RU2566851C1 - Ice two-drive gas pressure control valve actuation by pneumatic drive system with its charging with atmospheric air - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: claimed system comprises gas pressure control valve, and intake-exhaust valve. It allows air of fuel mix intake into ICE combustion chamber at one position and discharge of used gases at opposite position. At intake, control system opens the gas pressure control valve while intake-exhaust valve is set to intake position. Control system traces the ICE pistons current position to define opening and closing moments for every valve in compliance with load at ICE. Said system sets the valve control slide valve to position whereat gas is fed from the drive system pneumatic accumulator into the valve drive piston chamber to be actuated. Compressor piston driven by air or fuel mix compressed in combustion chamber at compression stage or combustion products at expansion stage forces air into pneumatic accumulator to charge it.

EFFECT: higher efficiency of timing control.

1 dwg

Description

FIELD OF TECHNOLOGY

The invention relates to the field of power engineering.

BACKGROUND

The closest prototype of the claimed invention is the copyright certificate 1744279 "System of single valve gas distribution of an internal combustion engine." Summary: “Summary of the invention: a one-valve gas distribution system comprises inlet and outlet manifolds mounted on the side surface of the cylinder heads and located one above the other. In the jumper between them, a flap is mounted on the hinge. The cavity of the exhaust manifold, located under the valve, is connected with the lower part of the above-piston space of the cylinder by a pulse channel. When the engine is in the intake process, the damper is in the lower position under the influence of rarefaction and dead weight and blocks the exhaust manifold. When expanding, the piston, moving down, opens the pulse channel. Under the pulse effect of the exhaust gas pressure, the flap leans back and pushes against the manifold inlet. At this point, the poppet valve opens, and the exhaust gases under the action of excessive pressure exit into the exhaust manifold, while maintaining the damper in the upper position.

OBJECT OF THE INVENTION

According to copyright certificate 1744279, the one-valve gas distribution system of an internal combustion engine does not allow controlling the moments of opening, closing and the duration of opening and closing of a gas distribution valve in order to optimize gas exchange processes in the entire range of ICE loads. The purpose of the claimed invention is to eliminate this drawback.

SUMMARY OF THE INVENTION

The essence of the claimed invention is illustrated by the description of the principle of operation of the drive of a two-drive gas distributor of the internal combustion engine by a pneumatic drive system with charging the pneumatic accumulator of the drive system of air from the atmosphere. When starting the internal combustion engine (see the figure), the piston of the internal combustion engine 1 compresses air or the fuel mixture in the combustion chamber of the internal combustion engine 2 at the compression stroke, which presses on the end surface of the piston of the pump drive 3, as a result of which it moves to the right (according to the figure). Located in the right cavity of the piston of the pump 4, the air from the atmosphere (hereinafter referred to as air) through the check valve 5 enters the pneumatic accumulator 6 (hereinafter - the pneumatic accumulator 6). Charging the pneumatic accumulator 6 occurs at the first start of the internal combustion engine. Further recharging can occur at a working cycle. When the air pressure in the pneumatic accumulator 6 reaches a value that ensures optimal functioning of the actuator of the intake-exhaust valve as a 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), and gas distribution valve of the combustion chamber 9 (hereinafter the gas distribution valve 9), air from the pneumatic accumulator 6 through the channel 10 enters the lower cavity of the piston of the stopper 11. As a result, it moves to the upper position, and the stopper 12 connected to it enters the groove of the piston of the compressor 4, blocks its movement, and the flow of air into the pneumatic accumulator 6 stops. To open the gas distribution valve of the combustion chamber 9, the control system monitors the current position of the engine piston 1 and, at the time when it is required to open it, sets the air flow control valve 13 to the position as shown in the drawing. Air from the pneumatic accumulator 6 through the channels 10, 14, 15 enters the upper cavity of the piston of the gas distribution valve of the combustion chamber 16 (hereinafter referred to as the piston of the gas distribution valve 16), connected by the rod 17 to the gas distribution valve 9, as a result of which it takes the lower position - it opens. Air or fuel mixture through the air intake channel or the fuel mixture 18, the valve clearance 7 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 exhaust air is discharged through the channels 19, 20 into the atmosphere. When lowering the air pressure in the pneumatic accumulator 6 below a value that ensures optimal functioning of the actuator of the intake / exhaust valve and the gas distribution valve 9, the spring of the stopper 21 moves the piston of the stopper 11 and the stopper 12 to the lower position. At one of the subsequent strokes of the intake of air into the combustion chamber of the engine 2, the spring of the piston of the compressor 22 translates the piston of the drive of the compressor 3 and the piston of the compressor 4 to the original, left, position for charging the pneumatic accumulator 6. In this case, air from the atmosphere through the non-return valve 23 is sucked into the right cavity of the piston of the compressor 4. The compressor is ready for the next cycle of recharging the pneumatic accumulator 6. Upon the arrival of the piston of the internal combustion engine 1 to the bottom dead center, the control system puts the spool 13 into the right position. Air from the pneumatic accumulator 6 through the channels 10, 14 and 19 enters the lower cavity of the piston of the drive of the gas distribution valve 16, and the gas distribution valve 9 closes. The exhaust air from the upper cavity of the piston of the valve 16 through the channels 15, 24 is discharged into the atmosphere. Before the exhaust cycle of the exhaust combustion products, the control system closes valve 7 and opens the valves 8 and 9. For this, the control system moves the spool control air flow 25 to the left position. Air from the pneumatic accumulator 6 through the channels 10, 26, 27 enters the left cavity of the piston of the inlet-exhaust valve valve 28. Under the action of the air that has entered this cavity, the piston of the inlet-exhaust valve valve 28, valves 7 and 8 connected in series with it by rods 29, 30 move to the right. As a result, valve 7 closes and valve 8 opens. In this case, the exhaust air from the right cavity of the piston of the inlet-outlet valve drive 28 through the channels 31, 32 is discharged into the atmosphere. To exhaust the exhaust products of combustion from the combustion chamber of the engine 2, the control system at the beginning of the exhaust cycle of the combustion products puts the slide valve 13 to the left position and, as shown above, the gas distribution valve 9 opens. From the combustion chamber of the internal combustion engine 2, the exhaust products of combustion through the exhaust exhaust channel 33 are thrown into the exhaust manifold. Thus, the claimed method of driving a gas distribution valve and an intake-exhaust valve of a two-drive gas distributor of an internal combustion engine allows you to control the opening, closing and residence times of each of these valves in the interest of optimizing gas exchange processes in the entire load range on an internal combustion engine.

SUMMARY OF THE INVENTION

A method of actuating valves of a two-drive gas distributor of an internal combustion engine with a pneumatic drive system with charging a pneumatic accumulator of a gas drive system from a compensating pneumatic accumulator including a control system, a gas distribution valve, an intake-exhaust valve as a part of an air or fuel mixture valve connected by a rod and an exhaust exhaust valve, a spool gas flow control valve, pneumatic accumulator drive system, spool y the gas flow control valve for the intake-exhaust valve, a pneumatic accumulator, a gas distribution valve piston, an intake-valve valve piston, a compressor piston and a compressor drive piston, characterized in that the control system installs a valve for air or fuel mixture into the combustion chamber of the internal combustion engine inlet-outlet in the position of the open intake valve and the closed exhaust valve, for the exhaust of exhaust products of combustion the control system is installed the inlet-outlet valve to the position of the closed intake valve and the open exhaust valve, for which the control system monitors the current position of the pistons of the internal combustion engine, and, in accordance with the load on the internal combustion engine, determines for each valve of the two-valve gas distributor of the internal combustion engine and being in an open position, after which, to open the gas control valve at a time determined by the control system, the control topic sets the gas flow control valve of the gas distribution valve to a position in which gas from the pneumatic accumulator of the drive system enters the piston cavity of the gas distribution valve, when gas enters into which the gas distribution valve is opened, and the gas distribution valve opens to close the gas distribution valve at a time control system, the control system sets the gas flow control valve dividing valve to a position in which gas from the pneumatic accumulator of the drive system enters the piston cavity of the gas distribution valve drive, when gas is supplied to which the gas distribution valve is closed, and the gas distribution valve is closed to open the air intake valve or fuel mixture and close the exhaust valve the timing determined by the control system, the control system sets the intake valve gas flow control valve - release to a position in which gas from the pneumatic accumulator of the drive system enters the inlet-outlet valve into the piston cavity of the drive, when gas enters into which the air intake valve or fuel mixture opens and the exhaust gas exhaust valve closes, and the air or fuel mixture intake valve opens, and the exhaust valve is closed to close the air intake valve or fuel mixture and open the exhaust valve, at the time In accordance with the control system, the control system sets the gas flow control valve of the intake / exhaust valve to a position in which gas from the pneumatic accumulator of the drive system enters the piston cavity of the drive intake / exhaust valve, when the gas enters it, the air intake valve or the fuel mixture closes and opening the exhaust valve of the exhaust combustion products, and the intake valve of the air or fuel mixture closes, and the exhaust valve of the combustion products opens, when When opening and closing the gas distribution valve and the intake-exhaust valve, the exhaust gas from the opposite cavity of the gas distribution valve piston and the intake-exhaust valve piston enters the compensation pneumatic accumulator, at the intake stroke of the air or the fuel mixture or at the exhaust cycle of the combustion products, the compressor piston moves to the initial position for supplying gas to the pneumatic accumulator of the drive system, and gas from the compensation pneumatic accumulator is sucked into the piston cavity the compressor, at the compression stroke of air or the fuel mixture, compressed air or the fuel mixture in the combustion chamber, or at the working cycle, the combustion products drive the compressor drive piston, and gas from the compressor piston cavity charges the pneumatic accumulator of the drive system.

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

Drawing. Schematic diagram of the drive of a two-drive gas distributor of the internal combustion engine with a pneumatic drive system with charging the pneumatic accumulator of the drive system with air from the atmosphere.

1 - piston ICE 1; 2 - combustion chamber of the internal combustion engine 2; 3 - the piston of the compressor drive; 4 - compressor piston; 5, 23 - check valve; 6 - pneumatic accumulator; 7, 8 - valve; 9 - gas distribution valve of the combustion chamber; 10, 14, 15; 19, 20, 24, 26 27, 31, 32 - channel; 11 - stopper piston; 12 - stopper; 13, 25 - spool control air flow; 16 - piston drive gas distribution valve of the combustion chamber; 17, 29; 30 - stock; 18 - channel inlet air or fuel mixture; 21 - a spring of a stopper; 22 - compressor piston spring; 28 - a piston of an inlet-outlet valve actuator; 33 - channel exhaust exhaust products.

Claims (1)

The method of driving a two-drive gas distributor of an internal combustion engine with a pneumatic drive system with charging the pneumatic accumulator of the air drive system from the atmosphere, including a control system, a gas distribution valve, an intake-exhaust valve as a part of an air or fuel mixture valve connected by a rod and an exhaust exhaust valve, a flow control valve valve air valve, actuator air accumulator, valve air flow control valve an intake-exhaust manifold, a gas distribution valve actuator piston, an intake-exhaust valve actuator piston, a compressor piston and a compressor drive piston, characterized in that for controlling the air or fuel mixture into the combustion chamber of the internal combustion engine, the control system installs an intake valve with the gas valve open exhaust to the position of the open intake valve and the closed exhaust valve, and for the release of exhaust combustion products, the control system with an open gas distribution This valve sets the intake-exhaust valve to the position of the closed intake valve and open exhaust valve, for which the control system monitors the current position of the pistons of the internal combustion engine, and, in accordance with the load on the internal combustion engine, determines for each valve of the two-valve gas distributor of the internal combustion engine opening, closing and being in the open position, after which it is determined to open the gas distribution valve at a time With the control system, the control system sets the air flow control valve of the gas distribution valve to the position where the air from the pneumatic accumulator of the drive system enters the piston cavity of the gas distribution valve, when air enters into which the gas distribution valve is opened, and the gas distribution valve opens, and to close the gas distribution valve at a point in time determined by the control system, the control system sets the ash gas flow control nickel to the position where the air from the pneumatic accumulator of the drive system enters the piston cavity of the gas distribution valve, when air enters into which the gas control valve is closed and the gas control valve closes to open the air intake valve or fuel mixture and close the valve exhaust emissions at a time determined by the control system, the control system is installed the inlet-exhaust valve air flow control valve to a position in which air from the pneumatic accumulator of the drive system enters the intake piston cavity of the intake-exhaust valve, when air enters into which the intake valve of the air or fuel mixture is opened and the exhaust valve is closed, and the air or fuel mixture inlet valve opens and the exhaust exhaust valve closes to close the air or fuel mixture valve and open the the exhaust gas exhaust gas apana, at a time determined by the control system, the control system sets the air flow control valve of the intake-exhaust valve to a position in which air from the pneumatic accumulator of the drive system enters the piston cavity of the drive intake-exhaust valve, when air enters closing the air intake valve or the fuel mixture and opening the exhaust valve of the exhaust products of combustion, and the air intake valve or the fuel mixture closes, and the exhaust valve for the exhaust of combustion products opens, while opening and closing the gas distribution valve and the intake-exhaust valve, the exhaust air from the opposite cavity of the piston of the gas distribution valve and the piston of the drive of the intake-exhaust valve is released into the atmosphere.