Patent ID: 6241493
Filing Date: 2001-06-05
Classification: F01C

Abstract:
A fluid machine comprising:a housing having a wall defining an interior, the housing having a port in communication with the interior of the housing;a first shaft mounted for rotation relative to the housing about a primary axis, wherein at least a portion of the first shaft extends through the housing wall;at least one primary vane coupled to the first shaft, and disposed within the interior of the housing that rotates about the primary axis of the first shaft;a second shaft extending into the interior of the housing and mounted to the housing for rotation about the axis of the second shaft;at least one secondary vane disposed within the interior of the housing and mounted to the second shaft, the axis of the second shaft being fixed relative to the primary axis of the first shaft, and the secondary vane pivotally oscillating between alternating relatively open and closed positions with respect to the primary vane and defining a chamber within the housing interior having a volume which varies as the primary vane is rotated about the primary axis; andan adjustable vane guide bearing member disposed within the housing and coupled to the second shaft, the adjustable vane guide bearing member oscillating the secondary vane between relatively open and closed positions relative to the primary vane, varying the point during rotation of the first shaft and the primary vane at which the secondary vane reaches the relatively open and closed positions relative to the housing and the port so that the flow of fluid between the port and the chamber is adjusted.