Puritan-bennett Corporation

Air Squared, Inc.

Charles D Kimbro

Kyle Adriance

Robert W Shaffer

Douglas A Webb

A scroll compressor includes a fixed scroll member and an orbiting scroll. The orbiting scroll member is operatively connected to a motor to be driven in an orbiting motion by the motor. The scroll members each include a plate having an inboard surface and an outboard surface. A spiral involute or wrap is formed on the inboard surface of each scroll member plate. The involutes mate to define suction zones at outer ends of the involutes and fluid pockets. The fixed scroll member defines a fluid outlet at the center of the involutes and two inlets positioned proximate the suction zones. At least two idler crank assemblies are provided to maintain the phase relationship and running clearance between the scroll members. The idler crank assemblies each include two operatively connected cranks, one being in the fixed scroll and one being in the orbiting scroll. The fixed scroll crank is externally accessible so that its rotational motion may be harnessed to drive a fan or another compressor stage, for example. Ribs are formed on the surfaces of the plates to facilitate heat dissipation and to make the scroll members more rigid. The involutes are provided with seals which seal against the plate of the opposing scroll member to seal the fluid pockets against leakage.

Scroll compressor having idler cranks and strengthening and heat

A mount for a compressor or the like which sits on a base includes a top surface which is securable to the base. The top surface defines a well having a floor. An opening is formed in the bottom of the floor and a shaft extends from beneath the well floor to above the upper surface. The shaft includes a lower flange positioned below the well floor and an upper flange positioned above the top surface. A spring is positioned between said well floor and the top flange to absorb vibrations and any resulting shock produced by the compressor. A pair of upwardly extending generally perpendicular walls are provided on the upper surface to prevent the spring from engaging the upper surface or deflecting excessively. The walls and the upper flange are sized such that when the shaft moves with respect to the well, the upper flange will contact the wall before the spring contacts the upper surface or deflects excessively.

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St. Charles County, MO, United States of America

Charles D Kimbro