Variable-capacitance radial turbine having swingable tongue memb

Details Variable-capacitance radial turbine having swingable tongue memb Variable-capacitance radial turbine having swingable tongue memb

1984-06-11

1987-07-07

Croyle, Carlton R.

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Upstream of runner

415163, 415205, F01B 2502

Patent

active

046783970

ABSTRACT:
A variable-capacitance radial turbine has a swingable tongue member which is swingably mounted in an inlet throat portion of a scroll fluid passage of the turbine and which is swingable on a pivot shaft parallel to the turbine wheel axis. The right and left scroll side walls are formed with right and left seat surfaces, and the tongue member is formed with right and left sealing surfaces on both sides. The right and left seat surfaces and sealing surfaces are not perpendicular to the turbine wheel axis, and they are so shaped that when the tongue member is in a predetermined limit position, the right and left sealing surfaces are in contact with the right and left seat surfaces respectively so as to seal the clearances between the tongue member and the scroll side walls over the full length of the tongue member.

REFERENCES:
patent: 1548341 (1925-08-01), Banki
patent: 2715814 (1955-08-01), Barr
patent: 3313518 (1967-04-01), Nancarrow

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