Cooling system for work machine

Abstract

An object of the present invention is to provide a cooling system for a work machine including a sound insulating/flow regulating plate that is capable of coping with different types and operating conditions of a work machine. An upper cover is provided above a cooling package that contains a heat exchanger unit and a cooling fan. A side door is provided at one side of the upper cover and faces the cooling package. Upper air intake holes open to the space between the side door and the cooling package and are formed in the upper cover. Side air intake holes are formed in the side door, at a location adjacent to the upper cover. A sound insulating/flow regulating plate is swingably mounted by hinges that are disposed between the upper air intake holes and the side air intake holes.

1 . A cooling system for a work machine, the cooling system comprising: 
 a cooling package comprising a heat exchanger unit and a cooling fan;    an upper cover disposed above the cooling package;    a side cover disposed at one side of the upper cover and facing the cooling package;    upper air intake holes that are formed in the upper cover so as to open to a space between the side cover and the cooling package;    side air intake holes formed in an upper part of the side cover, at a location adjacent to the upper cover; and    a sound insulating/flow regulating plate that is capable of; moving between the upper air intake holes and the side air intake holes; blocking sound generated inside the work machine; and regulating flows of air introduced from the upper air intake holes and the side air intake holes.    
     
     
         2 . The cooling system for a work machine as claimed in  claim 1 , wherein: 
 the cooling system further comprises a swing shaft means disposed between the upper air intake holes and the side air intake holes; and    the sound insulating/flow regulating plate is swingably supported by the swing shaft means.    
     
     
         3 . The cooling system for a work machine as claimed in  claim 1 , wherein the cooling system further comprises: 
 hinges for attaching a base edge of the sound insulating/flow regulating plate to an underside of the upper cover; and    a locking means for securing a distal edge of the sound insulating/flow regulating plate to the underside of the upper cover when the sound insulating/flow regulating plate is in a folded state.    
     
     
         4 . The cooling system for a work machine as claimed in  claim 1 , wherein: 
 the cooling system further comprises a plurality of sound insulating/flow regulating plates.    
     
     
         5 . The cooling system for a work machine as claimed in  claim 1 , wherein: 
 the side cover is a side door that can be opened outwards and back; and    the sound insulating/flow regulating plate is attached to the side door.    
     
     
         6 . The cooling system for a work machine as claimed in  claim 1 , wherein the cooling system further comprises: 
 an actuator for operating the sound insulating/flow regulating plate;    temperature sensors for detecting temperature data of the cooling package; and    a control means for controlling an angle of the sound insulating/flow regulating plate by controlling the actuator based on temperature data from the temperature sensors.    
     
     
         7 . The cooling system for a work machine as claimed in  claim 1 , wherein: 
 the heat exchanger unit of the cooling package comprises a plurality of devices selected from the group consisting of a heat exchanger of a radiator serving to cool cooling water for an engine, a heat exchanger of an oil cooler serving to cool hydraulic fluid in a hydraulic circuit, a condenser of an air conditioner circuit, and a heat exchanger of an aftercooler serving to cool engine intake air compressed by a turbo supercharger; and    the sound insulating/flow regulating plate is adapted so that a position of the sound insulating/flow regulating plate is adjustable to accommodate a combination structure of the selected devices and the cooling fan.    
     
     
         8 . The cooling system for a work machine as claimed in  claim 2 , wherein the cooling system further comprises: 
 hinges for attaching a base edge of the sound insulating/flow regulating plate to an underside of the upper cover; and    a locking means for securing a distal edge of the sound insulating/flow regulating plate to the underside of the upper cover when the sound insulating/flow regulating plate is in a folded state.    
     
     
         9 . The cooling system for a work machine as claimed in  claim 2 , wherein: 
 the cooling system further comprises a plurality of sound insulating/flow regulating plates.    
     
     
         10 . The cooling system for a work machine as claimed in  claim 3 , wherein: 
 the cooling system further comprises a plurality of sound insulating/flow regulating plates.    
     
     
         11 . The cooling system for a work machine as claimed in  claim 2 , wherein: 
 the side cover is a side door that can be opened outwards and back; and    the sound insulating/flow regulating plate is attached to the side door.    
     
     
         12 . The cooling system for a work machine as claimed in  claim 2 , wherein the cooling system further comprises: 
 an actuator for operating the sound insulating/flow regulating plate;    temperature sensors for detecting temperatures of the cooling package; and    a control means for controlling an angle of the sound insulating/flow regulating plate by controlling the actuator based on temperature data from the temperature sensors.    
     
     
         13 . The cooling system for a work machine as claimed in  claim 3 , wherein the cooling system further comprises: 
 an actuator for operating the sound insulating/flow regulating plate;    temperature sensors for detecting temperatures of the cooling package; and    a control means for controlling an angle of the sound insulating/flow regulating plate by controlling the actuator based on temperature data from the temperature sensors.    
     
     
         14 . The cooling system for a work machine as claimed in  claim 4 , wherein the cooling system further comprises: 
 an actuator for operating the sound insulating/flow regulating plates;    temperature sensors for detecting temperatures of the cooling package; and    a control means for controlling angles of the sound insulating/flow regulating plates by controlling the actuator based on temperature data from the temperature sensors.    
     
     
         15 . The cooling system for a work machine as claimed in  claim 5 , wherein the cooling system further comprises: 
 an actuator for operating the sound insulating/flow regulating plate;    temperature sensors for detecting temperatures of the cooling package; and    a control means for controlling an angle of the sound insulating/flow regulating plate by controlling the actuator based on temperature data from the temperature sensors.    
     
     
         16 . The cooling system for a work machine as claimed in  claim 2 , wherein: 
 the heat exchanger unit of the cooling package comprises a plurality of devices selected from the group consisting of a heat exchanger of a radiator serving to cool cooling water for an engine, a heat exchanger of an oil cooler serving to cool hydraulic fluid in a hydraulic circuit, a condenser of an air conditioner circuit, and a heat exchanger of an aftercooler serving to cool engine intake air compressed by a turbo supercharger; and    the sound insulating/flow regulating plate is adapted so that a position of the sound insulating/flow regulating plate is adjustable to accommodate a combination structure of the selected devices and the cooling fan.    
     
     
         17 . The cooling system for a work machine as claimed in  claim 3 , wherein: 
 the heat exchanger unit of the cooling package comprises a plurality of devices selected from the group consisting of a heat exchanger of a radiator serving to cool cooling water for an engine, a heat exchanger of an oil cooler serving to cool hydraulic fluid in a hydraulic circuit, a condenser of an air conditioner circuit, and a heat exchanger of an aftercooler serving to cool engine intake air compressed by a turbo supercharger; and    the sound insulating/flow regulating plate is adapted so that a position of the sound insulating/flow regulating plate is adjustable to accommodate a combination structure of the selected devices and the cooling fan.    
     
     
         18 . The cooling system for a work machine as claimed in  claim 4 , wherein: 
 the heat exchanger unit of the cooling package comprises a plurality of devices selected from the group consisting of a heat exchanger of a radiator serving to cool cooling water for an engine, a heat exchanger of an oil cooler serving to cool hydraulic fluid in a hydraulic circuit, a condenser of an air conditioner circuit, and a heat exchanger of an aftercooler serving to cool engine intake air compressed by a turbo supercharger; and    the sound insulating/flow regulating plates are adapted so that positions of the sound insulating/flow regulating plates are adjustable to accommodate a combination structure of the selected devices and the cooling fan.    
     
     
         19 . The cooling system for a work machine as claimed in  claim 5 , wherein: 
 the heat exchanger unit of the cooling package comprises a plurality of devices selected from the group consisting of a heat exchanger of a radiator serving to cool cooling water for an engine, a heat exchanger of an oil cooler serving to cool hydraulic fluid in a hydraulic circuit, a condenser of an air conditioner circuit, and a heat exchanger of an aftercooler serving to cool engine intake air compressed by a turbo supercharger; and    the sound insulating/flow regulating plate is adapted so that a position of the sound insulating/flow regulating plate is adjustable to accommodate a combination structure of the selected devices and the cooling fan.    
     
     
         20 . The cooling system for a work machine as claimed in  claim 6 , wherein: 
 the heat exchanger unit of the cooling package comprises a plurality of devices selected from the group consisting of a heat exchanger of a radiator serving to cool cooling water for an engine, a heat exchanger of an oil cooler serving to cool hydraulic fluid in a hydraulic circuit, a condenser of an air conditioner circuit, and a heat exchanger of an aftercooler serving to cool engine intake air compressed by a turbo supercharger; and    the sound insulating/flow regulating plate is adapted so that a position of the sound insulating/flow regulating plate is adjustable to accommodate a combination structure of the selected devices and the cooling fan.