Exhaust-bypass valve of turbocharger
US8833074B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2009 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Nov 16, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An exhaust-bypass valve capable of reducing wear of a rotating shaft to prevent controllability from deteriorating is provided. An exhaust-bypass valve (1) of a turbocharger includes a shunting passage (5) that communicates between a passage (3) at the turbine-inlet side and a passage (4) at the turbine-outlet side and a valve flap (6) that opens and closes this shunting passage (5). The valve flap (6) opens and closes to shunt a gas flowing through the passage (3) at the turbine-inlet side into the passage at the turbine-outlet side. The valve flap (6) is rotatably supported at one side thereof serving as a center-of-rotation side, and the other side thereof moves away from or towards the shunting passage (5) to open or close the shunting passage (5). A tapered portion (10) is provided at an edge on the other side. The edge is at least one of an edge of an opening of the shunting passage (5) facing the valve flap (6) and a side surface of the valve flap (6) facing the shunting passage (5).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.