Patent US4813392A successfully refreshed from Google Patents.
US4813392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary valve assembly
Assignee: Hansen Engine Corp
•
Filing: 1988-07-08
•
Granted: 1989-03-21
•
Expires: 2008-07-08
Abstract
Abstract An internal combustion engine having a heat with valve assemblies for controlling intake and exhaust gases to and from piston chambers. A head plate is located between the head and a block having cylinders accommodating pistons. The head plate has openings in communication with the cylinders and valve assemblies. Each valve assembly has a continuous ceramic sleeve having an intake port, an exhaust port, and ignition hole. Rotatably disposed within the sleeve is a rotatable valve body having a valving combustion chamber open to a piston chamber. A ceramic segment seal member movably mounted on the valving body has sealing surfaces engageable with the sleeve. A face seal is located between the head plate and the rotating valve body. The valving body and seal member are rotatably driven to sequentially align the valving combustion chamber with the intake port, ignition hole, and exhaust port during the operation of the engine.
Inventors
- 👤 Craig N. Hansen
- 👤 Paul C. Cross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:48
CPC Classifications
F; F01; F01L; F01L7/00; F01L7/16; F01L7/02; F01L7/028; F02; F02F; F02F7/00; F02F7/0085; F02F7/0087; F01L2301/00; F01L2301/02; F02B; F02B1/00; F02B1/02; F02B1/04; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; F02B3/00; F02B3/06; F05; F05C; F05C2253/00; F05C2253/16
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
266 words
A rotary valve assembly comprising: a housing having a bore, a gas inlet passage and a gas outlet passage open to the bore, a continuous cylindrical sleeve means located in said bore, said sleeve means having an inner surface and ports aligned with said passages, rotatable means located within said sleeve means for controlling the flow of gas into and out of the assembly, said rotatable valving means having a valving chamber open to means to accommodate a gas and the inner surface of the sleeve means, said rotatable valving means having a valve body, said valving chamber having an inner portion located in the valve body, said valve body having an outer surface spaced from the inner surface of the sleeve means, segment seal means mounted on the valve body for rotation therewith, said segment seal means being engageable with the inner surface of the sleeve means, said segment seal means having a hole aligned with an outer portion of the valving chamber, cooperating pin and slot means on said segment seal means and valve body to move the segment seal means with the valve body and allow the segment seal means to move about an axis generally parallel to said inner surface of the sleeve means, biasing means located between the valve body and segment seal means to hold the segment seal means into engagement with the inner surface of the sleeve means, and means operable to rotate said rotatable valving means whereby said valving passage sequentially moves into alignment with said ports allowing gas to flow in said inlet and outlet gas passages.
Claim 2
Dependent Claim
266 words
A rotary valve assembly comprising: a housing having a bore, a gas inlet passage and a gas outlet passage open to the bore, a continuous cylindrical sleeve means located in said bore, said sleeve means having an inner surface and ports aligned with said passages, rotatable means located within said sleeve means for controlling the flow of gas into and out of the assembly, said rotatable valving means having a valving chamber open to means to accommodate a gas and the inner surface of the sleeve means, said rotatable valving means having a valve body, said valving chamber having an inner portion located in the valve body, said valve body having an outer surface spaced from the inner surface of the sleeve means, segment seal means mounted on the valve body for rotation therewith, said segment seal means being engageable with the inner surface of the sleeve means, said segment seal means having a hole aligned with an outer portion of the valving chamber, cooperating pin and slot means on said segment seal means and valve body to move the segment seal means with the valve body and allow the segment seal means to move about an axis generally parallel to said inner surface of the sleeve means, biasing means located between the valve body and segment seal means to hold the segment seal means into engagement with the inner surface of the sleeve means, and means operable to rotate said rotatable valving means whereby said valving passage sequentially moves into alignment with said ports allowing gas to flow in said inlet and outlet gas passages.
Claim 3
Dependent Claim
14 words
The assembly of claim 1 wherein: the cylindrical sleeve means is a ceramic member.
Claim 4
Dependent Claim
14 words
The assembly of claim 2 wherein: the segment seal means is a ceramic member.
Claim 5
Dependent Claim
37 words
The assembly of claim 1 wherein: the cylindrical sleeve means has a cylindrical inside surface and the segment seal means is a member having an outside surface portion engageable with the inside surface of the sleeve means.
Claim 6
Dependent Claim
52 words
The assembly of claim 4 wherein: said member has a first outside surface portion surrounding the outer portion of the valving chamber engageable with the inside surface of the sleeve means, and a second outside surface portion adjacent the first outside surface portion spaced from the inside surface of the sleeve means.
Claim 7
Dependent Claim
53 words
The assembly of claim 1 wherein: said valve body has a circumferential outwardly directed upper lip and a lower lip, said segment seal means being located between said lips, said cooperating pin and slot means comprising a slot in each lip and pin means secured to the valve body extended into the slots.
Claim 8
Dependent Claim
41 words
The assembly of claim 6 wherein: said biasing means comprises circular spring means surrounding the valve passage and engageable with the valve body and segment seal means, said spring means also providing a seal between the body and segment seal means.
Claim 9
Dependent Claim
28 words
The assembly of claim 7 wherein: said segment seal means has tongues adjacent opposite sides of the valve body passage, said spring means being located between said tongues.
Claim 10
Dependent Claim
25 words
The assembly of claim 7 including: a ring shield means located inwardly of the circular spring means between the valve body and segment seal means.
Claim 11
Dependent Claim
26 words
The engine of claim 1 wherein: the axis of movement of segment seal means is generally parallel to the axis of rotation of the valve body.
Claim 12
Dependent Claim
49 words
The assembly of claim 1 wherein: said segment seal means has an outside surface portion surrounding the outer portions of the valving passage and engageable with the inside surface of the housing, and land means located adjacent the outside surface portion engageable with the inside surface of the housing.
Claim 13
Dependent Claim
31 words
The assembly of claim 11 wherein: said segment seal means has outside surface sections located around the outside surface portions and land means spaced from said inside surface of the housing.
Claim 14
Dependent Claim
238 words
A rotary valve assembly comprising: housing means having an inner surface and fluid inlet and outlet ports open to the inner surface, rotatable means located within the housing means for controlling the flow of fluid into and out of the assembly, said rotatable valving means having a valving chamber open to means to accommodate a fluid, said rotatable valving means having a valve body, said valve body having an outer surface spaced from the inner surface of the housing means, segment seal means mounted on the valve body engageable with said inner surface of said housing means, said segment seal means having a passage in communication with the second chamber and open to said inner surface to allow fluid to flow into and out of said chamber, cooperating pin and slot means on said segment seal means and valve body to move the segment seal means with the valve body and allow the segment seal means to move about an axis generally parallel to said inner surface of the housing means, biasing means located between the segment valve body and seal means to hold the segment seal means into engagement with the inner surface of the housing means, and means operable to rotate said valve body whereby said valving chamber sequentially moves into alignment with said ports allowing fluid to flow in said fluid inlet and outlet ports into and out of said chamber in the valve body.
Claim 15
Dependent Claim
238 words
A rotary valve assembly comprising: housing means having an inner surface and fluid inlet and outlet ports open to the inner surface, rotatable means located within the housing means for controlling the flow of fluid into and out of the assembly, said rotatable valving means having a valving chamber open to means to accommodate a fluid, said rotatable valving means having a valve body, said valve body having an outer surface spaced from the inner surface of the housing means, segment seal means mounted on the valve body engageable with said inner surface of said housing means, said segment seal means having a passage in communication with the second chamber and open to said inner surface to allow fluid to flow into and out of said chamber, cooperating pin and slot means on said segment seal means and valve body to move the segment seal means with the valve body and allow the segment seal means to move about an axis generally parallel to said inner surface of the housing means, biasing means located between the segment valve body and seal means to hold the segment seal means into engagement with the inner surface of the housing means, and means operable to rotate said valve body whereby said valving chamber sequentially moves into alignment with said ports allowing fluid to flow in said fluid inlet and outlet ports into and out of said chamber in the valve body.
Claim 16
Dependent Claim
14 words
The assembly of claim 13 wherein: the segment seal means is a ceramic member.
Claim 17
Dependent Claim
53 words
The assembly of claim 13 wherein: said segment seal means has a first outside surface portion surrounding the outer portion of the valving passage engageable with the inside surface of the housing means, and a second surface portion adjacent the first outside surface portion spaced from said inside surface of the housing means.
Claim 18
Dependent Claim
28 words
The assembly of claim 13 wherein: said housing means includes a sleeve having said inner surface, said sleeve having said fluid inlet port and said fluid outlet port.
Claim 19
Dependent Claim
22 words
The assembly of claim 16 wherein: said segment seal means is a ceramic member and said sleeve is a cylindrical ceramic member.
Claim 20
Dependent Claim
56 words
The assembly of claim 13 wherein: said valve body has a circumferential outwardly directed upper lip and a lower lip, said segment seal means being located between said upper and lower lips, said cooperating pin and slot means comprising a slot in each lip and pin means secured to the valve body extended into the slots.
Claim 21
Dependent Claim
50 words
The assembly of claim 13 wherein: said segment seal means has an outside surface portion surrounding the outer portion of the valving passage engageable with the inner surface of the housing means, and land means located adjacent the outside surface portion engageable with the inner surface of the housing means.
Claim 22
Dependent Claim
32 words
The assembly of claim 19 wherein: said segment seal means has outside surface sections located around the outside surface portions and land means spaced from said inside surface of the housing means.
Claim 23
Dependent Claim
42 words
The assembly of claim 13 wherein: said biasing means comprises circular spring means surrounding the valve passage and engageable with the valve body and segment seal means, said spring means also providing a seal between the valve body and segment seal means.
Claim 24
Dependent Claim
26 words
The assembly of claim 21 wherein: said segment seal means has tongues adjacent opposite sides of the passage, said spring means being located between said tongues.
Claim 25
Dependent Claim
24 words
The assembly of claim 21 including: ring seal means located inwardly of the circular spring means between the valve body and segment seal means.
Claim 26
Dependent Claim
27 words
The assembly of claim 13 wherein: the axis of movement of the segment seal means is generally parallel to the axis of rotation of the valve body.
Claim 27
Dependent Claim
241 words
A rotary valve assembly comprising: housing means having a cylindrical surface and fluid inlet and outlet ports open to the inner surface, rotatable means located within the housing means for controlling the flow of fluid into and out of the assembly, said rotatable valving means having a valving chamber open to means to accommodate a fluid, said rotatable valving means having a valve body, said valve body having a cylindrical outer surface spaced from the cylindrical inner surface of the housing means, segment seal means mounted on the valve body engageable with said cylindrical inner surface of said housing means, said segment seal means having a passage in communication with the second chamber and open to said cylindrical inner surface to allow fluid to flow into and out of said chamber, cooperating means on said segment seal means and valve body to move the segment seal means with the valve body and allow the segment seal means to move about an axis generally parallel to said cylindrical inner surface of the housing means, biasing means located between the valve body and segment seal means to hold the segment seal means into engagement with the cylindrical inner surface of the housing means, and means operable to rotate said valve body whereby said valving chamber sequentially moves into alignment with said ports allowing fluid to flow in said fluid inlet and outlet ports into and out of said chamber in the valve body.
Claim 28
Dependent Claim
241 words
A rotary valve assembly comprising: housing means having a cylindrical surface and fluid inlet and outlet ports open to the inner surface, rotatable means located within the housing means for controlling the flow of fluid into and out of the assembly, said rotatable valving means having a valving chamber open to means to accommodate a fluid, said rotatable valving means having a valve body, said valve body having a cylindrical outer surface spaced from the cylindrical inner surface of the housing means, segment seal means mounted on the valve body engageable with said cylindrical inner surface of said housing means, said segment seal means having a passage in communication with the second chamber and open to said cylindrical inner surface to allow fluid to flow into and out of said chamber, cooperating means on said segment seal means and valve body to move the segment seal means with the valve body and allow the segment seal means to move about an axis generally parallel to said cylindrical inner surface of the housing means, biasing means located between the valve body and segment seal means to hold the segment seal means into engagement with the cylindrical inner surface of the housing means, and means operable to rotate said valve body whereby said valving chamber sequentially moves into alignment with said ports allowing fluid to flow in said fluid inlet and outlet ports into and out of said chamber in the valve body.
Claim 29
Dependent Claim
14 words
The assembly of claim 25 wherein: the segment seal means is a ceramic member.
Claim 30
Dependent Claim
55 words
The assembly of claim 25 wherein: said segment seal means has a first outside surface portion surrounding the outer portion of the valving passage engageable with the cylindrical inside surface of the housing means, and a second surface portion adjacent the first outside surface portion spaced from said cylindrical inside surface of the housing means.
Claim 31
Dependent Claim
29 words
The assembly of claim 25 wherein: said housing means includes a sleeve having said cylindrical inner surface, said sleeve having said fluid inlet port and said fluid outlet port.
Claim 32
Dependent Claim
22 words
The assembly of claim 28 wherein: said segment seal means is a ceramic member, and said sleeve is a cylindrical ceramic member.
Claim 33
Dependent Claim
53 words
The assembly of claim 25 wherein: said valve body has a circumferential outwardly directed upper lip and a lower lip, said segment seal means being located between said upper and lower lips, said cooperating means comprising a slot in each lip and pin means secured to the valve body extended into the slots.
Claim 34
Dependent Claim
52 words
The assembly of claim 25 wherein: said segment seal means has an outside surface portion surrounding the outer portion of the valving passage engageable with the cylindrical inner surface of the housing means, and land means located adjacent the outside surface portion engageable with the cylindrical inner surface of the housing means.
Claim 35
Dependent Claim
42 words
The assembly of claim 25 wherein: said biasing means comprises circular spring means surrounding the valve passage and engageable with the valve body and segment seal means, said spring means also providing a seal between the valve body and segment seal means.
Claim 36
Dependent Claim
26 words
The assembly of claim 32 including: said segment seal means has tongues adjacent opposite sides of the passage, said spring means being located between said tongues.
Claim 37
Dependent Claim
24 words
The assembly of claim 32 including: ring seal means located inwardly of the circular spring means between the valve body and segment seal means.
Claim 38
Dependent Claim
27 words
The assembly of claim 25 wherein: the axis of movement of the segment seal means is generally parallel to the axis of rotation of the valve body.
References Cited (Backward Citations)
US3130953A
Cited
US1042712A
Cited
US1292597A
Cited
US1170769A
Cited
US1215993A
Cited
US1719508A
Cited
US1632517A
Cited
US1581942A
Cited
US1700862A
Cited
US1651207A
Cited
US1692235A
Cited
US1733946A
Cited
US1782389A
Cited
US1724458A
Cited
US1758242A
Cited
US2017196A
Cited
US1971060A
Cited
GB401985A
Cited
US2245743A
Cited
US2222059A
Cited
US2395994A
Cited
GB570354A
Cited
US2471941A
Cited
US2437181A
Cited
US2500794A
Cited
US2730088A
Cited
US3039448A
Cited
US3395889A
Cited
US3489158A
Cited
US3395680A
Cited
US4019488A
Cited
GB1479347A
Cited
US4036184A
Cited
US4404934A
Cited
US4467751A
Cited
US4311119A
Cited
US4494500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-20 | 1992-09-19 | 1993-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-20 | 1996-09-19 | 1997-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-20 | 2000-09-19 | 2001-03-21 | $7700.00 | Window Closed / Lapsed |