US4237840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal system for supplying gases to internal combustion engine
Assignee: Individual
•
Filing: 1979-04-12
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Granted: 1980-12-09
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Expires: 1999-04-12
Abstract
Abstract The disclosure is of a system for collecting and filtering gases and vapors produced in various parts of an internal combustion engine and combining them with fresh air and supplying the mixture to the engine with the fuel-air mixture from the carburetor to improve combustion.
Inventors
- 👤 Andres Figueiras
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:25
CPC Classifications
F; F02; F02M; F02M25/00; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
206 words
An internal combustion engine fuel supply system, comprising a fuel inlet manifold, a carburetor supplying a fuel-air mixture to the inlet mainfold, an exhaust manifold, a radiator within which a coolant is circulated, a crankcase having a lubricant therein, a transmission casing having a lubricant therein, a fuel tank, a filter chamber having inlet and outlet ports and filter means therein, a header chamber, means connecting the header chamber to the inlet port of the filter chamber, means connecting the header chamber to the exhaust manifold, to the radiator supply tank above the level of coolant therein, to the crankcase above the level of lubricant therein, to the transmission casing above the level of lubricant therein, and to the fuel tank above the level of fuel therein, means for connecting the outlet port of the filter chamber to the inlet manifold, means connected between the outlet port of the filter chamber and the inlet manifold for increasing the velocity of the gas passing to the inlet manifold comprising a chamber having therein a restricted passage through which gas flowing from the filter chamber to the inlet manifold must pass, and means for supplying atmospheric air to the restricted passage for mixture with the gas passing therethrough.
Claim 2
Dependent Claim
206 words
An internal combustion engine fuel supply system, comprising a fuel inlet manifold, a carburetor supplying a fuel-air mixture to the inlet mainfold, an exhaust manifold, a radiator within which a coolant is circulated, a crankcase having a lubricant therein, a transmission casing having a lubricant therein, a fuel tank, a filter chamber having inlet and outlet ports and filter means therein, a header chamber, means connecting the header chamber to the inlet port of the filter chamber, means connecting the header chamber to the exhaust manifold, to the radiator supply tank above the level of coolant therein, to the crankcase above the level of lubricant therein, to the transmission casing above the level of lubricant therein, and to the fuel tank above the level of fuel therein, means for connecting the outlet port of the filter chamber to the inlet manifold, means connected between the outlet port of the filter chamber and the inlet manifold for increasing the velocity of the gas passing to the inlet manifold comprising a chamber having therein a restricted passage through which gas flowing from the filter chamber to the inlet manifold must pass, and means for supplying atmospheric air to the restricted passage for mixture with the gas passing therethrough.
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) | 1983-12-09 | 1984-06-09 | 1984-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-09 | 1988-06-09 | 1988-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-09 | 1992-06-09 | 1992-12-09 | $7700.00 | Window Closed / Lapsed |