FEEL SYSTEM OF INTERNAL COMBUSTION ENGINE ADAPTED FOR OPERATION ON LIQUEFIED NATURAL GAS Russian patent published in 1997 - IPC

FIELD: mechanical engineering; internal combustion engines. SUBSTANCE: fuel system has isothermic cryogenic cylinder made in form of device for storage and gasification of cryogenic liquid whose thermostatically controlled vessel is provided with neck detachably stopped by cap with thermoinsulating plug in neck and with coiled gas discharge tube cooling the plug at gas discharge. End of coil is dipped into thermostatically controlled vessel to liquid level which divides conventionally the vessel into gas and liquid spaces and precludes exceeding the level at charging the vessel. Condenser in bottom portion of vessel is in contact with bottom portion of vessel wall and is provided with siphon tube with restrictor on its end located in condenser, and filter on other end. Hermetically sealed gas chamber is installed separately from thermostatically controlled vessel and is heated by engine exhaust gases through shutoff and regulating device, for instance, cock at gas inlet side and is furnished with nonspill sectional sump with bent inwards upper edges of sections - cylinders with tilting towards first section and interconnected by pipes. Safety valve and controlled gas discharge valve provide controlled gas discharge into hermetically sealed gas chamber and into ambient medium, and siphon intake tube connects upper part of condenser with bottom portion of first section of sump in gas chamber and it freely passes liquid and its vapors back and forth and has filter on its end in sump. Siphon tube serves as brace preventing vibrations of vessel in service. Fuel metering device is made on main gas line in form of high-pressure gas regulator-accelerator with control pedal and with eccentric idling switch. Engine idling valve is provided with screw adjustable in section. EFFECT: enlarged operating capabilities. 2 cl, 4 dwg