CS273380B1 - Device for internal combustion engines' and spark-ignition engines' efficiency improvement - Google Patents

Abstract

The solution enables to improve efficiency of combustion and explosion engines by exhaustion of exhaust gases. The gist of the solution are two mechanically coupled blowers with rotating pistons with a cooler (4) of exhaust gases. The cooler (4) is inserted between the discharge of the first blower (1) and suction of the second blower (2). The piston area of the first blower (1) is larger than the piston area of the second blower (2). The under-pressure in the cooler (4), which is acquired by abstraction of heat energy of exhaust gases, can be used for exhaustion of these gases from the engine (3). This device can be applied especially with large ship engines.<IMAGE>

Description

The invention relates to a device for improving the efficiency of internal combustion and explosive engines.

SUMMARY OF THE INVENTION The present invention is based on a device arranged in an exhaust gas discharge pipe of two mechanically coupled rotary piston blowers and an exhaust gas cooler. The present device utilizes the thermal energy of the exhaust gas to extract these gases from the engine.

In known engines, the exhaust gases are not sucked off. For large marine engines, the exhaust gas to be extracted is cooled by water from the watercourse. However, the suction effect is not achieved, only by reducing the volume of the exhaust gases the pressure loss in the exhaust pipe is reduced.

Fig. 2 shows the arrangement of the whole device according to the invention;

The present invention consists of a first rotary piston blower 1, a second rotary piston blower 2, and an exhaust gas cooler 4 which is interposed between the first blower 1 discharge and the second blower 2 suction. The cooler 4 is equipped with an overpressure flap with exhaust gas outlet directly into the atmosphere. The intake of the first blower 1 is connected to the exhaust manifold from the engine

FIG. 2 shows the mechanical coupling of the rotating pistons of the first blower 1 and the second blower 2.

The area of the pistons of the first blower 1 is greater than the area of the pistons of the second blower 2, in proportion to the steady-state exhaust temperature T ((in ° K) at the outlet of the engine 6 to the achievable exhaust temperature Tg after cooling in the cooler 4.

The removal of heat from the cooler 6 will reduce the exhaust gas volume. This will cause vacuum to occur in the radiator 4. Since the piston area of the first blower 1 is larger than the piston area of the second blower 2, the blower vacuum will drive and exhaust the exhaust gases from the engine.

In extraordinary operating conditions where the cooler 6 does not reduce the pressure below atmospheric pressure, a pressure relief flap is applied through which the exhaust gases escape directly into the atmosphere.

The device applied for can be applied in particular to large marine engines.

Claims (1)

THE OBJECT WE DEAR THE EVIL Apparatus for improving the efficiency of internal combustion and explosive engines arranged in an exhaust manifold comprising a first rotating blower blower and a second rotating piston blower, the first blower rotors being mechanically coupled to the second blower rotors and wherein the first blower rotors have a larger piston area than the rotors of the second blower, characterized in that an exhaust cooler (4) is inserted between the first blower (1) and the second blower (2).