Modification of LNG -- diesel car LNG car, want to change what parts?
Large, the class of the bus, long-distance passenger cars and trucks generally use diesel vehicles.
Diesel vehicles are using diesel type compression ignition internal combustion engine.
Diesel locomotive combustion of natural gas, there are two ways: one is to ignite the spark ignition engines, the diesel pilot.
1, diesel engine to burn natural gas content:
(1) structure to reduce the exhaust gas temperature and cooling system of the engine
(2) lubricating oil cooling transformation engine
(3) the engine valve seat cooling transformation: the change of the valve stem seal
(4) the new replacement of piston ring
(5) the engine compression ratio decreases
(6) the design of the new cam shaft
(7) installing ignition system new
(8) the engine cylinder head installation of spark plug
(9) installing crankshaft or camshaft position sensor, and the signal of disc
2, diesel car modified car technology path:
Modified car route fuel advantages disadvantages
Dual fuel vehicle (compression ignition engine) (15% - 20%) + gas (85% - 80%) has ignited diesel power only dropped 5%, running can restore the burning oil to avoid gas shortage predicament two sets of fuel system, the environmental protection effect for oil rate low, slightly lower, modified car control air-fuel ratio, high technical requirements
Natural gas single fuel vehicle (ignition) natural gas removal of the original fuel system into a spark ignition (with gasoline engine) good environmental protection effect, all the alternative to diesel, good benefits, modified car cost slightly less power down 10% - 20%, cannot recover less diesel
3, oil to gas conditions:
To exhaust emissions environmental governance modified car after the effect and recovery of modified premium value, oil to gas vehicles suitable for selection condition is good, the operation within 3 years of the bus, the bus, on the run for 4 years and above the car, modification of little significance.