A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HYDRAULIC WORK MACHINE
To increase frequency of use of auto idle, an engine is accelerated even more quickly than before and work involving a heavy load can be performed within a short period of time when an operator resumes work and recovers a speed of the engine. When an operation lever device 4a or 4b is operated and the speed is low because of auto idle control, a pilot pump 3 is unloaded to thereby reduce load torque on the engine 1. Operation of a compressor 14 is also suspended while an air conditioner 13 is operating. Furthermore, for a target speed of the engine 1, a speed at which work can be performed is set and the engine 1 is accelerated. When the engine 1 thereafter reaches a predetermined speed or a predetermined period of time thereafter elapses, the pilot pump 3 is loaded and the operation of the compressor 14 for the air conditioner 13 is resumed.
HYDRAULIC WORK MACHINE
To increase frequency of use of auto idle, an engine is accelerated even more quickly than before and work involving a heavy load can be performed within a short period of time when an operator resumes work and recovers a speed of the engine. When an operation lever device 4a or 4b is operated and the speed is low because of auto idle control, a pilot pump 3 is unloaded to thereby reduce load torque on the engine 1. Operation of a compressor 14 is also suspended while an air conditioner 13 is operating. Furthermore, for a target speed of the engine 1, a speed at which work can be performed is set and the engine 1 is accelerated. When the engine 1 thereafter reaches a predetermined speed or a predetermined period of time thereafter elapses, the pilot pump 3 is loaded and the operation of the compressor 14 for the air conditioner 13 is resumed.
HYDRAULIC WORK MACHINE
HYDRAULISCHE ARBEITSMASCHINE
ENGIN DE CHANTIER HYDRAULIQUE
HOSHINO MASATOSHI (author) / TAKAHASHI KIWAMU (author) / HIJIKATA SEIJI (author)
2023-03-01
Patent
Electronic Resource
English