Importance

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Abstract

A pressure transformer is provided having a housing, with a rotating group disposed therein, an adjustable port plate is disposed between a barrel of the rotating group and a head portion of the housing. The barrel has a plurality of pistons slideably disposed in cylinders defined in the barrel. The cylinders each define a cylinder port that is in intimate contact with the port plate. The port plate has three arcuate slots defined therein and spaced from one another along a predetermined circumference. Each arcuate slot has a leading edge and a trailing edge. Likewise each of the cylinder ports has a leading edge and a trailing edge. The shape and orientation of the leading edges and trailing edges of the cylinder ports and the arcuate slots are the same. During relative rotation between the cylinder ports and the arcuate slots, the leading edges of the cylinder ports and the leading edges of the arcuate slots are radially concurrent. Likewise, the trailing edges of the cylinder ports and the trailing edges of the arcuate slots are radially concurrent. This relationship enhances the operating efficiency of the pressure transformer.

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First Claim