Product Catalog Calculate recoupment of GCE |
 Offer for the Company |
 Ask a question about GCE |
Construction and working gas pressure regulator on the example of gear Tomasetto AT-07
Composition gear:- Socket gas supply.
- Electromagnetic valve.
- Fine filter.
- Large plastic (or brass) screw, adjust the sensitivityof the membrane the second stage.
- Small (brass) screw-needle,adjustable gas flow mode XX.
- Two plastic pipe supply and drainingantifreeze from the engine cooling system.
- Branch pipe out of gas.
- Screw-cap for drainage of condensate.
- Gear housing made ofaluminum alloy and consists of two halves (body first and second stagehousing), interconnected by bolts through the rubber seal, with thetwo sides closed with iron shutters.
Device reducer
1. Paper fine filter built into the gearhousing, the top iron lid is closed and bolted with three bolts withheads under the hexagon number 5. The filter is designed for cleaningof mechanical gas pollution, moving into gear. Frequency of replacement- 20 thousand km.2. Electromagnetic valve is built into the gearhousing and is designed to supply and stop the flow of the liquidphase of gas in the first stage gear.
3. Screw-needle designed tobypass the additional portion of gas in the cavity of the secondstage, bypassing the valve second stage.This is done to maintain amore stable XX and reduce the influence of dynamic loads on themembrane of the second stage, which causes additional fluctuations ofthe membrane, thereby compromising stability.
4.The first stage isdesigned to transfer gas from a liquid to a gaseous state with asimultaneous decrease in its pressure to work, it consists of (in thesequence of disassembly):
- Covers the first stage, the front of thegearbox and bolted 7 th bolts MB;
- Springs first stage;
- Membranefirst stage;
- Rocker with the valve of the first stage;
- Case thefirst step, bolted from the second stage of the 7th bolts with headsunder the cross.
- Covers the secondstage, the back of the gearbox with the pin mount reducer;
- Secondstage of the membrane;
- Rocker with the valve second stage;
- Springvalve second stage.
- Case the second stage.
Work gear
Mandatorycondition for normal operation of gear: the coolant temperature mustbe at least 40 degrees (especially in the winter operation). From thegas cylinder in the liquid state is served by the expenditure linethrough the sleeve in the filter housing, where it stops at a closedsolenoid valve. When you open the solenoid valve through the valveseat the first step, evaporating, the gas enters the first stage, withthe first stage membrane is bending under the pressure of gas andcarries away the rocker valve first stage, thereby lowering the valveseat,while the gas flow stops.This point corresponds to the pressureof 0.4 atmospheres, which is regulated by a spring-first grade level.Spring tension is given by the manufacturer and is not subject toregulation. More gas at a pressure of 0,4 bar goes through the maze tothe valve seat second stage, through which enters the cavity of thesecond stage, and further through the pipe exit gas - into the engine.Idle (XX)
Adjusting the gas flow in the second stage is performed byloading valve secondary level, which is implemented by rotating alarge adjusting screw (4), through the spring.This membrane is thesecond stage does not change its position and is in equilibrium(negative pressure generated by the engine in mode XX, offset by theload spring).When you open the throttle
When you open the throttleincreases depression in the channel flow of gas to the engine (theeffect of ejection), which rejects the second stage of the membrane isproportional to the load on the engine.Membrane, deviating, carriesaway the rocker valve second stage, with the valve opens the saddle,and the gas flow increases - the engine develops momentum.Vacuumreducer
Vacuum pressure regulator is supplying the starting portion ofthe gas only when you create dilution in the intake manifold of theengine. At the time of launch, ie, rotating crankshaft starter, gearboxoperates in a vacuum membrane, it releases the second stage valve(valve open circuit), which gives launcher portion of the gas. Afterstarting the engine valve second stage goes into idle mode and iscontrolled by a large diaphragm second stage, which responds to theopening of the throttle carburetor.The quality of the mixture at idlespeed depends on the load on the second stage valve and is regulatedby rotating the adjustment screw (on the vacuum reducer it is one).Ifthe crankshaft does not rotate and there is no dilution, the gas fromthe reducer should not leave even when the ignition key (position onthe control panel - "GAS").Service
After every 1500-2000 km run (on ahot engine) should unscrew the plug (screw), located at the bottom ofthe gear, and drain off condensate (oily sludge).Electronic gear
Theelectronic gearbox is supplying the starting portion of gas lasting2-3 seconds, just when you turn the ignition, if the remote controlmode is "GAS". Further, in the absence of rotation of the crankshaft(not control pulse to the ignition coil),feeding the starting portionis terminated. This reducer vacuum membrane is absent, and the secondstage valve is always off-loaded and ready to supply the startingportion of the gas.The gas supply to the gearbox controlled by anoptional, built-in pressure regulator solenoid valve, which iscontrolled by date transport signal control switch modes (gas /gasoline).In the presence of crankshaft rotation starter for thepositive signal is fed continuously, and after starting the enginegearbox goes into idle mode. The electronic gearbox quality mixture ofidling is governed by two screws: coarse and fine-tuning.Coarseadjustment screw adjusts the load on the valve second stage, and fineadjustment screw adjusts the diameter of the cross section of anadditional channel of idling. That is why it is done.In the motionbecause of the influence of dynamic loads on a large membrane mayoccur secondary instability of gear at idle. If the channel idle andproperly configure it more stable portion of the gas XX would reducethe impact of these loads. Therefore, setting the electronic gearboxis a little different from setting up the vacuum.Service
After every1500-2000 km run (on a hot engine) should unscrew the plug (screw),located at the bottom of the gear, and drain off condensate (oilysludge).The main task of gear
The main task of gear - is fine-tuning of the mixture on all modes of engine operation, starting with XX andissuance of the maximum-required amount of gas for this mode of theengine.As a rule, if all the main components of GCE (it's a mixer,gear and dispenser) are selected properly for the engine, whenproperly configured, specified conditions are metunconditionally.Proper selection of accessories GCE is under powergear and the diameter of the mixer volume of the engine, depends onthe work of GCE in general.But the selection of gear does not work isbecause the power range used big gear up to 100 kW, almost universalfor all engines operating up to 4.5 liters (verified that 100kilowatt-WIDE reducers are working properly), for engines with a largevolume reducers, calculated on the engine power to 140 kW. Matchingfaucet requires a more careful approach. Mixer must meet not only thevolume of the engine, but the specific model or type of carburetorintake manifold (for injection engines).Therefore, all the taps areselected on the already existing directories for a specific vehicleand the specific carburetor, and only in some cases, where either acar or a model of the carburetor or intake manifold is not in ourcatalog, mixer is selected by measuring the diameter of the seat. Forcarbs, which have access to air channels 1 st and 2 nd cameras aresometimes used gas supply through the locks connections.In some casesthis gas supply is the only way (for example, the carburetor SOLEKSany model), but the procedure frame fittings rather laborious andrequires certain skills and knowledge, so do it yourself is notrecommended. The main purpose of the proper selection of the mixer isto achieve (at work mixing the complex with gear) appropriatelyproportioned air / fuel, which ensures proper operation of GCE ingeneral.The ideal proportion of the air / fuel is 14,7:1 for gasolineand 15,7:1 for gas, it is also often referred to as tachometry, andobtained as a result of this mixture is called stichomythic. Thus, themain task GCE - a gas in the necessary proportions to the engine, andfor that GCE should be adjusted correctly. Any adjustment requires theutmost attention GCE and certain skills and knowledge on your part.Информация обновлена 09.02.2010 г.
