Title:
【発明の名称】可変容積型油圧ポンプを有する可搬式工具
Document Type and Number:
Japanese Patent JPH11506395
Kind Code:
A
Abstract:
A hydraulic drive system for a battery operated portable compression tool. The tool has an electric motor. The drive system has a self-regulating variable displacement pump with a rotatable conduit frame having radial conduits, pistons reciprocally located in the conduits, and a ring bearing surrounding the conduit frame in an eccentric adjustable location. Ends of the pistons are located against the inside of the ring bearing. A valve plate located against a front end of the rotatable conduit frame to control entry and exit of fluid into and out of the conduit frame as it is rotated.
Inventors:
Heskey, George Tee
Porrel, louis-crowd
Michelle, William
Porrel, louis-crowd
Michelle, William
Application Number:
JP51094496A
Publication Date:
June 08, 1999
Filing Date:
September 12, 1995
Export Citation:
Assignee:
Furamatom Connectors International
Hydro Renue Reduke
Hydro Renue Reduke
International Classes:
B25B5/06; B25B27/14; B25B28/00; F04B1/04; F04B1/107; F04B49/12; F16D31/02; (IPC1-7): B25B28/00; B25B5/06; F16D31/02
Foreign References:
| US5114541A | 1992-05-19 | |||
| US5188739A | 1993-02-23 |
Attorney, Agent or Firm:
Masatake Shiga (2 outside)