Generator set with high-efficiency dual cooling air ducts

Abstract

A generator set having dual cooling airways comprises a generator set housing (12) and an engine-generator. The engine-generator comprises an engine cooling airway (a) and a generator cooling airway (b). An air inlet of the engine cooling airway (a) is disposed at a starter reel (4a), and an air outlet thereof is disposed at a muffler air venting rubber cover (7). A cylinder head (1) and a muffler (2) are disposed in a sealed channel formed between the air inlet and air outlet of the engine cooling airway (a). Air inlets of the generator cooling airway (b) are disposed at a top portion, side portion and bottom portion of an engine case cover (8), and an air outlet thereof is disposed at a generator end cover (11). A cooling fan (9) and a generator (3) are disposed in a sealed channel between the air inlets and air outlet of the generator cooling airway (b). A blade of the cooling fan (9) has a curved cover structure. The two cooling airways of the generator set are independent from each other, thus simplifying air channels, optimizing the arrangement of the air channels and reducing a component number.

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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