Air filter, internal combustion engine and internal combustion engine driven generator

Abstract

The invention discloses an air filter for an internal combustion engine. A mounting hole is formed in a shell cover, wherein a handle shaft is rotatably mounted in the mounting hole. A handle and a fixed block which rotate along with the handle shaft and are larger than the mounting hole in radial dimension are separately arranged at the outer end and the inner end of the handle shaft; a fixed hole is formed in an air filter seat, and the fixed hole is matched with the cross section shape of a fixed block and is eccentric. On the one hand, relative positions of the air filter seat and the shell cover can be locked, and thus, the shell cover and the air filter seat can be combined stably and reliably, so that vibration is avoided. On the other hand, in a full course of detaching the shell cover relative to the air filter seat, the handle is not separated from the shell cover all the time, so that the handle can be prevented from missing reliably. The air filter is simple in structure, convenient to operate and low in cost. The invention further discloses the internal combustion engine comprising the air filter and a generator with corresponding technical effects.

Description

technical field [0001] The invention relates to the technical field of internal combustion engines, in particular to an air filter. The invention also relates to an internal combustion engine and an internal combustion engine driven generator. Background technique [0002] The housing cover and the seat body of the small internal combustion engine air filter can be connected by bolts or steel wire buckles. The air filter connected by bolts requires a long operation time when the housing cover needs to be removed, and the operation is inconvenient. After disassembly, the bolts are also easy. Shedding lost. The structure of the air filter connected by buckle is relatively complicated, and the cost is also relatively high. [0003] Therefore, it is necessary to design an air filter connection method that is simple in structure, easy to disassemble, prevents detachment, and has high cost performance. Contents of the invention [0004] The object of the present invention is ...

AI Technical Summary

Problems solved by technology

[0002] The housing cover and the seat body of the small internal combustion engine air filter can be connected by bolts or steel wire buckles. The air filter connected by bolts requires a long operation time when the housing cover needs to be removed, and the operation is inconvenient. After disassembly, the bolts are also easy. Lost

The structure of the air filter connected by buckle is relatively complicated, and the cost is relatively high

Images