and method and device for diagnosing an air supply to an internal combustion engine

US12221915B2 · kind B2 · utility

0Cited by

0References

14Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Benedikt Graf · Cambridge, US
Christian Disch · Wimsheim, DE
Conrad Bubeck · Eßlingen, DE
Stefan Bauer · Alzey, DE

Key dates

Filing date	Dec 12, 2023
Grant date	Feb 11, 2025
Priority date	—
Expiry date	Dec 12, 2043

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01N2900/1402
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

An air supply to an internal combustion engine, which includes at least one cylinder and a heater. A first air duct is provided for supplying air to the at least one cylinder of the internal combustion engine for operating the internal combustion engine and a second air duct is provided for supplying air to a heater for heating an exhaust system of the internal combustion engine. The first and second air ducts are connected by a third air duct to an air filter, for providing filtered ambient air to the internal combustion engine. The first and second air ducts in each case have at least one control element for controlling the amount of air flowing through. The second and third air ducts in each case have a mass flow sensor for measuring a mass of the air flowing through the relevant air duct. Methods and devices for diagnosing the air supply are also described.

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