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. 18, 2010
Filed:
Aug. 31, 2005
Hikosaburo Hiraki, Tochigi, JP;
Takehiro Komatsu, Hiratsuka, JP;
Hikosaburo Hiraki, Tochigi, JP;
Takehiro Komatsu, Hiratsuka, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
To provide a transmission capable of using pump/motors or generator/motors of smaller maximum torque and of small size. The transmission includes input shaft (), output shaft (), a mechanical transmission part interposed between input shaft () and output shaft () including planetary gear mechanisms (), (), and a hydrostatic transmission part interposed between input shaft () and output shaft () including three pump/motors (), (), (). A rotating shaft of first pump/motor () and a rotating shaft of second pump/motor () are coupled to the mechanical transmission part. Clutches (), (), () are provided for coupling a rotating shaft of third pump/motor () to at least one of the rotating shaft of first pump/motor () and the rotating shaft of second pump/motor ().