Patent US4226804A successfully refreshed from Google Patents.
Patent US3857375A successfully refreshed from Google Patents.
US3857375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic carburetion enchancer
Assignee: Individual
•
Filing: 1973-04-20
•
Granted: 1974-12-31
•
Expires: 1993-04-20
Abstract
Abstract An improved gasoline engine fuel vaporizer which is used in conjunction with a normal carburetor to further vaporize the fuel and provide increased engine efficiency and performance. The device is built into a gasket which normally is mounted between the carburetor and intake manifold, and uses the manifold vacuum to draw air through holes onto a jet-edge ultrasonic whistle. The ultrasonic sound provides the vaporizing action on the fuel.
Inventors
- 👤 W Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:04
CPC Classifications
F; F02; F02M; F02M27/00; F02M27/08; F02M23/00; F02M23/001; F02B; F02B1/00; F02B1/02; F02B1/04; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S261/00; Y10S261/48
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
244 words
In an internal combustion engine, in which fuel is mixed with air prior to induction into a combustion chamber, a carburetor in which the fuel and air are mixed, a passage through which the fuel-air mixture flows from the carburetor to the combustion chamber, a valve in said passage for regulating the rate of flow, an air operated ultrasonic sound generator mounted in a location downstream from the valve and in position to impress an ultrasonic jet upon the fuel-air mixture, for the purpose of improved fuel vaporization, said generator comprising a recess located in the wall of the fuel-air mixture passage and opeNing directly into the fuel-air mixture passage, an orifice of said generator through which a thin air jet flows through a wall of said passage and into the recess, and a blade spaced from the orifice and in line with the air jet at a location where the air jet has unrestrained flow past said blade and into the fuel-air mixture in the passage leading from the valve to the combustion chamber, the blade being in the recess and out of the direct path of flow and turbulence of the fuel-air mixture through the fuelair passage, and said blade including a knife edge portion extending transversely of the direction of flow of the air jet, the air jet impingement with the knife edge originating an ultrasonic shear vibration, of the jet where it merges with the fuel-air mixture in said passage.
Claim 2
Dependent Claim
244 words
In an internal combustion engine, in which fuel is mixed with air prior to induction into a combustion chamber, a carburetor in which the fuel and air are mixed, a passage through which the fuel-air mixture flows from the carburetor to the combustion chamber, a valve in said passage for regulating the rate of flow, an air operated ultrasonic sound generator mounted in a location downstream from the valve and in position to impress an ultrasonic jet upon the fuel-air mixture, for the purpose of improved fuel vaporization, said generator comprising a recess located in the wall of the fuel-air mixture passage and opeNing directly into the fuel-air mixture passage, an orifice of said generator through which a thin air jet flows through a wall of said passage and into the recess, and a blade spaced from the orifice and in line with the air jet at a location where the air jet has unrestrained flow past said blade and into the fuel-air mixture in the passage leading from the valve to the combustion chamber, the blade being in the recess and out of the direct path of flow and turbulence of the fuel-air mixture through the fuelair passage, and said blade including a knife edge portion extending transversely of the direction of flow of the air jet, the air jet impingement with the knife edge originating an ultrasonic shear vibration, of the jet where it merges with the fuel-air mixture in said passage.
Claim 3
Dependent Claim
75 words
The combination described in claim 1 characterized by the orifice through which the air jet flows leading into a partial vacuum in the fuel-air passage from a region of higher pressure surrounding the outside of the structure from which the fuel-air passage extends, the air jet orifice and blade constituting a jet edge whistle, and the dimensions and air flow of the jet edge whistle having a frequency in and above the 15 kilohertz region.
Claim 4
Dependent Claim
92 words
The combination described in claim 1 characterized by a connection at which the carburetor passage is connected to the engine and joins a part of the engine through which the fuel-air mixture travels to the engine combustion chamber, two superimposed gaskets located between the carburetor and said part of the engine, the gaskets forming a housing of the ultrasonic generators, the jet opening extending through a side of the gaskets, and into a fuel-air passage through the gaskets, and the blade being clamped between the gaskets and in line with the orifice.
Claim 5
Dependent Claim
41 words
The combination described in claim 1 characterized by the blade having its narrow width approximating the comparable width of the air jet, and one edge of the blade which faces the air jet being a knife edge for generating ultrasonic sound.
Claim 6
Dependent Claim
88 words
The combination described in claim 1 characterized by a housing that connects with the carburetor with a passage in the housing constituting a continuation of the fuel-air passage of the carburetor downstream from the valve, detachable fastening means for connecting the housing with the carburetor and a plurality of ultrasonic generators at angularly spaced locations around the passage through said housing including orifices opening through a wall of the housing for admitting air from the ambient atmosphere into the housing to form the air jets for the generators.
Claim 7
Dependent Claim
80 words
The combination described in claim 1 characterized by the orifice leading through a wall of the passage communicating at its upstream end with the ambient atmosphere, and the orifice at its downstream end being subject to the partial vacuum in the passage leading from the carburetor to the combustion chamber of the engine whereby the flow of the air jet depends upon the difference in pressure between the pressure in said fuel-air passage and the pressure of the ambient atmosphere.
References Cited (Backward Citations)
US3730160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-30 | 1978-07-01 | 1978-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-30 | 1982-07-01 | 1982-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-30 | 1986-07-01 | 1986-12-31 | $7700.00 | Window Closed / Lapsed |