CONDENSED WATER TREATMENT DEVICE FOR INTERNAL COMBUSTION ENGINE

Title:

CONDENSED WATER TREATMENT DEVICE FOR INTERNAL COMBUSTION ENGINE

Document Type and Number:

WIPO Patent Application WO/2014/199475

Kind Code:

A1

Abstract:

A condensed water treatment device determines whether or not the water storage amount (Qw) of condensed water generated by an EGR cooler and stored in a condensed water tank is equal to or less than a lower limit value (t1) (S2). If the water storage amount (Qw) is equal to or less than the lower limit value (t1), the flow rate of the EGR cooler is changed to 100% and the flow rate of a bypass path is changed to 0% (S3), and the supply of condensed water to an internal combustion engine is cancelled (S5). As a consequence, the condensed water treatment device increases the water storage amount (Qw). Meanwhile, if the water storage amount (Qw) is greater than the lower limit value (t1) and is equal to or greater than the upper limit value (t2), the flow rate of the EGR cooler is changed to 0% and the flow rate of the bypass path is changed to 100% (S7), and condensed water is supplied to the internal combustion engine (S9). As a consequence, the condensed water treatment device decreases the water storage amount (Qw).

Inventors:

ITO HISAKI (JP)
TAKADA NORIYUKI (JP)
HASHIZUME TAKESHI (JP)

Application Number:

PCT/JP2013/066270

Publication Date:

December 18, 2014

Filing Date:

June 12, 2013

Export Citation:

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Assignee:

TOYOTA MOTOR CO LTD (JP)

International Classes:

F02B47/02; F02M25/07

Domestic Patent References:

WO2012086181A1

2012-06-28

Foreign References:

JP2012127327A	2012-07-05
JP2012163061A	2012-08-30
JP2010048107A	2010-03-04
JP2012215142A	2012-11-08
JP2009121300A	2009-06-04
JP2012077630A	2012-04-19
JPH10318049A	1998-12-02
JP2008280945A	2008-11-20
JP2012189022A	2012-10-04

Other References: