UNDERWATER LINEAR TRANSPORT SYSTEM - YASKAWA DENKI SEISAKUSHO KK

Title:

UNDERWATER LINEAR TRANSPORT SYSTEM

Document Type and Number:

WIPO Patent Application WO/1991/019621

Kind Code:

A1

Abstract:

An underwater linear transport system provided with a vehicle (1) running along a track (2) in the water. The vehicle (1), with its dead weight slightly different from its buoyancy, has a tightly sealed construction and is supported on and movable along the track (2). The primary side (4) of a linear induction motor is provided on the track (2) while facing the secondary side (6) of the linear induction motor provided on the vehicle (1). There are provided a propelling control means for controlling a propelling force produced by the linear induction motor formed of the primary side (4) and the secondary side (6), and wheels for supporting the difference between the dead weight and the buoyancy of the vehicle (1) on the track (2). In order to reduce the difference between the dead weight and the buoyancy, an electromagnetic force to offset the difference is applied, or, in order to keep constant the length of gap between the conductor on the secondary side and the track (2), an electric current command is issued.

Inventors:

YOSHIDA KINJIRO (JP)
INOKUCHI HIROFUMI (JP)
MATSUMOTO TOSHIO (JP)

Application Number:

PCT/JP1991/000831

Publication Date:

December 26, 1991

Filing Date:

June 20, 1991

Export Citation:

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Assignee:

YASKAWA DENKI SEISAKUSHO KK (JP)

International Classes:

B60L13/10; B61B13/08; B63G8/08; B63H19/08; (IPC1-7): B60L13/02; B60L13/06; B60L13/10; B61B13/08; B63G8/08; B63H19/00; B63H21/00; B65G54/02

Foreign References:

JPS4814015A
JPS6377305A	1988-04-07
JPS50122627A	1975-09-26
JPS52149712A	1977-12-13

Other References: