US 7,517,191 B1
	Operational maintenance of air-conditioning installations
Thomas Bein, Gambrills, Md. (US); Matthew Frank, Chadds Ford, Pa. (US); and William L. Tucker, Turnersville, N.J. (US)
Assigned to The United States of America as represented by the Secretary of the Navy, Washington, D.C. (US)
Filed on Oct. 06, 2005, as Appl. No. 11/250,705.
Int. Cl. F03B 11/02 (2006.01)

U.S. Cl. 415—201  [29/266; 269/95; 269/96]

6 Claims

1. In combination with an assembled pump compressor of an air-conditioning system having a housing enclosing an impeller with a thrust collar positioned thereon; a tool for applying torque to the impeller comprising: an outer cylindrical element; a plurality of arcuate sections; releasable clamp means for interconnecting said arcuate sections and the outer cylindrical element with the impeller clamped between the outer cylindrical element and the arcuate sections; and a torque bar extending through the outer cylindrical element in spaced relation to the impeller through which said torque is applied to effect disassembly of the high-speed thrust collar and removal of the impeller from the housing of the air-conditioning system.