Patent US4235206A successfully refreshed from Google Patents.
US4235206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two cycle internal combustion engine
Assignee: Performance Industries Inc
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Filing: 1978-12-14
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Granted: 1980-11-25
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Expires: 1998-12-14
Abstract
Abstract A two-cycle internal combustion engine having reed-type intake valving, and especially configured and positioned intake and injector porting, with the porting constructed and arranged to improve various of the operating characteristics of the engine, and particularly adapted to increase the effectiveness of the injection through the injector porting.
Inventors
- 👤 Eyvind Boyesen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:33
CPC Classifications
F; F01; F01L; F01L3/00; F01L3/20; F01L3/205; F02; F02B; F02B33/00; F02B33/02; F02B33/28; F02B33/30; F16; F16K; F16K15/00; F16K15/14; F16K15/16; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; F16K15/161; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/7888; Y10T137/7891
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A fuel intake system for an internal combustion engine having fuel intake porting, a fuel intake channel communicating with the intake porting and extended therefrom to a fuel supply offset from the cylinder and providing for flow of fuel from said supply to the intake porting, a valve body in the fuel intake channel having two planar converging walls defining a wedge-shaped valve body structure having its base presented upstream of the fuel flow toward the fuel supply and having a transverse apex member presented downstream toward the intake porting, each of the converging walls having an inlet opening therein and a reed valve overlying each opening, the reed valves being connected with the valve body structure in regions remote from said apex member, with the edge portions of the reed valves adjacent the apex member free to flex away from said inclined walls and thereby uncover the inlet openings, and said apex member having a subsonic teardrop aerodynamic contour with the rounded surface thereof presented upstream of the direction of fuel flow toward the interior of the valve body.
Claim 2
Dependent Claim
180 words
A fuel intake system for an internal combustion engine having fuel intake porting, a fuel intake channel communicating with the intake porting and extended therefrom to a fuel supply offset from the cylinder and providing for flow of fuel from said supply to the intake porting, a valve body in the fuel intake channel having two planar converging walls defining a wedge-shaped valve body structure having its base presented upstream of the fuel flow toward the fuel supply and having a transverse apex member presented downstream toward the intake porting, each of the converging walls having an inlet opening therein and a reed valve overlying each opening, the reed valves being connected with the valve body structure in regions remote from said apex member, with the edge portions of the reed valves adjacent the apex member free to flex away from said inclined walls and thereby uncover the inlet openings, and said apex member having a subsonic teardrop aerodynamic contour with the rounded surface thereof presented upstream of the direction of fuel flow toward the interior of the valve body.
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) | 1983-11-25 | 1984-05-26 | 1984-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-25 | 1988-05-26 | 1988-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-25 | 1992-05-26 | 1992-11-25 | $7700.00 | Window Closed / Lapsed |