Efficient generator unit with two cooling air ducts

Abstract

The invention discloses an efficient generator unit with two cooling air ducts. The efficient generator unit with the two cooling air ducts comprises a unit shell and an engine type generator. The engine type generator comprises an engine cooling air channel and a motor cooling air channel. An air inlet of the engine cooling air channel is formed in a starter pull disk. An air outlet of the engine cooling air channel is formed in a muffler air outlet rubber cover. A cylinder head and a muffler are arranged in a closed channel formed between the air inlet and the air outlet of the engine cooling air channel. Air inlets of the motor cooling air channel are formed in the top, the side face and the bottom of an engine case cover respectively. An air outlet of the motor cooling air channel is formed in a motor end cover. A cooling fan and a motor are arranged in a closed channel formed between the air inlets and the air outlet of the motor cooling air channel. Blades of the cooling fan are of an arc-shaped cover structure. The two cooling air channels are independent of each other, so that the air channels is simplified, arrangement of the air channels is optimized, and the number of parts is reduced; the blades of the cooling fan are of the arc-shaped cover structure, so the air supply amount is increased, and the cooling effect of the generator is improved jointly.

Description

technical field [0001] The invention relates to the technical field of generator sets, in particular to the structure of a cooling air passage in an engine generator set. Background technique [0002] The engine-type generator runs the motor through the engine to generate electricity. The engine-type generator is equipped with an engine cooling air duct and a motor cooling air duct. Cool down. [0003] In the existing engine-type generators, there are mainly two structural forms: one is that the two cooling air channels respectively cool the cylinder head and the motor, and then cool the muffler together after converging. This structure ensures smooth flow of the cooling air, and the cooling air The channel structure is complex, the number of parts constituting the cooling air channel is large, and the installation accuracy is very high; the other is to cool the cylinder head first, and then divide it into two channels to cool the muffler and the motor respectively, but the...

AI Technical Summary

Problems solved by technology

[0003] In the existing engine-type generators, there are mainly two structural forms: one is that the two channels of cooling air respectively cool the cylinder head and the motor, and then cool the muffler together after converging. This structure ensures smooth flow of the cooling air, and the cooling air The channel structure is complex, the number of parts constituting the cooling air channel is large, and the installation accuracy is very high; the other is to cool the cylinder head first, and then divide it into two channels to cool the muffler and motor respectively, but the cooling effect of the cooling air after splitting is not ideal.

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