Patent ID: 7003964

Claim:
A heat pump system comprising: a heat generator; a heat engine supplied with heat engine working fluid by said heat generator having a heat engine cylinder chamber, a heat engine piston, and a heat engine piston rod; a preheating chamber employing said heat engine working fluid to heat said heat engine cylinder chamber; a condensate pump supplying said heat generator with said heat engine working fluid; a compressor driven by said heat engine employing compressor working fluid having a compressor cylinder chamber, a compressor piston, and a compressor piston rod; a spacer separating and joining said heat engine piston rod and said compressor piston rod; a sealing assembly associated with said spacer separating said heat engine working fluid and said compressor working fluid; and a valve assembly communicating with said heat engine cylinder chamber and controlling the ingress and egress of heat engine working fluid to said heat engine.