Single-winding multi-stage scroll expander

Details Single-winding multi-stage scroll expander Single-winding multi-stage scroll expander

2005-08-02

2005-08-02

Richter, Sheldon J (Department: 3748)

Power plants

Motive fluid energized by externally applied heat

C060S679000, C418S006000, C418S055100, C418S059000, C418S060000

Reexamination Certificate

active

06922999

ABSTRACT:
A single-winding multi-stage expander comprises a fixed scroll and an orbiting scroll which revolves eccentrically with respect to the fixed scroll so as to pressurize a sealed chamber formed between the two scrolls to drive a crankshaft. A high-temperature pressurized gas is introduced into a first-stage inner division and sent to an external heater. The heated gas is sent back to a second-stage outer division of the expander to significantly increase efficiency thereof.

REFERENCES:
patent: 4141677 (1979-02-01), Weaver et al.
patent: 4157234 (1979-06-01), Weaver et al.
patent: 6659743 (2003-12-01), Kimura et al.
patent: 6682328 (2004-01-01), Kimura et al.
patent: 6709248 (2004-03-01), Fujioka et al.
patent: 6736620 (2004-05-01), Satoh

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