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US4989558A Expired / Lapsed US ⏱️ 0.0 years remaining

Spherical rotary valve assembly for an internal combustion engine

Assignee: Individual
•
Filing: 1989-09-14
•
Granted: 1991-02-05
•
Expires: 2009-09-14
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Abstract

Abstract A spherical rotary valve assembly for an internal combustion engine of the piston and cylinder type wherein the spherical rotary valve assembly is positioned within a split cylinder head having an upper and lower section, such when secured defines a cavity for a rotational shaft having mounted thereon, an intake drum and exhaust drum for each cylinder, the lower half of the split head cylinder head having positioned therein, the inlet port and outlet port for the cylinder, the split cylinder head having an intake passageway and an exhaust passageway in communication with the drum cavities in the split cylinder head, the rotation of the respective intake drum and exhaust drum within their respective cavities interrupting the respective flow of the fuel air mixture or the exhaust gases to or from the cylinder by means of passageways within the drums, the drums rotating within the cavities in a gas tight sealing rotation on an annular sealing means axially positioned about the inlet port and outlet port in the lower section of the split head assembly such that the frictional contact encountered is that of the drums in contact with the seals and the shaft in contact with journaled bearings in the split head assembly, there being a pair of drums associated with each cylinder.

Inventors

  • 👤 George J. Coates

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 21:41
CPC Classifications
F; F01; F01L; F01L7/00; F01L7/16; F01L7/10; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; F02F; F02F7/00; F02F7/006; F02F2007/0063

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 81 words
An improved rotary intake valve for use in a rotary valved internal combustion engine, which comprises: a drum body of spherical section formed by two parallel planar side walls of a sphere disposed about a center thereof thereby defining a spherically-shaped end wall and formed with a shaft receiving aperture, said drum body formed with a circularly-shaped cavity in a side wall thereof and with a channel extending between said circularly-shaped cavity and an aperture formed in said spherically-shaped end wall.
Claim 2
Dependent Claim 81 words
An improved rotary intake valve for use in a rotary valved internal combustion engine, which comprises: a drum body of spherical section formed by two parallel planar side walls of a sphere disposed about a center thereof thereby defining a spherically-shaped end wall and formed with a shaft receiving aperture, said drum body formed with a circularly-shaped cavity in a side wall thereof and with a channel extending between said circularly-shaped cavity and an aperture formed in said spherically-shaped end wall.
Claim 3
Dependent Claim 19 words
The improved rotary intake valve as defined in claim 1 wherein said circularly-shaped cavity is U-shaped in cross section.
Claim 4
Dependent Claim 18 words
The improved rotary intake valve as defined in claim 1 wherein said aperture is circular in cross section.
Claim 5
Dependent Claim 27 words
The improved rotary intake valve as defined in claim 1 wherein said shaft receiving aperture is longitudinally formed on said center extending between said planar side walls.
Claim 6
Dependent Claim 26 words
The improved rotary intake valve as defined in claim 1 wherein an intersecting edge about said aperture is rounded with respect to said spherically-shaped end wall.
Claim 7
Dependent Claim 25 words
The improved rotary intake valve as defined in claim 1 wherein said planar side walls are symmetrically disposed about said center of said drum body.
Claim 8
Dependent Claim 21 words
The improved rotary intake valve as defined in claim 1 wherein said aperture is centrally disposed on said spherically-shaped end wall.
Claim 9
Dependent Claim 78 words
An improved rotary exhaust valve for use in a rotary valved internal combustion engine, which comprises: a drum body of spherical section formed by two parallel planar side walls of a sphere disposed about a center of said sphere thereby defining a spherically-shaped end wall; and formed with a shaft receiving aperture, said drum body formed with a conduit extending between an aperture in said spherically-shaped end wall to an aperture in one of said planar side walls.
Claim 10
Dependent Claim 78 words
An improved rotary exhaust valve for use in a rotary valved internal combustion engine, which comprises: a drum body of spherical section formed by two parallel planar side walls of a sphere disposed about a center of said sphere thereby defining a spherically-shaped end wall; and formed with a shaft receiving aperture, said drum body formed with a conduit extending between an aperture in said spherically-shaped end wall to an aperture in one of said planar side walls.
Claim 11
Dependent Claim 22 words
The improved rotary exhaust valve as defined in claim 8 wherein said aperture in said end wall is circular in cross section.
Claim 12
Dependent Claim 27 words
The improved rotary exhaust valve as defined in claim 8 wherein said shaft receiving aperture is longitudinally formed on said center extending between said planar side walls.
Claim 13
Dependent Claim 26 words
The improved rotary exhaust valve as defined in claim 8 wherein an intersecting edge about said aperture is rounded with respect to said spherically-shaped end wall.
Claim 14
Dependent Claim 25 words
The improved rotary exhaust valve as defined in claim 8 wherein said planar side walls are symmetrically disposed about said center of said drum body.
Claim 15
Dependent Claim 21 words
The improved rotary exhaust valve as defined in claim 8 wherein said aperture is centrally disposed on said spherically-shaped end wall.

References Cited (Backward Citations)

US1347978A Cited
US2617395A Cited
US3945364A Cited
US4116189A Cited
US4198946A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-02-04 1994-08-06 1995-02-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-02-04 1998-08-06 1999-02-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-02-04 2002-08-06 2003-02-05 $7700.00 Window Closed / Lapsed

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