This paper investigates the pressure pulsations caused by each mass flow rate through the suction valves and ports of a multicylinder compressor in order to attribute high-pressure pulsation responses to certain valves. By staggering the valve configurations appropriately, it is shown that the level of gas pulsations in the suction manifold of a multicylinder automotive compressor can be reduced. First, the equation for a compression cycle, a Bernoulli-Euler linear differential beam equation for the suction valves, and the piston kinematics are considered in order to calculate the mass flow rates through the compressor suction valves. The pressure pulsations in the suction manifold are then predicted based on the characteristic cylinder method using the calculated mass flow rates. In order to investigate the effects of each mass flow rate, the characteristics and phases of the mass flow rates through the suction valves are changed by modifying the clearance volume.
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.Copyright © 2007
by American Society of Mechanical Engineers
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