Title:
ハイドロトランスフォーマ
Document Type and Number:
Japanese Patent JP2005522631
Kind Code:
A
Abstract:
The invention is based on a hydraulic transformer having a housing and having an expeller part in which a plurality of expellers which bound a number of expeller spaces with variable volumes are guided, a cam part on which the expellers are supported, and a valving surface which has three kidney-shaped control slots, one of which is connected to a supply port, one to a working port and one to a reservoir tank port. The objective is to provide a hydraulic transformer in which complex setting of the transmission ratio is avoided. The aimed-at objective is achieved according to the invention in that the valving surface can be driven in rotation by means of a drive, and in that of the two components comprising the expeller part and cam element one component is essentially arranged fixedly with respect to the housing and the other component can move freely in terms of two rotational or translatory degrees of freedom within a limited range.
Inventors:
Alexander Marc
Mori Junji
Mori Junji
Application Number:
JP2003584496A
Publication Date:
July 28, 2005
Filing Date:
April 10, 2003
Export Citation:
Assignee:
Bosch Rexroth AG
International Classes:
F04B1/30; F04B1/20; F04B1/28; F04B1/29; F04B1/32; F04B9/10; (IPC1-7): F04B1/30; F04B1/28; F04B1/29; F04B1/32
Domestic Patent References:
| JPS56143856A | 1981-11-09 | |||
| JPS62240481A | 1987-10-21 | |||
| JPH11141451A | 1999-05-25 | |||
| JPS50127032A | 1975-10-06 |
Foreign References:
| WO2002006669A1 | 2002-01-24 | |||
| EP0851121A1 | 1998-07-01 | |||
| US3079864A | 1963-03-05 |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel