4Landi Systems Overview Landi designs and produces “ready to go” LPG / CNG systems coveringOEM and aftermarket installationAny type of alternative fuel from LPG to CNG and CNG hydrogen mixtureLandi focuses on optimising the installation process, engine endurance, vehicle performance and exhaust emissionsCNG/LPG systems mainly consist of the following components:Pressure reducers and vaporizer (only LPG)Valves / electrical valvesInjectorsElectronic control unitsSwitchesAir / fuel mixersLandi does not produce the tankLandi gas fuel systems are installed “on top” of the existing petrol fuel system, allowing the vehicle to be operated by both fuels
5Multipoint Injection System Landi LPG SystemsMultipoint Injection SystemMixer Based System (1)Carburetor VehiclesOmegasIG1 or LI02 pressure reducerOMEGAS ECUOMEGAS SwitchGI Injector RailV05, LC01, LCS/2SE81 or EC04 pressure reducerV05, LC01, LCS/2 ECU'sV05, LC01, LCS/2 SwitchesStepper Motor ActuatorAir / Fuel Mixers094 or RenzomaticSE81 or Renzomatic pressure reducer094 or 100 family switchesMixersPetrol Solenoid Valve(1) Mixer based systems have a Lambda control unit if a catalyst is present
13MED RGBI Gas Injector Current management: 4 / 1 “Peak and hold” Supply Voltage: 6 to 16 voltsTemperature Range: -40°C to +120°CNominal Pressure: 0.8 to 3 barAperture 2 msDimensions: Ø 32 x h 73 mmWeight: gHomologation: ECE R -40°C min.Available in 3 different sizes to cover all the power range of the engines on the market
14Injector Rails Available Rail with 2 Injectors with and without P/T sensorRail with 3 Injectors with and without P/T sensorRail with 4 Injectors with and without P/T sensorInjector rails package3 Cylinders engine (1x3 injector rail)4 Cylinders engine (1x4 injector rail)4 Cylinders engine boxer (2 x 2 injector rails)5 Cylinders engine (1x2 injector+1x3 injectors rails)6 Cylinders engine (2x3 injector rails)8 Cylinder engine (2x4 injector rails)Injector sizes:Each rail is available in 3 different injector sizesSmall (green cap) till 20 kW/cylMedium (black cap) from 15 kW to 30 Kw/cylLarge (white cap) From 25 kw to 40 kW/cyl14
18The last generation car technological level represents a new challenge for the producer of LPG and CNG converting systems, due to emission levels, diagnostic devices required by the new laws, performance and driving desired by the costumers.These facts drove LANDIRENZO to project OMEGAS, the new LPG and CNG sequential multipoint “corrector” injection system with electro-injectors.The components of OMEGAS are designed by LANDIRENZO in order to be qualified like standard O.E.M. components, with the possibility to be tailoredaccording to the specific requirements.
19It’s a gaseous, phased, multi-point sequential injection system: Gaseous: the system injects gaseous fuels (like LPG or CNG) into the intake manifolds, the closest possible to the intake valves of the cylinders;Multi-point: The gas is injected very close to the intake port of each cylinderPhased: the injection feed each cylinder phased with the position of the piston positionSequential: the cylinders receive the gas one after the other, according to the engine cycle phase in which they are.System is suitable for:Full group injection systemSemi sequential injection systemSequential injection system
21OMEGAS CONTROL SYSTEMThe control system is slave type ECU. This means that the petrol ECU remains fully operational and calculates the petrol injectors injection timing according to the signals given by the car sensors (lambda sensor signal being the most important one);Using some more sensor signals and the relative appropriate algorithms, Omegas processes these petrol ECU outputs as inputs, to obtain the correct gas injectors injection timing from petrol ones;Omegas, then, takes care to physically avoid petrol injection uncoupling the petrol injectors.
22Operating strategy, petrol injectors uncoupling Driving signals of injectorsOperating strategy, petrol injectors uncouplingPetrol ECUPower supplies of injectors (+15 V)Uncoupling relayUncoupling impedanceOmegas ECUPetrol injectors
25Omegas System is not suitable for these engines Single point injection systemMultipoint injection car without oxygen sensor (system would work but it’s very difficult to calibrate so it’s better avoid unless necessary)Direct injection engines likeVW group FSI and TFSI engineAlfa JTS enginesMitsubishi GDIBMW new IS enginesIt’s possible retrofit some of these engine by the new “Omegas Direct System”
26Kit/Minikit main components Available but not included in the kit Pressure regulator/LPG converter (different one depending on the kit)Filter (Fly-One or FT375 depending on the kit)Injectors Rail (MED RGI injectors) with integrated T/P sensorElectronic Control Unit OmegasMain WiringSwitchStandard intake nozzlesAvailable but not included in the kitExternal coolant temperature sensorPetrol injector uncoupling harness available in different type
27PRESSURE / TEMPERATURE GAS SENSOR The pressure sensor inform the ECU gas on the absolute pressure (Bosch sensor) in the injector rail.It’s integrated in the injector rail and doesn’t need any further adjustment
28NOZZLEThe nozzle is threaded to the suction manifold and connected to the injectors bymeans of a suitable tube.M6X1
30Coolant temperature signal The coolant temperature signal is used to have a precise information about the engine temperature during the warm up and the normally run to gas.Is possible:read to original temperature sensor (in the software is present a procedure that allow to parameterize the original sensor of the car).read the temperature with an additional T sensor not included in a KIT.In case of temperature sensor not connected the engine will activate a recovery procedure which manage the switch on the gas temperature but is much safer, especially in cold climate, have the correct value of the coolant temperatureOriginal Water SensorWire to connect to gas harness
31TEMPERATURE SENSOR (optional) The water temperature sensor is fitted on the water pipe just before the gas pressure regulator.The signal transmitted to the GAS ECU is necessary for the correct work of the system.
32Wire to connect to gas harness MAP SIGNALThe MAP signal is used to have a precise information about the manifold pressure.This signal is directly read to original MAP sensor of the car.In the software is present a procedure that allow to parameterize the sensor.If isn’t present the MAP sensor in the software is present other strategy to manage the return to gas when the gas tank is empty.Original MAP SensorWire to connect to gas harness+5VMAPSIGNALGNDAIRTEMPERATURE