Turbo charging system of diesel engine
US6311493A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2000 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Nov 14, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbo charger system (32) for a diesel engine (1) with a simple structure, but improved in output, torque and fuel consumption rate. A high-stage turbine (3) and low-stage turbine (4) are provided in series on an exhaust gas line (2) of the engine (1). A high-stage compressor (6), which is connected to the high-stage turbine (3), and a low-stage compressor (7), which is connected to the low-stage turbine (4), are provided in series on an intake air line (5) of the engine (1). A bypass line (20) with a valve (21) is provided over the high-stage turbine (3). The bypass valve (21) is completely or substantially completely closed until the engine (1) reaches its maximum torque point (14) so as to raise a supercharging pressure. From the maximum torque point (14) to the maximum output point (15), the bypass valve (21) is gradually opened to adjust the supercharging pressure. The bypass valve is completely or substantially completely opened at the maximum output point (15) to suppress the supercharging pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.