US3734474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carburetor for internal combustion engines
Assignee: Individual
•
Filing: 1970-10-30
•
Granted: 1973-05-22
•
Expires: 1990-10-30
Abstract
Abstract A very fine subdivision of the gasoline in a carburetor and complete combustion are achieved by means of a microporous body, prepared from sintered granulated iron. The microporous body is placed in a tank which is connected with a suction duct for the flow of air. The microporous body is longitudinally crossed by a slot, provided with cylindrical columns made of porous materials. The microporous body and the columns are soaked in gasoline. The gasoline flows through a hole, the opening of which is regulated by the vertical oscillatory motion of a conical needle, the motion being provided by a diaphragm and by an adjustable spring. On the opposite side of the suction duct, is a gate constituted of two bulkheads, the opening and closing of which are controlled by the accelerator. Air touches the surface of the columns on which are formed microscopic myriads of gasoline drops and a fine mist is formed.
Inventors
- 👤 P Olati
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:25
CPC Classifications
F; F02; F02M; F02M17/00; F02M17/18; F02M17/26; F02M17/28
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
168 words
A carburetor for internal combustion engines which comprises a duct for the introduction of air, a tank communicating therewith, a microporous body located in said tank, said microporous body being longitudinally crossed by a slot and having a plurality of passageways, metal walls separating the passageways, a plurality of columns in said passageways, said columns and said microporous body being integral therebetween, said microporous body and said columns being made of sintered high purity iron, means responsive to intake manifold vacuum for introducing the fuel and a chamber for the fuel, said chamber communicating with said passageways wherein the columns are located, whereby the drops of fuel form a mist on the surface of said columns and a mixture of fuel and air is formed, said passageways providing the means for conveying the mixture of fuel and air to the engine, means responsive to the accelerator and to the engine for controlling the number of said passageways which provide said mixture of air and fuel to the engine.
Claim 2
Dependent Claim
168 words
A carburetor for internal combustion engines which comprises a duct for the introduction of air, a tank communicating therewith, a microporous body located in said tank, said microporous body being longitudinally crossed by a slot and having a plurality of passageways, metal walls separating the passageways, a plurality of columns in said passageways, said columns and said microporous body being integral therebetween, said microporous body and said columns being made of sintered high purity iron, means responsive to intake manifold vacuum for introducing the fuel and a chamber for the fuel, said chamber communicating with said passageways wherein the columns are located, whereby the drops of fuel form a mist on the surface of said columns and a mixture of fuel and air is formed, said passageways providing the means for conveying the mixture of fuel and air to the engine, means responsive to the accelerator and to the engine for controlling the number of said passageways which provide said mixture of air and fuel to the engine.
Claim 3
Dependent Claim
22 words
The carburetor according to claim 1 wherein a conical needle capable of a vertical oscillatory motion controls the flow of the fuel.
Claim 4
Dependent Claim
23 words
The carburetor according to claim 1 which is provided with means for admitting additional fuel to the upper part of the microporous body.
Claim 5
Dependent Claim
24 words
The carburetor according to claim 1 wherein the fuel droplets coming in contact with air are of size in the order of 1 micron.
Claim 6
Dependent Claim
61 words
The carburetor according to claim 1 wherein said means for controlling the number of passageways for the mixture of fuel and air is a gate consisting of two bulkheads and provided with ferrules engageable by camming means responsive to the accelerator and responsive to the engine, said ferrules being capable of performing a rectilinear motion from the center towards the exterior.
Claim 7
Dependent Claim
13 words
The carburetor according to claim 5 wherein said bulkheads are connected by springs.
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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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |