Title:
WORKING MACHINE
Document Type and Number:
Japanese Patent JP2022185333
Kind Code:
A
Abstract:
To provide a working machine capable of improving the efficiency in dust removal with a removal device.SOLUTION: The working machine includes: a main body; a piece of working equipment attached to the main body; a cooling fan that is accommodated inside an engine room provided to the main body for directing cooling air; and a heat exchanger that is placed upstream of the cooling fan with respect to the cooling air flow for exchanging heat with cooling air. The working machine also includes: a first removal unit located upstream of the heat exchanger with respect to the cooling air flow, changes the cooling air flow to a swirling flow to remove dust included in the swirling flow with the centrifugal force, guides the cooling air to the heat exchanger, and discharge the cooling air containing dust; a storage case that stores the first removal unit and forms a discharge space into which the cooling air is discharged from the first removal unit; and a fan for making the discharge space of the storage case negative pressure for amplifying the swirling flow.SELECTED DRAWING: Figure 2
Inventors:
TAKAHASHI KAORI
IGUCHI MASATOSHI
ETO SHINYA
IGUCHI MASATOSHI
ETO SHINYA
Application Number:
JP2021092945A
Publication Date:
December 14, 2022
Filing Date:
June 02, 2021
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY
International Classes:
E02F9/00; F01P5/06; F01P11/10
Attorney, Agent or Firm:
Patent Attorney Corporation Takewa International Patent Office