|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||F02D-023/00 F04D-029/44 F04D-029/54 F01D-017/12|
|미국특허분류(USC)||060/602; 415/158; 415/198.1; 415/126|
|§371/§102 date||20110606 (20110606)|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 1 인용 특허 : 10|
The flow path of exhaust gas to the turbine wheel (70) of a twin volute turbocharger is influenced by the shape and size of the nozzle formed by the shape (22) of the divider wall (21) and the shape of the flow passage determined by the walls (85, 86) of the turbine housing. By moving the walls (85, 86) toward, or away from the divider wall, the flow of exhaust gas through the nozzle, to the turbine wheel (70) can be modulated, which thus modulates the turbocharger boost pressure. The invention also applies to single volute turbines.
1. A turbocharger comprising: a turbine housing (2) including at least one volute (47, 48, 49),a turbine wheel (70) carried within the turbine housing and adapted to being driven by exhaust gas,a transition area (39) where exhaust from the volute(s) is transmitted to the turbine wheel,first and second cylinders (81) with end faces (58, 59) with contours (85, 86) defining said transition area, wherein said first contour (85) is part of said first cylinder end face (58), generally coaxial and concentric to the turbine wheel and movable parallel to the axis...