EXHAUST PRESSURE REDUCTION MECHANISM AND EXHAUST PRESSURE REDUCTION METHOD FOR INTERNAL COMBUSTION ENGINE

WIPO Patent Application WO/2015/029900

A1

In an internal combustion engine (1) provided with a turbo-supercharging system, and with a low-pressure EGR passage (14) connecting an exhaust passage (13) situated at the downstream side of a turbine (15a) of the turbo-supercharging system and an air intake passage (12) situated at the upstream side of a compressor (15b) of the turbo-supercharging system, the exhaust passage (13) is equipped with an exhaust pump (20) situated downstream from the turbine (15a) and upstream from the branching point of the low-pressure EGR passage (14), and the low-pressure EGR passage (14) is equipped with an EGR pump (21). In so doing, in the internal combustion engine (1) provided with the turbo-supercharging system and the low-pressure EGR system, rise in pressure of exhaust gases at the outlet of the internal combustion engine (1) is minimized, thereby preventing increased pumping loss, and improving the fuel economy of the internal combustion engine (1).

WO/2012/042584	CYLINDER HEAD
WO/2015/090522	METHOD FOR OPERATING A RECIPROCATING INTERNAL COMBUSTION ENGINE

HARA TAKASHI (JP)

PCT/JP2014/072003

March 05, 2015

August 22, 2014

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ISUZU MOTORS LTD (JP)

F02M25/07; F01N5/02; F02B37/00; F02D21/08; F02D23/00

JP2010236381A	2010-10-21
JP2009097378A	2009-05-07
JP2008294129A	2008-12-04
JP2008284971A	2008-11-27
JPH0712011A	1995-01-17

Seiryu Patent Professional Corporation et al. (JP)
Clear stream international patent business corporation (JP)

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