Fluid reaction surfaces (i.e. – impellers) – Rotor having flow confining or deflecting web – shroud or... – Blades projecting axially from concavo-convex annular web
Patent
1991-03-11
1992-06-09
Kwon, John T.
Fluid reaction surfaces (i.e., impellers)
Rotor having flow confining or deflecting web, shroud or...
Blades projecting axially from concavo-convex annular web
416197C, F01D 504
Patent
active
051201968
ABSTRACT:
An impeller for a torque converter embodying the concepts of the present invention utilizes a substantially semi-toroidal shell. The shell has a radially inner periphery which defines an inlet portion and a radially outer periphery which defines an outlet portion. The shell is radially curved between the inlet portion and the outlet portion to define a concave annular recess. A plurality of full vanes and a plurality of splitter vanes are presented from the shell within the annular recess. The impeller vanes are disposed circumferentially about the concave recess at spaced intervals. Each vane has a leading head portion, an intermediate body portion and a trailing end portion. The leading head portions of both vanes are disposed in opposition to the inlet portion--the leading head portion of the full vanes being disposed in proximity to the inlet portion. The leading head portions of the splitter vanes are disposed in radially outwardly spaced relation to the inlet portion. The trailing end portions of both the full and the splitter vanes are disposed in proximity to the outlet portions. The leading head portions on both the full and the splitter vanes are bulbous with curvilinearly opposite surfaces converging along the intermediate body portions to terminate in the trailing end portions. The impeller vanes each have a radial dimension, but the radial dimension of the splitter vanes is substantially less than the radial dimension of the full vanes. The splitter vanes alternate with the full blades about the circumference of the shell housing. The full vanes extend fully between the inlet portion and the outlet portion.
REFERENCES:
patent: 2351516 (1944-06-01), Jandasek
patent: 2576700 (1951-11-01), Schneider
patent: 2917001 (1959-12-01), Zeidler et al.
patent: 3184833 (1965-05-01), Zeidler et al.
patent: 3240153 (1966-03-01), Schrader
patent: 3244400 (1966-04-01), Saunders
patent: 3426535 (1969-02-01), Mlacker et al.
patent: 4671061 (1987-06-01), Elderton
patent: 5037272 (1991-08-01), By
By Robert R.
Hojna Theodore E.
General Motors Corporation
Kwon John T.
Scherer Donald F.
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