Linal Bomba: Components and Operation
The Linal Bomba crankcase houses the camshaft in the side of the sump pump, setting the feed pump, which receives the camshaft movement of the injection pump, by means of an eccentric carved on it. Each cam actuates a tappet, which, through a roller, is applied against the cam, forced by the spring. The pusher, in turn, gives motion to the piston, which slides inside the cylinder. This cylinder communicates through lateral holes, called ports, with the pipe, which gets the oil from the pump. Besides the up and down movement of the piston, this can turn a certain angle about its vertical axis; the movement of the rack bar rolls the bottom of the upper piston. The cylinder valve is closed by depression, which is kept against its seat by the action of the spring.
Outside Pump
Generating pressure, mechanical regulator, regulating regimen, drive forward. Adjust it preferentially, start of injection, RPM of the feed pump. It aspirates fuel from the injection pump.
Return and Leak Management
- Return: Excess fuel.
- Leak: Calms in the piston ring groove that communicates with the plenum through a tangential channel to avoid oil and fuel mixture.
- Oil: Dosage mixture.
Plunger Positions (PMI and Top)
- PMI (Bottom Dead Center): The plunger is in the Louvre, free to receive fuel.
- Top: Shows the race to the closure of the fuel. The valve begins to rise for the supply.
- Start of useful career (supply): Pressure in the cylinder increases, the valve is completely open, and fuel is supplied to the injectors.
- Peak of Superior Embolo: The ramp communicates with the pressure, closing the valve against its seat.
Caudal (Flow) Modification
- Zero Supply: The vertical groove coincides.
- Partial Supply: The regulation rod runs half its course.
- Maximum Supply: The groove will match helicoidally after the useful career.
Regulatory Minimum and Maximum Limits
Minimum and maximum speed of an engine.
Operating Phases
- Starting Position: The accelerator will be placed with a manual control.
- Idle Position: Variations of the revolution position. The rod retracts to idle due to centrifugal weights because idle docks act on it.
- Full Load Position: If the scheme is very elevated, the weight separates due to the action of the springs, pushing deregulation, taking the rod to flow under.
- High Court: If it exceeds the limits set, the rod reaches the stop position and produces a device outage.
Assimilation Device
For the benefit of assimilation, the air in the cylinder is very good. When fuel is injected under full load, it resembles what the engine needs. The function of assimilation is assumed by the regulator. In this device, there are centrifugal weights between the spring plate and interior regulation springs. To end, in a supercharged engine, fuel demand rises in the lower regime. The pump flow is not sufficient, which increases the revolutions, and then a reduced flow. Optimal mast reach, no given RPM.
Advance Drive
It is a device that varies the start of injection depending on the number of revolutions. There is a delay between when the fuel is injected and when it ignites. If it lasts a long time, a sharp combustion occurs, and pressure rises too hastily. So, you have to progress to fuel injection to compensate for the delayed ignition. When the engine is standing, they are ground against depression, holding the weights in the starting position. With the engine running, as the regime increases, counterweights shift to the outside due to centrifugal force. This provokes a shift in the eccentricity, which produces a change of position of the bushing to the body. So, an advance in injection is possible, which may extend to 30 degrees in the crankshaft. When the total balances its travels.