QC/T 247-2017Technical specifications for fuel gas systems of LPG vehicles (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009 "Directives for standardization - Part 1: Structure and drafting of standards".

This standard non-equivalently adopts the relevant provisions of the European Economic Commission of the United Nations ECFE R67 "Unified requirements on the approval of LPG special devices and motor vehicles equipped with LPG special devices" (effective from 2000-08-04).

This standard replaces QC/T 247-2002 "Technical specifications for isolated plant of liquefied petroleum gas".

As compared with QC/T 247-2002, the main changes in this standard are as follows:

- In the normative references, DELETE the standards SY 7548, QC/T 672, QC/T 675; ADD the standards GB 19159, GB 20912, QC/T 745, QC/T 769, QC/T 809, QC/T 917, GB/T 5653, GB 7258, GB 19239.

- ADD the terms and definitions for "fuel-gas system, leakage alarm device".

- In the General requirements, ADD the requirements that "the connection interface of fuel-gas system's components shall meet the requirements of GB/T 5653; the installation of gas system's components on vehicles shall meet the requirements of GB 7258, GB/T 19239 and other standards".

- MODIFY the technical requirements of "4.2.1 / 4.2.2 Components contained in fuel-gas system for LPG vehicles".

- ADD the technical requirements for such components as "4.3.1 Filling receptacle; 4.3.3 Liquid level meter; 4.3.7 LPG pipeline; 4.3.9 Leakage alarm device; 4.3.10 Harness assembly; 4.3.12 Fuel transfer switch".

- MODIFY the technical requirements for such components as "original 4.3.1 / current 4.3.2 Vehicle gas cylinders and vehicle gas cylinder accessories; original 4.3.5 / current 4.3.4 Stop valve; original 4.3.6 / current 4.3.5 Evaporative regulator".

- DELETE the technical requirements for such components as the "the original 4.3.2 Electric, pneumatic and hydraulically driven components; the original 4.3.3 Pressure sensor; the original 4.3.8 Fuel selection system and electrical wiring harness".

1 Scope

This standard specifies the definition and technical requirements for fuel-gas system (hereinafter referred to as gas systems) for LPG vehicles.

This standard applies to the fuel-gas systems that use liquified petroleum gas (hereinafter referred to as LPG) for automobiles that meets the requirements of GB 19159 and has a rated working pressure of 2.2 MPa.

2 Normative references

The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this standard.

GB/T 17895 Natural gas vehicle and liquefied petroleum gas vehicle - Vocabulary

GB 17259 Steel cylinders for the liquefied petroleum gas for vehicles

GB 18299 Automotive LPG steel cylinder multivalve

GB/T 18364 Filling receptacle of LPG vehicle

GB 19159 Automotive liquefied petroleum gases

GB 19239 Mounting requirements of special equipment for gas vehicle

GB 20912 Vaporizer/pressure regulator of LPG vehicle

GB/T 5653 Flared couplings - Specification

GB 7258 Safety specifications for power-driven vehicles operating on roads

QC/T 625 Metallic coatings and conversion coatings for automobiles

QC/T 673 Solenoid valve of LPG vehicles

QC/T 745 Rubber pipelines for liquefied petroleum gas vehicles

4 Technical requirements