US4094169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expander-compressor transducer
Assignee: Individual
•
Filing: 1973-11-21
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Granted: 1978-06-13
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Expires: 1993-11-21
Abstract
Abstract An Expander-Compressor Transducer is used in a gas or a vapor cycle refrigeration or a heat pumping system which operates in conjunction with a gas compressor, heat rejection heat exchangers, and heat absorption heat exchangers. The device utilizes the work of expansion of the fluid to partially compress the refrigerant after it has absorbed heat in the heat absorption heat exchanger thereby increasing the refrigerating capacity, extending the useful temperature range, and reducing the net input work of the conventional compressor. The new thermodynamic cycle has an improved Coefficient of Performance.
Inventors
- 👤 Lawrence Jay Schmerzler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:25
CPC Classifications
F; F25; F25B; F25B1/00; F25B1/10; F02; F02B; F02B1/00; F02B1/02; F02B1/04; F25B2400/00; F25B2400/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
208 words
An expander-compressor transducer for expanding refrigerant fluid from a high pressure source into a low pressure heat absorbing heat exchanger while simultaneously precompressing the same fluid stream drived from the low pressure heat absorbing heat exhanger for delivery through suitable conduit heat exchangers to the suction side of the high pressure source, comprising a body member enclosing a chamber for confinement of a refrigerant fluid. fluid responsive piston means arranged to oscillate in said chamber and dividing said chamber into an expansion chamber at one end and a compression chamber at the other end, return spring control means in said compression chamber for locating said piston means into initial start-up position, fluid control regulating means for permitting flow of referigerant fluid into and out of said expansion chamber and into said compression chamber, and check valve means for permitting refrigerant flow out of said compression chamber whenever the pressure in said compression chamber is higher than the fluid pressure immediately downstream of said check valve means. thereby effecting oscillatory movement of said fluid responsive piston means within said chamber, causing concurrently the refrigerant fluid stream to expand in said expansion chamber and to compress in said compression chamber, and producing simultaneously a cooling effect and a work output.
Claim 2
Dependent Claim
208 words
An expander-compressor transducer for expanding refrigerant fluid from a high pressure source into a low pressure heat absorbing heat exchanger while simultaneously precompressing the same fluid stream drived from the low pressure heat absorbing heat exhanger for delivery through suitable conduit heat exchangers to the suction side of the high pressure source, comprising a body member enclosing a chamber for confinement of a refrigerant fluid. fluid responsive piston means arranged to oscillate in said chamber and dividing said chamber into an expansion chamber at one end and a compression chamber at the other end, return spring control means in said compression chamber for locating said piston means into initial start-up position, fluid control regulating means for permitting flow of referigerant fluid into and out of said expansion chamber and into said compression chamber, and check valve means for permitting refrigerant flow out of said compression chamber whenever the pressure in said compression chamber is higher than the fluid pressure immediately downstream of said check valve means. thereby effecting oscillatory movement of said fluid responsive piston means within said chamber, causing concurrently the refrigerant fluid stream to expand in said expansion chamber and to compress in said compression chamber, and producing simultaneously a cooling effect and a work output.
Claim 3
Dependent Claim
169 words
An expander-compressor transducer for expanding refrigerant fluid from a high pressure source into a low pressure heat absorbing heat exchanger while simultaneously precompressing the same fluid stream derived from the low pressure heat absorbing heat exchanger for delivery through suitable conduit heat exchangers to the suction side of the high pressure source, comprising an expansible chamber, fluid responsive piston means arranged to oscillate in said chamber and dividing said chamber into an expansion chamber and a compression chamber, return spring control means in said compression chamber for locating said piston into initial start-up position, fluid passage control means for supplying refrigerant fluid into said expansion chamber, check valve means for permitting refrigerant flow out of said compression chamber whenever the pressure in said compression chamber is higher than the fluid pressure immediately downstream of said check valve means, fluid output and fluid input means for controlling the flow of refrigerant fluid to and from said expansion chamber and for controlling the flow of refrigerant fluid to said compression chamber.
Claim 4
Dependent Claim
169 words
An expander-compressor transducer for expanding refrigerant fluid from a high pressure source into a low pressure heat absorbing heat exchanger while simultaneously precompressing the same fluid stream derived from the low pressure heat absorbing heat exchanger for delivery through suitable conduit heat exchangers to the suction side of the high pressure source, comprising an expansible chamber, fluid responsive piston means arranged to oscillate in said chamber and dividing said chamber into an expansion chamber and a compression chamber, return spring control means in said compression chamber for locating said piston into initial start-up position, fluid passage control means for supplying refrigerant fluid into said expansion chamber, check valve means for permitting refrigerant flow out of said compression chamber whenever the pressure in said compression chamber is higher than the fluid pressure immediately downstream of said check valve means, fluid output and fluid input means for controlling the flow of refrigerant fluid to and from said expansion chamber and for controlling the flow of refrigerant fluid to said compression chamber.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-12 | 1981-12-12 | 1982-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-12 | 1985-12-12 | 1986-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-12 | 1989-12-12 | 1990-06-13 | $7700.00 | Window Closed / Lapsed |