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1. (WO2019065121) WORK VEHICLE
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Pub. No.: WO/2019/065121 International Application No.: PCT/JP2018/032782
Publication Date: 04.04.2019 International Filing Date: 04.09.2018
IPC:
F01P 5/04 (2006.01) ,B60K 11/04 (2006.01) ,E02F 9/00 (2006.01) ,F01P 5/06 (2006.01) ,F01P 7/04 (2006.01) ,F01P 11/14 (2006.01) ,F01P 11/16 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
P
COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
5
Pumping cooling-air or liquid coolants
02
Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
04
Pump-driving arrangements
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
K
ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS; AUXILIARY DRIVES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST, OR FUEL SUPPLY, OF PROPULSION UNITS, IN VEHICLES
11
Arrangement in connection with cooling of propulsion units
02
with liquid cooling
04
Arrangement or mounting of radiators, radiator shutters, or radiator blinds
E FIXED CONSTRUCTIONS
02
HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
F
DREDGING; SOIL-SHIFTING
9
Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/-E02F7/160
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
P
COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
5
Pumping cooling-air or liquid coolants
02
Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
06
Guiding or ducting air to or from ducted fans
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
P
COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
7
Controlling of coolant flow
02
the coolant being cooling-air
04
by varying pump speed, e.g. by changing pump-drive gear ratio
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
P
COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
11
Component parts, details, or accessories, not provided for in, or of interest apart from, groups F01P1/-F01P9/149
14
Indicating devices; Other safety devices
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
P
COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
11
Component parts, details, or accessories, not provided for in, or of interest apart from, groups F01P1/-F01P9/149
14
Indicating devices; Other safety devices
16
concerning coolant temperature
Applicants:
株式会社KCM KCM CORPORATION [JP/JP]; 兵庫県加古郡稲美町岡2680番地 2680, Oka, Inami-cho, Kako-gun, Hyogo 6751113, JP
Inventors:
兵藤 幸次 HYODO Koji; JP
青木 勇 AOKI Isamu; JP
田中 哲二 TANAKA Tetsuji; JP
島▲崎▼ 浩司 SHIMAZAKI Koji; JP
Agent:
特許業務法人 武和国際特許事務所 THE PATENT BODY CORPORATE TAKEWA INTERNATIONAL PATENT OFFICE; 東京都港区西新橋3丁目13番3号 ユニゾ西新橋三丁目ビル UNIZO Nishishimbashi 3-chome Bldg., 13-3, Nishishimbashi 3-chome, Minato-ku, Tokyo 1050003, JP
Priority Data:
2017-18540926.09.2017JP
Title (EN) WORK VEHICLE
(FR) VÉHICULE DE TRAVAIL
(JA) 作業車両
Abstract:
(EN) Provided is a work vehicle in which the clogging of a radiator can be eliminated appropriately, and in which the durability of components, such as a hydraulic pump, constituting a hydraulic circuit can be improved. This work vehicle comprises: an engine 1; a radiator 8 that cools a coolant of the engine 1; a hydraulic pump 2 driven by the engine 1; a cooling fan 4 that blows cooling air to the radiator 8; a hydraulic motor 3 that is driven by pressure oil discharged from the hydraulic pump 2 and that rotates the cooling fan 4; a direction switching valve 5 that makes the hydraulic motor 3 rotate either forward or reversely by switching the flowing direction of the discharged oil from the hydraulic pump 2; and a controller 7 that controls the direction switching valve 5 such that the forward-reverse rotation of the cooling fan 4 is switched repeatedly at every predetermined interval time TS. When a relationship between an outside air temperature TA detected by an outside air temperature sensor 16 and a coolant temperature TW detected by a coolant temperature sensor 17 satisfies a predetermined condition, the controller 7 makes the interval time TS shorter than an initially set normal time.
(FR) L'invention concerne un véhicule de travail dans lequel le colmatage d'un radiateur peut être éliminé de manière appropriée, et dans lequel la durabilité de composants, tels qu'une pompe hydraulique, constituant un circuit hydraulique peut être améliorée. Ce véhicule de travail comprend: un moteur (1); un radiateur (8) qui refroidit un liquide de refroidissement du moteur (1); une pompe hydraulique (2) entraînée par le moteur (1); un ventilateur de refroidissement (4) qui souffle de l'air de refroidissement vers le radiateur (8); un moteur hydraulique (3) qui est entraîné par l'huile sous pression déchargée à partir de la pompe hydraulique (2) et qui fait tourner le ventilateur de refroidissement (4); une soupape de commutation de direction (5) qui amène le moteur hydraulique (3) à tourner soit vers l'avant soit vers l'arrière par commutation de la direction d'écoulement de l'huile déchargée à partir de la pompe hydraulique (2); et un contrôleur (7) qui contrôle la soupape de commutation de direction (5) de telle sorte que la rotation avant-arrière du ventilateur de refroidissement (4) soit commutée de manière répétée à chaque intervalle de temps prédéterminé TS. Lorsqu'une relation entre une température d'air extérieur TA détectée par un capteur de température d'air extérieur (16) et une température de liquide de refroidissement TW détectée par un capteur de température de liquide de refroidissement (17) satisfait une condition prédéterminée, le contrôleur (7) rend le temps d'intervalle TS plus court qu'un temps normal initialement réglé.
(JA) ラジエータの目詰まりを適切に除去することができると共に、油圧回路を構成する油圧ポンプ等の耐久性を向上させることが可能な作業車両を提供する。 エンジン1と、エンジン1の冷媒を冷却するラジエータ8と、エンジン1により駆動される油圧ポンプ2と、ラジエータ8に冷却風を送風する冷却ファン4と、油圧ポンプ2から吐出される圧油によって駆動され、冷却ファン4を回転させる油圧モータ3と、油圧ポンプ2からの吐出油の流れ方向を切り換えて油圧モータ3を正逆転させる方向切換弁5と、冷却ファン4の正逆回転の繰り返し動作が所定の間隔時間TS毎に行われるように方向切換弁5を制御するコントローラ7とを備え、コントローラ7は、外気温度センサ16で検出された外気温度TAと冷媒温度センサ17で検出された冷媒温度TWとの関係が所定条件になったとき、間隔時間TSを初期設定された通常時間よりも短縮する。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)