Provided are a work machine, a power unit, and a diesel engine of a work machine that make it possible to reduce emitted noxious substances to levels below reference values stipulated by exhaust gas regulations in advanced countries and regions while also omitting or simplifying a post-treatment device. A hydraulic pump 7 is driven by a diesel engine 1 that limits maximum output torque in a low revolution speed region NL lower than a high revolution speed region NH including a rated revolution speed in such a manner that the maximum output torque has a characteristic Xa of intermediate torque lower than torque of a maximum output horsepower point at the rated revolution speed, and a hydraulic actuator is driven by hydraulic fluid delivered from the hydraulic pump 7.
WORK MACHINE, POWER UNIT, AND DIESEL ENGINE OF WORK MACHINE
ARBEITSMASCHINE, ANTRIEBSEINHEIT UND DIESELMOTOR EINER ARBEITSMASCHINE
MACHINE DE TRAVAIL, UNITÉ DE PUISSANCE, ET MOTEUR DIESEL D'UNE MACHINE DE TRAVAIL
2021-11-24
Patent
Electronic Resource
English
IPC: | F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / E02F Baggern , DREDGING |
Work machine, power unit, and diesel engine of work machine
European Patent Office | 2019
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