Title:
ADDITIVE SUPPLY DEVICE FOR INTERNAL COMBUSTION ENGINES
Document Type and Number:
WIPO Patent Application WO/2014/033883
Kind Code:
A1
Abstract:
An engine (1) is provided with an SCR catalyst (41) for purifying NOx, an urea injection valve (230) for adding urea water to the SCR catalyst (41), and a first NOx sensor (130) for detecting NOx emissions. A control device (80) totals the NOx emissions from the previous injection of urea water, and after the total value reaches a reference value or more, an addition process to inject urea water from the urea injection valve (230) is performed.
Inventors:
SUZUKI HAYATO (JP)
OTA HIROHIKO (JP)
OTA HIROHIKO (JP)
Application Number:
PCT/JP2012/072074
Publication Date:
March 06, 2014
Filing Date:
August 30, 2012
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
SUZUKI HAYATO (JP)
OTA HIROHIKO (JP)
SUZUKI HAYATO (JP)
OTA HIROHIKO (JP)
International Classes:
F01N3/08; F01N3/20; F01N3/22
Foreign References:
JP4179386B2 | 2008-11-12 | |||
JP4388103B2 | 2009-12-24 | |||
JP2000265828A | 2000-09-26 |
Other References:
See also references of EP 2891776A4
Attorney, Agent or Firm:
ONDA, Hironori et al. (JP)
Hironori Onda (JP)
Hironori Onda (JP)
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