| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a turbocharger oil supply structure for eliminating such drawbacks that oil supplied to a bearing of a turbocharger has high viscosity at the time of cold starting and is insufficient on quick acceleration and that methods for mounting a heater to heat oil or increasing an oil supply amount are expensive and increase a load on an oil pump. <P>SOLUTION: An oil supply structure to a turbocharger of an engine includes: an oil pump 22 pumping lubricating oil from an oil pan 20 to deliver; an oil feed pipe 25 communicating with an exit of the oil pump 22 via an oil filter 23; a first oil path 26 connected to the oil feed pipe 25 to deliver the lubricating oil to a turbocharger 10; a second oil path 28 branched from the oil feed pipe 25 and communicating with the first oil path 26 via a flow control valve 27; an oil return path 29 returning the lubricating oil from the turbocharger 10 to the oil pan 20; a temperature sensor 42 measuring or estimating the temperature of the engine; and a control device 40 controlling opening and closing of the flow control valve 27 on the basis of the temperature sensor 42. <P>COPYRIGHT: (C)2013,JPO&INPIT |
