| 摘要 |
The mfg. method is used for a fuel injection pump comprising a pump body with a bore in which a cylindrical flanged pump barrel is mounted, a plunger being reciprocal within a bore in the barrel. The bore in the pump body is formed by a broaching operation, the broached bore haivng a non-circular form. The broach is shaped so that the broached bore has at least three flat sides for engagement with the peripheral surface of the pump barrel. The broach is also shaped to provide a tongue in the bore, pref. intermediate adjacent ends of a pair of the sides. The tongue engages in a longitudinal groove in the barrel, to prevent angular movement of the barrel within the bore. |
