Engine-driven operating machine
US7107943B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2005 |
| Grant date | Sep 19, 2006 |
| Priority date | — |
| Expiry date | Feb 4, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B63/044
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A soundproof engine-driven operating machine has a small installation area, is easy to assemble and disassemble, and has superior cooling effects. The soundproof engine-driven operating machine includes an engine, an operating machine main body that is driven by the engine, a base frame that supports the engine and the operating machine main body in a vibration-proof structure, and a case fitted to the base frame and accommodating the engine and the operating machine main body. One part of the case includes a first-story chamber accommodating the engine and the operating machine main body, first and second heat exchangers, each having a cooling fan and being arranged above the first-story chamber, the first and second heat exchangers performing heat conversion relating to the operation of the engine by using the cooling fans, arranged separately in a ventilation path, and a second-story chamber accommodating a muffler for discharging engine air. The part of the case is formed from a structural frame that is provided on the base frame. A cover is secured to the base frame, and covers the entire structural frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.