To suppress excessive rotation exceeding a strength limit of a turbine in an engine waste heat recovery system.
The waste heat recovery system 1 includes: an engine body 3; a turbine 4 driven by steam produced by recovering waste heat of an engine 100 in an overheater 7; a first pulley 5 coupled to a shaft 4a of the turbine 4 with an electromagnetic clutch 50; a second pulley 12 provided in a crankshaft 11; a motive energy recovery means for recovering motive energy from the turbine 4 to the crankshaft 11 by means of a belt 6 stretched around the first and second pulleys 5, 12 in a tensioned manner; and an ECU 15 for coupling the first pulley 5 to the shaft 4a of the turbine 4 by means of the electromagnetic clutch 50 when determining that the turbine 4 is excessively rotating to thereby adjust the load exerted on the shaft 4a of the turbine 4.
ARISAWA KATSUHIKO
YAMADA KENICHI
HAYASHI KUNIHIKO
HOSOI AKIHITO
SUGAMOTO SHUSAKU
SUGIYAMA TOSHIHISA
Toshiyuki Hatta
High Yoshitaka Hayashi
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