ICE LIQUEFIED GAS FEED SYSTEM Russian patent published in 2011 - IPC F02M21/02 

FIELD: engines and pumps.

SUBSTANCE: proposed system comprises gas cylinder 1, gas shut-off solenoid valve 13, evaporator reducing valve 14, electronic control unit 23, electric switch 27, switch unit, at least one solenoid liquefied gas valve 11 and one vapor phase valve 9, 10, pressure control device 15 and gas safety valve 7. Gas cylinder 1 comprises shut-off assembly 2 with multivalve. Said assembly 2 incorporates liquefied phase filling gate 6, liquefied phase gate 5 and at least one gas vapor phase gate 4. Solenoid gas valves 11 and 9 serves to feed gas into evaporator reducing valve 14. Evaporator reducing valve 14 is communicated via pipelines with gas shut-off solenoid vale 13, gas unions 16 and ICE intake manifold gas nozzles 19. Evaporator reducing valve 14 is connected, via electric conductors with heat-sensitive elements 28 of switch 27, to switch unit. Electronic control unit 23 is connected to gas shut-off and liquefied gas solenoid valves 13 and 11, respectively, and with gas nozzles 13 and "gas-gasoline" selector 24. Pressure control device 15 communicates, via gas line, has unions 16 and gas safety valve 7. ICE fuel system may incorporate second evaporator reducing valve 14 and heater 12.

EFFECT: operation at low temperature without preheating by extra heaters.

4 cl, 3 dwg