Engine-driven work machine
A technology of engine drive and working machine, which is applied in the direction of engine components, machines/engines, mechanical equipment, etc. It can solve the problems of engine leakage, rainwater ingress, etc., and achieve the effect of improving sealing function, water tightness and quietness
Active Publication Date: 2008-02-27
HONDA MOTOR CO LTD
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Problems solved by technology
[0004] The mentioned engine-driven generators are widely used as temporary power sources at construction work sites or outdoors, and therefore, considering the impact on the work environment or the surrounding area, it is required to suppress the operating noise of the engine working unit to an extremely low level, however In the conventional engine-driven generator, since the airtightness and watertightness of the connection between the fuel tank and the side wall panels are not given much consideration, there is a concern that the running sound of the engine, etc. may leak from the connection, or Rainwater, etc. enters the soundproof enclosure
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[0040] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
[0041] First in Fig. 1~Fig. 5 and Fig. 7, the engine-driven generator 1 of the present invention has: frame 2; Engine 3 and generator 4 (referring to Fig. 7) elastically supported on this frame 2 bottom; a fuel tank 5 on the upper part of the frame 2 ; and a control unit 53 for the engine 3 and the generator 4 .
[0042] As shown in Fig. 1, Fig. 2 and Fig. 6, the frame 2 is composed of the following parts: a bottom frame 2a formed by bending a steel pipe into a rectangle; side wall panels 2b, 2b; and an upper cross member (cross member) 2c that connects rear upper end portions of these side wall panels 2b, 2b. The side wall panels 2b, 2b are made of steel plate.
[0043] Further, a shock absorber 13 that connects the side wall panels 2b, 2b and protrudes rearward from the bottom frame 2a is fixed to the rear middle portion of the left and right side wall pan...
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The present invention provides an engine-driving working machine. An accommodating engine (3) and a soundproof casing (6) of the generator (4) driven by the engine are arranged on the frame (2), and the soundproof casing is composed of the following components: a baseboard (8); a pair of side wallboards (2b, 2b) which stand from the baseboard; and a fuel tank (5) which connects the top end parts of the side wallboards, in the engine-driving working machine the installing flange (5a) which forms at the periphery of the fuel tank is arranged to a flat fuel tank supporting part (92) that forms on the top end of a pair of side wallboards, a downward rim (95) forms at the outer end of the installing flange, a upward rim (102) which is arranged nearer to the inner side of the soundproof casing comparing with the downward rim forms at the fuel tank supporting part, and a sealing component (96) is arranged between the installing flange and the fuel tank supporting part at the place which is nearer to the outside of the soundproof casing comparing with the upward rim. Thereby the engine-driving working machine with an excellent sound insulating property and water resistance is provided.
Description
technical field [0001] The present invention relates to an improvement of an engine-driven working machine. The engine-driven working machine supports an engine and a working machine driven by the engine on a frame, and a soundproof case for accommodating the engine and the working machine is arranged on the frame. The soundproof case is composed of: a bottom plate; a pair of side wall plates facing each other with the engine and working machine interposed therebetween; and a fuel tank connecting upper ends of these side wall plates. [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 an engine-driven generator as disclosed in Japanese Patent Application Laid-Open No. 10-196392, for example. [0004] The mentioned engine-driven generators are widely used as temporary power sources at construction ...
Claims
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IPC IPC(8): F02B63/04F02M37/00
Inventor 内海诚田中良男
Owner HONDA MOTOR CO LTD