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Motor driving type working machine

一种发动机驱动、工作机的技术，应用在发动机元件、机器/发动机、发动机的冷却等方向，能够解决冷却风扇工作噪音的漏出增多等问题，达到提高静音性、实现消音功能、实现稳定化的效果

Inactive Publication Date: 2008-03-05
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in such an engine-driven generator, a considerable amount of running noise leaks from the inlet of the cooling air passage
In particular, since the cooling fan is disposed on the inlet side of the cooling air passage, the leakage of the operating noise of the cooling fan increases.

Method used

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  • Motor driving type working machine
  • Motor driving type working machine
  • Motor driving type working machine

Examples

Experimental program
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Embodiment Construction

[0062] Hereinafter, embodiments of the present invention will be described based on preferred embodiments of the present invention shown in the drawings.

[0063] 1 is a side view of an engine-driven generator according to a first embodiment of the present invention, FIG. 2 is a top view of the engine-driven generator, FIG. 3 is a front view of the engine-driven generator, and FIG. The front view of the engine generator shown with the main body of the air intake box removed, FIG. 5 is a partially cutaway rear view of the engine generator, and FIG. 6 is the engine generator Fig. 7 is a sectional view along line 7-7 of Fig. 5, Fig. 8 is an enlarged view of the periphery of the exhaust muffler in Fig. 7, Fig. 9 is a sectional view along line 9-9 of Fig. 5, Fig. 10 is a sectional view along line 10-10 of FIG. 3, FIG. 11 is a sectional view along line 11-11 of FIG. 3, FIG. 12 is a sectional view along line 12-12 of FIG. 11, and FIG. 13 line, Fig. 14 is a bottom view of the sealing...

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Abstract

The present invention provides an engine drive type working machine with high mute property which can prevent the operating noise leaking from a cooling wind passage. The machine elastically supports an engine (3) and a generator (4) on a frame (2). The engine (3) and the generator (4) are integrately arranged with a passage component (31), between which and the outer circumference of the engine and the generator the continuous cooling wind passage (32) is disposed. A cooling fan (26) is disposed at the inlet (32a) of the cooling wind passage (32), the passage component (31) is arranged with an antinoise sheet (121) which is opposite to and has a gap (120) from the inlet (32a) of the cooling wind passage (32), the opposite area between the antinoise sheet (121) and the inlet (32a) is larger than the opening area of the inlet (32a).

Description

technical field [0001] The present invention relates to an improvement of an engine-driven working machine in which an engine and a working machine driven by the engine are supported on a frame via an elastic member, and the engine and the working machine are integrally mounted with a A duct member that defines a continuous cooling air passage between the outer peripheral surfaces, and a cooling fan that pressurizes the cooling air toward the engine and the working machine is disposed on the inlet side of the cooling air passage. [0002] In addition, working machines driven by the above-mentioned engine include generators, air compressors, water pumps, and the like. Background technique [0003] The above-mentioned engine-driven working machine is known as, for example, an engine-driven generator as disclosed in Patent Document 1 below. [0004] Patent Document 1: Japanese Unexamined Patent Publication No. 2005-30353 [0005] The aforementioned engine-driven generators ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P5/06F02B63/04
CPCF02B63/04F02B63/044F01N2260/022F02B2063/045F01P11/12F01P2001/005F01P11/10F01P5/06
Inventor 伊藤隆司小野寺泰洋
Owner HONDA MOTOR CO LTD
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