Investigation of Fluid Flow Through a Vane Pump Flow Control Valve General Motors Corporation

Format:

Conference/Event

Author/Creator:

Dickinson, Allan L., author.

Conference Name:

International Conference On Vehicle Structural Mechanics & Cae (1995-04-04 : Troy, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1995

Summary:

The recent development of a new vane-type pump for power steering applications involved paying special attention to the fluid flow dynamics within the pump casing, especially in the flow control or supercharge region, where excess pump fluid flow is diverted to the intake region. Durability testing of initial designs revealed the presence of cavitation damage to the pump casing in the supercharging region. Subsequent Computational Fluid Dynamics (CFD) analyses as well as experimental Flow Visualization studies aided in resolving the cavitation-damage problem.The purpose of this paper is to describe the processes used in the CFD analyses and flow visualization studies. A two-dimensional (2D) convergence study was conducted to determine the CFD meshing requirements across the small orifice at the intersection of the flow-control valve and the supercharge portrait An iterative procedure was employed to determine the operating position of the flow-control valve. The parallel flow-visualization studies were conducted with strobe-flash photography and videography through a window fabricated in the supercharge portrait The window matched the port contours.Modification of the flow-control valve face was shown by CFD and flow visualization to be one possible solution for the cavitation-damage problem seen in the pump casing. Comparative results are provided for review

Notes:

Vendor supplied data

Publisher Number:

951113

Access Restriction:

Restricted for use by site license