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Patent Searching and Data


Title:
LIQUID PRESSURE DRIVING GEAR
Document Type and Number:
Japanese Patent JPH10169602
Kind Code:
A
Abstract:

To provide a liquid pressure driving gear whereby feedback control can be operated even in the case of driving a a liquid pressure cylinder by pressure liquid from a liquid pressure pump driven by an electric motor.

A liquid pressure pump 1 driven by an electric motor 6 to be capable of rotating in both directions is provided, both ports 14, 16 of a liquid pressure cylinder 12 and both ports 2, 4 of the liquid pressure pump 1 are respectively connected. A speed detection sensor 28 detecting a rotational speed of the electric motor 6 and a position detection sensor 32 detecting displacement of a position by the liquid pressure cylinder 12 are provided. Based on a speed detected by the speed detection sensor 28 and a position detected by the position detection sensor 32, the electric motor 6 is feedback controlled, pressure liquid from the liquid pressure pump 1 is supplied to the liquid pressure cylinder 12, it is driven.


Inventors:
MATSUO HIDEKI
TAKAGI YOSHITOKU
Application Number:
JP33081696A
Publication Date:
June 23, 1998
Filing Date:
December 11, 1996
Export Citation:
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Assignee:
OPTON KK
International Classes:
F15B9/03; F15B9/04; F15B11/02; F16K15/00; (IPC1-7): F15B9/04; F15B9/03; F15B11/02; F16K15/00
Attorney, Agent or Firm:
Adachi Tsutomu