Engine-operated generator
US6028369A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1998 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | Jul 23, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B2063/045
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A compact engine-operated generator unit in which only one centrifugal fan for cooling is provided to restrain generation and leakage of operation noise, while an engine and a generator are still cooled efficiently. Particularly, the engine-operated generator unit comprises an engine and a generator driven by the engine arranged in a direction of a rotary shaft, and soundproof case housing the engine, the generator and other components therein, the generator includes an outer-rotor; a centrifugal fan provided on an end surface the outer-rotor of the generator remote from the engine; a duct covering the centrifugal fan, the generator and the engine and having a suction opening at a side facing the centrifugal fan; a discharge operating on a downstream side of the duct facing an exterior of the soundproof case; and a circulation space provided between the generator and the engine for introducing a part of cooling air flowing toward the engine into the generator to circulate again back to the centrifugal fan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.