Patent ID: 7273071

Claim:
A control for a driving heat source inlet in an absorption refrigerant cycle comprising: a T connection, said T connection having a first leg to be connected to a source of heated fluid, and said T connection having a second leg to be connected to the inlet of a driving heat source for a refrigerant absorption cycle, a third leg of said T communicating said heated fluid to a heat sink; a first and second valve body received within said T connection, said first valve body controlling the amount of heated fluid being directed through said second leg, and said second valve body controlling the amount of heated fluid being communicated through said third leg, a control for controlling movement of said first and second valve bodies such that they are generally moved in opposition to each other; and an outer periphery of said shafts received within said bearings is non-cylindrical such that a contact area between said shaft and an inner periphery of said bearing is reduced.