ISO 7299-2:2021 pdf download – Diesel engines — End-mounting flanges for pumps — Part 2: High-pressure supply pumps for common rail fuel injection systems.
1 Scope This document specifies dimensional requirements for 10 types of end-mounting flanges of high- pressure supply pumps for common rail fuel injection systems for use in diesel (compression-ignition) engines. 2 Normative references There are no normative references in this document. 3 Terms and definitions No terms and definitions are listed in this document. ISO and IEC maintain terminological databases for use in standardization at the following addresses: — ISO Online browsing platform: available at https:// www .org/ obp — IEC Electropedia: available at https:// www .electropedia .org/ 4 Dimensions and tolerances 4.1 General Engine manufacturers should use the tolerance H7 for the female register diameter. In the figures and tables, except for Figures 2 and 5 and Tables 2 and 5 (shaft end with tang drive), the diameter d 2 corresponds to the diameter d specified in ISO 6519. NOTE The flange configuration can optionally be rotated relative to the pump housing. 4.2 High-pressure supply pumps 4.2.1 Type 1 end-mounting flange See Figure 1 and Table 1.