| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve a discharge capacity control mechanism of a high pressure fuel supply pump. <P>SOLUTION: The pump includes: a cylinder, a plunger which reciprocates within the cylinder to change the volume within the cylinder, a valve body provided, in order to open and close a through hole for connecting the interior of the cylinder with a low pressure fuel passage, on the downstream side of the through hole, a first spring for biasing the valve body in a closing direction, an engaging member installed on the side of the low pressure fuel passage to operate the valve body to an opening position against force of the first spring, a second spring for imparting the engaging member resisting force to the force of the first spring, and an electromagnetic driving device for releasing the engaging member from the state engaged with the valve body against the force of the second spring. <P>COPYRIGHT: (C)2012,JPO&INPIT |
