Cooling structure of hybrid power system

Abstract

The invention provides a cooling structure of a hybrid power system. The cooling structure comprises a flow guide cover wrapping a silencer, the interior of the flow guide cover is hollow, and the interior of an air outlet channel of the flow guide cover protrudes upwards to form a silencer mounting space for mounting the silencer. According to the cooling structure, the silencer is arranged in the flow guide cover, cooling air of a cooling suction fan forms negative pressure after flowing through an air cylinder body, a crankcase and the silencer, waste gas in the silencer can be sucked out,the exhaust back pressure of a two-stroke air-cooled engine is reduced, and the power of the two-stroke air-cooled engine is improved; the waste gas of the silencer is mixed with the cooling air flowing through the air cylinder body, the crankcase and the silencer at the rear end of the flow guide cover, and the temperature of the waste gas flowing out of the silencer from the silencer is greatlyreduced, so that the infrared stealth effect of the hybrid power system is greatly improved; and the flow guide cover completely covers the silencer and can absorb part of noise generated by exhaust,and therefore the noise reduction effect is achieved.

Description

technical field [0001] The invention relates to the technical field of a range-extending hybrid power system, in particular to a cooling structure of a hybrid power system. Background technique [0002] In a hybrid power system, a fixed magneto is required for range-extended power generation, a fixed cooling fan is required to cool the hybrid power system, and a shroud needs to be connected to guide the cooling air. [0003] The cooling structure muffler in the prior art is installed on the outside of the shroud, the outlet is vertically upward, and is adjacent to the air filter of the engine; in the process of its work, the exhaust gas discharged by the engine from the muffler is in the same position as the engine intake port. On the same side, the muffler and the exhaust gas can cause an increase in the intake air temperature, resulting in a decrease in the intake air volume; and the exhaust gas discharged from the muffler will be sucked into the engine's air filter, resul...

AI Technical Summary

Problems solved by technology

[0003] The cooling structure muffler in the prior art is installed on the outside of the shroud, the outlet is vertically upward, and is adjacent to the air filter of the engine; in the process of its work, the exhaust gas discharged by the engine from the muffler is in the same position as the engine intake port. On the same side, the muffler and the exhaust gas can cause an increase in the intake air temperature, resulting in a decrease in the intake air volume; and the exhaust gas discharged from the muffler will be sucked into the engine's air filter, resulting in a further reduction in the intake air volume, thereby affecting the power and performance of the engine. fuel consumption

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