The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 29, 2013
Filed:
Feb. 17, 2009
Koji Terashima, Fujisawa, JP;
Makoto Abe, Fujisawa, JP;
Yasushi Yamamoto, Fujisawa, JP;
Isuzu Motors Limited, Tokyo, JP;
Abstract
The present invention provides a waste heat recovering device capable of recovering waste heat with good efficiency from various heat sources in an internal combustion engine. The waste heat recovering device for driving an expanderby evaporating a working fluid by waste heat of an internal combustion engineincludes: a working fluid circulation flow pathin which the working fluid of the expanderis caused to circulate; a high-temperature heat exchangerfor heating the working fluid flowing in the working fluid circulation flow pathby a high-temperature fluid such as exhaust gas of the internal combustion engine; a low-temperature heat exchanger grouphaving, for each of low-temperature fluids such as cooling water and oil of the internal combustion engine, a low-temperature heat exchangerfor heating the working fluid flowing in the working fluid circulation flow pathby any one of the low-temperature fluids, the low-temperature heat exchangersbeing disposed in parallel with each other; a flow rate control valvethat controls a flow rate of the working fluid flowing into each low-temperature heat exchangerof the low-temperature heat exchanger group; and control meansfor controlling the flow rate control valve