US4209472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel supply system
Assignee: Child Laboratories Inc
•
Filing: 1976-10-29
•
Granted: 1980-06-24
•
Expires: 1996-10-29
Abstract
Abstract An apparatus for supplying aerosol fuel particles uniformly mixed with air to utilizer, as an internal combustion engine or burner. The apparatus has several fuel mixing and atomizing nozzles operable to mix one or more liquid hydrocarbon fuels and discharge the fuels through orifices in small fuel particles of uniform size. The fuel particles are mixed with air and flow through a pair of venturi throats with converging inlet walls and diverging outlet walls. The velocity of the air and fuel particles flowing through the venturi throats is at or above the speed of sound. The fuel particles are finely divided into particles between 0.5 and 1.5 micron in diameter as they move through the turbulent inlet and outlet interfaces of the air flowing through the nozzle throats at sonic and supersonic velocities and are evenly distributed into the air. The length or major dimension of one of the venturi throats is regulated with a baffle in accordance with the speed requirements of the engine.
Inventors
- 👤 Francis W. Child
- 👤 Richard O. Bartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:32
CPC Classifications
F; F23; F23C; F23C99/00; F23C99/003; F02; F02M; F02M27/00; F02M27/08; F02M29/00; F02M29/04; F23D; F23D11/00; F23D11/34; F02B; F02B1/00; F02B1/02; F02B1/04; Y; Y10; Y10S; Y10S261/00; Y10S261/48; Y10S261/56; Y10S261/78
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
160 words
An apparatus for supplying an air and fuel particle mixture to a means for using the mixture comprising: a housing having a passage adapted to carry an air and fuel particle mixture to the means for using the mixture, first means for introducing particles of fuel into the passage, said particles of fuel being mixed with air in said passage to form an air and fuel particle mixture, and second means mounted on the housing and located in the passage downstream of the first means forming a first venturi throat and a second venturi throat, said first venturi throat being unobstructed and smaller than the second venturi throat, said first and second venturi throats receiving the air and fuel particle mixture and directing the mixture to the means for using the mixture, and control means for controlling the flow of the air and fuel mixture only through said second venturi throat, said first venturi throat remaining open at all times.
Claim 2
Independent Claim
160 words
An apparatus for supplying an air and fuel particle mixture to a means for using the mixture comprising: a housing having a passage adapted to carry an air and fuel particle mixture to the means for using the mixture, first means for introducing particles of fuel into the passage, said particles of fuel being mixed with air in said passage to form an air and fuel particle mixture, and second means mounted on the housing and located in the passage downstream of the first means forming a first venturi throat and a second venturi throat, said first venturi throat being unobstructed and smaller than the second venturi throat, said first and second venturi throats receiving the air and fuel particle mixture and directing the mixture to the means for using the mixture, and control means for controlling the flow of the air and fuel mixture only through said second venturi throat, said first venturi throat remaining open at all times.
Claim 3
Dependent Claim
119 words
The apparatus of claim 1 wherein: the second means includes a first side wall secured to the inside of a first portion of the housing, second side wall secured to the inside of the second portion of the housing, said first and second side walls having first and second convex curved surfaces respectively, a divider member located between said first and second side walls, said divider member having third and fourth outside convex surfaces facing the convex surfaces of the first and second side walls, said first convex surface being spaced from the third convex surface to form said first venturi throat, said second convex surface being spaced from the fourth convex surface to form said second venturi throat.
Claim 4
Dependent Claim
27 words
The apparatus of claim 2 wherein: the first and second side walls and the divider are elongated, linear members located in parallel relation relative to each other.
Claim 5
Dependent Claim
22 words
The apparatus of claim 1 wherein: the first venturi throat has a width smaller than the width of the second venturi throat.
Claim 6
Dependent Claim
27 words
The apparatus of claim 1 wherein: the first venturi throat has an elongated first rectangular shape and the second venturi throat has an elongated second rectangular shape.
Claim 7
Dependent Claim
22 words
The apparatus of claim 5 wherein: the first rectangular shape has a width smaller than the width of the second rectangular shape.
Claim 8
Dependent Claim
28 words
The apparatus of claim 6 wherein: the control means is a movable member operable to change the length of the second rectangular shape of the second venturi throat.
Claim 9
Dependent Claim
31 words
The apparatus of claim 1 wherein: the control means comprises a plate movably mounted on the housing for movement generally along the length of said divider member and second side wall.
Claim 10
Independent Claim
187 words
An apparatus for supplying an air and fuel particle mixture to means for using the mixture comprising: housing means having a passage adapted to carry air and fuel mixture to the means for using the mixture, first means for introducing particles of fuel into the passage, said particles of fuel being mixed with air in said passage to form an air and particle mixture, and second means mounted on the housing and located in the passage downstream of the first means forming a first venturi throat and a second venturi throat, said first venturi throat being unobstructed and smaller than the second venturi throat, said second means including a divider member separating said first venturi throat from said second venturi throat whereby said air and fuel particle mixture flow through said first and second venturi throats to the means for using the mixture, and control means located over said second venturi throat for controlling the flow of air and fuel particle mixture only through said second venturi throat, said first venturi throat remaining open at all times for accommodating flow of said air and fuel particle mixture.
Claim 11
Independent Claim
187 words
An apparatus for supplying an air and fuel particle mixture to means for using the mixture comprising: housing means having a passage adapted to carry air and fuel mixture to the means for using the mixture, first means for introducing particles of fuel into the passage, said particles of fuel being mixed with air in said passage to form an air and particle mixture, and second means mounted on the housing and located in the passage downstream of the first means forming a first venturi throat and a second venturi throat, said first venturi throat being unobstructed and smaller than the second venturi throat, said second means including a divider member separating said first venturi throat from said second venturi throat whereby said air and fuel particle mixture flow through said first and second venturi throats to the means for using the mixture, and control means located over said second venturi throat for controlling the flow of air and fuel particle mixture only through said second venturi throat, said first venturi throat remaining open at all times for accommodating flow of said air and fuel particle mixture.
Claim 12
Dependent Claim
20 words
The apparatus of claim 9 wherein: the first venturi throat and the second venturi throat each have generally rectangular shapes.
Claim 13
Dependent Claim
118 words
The apparatus of claim 9 wherein: the second means includes a first wall secured to the inside of a first portion of the housing, a second side wall secured to the inside of the second portion of the housing, said first and second side walls having first and second convex curved surfaces respectively, said divider being located between said first and second side walls, said divider having third and fourth outside convex surfaces facing the convex surfaces of said first and second side walls, said first convex surface being spaced from the third convex surface to form said first venturi throat, said second convex surface being spaced from the fourth convex surface to form the second venturi throat.
Claim 14
Dependent Claim
27 words
The apparatus of claim 11 wherein: the first and second side walls and a divider are elongated linear members located in parallel relation relative to each other.
Claim 15
Dependent Claim
22 words
The apparatus of claim 11 wherein: the first venturi throat has a width smaller than the width of the second venturi throat.
Claim 16
Dependent Claim
26 words
The apparatus of claim 11 wherein: the first venturi throat has an elongated first rectangular shape, and the second venturi throat has an elongated rectangular shape.
Claim 17
Dependent Claim
23 words
The apparatus of claim 9 wherein: the control means is a movable member operable to change the length of the second venturi throat.
Claim 18
Dependent Claim
37 words
The apparatus of claim 9 wherein: the control means includes a plate movably mounted on the housing and divider for movement generally along the length of the divider to change the length of the second venturi throat.
Claim 19
Dependent Claim
88 words
A venturi apparatus for carrying a fluid comprising: a housing having a passage adapted to carry fluid to a desired location, means associated with the housing forming a first venturi throat and a second venturi throat located in the passage for accommodating fluid flowing through said passage, said first venturi throat being unobstructed and smaller than the second venturi throat, and control means for controlling only the flow of fluid through said second venturi throat, said first venturi throat remaining open at all times for accommodating flowing fluid.
Claim 20
Dependent Claim
88 words
A venturi apparatus for carrying a fluid comprising: a housing having a passage adapted to carry fluid to a desired location, means associated with the housing forming a first venturi throat and a second venturi throat located in the passage for accommodating fluid flowing through said passage, said first venturi throat being unobstructed and smaller than the second venturi throat, and control means for controlling only the flow of fluid through said second venturi throat, said first venturi throat remaining open at all times for accommodating flowing fluid.
Claim 21
Dependent Claim
20 words
The apparatus of claim 17 wherein: the first venturi throat and the second venturi throat each have generally rectangular shapes.
Claim 22
Dependent Claim
121 words
The apparatus of claim 17 wherein: the means associated with the housing includes a first wall secured to the inside of a first portion of the housing, a second side wall secured to the inside of the second portion of the housing, said first and second side walls having first and second convex curved surfaces respectively, said divider being located between said first and second side walls, said divider having third and fourth outside convex surfaces facing the convex surfaces of said first and second side walls, said first convex surface being spaced from the third convex surface to form said first venturi throat, said second convex surface being spaced from the fourth convex surface to form the second venturi throat.
Claim 23
Dependent Claim
27 words
The apparatus of claim 19 wherein: the first and second side walls and a divider are elongated linear members located in parallel relation relative to each other.
Claim 24
Dependent Claim
22 words
The apparatus of claim 19 wherein: the first venturi throat has a width smaller than the width of the second venturi throat.
Claim 25
Dependent Claim
26 words
The apparatus of claim 19 wherein: the first venturi throat has an elongated first rectangular shape, and the second venturi throat has an elongated rectangular shape.
Claim 26
Dependent Claim
23 words
The apparatus of claim 17 wherein: the control means is a movable member operable to change the length of the second venturi throat.
Claim 27
Dependent Claim
37 words
The apparatus of claim 17 wherein: the control means includes a plate movably mounted on the housing and divider for movement generally along the length of the divider to change the length of the second venturi throat.
References Cited (Backward Citations)
US2791994A
Cited
US2907648A
Cited
US3086758A
Cited
US3768787A
Cited
DE2318779A1
Cited
US4038348A
Cited
US3804329A
Cited
US3965221A
Cited
US4034025A
Cited
US4044077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-06-24 | 1983-12-24 | 1984-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-24 | 1987-12-24 | 1988-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-24 | 1991-12-24 | 1992-06-24 | $7700.00 | Window Closed / Lapsed |