초록 ▼

An improved variable flow turbine having a turbine housing constructed of a curved section and a volute section. The curved section contains an inlet at one end and is connected to the volute secton at the opposite end. Located within the volute section is a turbine rotor having an outlet which is c

An improved variable flow turbine having a turbine housing constructed of a curved section and a volute section. The curved section contains an inlet at one end and is connected to the volute secton at the opposite end. Located within the volute section is a turbine rotor having an outlet which is coaxially aligned with the central axis of the volute section. Positioned at the inlet of the curved section is a control valve for regulating the flow of exhaust gases into the housing. Extending inwardly from the control valve is a divider wall which divides the housing into inner and outer passages. The divider wall is constructed such that the cross-sectional flow area of each the passages within the volute section decreases as they approach the turbine rotor. This unique turbine arrangement enables a turbocharger to operate more efficiently over an engine\s operating range.

대표청구항 ▼

An improved variable flow turbine comprising: (a) a housing including a curved section with an inlet at one end and joined at a second end to a volute section which is formed about an axis, said volute section having an outlet coaxially aligned with the axis, and said curved section being curved in

An improved variable flow turbine comprising: (a) a housing including a curved section with an inlet at one end and joined at a second end to a volute section which is formed about an axis, said volute section having an outlet coaxially aligned with the axis, and said curved section being curved in the direction of said volute; (b) a rotor positioned within said housing for rotation about the axis of said volute section, said rotor having a plurality of circumferentially spaced blades; (c) a valve positioned at said inlet and within said curved section for controlling flow therethrough such that as said valve is moved towards a closed position, both the mass average radius of curvature and the velocity of the incoming exhaust gas are increased; and (d) a divider wall formed in said housing and extending from said valve inwardly through said curved section and into said volute section for dividing said housing into inner and outer radial passages, each passage having a cross-sectional area within said volute section which is constantly decreasing as said passage approaches said rotor.