公开(公告)号：EP4295020A1

公开(公告)日：2023-12-27

申请号：EP22704527.5

申请日：2022-02-07

申请人： VALEO SYSTEMES THERMIQUES

发明人： DE VAULX, Cedric ,  AZZOUZ, Kamel

IPC分类号： F01P11/14 ,  F01P3/20 ,  B60K11/02

公开(公告)号：EP3412886B1

公开(公告)日：2021-12-08

申请号：EP17747414.5

申请日：2017-01-31

发明人： KOSHIO, Fumiaki ,  OGANE, Takahiko ,  ISHII, Masamichi ,  KUSUMOTO, Wataru

IPC分类号： F01P7/04 ,  F01P11/14 ,  B60H1/00 ,  F04D25/08 ,  F04D27/00 ,  F01P5/04

公开(公告)号：EP3260679B1

公开(公告)日：2021-06-16

申请号：EP16189651.9

申请日：2016-09-20

发明人： Seo, Yoo Jin

IPC分类号： F01P11/14 ,  F01P7/16 ,  F01P7/14

公开(公告)号：EP3832083A1

公开(公告)日：2021-06-09

申请号：EP19921816.5

申请日：2019-12-25

申请人： Hitachi Construction Machinery Co., Ltd.

发明人： HYODO Koji ,  YOSHIKAWA Masaki ,  ITO Kazuyuki ,  TANAKA Tetsuji ,  SHIMAZAKI Kouji ,  AOKI Isamu

IPC分类号： F01P11/12 ,  B60K11/04 ,  B60K11/08 ,  E02F9/00 ,  F01M5/00 ,  F01P5/04 ,  F01P11/14

摘要： Provided is a work machine capable of notifying that maintenance is necessary due to continuation of clogging in a cooling device or decrease in cooling performance. A wheel loader 1 including a radiator 31 and an oil cooler 32 comprises a controller 5, 5A configured to determine a clogging continuation state of the radiator 31 or the oil cooler 32. The controller 5, 5A determines whether clogging is occurring in the radiator 31 or the oil cooler 32 based on outside air temperature AW and cooling water temperature CW or hydraulic oil temperature HW, determines whether the clogging continues based on a clogging occurrence ratio R1, R2 while an engine 30 is operating, and outputs a notification command signal for providing the alarm buzzer 61 and the user management system 62 with a command to notify that maintenance is necessary when it is determined that the clogging continues.

公开(公告)号：EP3584419A1

公开(公告)日：2019-12-25

申请号：EP19180622.3

申请日：2019-06-17

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  AISIN SEIKI KABUSHIKI KAISHA

发明人： KANEKO, Rihito ,  TAKAGI, Noboru ,  HISAMINATO, Naoto ,  YAMAGUCHI, Mitsuru ,  ANDO, Hirokazu ,  YAMAGUCHI, Masaaki ,  AOYAGI, Takahiko ,  WATANABE, Hirotaka

IPC分类号： F01P7/14 ,  F01P7/16 ,  F01P11/14 ,  F16K31/08 ,  F01P5/12 ,  F16K15/02

摘要： A cooling device includes an inner passage, an outer passage, an engine-driven pump, an electromagnetic control valve, and a driving circuit that regulates current flowing through the electromagnetic control valve by activating and deactivating a switching element. A cooling controller for the cooling device includes a processing circuit configured to execute an operation process for operating, when the engine-driven pump is driven, the switching element by setting a duty cycle of an activation time to a switching cycle, which is a reciprocal of a switching frequency of the switching element, to be a larger value when a temperature of the internal combustion engine is low than when the temperature is high and a cycle varying process for setting a longer switching cycle when the temperature of the internal combustion engine is less than a preset temperature than when the temperature is greater than or equal to the preset temperature.

公开(公告)号：EP3078827B1

公开(公告)日：2019-08-28

申请号：EP16164363.0

申请日：2016-04-08

申请人： Renault S.A.S.

发明人： MOUNETOU, Christophe

IPC分类号： F01P11/14 ,  F01P7/16

公开(公告)号：EP2857724B1

公开(公告)日：2019-04-03

申请号：EP13794727.1

申请日：2013-05-22

申请人： Mikuni Corporation

发明人： OIKAWA, Takumi ,  KANESAKA, Yoshiyuki ,  TSUCHIYA, Toru ,  KAN, Nobutatsu

IPC分类号： F16K5/04 ,  F01P7/14 ,  F01P11/14 ,  F16K11/085

公开(公告)号：EP2514943B1

公开(公告)日：2019-01-23

申请号：EP10837372.1

申请日：2010-11-04

申请人： NISSAN MOTOR CO., LTD.

发明人： KAGEYAMA, Yuzo ,  KUBOTA, Mitsuhiko ,  NAKAZAWA, Takashi

IPC分类号： F01P11/14 ,  F01P7/08 ,  F16D35/02

公开(公告)号：EP3250913A4

公开(公告)日：2018-02-14

申请号：EP15880557

申请日：2015-01-30

申请人： HEWLETT PACKARD ENTPR DEVELOPMENT LP

发明人： ROGACS ANITA ,  LONG GREG SCOTT ,  CADER TAHIR ,  MCAULIFFE KEITH MATHEW ,  FRANZ JOHN

IPC分类号： G01N27/02 ,  F01P11/14 ,  G01N27/06 ,  G01N33/18

CPC分类号： G01N33/1886 ,  F01P11/14 ,  F01P11/18 ,  F01P2003/001 ,  F01P2025/80 ,  G01N27/026 ,  G01N27/07 ,  G01N27/4071 ,  H05K7/20672

摘要： An example device in accordance with an aspect of the present disclosure includes a sensor, a controller, and an injector. The sensor is to provide sensor output regarding fluid chemistry of a fluid of a cooling system. The controller is to identify attributes of the fluid. The injector is to inject at least one additive into the fluid to bring at least one attribute into a threshold range.

公开(公告)号：EP3115570A4

公开(公告)日：2017-11-15

申请号：EP14884758

申请日：2014-11-17

申请人： HITACHI CONSTRUCTION MACH CO

发明人： KANEHAMA MITSUHIKO ,  SATO KENSUKE ,  NAKAMURA TSUYOSHI

IPC分类号： F01P7/04 ,  E02F9/00 ,  E02F9/08 ,  E02F9/20 ,  E02F9/22 ,  F01P5/04 ,  F01P5/06 ,  F01P11/08 ,  F01P11/14 ,  F15B11/08 ,  F15B13/04

CPC分类号： E02F9/226 ,  B60Y2200/412 ,  E02F9/00 ,  E02F9/0808 ,  E02F9/2095 ,  E02F9/2292 ,  F01P5/04 ,  F01P7/044 ,  F15B11/08 ,  F15B13/0401 ,  F16H61/4148

摘要： The purpose of the present invention is to provide a cooling fan control device for a construction machine, whereby the effects of heat caused by warm-up operation can be suppressed. This cooling fan control device is equipped with a control unit (10a) that controls the rotational speed of a cooling fan (21) in accordance with a main pump discharge pressure (P) detected by a main pump discharge pressure sensor (25), an engine cooling water temperature (Tw) detected by an engine cooling water temperature sensor (26), a hydraulic oil temperature (To) detected by a hydraulic oil temperature sensor (27), and an engine rotational speed (E) detected by an engine rotational speed sensor (28). The cooling fan (21) is rotated at the rotational speed controlled by the control unit (10a), thereby sending the generated cooling air to an oil cooler (19) and a control valve (13).