US4879979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intake and exhaust system through rotatory ports shaft, in four-stroke motors
Assignee: Individual
•
Filing: 1988-03-29
•
Granted: 1989-11-14
•
Expires: 2008-03-29
Abstract
Abstract An intake and exhaust system through rotatory port shafts, in four-stroke motors, through which are suppressed the camshaft, valve tappets, rocker arms and valves of conventional motors. The system is based on a hollow shaft located in a jacket and the whole assembly is mounted on the cylinder head body of the engine and supported on bearings. The shaft has ports transversely through in communication with the cylinder chambers, quite independently from the combustion order, having the ports shaft lubricating and water-cooling means, being engaged the shaft to a gear driven by the crankshaft of the engine, being 1:4 the ratio of the shaft to the crankshaft rotation.
Inventors
- 👤 Felix O. Triguero
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:21
CPC Classifications
F; F01; F01L; F01L7/00; F01L7/02; F01L7/021; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
123 words
An intake and exhaust system for use in four-stroke motors, said system comprising: a rotatory ports shaft, said shaft being generally hollow but having ports therethrough, said shaft having a nipple at one end and inclined bores at the other end; a jacket, said jacket having matching ports through its cross-section, said shaft being rotatably disposed in the jacket; a gear disposed on an end of the shaft; ball bearings supporting opposite ends of the shaft; an annular chamber in fluid communication with a cooling system of said motor, said inclined bores adjoining said annular chamber; and means for introducing water into the nipple so that the water flows through the shaft and then centrifugally enters the annular chamber through the inclined bores.
Claim 2
Dependent Claim
123 words
An intake and exhaust system for use in four-stroke motors, said system comprising: a rotatory ports shaft, said shaft being generally hollow but having ports therethrough, said shaft having a nipple at one end and inclined bores at the other end; a jacket, said jacket having matching ports through its cross-section, said shaft being rotatably disposed in the jacket; a gear disposed on an end of the shaft; ball bearings supporting opposite ends of the shaft; an annular chamber in fluid communication with a cooling system of said motor, said inclined bores adjoining said annular chamber; and means for introducing water into the nipple so that the water flows through the shaft and then centrifugally enters the annular chamber through the inclined bores.
Claim 3
Dependent Claim
25 words
An intake and exhaust system as claimed in claim 1 further comprising a plurality of rings housed and expansion-adjusted between the shaft and the jacket.
Claim 4
Dependent Claim
28 words
An intake and exhaust system as claimed in claim 1 wherein the ports are through passages which don't affect the axial passage determining the cavity of the shaft.
Claim 5
Dependent Claim
21 words
An intake and exhaust system further comprising small setting plungers disposed upon matching ports of jacket for better tightness of assembly.
Claim 6
Dependent Claim
21 words
An intake and exhaust system further comprising small setting plungers disposed upon matching ports of jacket for better tightness of assembly.
Claim 7
Dependent Claim
28 words
An intake and exhaust system as claimed in claim 2 wherein the ports are through passages which don't affect the axial passage determining the cavity of the shaft.
Claim 8
Dependent Claim
36 words
An intake and exhaust system as claimed in claim 1 wherein the annular chamber is comprised of two seals, each seal firmed disposed on each side of the inclined bore between the shaft and the jacket.
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) | 1992-11-13 | 1993-05-15 | 1993-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-13 | 1997-05-15 | 1997-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-13 | 2001-05-15 | 2001-11-14 | $7700.00 | Window Closed / Lapsed |