Fundamentals of Manufacturing Processes (Multiple Choice) 20180401
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The triangular groove at one end of the oil window on the distribution plate of a double-acting vane pump is provided for this purpose. A. Eliminate oil trapping phenomenon B. Reduce hydraulic shock C. Prevent pressure concentration D. Improve volumetric efficiency. Hint: A triangular groove at one end of the oil port allows the volume between the blades to be in communication with the triangular groove before it connects to the oil port; through the throttling effect of this groove, the pressure between the blades is balanced with the oil pressure in the port, thereby preventing hydraulic shock caused by sudden changes in oil pressure.
The triangular groove at one end of the oil window on the distribution plate of the double-acting vane pump is provided for B. A. Eliminate oil trapping phenomenon B. Reduce hydraulic shock C. Prevent pressure concentration D. Improve volumetric efficiency. Hint: A triangular groove at one end of the oil port allows the volume between the blades to be in communication with the triangular groove before it connects to the oil port; through the throttling effect of this groove, the pressure between the blades is balanced with the oil pressure in the port, thereby preventing hydraulic shock caused by sudden changes in oil pressure.