Patent US4515133A successfully refreshed from Google Patents.
US4515133A
Expired / Lapsed
US
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Fuel economizing device
Assignee: Individual
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Filing: 1984-05-31
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Granted: 1985-05-07
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Expires: 2004-05-31
Abstract
Abstract An internal combustion engine fuel economizing device is disclosed. A cylinder having an inlet and an outlet is installed between the fuel pump and the carburetor. Fuel discharged from the fuel pump enters the cylinder inlet through an inlet conduit. The fuel stream is filtered by a filtering device located within the inlet conduit. The fuel is concentrated in the cylinder by the fuel pump pressure, and exits the cylinder through an outlet conduit. At the terminus of the outlet conduit is a restricted opening which creates a pressure drop. The pressure drop changes the fuel stream to a liquid-vapor phase which enters the carburetor for mixing with air prior to combustion in the engine.
Inventors
- 👤 Frank Roman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:51
CPC Classifications
F; F02; F02M; F02M37/00; F02M37/0011; F02M37/0017; F02M37/22; F02M37/32; F02M37/34
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
186 words
A fuel economizing device for internal combustion engines comprising: (a) a cylinder having generally a length of about 2.25 inch and a diameter of about 0.75 inch, said cylinder also having an inlet at one end and an outlet at the opposite end; (b) a conduit, said conduit mated at its one end to said cylinder inlet, said conduit opposite end being adapted to connect to a fuel pump outlet line; (c) a second conduit, said second conduit mated at its one end to said cylinder outlet, said conduit opposite end being adapted to connect to a carburetor fuel inlet line; and, (d) a restricted opening, said restricted opening positioned at the terminus of said second conduit's opposite end, said restricted opening having a diameter ranging from about 0.045 inch to about 0.050 inch, so that fuel passing through said inlet conduit under pressure from a fuel pump, enters said cylinder where said fuel is concentrated under pressure, and exits through said restricted opening causing said fuel to atomize into a combination of liquid and vapor state due to the pressure drop across said restricted opening.
Claim 2
Dependent Claim
186 words
A fuel economizing device for internal combustion engines comprising: (a) a cylinder having generally a length of about 2.25 inch and a diameter of about 0.75 inch, said cylinder also having an inlet at one end and an outlet at the opposite end; (b) a conduit, said conduit mated at its one end to said cylinder inlet, said conduit opposite end being adapted to connect to a fuel pump outlet line; (c) a second conduit, said second conduit mated at its one end to said cylinder outlet, said conduit opposite end being adapted to connect to a carburetor fuel inlet line; and, (d) a restricted opening, said restricted opening positioned at the terminus of said second conduit's opposite end, said restricted opening having a diameter ranging from about 0.045 inch to about 0.050 inch, so that fuel passing through said inlet conduit under pressure from a fuel pump, enters said cylinder where said fuel is concentrated under pressure, and exits through said restricted opening causing said fuel to atomize into a combination of liquid and vapor state due to the pressure drop across said restricted opening.
Claim 3
Dependent Claim
34 words
The device according to claim 1 including, additionally, a filtering device mounted transverse said inlet conduit, said filtering device being a fine mesh screen, so that fuel is filtered before it enters said cylinder.
Claim 4
Dependent Claim
22 words
The device according to claim 1 wherein said inlet conduit and said outlet conduit are mated to said cylinder by threaded surfaces.
Claim 5
Independent Claim
139 words
A method to economize on fuel usage with an internal combustion engine, said method comprising: (a) passing said fuel into a fuel pump; (b) pumping said fuel from said pump into an inlet conduit of a fuel economizing device; (c) passing said fuel from said inlet conduit to a cylinder where said fuel is concentrated under pressure; said cylinder having generally a length of about 2.25 inches and a diameter of about 0.75 inch; (d) releasing said concentrated fuel from said cylinder through a restricted opening in an outlet conduit, said restricted opening having a diameter ranging from 0.045 inch to 0.050 inch, said fuel thereby atomizing into a combination of liquid and vapor due to a pressure drop across said restricted opening; and, (e) passing said atomizing fuel into said carburetor for mixing with air prior to combustion.
Claim 6
Independent Claim
139 words
A method to economize on fuel usage with an internal combustion engine, said method comprising: (a) passing said fuel into a fuel pump; (b) pumping said fuel from said pump into an inlet conduit of a fuel economizing device; (c) passing said fuel from said inlet conduit to a cylinder where said fuel is concentrated under pressure; said cylinder having generally a length of about 2.25 inches and a diameter of about 0.75 inch; (d) releasing said concentrated fuel from said cylinder through a restricted opening in an outlet conduit, said restricted opening having a diameter ranging from 0.045 inch to 0.050 inch, said fuel thereby atomizing into a combination of liquid and vapor due to a pressure drop across said restricted opening; and, (e) passing said atomizing fuel into said carburetor for mixing with air prior to combustion.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-05-06 | 1988-11-05 | 1989-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-06 | 1992-11-05 | 1993-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-06 | 1996-11-05 | 1997-05-07 | $7700.00 | Window Closed / Lapsed |