US3757757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal-combustion engine intake-valve provided with a deflector plate
Assignee: SOC ETUDES DE MACHINES THERMIQUES FR
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Filing: 1972-01-07
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Granted: 1973-09-11
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Expires: 1992-01-07
Abstract
Abstract An intake valve for an internal-combustion engine, especially a four-stroke engine, which comprises an arcuate deflector plate located on the collar of the said valve, said deflector plate being provided with spaced apertures adjacent to said valve collar.
Inventors
- 👤 D Bastenhof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:52
CPC Classifications
F; F01; F01L; F01L3/00; F01L3/06; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
In an internal combustion engine, in particular a fourstroke-cycle engine, in which the respective motions of exhaust valve closing and intake valve opening intercross or overlap, an intake valve comprising a stem, a mushroom-head, a taper collar, and an arcuate deflector plate located on the collar in coaxial relationship to said stem and provided with several spaced apertures adjacent to and directly limited by said valve collar, wherein said apertures have an height or dimension in parallel relationship to the axial direction of said valve which is equal to the common height of the raised positions of, respectively, the intake valve and the exhaust valve at the moment when the height of the raised exhaust valve during its closing is equal to the height of the raised intake valve during its openiNg.
Claim 2
Dependent Claim
132 words
In an internal combustion engine, in particular a fourstroke-cycle engine, in which the respective motions of exhaust valve closing and intake valve opening intercross or overlap, an intake valve comprising a stem, a mushroom-head, a taper collar, and an arcuate deflector plate located on the collar in coaxial relationship to said stem and provided with several spaced apertures adjacent to and directly limited by said valve collar, wherein said apertures have an height or dimension in parallel relationship to the axial direction of said valve which is equal to the common height of the raised positions of, respectively, the intake valve and the exhaust valve at the moment when the height of the raised exhaust valve during its closing is equal to the height of the raised intake valve during its openiNg.
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) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |