| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pressure control device and a fuel supply device capable of improving response during fuel pressure change, improving calculation accuracy of a switching time of the fuel supply pressure, and improving fuel economy. <P>SOLUTION: This fuel supply device 3 includes: a fuel pump 40b discharging fuel toward an injector 22; a fuel pipe 44 connecting the injector 22 and the fuel pump 40b and supplying the fuel from the fuel pump 40b to the injector 22; a fuel pressure control valve 50 connected to the fuel pipe 44 and controlling a pressure of the fuel by pressure switching of an operation pressure fuel; a fuel switching valve 70 switching the pressure of the operation pressure fuel; and a connection pipe 100 connecting the fuel pressure control valve 50 and the fuel switching valve 70 and allowing the circulation of the operation pressure fuel. The connection pipe 100 is made of a material of a non-expansion body. <P>COPYRIGHT: (C)2013,JPO&INPIT |
