Patent ID: 7152518
Filing Date: 2006-12-26
Classification: F04B

Abstract:
1. A fuel injection pump comprising: a housing having a first and a second chamber formed therein; a plunger disposed within the first chamber of said housing so as to reciprocate along a given path of travel; a cam mechanism installed on a torque input shaft, said cam mechanism revolving within the second chamber following rotation of the torque input shaft to move said plunger within the first chamber for compressing fuel sucked into a fuel compression chamber; a washer chamber formed in an inner wall of said second chamber of said housing, said washer chamber being located in an axial direction of said cam mechanism; a washer installed fixedly within said washer chamber, said washer working as a bearing surface which is in contact with and holds said cam mechanism from moving in the axial direction thereof, wherein said washer is placed within said washer chamber with a clearance gap between an outer circumference thereof and an inner circumference of said washer chamber such that said washer is subject to movement within said washer chamber following revolution of said cam mechanism, and wherein said washer is secured within the washer chamber at at least two peripheral portions of said washer using fastening members to avoid movement of said washer following the revolution of said cam mechanism.