Device for turning off the flow of fuel in an internal combustion engine

 

(57) Abstract:

Usage: in engine. The inventive device for turning off the flow of fuel in an internal combustion engine includes first and second power pneumatic cylinders 3 and 8, the electromagnetic valve 1 is installed in the pipeline 2, the valve 4 is installed in the intake pipe 5 and kinematically associated with the piston rod of the first pneumatic cylinder 3. The piston rod of the second pneumatic cylinder 8 is kinematically connected with the rail, the fuel pump 9 of the engine. Solenoid valve 1 with an electric switch 10 is placed on the inlet pipe 5 between the pneumatic receiver 14 and Rodless cylinders cavity of the first pneumatic cylinder 3. Pneumatic receiver 14 is connected with Rodless cylinders cavity of the first pneumatic cylinder 3 and the rod cavity of the second pneumatic cylinder 8, Rodless cylinders, the last cavity communicated with the intake pipe 5 after the bypass pipe 6. The last made with the possibility of messages inlet pipe 5 with the atmosphere, and the flow cross section of the bypass pipe is arranged to pass air volume required for RBC diesel engines.

A device for turning off the flow of fuel to the internal combustion engine, containing the first and second power pneumatic cylinders, each of which is made with the piston and rod with rod and Rodless cylinders, cavities, solenoid valve with electrical switch on the foot control valve, kinematically associated with the piston rod of the first pneumatic cylinder, pneumatic receiver associated pipelines with Rodless cylinders cavity of the first pneumatic cylinder and rod cavity of the second pneumatic cylinder, a rod last kinematically connected with rail, fuel pump motor, solenoid valve installed in the pipeline between the pneumatic receiver and Rodless cylinders cavity of the first pneumatic cylinder.

The disadvantage of the prototype is the lack of reliability and the complexity of the design task of the invention is to enhance reliability of the device and simplifying the design.

The problem is solved in that the device for turning off the flow of fuel in an internal combustion engine includes first and second power pneumatic cylinders, each of which is a back panel, the valve is kinematically associated with the piston rod of the first pneumatic cylinder, pneumatic receiver associated pipelines with Rodless cylinders cavity of the first pneumatic cylinder and rod cavity of the second pneumatic cylinder, the piston rod last kinematically connected with rail, fuel pump motor, solenoid valve installed in the pipeline between the pneumatic receiver and Rodless cylinders cavity of the first pneumatic cylinder, and a valve installed in the intake pipe of the engine, the intake manifold is equipped with a bypass pipe with the first shutoff valve, a bypass pipe configured to messages intake pipe after the valve with the atmosphere Rodless cylinders cavity of the second pneumatic cylinder is communicated with the intake manifold after the bypass pipe, pneumatic receiver connected to the rod cavity of the second pneumatic cylinder via a second shut-off valve, the cavity of the crankcase of a diesel engine in communication with the atmosphere through the breather and the bypass valve, an electric switch located on the accelerator pedal and the throttle cross section of a bypass pipe is arranged to pass the volume in which; is a of Fig.2 a node that connects the crankcase to the atmosphere.

Device for turning off the flow of fuel in an internal combustion engine includes an electromagnetic valve 1 is installed in the pipeline 2. Last communicated with Rodless cylinders cavity of the first pneumatic cylinder 3. Valve 4 installed in the intake manifold 5 of the engine, kinematically connected with the piston rod of the first pneumatic cylinder 3. The bypass pipe 6 is arranged to messages inlet pipe 5 when the valve 4 with the atmosphere. The pipe 7 connects the inlet pipe 5 with Rodless cylinders cavity of the second pneumatic power cylinder 8, the piston rod of which is kinematically connected with the rail, the fuel pump 9 of the engine. The first shut-off valve 18 is installed on the bypass pipe 6. Rodless cylinders cavity of the second pneumatic power cylinder 8 through the pipe 12 and the second shut-off valve 13 is in communication with the pneumatic receiver 14. The latter is in turn communicated through the pipe 2 with the electromagnetic valve 1 with Rodless cylinders cavity of the first pneumatic power cylinder 3. The electric switch 10 of the electromagnetic valve 1 is placed on the accelerator pedal 11. Polock">

The device operates as follows.

When pressing on the accelerator pedal 11 electric switch 11 interrupts the current to the solenoid valve 1. When releasing the accelerator pedal 11 to turn on the electric switch 10 and the current flows to the electromagnetic valve 1, which, opening, perepuskat compressed air to the first pneumatic cylinder 3, which closes the barrier 4 in the intake pipe 5. The cross section of the bypass pipe 6 is small and the air does not have time to passivate at high engine speeds, so the vacuum in the intake pipe 5 is increased and the pipeline 7 is transmitted to the second pneumatic cylinder 8, the piston of which, overcoming the resistance of the spring in the second pneumatic cylinder 8, shift rail fuel pump 9 of the engine and the car moves off fuel and engine braking. The bypass pipe 6 passes this quantity of air, which is enough for the internal combustion engine was idling and a little more high speed without creating a vacuum in the cylinders of the engine, which helps off the fuel supply. The internal cross section of the bypass trobada 5 is reduced due to the fact, that the bypass pipe 6 manages to pass air and the spring within the second pneumatic cylinder 8 is enough force to return the piston to its original position, and with it the rail of the fuel pump 9, and the fuel supply to the internal combustion engine is restored. When opening the second shut-off valve 13 installed in the driver's cabin, compressed air enters the second pneumatic cylinder 8 and the engine stalls. So there is a stop of the engine on vehicles parked on the Parking lots.

When the vehicle is moving, when it closes the valve 4 and the fuel supply to the engine is terminated, the cylinders of the engine vacuum is formed. At this point in the casing 16 of the engine there is no pressure, because the combustion in the engine cylinders, no, there is no breakthrough of gases in the crankcase, so the bypass valve 17 is closed. When closed, the valve 17 in the casing 16 of the engine creates a vacuum. The vacuum is in the engine cylinders when the valve is closed 4 because the suction air from the crankcase into the combustion chamber between the cylinder wall and piston during the suction stroke of, and during the discharge stroke is the filling of the cylinder through the muffler atmospheric air, so that m is Tenkai cylinder and piston air is sucked, as well as the oil in the crankcase 16 of the engine.

DEVICE FOR turning off the flow of FUEL TO the INTERNAL COMBUSTION ENGINE, containing the first and second power pneumatic cylinders, each of which is made with the piston and rod with rod and Rodless cylinders, cavities, solenoid valve with an electric circuit breaker, damper, kinematically associated with the piston rod of the first pneumatic cylinder, pneumatic receiver associated pipelines with Rodless cylinders cavity of the first pneumatic cylinder and rod cavity of the second pneumatic cylinder, the piston rod last kinematically connected with rail, fuel pump motor, solenoid valve installed in the pipeline between the pneumatic receiver and Rodless cylinders cavity of the first pneumatic cylinder, characterized in that what valve installed in the intake pipe of the engine, the intake manifold is equipped with a bypass pipe with the first shutoff valve, a bypass pipe configured to messages intake pipe after the valve with the atmosphere, Rodless cylinders, the cavity of the second pneumatic cylinder is communicated with the intake manifold after the bypass pipeline, pneum, moreover, the cavity of the crankcase communicates with the atmosphere through the breather and the bypass valve, an electric switch located on the accelerator pedal and the throttle cross section of a bypass pipe is arranged to pass air volume required for engine operation at idle.

 

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