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:
Jul. 03, 2007
Filed:
Sep. 22, 2003
Satoru Inarida, Hitachinaka, JP;
Satoru Inarida, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A railway car drive system comprising a first railway car mounting a power generator, a power converter, a driving motor and a power storage; a second railway car mounting a power converter, a driving motor and a power storage; and a power transmission connecting each of the power generators and power storage; wherein the system further comprises a power management unit for controlling the generated power of the power generator and the power storage quantity of the power storage, the power storage storing the power generated by the power generator and a regenerative power, the driving motor being driven via the power converter using as power source the power generator and the power storage to thereby run the train.