Patent EP0024872A1 successfully refreshed from Google Patents.
US4373476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary valve system
Assignee: Individual
•
Filing: 1980-03-07
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Granted: 1983-02-15
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Expires: 2000-03-07
Abstract
Abstract A rotary valve system for use in internal combustion engines comprises an elongated substantially cylindrical valve passage means having a threaded section at one end and an outwardly extending disc portion at the other end. The outwardly extending lower portion includes a valve disc aperture for alternate communication with inlet and outlet passages in the valve disc jacket for predetermined time periods. The bottom of the disc portion comprises the upper surface of the combustion chamber and can include a shaped protrusion for purposes of charge stratification. Rotation means support the valve disc arrangement for rotation within the cylinder head or valve disc jacket about the longitudinal axis of the assembly. The inner recess of the valve disc jacket which contacts the outwardly extending valve disc is provided with a mating carbon, graphite or molybdenum impregnated sleeve insert. Means may also be provided to couple the cylindrical passage means to a plurality of similar valve arrangements in particular engines.
Inventors
- 👤 Joseph P. Vervoordt
- 👤 Joseph J. Gorzynski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:39
CPC Classifications
F; F01; F01L; F01L7/00; F01L7/06; F02; F02B; F02B1/00; F02B1/02; F02B1/04; F02F; F02F7/00; F02F7/006
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
160 words
A rotary valve system for internal combustion engines including a valve disc jacket having an aperture therein and predetermined inlet and outlet passages, the combination comprising: an elongated substantially cylindrical valve passage means having a threaded section at one end and an outwardly extending disc portion at the other end having a downwardly extending circumferential wall with a predetermined aperture extending therealong, said disc portion having a bottom surface comprising the upper surface of a combustion chamber and an upper surface and including at least one shaped protrusion thereon for purposes of charge stratification, a ring seal having a predetermined aperture therethrough for mating with the corresponding aperture in the circumferential wall of the disc portion, said apertures periodically cooperating with the inlet and outlet passages in the valve disc jacket, and, an impregnated sleeve insert mounted between the upper surface of the disc portion and the valve disc jacket to provide a contact running surface that is run dry.
Claim 2
Dependent Claim
160 words
A rotary valve system for internal combustion engines including a valve disc jacket having an aperture therein and predetermined inlet and outlet passages, the combination comprising: an elongated substantially cylindrical valve passage means having a threaded section at one end and an outwardly extending disc portion at the other end having a downwardly extending circumferential wall with a predetermined aperture extending therealong, said disc portion having a bottom surface comprising the upper surface of a combustion chamber and an upper surface and including at least one shaped protrusion thereon for purposes of charge stratification, a ring seal having a predetermined aperture therethrough for mating with the corresponding aperture in the circumferential wall of the disc portion, said apertures periodically cooperating with the inlet and outlet passages in the valve disc jacket, and, an impregnated sleeve insert mounted between the upper surface of the disc portion and the valve disc jacket to provide a contact running surface that is run dry.
Claim 3
Dependent Claim
110 words
A rotary valve system in accordance with claim 1 wherein: the circumferential wall of the disc portion includes a recess extending about the periphery thereof for engagement with the ring seal and includes a suitable member extending across the recess, said ring seal being substantially circular and having ends including a gap therebetween to engage the suitable member and wherein: the impregnated sleeve insert comprises a graphite impregnated sleeve and includes an aperture through which the valve passage means extends, said insert being mounted in engagement with the valve disc jacket on its upper surface and outer surface and with the upper and outer surface of the valve disc portion.
Claim 4
Dependent Claim
23 words
A rotary valve system in accordance with claim 1 wherein: the cylindrical valve passage means includes at least one keyway extending axially therealong.
Claim 5
Dependent Claim
27 words
A rotary valve system in accordance with claim 1 wherein: the shaped protrusion comprises a vane-line portion extending downwardly from the lower surface of the disc portion.
Claim 6
Dependent Claim
18 words
A rotary valve system in accordance with claim 1 wherein: the insert comprises a member made of graphite.
References Cited (Backward Citations)
US3130953A
Cited
US1282602A
Cited
GB375666A
Cited
GB396641A
Cited
FR782071A
Cited
US2283594A
Cited
US2457206A
Cited
DE1911617A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-02-14 | 1986-08-16 | 1987-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-14 | 1990-08-16 | 1991-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-14 | 1994-08-16 | 1995-02-15 | $7700.00 | Window Closed / Lapsed |