Patent · US Active

Secondary air introduction system and method for system operation

US9151200B2 · kind B2 · utility

2Cited by
23References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 22, 2013
Grant dateOct 6, 2015
Priority date
Expiry dateJan 22, 2034

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02T10/12
  • WIPO fieldEnvironmental technology
  • WIPO sectorChemistry

Abstract

A vehicle system operation method is provided. The method comprises, during a first operating condition, increasing back pressure in a first exhaust conduit positioned upstream of a turbine and downstream of a first emission control device and during a second operating condition, reducing back pressure in the first exhaust conduit and flowing boosted air from downstream of a compressor into a second exhaust conduit positioned upstream of a second emission control device and downstream of the turbine.

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