Cooling device for engine

Abstract

A cooling device for an internal combustion engine includes a jacket provided in the engine such that a coolant is capable of flowing through the jacket, a flow control valve connected to at least one of an inlet side of the jacket and an outlet side of the jacket to adjust a flow rate of the coolant. The flow control valve includes a housing having a flow passage communicating with the jacket such that the coolant is capable of flowing through the flow passage, a valve body arranged in the housing to open or close the flow passage, and a heat transfer member contacting the engine and a part of the housing accommodating the valve body to transfer a heat from the engine to the housing.

What is claimed is: 
     
         1 . A cooling device for an internal combustion engine, comprising:
 a jacket provided in the engine such that a coolant is capable of flowing through the jacket; and   a flow control valve connected to at least one of an inlet side of the jacket and an outlet side of the jacket to adjust a flow rate of the coolant, wherein   the flow control valve includes:
 a housing having a flow passage communicating with the jacket such that the coolant is capable of flowing through the flow passage; 
 a valve body arranged in the housing to open or close the flow passage; and 
 a heat transfer member contacting the engine and a part of the housing accommodating the valve body to transfer a heat from the engine to the housing. 
   
     
     
         2 . The cooling device according to  claim 1 , wherein
 the housing is connected to the engine such that the flow passage communicates with an inlet of the jacket or an outlet of the jacket, and   the heat transfer member contacts an inner wall surface of a part of the engine that defines the jacket, and contacts an inner wall surface of the housing that defines the flow passage.   
     
     
         3 . The cooling device according to  claim 2 , wherein the housing made of a material which is lower in heat conductivity than that of the heat transfer member. 
     
     
         4 . The cooling device according to  claim 1 , wherein the flow control valve is located outside of the engine. 
     
     
         5 . The cooling device according to  claim 1 , wherein
 the housing includes a valve storage part that accommodates the valve body therein, and   the heat transfer member contacts an inner wall surface of the housing to define an inner space of the valve storage part in which the valve body is accommodated.   
     
     
         6 . The cooling device according to  claim 1 , wherein
 the heat transfer member provided in a connection part between the jacket and the flow passage, and   the heat transfer member extends in a flow direction of the coolant to define the flow passage and a part of the jacket.