GB/T 9485-2023Radial turbochargers—Connection dimensions (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

This document replaces GB/T 9485-2003 "Radial Turbocharger Connection Dimensions". Compared with GB/T 9485-2003, except for the In addition to structural adjustments and editorial changes, the main technical changes are as follows:

a) Changed the scope (see Chapter 1, Chapter 1 of the 2003 edition);

b) The mutual position dimensional standards and requirements of some superchargers have been changed (see 4.1, 2.1 of the 2003 edition);

c) Added relevant requirements for superchargers with compressor impeller outlet diameters of 40mm~60mm (see Table 1~Table 6);

d) Changed the connection size of the supercharger gas inlet and outlet with a compressor impeller outlet diameter of 60mm~140mm (see Table 2~ Table 5, Table 2~Table 5 of the 2003 edition);

e) The compressor inlet clamp connection and connection dimensions are added (see Figure 6 and Table 2);

f) Added compressor outlet plug-in connection, clamp connection and connection dimensions (see Figure 11, Figure 12 and Table 3);

g) The turbine inlet three-hole single inlet flange connection and connection dimensions are added (see Figure 18 and Table 4);

h) The connection dimensions of the four-hole square single inlet and double inlet of the turbine inlet have been changed (see Figure 20, Figure 21 and Table 4, 2003 version Figure 14 and Table 4);

i) The irregular-shaped flange connection and connection dimensions of the turbine outlet have been added (see Figure 34 and Table 6).

1 Scope

This document specifies the connection dimensions of radial flow turbochargers (hereinafter referred to as "superchargers").

This document is applicable to superchargers with a compressor impeller outlet diameter of 40mm~200mm, except for special-purpose superchargers.

2 Normative reference documents

This document has no normative references.

3 Terms and definitions

There are no terms or definitions to be defined in this document.

4 Technical requirements