| 摘要 |
PROBLEM TO BE SOLVED: To provide a pump for fuel supply suitable for a booster type accumulation fuel injection device. SOLUTION: A pump for fuel supply pressurizes and pressure-feeds fuel while converting rotation movement of a cum to lifting movement of a plunger through the medium of a tappet structure. Contact surfaces of both or either one of the roller body of the tappet structure and the plunger are formed in a curved surface structure. The pump for fuel supply is employed as a booster type accumulation fuel injection device for pressurizing to 50MPa or higher a fuel in which the flow rate per unit time is 500-1,500 l/hour. COPYRIGHT: (C)2005,JPO&NCIPI
|
