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Page 3 of 54
1
PART ONE – installation of the system
1.1
List of standards
Regulations applicable to the installation process:
UNECE Regulation No. 115;
UNECE Regulation No. 67;
installation of systems to be used in Poland consistent with Appendix 9 “Additional
requirements applicable to vehicles fitted with an LPG system” to the Ordinance by the
Minster of Infrastructure of December 31, 2002 on technical requirements applicable to
vehicles as well as the scope of the necessary equipment; Journal of Laws No. 32 item
262;
other domestic regulations.
1.2
Description of the LPG STAG 400 DPI system
1.2.1
Scope of use
STAG 400 DPI supply system has been designed to control injection of autogas in the case
of spark ignition direct petrol injection engines.
1.2.2
STAG 400 DPI – operation principle
The system is based on typical elements including a tank along with its accessories, gas
tubes, LPG injectors and reducers. The system prepares fuel to be supplied to the inlet manifold
by vaporisation in the reducer and pressure stabilisation depending on the reducer setting.
Pressurised volatile LPG is supplied to the gas injectors installed in the vehicle’s engine, which
inject the fuel into the manifold through the gas tubes.
The injectors are opened by an electric signal generated by the LPG system controller.