| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a high-pressure fluid feed pump, capable of preventing fuel leak and seizure without causing increase in fuel price and processing cost. SOLUTION: In a plunger pump (high-pressure fluid feed pump), having a cylinder member 30 which has a fuel discharging opening 30a provided on a housing 20 and a cam chamber 21b communicating with the cylinder member 30 formed, and discharging high-pressure LPG fuel from the discharging opening 30a, by reciprocating a plunger 15 slidably inserted in the cylinder member 30 with a cam 16 arranged in the cam chamber 21b, lubrication oil of a little bit higher sealing pressure than discharging pressure of the high-pressure LPG fuel is supplied on the sliding surface of the cylinder member 30 and the plunger 15.</p> |
