Electric supercharging device and multi-stage supercharging system
US9273598B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2012 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Jul 5, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
It is intended to provide: an electric supercharging apparatus wherein, with a simple structure, rotor windage loss in an electric motor for driving a compressor is reduced and good cooling performance is produced; and a multi-stage supercharging system using the electric supercharging device. This electric supercharging apparatus (1) is provided with: a first cooling passage (17) formed in a stator (9) along a motor coil (11) and communicating a gas supply port (13) with a gas discharge port (14) in a motor housing (8); and a first intake passage (15) connecting the gas discharge port to an intake port (5) of a compressor (2). This electric supercharging apparatus is configured to introduce outside air into the first cooling passage via the gas supply port by applying negative pressure to the first cooling passage via the first intake passage, thereby cooling the inside of the motor housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.