“SIA Heliomash” has  produced 2 types of cryogenic fuel tanks with capacity of 100 and 300 liters for a wide variety of  vehicles and tractors. Meanwhile  various  problems  were solved how   to supply regasified LNG to  a vehicle gas engine at a recommended gas pressure. Thus for  a serial gas engine CUMMINS  СGe-250.31 the minimal working pressure at the entrance to the low pressure redactor  should be no less than 0.413 Mpa ( 60 psi) and maximum – no higher than 1.034 Mpa / 150 psi/. For  KAMAZ heavy truck gas engine 820.53-260 / Euro-2/ gas pressure after the redactor should be stable at  0.3 MPa.

Cryogenic fuel tank / CFT / – in Russian " BKT"  – “bak kriogenny toplivny”/   a double walled cylindrical vessel made of stainless still and insulated with  multilayer vacuum thermo insulation. The inner vessel is rested on two supports made of  glass resin. There is a special ‘trapping device’ at the upper part of the inner vessel. It prevents the surge of liquid into gas dumping device when  the vehicle moves by uneven road and it guarantees that at  a filling process there is always  a certain volume of gaseous matter above the  liquid gas surface. At the bottom part of the vessel there is a vacuum valve  to  suck out and sustain vacuum  during  periodical service works.  Cryogenic fuel tank  is  attached to a warming up device connected to the vehicle engine cooling system.  All  the tank fittings are tank-mounted  behind a special door with a lock. The block of fittings includes 1 fast valve, 2 safety valves, 1 pressure module, 2 regulators of pressure, 1 ball drain tap,1  ball evaporator tap, 1  ball tap of warming and draining device.  Safety valves are tuned to the opening pressure  1.15 Mpa / 11,5 kg/cm2/ or 0.55 MPA / 5,5 kg/cm2/. These tanks have been State certified and can be mounted on  various vehicles and tractors.

Further the article describes  the experience of cryogenic fuel tanks with  different vehicles including agricultural machinery. It also contains tables and graphs.

 Cryogenic fuel tank BKT-300 mounted at KAMAZ heavy truck