RU65975U1 - MULTI-CYLINDER INTERNAL COMBUSTION ENGINE - Google Patents

Abstract

The technical solution relates to mechanics, primarily to internal combustion engines, in particular to devices for filling them, and more particularly to power devices for engines with gaseous fuel. The supply of a separator 10 of a multi-cylinder internal combustion engine symmetrically placed in the pipe 5, comprising a head 1 with valves 8 and windows 9 connected to the pipe 5, will allow to create a simple and reliable engine design with optimal properties at low cost of its production, as it is rationally executed and placed elements of the intake system.

Description

The technical solution relates to mechanics, primarily to internal combustion engines, in particular to devices for filling them, and more particularly to power devices for engines with gaseous fuel.

It is widely known that the first practically suitable engine was built by the Frenchman Lenoir in 1860 in Paris and operated with gas (see, for example, the book by I. Gribov. Internal combustion engines, vol. I, TRANSPET, NKPS, M. 1927 p. .11-13). At the Paris exhibition, the Otto gas engine was presented, which was the prototype internal combustion engine of our time (pp. 16-17). Known methods and industrial devices for preparing a gas-air mixture in which gaseous fuel enters either the carburetor, or between the air filter and the air damper, or between the throttle valves and the intake manifold of the engine (Grigoriev E.G. and other gas-filled automobiles M. Engineering, 1989 pg. 147-150).

Intake manifolds according to US 1981976, 1957561, 1990662, 2066923, 2241461, 2175438, 2571254, 2587360, 2611353, 2619945, 2704055, 2882875, 2947293; FR 820798, 1145098, 1244187 provide the supply of charge and its distribution.

The air damper for internal combustion engines according to US 2744510 is placed under the intake pipe, and the damper according to US 2989956 above it. The inlet device of an automobile engine according to JP 1-44890 comprises an air control damper with a vacuum actuator and an electromagnetic valve.

The collector according to US 4301775 consists of three parts, while the inlet part is provided with a mounting flange, and the middle part with the aforementioned forms several gas pipes. The multi-cylinder internal combustion engine intake system according to JP 53-62555 comprises a head with several inlet nozzles communicating with the cylinder cavities through the intake valve. The engine intake system according to JP 58-83182 provides a swirl of the intake mixture.

The gaseous fuel engine power device of US 2671012 comprises a gas flow control system. Control system

The internal combustion engine for operating on compressed natural gas according to RU 51402 contains an electronic control unit, a crankshaft speed sensor and a methane heater with an integrated high pressure sensor and a gas meter. A device for supplying fuel to a gas ICE according to SU 458023 contains a gas inlet valve. In a gas engine power supply device according to RU 2096633, gas is supplied through the spark plug.

Known internal combustion engine containing at least one set of piston-cylinder, in which the cylinder is able to communicate with air and a gas source through a fuel supply device and an ignition electrode (see, for example, WO 93/23662).

This engine is equipped with an inlet device comprising an inlet valve and an electrode integrated into one assembly, which can lead to either its destruction or dismantling. The advantages described by the applicant WO 93/23662 with the conversion of two types of engines (with spark and volume ignition of the mixture) are hardly feasible due to the size of the nests, both under the spark plug and the nozzle. The operability of the valve solenoid coil is low due to its location and placement. Moreover, its size and shape prevent the free flow of gas through the valve, which can significantly affect the power properties of the engine.

Known internal combustion engine containing at least one set of piston-cylinder, in which the cylinder is able to communicate with air and a gas source through a fuel supply device, as well as a candle (see, for example, SU 526718).

In this engine, a fuel supply device is provided, comprising a controlled main gas valve, separating the exhaust and inlet channels, one of which is directly connected to the cylinder cavity. Since the aforementioned candles and a valve are located in a housing mounted on the cylinder head, essentially no efficient arrangement of gas exchange valves can be achieved. The operability of the main gas valve actuator is low due to its location and placement. Moreover, its size and shape prevent the free flow of gas through the valve, which can significantly affect the power properties of the engine. In addition, the access of the spark into the cylinder is significantly difficult, which also affects the performance of the engine.

Known internal combustion engine containing at least one set of piston-cylinder, in which the cylinder is able to communicate with air and a gas source through a fuel supply device, a spark plug, and also a spacer (see, for example, SU 1333810).

This engine provides a fuel supply device, the housing of which is designed as a spacer. The fuel supply device comprises a controllable fuel emulsion supply valve. The device provides for the flow of the gas mixture into the chamber through an adjustable

screw channel associated with the cavity of the cylinder. The presence of a controlled valve, adjusting screws for each cylinder also complicates the design. Of course, the size and weight of this spacer are large. Since the said elements are placed in a spacer installed on the intake manifold, essentially no efficient delivery of the fuel mixture can be achieved. Due to the difficult access to the mentioned adjusting screws, as well as the adjusting clutch of the feed valve, the operation of the device is complicated. The operability of the valve actuator is small due to its location and placement. Moreover, its placement prevents the flow of the mixture through the valve, which can significantly affect the power properties of the engine. Essentially no gas exchange equipment has been proposed. Moreover, the combination of mixture and exhaust gases in this device not only affects the reduction of power properties, but also leads to an increase in the cost of its production.

Known internal combustion engine containing at least one set of piston-cylinder, in which the cylinder has the ability to communicate with air and a gas source through a fuel supply device, as well as a candle (see, for example SU 767380).

This engine is a diesel-gas four-stroke ICE. Its intake device contains a self-acting gas valve separating the exhaust and intake channels, one of which is connected with the cylinder cavity. Since the aforementioned candles and a valve are located on the same chamber of the prechamber equipped with a cooling casing and installed in the cap rather than on the cylinder head, this complicates the design, and the placement of gas exchange valves cannot be achieved in essence. Of course, the dimensions and mass of this case are large. The operability of the valve actuator is small due to its location and placement. Moreover, its size and shape prevent the free flow of gas through the valve, which can significantly affect the power properties of the engine. In addition, the access of the spark into the cylinder is significantly difficult, which also affects the performance of the engine. Since the case is a separate complex unit, the cost of its production is high.

The gas-air unit for a gas engine according to RU 28383 contains a mixing device with a diffuser and a throttle valve, as well as an economizer with a main and additional gas channels, equipped with a spool connected to the throttle valve, while a correcting gas valve is installed in the main channel, and in the additional channel it is adjustable dispenser. The presence of numerous control and corrective elements leads not only to the complexity of the design of the unit, but also to the low reliability of its operation. The system for injecting natural gas into an internal combustion engine according to RU 49128, consisting of an injection unit, a gearbox and a mixing unit,

contains a gas distribution unit, ejectors in the mixing unit, made in the form of a block and installed after the intake manifold. The collector is made in the form of a nozzle, and the injector is in the form of controlled electromagnetic valves, the number of which corresponds to the number of cylinders. As indicated above, the multiplicity of supply and control elements leads not only to the complexity of the system, but also to the low reliability of its functioning. It should be noted that the applicability of the system is limited.

At the end of the intake manifold of the internal combustion engine according to RU 43916, an annular groove is made, in the walls of which holes are made for the passage of the gas-air mixture. With this embodiment, the collector can be used for only one cylinder. Obviously, in a multi-cylinder engine, such a design is complex and requires either a separate air supply for each cylinder, or a combination of separate inlet pipes to its manifold.

Despite the long development path and numerous technical solutions cited relating to internal combustion engines operating with gas, their structures, their components and assemblies, there is no simple and reliable engine design made in a small size with a small weight and at low cost for its production.

Known multi-cylinder internal combustion engine (see RU 28735), containing a cylinder head with valves and windows in communication with the intake pipe.

In the gas intake system of this engine, gas from the line enters through a curved pipe into a receiver containing intake pipes, while the receiver body and pipe are made in the form of a single, non-separable, monolithic part. The geometric parameters of these elements mentioned in RU 28735 are obviously acceptable only for a specific engine design, which limits its functionality. The solidity and inseparability of this block will lead to unjustified costs in production. In this system, the design of connecting the pipe and pipes to the engine elements has not been worked out, and this will not only complicate the layout of its units, at least because of their shape, but also reduce the reliability of the multi-cylinder internal combustion engine.

The task is to create a simple and reliable design of a multi-cylinder engine with optimal properties at low cost of its production.

Creating a simple and reliable engine design with optimal properties at low costs for its production is ensured by the rational execution and placement of intake system elements.

For this, a multi-cylinder internal combustion engine containing a cylinder head with valves and windows in communication with the intake pipe is equipped with an intake splitter symmetrically placed in the pipe.

The supply of the inlet splitter symmetrically placed in the pipe with a multi-cylinder internal combustion engine containing a cylinder head with valves and windows connected to the inlet pipe will allow creating a simple and reliable engine design with optimal properties at low production costs, since the elements of the intake system are rationally made and placed .

The shape of the separator, the lateral surfaces of which are located at an angle and radius, contributes to an increase in the efficiency of air supply.

The stationarity of gas-dynamic processes is enhanced by the supply of an engine with an vibration damper mounted on the inlet pipe symmetrically to the separator.

The stationarity of gas-dynamic processes is also enhanced by the supply of the engine with a funnel installed in the vibration damper.

Depicted on:

figure 1 - engine;

figure 2 - engine, transversely;

figure 3 - spacer;

figure 4 - spacer with a valve;

5 is an inlet pipe;

6 is a separator.

The engine comprises a head 1 (FIG. 1) of cylinders 2. Pistons 3 are installed in the cylinders 2. The cavity of the cylinder 2 is capable of communicating with the air and gas source 4. Air enters the cavity of the cylinder 2 through the inlet pipe 5. The engine contains an ignition electrode 6 (FIG. 2). Between the pipe 5 and the head 1 is placed its spacer 7 (figure 3). The spacer 7 is made with valves 8 (figure 4) and windows 9. Windows 9 are in communication with the pipe 5.

The engine is equipped with a separator 10 symmetrically placed in the pipe 5 (Fig. 5).

Increasing the efficiency of air supply contributes to the shape of the separator 10. Its lateral surfaces 11 (Fig.6) are located at an angle of 12 and a radius of 13.

Increasing the stationarity of gas-dynamic processes is facilitated by the supply of the engine with an oscillation damper 14 mounted on the pipe 5 symmetrically to the separator 10.

The stationary gas-dynamic processes are also enhanced by the supply of the engine with a funnel 15 installed in the vibration damper 14.

The spacer 7 is made with a thread 16 at the ends for mounting the fitting 17 and the plug 18. In the spacer 7, a thread 19 is made for fastening the pipe 20, which is simple and reliable.

The engine functions like this.

The supply of a separator 10 of a multi-cylinder internal combustion engine symmetrically placed in the pipe 5, comprising a head 1 with valves 8 and windows 9 connected to the pipe 5, will allow to create a simple and reliable engine design with optimal properties at low cost of its production, as it is rationally executed and placed elements of the intake system.

Claims (4)

1. A multi-cylinder internal combustion engine containing a cylinder head with valves and windows in communication with the inlet pipe, characterized in that it is equipped with an inlet separator symmetrically placed in the pipe. 2. The engine according to claim 1, characterized in that the side surfaces of the separator are located at an angle and radius. 3. The engine according to claim 2, characterized in that it is equipped with an oscillation damper mounted on the inlet pipe symmetrically to the separator. 4. The engine according to claim 3, characterized in that it is equipped with a funnel installed in the vibration damper.