Title:
ROTARY SPEED CONTROL SYSTEM FOR ENGINE
Document Type and Number:
WIPO Patent Application WO/1992/006287
Kind Code:
A1
Abstract:
A rotary speed control system for controlling the rotary speed of an engine (1) through remote control of the turning of a governor lever (3). This rotary speed control system comprises: a stepping motor (6) for turning the governor lever (3); lever position detecting switches (11), (12) for detecting the abutting of the governor lever (3) against stoppers (4), (5); a pulse counter (14); and a controller (13). And, the controller (13) stores a count value of the pulse counter (14), when the position detecting switches (11), (12) are turned on, as an updatable reference value and performs rotary speed control and initial adjustment of the engine (1) on the basis of the reference value.
Inventors:
EGASHIRA MASAKI (JP)
HAGA MASAKAZU (JP)
TOMIKAWA OSAMU (JP)
HIRATA TOUICHI (JP)
HAGA MASAKAZU (JP)
TOMIKAWA OSAMU (JP)
HIRATA TOUICHI (JP)
Application Number:
PCT/JP1991/001299
Publication Date:
April 16, 1992
Filing Date:
September 27, 1991
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY (JP)
International Classes:
F02D1/08; F02D29/00; F02D29/04; F02D31/00; F02D41/38; (IPC1-7): F02D1/08; F02D41/14
Foreign References:
| JPS6011638A | 1985-01-21 | |||
| JPS6196151A | 1986-05-14 | |||
| JPS6445928A | 1989-02-20 | |||
| JPS5982539A | 1984-05-12 |
Other References:
See also references of EP 0503088A4
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