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:
May. 15, 2012
Filed:
Sep. 07, 2007
Akira Komatsu, Kanagawa, JP;
Akira Komatsu, Kanagawa, JP;
Isuzu Motors Limited, Tokyo, JP;
Abstract
A control device for multi-stage turbochargers is provided that is capable of improving fuel consumption in transient and stationary states of an engine equipped with multi-stage turbochargers. A control devicefor multi-stage turbochargers which are turbochargersof at least two or more stages provided in series at an engineand in which the high-pressure stage turbochargeris configured by a variable-capacity turbochargerequipped with a variable vanecomprising detection meansfor detecting a boost pressure or an intake air amount of a turbochargerof a stage with a pressure lower than that of the variable-capacity turbocharger, the opening degree of the variable vanebeing controlled on the basis of a detection value of the detection means