Title:
SPEED CHANGE GEAR
Document Type and Number:
WIPO Patent Application WO/2006/027983
Kind Code:
A1
Abstract:
A speed change gear capable of using pump/motor assemblies or generator/motor assemblies of small size with smaller maximum torque. The speed change gear comprises an input shaft (4), an output shaft (16), a machine transmission part having planetary gear mechanisms (5) and (6) interposed between the input shaft (4) and the output shaft (16), and a hydraulic transmission part having three pump/motor assemblies (21), (25), and (31). Also, the speed change gear comprises clutches (34), (35), and (36) connecting the rotating shaft of the first pump/motor assembly (21) and the rotating shaft of the second pump/motor assembly (25) to the machine transmission part and connecting the rotating shaft of the third pump/motor assembly (31) to the rotating shaft of the first pump/motor assembly (21) and/or the rotating shaft of the second pump/motor assembly (25).
Inventors:
HIRAKI HIKOSABURO (JP)
KOMATSU TAKEHIRO (JP)
KOMATSU TAKEHIRO (JP)
Application Number:
PCT/JP2005/015915
Publication Date:
March 16, 2006
Filing Date:
August 31, 2005
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
HIRAKI HIKOSABURO (JP)
KOMATSU TAKEHIRO (JP)
HIRAKI HIKOSABURO (JP)
KOMATSU TAKEHIRO (JP)
International Classes:
F16H47/04; F16H3/46; F16H3/62; F16H3/72
Foreign References:
| DE3733152A1 | 1989-04-13 | |||
| JPS4914934Y1 | 1974-04-13 | |||
| JPS4956068A | 1974-05-30 | |||
| EP0026115A2 | 1981-04-01 | |||
| JP2003164007A | 2003-06-06 | |||
| JPH11321357A | 1999-11-24 | |||
| US6478705B1 | 2002-11-12 | |||
| FR2520827A1 | 1983-08-05 |
Other References:
ISHIHARA T. ET AL: "Kikai Sekkei Series Ryutai Dendo Sochi no Sekkei", 30 November 1967 (1967-11-30), pages 191 - 198, XP003006802
See also references of EP 1798447A4
See also references of EP 1798447A4
Attorney, Agent or Firm:
Inoue, Tsutomu (2-12 Itachibori 1-chome, Nishi-ku, Osaka-sh, Osaka 12, JP)
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