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1. WO2020194952 - WORK MACHINE

Publication Number WO/2020/194952
Publication Date 01.10.2020
International Application No. PCT/JP2019/050790
International Filing Date 25.12.2019
IPC
F01P 11/12 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
11Component parts, details, or accessories, not provided for in, or of interest apart from, groups F01P1/-F01P9/149
12Filtering, cooling, or silencing cooling-air
B60K 11/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
11Arrangement in connection with cooling of propulsion units
02with liquid cooling
04Arrangement or mounting of radiators, radiator shutters, or radiator blinds
B60K 11/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
11Arrangement in connection with cooling of propulsion units
08Air inlets for cooling; Shutters or blinds therefor
E02F 9/00 2006.01
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
FDREDGING; SOIL-SHIFTING
9Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/-E02F7/160
F01M 5/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING
5Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
F01P 5/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
5Pumping cooling-air or liquid coolants
02Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
04Pump-driving arrangements
Applicants
  • 日立建機株式会社 HITACHI CONSTRUCTION MACHINERY CO., LTD. [JP]/[JP]
Inventors
  • 兵藤 幸次 HYODO Koji
  • 吉川 正規 YOSHIKAWA Masaki
  • 伊藤 和之 ITO Kazuyuki
  • 田中 哲二 TANAKA Tetsuji
  • 島▲崎▼ 浩司 SHIMAZAKI Kouji
  • 青木 勇 AOKI Isamu
Agents
  • 特許業務法人 武和国際特許事務所 THE PATENT BODY CORPORATE TAKEWA INTERNATIONAL PATENT OFFICE
Priority Data
2019-06085727.03.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) WORK MACHINE
(FR) MACHINE DE TRAVAIL
(JA) 作業機械
Abstract
(EN)
Provided is a work machine capable of notifying that maintenance is needed due to ongoing clogging of a cooling device or a drop in cooling performance.  A wheel loader 1, which is provided with a radiator 31 or an oil cooler 32, comprises controllers 5, 5A which determine an ongoing state of clogging of the radiator 31 or the oil cooler 32. The controllers 5, 5A determine whether the radiator 31 or the oil cooler 32 is clogged on the basis of an outside air temperature AW and a cooling water temperature CW or a working oil temperature HW, determine whether clogging is ongoing on the basis of clogging occurrence ratios R1, R2 in operation of an engine 30, and output, to a warning buzzer 61 or a user management system 62, an notification instruction signal instructing notification that maintenance is needed if it is determined that clogging is ongoing.
(FR)
L'invention concerne une machine de travail apte à notifier qu'une maintenance est nécessaire en raison du colmatage en cours d'un dispositif de refroidissement ou d'une baisse de performance de refroidissement. Une chargeuse sur pneus (1), qui est pourvue d'un radiateur (31) ou d'un refroidisseur d'huile (32), comprend des dispositifs de commande (5, 5A) qui déterminent un état de colmatage en cours du radiateur (31) ou du refroidisseur d'huile (32). Les dispositifs de commande (5, 5A) déterminent si le radiateur (31) ou le refroidisseur d'huile (32) est colmaté sur la base d'une température d'air extérieur (AW) et d'une température d'eau de refroidissement (CW) ou d'une température d'huile de travail (HW), déterminent si un colmatage est en cours sur la base de rapports de survenue de colmatage (R1, R2) lors du fonctionnement d'un moteur (30), et produisent, pour un bruiteur d'alerte (61) ou pour un système de gestion d'utilisateur (62), un signal d'instruction de notification ordonnant la notification qu'une maintenance est nécessaire s'il est déterminé qu'un colmatage est en cours.
(JA)
冷却装置における目詰まりの継続または冷却性能低下によりメンテナンスが必要である旨を報知することが可能な作業機械を提供する。 ラジエータ31およびオイルクーラ32を備えたホイールローダ1において、ラジエータ31またはオイルクーラ32の目詰まりの継続状態について判定するコントローラ5,5Aを備え、コントローラ5,5Aは、外気温度AWおよび冷却水温度CWまたは作動油温度HWに基づいて、ラジエータ31またはオイルクーラ32が目詰まりを起こしているか否かを判定し、エンジン30の作動中における目詰まりの発生割合R1,R2に基づいて目詰まりが継続しているか否かを判定し、目詰まりが継続していると判定された場合に、警報ブザー61やユーザー管理システム62に対してメンテナンスが必要である旨の報知を指令する報知指令信号を出力する。
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