![Porsche 911 GT3 Cup 2018 Скачать руководство пользователя страница 249](http://html1.mh-extra.com/html/porsche/911-gt3-cup-2018/911-gt3-cup-2018_techical-manual_1580129249.webp)
Version: 4/20/2018
8
248
Bodywork
911 GT3 Cup (991 II)
MY 2018
4.14
Fuel system
A FT3 safety fuel tank (100 liters (26.4 gal) with return-free fuel system is used in the
911 GT3 Cup (991 II). The tank consists of a fuel cell which provides maximum safety
and meets the current FIA standard, and a protective shell made of carbon
.
The tank
integrates two fuel pumps. The main pump is surrounded by fuel baffles with one-way
valves, witch collect the fuel around the main pump. The pumps supply the fuel via a
pressure regulator (5 bar/72.5 psi) to the fuel gallery on the engine side. From there,
the fuel is delivered via the main pump to the high press pump. The high pressure
pump is driven by an additional cam on the camshaft. The high pressure pump injects
the fuel via the fuel gallery and the fuel injectors directly into the combustion
chamber. Defueling takes place via a defueling coupling. Optionally, the fuel cell may
be equipped with two Stäubli dry couplings, which allow the fueling and defueling
procedure within an enclosed system. Underneath the tank, there is an underride
guard that protects the tank against impacts from the bottom. The fueling system
(4.14.1) can be obtained at the company Sobek. Contact address, see chapter 7.9.
The following components are installed:
1
Level indicator
2
Roll-over valve
3
Defueling coupling
4
Fuel pressure regulator
5
Fuel pump
6
Fuel cut off valve
7
Pre fuel pump
8
Catch tank
Function of the FIA Roll Over Valve
The valve is allocated in the breather line. It fulfills three functions:
Closing of the breather line in case of a roll-over.
Over pressure safety function; in case of a roll over, the valve opens at a over
pressure of 200 mbar (E.g. by heating and expansion) compared to ambient
pressure to prevent the fuel cell from damage caused by too high over pressure.
Float valve to close the valve when gasoline exits through the breather line.
Function of the fuel cut off valve
The fuel cut off valve is a safety valve to protect from gasoline leakage with damaged
gasoline lines. The valve closes the gasoline support line in case of a leakage.
1
4
5
4.14.2
4.14.3
8
7
2
6
3
4.14.1
Содержание 911 GT3 Cup 2018
Страница 1: ...Technical manual 911 GT3 Cup 991 II MY 2018 ...
Страница 17: ...Version 4 20 2018 911 GT3 Cup 991 II MY 2018 16 Preface ...
Страница 224: ...Version 4 20 2018 223 Bodywork 911 GT3 Cup 991 II MY 2018 Side view 4 2 2 ...
Страница 351: ...Version 4 20 2018 350 Electrical system 911 GT3 Cup 991 II MY 2018 ...
Страница 369: ...Version 4 20 2018 368 Maintenance 911 GT3 Cup 991 II MY 2018 7 1 1 1 60 sec ...