Electricity: motive power systems – Positional servo systems – Multiple mode systems
Patent
1990-02-14
1991-02-05
Ip, Paul
Electricity: motive power systems
Positional servo systems
Multiple mode systems
318563, 200 5R, 200 6A, 60427, 60389, F16D 3102
Patent
active
049908421
ABSTRACT:
An operation control device for a construction machine is constructed of a remote control valve having a member moveable in proportion to an operating lever stroke and having a plurality of devices engaged with the member and operable in association therewith. A part of the plural devices include a proportional hydraulic signal generator for reducing a hydraulic pressure from a hydraulic pressure source in proportion to a moving quantity of the member and generating a signal as a pilot pressure, and a part or the other of the plural devices including a proportional electric signal generator for generating an electric signal proportional to the moving quantity of the member.
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Ip Paul
Kabushiki Kaisha Kobe Seiko Sho
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