Patent US4694787A successfully refreshed from Google Patents.
US4694787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic fluid distributing valve timing device
Assignee: Individual
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Filing: 1984-02-27
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Granted: 1987-09-22
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Expires: 2004-02-27
Abstract
Abstract A automatic fluid distributing valve timing device in combination with an internal combustion engine of which is adjustable and variable, a device controlling opening and closing degrees of the valves in relationship to the crankshaft of a common reciprocating engine. This device controls the opening of a valve by a pressurized oil co-ordinating disk working in conjunction with a actuating piston attached to the cylinder head of a high performance engine, of which when fed by oil pressure, opens intake and exhaust valves by the alignment of two elements allowing oil to flow for a regulated time and of which is adjustable, adjusting valve duration, overlap and lift. This device eliminates multiple working parts of the engines valve train such as the conventional cam, lifters, push rods and rocker arms, eliminating a large percent of friction and horsepower loss. The novel invention has very few working parts compared to the above mentioned valve train, resulting in a large horsepower increase. The device gives the proper valve duration, overlap and lift throughout the entire r.p.m. range automatically, while improving engine combustion, fuel economy and smog pollution emissions, such as carbon monoxide and hydrocarbons. This may be a new break through in the smog control problems, which will revolutionize the combustion engine.
Inventors
- 👤 Gary E. Rhoads
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:35
CPC Classifications
F; F01; F01L; F01L13/00; F01L13/0015; F01L13/0031; F01L9/00; F01L9/10; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/22
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
256 words
In an internal combustion engine having a plurality of combustion chambers each of which has an intake valve and an exhaust valve, the invention comprising: a fluid reservoir; a high pressure fluid pump connected to said fluid reservoir; a high pressure fluid distributor assembly connected to said high pressure fluid pump, said distributor assembly having a rotor fixedly mounted on a shaft so that they rotate as one, said rotor being in the form of a disc having a front face and a rear face, said rotor having a radially extending fluid passage within its interior, said fluid passage having an inner end and an outer end, means connecting said inner end to said high pressure fluid pump; said rotor having at least a first outlet port on its front face that is in communication with the fluid passage within said rotor; each of the valves of the engine having an actuation unit connected to the top of said valve for opening said valve at a predetermined time; manifold means periodically connecting said fluid passage to each of said individual actuation units in a predetermined sequence, said manifold means having at least a primary annular shaped disc that is positioned flush against the front face of said rotor, said primary disc having a predetermined number of aperatures spaced circumferentially about a radius on said primary disc equal to that of the radius of said first outlet port, said individual apertures each being connected to its own separate valve actuation unit; and means for rotating said rotor.
Claim 2
Dependent Claim
256 words
In an internal combustion engine having a plurality of combustion chambers each of which has an intake valve and an exhaust valve, the invention comprising: a fluid reservoir; a high pressure fluid pump connected to said fluid reservoir; a high pressure fluid distributor assembly connected to said high pressure fluid pump, said distributor assembly having a rotor fixedly mounted on a shaft so that they rotate as one, said rotor being in the form of a disc having a front face and a rear face, said rotor having a radially extending fluid passage within its interior, said fluid passage having an inner end and an outer end, means connecting said inner end to said high pressure fluid pump; said rotor having at least a first outlet port on its front face that is in communication with the fluid passage within said rotor; each of the valves of the engine having an actuation unit connected to the top of said valve for opening said valve at a predetermined time; manifold means periodically connecting said fluid passage to each of said individual actuation units in a predetermined sequence, said manifold means having at least a primary annular shaped disc that is positioned flush against the front face of said rotor, said primary disc having a predetermined number of aperatures spaced circumferentially about a radius on said primary disc equal to that of the radius of said first outlet port, said individual apertures each being connected to its own separate valve actuation unit; and means for rotating said rotor.
Claim 3
Dependent Claim
93 words
The invention recited in claim 1 further comprising a secondary disk that seats within said primary disk, said secondary disk being positioned flush against the front face of said rotor, said rotor having a second outlet port on its face that is in communication with the fluid passage within said rotor, said secondary disk having a predetermined number of apertures spaced circumferentially about a radius on said secondary disk equal to that of the radius of said secondary outlet port, said individual apertures each being connected to its own separate valve actuation unit.
Claim 4
Dependent Claim
19 words
The invention recited in claim 2 wherein the apertures in said primary and secondary disks have an oval shape.
Claim 5
Dependent Claim
26 words
The invention recited in claim 2 further comprising means for varying the flow of high pressure fluid through said apertures in said primary and secondary disks.
Claim 6
Dependent Claim
262 words
In an internal combustion engine having a plurality of combustion chambers each of which has an intake valve and an exhaust valve, the invention comprising: a fluid reservoir; a high pressure fluid pump connected to said fluid reservoir; a high pressure fluid distributor assembly connected to said high pressure fluid pump; said distributor assembly having a rotor fixedly mounted on a shaft so that they rotate as one, said rotor being in the form of a solid disc having a front face and a rear face, said rotor having a radially extending fluid passage within its interior, said fluid passage having an inner end and an outer end, means connecting the inner end of the fluid passage within said rotor to said high pressure fluid pump comprising an axial bore hole in said shaft that aligns with an inlet port on the front face of said rotor, said inlet port being connected to inner end of said fluid passage; said rotor having a first outlet port on its front face that is in communication with the fluid passage within said rotor, said rotor having a second outlet port on its front face that is in communication with the fluid passage within said rotor, said outlet ports being radially spaced from each other; each of the valves of the engine having an actuation unit connected to the top of said valves for opening said valve at a predetermined time; manifold means periodically connecting said fluid passage to each of said individual actuation units in a predetermined sequence; and means for rotating said rotor.
Claim 7
Dependent Claim
262 words
In an internal combustion engine having a plurality of combustion chambers each of which has an intake valve and an exhaust valve, the invention comprising: a fluid reservoir; a high pressure fluid pump connected to said fluid reservoir; a high pressure fluid distributor assembly connected to said high pressure fluid pump; said distributor assembly having a rotor fixedly mounted on a shaft so that they rotate as one, said rotor being in the form of a solid disc having a front face and a rear face, said rotor having a radially extending fluid passage within its interior, said fluid passage having an inner end and an outer end, means connecting the inner end of the fluid passage within said rotor to said high pressure fluid pump comprising an axial bore hole in said shaft that aligns with an inlet port on the front face of said rotor, said inlet port being connected to inner end of said fluid passage; said rotor having a first outlet port on its front face that is in communication with the fluid passage within said rotor, said rotor having a second outlet port on its front face that is in communication with the fluid passage within said rotor, said outlet ports being radially spaced from each other; each of the valves of the engine having an actuation unit connected to the top of said valves for opening said valve at a predetermined time; manifold means periodically connecting said fluid passage to each of said individual actuation units in a predetermined sequence; and means for rotating said rotor.
Claim 8
Dependent Claim
24 words
The invention recited in claim 5 wherein said means for rotating said rotor comprises gear teeth on the outer radial surface of said disk.
Claim 9
Dependent Claim
26 words
The invention recited in claim 5 wherein each of said actuation units have a piston that is connected to the top end of a valve stem.
Claim 10
Dependent Claim
22 words
The invention recited in claim 5 wherein each of said actuation units have bleed down means for allowing the valves to close.
Claim 11
Dependent Claim
182 words
In an internal combustion engine having a plurality of combustion chambers each of which has an intake valve and an exhaust valve, the invention comprising: each of said intake valves and exhaust valves having a return spring for closing said valves; each of said intake valves and exhaust valves having an actuation unit connected to the top of said valve for opening said valves at a predetermined time; a source of power; a distributor assembly connected to said power source, said distributor assembly having properly timed rotary means for sequentially transmitting power from said power source to each of said actuation units in a predetermined order for opening their valves; and delay means that operate to counter the force of said return springs for closing said intake and exhaust valves and for delaying the opening of the valves and shortening the closing points of said intake valves and exhaust valves to automatically allow the opening cycle of the valve to open later and close quicker at low engine rpm and to automatically open sooner and stay open longer at higher engine rpm.
Claim 12
Dependent Claim
182 words
In an internal combustion engine having a plurality of combustion chambers each of which has an intake valve and an exhaust valve, the invention comprising: each of said intake valves and exhaust valves having a return spring for closing said valves; each of said intake valves and exhaust valves having an actuation unit connected to the top of said valve for opening said valves at a predetermined time; a source of power; a distributor assembly connected to said power source, said distributor assembly having properly timed rotary means for sequentially transmitting power from said power source to each of said actuation units in a predetermined order for opening their valves; and delay means that operate to counter the force of said return springs for closing said intake and exhaust valves and for delaying the opening of the valves and shortening the closing points of said intake valves and exhaust valves to automatically allow the opening cycle of the valve to open later and close quicker at low engine rpm and to automatically open sooner and stay open longer at higher engine rpm.
Claim 13
Dependent Claim
186 words
In an internal combustion engine having a plurality of combustion chambers each of which has an intake valve and an exhaust valve, the invention comprising: each of said intake valves and exhaust valves having a return spring for closing said valves; each of said intake valves and exhaust valves having an actuation unit connected to the top of said valve for opening said valves at a predetermined time; a source of power; a distributor assembly connected to said power source, said distributor assembly having properly timed rotary means for sequentially transmitting power from said power source to each of said actuation units in a predetermined order for opening their valves; and said actuation units having means that operate to counter the force of said return valve springs for closing said intake and exhaust valves and for delaying the opening of the valves and shortening the closing points of said intake valves and exhaust valves to automatically allow the opening cycle of the valve to open later and close quicker at low engine rpm and to automatically open sooner and stay open longer at higher engine rpm.
Claim 14
Dependent Claim
186 words
In an internal combustion engine having a plurality of combustion chambers each of which has an intake valve and an exhaust valve, the invention comprising: each of said intake valves and exhaust valves having a return spring for closing said valves; each of said intake valves and exhaust valves having an actuation unit connected to the top of said valve for opening said valves at a predetermined time; a source of power; a distributor assembly connected to said power source, said distributor assembly having properly timed rotary means for sequentially transmitting power from said power source to each of said actuation units in a predetermined order for opening their valves; and said actuation units having means that operate to counter the force of said return valve springs for closing said intake and exhaust valves and for delaying the opening of the valves and shortening the closing points of said intake valves and exhaust valves to automatically allow the opening cycle of the valve to open later and close quicker at low engine rpm and to automatically open sooner and stay open longer at higher engine rpm.
Claim 15
Dependent Claim
50 words
The invention recited in claim 10 wherein each of said actuation units comprises a source of power to operate the opening of the intake valves and exhaust valves and a second source of power in said actuation unit connected to means for varing valve lift automatically according to engine rpm.
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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) | 1990-09-21 | 1991-03-23 | 1991-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-21 | 1995-03-23 | 1995-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-21 | 1999-03-23 | 1999-09-22 | $7700.00 | Window Closed / Lapsed |