High efficiency fixed displacement vane pump
The invention refers to a high efficiency fixed displacement vane pump used for an automatic transmission and can realize high efficiency with a self-absorption type. The pump includes a housing which may be spaced from the axis of the transmission input shaft axis and driven by a chain or gear trai...
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Main Author | |
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Format | Patent |
Language | Chinese English |
Published |
28.12.2011
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Subjects | |
Online Access | Get full text |
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Summary: | The invention refers to a high efficiency fixed displacement vane pump used for an automatic transmission and can realize high efficiency with a self-absorption type. The pump includes a housing which may be spaced from the axis of the transmission input shaft axis and driven by a chain or gear train driven by the torque converter hub or disposed on and about the axis of the transmission input shaft and driven at engine speed. The vane pump includes a pair of port plates which reside on the end faces of a pump body having a cylindrical chamber which receives an eccentrically disposed rotor that is coupled to a stub shaft in an off-axis arrangement. The rotor includes a plurality of radial slots which receive a like plurality of vanes. The outer ends or edges of the vanes are in contact with the wall of the cylindrical chamber and the inner ends or edges are in contact with a pair of vane rings received within recesses in the ends of the rotor. The vanes are thus constrained between the wall of the chamber and |
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Bibliography: | Application Number: CN20111169302 |