US3766900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion chamber for interval combustion engines
Assignee: Individual
•
Filing: 1972-06-05
•
Granted: 1973-10-23
•
Expires: 1992-06-05
Abstract
Abstract Combustion chamber for four-stroke internal combustion engines, a recess being formed in the head thereof and accomodating a baffle causing said recess to take a substantially heart-like configuration. In piston of said combustion chamber a recess is also formed and has a baffle causing said recess to take a similar heart-like configuration. In the engine, the two recesses for the head and cylinder are respectively opposite the cylinder and portions baffles, so that the combustion chamber comprises two distinct chamber portions in juxtaposed relationship and communicating through ''''8''''-shaped passages. Thus, a perfect combustion of the mixture and high engine efficiency is provided.
Inventors
- 👤 G Aiti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:24
CPC Classifications
F; F02; F02B; F02B23/00; F02B23/08; F02F; F02F3/00; F02F3/24; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
181 words
A combustion chamber for internal combustion engines having a piston, in the crown of which a recess is formed as defined by a rounded surface, and a head also having a recess defined by rounded surfaces and in which bores are provided for the valves and sparking plugs, the combustion chamber being characterized in that the maximum depth of the piston crown recess is substantially at the axis of the piston, in said piston crown recess a baffle extends and has its tip also substantially at the axis of the piston, in that a baffle projects from the head recess and extends between said valve bores, and both of said baffles are so shaped that said piston and head recesses are both substantially contoured as a stylized heart, in that in the engine comprising the combustion chamber the median planes for the piston and head baffles are coplanar to each other and the tips of said baffles substantially lie on said axis of the piston, and the head recess overlaps the piston baffle, while the piston recess overlaps the head baffle.
Claim 2
Dependent Claim
181 words
A combustion chamber for internal combustion engines having a piston, in the crown of which a recess is formed as defined by a rounded surface, and a head also having a recess defined by rounded surfaces and in which bores are provided for the valves and sparking plugs, the combustion chamber being characterized in that the maximum depth of the piston crown recess is substantially at the axis of the piston, in said piston crown recess a baffle extends and has its tip also substantially at the axis of the piston, in that a baffle projects from the head recess and extends between said valve bores, and both of said baffles are so shaped that said piston and head recesses are both substantially contoured as a stylized heart, in that in the engine comprising the combustion chamber the median planes for the piston and head baffles are coplanar to each other and the tips of said baffles substantially lie on said axis of the piston, and the head recess overlaps the piston baffle, while the piston recess overlaps the head baffle.
Claim 3
Dependent Claim
27 words
A combustion chamber as claimed in claim 1, wherein the sparking plug bore is drilled at the median plane of that baffle extending in the head recess.
References Cited (Backward Citations)
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US2514730A
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US2688320A
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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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |