FI127828B - Internal combustion engine and method for operating same - Google Patents

Abstract

A combustion engine (10) having a plurality of cylinders (11) and at least one compressed air reservoir (16) which can be closed by a valve (17), wherein the compressed air stored in the compressed air reservoir or each compressed air reservoir can be opened by valve (17). in the direction of the cylinders (11) of the combustion engine in order to accelerate the speed of the combustion engine.

Description

The invention relates to a combustion engine according to the preamble of claim 1. The invention further relates to a method for operating a combustion engine.

Combustion engines with and without exhaust gas turbocharging are known in the art. In supercharged combustion engines, the exhaust gas exiting the cylinders of the combustion engine expands in at least one turbine, whereby the energy provided is utilized in at least one compressor to compress the compressed air supplied to the cylinders of the combustion engine.

When starting a combustion engine, the engine must first be run in spur. This requires a specific time period, depending on the design of the combustion engine. In this case, it is advantageous if the time needed for the combustion engine to run is as short as possible. This is particularly the case with so-called offshore vessels, in order to achieve the maneuverability of the vessel in the shortest possible time.

From this point on, it is an object of the present invention to provide a new type of combustion engine. This task is solved by a combustion engine according to claim 1. The combustion engine 20 of the invention has at least one valve closable compressed air reservoir, wherein, for pushing the combustion engine into the compressed air reservoir or each compressed air reservoir, opening the valve or each valve can be directed to the combustion engine in the direction of the cylinders.

With the incinerator of the invention, the time required for the impulse operation of the incinerator can be minimized.

In a combustion engine without air turbocharging, compressed air can be introduced into the charge air line leading to the cylinders of the combustion engine and / or directly into the cylinders of the combustion engine.

In a combustion engine equipped with exhaust gas turbocharging, the compressed air can additionally or alternatively be supplied to the charge air line between the supercharger compressor and the supercharger of the supercharger and / or directly to the supercharger of the supercharger.

A method for operating a combustion engine is defined in claim 35 of patent 35.

20155898 prh 01 -12- 2015

Preferably, with the opening of the pneumatic tank or each of the pneumatic tank valves or each of the valves, the fuel supply to the combustion engine is increased to accelerate the propulsion of the combustion engine.

Advantageous further developments of the invention will be apparent from the dependent claims and the following description. The embodiments will be described in more detail in connection with the drawings without being limited thereto. In the drawings:

Figure 1 is a schematic view of a first combustion engine according to the invention;

Fig. 2 is a diagrammatic view of another combustion butter machine according to the invention;

Figure 3 is a schematic view of a third combustion engine according to the invention;

Figure 4 is a schematic view of a fourth combustion engine according to the invention;

Figure 5 is a schematic view of a fifth combustion engine according to the invention; and Figure 6 is a schematic view of a sixth combustion engine according to the invention.

The present invention relates to a combustion engine and to a method for operating a combustion engine.

Fig. 1 shows a first embodiment of a combustion engine 10 according to the invention comprising a plurality of cylinders 11 and a supercharger 12. The supercharger 12 utilizes a turbine 13 in which the exhaust gas exiting the combustion engine 10 expands. The energy 25 obtained in the turbine 13 in connection with the expansion of the exhaust gas is utilized in the compressor 14 of the supercharger 12, whereupon the compressed air supplied to the cylinders 11 is compressed in the compressor 14. The supercharger

The combustion engine 10 of Figure 1 utilizes a pressure vessel 16 provided with a valve 17, so that when the valve 17 is closed, the ready air in the pressure vessel 16 cannot escape from the pressure vessel 16. Then, while the valve 17 is opened, the compressed air stored in the pressure vessel 16 can discharge.

According to the present invention, the compressed air stored in the pressure vessel 16 for the urgent operation of the combustion engine is by opening the valves 17 of the valve

20155898 prh 01 -12-2015 available in the direction of the cylinders 11 of the combustion engine 10 to accelerate the rotation of the combustion engine 10. In the embodiment of Figure 1, it is provided that compressed air can be introduced directly into the compressor 14 of the supercharger 12.

Simultaneously with the opening of the valve 17 of the compressed air reservoir 16, the fuel supply to the combustion engine 10 is raised to accelerate the propulsion of the combustion engine.

The opening of the valve 17 of the compressed air reservoir 16, and thus the introduction of the compressed air into the cylinders 11 of the combustion engine 10, and the raising of the fuel supply to the combustion engine 10 preferably take place immediately after or immediately after controlling the starter of the combustion engine 10.

Fig. 2 shows an alternative embodiment of the combustion engine 10 according to the invention, wherein compressed air stored in the pressure vessel 16 for accelerating the rotation of the combustion engine 10 is opened by opening valve 17 into the ah15 air line 18 which extends between Simultaneously with the opening of the valve 17 of the compressed air reservoir 16, the fuel supply to the combustion engine 10 is raised to accelerate the propulsion of the combustion engine.

FIG. that the compressed air is supplied either directly to the cylinders 11 or to the charge air conduit 19. Simultaneously with the opening of the valve 17 of the compressed air reservoir 16, the fuel supply to the combustion engine 10 is increased to accelerate the rotation of the combustion engine.

Figure 4 illustrates an embodiment of the invention in which compressed air stored in pressure vessel 16 is provided by opening valve 17 directly to compressor 14 of the supercharger 12 and into the supercharging air line 19 between the supercharger and the cylinders for accelerating the combustion engine 10. Alternatively, it is also possible for the compressed air to be supplied either directly to the compressor 14 or to the charge air conduit 19. Simultaneously with the opening of the valve 17 of the compressed air reservoir 16, fuel supply is provided.

20155898 prh 01 -12- 2015 The combustion engine 10 is raised to accelerate the propulsion of the combustion engine.

Figure 5 illustrates an embodiment of the invention wherein the compressed air stored in the pressure vessel 16 is openable by opening four valves 17 in the direction of the cylinders 11, namely directly to the compressor 14, the charge air lines 18 and 19 and immediately to the cylinders 11 of the combustion engine 10. desired combinations of these feed points for compressed air. Thus, it is possible to supply the compressed air 16 to the desired one, two, three, or each of the compressed air supply points shown in Fig. 510, in the direction of the cylinders 11 of the combustion engine 10 to accelerate the rpm of the combustion engine. Simultaneously with the opening of the valve 17 of the compressed air reservoir 16, the fuel supply to the combustion engine 10 is increased.

The combustion engines of Figures 1-5 each have a supercharged combustion engine having a supercharger 12 comprising a single exhaust turbocharger having a turbine 13 and a compressor 14. It is also possible for the supercharger to be multi-stage, i.e. comprising a plurality of turbochargers and thus several compressors.

The invention is also applicable to the non-supercharged combustion engine 10 as shown in FIG. .

In contrast to the embodiments shown, there may also be more than one pressure vessel 16. Thus, it is possible to arrange a separate pressure vessel with separate valves 17 at each of the compressed air supply points. It is also possible to arrange a valve 17 common to several pressure vessels 16.

In order to accelerate the rotation of the combustion engine 10 with a plurality of cylinders 11, the compressed air stored in at least one compressed air reservoir 16 is accordingly guided in the direction of the cylinders 11 of the combustion engine 10. Simultaneously with the opening of the valve 17 of the compressed air reservoir 16, the fuel supply to the combustion engine 10 is preferably raised.

The pressure level for compressed air, which is directed in the direction of its cylinders 11 to accelerate the rotation of the combustion engine 10, is in particular between 5 and 10 bar.

Reference Number List

20155898 prh 01 -12- 2015

Internal combustion engine

Cylinder

Supercharging device

Turbine

Compressor

intercooler

The compressed air reservoir

Valve

Ahtoilmajohto

Ahtoilmajohto

Ahtoilmajohto

Claims (2)

claim An internal combustion engine comprising several cylinders (11) characterized by at least one compressed air container (16) which can be closed by a valve (17), wherein For speeding operation of the combustion engine, compressed air storage or in each compressed air container (16), by opening the valve or each valve (17), can be directed to the cylinders (11) of the combustion engine to accelerate the combustion engine's operation; conduction of compressed air takes place with the operation of the combustion engine's starting device; supply of fuel to the combustion engine increases at the same time as the valve or each valve (17) is opened; the combustion power machine has at least one single-stage charging device (12), the charging device (12) comprising at least one exhaust gas turbine (13) removed from the cylinders (11) and at least one compressor (14) for compressing the charging air conducted to the cylinders (11) ; and compressed air is directed directly to the compressor (14) of the charging device (12) simultaneously with the operation of the combustion engine's starting device. 2. A method for operating an internal combustion engine according to claim 1 comprising several cylinders (11), characterized by the rushing operation of the combustion power machine, in the compressed air container or in each compressed air container (16) compressed air can be directed to the cylinders (11) of the combustion engine machine to accelerate the rushing operation of the combustion engine; Compressed air conduction takes place with the operation of the combustion engine's starting device; supply of fuel to the combustion engine increases at the same time as the valve or each valve (17) is opened; the combustion power machine has at least one single-stage charging device (12); The charging device (12) comprising at least one exhaust gas turbine (13) removed from the cylinders (11) and at least one compressor (14) for compressing the charge air conducted to the cylinders (11); and compressed air is directed directly to the compressor (14) of the charging device (12) simultaneously with the operation of the combustion engine starting device.