RU2587516C1 - Method of internal combustion engine reversing starter mechanism and hydraulic drive system two valve gas distributor with charging of pneumatic accumulator into fluid from compensating hydraulic accumulator - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: invention relates to reversal of internal combustion engines (ICE). This invention consists in fact that for reversal of ICE in preset direction of rotation of crankshaft control system with closed gas-distributing valve and ICE piston in upper dead point (UDP) independent of mechanical connection with ICE crank fuel feed system supplies fuel in ICE combustion chamber and ignites it with ignition plug. At that, independent of mechanical connection with ICE crank fuel feed system in ICE combustion chamber is applied, for example pneumatic, hydraulic, piezoelectric etc. after stop and piston direction change to opposite one and after combustion products expansion hydraulic drive system of two valve gas distributor provides gas exchange in internal combustion engine with specified direction of rotation of crankshaft. Two valve gas distributor consists of gas distributing valve and connected to stock inlet and outlet valves, and hydraulic accumulator is charged with fluid from compensating hydraulic accumulator.

EFFECT: higher efficiency of reverse system operation.

1 cl, 1 dwg

Description

FIELD OF TECHNOLOGY

The invention relates to the field of power engineering.

BACKGROUND

The closest prototype of the claimed invention is patent 2536651 “Method for reversing an internal combustion engine with a reversible starter and a gas distribution valve and fuel injector drive mechanism with charging its pneumatic accumulator with compressed air”.

Abstract to patent 2536651: "The invention relates to the field of control of an internal combustion engine (ICE). The technical result is to increase the efficiency of control when reversing the internal combustion engine. The essence of the invention lies in the fact that the control system connects the shaft of the reversing starter mechanism with the engine crankshaft and rotates it. At the end of the compression stroke, the control system directs air from the pneumatic accumulator into the cavity of the plunger drive of the fuel injector, and fuel is injected into the combustion chamber with the ignition of its spark plug. Then the system and disconnects the shaft of the reversing starter with the engine crankshaft. After combustion, the system directs air from the pneumatic accumulator into the piston cavity of the exhaust valve actuator and opens it. "The pneumatic control system for gas distribution and fuel injection allows the internal combustion engine to operate efficiently both in one and in the opposite direction of shaft rotation."

OBJECT OF THE INVENTION

The reversal of the internal combustion engine (ICE) of the prototype according to patent 2536651 is carried out by a reversing starter and a drive mechanism for a gas distribution valve and fuel injector with charging its pneumatic accumulator with compressed air.

The purpose of the claimed invention is to provide reversal (ICE) by a starter mechanism and a hydraulic drive system of a two-valve valve with charging the system accumulator with liquid from a compensation accumulator.

SUMMARY OF THE INVENTION

The essence of the claimed invention is illustrated by a description of the principle of operation of a two-valve gas distributor of an internal combustion engine by a hydraulic drive system with charging the accumulator of the system with liquid from a compensation accumulator.

Charging the accumulator of the system with liquid is carried out as follows (see drawing). When starting the internal combustion engine, the internal combustion engine piston 1 compresses air or fuel mixture in the combustion chamber of the internal combustion engine 2 at the compression stroke, which presses on the left end surface of the piston of the pump drive 3, as a result of which it moves to the right (according to the drawing). Located in the right cavity of the piston of the pump 4, the working fluid (hereinafter - the fluid) through the check valve 5 enters the accumulator of the drive system 6 (hereinafter - the accumulator 6) and charges it. The accumulator 6 is charged at the first start of the internal combustion engine, and further recharging is performed at working cycles. After the fluid pressure in the accumulator 6 reaches a value that ensures optimal functioning of the two-valve gas distributor as part of the air intake valve or fuel mixture 7 (hereinafter referred to as valve 7) and the exhaust valve 8 (hereinafter referred to as valve 8), as well as the gas distribution valve 9 , the liquid from the accumulator 6 through the channel 10 enters the lower cavity of the piston of the stopper 11. As a result, the piston of the stopper 11 moves to the upper position, and the stopper 12 connected to it enters the undercut of the piston I pump 4, blocks its movement, and the flow of fluid into the accumulator 6 stops.

In the initial position, the intake valve 7 is open, and the exhaust valve 8 and the gas distribution valve 9 are closed. Gas exchange in the internal combustion engine is as follows. To ensure a suction stroke, the control system sets the gas distribution valve 9 in the open position. For this, the control system sets the spool 13 to the position as shown in the drawing. The fluid from the accumulator 6 through channels 10, 14, 15 enters the upper cavity of the piston of the gas distribution valve 16, which is connected by the rod 17 to the gas distribution valve 9, as a result of which it occupies the lower position - opens. Air or fuel mixture through the air inlet channel 18 and the open gas distribution valve 9 enters the combustion chamber of the engine 2. From the lower cavity of the piston of the gas distribution valve 16, the spent fluid flows through the channels 19, 20, 21 and the check valve 22 into the compensation accumulator 23. When lowering the pressure of the liquid in the accumulator 6 is lower than the value that ensures the optimal functioning of the valves of the three-valve valve, the spring of the stop 24 moves the piston of the stop 11 and the stop 12 to the lower position Ie. At one of the subsequent strokes of the intake of air or fuel mixture into the combustion chamber of the engine 2, the spring of the piston of the pump 25 translates the piston of the drive of the pump 3 and the piston of the pump 4 to the original, left, to recharge the accumulator 6, position. The fluid from the compensation accumulator 23 is supplied through the non-return valve 26 to the right cavity of the pump piston 4. The pump is ready for the next cycle of recharging the accumulator 6. Upon the arrival of the engine ICE piston 1 to the bottom dead center, the control system moves the spool 13 to the right position. The fluid from the accumulator 6 through the channels 10, 14, 19 enters the lower cavity of the piston of the gas distribution valve 16, and the gas distribution valve 9 closes. The spent fluid from the upper cavity of the piston of the valve 16 through the channels 15, 27, 21 and the check valve 22 enters the compensation accumulator 23. The compression cycle begins, and then the expansion cycle of the combustion products. To ensure the cycle of exhaust exhaust products, the control system puts the intake valve 7 and exhaust valve 8 in the right position, for which sets the valve 28 in the left position. The fluid from the accumulator 6 through channels 10, 29, 30 enters the left cavity of the piston of the intake valve actuator and exhaust valve 31 and moves the intake valve 7 connected by the rod 32 and the exhaust valve 9 connected by the rod 33 to the right. The inlet valve 7 closes and the exhaust valve 8 opens. Fluid from the right cavity of the piston of the intake valve actuator and exhaust valve 31 through channels 34, 35, 21 and through the check valve 22 enters the compensation accumulator 23. The opening of the gas distribution valve 9 is shown above. As a result, the exhaust combustion products from the combustion chamber of the engine 2 through the exhaust exhaust channel 36 are thrown into the exhaust manifold. The problems of preventing fluid leakage through gaps along the generatrixes of the surfaces of the rods 17, 32, 33 are solved by bellows 37, 38, 39.

The start of the internal combustion engine for operation in the main mode is carried out by a non-reversible (traditional) starter mechanism, then the starter. To change the rotation of the ICE crankshaft in the opposite direction - reversing - the control system connects the starter shaft to the ICE crankshaft, turns on the starter, which rotates the ICE crankshaft and with the gas distribution valve 9 closed and the ICE piston 1 in the vicinity of top dead center delivers fuel to the ICE 2 combustion chamber This uses a fuel supply system independent of mechanical communication with the ICE crankshaft, for example pneumatic, hydraulic (2422667, 2544116, 2536650) or piezoelectric, etc. After stopping and changing the direction of movement of the piston of the internal combustion engine 1 as a result of the action of the combustion products and after completion of the expansion of the combustion products, the hydraulic drive system of the two-valve gas distributor with charging the accumulator of system 6 with liquid from the compensation accumulator 23 with a gas distribution valve 9 and the inlet 7 and outlet 8 valves connected by a rod 33 provides gas exchange in the internal combustion engine for a given direction of rotation of the crankshaft.

SUMMARY OF THE INVENTION

The method of reversing the internal combustion engine with a starter mechanism and a hydraulic system for a two-valve gas distributor with charging the hydraulic accumulator of the system with liquid from a compensating hydraulic accumulator, including a control system, a two-valve gas distributor in the gas distribution valve and the inlet and outlet valves connected by a rod, a starter mechanism independent of mechanical connection with the crankshaft internal combustion fuel supply system, spark plug and compensating accumulator, characterized in that the control system connects the shaft of the starter mechanism with the crankshaft of the internal combustion engine, rotates its crankshaft and, if the direction of rotation of the shaft of the starter mechanism does not coincide with the set direction of rotation of the crankshaft of the internal combustion engine, at the compression stroke with the valve closed and the position piston of an internal combustion engine in the vicinity of the top dead center fuel supply system, independent of mechanical connection with the count by the collapse of the internal combustion engine, feeds fuel into the combustion chamber of the internal combustion engine, if necessary ignites the fuel with a spark plug, disconnects the shaft of the starter mechanism with the crankshaft of the internal combustion engine, after stopping and changing the direction of movement of the piston of the internal combustion engine to the opposite as a result of combustion products and after completion of expansion of combustion products, hydraulic system of a two-valve gas distributor with hydraulic accumulator charging A system torus with a liquid from a compensation accumulator by a gas distribution valve and an inlet valve and an exhaust valve connected by a rod provides gas exchange in an internal combustion engine for a given direction of rotation of the crankshaft.

DETAILED DESCRIPTION OF THE INVENTION

Materials and technology for the implementation of the claimed invention do not go beyond the scope of modern capabilities. At the current level of development of automatic control systems, the creation of a control system for the claimed invention is quite an ordinary task.

GRAPHIC MATERIAL

The drawing shows a schematic diagram of a control system for exhaust gas recirculation in an internal combustion engine by a hydraulic drive system of a two-valve gas distributor with charging the hydraulic accumulator of the system with liquid from a compensating hydraulic accumulator.

1 - piston ICE 1; 2 - combustion chamber of the internal combustion engine 2; 3 - the piston of the pump drive; 4 - pump piston; 5, 22, 26 - check valve; 6 - accumulator; 7, 8 - valve; 9 - gas distribution valve; 10, 14, 15, 19, 20, 21, 27, 29, 30, 34, 35 - channel; 11 - stopper piston; 12 - stopper; 13, 28, - spool of fluid flow control; 16 - the piston of the valve timing; 17, 32, 33 - stock; 18 - channel air intake; 23 - compensation accumulator; 24 - a spring of a stopper; 25 - spring of the piston of the pump; 31 - piston of the intake valve and exhaust valve; 36 - channel exhaust exhaust products; 37, 38, 39 - bellows.

Claims (1)

The method of reversing the internal combustion engine with a starter mechanism and a hydraulic system for a two-valve gas distributor with charging the hydraulic accumulator of the system with liquid from a compensating hydraulic accumulator, including a control system, a two-valve gas distributor in the gas distribution valve and the inlet and outlet valves connected by a rod, a starter mechanism independent of mechanical connection with the crankshaft internal combustion fuel supply system, spark plug and compensating accumulator, characterized in that the control system connects the shaft of the starter mechanism with the crankshaft of the internal combustion engine, rotates its crankshaft and, if the direction of rotation of the shaft of the starter mechanism does not coincide with the set direction of rotation of the crankshaft of the internal combustion engine, at the compression stroke with the valve closed and the position piston of an internal combustion engine in the vicinity of the top dead center fuel supply system, independent of mechanical connection with the count by the collapse of the internal combustion engine, feeds fuel into the combustion chamber of the internal combustion engine, if necessary ignites the fuel with a spark plug, disconnects the shaft of the starter mechanism with the crankshaft of the internal combustion engine, after stopping and changing the direction of movement of the piston of the internal combustion engine to the opposite as a result of combustion products and after completion of expansion of combustion products, hydraulic system of a two-valve gas distributor with hydraulic accumulator charging A system torus with a liquid from a compensation accumulator by a gas distribution valve and an inlet valve and an exhaust valve connected by a rod provides gas exchange in an internal combustion engine for a given direction of rotation of the crankshaft.

Images